[PATCH 11/27] block: add a bdev_write_cache helper

[David Sterba]

On Wed, Apr 06, 2022 at 08:05:00AM +0200, Christoph Hellwig wrote:
> 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 at lst.de>
> ---
>  drivers/block/rnbd/rnbd-srv.c       | 2 +-
>  drivers/block/xen-blkback/xenbus.c  | 2 +-
>  drivers/target/target_core_iblock.c | 8 ++------

For

>  fs/btrfs/disk-io.c                  | 3 +--

Acked-by: David Sterba <dsterba at suse.com>