[2/5] btrfs: account as waiting for IO, while waiting fot the flush bio completion
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Message ID ee2d525739984033396f4bdefaa5d68f11553a0b.1497544265.git.dsterba@suse.com
State New
Headers show

Commit Message

David Sterba June 15, 2017, 4:49 p.m. UTC
Similar to what submit_bio_wait does, we should account for IO while
waiting for a bio completion. This has marginal visible effects, flush
bio is short-lived.

Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/disk-io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 27d44d6ab775..05ff81ecb887 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3519,7 +3519,7 @@  static int wait_dev_flush(struct btrfs_device *device)
 	if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags))
 		return 0;
 
-	wait_for_completion(&device->flush_wait);
+	wait_for_completion_io(&device->flush_wait);
 
 	if (bio->bi_error) {
 		ret = bio->bi_error;