diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-15 06:52:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-18 03:49:59 +0200 |
| commit | 08e688fdb8f7e862092ae64cee20bc8b463d1046 (patch) | |
| tree | 8c85516d2478db6988a5d73b1032622a2897a705 /drivers/block/rnbd | |
| parent | block: add a bdev_nonrot helper (diff) | |
| download | linux-08e688fdb8f7e862092ae64cee20bc8b463d1046.tar.xz linux-08e688fdb8f7e862092ae64cee20bc8b463d1046.zip | |
block: add a bdev_write_cache helper
Add a helper to check the write cache flag based on the block_device
instead of having to poke into the block layer internal request_queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/rnbd')
| -rw-r--r-- | drivers/block/rnbd/rnbd-srv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c index f04df6294650..f8cc3c5fecb4 100644 --- a/drivers/block/rnbd/rnbd-srv.c +++ b/drivers/block/rnbd/rnbd-srv.c @@ -558,7 +558,7 @@ static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp, rsp->secure_discard = cpu_to_le16(rnbd_dev_get_secure_discard(rnbd_dev)); rsp->cache_policy = 0; - if (test_bit(QUEUE_FLAG_WC, &q->queue_flags)) + if (bdev_write_cache(rnbd_dev->bdev)) rsp->cache_policy |= RNBD_WRITEBACK; if (blk_queue_fua(q)) rsp->cache_policy |= RNBD_FUA; |