^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) #include <linux/ceph/ceph_debug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/backing-dev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/ctype.h>
^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/inet.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/in6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/fs_context.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/fs_parser.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/statfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "super.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "mds_client.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "cache.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/ceph/ceph_features.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/ceph/decode.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/ceph/mon_client.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/ceph/auth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/ceph/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static DEFINE_SPINLOCK(ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static LIST_HEAD(ceph_fsc_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * Ceph superblock operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * Handle the basics of mounting, unmounting.
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * super ops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void ceph_put_super(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct ceph_fs_client *fsc = ceph_sb_to_client(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) dout("put_super\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) ceph_mdsc_close_sessions(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct ceph_fs_client *fsc = ceph_inode_to_client(d_inode(dentry));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct ceph_mon_client *monc = &fsc->client->monc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct ceph_statfs st;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) u64 data_pool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (fsc->mdsc->mdsmap->m_num_data_pg_pools == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) data_pool = fsc->mdsc->mdsmap->m_data_pg_pools[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) data_pool = CEPH_NOPOOL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) dout("statfs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) err = ceph_monc_do_statfs(monc, data_pool, &st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* fill in kstatfs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) buf->f_type = CEPH_SUPER_MAGIC; /* ?? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * express utilization in terms of large blocks to avoid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * overflow on 32-bit machines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * NOTE: for the time being, we make bsize == frsize to humor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * not-yet-ancient versions of glibc that are broken.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * Someday, we will probably want to report a real block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * size... whatever that may mean for a network file system!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) buf->f_bsize = 1 << CEPH_BLOCK_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) buf->f_frsize = 1 << CEPH_BLOCK_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * By default use root quota for stats; fallback to overall filesystem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * usage if using 'noquotadf' mount option or if the root dir doesn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * have max_bytes quota set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (ceph_test_mount_opt(fsc, NOQUOTADF) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) !ceph_quota_update_statfs(fsc, buf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) buf->f_blocks = le64_to_cpu(st.kb) >> (CEPH_BLOCK_SHIFT-10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) buf->f_bfree = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) buf->f_bavail = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) buf->f_files = le64_to_cpu(st.num_objects);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) buf->f_ffree = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) buf->f_namelen = NAME_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* Must convert the fsid, for consistent values across arches */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) buf->f_fsid.val[0] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) mutex_lock(&monc->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) for (i = 0 ; i < sizeof(monc->monmap->fsid) / sizeof(__le32) ; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) buf->f_fsid.val[0] ^= le32_to_cpu(((__le32 *)&monc->monmap->fsid)[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) mutex_unlock(&monc->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* fold the fs_cluster_id into the upper bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) buf->f_fsid.val[1] = monc->fs_cluster_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static int ceph_sync_fs(struct super_block *sb, int wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (!wait) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) dout("sync_fs (non-blocking)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) ceph_flush_dirty_caps(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dout("sync_fs (non-blocking) done\n");
^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) dout("sync_fs (blocking)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) ceph_osdc_sync(&fsc->client->osdc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) ceph_mdsc_sync(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) dout("sync_fs (blocking) done\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * mount options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) Opt_wsize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) Opt_rsize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) Opt_rasize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) Opt_caps_wanted_delay_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) Opt_caps_wanted_delay_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) Opt_caps_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) Opt_readdir_max_entries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) Opt_readdir_max_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) Opt_congestion_kb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /* int args above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) Opt_snapdirname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) Opt_mds_namespace,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) Opt_recover_session,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) Opt_source,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* string args above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) Opt_dirstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) Opt_rbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) Opt_asyncreaddir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) Opt_dcache,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) Opt_ino32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) Opt_fscache,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) Opt_poolperm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) Opt_require_active_mds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) Opt_acl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) Opt_quotadf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) Opt_copyfrom,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) Opt_wsync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) enum ceph_recover_session_mode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) ceph_recover_session_no,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) ceph_recover_session_clean
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static const struct constant_table ceph_param_recover[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) { "no", ceph_recover_session_no },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) { "clean", ceph_recover_session_clean },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {}
