[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <1431622863-28575-6-git-send-email-julien.grall@citrix.com>
Date: Thu, 14 May 2015 18:00:45 +0100
From: Julien Grall <julien.grall@...rix.com>
To: <xen-devel@...ts.xenproject.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <ian.campbell@...rix.com>,
<stefano.stabellini@...citrix.com>, <linux-kernel@...r.kernel.org>,
<tim@....org>, Julien Grall <julien.grall@...aro.org>,
Julien Grall <julien.grall@...rix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>,
David Vrabel <david.vrabel@...rix.com>,
Roger Pau Monné <roger.pau@...rix.com>
Subject: [RFC 05/23] block/xen-blkfront: Remove invalid comment
From: Julien Grall <julien.grall@...aro.org>
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request", biovec has been replaced by scatterlist when copying back the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@...rix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Roger Pau Monné <roger.pau@...rix.com>
---
drivers/block/xen-blkfront.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 5c72c25..60cf1d6 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(
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists