commit 1394d6761b6e9e15ee7c632a6d48791188727b40
author Kent Overstreet <kmo@daterainc.com> Mon Sep 23 23:17:32 2013 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Tue Sep 24 14:41:43 2013 -0700
tree 0ae9311ab15399b19ad53c8232b657d2b2b84ed5
parent c2a4f3183a1248f615a695fbd8905da55ad11bba

bcache: Fix a flush/fua performance bug

bch_journal_meta() was missing the flush to make the journal write
actually go down (instead of waiting up to journal_delay_ms)...

Whoops

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/md/bcache/journal.c

diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index f5203df..8435f81 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -695,6 +695,7 @@
 		if (cl)
 			BUG_ON(!closure_wait(&w->wait, cl));
 
+		closure_flush(&c->journal.io);
 		__journal_try_write(c, true);
 	}
 }