^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Module for pnfs flexfile layout driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Tao Peng <bergwolf@primarydata.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/nfs_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/nfs_mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/nfs_page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/sched/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/sunrpc/metrics.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "flexfilelayout.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "../nfs4session.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "../nfs4idmap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "../internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "../delegation.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "../nfs4trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "../iostat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "../nfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "../nfs42.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define NFSDBG_FACILITY NFSDBG_PNFS_LD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define FF_LAYOUT_POLL_RETRY_MAX (15*HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define FF_LAYOUTRETURN_MAXERR 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static unsigned short io_maxretrans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static const struct pnfs_commit_ops ff_layout_commit_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static void ff_layout_read_record_layoutstats_done(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct nfs_pgio_header *hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int ff_layout_mirror_prepare_stats(struct pnfs_layout_hdr *lo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct nfs42_layoutstat_devinfo *devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int dev_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static void ff_layout_encode_ff_layoutupdate(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) const struct nfs42_layoutstat_devinfo *devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct nfs4_ff_layout_mirror *mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static struct pnfs_layout_hdr *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct nfs4_flexfile_layout *ffl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) ffl = kzalloc(sizeof(*ffl), gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (ffl) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) pnfs_init_ds_commit_info(&ffl->commit_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) INIT_LIST_HEAD(&ffl->error_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) INIT_LIST_HEAD(&ffl->mirrors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) ffl->last_report_time = ktime_get();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) ffl->commit_info.ops = &ff_layout_commit_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return &ffl->generic_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) ff_layout_free_layout_hdr(struct pnfs_layout_hdr *lo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(lo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct nfs4_ff_layout_ds_err *err, *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) list_for_each_entry_safe(err, n, &ffl->error_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) list_del(&err->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) kfree(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) kfree_rcu(ffl, generic_hdr.plh_rcu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static int decode_pnfs_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) p = xdr_inline_decode(xdr, NFS4_STATEID_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) stateid->type = NFS4_PNFS_DS_STATEID_TYPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) memcpy(stateid->data, p, NFS4_STATEID_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) dprintk("%s: stateid id= [%x%x%x%x]\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) p[0], p[1], p[2], p[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int decode_deviceid(struct xdr_stream *xdr, struct nfs4_deviceid *devid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) p = xdr_inline_decode(xdr, NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) memcpy(devid, p, NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) nfs4_print_deviceid(devid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int decode_nfs_fh(struct xdr_stream *xdr, struct nfs_fh *fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) fh->size = be32_to_cpup(p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (fh->size > NFS_MAXFHSIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) printk(KERN_ERR "NFS flexfiles: Too big fh received %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return -EOVERFLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* fh.data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) p = xdr_inline_decode(xdr, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) memcpy(&fh->data, p, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) dprintk("%s: fh len %d\n", __func__, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Currently only stringified uids and gids are accepted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * I.e., kerberos is not supported to the DSes, so no pricipals.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * That means that one common function will suffice, but when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * principals are added, this should be split to accomodate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) * calls to both nfs_map_name_to_uid() and nfs_map_group_to_gid().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) decode_name(struct xdr_stream *xdr, u32 *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /* opaque_length(4)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) len = be32_to_cpup(p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (len < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) dprintk("%s: len %u\n", __func__, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* opaque body */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) p = xdr_inline_decode(xdr, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) if (!nfs_map_string_to_numeric((char *)p, len, id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static bool ff_mirror_match_fh(const struct nfs4_ff_layout_mirror *m1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) const struct nfs4_ff_layout_mirror *m2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (m1->fh_versions_cnt != m2->fh_versions_cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) for (i = 0; i < m1->fh_versions_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) bool found_fh = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) for (j = 0; j < m2->fh_versions_cnt; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (nfs_compare_fh(&m1->fh_versions[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) &m2->fh_versions[j]) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) found_fh = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (!found_fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static struct nfs4_ff_layout_mirror *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) ff_layout_add_mirror(struct pnfs_layout_hdr *lo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct nfs4_ff_layout_mirror *mirror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct nfs4_flexfile_layout *ff_layout = FF_LAYOUT_FROM_HDR(lo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct nfs4_ff_layout_mirror *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct inode *inode = lo->plh_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) spin_lock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) list_for_each_entry(pos, &ff_layout->mirrors, mirrors) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if (memcmp(&mirror->devid, &pos->devid, sizeof(pos->devid)) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (!ff_mirror_match_fh(mirror, pos))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (refcount_inc_not_zero(&pos->ref)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) list_add(&mirror->mirrors, &ff_layout->mirrors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) mirror->layout = lo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ff_layout_remove_mirror(struct nfs4_ff_layout_mirror *mirror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (mirror->layout == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) inode = mirror->layout->plh_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) spin_lock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) list_del(&mirror->mirrors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) mirror->layout = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static struct nfs4_ff_layout_mirror *ff_layout_alloc_mirror(gfp_t gfp_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) mirror = kzalloc(sizeof(*mirror), gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (mirror != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) spin_lock_init(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) refcount_set(&mirror->ref, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) INIT_LIST_HEAD(&mirror->mirrors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static void ff_layout_free_mirror(struct nfs4_ff_layout_mirror *mirror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) const struct cred *cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) ff_layout_remove_mirror(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) kfree(mirror->fh_versions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) cred = rcu_access_pointer(mirror->ro_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) put_cred(cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) cred = rcu_access_pointer(mirror->rw_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) put_cred(cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) nfs4_ff_layout_put_deviceid(mirror->mirror_ds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) kfree(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static void ff_layout_put_mirror(struct nfs4_ff_layout_mirror *mirror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (mirror != NULL && refcount_dec_and_test(&mirror->ref))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) ff_layout_free_mirror(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static void ff_layout_free_mirror_array(struct nfs4_ff_layout_segment *fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) for (i = 0; i < fls->mirror_array_cnt; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) ff_layout_put_mirror(fls->mirror_array[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static void _ff_layout_free_lseg(struct nfs4_ff_layout_segment *fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (fls) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ff_layout_free_mirror_array(fls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) kfree(fls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) ff_lseg_match_mirrors(struct pnfs_layout_segment *l1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct pnfs_layout_segment *l2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) const struct nfs4_ff_layout_segment *fl1 = FF_LAYOUT_LSEG(l1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) const struct nfs4_ff_layout_segment *fl2 = FF_LAYOUT_LSEG(l1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (fl1->mirror_array_cnt != fl2->mirror_array_cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) for (i = 0; i < fl1->mirror_array_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (fl1->mirror_array[i] != fl2->mirror_array[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) static bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) ff_lseg_range_is_after(const struct pnfs_layout_range *l1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) const struct pnfs_layout_range *l2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) u64 end1, end2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (l1->iomode != l2->iomode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) return l1->iomode != IOMODE_READ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) end1 = pnfs_calc_offset_end(l1->offset, l1->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) end2 = pnfs_calc_offset_end(l2->offset, l2->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (end1 < l2->offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (end2 < l1->offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) return l2->offset <= l1->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) static bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) ff_lseg_merge(struct pnfs_layout_segment *new,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct pnfs_layout_segment *old)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) u64 new_end, old_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) if (test_bit(NFS_LSEG_LAYOUTRETURN, &old->pls_flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (new->pls_range.iomode != old->pls_range.iomode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) old_end = pnfs_calc_offset_end(old->pls_range.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) old->pls_range.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (old_end < new->pls_range.offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) new_end = pnfs_calc_offset_end(new->pls_range.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) new->pls_range.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (new_end < old->pls_range.offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (!ff_lseg_match_mirrors(new, old))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /* Mergeable: copy info from 'old' to 'new' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (new_end < old_end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) new_end = old_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if (new->pls_range.offset < old->pls_range.offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) new->pls_range.offset = old->pls_range.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) new->pls_range.length = pnfs_calc_offset_length(new->pls_range.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) new_end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (test_bit(NFS_LSEG_ROC, &old->pls_flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) set_bit(NFS_LSEG_ROC, &new->pls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) ff_layout_add_lseg(struct pnfs_layout_hdr *lo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct list_head *free_me)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) pnfs_generic_layout_insert_lseg(lo, lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ff_lseg_range_is_after,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ff_lseg_merge,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) free_me);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) static void ff_layout_sort_mirrors(struct nfs4_ff_layout_segment *fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) for (i = 0; i < fls->mirror_array_cnt - 1; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) for (j = i + 1; j < fls->mirror_array_cnt; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (fls->mirror_array[i]->efficiency <
