[dm-devel] [PATCH] dm writecache: handle REQ_FUA

[Maged Mokhtar]

Call writecache_flush() on REQ_FUA.

Signed-off-by: Maged Mokhtar <mmokhtar at petasan.org>
---
  drivers/md/dm-writecache.c |    3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/md/dm-writecache.c	2019-10-23 22:01:18.480115962 +0200
+++ b/drivers/md/dm-writecache.c	2019-10-23 22:02:08.616113729 +0200
@@ -1218,7 +1218,8 @@ bio_copy:
  			}
  		} while (bio->bi_iter.bi_size);

-		if (unlikely(wc->uncommitted_blocks >= wc->autocommit_blocks))
+		if (unlikely(bio->bi_opf & REQ_FUA ||
+				wc->uncommitted_blocks >= wc->autocommit_blocks))
  			writecache_flush(wc);
  		else
  			writecache_schedule_autocommit(wc);