[PATCH v2 09/17] libnvdimm, pmem: fix up max_hw_sectors

From: Dan Williams
Date: Thu Jun 25 2015 - 05:43:44 EST


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@xxxxxxxxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
drivers/nvdimm/pmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 7346054bccbb..d29a42adb95a 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);

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