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) fls->mirror_array[j]->efficiency)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) swap(fls->mirror_array[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) fls->mirror_array[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static struct pnfs_layout_segment *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct nfs4_layoutget_res *lgr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) gfp_t gfp_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct pnfs_layout_segment *ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct nfs4_ff_layout_segment *fls = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct xdr_stream stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct xdr_buf buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct page *scratch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) u64 stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) u32 mirror_array_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) dprintk("--> %s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) scratch = alloc_page(gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (!scratch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) xdr_init_decode_pages(&stream, &buf, lgr->layoutp->pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) lgr->layoutp->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /* stripe unit and mirror_array_cnt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) p = xdr_inline_decode(&stream, 8 + 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) p = xdr_decode_hyper(p, &stripe_unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) mirror_array_cnt = be32_to_cpup(p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) dprintk("%s: stripe_unit=%llu mirror_array_cnt=%u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) stripe_unit, mirror_array_cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (mirror_array_cnt > NFS4_FLEXFILE_LAYOUT_MAX_MIRROR_CNT ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) mirror_array_cnt == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) fls = kzalloc(struct_size(fls, mirror_array, mirror_array_cnt),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (!fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) fls->mirror_array_cnt = mirror_array_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) fls->stripe_unit = stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) for (i = 0; i < fls->mirror_array_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) struct cred *kcred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) const struct cred __rcu *cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) kuid_t uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) kgid_t gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) u32 ds_count, fh_count, id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) p = xdr_inline_decode(&stream, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) ds_count = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) /* FIXME: allow for striping? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (ds_count != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) fls->mirror_array[i] = ff_layout_alloc_mirror(gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (fls->mirror_array[i] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) fls->mirror_array[i]->ds_count = ds_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) /* deviceid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) rc = decode_deviceid(&stream, &fls->mirror_array[i]->devid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) /* efficiency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) p = xdr_inline_decode(&stream, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) fls->mirror_array[i]->efficiency = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) /* stateid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) rc = decode_pnfs_stateid(&stream, &fls->mirror_array[i]->stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) /* fh */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) p = xdr_inline_decode(&stream, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) fh_count = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) fls->mirror_array[i]->fh_versions =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) kcalloc(fh_count, sizeof(struct nfs_fh),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (fls->mirror_array[i]->fh_versions == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) for (j = 0; j < fh_count; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) rc = decode_nfs_fh(&stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) &fls->mirror_array[i]->fh_versions[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) fls->mirror_array[i]->fh_versions_cnt = fh_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) /* user */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) rc = decode_name(&stream, &id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) uid = make_kuid(&init_user_ns, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) /* group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) rc = decode_name(&stream, &id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) gid = make_kgid(&init_user_ns, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (gfp_flags & __GFP_FS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) kcred = prepare_kernel_cred(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) unsigned int nofs_flags = memalloc_nofs_save();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) kcred = prepare_kernel_cred(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) memalloc_nofs_restore(nofs_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (!kcred)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) goto out_err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) kcred->fsuid = uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) kcred->fsgid = gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) cred = RCU_INITIALIZER(kcred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (lgr->range.iomode == IOMODE_READ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) mirror = ff_layout_add_mirror(lh, fls->mirror_array[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (mirror != fls->mirror_array[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) /* swap cred ptrs so free_mirror will clean up old */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) if (lgr->range.iomode == IOMODE_READ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) cred = xchg(&mirror->ro_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) cred = xchg(&mirror->rw_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) ff_layout_free_mirror(fls->mirror_array[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) fls->mirror_array[i] = mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) dprintk("%s: iomode %s uid %u gid %u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) lgr->range.iomode == IOMODE_READ ? "READ" : "RW",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) from_kuid(&init_user_ns, uid),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) from_kgid(&init_user_ns, gid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) p = xdr_inline_decode(&stream, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) goto out_sort_mirrors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) fls->flags = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) p = xdr_inline_decode(&stream, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) goto out_sort_mirrors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) for (i=0; i < fls->mirror_array_cnt; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) fls->mirror_array[i]->report_interval = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) out_sort_mirrors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) ff_layout_sort_mirrors(fls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) ret = &fls->generic_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) dprintk("<-- %s (success)\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) out_free_page:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) __free_page(scratch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) out_err_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) _ff_layout_free_lseg(fls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) ret = ERR_PTR(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) dprintk("<-- %s (%d)\n", __func__, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) goto out_free_page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) ff_layout_free_lseg(struct pnfs_layout_segment *lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) dprintk("--> %s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (lseg->pls_range.iomode == IOMODE_RW) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct nfs4_flexfile_layout *ffl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) ffl = FF_LAYOUT_FROM_HDR(lseg->pls_layout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) inode = ffl->generic_hdr.plh_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) spin_lock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) pnfs_generic_ds_cinfo_release_lseg(&ffl->commit_info, lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) _ff_layout_free_lseg(fls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) nfs4_ff_start_busy_timer(struct nfs4_ff_busy_timer *timer, ktime_t now)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) /* first IO request? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) if (atomic_inc_return(&timer->n_ops) == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) timer->start_time = now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) static ktime_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) nfs4_ff_end_busy_timer(struct nfs4_ff_busy_timer *timer, ktime_t now)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) ktime_t start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) if (atomic_dec_return(&timer->n_ops) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) WARN_ON_ONCE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) start = timer->start_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) timer->start_time = now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) return ktime_sub(now, start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) struct nfs4_ff_layoutstat *layoutstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) ktime_t now)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) s64 report_interval = FF_LAYOUTSTATS_REPORT_INTERVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(mirror->layout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) if (!mirror->start_time)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) mirror->start_time = now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (mirror->report_interval != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) report_interval = (s64)mirror->report_interval * 1000LL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) else if (layoutstats_timer != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) report_interval = (s64)layoutstats_timer * 1000LL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (ktime_to_ms(ktime_sub(now, ffl->last_report_time)) >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) report_interval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) ffl->last_report_time = now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) nfs4_ff_layout_stat_io_update_requested(struct nfs4_ff_layoutstat *layoutstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) __u64 requested)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) iostat->ops_requested++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) iostat->bytes_requested += requested;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) nfs4_ff_layout_stat_io_update_completed(struct nfs4_ff_layoutstat *layoutstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) __u64 requested,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) __u64 completed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) ktime_t time_completed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) ktime_t time_started)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) ktime_t completion_time = ktime_sub(time_completed, time_started);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) ktime_t timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) iostat->ops_completed++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) iostat->bytes_completed += completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) iostat->bytes_not_delivered += requested - completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) timer = nfs4_ff_end_busy_timer(&layoutstat->busy_timer, time_completed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) iostat->total_busy_time =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) ktime_add(iostat->total_busy_time, timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) iostat->aggregate_completion_time =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) ktime_add(iostat->aggregate_completion_time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) completion_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) nfs4_ff_layout_stat_io_start_read(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) struct nfs4_ff_layout_mirror *mirror,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) __u64 requested, ktime_t now)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) bool report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) report = nfs4_ff_layoutstat_start_io(mirror, &mirror->read_stat, now);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) nfs4_ff_layout_stat_io_update_requested(&mirror->read_stat, requested);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (report)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) pnfs_report_layoutstat(inode, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) nfs4_ff_layout_stat_io_end_read(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) struct nfs4_ff_layout_mirror *mirror,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) __u64 requested,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) __u64 completed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) nfs4_ff_layout_stat_io_update_completed(&mirror->read_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) requested, completed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) ktime_get(), task->tk_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) nfs4_ff_layout_stat_io_start_write(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) struct