On Tue, Feb 22, 2022 at 04:51:48PM +0100, Christoph Hellwig wrote:
> Using local kmaps slightly reduces the chances to stray writes, and
> the bvec interface cleans up the code a little bit.
> 
> Signed-off-by: Christoph Hellwig <h...@lst.de>
> ---
>  drivers/block/aoe/aoecmd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
> index cc11f89a0928f..093996961d452 100644
> --- a/drivers/block/aoe/aoecmd.c
> +++ b/drivers/block/aoe/aoecmd.c
> @@ -1018,7 +1018,7 @@ bvcpy(struct sk_buff *skb, struct bio *bio, struct 
> bvec_iter iter, long cnt)
>       iter.bi_size = cnt;
>  
>       __bio_for_each_segment(bv, bio, iter, iter) {
> -             char *p = kmap_atomic(bv.bv_page) + bv.bv_offset;
> +             char *p = bvec_kmap_local(&bv);
>               skb_copy_bits(skb, soff, p, bv.bv_len);
>               kunmap_atomic(p);

kunmap_local()

Ira

>               soff += bv.bv_len;
> -- 
> 2.30.2
> 
> 

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