3.17-stable review patch. If anyone has any objections, please let me know.
------------------ From: David Sterba <[email protected]> commit 2fad4e83e12591eb3bd213875b9edc2d18e93383 upstream. 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 <[email protected]> Signed-off-by: Chris Mason <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/btrfs/ioctl.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -5283,6 +5283,12 @@ long btrfs_ioctl(struct file *file, unsi 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: -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
