^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/fs/nfs/file.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1992 Rick Sladkey
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/falloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/nfs_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/nfs_ssc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "delegation.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "iostat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "fscache.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "pnfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "nfstrace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "nfs42.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define NFSDBG_FACILITY NFSDBG_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) nfs4_file_open(struct inode *inode, struct file *filp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct nfs_open_context *ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct dentry *dentry = file_dentry(filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct dentry *parent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct inode *dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) unsigned openflags = filp->f_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct iattr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * If no cached dentry exists or if it's negative, NFSv4 handled the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * opens in ->lookup() or ->create().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * We only get this far for a cached positive dentry. We skipped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * revalidation, so handle it here by dropping the dentry and returning
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * -EOPENSTALE. The VFS will retry the lookup/create/open.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) dprintk("NFS: open file(%pd2)\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) err = nfs_check_flags(openflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) if ((openflags & O_ACCMODE) == 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return nfs_open(inode, filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* We can't create new files here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) openflags &= ~(O_CREAT|O_EXCL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) parent = dget_parent(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) dir = d_inode(parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) ctx = alloc_nfs_open_context(file_dentry(filp), filp->f_mode, filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) err = PTR_ERR(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (IS_ERR(ctx))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) attr.ia_valid = ATTR_OPEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (openflags & O_TRUNC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) attr.ia_valid |= ATTR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) attr.ia_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) filemap_write_and_wait(inode->i_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (IS_ERR(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) err = PTR_ERR(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) switch (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) goto out_put_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) case -ESTALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) case -EISDIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) case -ENOTDIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) case -ELOOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) goto out_drop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (inode != d_inode(dentry))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) goto out_drop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) nfs_file_set_open_context(filp, ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) nfs_fscache_open_file(inode, filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) out_put_ctx:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) put_nfs_open_context(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) dput(parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) out_drop:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) d_drop(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) err = -EOPENSTALE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) goto out_put_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * Flush all dirty pages, and check for write errors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) nfs4_file_flush(struct file *file, fl_owner_t id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) errseq_t since;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) dprintk("NFS: flush(%pD2)\n", file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) nfs_inc_stats(inode, NFSIOS_VFSFLUSH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if ((file->f_mode & FMODE_WRITE) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * If we're holding a write delegation, then check if we're required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * to flush the i/o on close. If not, then just start the i/o now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (!nfs4_delegation_flush_on_close(inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return filemap_fdatawrite(file->f_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* Flush writes to the server and return any errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) since = filemap_sample_wb_err(file->f_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) nfs_wb_all(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return filemap_check_wb_err(file->f_mapping, since);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct file *file_out, loff_t pos_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) size_t count, unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct nfs42_copy_notify_res *cn_resp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct nl4_server *nss = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) nfs4_stateid *cnrs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) ssize_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) bool sync = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /* Only offload copy if superblock is the same */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (file_in->f_op != &nfs4_file_operations)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return -EXDEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (!nfs_server_capable(file_inode(file_out), NFS_CAP_COPY) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) !nfs_server_capable(file_inode(file_in), NFS_CAP_COPY))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (file_inode(file_in) == file_inode(file_out))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* if the copy size if smaller than 2 RPC payloads, make it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * synchronous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (count <= 2 * NFS_SERVER(file_inode(file_in))->rsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) sync = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) retry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (!nfs42_files_from_same_server(file_in, file_out)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /* for inter copy, if copy size if smaller than 12 RPC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * payloads, fallback to traditional copy. There are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * 14 RPCs during an NFSv4.x mount between source/dest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * servers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (sync ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) count <= 14 * NFS_SERVER(file_inode(file_in))->rsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) cn_resp = kzalloc(sizeof(struct nfs42_copy_notify_res),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (unlikely(cn_resp == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ret = nfs42_proc_copy_notify(file_in, file_out, cn_resp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) ret = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) nss = &cn_resp->cnr_src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) cnrs = &cn_resp->cnr_stateid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) ret = nfs42_proc_copy(file_in, pos_in, file_out, pos_out, count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) nss, cnrs, sync);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if (!nfs42_files_from_same_server(file_in, file_out))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) kfree(cn_resp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (ret == -EAGAIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) goto retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct file *file_out, loff_t pos_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) size_t count, unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) ssize_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) ret = __nfs4_copy_file_range(file_in, pos_in, file_out, pos_out, count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (ret == -EOPNOTSUPP || ret == -EXDEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) ret = generic_copy_file_range(file_in, pos_in, file_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) pos_out, count, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return ret;
