From 22f17952c7873a427e6e4280d723c0f686d75fb9 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 19 Jul 2018 21:42:13 -0400 Subject: [PATCH] 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 Signed-off-by: Jens Axboe --- block/blk-rq-qos.c | 8 ++++---- block/blk-rq-qos.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c index 5134b24482f6..0005dfd568dd 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); } diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h index d5e2f68fe41e..32b02efbfa66 100644 --- a/block/blk-rq-qos.h +++ b/block/blk-rq-qos.h @@ -93,7 +93,7 @@ static inline void rq_qos_del(struct request_queue *q, struct rq_qos *rqos) } } -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); void rq_depth_scale_up(struct rq_depth *rqd); void rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle); bool rq_depth_calc_max_depth(struct rq_depth *rqd); -- 2.30.2