* [PATCH] block: genhd: use max() to improve inflight IO counting code
@ 2025-08-08 12:28 Akhilesh Patil
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From: Akhilesh Patil @ 2025-08-08 12:28 UTC (permalink / raw)
To: axboe, hare, hch, john.g.garry, yukuai3
Cc: yi.zhang, calvin, david, yukuai1, yi.zhang, yangerkun,
johnny.chenyi, linux-block, linux-kernel, akhileshpatilvnit,
skhan
Use max() macro in bdev_count_inflight_rw() while populating buffer of
read/write inflight block IO count. Use standard macro to
simplify the code without impacting functionality.
Fixes: c007062188d8 ("block: fix false warning in bdev_count_inflight_rw()")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202506272336.CvAqaAxB-lkp@intel.com/
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
---
block/genhd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/genhd.c b/block/genhd.c
index c26733f6324b..af74cb80eadb 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -147,8 +147,8 @@ static void bdev_count_inflight_rw(struct block_device *part,
* traversed and complete on a CPU that has not yet been traversed,
* causing the inflight number to be negative.
*/
- inflight[READ] = read > 0 ? read : 0;
- inflight[WRITE] = write > 0 ? write : 0;
+ inflight[READ] = max(read, 0);
+ inflight[WRITE] = max(write, 0);
}
/**
--
2.34.1
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