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Commit ee4b7179 authored by Julien Grall's avatar Julien Grall Committed by David Vrabel
Browse files

block/xen-blkfront: Remove invalid comment 



Since commit b7649158 "xen-blkfront: use a different scatterlist for each
request", biovec has been replaced by scatterlist when copying back the
data during a completion request.

Signed-off-by: default avatarJulien Grall <julien.grall@citrix.com>
Acked-by: default avatarRoger Pau Monné <roger.pau@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent db26a686

drivers/block/xen-blkfront.c

+0 −6
Original line number Diff line number Diff line
@@ -1056,12 +1056,6 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info, 
		s->req.u.indirect.nr_segments : s->req.u.rw.nr_segments;



	if (bret->operation == BLKIF_OP_READ && info->feature_persistent) {

		/*

		 * Copy the data received from the backend into the bvec.

		 * Since bv_offset can be different than 0, and bv_len different

		 * than PAGE_SIZE, we have to keep track of the current offset,

		 * to be sure we are copying the data from the right shared page.

		 */

		for_each_sg(s->sg, sg, nseg, i) {

			BUG_ON(sg->offset + sg->length > PAGE_SIZE);

			shared_data = kmap_atomic(