^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 loff_t nfs4_file_llseek(struct file *filep, loff_t offset, int whence)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) loff_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) switch (whence) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) case SEEK_HOLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) case SEEK_DATA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ret = nfs42_proc_llseek(filep, offset, whence);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (ret != -EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return nfs_file_llseek(filep, offset, whence);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static long nfs42_fallocate(struct file *filep, int mode, loff_t offset, loff_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct inode *inode = file_inode(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) long ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (!S_ISREG(inode->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if ((mode != 0) && (mode != (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) ret = inode_newsize_ok(inode, offset + len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (mode & FALLOC_FL_PUNCH_HOLE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return nfs42_proc_deallocate(filep, offset, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) return nfs42_proc_allocate(filep, offset, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static loff_t nfs42_remap_file_range(struct file *src_file, loff_t src_off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct file *dst_file, loff_t dst_off, loff_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned int remap_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct inode *dst_inode = file_inode(dst_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) struct nfs_server *server = NFS_SERVER(dst_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct inode *src_inode = file_inode(src_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) unsigned int bs = server->clone_blksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) bool same_inode = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /* NFS does not support deduplication. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (remap_flags & REMAP_FILE_DEDUP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (remap_flags & ~REMAP_FILE_ADVISORY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (IS_SWAPFILE(dst_inode) || IS_SWAPFILE(src_inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return -ETXTBSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /* check alignment w.r.t. clone_blksize */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (bs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (!IS_ALIGNED(src_off, bs) || !IS_ALIGNED(dst_off, bs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) if (!IS_ALIGNED(count, bs) && i_size_read(src_inode) != (src_off + count))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (src_inode == dst_inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) same_inode = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) /* XXX: do we lock at all? what if server needs CB_RECALL_LAYOUT? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (same_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) inode_lock(src_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) } else if (dst_inode < src_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) inode_lock_nested(dst_inode, I_MUTEX_PARENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) inode_lock_nested(src_inode, I_MUTEX_CHILD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) inode_lock_nested(src_inode, I_MUTEX_PARENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) inode_lock_nested(dst_inode, I_MUTEX_CHILD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) /* flush all pending writes on both src and dst so that server
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * has the latest data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) ret = nfs_sync_inode(src_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ret = nfs_sync_inode(dst_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) ret = nfs42_proc_clone(src_file, dst_file, src_off, dst_off, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) /* truncate inode page cache of the dst range so that future reads can fetch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * new data from server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) truncate_inode_pages_range(&dst_inode->i_data, dst_off, dst_off + count - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) out_unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (same_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) inode_unlock(src_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) } else if (dst_inode < src_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) inode_unlock(src_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) inode_unlock(dst_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) inode_unlock(dst_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) inode_unlock(src_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return ret < 0 ? ret : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) static int read_name_gen = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #define SSC_READ_NAME_BODY "ssc_read_%d"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static struct file *__nfs42_ssc_open(struct vfsmount *ss_mnt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct nfs_fh *src_fh, nfs4_stateid *stateid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) struct nfs_fattr fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct file *filep, *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct nfs_server *server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) struct inode *r_ino = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct nfs_open_context *ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct nfs4_state_owner *sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) char *read_name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) int len, status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) server = NFS_SERVER(ss_mnt->mnt_root->d_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) nfs_fattr_init(&fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) status = nfs4_proc_getattr(server, src_fh, &fattr, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) res = ERR_PTR(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) res = ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) len = strlen(SSC_READ_NAME_BODY) + 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) read_name = kzalloc(len, GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (read_name == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) snprintf(read_name, len, SSC_READ_NAME_BODY, read_name_gen++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) r_ino = nfs_fhget(ss_mnt->mnt_root->d_inode->i_sb, src_fh, &fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (IS_ERR(r_ino)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) res = ERR_CAST(r_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) goto out_free_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) filep = alloc_file_pseudo(r_ino, ss_mnt, read_name, FMODE_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) r_ino->i_fop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (IS_ERR(filep)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) res = ERR_CAST(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) goto out_free_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) filep->f_mode |= FMODE_READ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) ctx = alloc_nfs_open_context(filep->f_path.dentry, filep->f_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (IS_ERR(ctx)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) res = ERR_CAST(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) goto out_filep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) res = ERR_PTR(-EINVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) sp = nfs4_get_state_owner(server, ctx->cred, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (sp == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) goto out_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) ctx->state = nfs4_get_open_state(r_ino, sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (ctx->state == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) goto out_stateowner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) set_bit(NFS_SRV_SSC_COPY_STATE, &ctx->state->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) memcpy(&ctx->state->open_stateid.other, &stateid->other,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) NFS4_STATEID_OTHER_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) update_open_stateid(ctx->state, stateid, NULL, filep->f_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) set_bit(NFS_OPEN_STATE, &ctx->state->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) nfs_file_set_open_context(filep, ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) put_nfs_open_context(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) file_ra_state_init(&filep->f_ra, filep->f_mapping->host->i_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) res = filep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) out_free_name:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) kfree(read_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) out_stateowner:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) nfs4_put_state_owner(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) out_ctx:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) put_nfs_open_context(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) out_filep:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) fput(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) goto out_free_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) static void __nfs42_ssc_close(struct file *filep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) struct nfs_open_context *ctx = nfs_file_open_context(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) ctx->state->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) static const struct nfs4_ssc_client_ops nfs4_ssc_clnt_ops_tbl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) .sco_open = __nfs42_ssc_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) .sco_close = __nfs42_ssc_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * nfs42_ssc_register_ops - Wrapper to register NFS_V4 ops in nfs_common
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * Return values:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) void nfs42_ssc_register_ops(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) nfs42_ssc_register(&nfs4_ssc_clnt_ops_tbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * nfs42_ssc_unregister_ops - wrapper to un-register NFS_V4 ops in nfs_common
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * Return values:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) void nfs42_ssc_unregister_ops(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) nfs42_ssc_unregister(&nfs4_ssc_clnt_ops_tbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) #endif /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) const struct file_operations nfs4_file_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) .read_iter = nfs_file_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) .write_iter = nfs_file_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) .mmap = nfs_file_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) .open = nfs4_file_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) .flush = nfs4_file_flush,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) .release = nfs_file_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) .fsync = nfs_file_fsync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) .lock = nfs_lock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) .flock = nfs_flock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .splice_read = generic_file_splice_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) .splice_write = iter_file_splice_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) .check_flags = nfs_check_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .setlease = simple_nosetlease,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) .copy_file_range = nfs4_copy_file_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) .llseek = nfs4_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) .fallocate = nfs42_fallocate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) .remap_file_range = nfs42_remap_file_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) .llseek = nfs_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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