commit 22f17952c7873a427e6e4280d723c0f686d75fb9
author Josef Bacik <josef@toxicpanda.com> Thu Jul 19 21:42:13 2018 -0400
committer Jens Axboe <axboe@kernel.dk> Sun Jul 22 11:30:53 2018 -0600
tree ba3046530a5f3dadb9b3e66289027b49531a423c
parent 636620b66d5d4012c4a9c86206013964d3986c4f

blk-rq-qos: make depth comparisons unsigned

With the change to use UINT_MAX I broke the depth check as any value of
inflight (ie 0) would be less than (int)UINT_MAX.  Fix this by changing
everything to unsigned int to match the depth.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-rq-qos.c

diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
index 5134b24..0005dfd 100644
--- a/block/blk-rq-qos.c
+++ b/block/blk-rq-qos.c
@@ -4,12 +4,12 @@
  * Increment 'v', if 'v' is below 'below'. Returns true if we succeeded,
  * false if 'v' + 1 would be bigger than 'below'.
  */
-static bool atomic_inc_below(atomic_t *v, int below)
+static bool atomic_inc_below(atomic_t *v, unsigned int below)
 {
-	int cur = atomic_read(v);
+	unsigned int cur = atomic_read(v);
 
 	for (;;) {
-		int old;
+		unsigned int old;
 
 		if (cur >= below)
 			return false;
@@ -22,7 +22,7 @@ static bool atomic_inc_below(atomic_t *v, int below)
 	return true;
 }
 
-bool rq_wait_inc_below(struct rq_wait *rq_wait, int limit)
+bool rq_wait_inc_below(struct rq_wait *rq_wait, unsigned int limit)
 {
 	return atomic_inc_below(&rq_wait->inflight, limit);
 }