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| author | David Sterba <dsterba@suse.com> | 2016-01-21 18:54:41 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-01-21 18:54:41 +0100 |
| commit | 14e46e04958df740c6c6a94849f176159a333f13 (patch) | |
| tree | 79a2d0a4255c3555175ca3803fb9c9a6b6c8ea1a /fs/btrfs/ioctl.c | |
| parent | btrfs: sysfs: introduce helper for syncing bits with sysfs files (diff) | |
| download | linux-14e46e04958df740c6c6a94849f176159a333f13.tar.xz linux-14e46e04958df740c6c6a94849f176159a333f13.zip | |
btrfs: synchronize incompat feature bits with sysfs files
The files under /sys/fs/UUID/features get out of sync with the actual
incompat bits set for the filesystem if they change after mount (eg. the
LZO compression).
Synchronize the feature bits with the sysfs files representing them
right after we set/clear them.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index e392dd67f0ba..209dcfa9ab33 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1455,6 +1455,8 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, if (range->compress_type == BTRFS_COMPRESS_LZO) { btrfs_set_fs_incompat(root->fs_info, COMPRESS_LZO); + btrfs_sysfs_feature_update(root->fs_info, + BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO, FEAT_INCOMPAT); } ret = defrag_count; @@ -4063,6 +4065,8 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) btrfs_free_path(path); btrfs_set_fs_incompat(root->fs_info, DEFAULT_SUBVOL); + btrfs_sysfs_feature_update(root->fs_info, + BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL, FEAT_INCOMPAT); btrfs_end_transaction(trans, root); out: mnt_drop_write_file(file); |