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bcache: Fix a flush/fua performance bug
author
Kent Overstreet
<kmo@daterainc.com>
Tue, 24 Sep 2013 06:17:32 +0000
(23:17 -0700)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Tue, 24 Sep 2013 21:41:43 +0000
(14:41 -0700)
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
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diff --git
a/drivers/md/bcache/journal.c
b/drivers/md/bcache/journal.c
index
f5203df
..
8435f81
100644
(file)
--- a/
drivers/md/bcache/journal.c
+++ b/
drivers/md/bcache/journal.c
@@
-695,6
+695,7
@@
void bch_journal_meta(struct cache_set *c, struct closure *cl)
if (cl)
BUG_ON(!closure_wait(&w->wait, cl));
+ closure_flush(&c->journal.io);
__journal_try_write(c, true);
}
}