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authorDavid Sterba <dsterba@suse.cz>2014-07-23 14:39:35 +0200
committerChris Mason <clm@fb.com>2014-09-17 13:37:42 -0700
commit2fad4e83e12591eb3bd213875b9edc2d18e93383 (patch)
tree79f8dcc4da44b3124c3df2ff6a3bd014d43467fd /fs/btrfs/ioctl.c
parentc01a5c074c0f6f85a3b02e39432b9e5576ab51de (diff)
downloadlinux-2fad4e83e12591eb3bd213875b9edc2d18e93383.tar.bz2
btrfs: wake up transaction thread from SYNC_FS ioctl
The transaction thread may want to do more work, namely it pokes the cleaner ktread that will start processing uncleaned subvols. This can be triggered by user via the 'btrfs fi sync' command, otherwise there was a delay up to 30 seconds before the cleaner started to clean old snapshots. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index e5ed222267ee..4492e017bdb2 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -5288,6 +5288,12 @@ long btrfs_ioctl(struct file *file, unsigned int
if (ret)
return ret;
ret = btrfs_sync_fs(file->f_dentry->d_sb, 1);
+ /*
+ * The transaction thread may want to do more work,
+ * namely it pokes the cleaner ktread that will start
+ * processing uncleaned subvols.
+ */
+ wake_up_process(root->fs_info->transaction_kthread);
return ret;
}
case BTRFS_IOC_START_SYNC: