From: Keith Busch <keith.busch@intel.com>
Date: Wed, 10 Feb 2016 23:52:47 +0000 (-0700)
Subject: block: Initialize max_dev_sectors to 0
X-Git-Tag: v4.1.12-92~105^2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f1f97765cdaeb36e8d8e279605ad856101b4ac76;p=users%2Fjedix%2Flinux-maple.git

block: Initialize max_dev_sectors to 0

Orabug: 23615929

(commit 5f009d3f8e6685fe8c6215082c1696a08b411220 of upstream)
The new queue limit is not used by the majority of block drivers, and
should be initialized to 0 for the driver's requested settings to be used.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
---

diff --git a/block/blk-settings.c b/block/blk-settings.c
index dc2e66e32b66..43f6eda76856 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -112,8 +112,8 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->max_integrity_segments = 0;
 	lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
 	lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
-	lim->max_sectors = lim->max_dev_sectors = lim->max_hw_sectors =
-		BLK_SAFE_MAX_SECTORS;
+	lim->max_sectors = lim->max_hw_sectors = BLK_SAFE_MAX_SECTORS;
+	lim->max_dev_sectors = 0;
 	lim->chunk_sectors = 0;
 	lim->max_write_same_sectors = 0;
 	lim->max_discard_sectors = 0;