^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) static const struct fs_parameter_spec ceph_mount_parameters[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) fsparam_flag_no ("acl", Opt_acl),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) fsparam_flag_no ("asyncreaddir", Opt_asyncreaddir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) fsparam_s32 ("caps_max", Opt_caps_max),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) fsparam_u32 ("caps_wanted_delay_max", Opt_caps_wanted_delay_max),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) fsparam_u32 ("caps_wanted_delay_min", Opt_caps_wanted_delay_min),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) fsparam_u32 ("write_congestion_kb", Opt_congestion_kb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) fsparam_flag_no ("copyfrom", Opt_copyfrom),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) fsparam_flag_no ("dcache", Opt_dcache),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) fsparam_flag_no ("dirstat", Opt_dirstat),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) fsparam_flag_no ("fsc", Opt_fscache), // fsc|nofsc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) fsparam_string ("fsc", Opt_fscache), // fsc=...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) fsparam_flag_no ("ino32", Opt_ino32),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) fsparam_string ("mds_namespace", Opt_mds_namespace),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) fsparam_flag_no ("poolperm", Opt_poolperm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) fsparam_flag_no ("quotadf", Opt_quotadf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) fsparam_u32 ("rasize", Opt_rasize),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) fsparam_flag_no ("rbytes", Opt_rbytes),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) fsparam_u32 ("readdir_max_bytes", Opt_readdir_max_bytes),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) fsparam_u32 ("readdir_max_entries", Opt_readdir_max_entries),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) fsparam_enum ("recover_session", Opt_recover_session, ceph_param_recover),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) fsparam_flag_no ("require_active_mds", Opt_require_active_mds),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) fsparam_u32 ("rsize", Opt_rsize),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) fsparam_string ("snapdirname", Opt_snapdirname),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) fsparam_string ("source", Opt_source),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) fsparam_u32 ("wsize", Opt_wsize),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) fsparam_flag_no ("wsync", Opt_wsync),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct ceph_parse_opts_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct ceph_options *copts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct ceph_mount_options *opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Remove adjacent slashes and then the trailing slash, unless it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * the only remaining character.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * E.g. "//dir1////dir2///" --> "/dir1/dir2", "///" --> "/".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static void canonicalize_path(char *path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) int i, j = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) for (i = 0; path[i] != '\0'; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (path[i] != '/' || j < 1 || path[j - 1] != '/')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) path[j++] = path[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (j > 1 && path[j - 1] == '/')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) j--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) path[j] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * Parse the source parameter. Distinguish the server list from the path.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * The source will look like:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * <server_spec>[,<server_spec>...]:[<path>]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * <server_spec> is <ip>[:<port>]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * <path> is optional, but if present must begin with '/'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static int ceph_parse_source(struct fs_parameter *param, struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct ceph_parse_opts_ctx *pctx = fc->fs_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct ceph_mount_options *fsopt = pctx->opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) char *dev_name = param->string, *dev_name_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) dout("%s '%s'\n", __func__, dev_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (!dev_name || !*dev_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return invalfc(fc, "Empty source");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) dev_name_end = strchr(dev_name, '/');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) if (dev_name_end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * The server_path will include the whole chars from userland
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * including the leading '/'.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) kfree(fsopt->server_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) fsopt->server_path = kstrdup(dev_name_end, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (!fsopt->server_path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) canonicalize_path(fsopt->server_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) dev_name_end = dev_name + strlen(dev_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) dev_name_end--; /* back up to ':' separator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (dev_name_end < dev_name || *dev_name_end != ':')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return invalfc(fc, "No path or : separator in source");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) dout("device name '%.*s'\n", (int)(dev_name_end - dev_name), dev_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (fsopt->server_path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) dout("server path '%s'\n", fsopt->server_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) ret = ceph_parse_mon_ips(param->string, dev_name_end - dev_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) pctx->copts, fc->log.log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) fc->source = param->string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) param->string = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static int ceph_parse_mount_param(struct fs_context *fc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct fs_parameter *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) struct ceph_parse_opts_ctx *pctx = fc->fs_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) struct ceph_mount_options *fsopt = pctx->opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct fs_parse_result result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) unsigned int mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) int token, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) ret = ceph_parse_param(param, pctx->copts, fc->log.log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (ret != -ENOPARAM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) token = fs_parse(fc, ceph_mount_parameters, param, &result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) dout("%s fs_parse '%s' token %d\n", __func__, param->key, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) if (token < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) return token;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) switch (token) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) case Opt_snapdirname:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) kfree(fsopt->snapdir_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) fsopt->snapdir_name = param->string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) param->string = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) case