diff options
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 10 | ||||
| -rw-r--r-- | fs/btrfs/volumes.h | 4 |
4 files changed, 13 insertions, 7 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 41d151b9ffd2..73ab44159d82 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2866,7 +2866,7 @@ retry_root_backup: goto fail_sysfs; } - if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) { + if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info, NULL)) { btrfs_warn(fs_info, "writeable mount is not allowed due to too many missing devices"); goto fail_sysfs; @@ -3369,7 +3369,7 @@ static blk_status_t wait_dev_flush(struct btrfs_device *device) static int check_barrier_error(struct btrfs_fs_info *fs_info) { - if (!btrfs_check_rw_degradable(fs_info)) + if (!btrfs_check_rw_degradable(fs_info, NULL)) return -EIO; return 0; } diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index f40352843c0b..8af7590a5638 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1844,7 +1844,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) goto restore; } - if (!btrfs_check_rw_degradable(fs_info)) { + if (!btrfs_check_rw_degradable(fs_info, NULL)) { btrfs_warn(fs_info, "too many missing devices, writeable remount is not allowed"); ret = -EACCES; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 9a04245003ab..f85991a2585c 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6851,10 +6851,13 @@ out_short_read: /* * Check if all chunks in the fs are OK for read-write degraded mount * + * If the @failing_dev is specified, it's accounted as missing. + * * Return true if all chunks meet the minimal RW mount requirements. * Return false if any chunk doesn't meet the minimal RW mount requirements. */ -bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info) +bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info, + struct btrfs_device *failing_dev) { struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; struct extent_map *em; @@ -6886,9 +6889,12 @@ bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info) test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state) || dev->last_flush_error) missing++; + else if (failing_dev && failing_dev == dev) + missing++; } if (missing > max_tolerated) { - btrfs_warn(fs_info, + if (!failing_dev) + btrfs_warn(fs_info, "chunk %llu missing %d devices, max tolerance is %d for writeable mount", em->start, missing, max_tolerated); free_extent_map(em); diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 3e3ae44b6ccc..a339bcf72feb 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -554,7 +554,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_fs_info *fs_info, struct list_head *btrfs_get_fs_uuids(void); void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info); void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info); - -bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info); +bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info, + struct btrfs_device *failing_dev); #endif |