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authorJulien Grall <julien.grall@linaro.org>2015-06-17 17:28:07 +0300
committerDavid Vrabel <david.vrabel@citrix.com>2015-06-17 18:35:19 +0300
commitee4b7179fc9bf19fd22f9d17757a86582c40229e (patch)
tree33fbb11e033759cc17d758905936e0d2e949eec3 /drivers/block
parentdb26a68695ad22bed6ca0f9c14572afb807858a8 (diff)
downloadlinux-ee4b7179fc9bf19fd22f9d17757a86582c40229e.tar.xz
block/xen-blkfront: Remove invalid comment
Since commit b764915 "xen-blkfront: use a different scatterlist for each request", biovec has been replaced by scatterlist when copying back the data during a completion request.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: Julien Grall <julien.grall@citrix.com> Acked-by: Roger 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: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/xen-blkfront.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 5c72c2501627..60cf1d627d23 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -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(