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dm writecache: handle REQ_FUA

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commit c1005322ff02110a4df7f0033368ea015062b583 upstream.

Call writecache_flush() on REQ_FUA in writecache_map().

Cc: stable@vger.kernel.org # 4.18+
Signed-off-by: Maged Mokhtar <mmokhtar@petasan.org>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maged Mokhtar 2019-10-23 22:41:17 +02:00 committed by Greg Kroah-Hartman
parent 7c07d02673
commit 10b9bf59ba
1 changed files with 2 additions and 1 deletions
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drivers/md/dm-writecache.c
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@ -1223,7 +1223,8 @@ 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);