linux-kernel - [PATCH 1/3] xen-blkfront: fix places not updated after introducing 64KB page granularity

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Date:	Fri, 15 Jul 2016 17:31:47 +0800
From:	Bob Liu <bob.liu@...cle.com>
To:	linux-kernel@...r.kernel.org
Cc:	xen-devel@...ts.xenproject.org, konrad.wilk@...cle.com,
	roger.pau@...rix.com, jgross@...e.com, Bob Liu <bob.liu@...cle.com>
Subject: [PATCH 1/3] xen-blkfront: fix places not updated after introducing 64KB page granularity

Two places didn't get updated when 64KB page granularity was introduced, this
patch fix them.

Signed-off-by: Bob Liu <bob.liu@...cle.com>
---
 drivers/block/xen-blkfront.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index fcc5b4e..032fc94 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1321,7 +1321,7 @@ free_shadow:
 			rinfo->ring_ref[i] = GRANT_INVALID_REF;
 		}
 	}
-	free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * PAGE_SIZE));
+	free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * XEN_PAGE_SIZE));
 	rinfo->ring.sring = NULL;
 
 	if (rinfo->irq)
@@ -2013,7 +2013,7 @@ static int blkif_recover(struct blkfront_info *info)
 
 	blkfront_gather_backend_features(info);
 	segs = info->max_indirect_segments ? : BLKIF_MAX_SEGMENTS_PER_REQUEST;
-	blk_queue_max_segments(info->rq, segs);
+	blk_queue_max_segments(info->rq, segs / GRANTS_PER_PSEG);
 
 	for (r_index = 0; r_index < info->nr_rings; r_index++) {
 		struct blkfront_ring_info *rinfo = &info->rinfo[r_index];
-- 
2.7.4