nfs4_ff_layout_mirror *mirror,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) __u64 requested, ktime_t now)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) bool report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) report = nfs4_ff_layoutstat_start_io(mirror , &mirror->write_stat, now);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) nfs4_ff_layout_stat_io_update_requested(&mirror->write_stat, requested);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if (report)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) pnfs_report_layoutstat(inode, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) nfs4_ff_layout_stat_io_end_write(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) struct nfs4_ff_layout_mirror *mirror,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) __u64 requested,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) __u64 completed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) enum nfs3_stable_how committed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) if (committed == NFS_UNSTABLE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) requested = completed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) nfs4_ff_layout_stat_io_update_completed(&mirror->write_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) requested, completed, ktime_get(), task->tk_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) ff_layout_mark_ds_unreachable(struct pnfs_layout_segment *lseg, u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) if (devid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) nfs4_mark_deviceid_unavailable(devid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) ff_layout_mark_ds_reachable(struct pnfs_layout_segment *lseg, u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) if (devid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) nfs4_mark_deviceid_available(devid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) static struct nfs4_pnfs_ds *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) ff_layout_choose_ds_for_read(struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) u32 start_idx, u32 *best_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) bool check_device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) bool fail_return = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) u32 idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) /* mirrors are initially sorted by efficiency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (idx+1 == fls->mirror_array_cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) fail_return = !check_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) mirror = FF_LAYOUT_COMP(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) ds = nfs4_ff_layout_prepare_ds(lseg, mirror, fail_return);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) if (!ds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (check_device &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) nfs4_test_deviceid_unavailable(&mirror->mirror_ds->id_node))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) *best_idx = idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) return ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) static struct nfs4_pnfs_ds *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) ff_layout_choose_any_ds_for_read(struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) u32 start_idx, u32 *best_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) return ff_layout_choose_ds_for_read(lseg, start_idx, best_idx, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) static struct nfs4_pnfs_ds *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) ff_layout_choose_valid_ds_for_read(struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) u32 start_idx, u32 *best_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) return ff_layout_choose_ds_for_read(lseg, start_idx, best_idx, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) static struct nfs4_pnfs_ds *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) ff_layout_choose_best_ds_for_read(struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) u32 start_idx, u32 *best_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) ds = ff_layout_choose_valid_ds_for_read(lseg, start_idx, best_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) if (ds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) return ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) return ff_layout_choose_any_ds_for_read(lseg, start_idx, best_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) static struct nfs4_pnfs_ds *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) ff_layout_get_ds_for_read(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) u32 *best_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) struct pnfs_layout_segment *lseg = pgio->pg_lseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) ds = ff_layout_choose_best_ds_for_read(lseg, pgio->pg_mirror_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) best_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) if (ds || !pgio->pg_mirror_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) return ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) return ff_layout_choose_best_ds_for_read(lseg, 0, best_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) ff_layout_pg_get_read(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) struct nfs_page *req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) bool strict_iomode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) pnfs_put_lseg(pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) nfs_req_openctx(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) req_offset(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) req->wb_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) IOMODE_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) strict_iomode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) if (IS_ERR(pgio->pg_lseg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) pgio->pg_error = PTR_ERR(pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) pgio->pg_lseg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) ff_layout_pg_check_layout(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) struct nfs_page *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) pnfs_generic_pg_check_layout(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) pnfs_generic_pg_check_range(pgio, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) struct nfs_page *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) struct nfs_pgio_mirror *pgm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) u32 ds_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) retry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) ff_layout_pg_check_layout(pgio, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) /* Use full layout for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) if (!pgio->pg_lseg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) ff_layout_pg_get_read(pgio, req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) if (!pgio->pg_lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) goto out_nolseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) if (ff_layout_avoid_read_on_rw(pgio->pg_lseg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) ff_layout_pg_get_read(pgio, req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) if (!pgio->pg_lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) goto out_nolseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) ds = ff_layout_get_ds_for_read(pgio, &ds_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) if (!ds) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) goto out_mds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) pnfs_generic_pg_cleanup(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) /* Sleep for 1 second before retrying */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) ssleep(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) goto retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) mirror = FF_LAYOUT_COMP(pgio->pg_lseg, ds_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) pgm = &pgio->pg_mirrors[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].rsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) pgio->pg_mirror_idx = ds_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) if (NFS_SERVER(pgio->pg_inode)->flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) (NFS_MOUNT_SOFT|NFS_MOUNT_SOFTERR))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) pgio->pg_maxretrans = io_maxretrans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) out_nolseg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) if (pgio->pg_error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) out_mds:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) trace_pnfs_mds_fallback_pg_init_read(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) 0, NFS4_MAX_UINT64, IOMODE_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) NFS_I(pgio->pg_inode)->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) pgio->pg_maxretrans = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) nfs_pageio_reset_read_mds(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) struct nfs_page *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) struct nfs_pgio_mirror *pgm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) retry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) ff_layout_pg_check_layout(pgio, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) if (!pgio->pg_lseg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) nfs_req_openctx(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) req_offset(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) req->wb_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) IOMODE_RW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) if (IS_ERR(pgio->pg_lseg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) pgio->pg_error = PTR_ERR(pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) pgio->pg_lseg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) /* If no lseg, fall back to write through mds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) if (pgio->pg_lseg == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) goto out_mds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) /* Use a direct mapping of ds_idx to pgio mirror_idx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) if (pgio->pg_mirror_count != FF_LAYOUT_MIRROR_COUNT(pgio->pg_lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) goto out_eagain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) for (i = 0; i < pgio->pg_mirror_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, mirror, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) if (!ds) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) goto out_mds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) pnfs_generic_pg_cleanup(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) /* Sleep for 1 second before retrying */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) ssleep(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) goto retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) pgm = &pgio->pg_mirrors[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].wsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) if (NFS_SERVER(pgio->pg_inode)->flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) (NFS_MOUNT_SOFT|NFS_MOUNT_SOFTERR))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) pgio->pg_maxretrans = io_maxretrans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) out_eagain:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) pnfs_generic_pg_cleanup(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) pgio->pg_error = -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) out_mds:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) trace_pnfs_mds_fallback_pg_init_write(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) 0, NFS4_MAX_UINT64, IOMODE_RW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) NFS_I(pgio->pg_inode)->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) pgio->pg_maxretrans = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) nfs_pageio_reset_write_mds(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) pgio->pg_error = -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) static unsigned int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) ff_layout_pg_get_mirror_count_write(struct nfs_pageio_descriptor *pgio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) struct nfs_page *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) if (!pgio->pg_lseg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) nfs_req_openctx(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) req_offset(req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) req->wb_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) IOMODE_RW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) if (IS_ERR(pgio->pg_lseg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) pgio->pg_error = PTR_ERR(pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) pgio->pg_lseg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) if (pgio->pg_lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) return FF_LAYOUT_MIRROR_COUNT(pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) trace_pnfs_mds_fallback_pg_get_mirror_count(pgio->pg_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) 0, NFS4_MAX_UINT64, IOMODE_RW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) NFS_I(pgio->pg_inode)->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) pgio->pg_lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) /* no lseg means that pnfs is not in use, so no mirroring here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) nfs_pageio_reset_write_mds(pgio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) static u32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) ff_layout_pg_set_mirror_write(struct nfs_pageio_descriptor *desc, u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) u32 old = desc->pg_mirror_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) desc->pg_mirror_idx = idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) return old;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) static struct nfs_pgio_mirror *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) ff_layout_pg_get_mirror_write(struct nfs_pageio_descriptor *desc, u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) return &desc->pg_mirrors[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) static const struct nfs_pageio_ops ff_layout_pg_read_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) .pg_init = ff_layout_pg_init_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) .pg_test = pnfs_generic_pg_test,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) .pg_doio = pnfs_generic_pg_readpages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) .pg_cleanup = pnfs_generic_pg_cleanup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) static const struct nfs_pageio_ops ff_layout_pg_write_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) .pg_init = ff_layout_pg_init_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) .pg_test = pnfs_generic_pg_test,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) .pg_doio = pnfs_generic_pg_writepages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) .pg_get_mirror_count = ff_layout_pg_get_mirror_count_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) .pg_cleanup = pnfs_generic_pg_cleanup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) .pg_get_mirror = ff_layout_pg_get_mirror_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) .pg_set_mirror = ff_layout_pg_set_mirror_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) static void ff_layout_reset_write(struct nfs_pgio_header *hdr, bool retry_pnfs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) struct rpc_task *task = &hdr->task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) pnfs_layoutcommit_inode(hdr->inode, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) if (retry_pnfs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) dprintk("%s Reset task %5u for i/o through pNFS "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) "(req %s/%llu, %u bytes @ offset %llu)\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) hdr->task.tk_pid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) hdr->inode->i_sb->s_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) (unsigned long long)NFS_FILEID(hdr->inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) (unsigned long long)hdr->args.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) hdr->completion_ops->reschedule_io(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) dprintk("%s Reset task %5u for i/o through MDS "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) "(req %s/%llu, %u bytes @ offset %llu)\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) hdr->task.tk_pid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) hdr->inode->i_sb->s_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) (unsigned long long)NFS_FILEID(hdr->inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) (unsigned long long)hdr->args.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) trace_pnfs_mds_fallback_write_done(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) IOMODE_RW, NFS_I(hdr->inode)->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) task->tk_status = pnfs_write_done_resend_to_mds(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) static void ff_layout_resend_pnfs_read(struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) u32 idx = hdr->pgio_mirror_idx + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) u32 new_idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) if (ff_layout_choose_any_ds_for_read(hdr->lseg, idx, &new_idx))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) ff_layout_send_layouterror(hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) pnfs_error_mark_layout_for_return(hdr->inode, hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) pnfs_read_resend_pnfs(hdr, new_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) static void ff_layout_reset_read(struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) struct rpc_task *task = &hdr->task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) pnfs_layoutcommit_inode(hdr->inode, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) pnfs_error_mark_layout_for_return(hdr->inode, hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) dprintk("%s Reset task %5u for i/o through MDS "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) "(req %s/%llu, %u bytes @ offset %llu)\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) hdr->task.tk_pid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) hdr->inode->i_sb->s_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) (unsigned long long)NFS_FILEID(hdr->inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) (unsigned long long)hdr->args.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) trace_pnfs_mds_fallback_read_done(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) IOMODE_READ, NFS_I(hdr->inode)->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) task->tk_status = pnfs_read_done_resend_to_mds(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) static int ff_layout_async_handle_error_v4(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) struct nfs4_state *state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) struct nfs_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) struct pnfs_layout_hdr *lo = lseg->pls_layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) struct inode *inode = lo->plh_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) switch (task->tk_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) case -NFS4ERR_BADSESSION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) case -NFS4ERR_BADSLOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) case -NFS4ERR_BAD_HIGH_SLOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) case -NFS4ERR_DEADSESSION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) case -NFS4ERR_SEQ_FALSE_RETRY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) case -NFS4ERR_SEQ_MISORDERED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) dprintk("%s ERROR %d, Reset session. Exchangeid "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) "flags 0x%x\n", __func__, task->tk_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) clp->cl_exchange_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) case -NFS4ERR_DELAY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) case -NFS4ERR_GRACE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) rpc_delay(task, FF_LAYOUT_POLL_RETRY_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) case -NFS4ERR_RETRY_UNCACHED_REP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) /* Invalidate Layout errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) case -NFS4ERR_PNFS_NO_LAYOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) case -ESTALE: /* mapped NFS4ERR_STALE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) case -EBADHANDLE: /* mapped NFS4ERR_BADHANDLE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) case -EISDIR: /* mapped NFS4ERR_ISDIR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) case -NFS4ERR_FHEXPIRED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) case -NFS4ERR_WRONG_TYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) dprintk("%s Invalid layout error %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) * Destroy layout so new i/o will get a new layout.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) * Layout will not be destroyed until all current lseg
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) * references are put. Mark layout as invalid to resend failed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) * i/o and all i/o waiting on the slot table to the MDS until
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) * layout is destroyed and a new valid layout is obtained.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) pnfs_destroy_layout(NFS_I(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) rpc_wake_up(&tbl->slot_tbl_waitq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) goto reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) /* RPC connection errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) case -ECONNREFUSED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) case -EHOSTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) case -EHOSTUNREACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) case -ENETUNREACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) case -EIO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) case -ETIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) case -EPIPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) dprintk("%s DS connection error %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) nfs4_delete_deviceid(devid->ld, devid->nfs_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) &devid->deviceid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) rpc_wake_up(&tbl->slot_tbl_waitq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) if (ff_layout_avoid_mds_available_ds(lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return -NFS4ERR_RESET_TO_PNFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) reset:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) dprintk("%s Retry through MDS. Error %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) return -NFS4ERR_RESET_TO_MDS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) task->tk_status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) /* Retry all errors through either pNFS or MDS except for -EJUKEBOX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) static int ff_layout_async_handle_error_v3(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) switch (task->tk_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) /* File access problems. Don't mark the device as unavailable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) case -EACCES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) case -ESTALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) case -EISDIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) case -EBADHANDLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) case -ELOOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) case -ENOSPC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) case -EJUKEBOX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) goto out_retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) dprintk("%s DS connection error %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) nfs4_delete_deviceid(devid->ld, devid->nfs_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) &devid->deviceid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) /* FIXME: Need to prevent infinite looping here. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) return -NFS4ERR_RESET_TO_PNFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) out_retry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) task->tk_status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) rpc_restart_call_prepare(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) static int ff_layout_async_handle_error(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) struct nfs4_state *state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) struct nfs_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) u32 idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) int vers = clp->cl_nfs_mod->rpc_vers->number;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) if (task->tk_status >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) ff_layout_mark_ds_reachable(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) /* Handle the case of an invalid layout segment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) if (!pnfs_is_valid_lseg(lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) return -NFS4ERR_RESET_TO_PNFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) switch (vers) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) return ff_layout_async_handle_error_v3(task, lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) return ff_layout_async_handle_error_v4(task, state, clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) /* should never happen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) WARN_ON_ONCE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) u32 idx, u64 offset, u64 length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) u32 *op_status, int opnum, int error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) u32 status = *op_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) if (status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) switch (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) case -ETIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) case -EPFNOSUPPORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) case -EPROTONOSUPPORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) case -EOPNOTSUPP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) case -ECONNREFUSED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) case -ECONNRESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) case -EHOSTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) case -EHOSTUNREACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) case -ENETUNREACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) case -EADDRINUSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) case -ENOBUFS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) case -EPIPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) case -EPERM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) *op_status = status = NFS4ERR_NXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) case -EACCES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) *op_status = status = NFS4ERR_ACCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) mirror = FF_LAYOUT_COMP(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) err = ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) mirror, offset, length, status, opnum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) switch (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) case NFS4ERR_DELAY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) case NFS4ERR_GRACE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) case NFS4ERR_NXIO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) ff_layout_mark_ds_unreachable(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) * Don't return the layout if this is a read and we still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) * have layouts to try