Opt_mds_namespace:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) kfree(fsopt->mds_namespace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) fsopt->mds_namespace = param->string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) param->string = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) case Opt_recover_session:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) mode = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (mode == ceph_recover_session_no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) fsopt->flags &= ~CEPH_MOUNT_OPT_CLEANRECOVER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) else if (mode == ceph_recover_session_clean)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) fsopt->flags |= CEPH_MOUNT_OPT_CLEANRECOVER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) case Opt_source:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (fc->source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return invalfc(fc, "Multiple sources specified");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return ceph_parse_source(param, fc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) case Opt_wsize:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) if (result.uint_32 < PAGE_SIZE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) result.uint_32 > CEPH_MAX_WRITE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) fsopt->wsize = ALIGN(result.uint_32, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) case Opt_rsize:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (result.uint_32 < PAGE_SIZE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) result.uint_32 > CEPH_MAX_READ_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) fsopt->rsize = ALIGN(result.uint_32, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) case Opt_rasize:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) fsopt->rasize = ALIGN(result.uint_32, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) case Opt_caps_wanted_delay_min:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (result.uint_32 < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) fsopt->caps_wanted_delay_min = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) case Opt_caps_wanted_delay_max:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) if (result.uint_32 < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) fsopt->caps_wanted_delay_max = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case Opt_caps_max:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (result.int_32 < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) fsopt->caps_max = result.int_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) case Opt_readdir_max_entries:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (result.uint_32 < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) fsopt->max_readdir = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) case Opt_readdir_max_bytes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (result.uint_32 < PAGE_SIZE && result.uint_32 != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) fsopt->max_readdir_bytes = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) case Opt_congestion_kb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) if (result.uint_32 < 1024) /* at least 1M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) fsopt->congestion_kb = result.uint_32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) case Opt_dirstat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) fsopt->flags |= CEPH_MOUNT_OPT_DIRSTAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) fsopt->flags &= ~CEPH_MOUNT_OPT_DIRSTAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) case Opt_rbytes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) fsopt->flags |= CEPH_MOUNT_OPT_RBYTES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) fsopt->flags &= ~CEPH_MOUNT_OPT_RBYTES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) case Opt_asyncreaddir:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) fsopt->flags &= ~CEPH_MOUNT_OPT_NOASYNCREADDIR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) fsopt->flags |= CEPH_MOUNT_OPT_NOASYNCREADDIR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) case Opt_dcache:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) fsopt->flags |= CEPH_MOUNT_OPT_DCACHE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) fsopt->flags &= ~CEPH_MOUNT_OPT_DCACHE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) case Opt_ino32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) fsopt->flags |= CEPH_MOUNT_OPT_INO32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) fsopt->flags &= ~CEPH_MOUNT_OPT_INO32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) case Opt_fscache:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) #ifdef CONFIG_CEPH_FSCACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) kfree(fsopt->fscache_uniq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) fsopt->fscache_uniq = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (result.negated) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) fsopt->fscache_uniq = param->string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) param->string = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) return invalfc(fc, "fscache support is disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) case Opt_poolperm:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) fsopt->flags &= ~CEPH_MOUNT_OPT_NOPOOLPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) fsopt->flags |= CEPH_MOUNT_OPT_NOPOOLPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) case Opt_require_active_mds:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) fsopt->flags &= ~CEPH_MOUNT_OPT_MOUNTWAIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) fsopt->flags |= CEPH_MOUNT_OPT_MOUNTWAIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) case Opt_quotadf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) fsopt->flags &= ~CEPH_MOUNT_OPT_NOQUOTADF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) fsopt->flags |= CEPH_MOUNT_OPT_NOQUOTADF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) case Opt_copyfrom:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) fsopt->flags &= ~CEPH_MOUNT_OPT_NOCOPYFROM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) fsopt->flags |= CEPH_MOUNT_OPT_NOCOPYFROM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) case Opt_acl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (!result.negated) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) #ifdef CONFIG_CEPH_FS_POSIX_ACL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) fc->sb_flags |= SB_POSIXACL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return invalfc(fc, "POSIX ACL support is disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) fc->sb_flags &= ~SB_POSIXACL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) case Opt_wsync:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (!result.negated)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) fsopt->flags &= ~CEPH_MOUNT_OPT_ASYNC_DIROPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) fsopt->flags |= CEPH_MOUNT_OPT_ASYNC_DIROPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) out_of_range:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return invalfc(fc, "%s out of range", param->key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static void destroy_mount_options(struct ceph_mount_options *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) dout("destroy_mount_options %p\n", args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) if (!args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) kfree(args->snapdir_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) kfree(args->mds_namespace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) kfree(args->server_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) kfree(args->fscache_uniq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) kfree(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) static int strcmp_null(const char *s1, const char *s2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (!s1 && !s2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (s1 && !s2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (!s1 && s2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return strcmp(s1, s2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) static int compare_mount_options(struct ceph_mount_options *new_fsopt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) struct