diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 8 |
3 files changed, 10 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 8c954766db93..0ef9d866952f 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1998,6 +1998,7 @@ struct btrfs_ioctl_defrag_range_args { #define BTRFS_MOUNT_CHECK_INTEGRITY (1 << 20) #define BTRFS_MOUNT_CHECK_INTEGRITY_INCLUDING_EXTENT_DATA (1 << 21) #define BTRFS_MOUNT_PANIC_ON_FATAL_ERROR (1 << 22) +#define BTRFS_MOUNT_RESCAN_UUID_TREE (1 << 23) #define BTRFS_DEFAULT_COMMIT_INTERVAL (30) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index e7ef82ad0d26..00914a62abec 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2929,7 +2929,8 @@ retry_root_backup: close_ctree(tree_root); return ret; } - } else if (check_uuid_tree) { + } else if (check_uuid_tree || + btrfs_test_opt(tree_root, RESCAN_UUID_TREE)) { pr_info("btrfs: checking UUID tree\n"); ret = btrfs_check_uuid_tree(fs_info); if (ret) { diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 1bd0bb523660..57090b4284fe 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -321,7 +321,7 @@ enum { Opt_enospc_debug, Opt_subvolrootid, Opt_defrag, Opt_inode_cache, Opt_no_space_cache, Opt_recovery, Opt_skip_balance, Opt_check_integrity, Opt_check_integrity_including_extent_data, - Opt_check_integrity_print_mask, Opt_fatal_errors, + Opt_check_integrity_print_mask, Opt_fatal_errors, Opt_rescan_uuid_tree, Opt_commit_interval, Opt_err, }; @@ -362,6 +362,7 @@ static match_table_t tokens = { {Opt_check_integrity, "check_int"}, {Opt_check_integrity_including_extent_data, "check_int_data"}, {Opt_check_integrity_print_mask, "check_int_print_mask=%d"}, + {Opt_rescan_uuid_tree, "rescan_uuid_tree"}, {Opt_fatal_errors, "fatal_errors=%s"}, {Opt_commit_interval, "commit=%d"}, {Opt_err, NULL}, @@ -572,6 +573,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_space_cache: btrfs_set_opt(info->mount_opt, SPACE_CACHE); break; + case Opt_rescan_uuid_tree: + btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE); + break; case Opt_no_space_cache: printk(KERN_INFO "btrfs: disabling disk space caching\n"); btrfs_clear_opt(info->mount_opt, SPACE_CACHE); @@ -979,6 +983,8 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) seq_puts(seq, ",space_cache"); else seq_puts(seq, ",nospace_cache"); + if (btrfs_test_opt(root, RESCAN_UUID_TREE)) + seq_puts(seq, ",rescan_uuid_tree"); if (btrfs_test_opt(root, CLEAR_CACHE)) seq_puts(seq, ",clear_cache"); if (btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED)) |