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) if (opnum == OP_READ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) dprintk("%s: err %d op %d status %u\n", __func__, err, opnum, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) /* NFS_PROTO call done callback routines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) static int ff_layout_read_done_cb(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) if (task->tk_status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) ff_layout_io_track_ds_error(hdr->lseg, hdr->pgio_mirror_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) &hdr->res.op_status, OP_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) trace_ff_layout_read_error(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) err = ff_layout_async_handle_error(task, hdr->args.context->state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) hdr->ds_clp, hdr->lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) hdr->pgio_mirror_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) trace_nfs4_pnfs_read(hdr, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) clear_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) clear_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) switch (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) case -NFS4ERR_RESET_TO_PNFS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) set_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) return task->tk_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) case -NFS4ERR_RESET_TO_MDS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) set_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) return task->tk_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) case -EAGAIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) goto out_eagain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) out_eagain:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) rpc_restart_call_prepare(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) static bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) ff_layout_need_layoutcommit(struct pnfs_layout_segment *lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) return !(FF_LAYOUT_LSEG(lseg)->flags & FF_FLAGS_NO_LAYOUTCOMMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) * We reference the rpc_cred of the first WRITE that triggers the need for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) * a LAYOUTCOMMIT, and use it to send the layoutcommit compound.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) * rfc5661 is not clear about which credential should be used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) * Flexlayout client should treat DS replied FILE_SYNC as DATA_SYNC, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) * to follow http://www.rfc-editor.org/errata_search.php?rfc=5661&eid=2751
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) * we always send layoutcommit after DS writes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) ff_layout_set_layoutcommit(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) struct pnfs_layout_segment *lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) loff_t end_offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) if (!ff_layout_need_layoutcommit(lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) pnfs_set_layoutcommit(inode, lseg, end_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) dprintk("%s inode %lu pls_end_pos %llu\n", __func__, inode->i_ino,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) (unsigned long long) NFS_I(inode)->layout->plh_lwb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) static void ff_layout_read_record_layoutstats_start(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) if (test_and_set_bit(NFS_IOHDR_STAT, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) nfs4_ff_layout_stat_io_start_read(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) task->tk_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) static void ff_layout_read_record_layoutstats_done(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) if (!test_and_clear_bit(NFS_IOHDR_STAT, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) nfs4_ff_layout_stat_io_end_read(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) hdr->res.count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) set_bit(NFS_LSEG_LAYOUTRETURN, &hdr->lseg->pls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) static int ff_layout_read_prepare_common(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) rpc_exit(task, -EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) ff_layout_read_record_layoutstats_start(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) * Call ops for the async read/write cases
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) * In the case of dense layouts, the offset needs to be reset to its
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) * original value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) static void ff_layout_read_prepare_v3(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) if (ff_layout_read_prepare_common(task, hdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) static void ff_layout_read_prepare_v4(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) if (nfs4_setup_sequence(hdr->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) &hdr->args.seq_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) &hdr->res.seq_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) task))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) ff_layout_read_prepare_common(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) static void ff_layout_read_call_done(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) task->tk_status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) nfs4_sequence_done(task, &hdr->res.seq_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) /* Note this may cause RPC to be resent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) hdr->mds_ops->rpc_call_done(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) static void ff_layout_read_count_stats(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) ff_layout_read_record_layoutstats_done(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) rpc_count_iostats_metrics(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) &NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_READ]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) static void ff_layout_read_release(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) ff_layout_read_record_layoutstats_done(&hdr->task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) if (test_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) ff_layout_resend_pnfs_read(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) else if (test_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) ff_layout_reset_read(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) pnfs_generic_rw_release(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) static int ff_layout_write_done_cb(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) loff_t end_offs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) if (task->tk_status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) ff_layout_io_track_ds_error(hdr->lseg, hdr->pgio_mirror_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) &hdr->res.op_status, OP_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) trace_ff_layout_write_error(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) err = ff_layout_async_handle_error(task, hdr->args.context->state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) hdr->ds_clp, hdr->lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) hdr->pgio_mirror_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) trace_nfs4_pnfs_write(hdr, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) clear_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) clear_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) switch (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) case -NFS4ERR_RESET_TO_PNFS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) set_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) return task->tk_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) case -NFS4ERR_RESET_TO_MDS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) set_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) return task->tk_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) case -EAGAIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) if (hdr->res.verf->committed == NFS_FILE_SYNC ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) hdr->res.verf->committed == NFS_DATA_SYNC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) end_offs = hdr->mds_offset + (loff_t)hdr->res.count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) /* Note: if the write is unstable, don't set end_offs until commit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) ff_layout_set_layoutcommit(hdr->inode, hdr->lseg, end_offs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) /* zero out fattr since we don't care DS attr at all */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) hdr->fattr.valid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) if (task->tk_status >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) nfs_writeback_update_inode(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) static int ff_layout_commit_done_cb(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) struct nfs_commit_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) if (task->tk_status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) ff_layout_io_track_ds_error(data->lseg, data->ds_commit_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) data->args.offset, data->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) &data->res.op_status, OP_COMMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) task->tk_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) trace_ff_layout_commit_error(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) err = ff_layout_async_handle_error(task, NULL, data->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) data->lseg, data->ds_commit_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) trace_nfs4_pnfs_commit_ds(data, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) switch (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) case -NFS4ERR_RESET_TO_PNFS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) pnfs_generic_prepare_to_resend_writes(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) case -NFS4ERR_RESET_TO_MDS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) pnfs_generic_prepare_to_resend_writes(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) case -EAGAIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) rpc_restart_call_prepare(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) ff_layout_set_layoutcommit(data->inode, data->lseg, data->lwb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) static void ff_layout_write_record_layoutstats_start(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) if (test_and_set_bit(NFS_IOHDR_STAT, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) nfs4_ff_layout_stat_io_start_write(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) task->tk_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) static void ff_layout_write_record_layoutstats_done(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) if (!test_and_clear_bit(NFS_IOHDR_STAT, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) nfs4_ff_layout_stat_io_end_write(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) hdr->args.count, hdr->res.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) hdr->res.verf->committed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) set_bit(NFS_LSEG_LAYOUTRETURN, &hdr->lseg->pls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) static int ff_layout_write_prepare_common(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) rpc_exit(task, -EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) ff_layout_write_record_layoutstats_start(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) static void ff_layout_write_prepare_v3(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) if (ff_layout_write_prepare_common(task, hdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) static void ff_layout_write_prepare_v4(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) if (nfs4_setup_sequence(hdr->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) &hdr->args.seq_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) &hdr->res.seq_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) task))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) ff_layout_write_prepare_common(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) static void ff_layout_write_call_done(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) task->tk_status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) nfs4_sequence_done(task, &hdr->res.seq_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) /* Note this may cause RPC to be resent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) hdr->mds_ops->rpc_call_done(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) static void ff_layout_write_count_stats(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) ff_layout_write_record_layoutstats_done(task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) rpc_count_iostats_metrics(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) &NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_WRITE]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) static void ff_layout_write_release(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) struct nfs_pgio_header *hdr = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) ff_layout_write_record_layoutstats_done(&hdr->task, hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) if (test_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) ff_layout_send_layouterror(hdr->lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) ff_layout_reset_write(hdr, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) } else if (test_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) ff_layout_reset_write(hdr, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) pnfs_generic_rw_release(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) static void ff_layout_commit_record_layoutstats_start(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) struct nfs_commit_data *cdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) if (test_and_set_bit(NFS_IOHDR_STAT, &cdata->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) nfs4_ff_layout_stat_io_start_write(cdata->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) 0, task->tk_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) static void ff_layout_commit_record_layoutstats_done(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) struct nfs_commit_data *cdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) struct nfs_page *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) __u64 count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) if (!test_and_clear_bit(NFS_IOHDR_STAT, &cdata->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) if (task->tk_status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) list_for_each_entry(req, &cdata->pages, wb_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) count += req->wb_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) nfs4_ff_layout_stat_io_end_write(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) count, count, NFS_FILE_SYNC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) set_bit(NFS_LSEG_LAYOUTRETURN, &cdata->lseg->pls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) static void ff_layout_commit_prepare_common(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) struct nfs_commit_data *cdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) ff_layout_commit_record_layoutstats_start(task, cdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) static void ff_layout_commit_prepare_v3(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) ff_layout_commit_prepare_common(task, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) static void ff_layout_commit_prepare_v4(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) struct nfs_commit_data *wdata = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) if (nfs4_setup_sequence(wdata->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) &wdata->args.seq_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) &wdata->res.seq_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) task))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) ff_layout_commit_prepare_common(task, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) static void ff_layout_commit_done(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) pnfs_generic_write_commit_done(task, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) static void ff_layout_commit_count_stats(struct rpc_task *task, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) struct nfs_commit_data *cdata = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) ff_layout_commit_record_layoutstats_done(task, cdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) rpc_count_iostats_metrics(task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) &NFS_CLIENT(cdata->inode)->cl_metrics[NFSPROC4_CLNT_COMMIT]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) static void ff_layout_commit_release(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) struct nfs_commit_data *cdata = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) ff_layout_commit_record_layoutstats_done(&cdata->task, cdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) pnfs_generic_commit_release(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) static const struct rpc_call_ops ff_layout_read_call_ops_v3 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) .rpc_call_prepare = ff_layout_read_prepare_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) .rpc_call_done = ff_layout_read_call_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) .rpc_count_stats = ff_layout_read_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) .rpc_release = ff_layout_read_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) static const struct rpc_call_ops ff_layout_read_call_ops_v4 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) .rpc_call_prepare = ff_layout_read_prepare_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) .rpc_call_done = ff_layout_read_call_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) .rpc_count_stats = ff_layout_read_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) .rpc_release = ff_layout_read_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) static const struct rpc_call_ops ff_layout_write_call_ops_v3 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) .rpc_call_prepare = ff_layout_write_prepare_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) .rpc_call_done = ff_layout_write_call_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) .rpc_count_stats = ff_layout_write_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) .rpc_release = ff_layout_write_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) static const struct rpc_call_ops ff_layout_write_call_ops_v4 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) .rpc_call_prepare = ff_layout_write_prepare_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) .rpc_call_done = ff_layout_write_call_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) .rpc_count_stats = ff_layout_write_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) .rpc_release = ff_layout_write_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) static const struct rpc_call_ops ff_layout_commit_call_ops_v3 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) .rpc_call_prepare = ff_layout_commit_prepare_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) .rpc_call_done = ff_layout_commit_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) .rpc_count_stats = ff_layout_commit_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) .rpc_release = ff_layout_commit_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) static const struct rpc_call_ops ff_layout_commit_call_ops_v4 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) .rpc_call_prepare = ff_layout_commit_prepare_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) .rpc_call_done = ff_layout_commit_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) .rpc_count_stats = ff_layout_commit_count_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) .rpc_release = ff_layout_commit_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) static enum pnfs_try_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) struct pnfs_layout_segment *lseg = hdr->lseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) struct rpc_clnt *ds_clnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) const struct cred *ds_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) loff_t offset = hdr->args.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) u32 idx = hdr->pgio_mirror_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) int vers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) struct nfs_fh *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) dprintk("--> %s ino %lu pgbase %u req %zu@%llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) __func__, hdr->inode->i_ino,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) hdr->args.pgbase, (size_t)hdr->args.count, offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) mirror = FF_LAYOUT_COMP(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) if (!ds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) hdr->inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) if (IS_ERR(ds_clnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, hdr->cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) if (!ds_cred)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) vers = nfs4_ff_layout_ds_version(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) dprintk("%s USE DS: %s cl_count %d vers %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) ds->ds_remotestr, refcount_read(&ds->ds_clp->cl_count), vers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) hdr->pgio_done_cb = ff_layout_read_done_cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) refcount_inc(&ds->ds_clp->cl_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) hdr->ds_clp = ds->ds_clp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) fh = nfs4_ff_layout_select_ds_fh(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) if (fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) hdr->args.fh = fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) * Note that if we ever decide to split across DSes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) * then we may need to handle dense-like offsets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) hdr->args.offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) hdr->mds_offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) /* Perform an asynchronous read to ds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) vers == 3 ? &ff_layout_read_call_ops_v3 :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) &ff_layout_read_call_ops_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) 0, RPC_TASK_SOFTCONN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) put_cred(ds_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) return PNFS_ATTEMPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) out_failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) if (ff_layout_avoid_mds_available_ds(lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) return PNFS_TRY_AGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) trace_pnfs_mds_fallback_read_pagelist(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) IOMODE_READ, NFS_I(hdr->inode)->layout, lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) return PNFS_NOT_ATTEMPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) /* Perform async writes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) static enum pnfs_try_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) struct pnfs_layout_segment *lseg = hdr->lseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) struct rpc_clnt *ds_clnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) const struct cred *ds_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) loff_t offset = hdr->args.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) int vers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) struct nfs_fh *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) u32 idx = hdr->pgio_mirror_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) mirror = FF_LAYOUT_COMP(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) if (!ds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) hdr->inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) if (IS_ERR(ds_clnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, hdr->cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) if (!ds_cred)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) goto out_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) vers = nfs4_ff_layout_ds_version(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) dprintk("%s ino %lu sync %d req %zu@%llu DS: %s cl_count %d vers %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) __func__, hdr->inode->i_ino, sync, (size_t) hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) offset, ds->ds_remotestr, refcount_read(&ds->ds_clp->cl_count),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) vers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) hdr->pgio_done_cb = ff_layout_write_done_cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) refcount_inc(&ds->ds_clp->cl_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) hdr->ds_clp = ds->ds_clp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) hdr->ds_commit_idx = idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) fh = nfs4_ff_layout_select_ds_fh(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) if (fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) hdr->args.fh = fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) * Note that if we ever decide to split across DSes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) * then we may need to handle dense-like offsets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) hdr->args.offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) /* Perform an asynchronous write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) vers == 3 ? &ff_layout_write_call_ops_v3 :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) &ff_layout_write_call_ops_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) sync, RPC_TASK_SOFTCONN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) put_cred(ds_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) return PNFS_ATTEMPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) out_failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) if (ff_layout_avoid_mds_available_ds(lseg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) return PNFS_TRY_AGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) trace_pnfs_mds_fallback_write_pagelist(hdr->inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) hdr->args.offset, hdr->args.count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) IOMODE_RW, NFS_I(hdr->inode)->layout, lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) return PNFS_NOT_ATTEMPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) static struct nfs_fh *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) select_ds_fh_from_commit(struct pnfs_layout_segment *lseg, u32 i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) struct nfs4_ff_layout_segment *flseg = FF_LAYOUT_LSEG(lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) /* FIXME: Assume that there is only one NFS version available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) * for the DS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) return &flseg->mirror_array[i]->fh_versions[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) struct pnfs_layout_segment *lseg = data->lseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) struct nfs4_pnfs_ds *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) struct rpc_clnt *ds_clnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) const struct cred *ds_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) u32 idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) int vers, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) struct nfs_fh *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) if (!lseg || !(pnfs_is_valid_lseg(lseg) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) mirror = FF_LAYOUT_COMP(lseg, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) if (!ds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) data->inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) if (IS_ERR(ds_clnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, data->cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) if (!ds_cred)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) vers = nfs4_ff_layout_ds_version(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) dprintk("%s ino %lu, how %d cl_count %d vers %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) data->inode->i_ino, how, refcount_read(&ds->ds_clp->cl_count),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) vers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) data->commit_done_cb = ff_layout_commit_done_cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) data->cred = ds_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) refcount_inc(&ds->ds_clp->cl_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) data->ds_clp = ds->ds_clp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) if (fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) data->args.fh = fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) ret = nfs_initiate_commit(ds_clnt, data, ds->ds_clp->rpc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) vers == 3 ? &ff_layout_commit_call_ops_v3 :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) &ff_layout_commit_call_ops_v4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) how, RPC_TASK_SOFTCONN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) put_cred(ds_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) out_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) pnfs_generic_prepare_to_resend_writes(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) pnfs_generic_commit_release(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) ff_layout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) int how, struct nfs_commit_info *cinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) return pnfs_generic_commit_pagelist(inode, mds_pages, how, cinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) ff_layout_initiate_commit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) static struct pnfs_ds_commit_info *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) ff_layout_get_ds_info(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) struct pnfs_layout_hdr *layout = NFS_I(inode)->layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) if (layout == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) return &FF_LAYOUT_FROM_HDR(layout)->commit_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) ff_layout_setup_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) struct