ceph_options *new_opt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) struct ceph_fs_client *fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct ceph_mount_options *fsopt1 = new_fsopt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct ceph_mount_options *fsopt2 = fsc->mount_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) int ofs = offsetof(struct ceph_mount_options, snapdir_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) ret = memcmp(fsopt1, fsopt2, ofs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) ret = strcmp_null(fsopt1->snapdir_name, fsopt2->snapdir_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) ret = strcmp_null(fsopt1->mds_namespace, fsopt2->mds_namespace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) ret = strcmp_null(fsopt1->server_path, fsopt2->server_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) ret = strcmp_null(fsopt1->fscache_uniq, fsopt2->fscache_uniq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) return ceph_compare_options(new_opt, fsc->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) * ceph_show_options - Show mount options in /proc/mounts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * @m: seq_file to write to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * @root: root of that (sub)tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) static int ceph_show_options(struct seq_file *m, struct dentry *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) struct ceph_fs_client *fsc = ceph_sb_to_client(root->d_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) struct ceph_mount_options *fsopt = fsc->mount_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) size_t pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* a comma between MNT/MS and client options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) seq_putc(m, ',');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) pos = m->count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) ret = ceph_print_client_options(m, fsc->client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /* retract our comma if no client options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (m->count == pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) m->count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) if (fsopt->flags & CEPH_MOUNT_OPT_DIRSTAT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) seq_puts(m, ",dirstat");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if ((fsopt->flags & CEPH_MOUNT_OPT_RBYTES))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) seq_puts(m, ",rbytes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) if (fsopt->flags & CEPH_MOUNT_OPT_NOASYNCREADDIR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) seq_puts(m, ",noasyncreaddir");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if ((fsopt->flags & CEPH_MOUNT_OPT_DCACHE) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) seq_puts(m, ",nodcache");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (fsopt->flags & CEPH_MOUNT_OPT_INO32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) seq_puts(m, ",ino32");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) if (fsopt->flags & CEPH_MOUNT_OPT_FSCACHE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) seq_show_option(m, "fsc", fsopt->fscache_uniq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (fsopt->flags & CEPH_MOUNT_OPT_NOPOOLPERM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) seq_puts(m, ",nopoolperm");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (fsopt->flags & CEPH_MOUNT_OPT_NOQUOTADF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) seq_puts(m, ",noquotadf");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) #ifdef CONFIG_CEPH_FS_POSIX_ACL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (root->d_sb->s_flags & SB_POSIXACL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) seq_puts(m, ",acl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) seq_puts(m, ",noacl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) if ((fsopt->flags & CEPH_MOUNT_OPT_NOCOPYFROM) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) seq_puts(m, ",copyfrom");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) if (fsopt->mds_namespace)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) seq_show_option(m, "mds_namespace", fsopt->mds_namespace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (fsopt->flags & CEPH_MOUNT_OPT_CLEANRECOVER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) seq_show_option(m, "recover_session", "clean");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (fsopt->flags & CEPH_MOUNT_OPT_ASYNC_DIROPS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) seq_puts(m, ",nowsync");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) if (fsopt->wsize != CEPH_MAX_WRITE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) seq_printf(m, ",wsize=%u", fsopt->wsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) if (fsopt->rsize != CEPH_MAX_READ_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) seq_printf(m, ",rsize=%u", fsopt->rsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (fsopt->rasize != CEPH_RASIZE_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) seq_printf(m, ",rasize=%u", fsopt->rasize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) if (fsopt->congestion_kb != default_congestion_kb())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) seq_printf(m, ",write_congestion_kb=%u", fsopt->congestion_kb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) if (fsopt->caps_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) seq_printf(m, ",caps_max=%d", fsopt->caps_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (fsopt->caps_wanted_delay_min != CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) seq_printf(m, ",caps_wanted_delay_min=%u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) fsopt->caps_wanted_delay_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) if (fsopt->caps_wanted_delay_max != CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) seq_printf(m, ",caps_wanted_delay_max=%u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) fsopt->caps_wanted_delay_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (fsopt->max_readdir != CEPH_MAX_READDIR_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) seq_printf(m, ",readdir_max_entries=%u", fsopt->max_readdir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (fsopt->max_readdir_bytes != CEPH_MAX_READDIR_BYTES_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) seq_printf(m, ",readdir_max_bytes=%u", fsopt->max_readdir_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) if (strcmp(fsopt->snapdir_name, CEPH_SNAPDIRNAME_DEFAULT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) seq_show_option(m, "snapdirname", fsopt->snapdir_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) * handle any mon messages the standard library doesn't understand.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) * return error if we don't either.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) static int extra_mon_dispatch(struct ceph_client *client, struct ceph_msg *msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) struct ceph_fs_client *fsc = client->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) int type = le16_to_cpu(msg->hdr.type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) case CEPH_MSG_MDS_MAP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) ceph_mdsc_handle_mdsmap(fsc->mdsc, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) case CEPH_MSG_FS_MAP_USER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) ceph_mdsc_handle_fsmap(fsc->mdsc, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) * create a new fs client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) * Success or not, this function consumes @fsopt and @opt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) struct ceph_options *opt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) struct ceph_fs_client *fsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) fsc = kzalloc(sizeof(*fsc), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) if (!fsc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) fsc->client = ceph_create_client(opt, fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) if (IS_ERR(fsc->client)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) err = PTR_ERR(fsc->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) opt = NULL; /* fsc->client now owns this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) fsc->client->extra_mon_dispatch = extra_mon_dispatch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) ceph_set_opt(fsc->client, ABORT_ON_FULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) if (!fsopt->mds_namespace) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) ceph_monc_want_map(&fsc->client->monc, CEPH_SUB_MDSMAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) 0, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) ceph_monc_want_map(&fsc->client->monc, CEPH_SUB_FSMAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) 0, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) fsc->mount_options = fsopt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) fsc->sb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) fsc->mount_state = CEPH_MOUNT_MOUNTING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) fsc->filp_gen = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) fsc->have_copy_from2 = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) atomic_long_set(&fsc->writeback_count, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) * The number of concurrent works can be high but they don't need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) * to be processed in parallel, limit concurrency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) fsc->inode_wq = alloc_workqueue("ceph-inode", WQ_UNBOUND, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (!fsc->inode_wq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) goto fail_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) fsc->cap_wq = alloc_workqueue("ceph-cap", 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) if (!fsc->cap_wq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) goto fail_inode_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) spin_lock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) list_add_tail(&fsc->metric_wakeup, &ceph_fsc_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) spin_unlock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) return fsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) fail_inode_wq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) destroy_workqueue(fsc->inode_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) fail_client:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) ceph_destroy_client(fsc->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) kfree(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) if (opt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) ceph_destroy_options(opt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) destroy_mount_options(fsopt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) static void flush_fs_workqueues(struct ceph_fs_client *fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) flush_workqueue(fsc->inode_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) flush_workqueue(fsc->cap_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) static void destroy_fs_client(struct ceph_fs_client *fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) dout("destroy_fs_client %p\n", fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) spin_lock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) list_del(&fsc->metric_wakeup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) spin_unlock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) ceph_mdsc_destroy(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) destroy_workqueue(fsc->inode_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) destroy_workqueue(fsc->cap_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) destroy_mount_options(fsc->mount_options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) ceph_destroy_client(fsc->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) kfree(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) dout("destroy_fs_client %p done\n", fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * caches
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) struct kmem_cache *ceph_inode_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) struct kmem_cache *ceph_cap_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) struct kmem_cache *ceph_cap_flush_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) struct kmem_cache *ceph_dentry_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) struct kmem_cache *ceph_file_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) struct kmem_cache *ceph_dir_file_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) struct kmem_cache *ceph_mds_request_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) mempool_t *ceph_wb_pagevec_pool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) static void ceph_inode_init_once(void *foo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) struct ceph_inode_info *ci = foo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) inode_init_once(&ci->vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) static int __init init_caches(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) int error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) ceph_inode_cachep = kmem_cache_create("ceph_inode_info",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) sizeof(struct ceph_inode_info),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) __alignof__(struct ceph_inode_info),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) SLAB_ACCOUNT, ceph_inode_init_once);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (!ceph_inode_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) ceph_cap_cachep = KMEM_CACHE(ceph_cap, SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) if (!ceph_cap_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) goto bad_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) ceph_cap_flush_cachep = KMEM_CACHE(ceph_cap_flush,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) if (!ceph_cap_flush_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) goto bad_cap_flush;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) ceph_dentry_cachep = KMEM_CACHE(ceph_dentry_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) if (!ceph_dentry_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) goto bad_dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) ceph_file_cachep = KMEM_CACHE(ceph_file_info, SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) if (!ceph_file_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) goto bad_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) ceph_dir_file_cachep = KMEM_CACHE(ceph_dir_file_info, SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (!ceph_dir_file_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) goto bad_dir_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) ceph_mds_request_cachep = KMEM_CACHE(ceph_mds_request, SLAB_MEM_SPREAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) if (!ceph_mds_request_cachep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) goto bad_mds_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) ceph_wb_pagevec_pool = mempool_create_kmalloc_pool(10, CEPH_MAX_WRITE_SIZE >> PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) if (!ceph_wb_pagevec_pool)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) goto bad_pagevec_pool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) error = ceph_fscache_register();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) goto bad_fscache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) bad_fscache:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) kmem_cache_destroy(ceph_mds_request_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) bad_pagevec_pool:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) mempool_destroy(ceph_wb_pagevec_pool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) bad_mds_req:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) kmem_cache_destroy(ceph_dir_file_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) bad_dir_file:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) kmem_cache_destroy(ceph_file_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) bad_file:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) kmem_cache_destroy(ceph_dentry_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) bad_dentry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) kmem_cache_destroy(ceph_cap_flush_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) bad_cap_flush:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) kmem_cache_destroy(ceph_cap_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) bad_cap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) kmem_cache_destroy(ceph_inode_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) static void destroy_caches(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) * Make sure all delayed rcu free inodes are flushed before we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) * destroy cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) rcu_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) kmem_cache_destroy(ceph_inode_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) kmem_cache_destroy(ceph_cap_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) kmem_cache_destroy(ceph_cap_flush_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) kmem_cache_destroy(ceph_dentry_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) kmem_cache_destroy(ceph_file_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) kmem_cache_destroy(ceph_dir_file_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) kmem_cache_destroy(ceph_mds_request_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) mempool_destroy(ceph_wb_pagevec_pool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) ceph_fscache_unregister();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) * ceph_umount_begin - initiate forced umount. Tear down the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) * mount, skipping steps that may hang while waiting for server(s).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) static void ceph_umount_begin(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) dout("ceph_umount_begin - starting forced umount\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) if (!fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) fsc->mount_state = CEPH_MOUNT_SHUTDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) ceph_osdc_abort_requests(&fsc->client->osdc, -EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) ceph_mdsc_force_umount(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) fsc->filp_gen++; // invalidate open files
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) static const struct super_operations ceph_super_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) .alloc_inode = ceph_alloc_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) .free_inode = ceph_free_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) .write_inode = ceph_write_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) .drop_inode = generic_delete_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) .evict_inode = ceph_evict_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) .sync_fs = ceph_sync_fs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) .put_super = ceph_put_super,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) .show_options = ceph_show_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) .statfs = ceph_statfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) .umount_begin = ceph_umount_begin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) * Bootstrap mount by opening the root directory. Note the mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) * @started time from caller, and time out if this takes too long.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) const char *path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) unsigned long started)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) struct ceph_mds_client *mdsc = fsc->mdsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) struct ceph_mds_request *req = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) struct dentry *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) /* open dir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) dout("open_root_inode opening '%s'\n", path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_GETATTR, USE_ANY_MDS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) if (IS_ERR(req))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) return ERR_CAST(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) req->r_path1 = kstrdup(path, GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) if (!req->r_path1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) root = ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) goto out;
^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) req->r_ino1.ino = CEPH_INO_ROOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) req->r_ino1.snap = CEPH_NOSNAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) req->r_started = started;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) req->r_timeout = fsc->client->options->mount_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) req->r_args.getattr.mask = cpu_to_le32(CEPH_STAT_CAP_INODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) req->r_num_caps = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) err = ceph_mdsc_do_request(mdsc, NULL, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (err == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) struct inode *inode = req->r_target_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) req->r_target_inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) dout("open_root_inode success\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) root = d_make_root(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) if (!root) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) root = ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) dout("open_root_inode success, root dentry is %p\n", root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) root = ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) ceph_mdsc_put_request(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) return root;
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) * mount: join the ceph cluster, and open root directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) unsigned long started = jiffies; /* note the start time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) struct dentry *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) dout("mount start %p\n", fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) mutex_lock(&fsc->client->mount_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) if (!fsc->sb->s_root) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) const char *path = fsc->mount_options->server_path ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) fsc->mount_options->server_path + 1 : "";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) err = __ceph_open_session(fsc->client, started);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) /* setup fscache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (fsc->mount_options->flags & CEPH_MOUNT_OPT_FSCACHE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) err = ceph_fscache_register_fs(fsc, fc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) dout("mount opening path '%s'\n", path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) ceph_fs_debugfs_init(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) root = open_root_dentry(fsc, path, started);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) if (IS_ERR(root)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) err = PTR_ERR(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) fsc->sb->s_root = dget(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) root = dget(fsc->sb->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) fsc->mount_state = CEPH_MOUNT_MOUNTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) dout("mount success\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) mutex_unlock(&fsc->client->mount_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) mutex_unlock(&fsc->client->mount_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) static int ceph_set_super(struct super_block *s, struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) struct ceph_fs_client *fsc = s->s_fs_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) dout("set_super %p\n", s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) s->s_maxbytes = MAX_LFS_FILESIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) s->s_xattr = ceph_xattr_handlers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) fsc->sb = s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) fsc->max_file_size = 1ULL << 40; /* temp value until we get mdsmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) s->s_op = &ceph_super_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) s->s_d_op = &ceph_dentry_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) s->s_export_op = &ceph_export_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) s->s_time_gran = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) s->s_time_min = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) s->s_time_max = U32_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) ret = set_anon_super_fc(s, fc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) fsc->sb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) * share superblock if same fs AND options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) static int ceph_compare_super(struct super_block *sb, struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) struct ceph_fs_client *new = fc->s_fs_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) struct ceph_mount_options *fsopt = new->mount_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) struct ceph_options *opt = new->client->options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) dout("ceph_compare_super %p\n", sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) if (compare_mount_options(fsopt, opt, fsc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) dout("monitor(s)/mount options don't match\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if ((opt->flags & CEPH_OPT_FSID) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) ceph_fsid_compare(&opt->fsid, &fsc->client->fsid)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) dout("fsid doesn't match\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) if (fc->sb_flags != (sb->s_flags & ~SB_BORN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) dout("flags differ\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) if (fsc->blocklisted && !ceph_test_mount_opt(fsc, CLEANRECOVER)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) dout("client is blocklisted (and CLEANRECOVER is not set)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) if (fsc->mount_state == CEPH_MOUNT_SHUTDOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) dout("client has been forcibly unmounted\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) * construct our own bdi so we can control readahead, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) static int ceph_setup_bdi(struct super_block *sb, struct ceph_fs_client *fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) err = super_setup_bdi_name(sb, "ceph-%ld",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) atomic_long_inc_return(&bdi_seq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) /* set ra_pages based on rasize mount option? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) sb->s_bdi->ra_pages = fsc->mount_options->rasize >> PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) /* set io_pages based on max osd read size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) sb->s_bdi->io_pages = fsc->mount_options->rsize >> PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) static int ceph_get_tree(struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) struct ceph_parse_opts_ctx *pctx = fc->fs_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) struct super_block *sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) struct ceph_fs_client *fsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) struct dentry *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) int (*compare_super)(struct super_block *, struct fs_context *) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) ceph_compare_super;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) dout("ceph_get_tree\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) if (!fc->source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) return invalfc(fc, "No source");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) /* create client (which we may/may not use) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) fsc = create_fs_client(pctx->opts, pctx->copts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) pctx->opts = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) pctx->copts = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) if (IS_ERR(fsc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) err = PTR_ERR(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) goto out_final;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) err = ceph_mdsc_init(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) if (ceph_test_opt(fsc->client, NOSHARE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) compare_super = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) fc->s_fs_info = fsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) sb = sget_fc(fc, compare_super, ceph_set_super);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) fc->s_fs_info = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) if (IS_ERR(sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) err = PTR_ERR(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) if (ceph_sb_to_client(sb) != fsc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) destroy_fs_client(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) fsc = ceph_sb_to_client(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) dout("get_sb got existing client %p\n", fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) dout("get_sb using new client %p\n", fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) err = ceph_setup_bdi(sb, fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) goto out_splat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) res = ceph_real_mount(fsc, fc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) if (IS_ERR(res)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) err = PTR_ERR(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) goto out_splat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) dout("root %p inode %p ino %llx.%llx\n", res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) d_inode(res), ceph_vinop(d_inode(res)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) fc->root = fsc->sb->s_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) out_splat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) if (!ceph_mdsmap_is_cluster_available(fsc->mdsc->mdsmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) pr_info("No mds server is up or the cluster is laggy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) err = -EHOSTUNREACH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) ceph_mdsc_close_sessions(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) deactivate_locked_super(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) goto out_final;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) destroy_fs_client(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) out_final:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) dout("ceph_get_tree fail %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) static void ceph_free_fc(struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) struct ceph_parse_opts_ctx *pctx = fc->fs_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) if (pctx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) destroy_mount_options(pctx->opts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) ceph_destroy_options(pctx->copts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) kfree(pctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) static int ceph_reconfigure_fc(struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) struct ceph_parse_opts_ctx *pctx = fc->fs_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) struct ceph_mount_options *fsopt = pctx->opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) struct ceph_fs_client *fsc = ceph_sb_to_client(fc->root->d_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) if (fsopt->flags & CEPH_MOUNT_OPT_ASYNC_DIROPS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) ceph_set_mount_opt(fsc, ASYNC_DIROPS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) ceph_clear_mount_opt(fsc, ASYNC_DIROPS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) sync_filesystem(fc->root->d_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) static const struct fs_context_operations ceph_context_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) .free = ceph_free_fc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) .parse_param = ceph_parse_mount_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) .get_tree = ceph_get_tree,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) .reconfigure = ceph_reconfigure_fc,
