diff options
Diffstat (limited to 'fs/ceph/super.c')
| -rw-r--r-- | fs/ceph/super.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 73f321b52895..2b8438d8a324 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -285,8 +285,10 @@ static int ceph_parse_new_source(const char *dev_name, const char *dev_name_end, size_t len; struct ceph_fsid fsid; struct ceph_parse_opts_ctx *pctx = fc->fs_private; + struct ceph_options *opts = pctx->copts; struct ceph_mount_options *fsopt = pctx->opts; - char *fsid_start, *fs_name_start; + const char *name_start = dev_name; + const char *fsid_start, *fs_name_start; if (*dev_name_end != '=') { dout("separator '=' missing in source"); @@ -296,8 +298,14 @@ static int ceph_parse_new_source(const char *dev_name, const char *dev_name_end, fsid_start = strchr(dev_name, '@'); if (!fsid_start) return invalfc(fc, "missing cluster fsid"); - ++fsid_start; /* start of cluster fsid */ + len = fsid_start - name_start; + kfree(opts->name); + opts->name = kstrndup(name_start, len, GFP_KERNEL); + if (!opts->name) + return -ENOMEM; + dout("using %s entity name", opts->name); + ++fsid_start; /* start of cluster fsid */ fs_name_start = strchr(fsid_start, '.'); if (!fs_name_start) return invalfc(fc, "missing file system name"); @@ -423,6 +431,8 @@ static int ceph_parse_mount_param(struct fs_context *fc, switch (token) { case Opt_snapdirname: + if (strlen(param->string) > NAME_MAX) + return invalfc(fc, "snapdirname too long"); kfree(fsopt->snapdir_name); fsopt->snapdir_name = param->string; param->string = NULL; @@ -1023,8 +1033,7 @@ void ceph_umount_begin(struct super_block *sb) struct ceph_fs_client *fsc = ceph_sb_to_fs_client(sb); doutc(fsc->client, "starting forced umount\n"); - if (!fsc) - return; + fsc->mount_state = CEPH_MOUNT_SHUTDOWN; __ceph_umount_begin(fsc); } @@ -1217,6 +1226,7 @@ static int ceph_set_super(struct super_block *s, struct fs_context *fc) s->s_time_min = 0; s->s_time_max = U32_MAX; s->s_flags |= SB_NODIRATIME | SB_NOATIME; + s->s_magic = CEPH_SUPER_MAGIC; ceph_fscrypt_set_ops(s); @@ -1553,6 +1563,17 @@ static void ceph_kill_sb(struct super_block *s) */ sync_filesystem(s); + if (atomic64_read(&mdsc->dirty_folios) > 0) { + wait_queue_head_t *wq = &mdsc->flush_end_wq; + long timeleft = wait_event_killable_timeout(*wq, + atomic64_read(&mdsc->dirty_folios) <= 0, + fsc->client->options->mount_timeout); + if (!timeleft) /* timed out */ + pr_warn_client(cl, "umount timed out, %ld\n", timeleft); + else if (timeleft < 0) /* killed */ + pr_warn_client(cl, "umount was killed, %ld\n", timeleft); + } + spin_lock(&mdsc->stopping_lock); mdsc->stopping = CEPH_MDSC_STOPPING_FLUSHING; wait = !!atomic_read(&mdsc->stopping_blockers); |