pnfs_layout_segment *lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) struct nfs4_ff_layout_segment *flseg = FF_LAYOUT_LSEG(lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) struct inode *inode = lseg->pls_layout->plh_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) struct pnfs_commit_array *array, *new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) new = pnfs_alloc_commit_array(flseg->mirror_array_cnt, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) if (new) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) spin_lock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) array = pnfs_add_commit_array(fl_cinfo, new, lseg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) if (array != new)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) pnfs_free_commit_array(new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) ff_layout_release_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) spin_lock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) pnfs_generic_ds_cinfo_destroy(fl_cinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) spin_unlock(&inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) ff_layout_free_deviceid_node(struct nfs4_deviceid_node *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) nfs4_ff_layout_free_deviceid(container_of(d, struct nfs4_ff_layout_ds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) id_node));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) static int ff_layout_encode_ioerr(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) const struct nfs4_layoutreturn_args *args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) const struct nfs4_flexfile_layoutreturn_args *ff_args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) __be32 *start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) start = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) if (unlikely(!start))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) return -E2BIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) *start = cpu_to_be32(ff_args->num_errors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) /* This assume we always return _ALL_ layouts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) return ff_layout_encode_ds_ioerr(xdr, &ff_args->errors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) ff_layout_encode_ff_iostat_head(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) const nfs4_stateid *stateid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) const struct nfs42_layoutstat_devinfo *devinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) p = xdr_reserve_space(xdr, 8 + 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) p = xdr_encode_hyper(p, devinfo->offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) p = xdr_encode_hyper(p, devinfo->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) encode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) p = xdr_reserve_space(xdr, 4*8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) p = xdr_encode_hyper(p, devinfo->read_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) p = xdr_encode_hyper(p, devinfo->read_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) p = xdr_encode_hyper(p, devinfo->write_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) p = xdr_encode_hyper(p, devinfo->write_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) encode_opaque_fixed(xdr, devinfo->dev_id.data, NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) ff_layout_encode_ff_iostat(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) const nfs4_stateid *stateid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) const struct nfs42_layoutstat_devinfo *devinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) ff_layout_encode_ff_iostat_head(xdr, stateid, devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) ff_layout_encode_ff_layoutupdate(xdr, devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) devinfo->ld_private.data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) /* report nothing for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) static void ff_layout_encode_iostats_array(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) const struct nfs4_layoutreturn_args *args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) struct nfs4_flexfile_layoutreturn_args *ff_args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) p = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) *p = cpu_to_be32(ff_args->num_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) for (i = 0; i < ff_args->num_dev; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) ff_layout_encode_ff_iostat(xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) &args->layout->plh_stateid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) &ff_args->devinfo[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) ff_layout_free_iostats_array(struct nfs42_layoutstat_devinfo *devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) unsigned int num_entries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) for (i = 0; i < num_entries; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) if (!devinfo[i].ld_private.ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) if (!devinfo[i].ld_private.ops->free)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) devinfo[i].ld_private.ops->free(&devinfo[i].ld_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) static struct nfs4_deviceid_node *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) ff_layout_alloc_deviceid_node(struct nfs_server *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) struct pnfs_device *pdev, gfp_t gfp_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) struct nfs4_ff_layout_ds *dsaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) dsaddr = nfs4_ff_alloc_deviceid_node(server, pdev, gfp_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) if (!dsaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) return &dsaddr->id_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) ff_layout_encode_layoutreturn(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) const void *voidargs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) const struct nfs4_xdr_opaque_data *ff_opaque)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) const struct nfs4_layoutreturn_args *args = voidargs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) struct nfs4_flexfile_layoutreturn_args *ff_args = ff_opaque->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) struct xdr_buf tmp_buf = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) .head = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) [0] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) .iov_base = page_address(ff_args->pages[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) .buflen = PAGE_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) struct xdr_stream tmp_xdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) __be32 *start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) dprintk("%s: Begin\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) xdr_init_encode(&tmp_xdr, &tmp_buf, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) ff_layout_encode_ioerr(&tmp_xdr, args, ff_args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) ff_layout_encode_iostats_array(&tmp_xdr, args, ff_args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) start = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) *start = cpu_to_be32(tmp_buf.len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) xdr_write_pages(xdr, ff_args->pages, 0, tmp_buf.len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) dprintk("%s: Return\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) ff_layout_free_layoutreturn(struct nfs4_xdr_opaque_data *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) struct nfs4_flexfile_layoutreturn_args *ff_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) if (!args->data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) ff_args = args->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) args->data = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) ff_layout_free_ds_ioerr(&ff_args->errors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) ff_layout_free_iostats_array(ff_args->devinfo, ff_args->num_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) put_page(ff_args->pages[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) kfree(ff_args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) static const struct nfs4_xdr_opaque_ops layoutreturn_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) .encode = ff_layout_encode_layoutreturn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) .free = ff_layout_free_layoutreturn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) ff_layout_prepare_layoutreturn(struct nfs4_layoutreturn_args *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) struct nfs4_flexfile_layoutreturn_args *ff_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) struct nfs4_flexfile_layout *ff_layout = FF_LAYOUT_FROM_HDR(args->layout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) ff_args = kmalloc(sizeof(*ff_args), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) if (!ff_args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163) goto out_nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) ff_args->pages[0] = alloc_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) if (!ff_args->pages[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) goto out_nomem_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) INIT_LIST_HEAD(&ff_args->errors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) ff_args->num_errors = ff_layout_fetch_ds_ioerr(args->layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) &args->range, &ff_args->errors,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) FF_LAYOUTRETURN_MAXERR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) spin_lock(&args->inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) ff_args->num_dev = ff_layout_mirror_prepare_stats(&ff_layout->generic_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) &ff_args->devinfo[0], ARRAY_SIZE(ff_args->devinfo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) spin_unlock(&args->inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) args->ld_private->ops = &layoutreturn_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) args->ld_private->data = ff_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) out_nomem_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) kfree(ff_args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) out_nomem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) ff_layout_send_layouterror(struct pnfs_layout_segment *lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) struct pnfs_layout_hdr *lo = lseg->pls_layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) struct nfs42_layout_error *errors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) LIST_HEAD(head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) if (!nfs_server_capable(lo->plh_inode, NFS_CAP_LAYOUTERROR))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) ff_layout_fetch_ds_ioerr(lo, &lseg->pls_range, &head, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) if (list_empty(&head))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) errors = kmalloc_array(NFS42_LAYOUTERROR_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) sizeof(*errors), GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) if (errors != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) const struct nfs4_ff_layout_ds_err *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) size_t n = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) list_for_each_entry(pos, &head, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) errors[n].offset = pos->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) errors[n].length = pos->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) nfs4_stateid_copy(&errors[n].stateid, &pos->stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) errors[n].errors[0].dev_id = pos->deviceid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) errors[n].errors[0].status = pos->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) errors[n].errors[0].opnum = pos->opnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) n++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) if (!list_is_last(&pos->list, &head) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216) n < NFS42_LAYOUTERROR_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) if (nfs42_proc_layouterror(lseg, errors, n) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) n = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) kfree(errors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) ff_layout_free_ds_ioerr(&head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) ff_layout_send_layouterror(struct pnfs_layout_segment *lseg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) ff_layout_ntop4(const struct sockaddr *sap, char *buf, const size_t buflen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) return snprintf(buf, buflen, "%pI4", &sin->sin_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) static size_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) ff_layout_ntop6_noscopeid(const struct sockaddr *sap, char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) const int buflen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) const struct in6_addr *addr = &sin6->sin6_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) * RFC 4291, Section 2.2.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251) * Shorthanded ANY address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) if (ipv6_addr_any(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) return snprintf(buf, buflen, "::");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257) * RFC 4291, Section 2.2.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) * Shorthanded loopback address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) if (ipv6_addr_loopback(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) return snprintf(buf, buflen, "::1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265) * RFC 4291, Section 2.2.3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) * Special presentation address format for mapped v4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) * addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) if (ipv6_addr_v4mapped(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) return snprintf(buf, buflen, "::ffff:%pI4",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) &addr->s6_addr32[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) * RFC 4291, Section 2.2.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) return snprintf(buf, buflen, "%pI6c", addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) /* Derived from rpc_sockaddr2uaddr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) ff_layout_encode_netaddr(struct xdr_stream *xdr, struct nfs4_pnfs_ds_addr *da)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) struct sockaddr *sap = (struct sockaddr *)&da->da_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) char portbuf[RPCBIND_MAXUADDRPLEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) char addrbuf[RPCBIND_MAXUADDRLEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) char *netid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) unsigned short port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) int len, netid_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) switch (sap->sa_family) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) case AF_INET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) if (ff_layout_ntop4(sap, addrbuf, sizeof(addrbuf)) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) port = ntohs(((struct sockaddr_in *)sap)->sin_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) netid = "tcp";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) netid_len = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) case AF_INET6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) if (ff_layout_ntop6_noscopeid(sap, addrbuf, sizeof(addrbuf)) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304) netid = "tcp6";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) netid_len = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) /* we only support tcp and tcp6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) WARN_ON_ONCE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) snprintf(portbuf, sizeof(portbuf), ".%u.%u", port >> 8, port & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) len = strlcat(addrbuf, portbuf, sizeof(addrbuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) p = xdr_reserve_space(xdr, 4 + netid_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) xdr_encode_opaque(p, netid, netid_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) p = xdr_reserve_space(xdr, 4 + len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) xdr_encode_opaque(p, addrbuf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) ff_layout_encode_nfstime(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) ktime_t t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) struct timespec64 ts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) p = xdr_reserve_space(xdr, 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) ts = ktime_to_timespec64(t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) p = xdr_encode_hyper(p, ts.tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333) *p++ = cpu_to_be32(ts.tv_nsec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) ff_layout_encode_io_latency(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) struct nfs4_ff_io_stat *stat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) p = xdr_reserve_space(xdr, 5 * 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) p = xdr_encode_hyper(p, stat->ops_requested);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344) p = xdr_encode_hyper(p, stat->bytes_requested);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) p = xdr_encode_hyper(p, stat->ops_completed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) p = xdr_encode_hyper(p, stat->bytes_completed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) p = xdr_encode_hyper(p, stat->bytes_not_delivered);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) ff_layout_encode_nfstime(xdr, stat->total_busy_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) ff_layout_encode_nfstime(xdr, stat->aggregate_completion_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) ff_layout_encode_ff_layoutupdate(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) const struct nfs42_layoutstat_devinfo *devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) struct nfs4_ff_layout_mirror *mirror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) struct nfs4_pnfs_ds_addr *da;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) struct nfs4_pnfs_ds *ds = mirror->mirror_ds->ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) struct nfs_fh *fh = &mirror->fh_versions[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) da = list_first_entry(&ds->ds_addrs, struct nfs4_pnfs_ds_addr, da_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) dprintk("%s: DS %s: encoding address %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) __func__, ds->ds_remotestr, da->da_remotestr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) /* netaddr4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) ff_layout_encode_netaddr(xdr, da);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) /* nfs_fh4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) p = xdr_reserve_space(xdr, 4 + fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) xdr_encode_opaque(p, fh->data, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) /* ff_io_latency4 read */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) ff_layout_encode_io_latency(xdr, &mirror->read_stat.io_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) /* ff_io_latency4 write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) ff_layout_encode_io_latency(xdr, &mirror->write_stat.io_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) /* nfstime4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) ff_layout_encode_nfstime(xdr, ktime_sub(ktime_get(), mirror->start_time));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) /* bool */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) p = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) *p = cpu_to_be32(false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) ff_layout_encode_layoutstats(struct xdr_stream *xdr, const void *args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) const struct nfs4_xdr_opaque_data *opaque)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) struct nfs42_layoutstat_devinfo *devinfo = container_of(opaque,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) struct nfs42_layoutstat_devinfo, ld_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) __be32 *start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) /* layoutupdate length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) start = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) ff_layout_encode_ff_layoutupdate(xdr, devinfo, opaque->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) *start = cpu_to_be32((xdr->p - start - 1) * 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) ff_layout_free_layoutstats(struct nfs4_xdr_opaque_data *opaque)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) struct nfs4_ff_layout_mirror *mirror = opaque->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) ff_layout_put_mirror(mirror);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) static const struct nfs4_xdr_opaque_ops layoutstat_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) .encode = ff_layout_encode_layoutstats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) .free = ff_layout_free_layoutstats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) ff_layout_mirror_prepare_stats(struct pnfs_layout_hdr *lo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) struct nfs42_layoutstat_devinfo *devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) int dev_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416) struct nfs4_flexfile_layout *ff_layout = FF_LAYOUT_FROM_HDR(lo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) struct nfs4_ff_layout_mirror *mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) struct nfs4_deviceid_node *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) list_for_each_entry(mirror, &ff_layout->mirrors, mirrors) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422) if (i >= dev_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) if (IS_ERR_OR_NULL(mirror->mirror_ds))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) if (!test_and_clear_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428) /* mirror refcount put in cleanup_layoutstats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) if (!refcount_inc_not_zero(&mirror->ref))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) dev = &mirror->mirror_ds->id_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) memcpy(&devinfo->dev_id, &dev->deviceid, NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) devinfo->offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) devinfo->length = NFS4_MAX_UINT64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) spin_lock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) devinfo->read_count = mirror->read_stat.io_stat.ops_completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) devinfo->read_bytes = mirror->read_stat.io_stat.bytes_completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) devinfo->write_count = mirror->write_stat.io_stat.ops_completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) devinfo->write_bytes = mirror->write_stat.io_stat.bytes_completed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) spin_unlock(&mirror->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) devinfo->layout_type = LAYOUT_FLEX_FILES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) devinfo->ld_private.ops = &layoutstat_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) devinfo->ld_private.data = mirror;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) devinfo++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) ff_layout_prepare_layoutstats(struct nfs42_layoutstat_args *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) struct nfs4_flexfile_layout *ff_layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) const int dev_count = PNFS_LAYOUTSTATS_MAXDEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) /* For now, send at most PNFS_LAYOUTSTATS_MAXDEV statistics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) args->devinfo = kmalloc_array(dev_count, sizeof(*args->devinfo), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) if (!args->devinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) spin_lock(&args->inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) ff_layout = FF_LAYOUT_FROM_HDR(NFS_I(args->inode)->layout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) args->num_dev = ff_layout_mirror_prepare_stats(&ff_layout->generic_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) &args->devinfo[0], dev_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) spin_unlock(&args->inode->i_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) if (!args->num_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) kfree(args->devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469) args->devinfo = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) ff_layout_set_layoutdriver(struct nfs_server *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) const struct nfs_fh *dummy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) #if IS_ENABLED(CONFIG_NFS_V4_2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) server->caps |= NFS_CAP_LAYOUTSTATS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) static const struct pnfs_commit_ops ff_layout_commit_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) .setup_ds_info = ff_layout_setup_ds_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) .release_ds_info = ff_layout_release_ds_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) .mark_request_commit = pnfs_layout_mark_request_commit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) .clear_request_commit = pnfs_generic_clear_request_commit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) .scan_commit_lists = pnfs_generic_scan_commit_lists,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) .recover_commit_reqs = pnfs_generic_recover_commit_reqs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) .commit_pagelist = ff_layout_commit_pagelist,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) static struct pnfs_layoutdriver_type flexfilelayout_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497) .id = LAYOUT_FLEX_FILES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) .name = "LAYOUT_FLEX_FILES",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) .flags = PNFS_LAYOUTGET_ON_OPEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) .max_layoutget_response = 4096, /* 1 page or so... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) .set_layoutdriver = ff_layout_set_layoutdriver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) .alloc_layout_hdr = ff_layout_alloc_layout_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) .free_layout_hdr = ff_layout_free_layout_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) .alloc_lseg = ff_layout_alloc_lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) .free_lseg = ff_layout_free_lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507) .add_lseg = ff_layout_add_lseg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508) .pg_read_ops = &ff_layout_pg_read_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) .pg_write_ops = &ff_layout_pg_write_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) .get_ds_info = ff_layout_get_ds_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) .free_deviceid_node = ff_layout_free_deviceid_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) .read_pagelist = ff_layout_read_pagelist,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) .write_pagelist = ff_layout_write_pagelist,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) .alloc_deviceid_node = ff_layout_alloc_deviceid_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) .prepare_layoutreturn = ff_layout_prepare_layoutreturn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) .sync = pnfs_nfs_generic_sync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) .prepare_layoutstats = ff_layout_prepare_layoutstats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520) static int __init nfs4flexfilelayout_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) printk(KERN_INFO "%s: NFSv4 Flexfile Layout Driver Registering...\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) return pnfs_register_layoutdriver(&flexfilelayout_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) static void __exit nfs4flexfilelayout_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) printk(KERN_INFO "%s: NFSv4 Flexfile Layout Driver Unregistering...\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531) pnfs_unregister_layoutdriver(&flexfilelayout_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534) MODULE_ALIAS("nfs-layouttype4-4");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) MODULE_DESCRIPTION("The NFSv4 flexfile layout driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) module_init(nfs4flexfilelayout_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) module_exit(nfs4flexfilelayout_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) module_param(io_maxretrans, ushort, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) MODULE_PARM_DESC(io_maxretrans, "The number of times the NFSv4.1 client "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) "retries an I/O request before returning an error. ");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags