diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-26 08:25:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-26 08:25:16 -0700 |
| commit | cb49f577879519d1bff5898d9eec72dd441286cb (patch) | |
| tree | 25ac9515b139d1f84b4fbeb52135779286b277a3 | |
| parent | f727a938ce1c92d7693e0a66cee2295f2f9ca6d3 (diff) | |
| parent | 211588ad1902df57beeeadc9b44546540fa4bd81 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: do some plugging in the submit_bio threads
| -rw-r--r-- | fs/btrfs/volumes.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 309a57b9fc85..c7367ae5a3e6 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -155,6 +155,15 @@ static noinline int run_scheduled_bios(struct btrfs_device *device) unsigned long limit; unsigned long last_waited = 0; int force_reg = 0; + struct blk_plug plug; + + /* + * this function runs all the bios we've collected for + * a particular device. We don't want to wander off to + * another device without first sending all of these down. + * So, setup a plug here and finish it off before we return + */ + blk_start_plug(&plug); bdi = blk_get_backing_dev_info(device->bdev); fs_info = device->dev_root->fs_info; @@ -294,6 +303,7 @@ loop_lock: spin_unlock(&device->io_lock); done: + blk_finish_plug(&plug); return 0; } |