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authorChristoph Hellwig <hch@lst.de>2022-04-15 07:52:43 +0300
committerJens Axboe <axboe@kernel.dk>2022-04-18 04:49:59 +0300
commit08e688fdb8f7e862092ae64cee20bc8b463d1046 (patch)
tree8c85516d2478db6988a5d73b1032622a2897a705 /drivers/block/xen-blkback
parent10f0d2a517796b8f6dc04fb0cc3e49003ae6b0bc (diff)
downloadlinux-08e688fdb8f7e862092ae64cee20bc8b463d1046.tar.xz
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/xen-blkback')
-rw-r--r--drivers/block/xen-blkback/xenbus.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index f09040435e2e..8b691fe50475 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -517,7 +517,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
vbd->type |= VDISK_REMOVABLE;
q = bdev_get_queue(bdev);
- if (q && test_bit(QUEUE_FLAG_WC, &q->queue_flags))
+ if (bdev_write_cache(bdev))
vbd->flush_support = true;
if (q && blk_queue_secure_erase(q))