diff options
| -rw-r--r-- | fs/xfs/xfs_log.c | 20 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.c | 31 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.h | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 8 |
4 files changed, 18 insertions, 42 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index a613f008b95f..58699881c100 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1110,6 +1110,7 @@ xfs_log_cover( { struct xlog *log = mp->m_log; int error = 0; + bool need_covered; ASSERT((xlog_cil_empty(log) && xlog_iclogs_empty(log) && !xfs_ail_min_lsn(log->l_ailp)) || @@ -1119,6 +1120,21 @@ xfs_log_cover( return 0; /* + * xfs_log_need_covered() is not idempotent because it progresses the + * state machine if the log requires covering. Therefore, we must call + * this function once and use the result until we've issued an sb sync. + * Do so first to make that abundantly clear. + * + * Fall into the covering sequence if the log needs covering or the + * mount has lazy superblock accounting to sync to disk. The sb sync + * used for covering accumulates the in-core counters, so covering + * handles this for us. + */ + need_covered = xfs_log_need_covered(mp); + if (!need_covered && !xfs_sb_version_haslazysbcount(&mp->m_sb)) + return 0; + + /* * To cover the log, commit the superblock twice (at most) in * independent checkpoints. The first serves as a reference for the * tail pointer. The sync transaction and AIL push empties the AIL and @@ -1127,12 +1143,12 @@ xfs_log_cover( * covering the log. Push the AIL one more time to leave it empty, as * we found it. */ - while (xfs_log_need_covered(mp)) { + do { error = xfs_sync_sb(mp, true); if (error) break; xfs_ail_push_all_sync(mp->m_ail); - } + } while (xfs_log_need_covered(mp)); return error; } diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 8c24e1ee63ec..b621b09899e5 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1124,12 +1124,6 @@ xfs_unmountfs( xfs_warn(mp, "Unable to free reserved block pool. " "Freespace may not be correct on next mount."); - error = xfs_log_sbcount(mp); - if (error) - xfs_warn(mp, "Unable to update superblock counters. " - "Freespace may not be correct on next mount."); - - xfs_log_unmount(mp); xfs_da_unmount(mp); xfs_uuid_unmount(mp); @@ -1165,31 +1159,6 @@ xfs_fs_writable( } /* - * xfs_log_sbcount - * - * Sync the superblock counters to disk. - * - * Note this code can be called during the process of freezing, so we use the - * transaction allocator that does not block when the transaction subsystem is - * in its frozen state. - */ -int -xfs_log_sbcount(xfs_mount_t *mp) -{ - if (!xfs_log_writable(mp)) - return 0; - - /* - * we don't need to do this if we are updating the superblock - * counters on every modification. - */ - if (!xfs_sb_version_haslazysbcount(&mp->m_sb)) - return 0; - - return xfs_sync_sb(mp, true); -} - -/* * Deltas for the block count can vary from 1 to very large, but lock contention * only occurs on frequent small block count updates such as in the delayed * allocation path for buffered writes (page a time updates). Hence we set diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index dfa429b77ee2..452ca7654dc5 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -399,7 +399,6 @@ int xfs_buf_hash_init(xfs_perag_t *pag); void xfs_buf_hash_destroy(xfs_perag_t *pag); extern void xfs_uuid_table_free(void); -extern int xfs_log_sbcount(xfs_mount_t *); extern uint64_t xfs_default_resblks(xfs_mount_t *mp); extern int xfs_mountfs(xfs_mount_t *mp); extern int xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount, diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 09d956e30fd8..75ada867c665 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -884,19 +884,11 @@ void xfs_quiesce_attr( struct xfs_mount *mp) { - int error = 0; - cancel_delayed_work_sync(&mp->m_log->l_work); /* force the log to unpin objects from the now complete transactions */ xfs_log_force(mp, XFS_LOG_SYNC); - - /* Push the superblock and write an unmount record */ - error = xfs_log_sbcount(mp); - if (error) - xfs_warn(mp, "xfs_attr_quiesce: failed to log sb changes. " - "Frozen image may not be consistent."); xfs_log_clean(mp); } |