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Message-ID: <20221128154434.4177442-7-linan122@huawei.com>
Date: Mon, 28 Nov 2022 23:44:32 +0800
From: Li Nan <linan122@...wei.com>
To: <tj@...nel.org>, <josef@...icpanda.com>, <axboe@...nel.dk>
CC: <cgroups@...r.kernel.org>, <linux-block@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linan122@...wei.com>,
<yukuai3@...wei.com>, <yi.zhang@...wei.com>
Subject: [PATCH -next 6/8] blk-iocost: change div64_u64 to DIV64_U64_ROUND_UP in ioc_refresh_params()
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@...wei.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 a4fa17ebb2fa..03977385449f 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
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