dm: switch to using blk_queue_write_cache()

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index f9e8f0b..4b1ffc0 100644 (file)
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1506,7 +1506,7 @@ static bool dm_table_supports_discards(struct dm_table *t)
 void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
                               struct queue_limits *limits)
 {
-       unsigned flush = 0;
+       bool wc = false, fua = false;
 
        /*
         * Copy table's limits to the DM device's request_queue
@@ -1519,11 +1519,11 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
                queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
 
        if (dm_table_supports_flush(t, REQ_FLUSH)) {
-               flush |= REQ_FLUSH;
+               wc = true;
                if (dm_table_supports_flush(t, REQ_FUA))
-                       flush |= REQ_FUA;
+                       fua = true;
        }
-       blk_queue_flush(q, flush);
+       blk_queue_write_cache(q, wc, fua);
 
        if (!dm_table_discard_zeroes_data(t))
                q->limits.discard_zeroes_data = 0;