[PATCH -next v2 6/9] blk-iocost: change div64_u64 to DIV64_U64_ROUND_UP in ioc_refresh_params()

Li Nan
2022-11-30T13:01:01Z

vrate_min is calculated by DIV64_U64_ROUND_UP, but vrate_max is calculated
by div64_u64. Vrate_min may be 1 greater than vrate_max if the input
values min and max of cost.qos are equal.

Signed-off-by: Li Nan <linan122@huawei.com>
---
block/blk-iocost.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index f4a754b9d10f..2316ba93e7d6 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -926,7 +926,7 @@ static bool ioc_refresh_params(struct ioc *ioc, bool force)

ioc->vrate_min = DIV64_U64_ROUND_UP((u64)ioc->params.qos[QOS_MIN] *
VTIME_PER_USEC, MILLION);
- ioc->vrate_max = div64_u64((u64)ioc->params.qos[QOS_MAX] *
+ ioc->vrate_max = DIV64_U64_ROUND_UP((u64)ioc->params.qos[QOS_MAX] *
VTIME_PER_USEC, MILLION);

return true;
--
2.31.1