From: Coly Li <colyli@suse.de>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Geoff Levand <geoff@infradead.org>,
Ilya Dryomov <idryomov@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>, Song Liu <song@kernel.org>,
Mike Snitzer <snitzer@redhat.com>,
Stefan Haberland <sth@linux.ibm.com>,
Jan Hoeppner <hoeppner@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Phillip Lougher <phillip@squashfs.org.uk>,
linux-block@vger.kernel.org, dm-devel@redhat.com,
linux-um@lists.infradead.org, ceph-devel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org,
linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH 09/15] bcache: use bvec_virt
Date: Thu, 5 Aug 2021 01:05:10 +0800 [thread overview]
Message-ID: <13eb9def-5db4-d776-2b5a-0096a0a2a681@suse.de> (raw)
In-Reply-To: <20210804095634.460779-10-hch@lst.de>
On 8/4/21 5:56 PM, Christoph Hellwig wrote:
> Use bvec_virt instead of open coding it. Note that the existing code is
> fine despite ignoring bv_offset as the bio is known to contain exactly
> one page from the page allocator per bio_vec.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Looks good to me.
Reviewed-by: Coly Li <colyli@suse.de>
Thanks.
Coly Li
> ---
> drivers/md/bcache/btree.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
> index 183a58c89377..0595559de174 100644
> --- a/drivers/md/bcache/btree.c
> +++ b/drivers/md/bcache/btree.c
> @@ -378,7 +378,7 @@ static void do_btree_node_write(struct btree *b)
> struct bvec_iter_all iter_all;
>
> bio_for_each_segment_all(bv, b->bio, iter_all) {
> - memcpy(page_address(bv->bv_page), addr, PAGE_SIZE);
> + memcpy(bvec_virt(bv), addr, PAGE_SIZE);
> addr += PAGE_SIZE;
> }
>
next prev parent reply other threads:[~2021-08-04 17:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-04 9:56 add a bvec_virt helper Christoph Hellwig
2021-08-04 9:56 ` [PATCH 01/15] bvec: " Christoph Hellwig
2021-08-05 6:19 ` Chaitanya Kulkarni
2021-08-06 2:38 ` Martin K. Petersen
2021-08-04 9:56 ` [PATCH 02/15] block: use bvec_virt in bio_integrity_{process,free} Christoph Hellwig
2021-08-05 6:19 ` Chaitanya Kulkarni
2021-08-06 2:38 ` Martin K. Petersen
2021-08-04 9:56 ` [PATCH 03/15] dm: make EBS depend on !HIGHMEM Christoph Hellwig
2021-08-04 9:56 ` [PATCH 04/15] dm-ebs: use bvec_virt Christoph Hellwig
2021-08-04 9:56 ` [PATCH 05/15] dm-integrity: " Christoph Hellwig
2021-08-04 9:56 ` [PATCH 06/15] squashfs: " Christoph Hellwig
2021-08-04 9:56 ` [PATCH 07/15] rbd: " Christoph Hellwig
2021-08-05 12:01 ` Jeff Layton
2021-08-04 9:56 ` [PATCH 08/15] virtio_blk: " Christoph Hellwig
2021-08-05 14:17 ` Stefan Hajnoczi
2021-08-04 9:56 ` [PATCH 09/15] bcache: " Christoph Hellwig
2021-08-04 17:05 ` Coly Li [this message]
2021-08-04 9:56 ` [PATCH 10/15] sd: " Christoph Hellwig
2021-08-05 16:31 ` [dm-devel] " Bart Van Assche
2021-08-06 2:43 ` Martin K. Petersen
2021-08-04 9:56 ` [PATCH 11/15] ubd: " Christoph Hellwig
2021-08-04 10:10 ` Anton Ivanov
2021-08-04 9:56 ` [PATCH 12/15] ps3vram: " Christoph Hellwig
2021-08-04 9:56 ` [PATCH 13/15] dasd: " Christoph Hellwig
2021-08-04 20:20 ` Stefan Haberland
2021-08-04 9:56 ` [PATCH 14/15] dcssblk: " Christoph Hellwig
2021-08-04 9:56 ` [PATCH 15/15] nvme: " Christoph Hellwig
2021-08-04 14:33 ` Keith Busch
2021-08-16 12:38 ` add a bvec_virt helper Christoph Hellwig
2021-08-16 16:51 ` Jens Axboe
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