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| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2013-08-15 17:11:24 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-09-01 08:15:59 -0400 |
| commit | f420ee1e923b931eeef5e2928791e84b1197cab3 (patch) | |
| tree | 11c4273d3ff3a08d18587fb3ae1f9b156e35d12c /fs/btrfs/super.c | |
| parent | 70f801754728017ebc909d603c69255dc1e6f06f (diff) | |
| download | linux-f420ee1e923b931eeef5e2928791e84b1197cab3.tar.gz linux-f420ee1e923b931eeef5e2928791e84b1197cab3.tar.bz2 linux-f420ee1e923b931eeef5e2928791e84b1197cab3.zip | |
Btrfs: add mount option to force UUID tree checking
This should never be needed, but since all functions are there
to check and rebuild the UUID tree, a mount option is added that
allows to force this check and rebuild procedure.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 8 |
1 files changed, 7 insertions, 1 deletions
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)) |