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) * Set up the filesystem mount context.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) static int ceph_init_fs_context(struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct ceph_parse_opts_ctx *pctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) struct ceph_mount_options *fsopt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) pctx = kzalloc(sizeof(*pctx), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) if (!pctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) pctx->copts = ceph_alloc_options();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) if (!pctx->copts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) pctx->opts = kzalloc(sizeof(*pctx->opts), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) if (!pctx->opts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) fsopt = pctx->opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) fsopt->flags = CEPH_MOUNT_OPT_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) fsopt->wsize = CEPH_MAX_WRITE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) fsopt->rsize = CEPH_MAX_READ_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) fsopt->rasize = CEPH_RASIZE_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) fsopt->snapdir_name = kstrdup(CEPH_SNAPDIRNAME_DEFAULT, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) if (!fsopt->snapdir_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) fsopt->caps_wanted_delay_min = CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) fsopt->caps_wanted_delay_max = CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) fsopt->max_readdir = CEPH_MAX_READDIR_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) fsopt->max_readdir_bytes = CEPH_MAX_READDIR_BYTES_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) fsopt->congestion_kb = default_congestion_kb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) #ifdef CONFIG_CEPH_FS_POSIX_ACL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) fc->sb_flags |= SB_POSIXACL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) fc->fs_private = pctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) fc->ops = &ceph_context_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) nomem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) destroy_mount_options(pctx->opts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) ceph_destroy_options(pctx->copts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) kfree(pctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) static void ceph_kill_sb(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) struct ceph_fs_client *fsc = ceph_sb_to_client(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) dout("kill_sb %p\n", s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) ceph_mdsc_pre_umount(fsc->mdsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) flush_fs_workqueues(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) kill_anon_super(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) fsc->client->extra_mon_dispatch = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) ceph_fs_debugfs_cleanup(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) ceph_fscache_unregister_fs(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) destroy_fs_client(fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) static struct file_system_type ceph_fs_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) .name = "ceph",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) .init_fs_context = ceph_init_fs_context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) .kill_sb = ceph_kill_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) .fs_flags = FS_RENAME_DOES_D_MOVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) MODULE_ALIAS_FS("ceph");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) int ceph_force_reconnect(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) ceph_umount_begin(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) /* Make sure all page caches get invalidated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) * see remove_session_caps_cb() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) flush_workqueue(fsc->inode_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) /* In case that we were blocklisted. This also reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) * all mon/osd connections */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) ceph_reset_client_addr(fsc->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) ceph_osdc_clear_abort_err(&fsc->client->osdc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) fsc->blocklisted = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) fsc->mount_state = CEPH_MOUNT_MOUNTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) if (sb->s_root) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) err = __ceph_do_getattr(d_inode(sb->s_root), NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) CEPH_STAT_CAP_INODE, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) static int __init init_ceph(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) int ret = init_caches();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) ceph_flock_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) ret = register_filesystem(&ceph_fs_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) goto out_caches;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) pr_info("loaded (mds proto %d)\n", CEPH_MDSC_PROTOCOL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) out_caches:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) destroy_caches();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) static void __exit exit_ceph(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) dout("exit_ceph\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) unregister_filesystem(&ceph_fs_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) destroy_caches();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) static int param_set_metrics(const char *val, const struct kernel_param *kp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) struct ceph_fs_client *fsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) ret = param_set_bool(val, kp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) pr_err("Failed to parse sending metrics switch value '%s'\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) } else if (!disable_send_metrics) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) // wake up all the mds clients
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) spin_lock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) list_for_each_entry(fsc, &ceph_fsc_list, metric_wakeup) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) metric_schedule_delayed(&fsc->mdsc->metric);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) spin_unlock(&ceph_fsc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) static const struct kernel_param_ops param_ops_metrics = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) .set = param_set_metrics,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) .get = param_get_bool,
^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) bool disable_send_metrics = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) module_param_cb(disable_send_metrics, ¶m_ops_metrics, &disable_send_metrics, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) MODULE_PARM_DESC(disable_send_metrics, "Enable sending perf metrics to ceph cluster (default: on)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) module_init(init_ceph);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) module_exit(exit_ceph);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) MODULE_AUTHOR("Sage Weil <sage@newdream.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) MODULE_AUTHOR("Patience Warnick <patience@newdream.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) MODULE_DESCRIPTION("Ceph filesystem for Linux");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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