From: Dan Williams <dan.j.williams@intel.com>
Date: Sat, 16 May 2015 16:28:50 +0000 (-0400)
Subject: libnvdimm, pmem: fix up max_hw_sectors
X-Git-Tag: v4.1.12-92~18^2^2~192
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=4d7fd769ab0fce2a2f59ec07ba4f8de1bea99e9f;p=users%2Fjedix%2Flinux-maple.git

libnvdimm, pmem: fix up max_hw_sectors

Orabug: 22913653

There is no hardware limit to enforce on the size of the i/o that can be passed
to an nvdimm block device, so set it to UINT_MAX.

Reviewed-by: Vishal Verma <vishal.l.verma@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
(cherry picked from commit 43d3fa3a0491168ad769d20d5cbae45492509d43)
Signed-off-by: Dan Duval <dan.duval@oracle.com>
---

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 7346054bccbb6..d29a42adb95a8 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -167,7 +167,7 @@ static int pmem_attach_disk(struct nd_namespace_common *ndns,
 		return -ENOMEM;
 
 	blk_queue_make_request(pmem->pmem_queue, pmem_make_request);
-	blk_queue_max_hw_sectors(pmem->pmem_queue, 1024);
+	blk_queue_max_hw_sectors(pmem->pmem_queue, UINT_MAX);
 	blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY);
 
 	disk = alloc_disk(0);