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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2014-01-06 09:58:33 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-01-28 13:20:20 -0800 |
| commit | a88998f291fc707f18ee42ae45220a3a3e384c27 (patch) | |
| tree | bb4d7726e4d56e970bd1d1864afe999333037cee | |
| parent | d399167d88ea53590d6c0850b2d5534cbd21da02 (diff) | |
| download | linux-stable-a88998f291fc707f18ee42ae45220a3a3e384c27.tar.gz linux-stable-a88998f291fc707f18ee42ae45220a3a3e384c27.tar.bz2 linux-stable-a88998f291fc707f18ee42ae45220a3a3e384c27.zip | |
btrfs: Add treelog mount option.
Add treelog mount option to enable tree log with
remount option.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | Documentation/filesystems/btrfs.txt | 3 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 8 |
2 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index e05c6aecc0cc..d11cc2f8077b 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -164,8 +164,9 @@ Options with (*) are default options and will not show in the mount options. Enable/disable data checksumming for newly created files. Datasum implies datacow. + treelog(*) notreelog - Disable the tree logging used for fsync and O_SYNC writes. + Enable/disable the tree logging used for fsync and O_SYNC writes. recovery Enable autorecovery attempts if a bad tree root is found at mount time. diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index e84e6cb57526..16d7fc751ba8 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -325,7 +325,7 @@ enum { Opt_check_integrity_print_mask, Opt_fatal_errors, Opt_rescan_uuid_tree, Opt_commit_interval, Opt_barrier, Opt_nodefrag, Opt_nodiscard, Opt_noenospc_debug, Opt_noflushoncommit, Opt_acl, Opt_datacow, - Opt_datasum, + Opt_datasum, Opt_treelog, Opt_err, }; @@ -353,6 +353,7 @@ static match_table_t tokens = { {Opt_acl, "acl"}, {Opt_noacl, "noacl"}, {Opt_notreelog, "notreelog"}, + {Opt_treelog, "treelog"}, {Opt_flushoncommit, "flushoncommit"}, {Opt_noflushoncommit, "noflushoncommit"}, {Opt_ratio, "metadata_ratio=%d"}, @@ -579,6 +580,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) btrfs_info(root->fs_info, "disabling tree log"); btrfs_set_opt(info->mount_opt, NOTREELOG); break; + case Opt_treelog: + if (btrfs_test_opt(root, NOTREELOG)) + btrfs_info(root->fs_info, "enabling tree log"); + btrfs_clear_opt(info->mount_opt, NOTREELOG); + break; case Opt_flushoncommit: btrfs_info(root->fs_info, "turning on flush-on-commit"); btrfs_set_opt(info->mount_opt, FLUSHONCOMMIT); |