linux-kernel - [tip: sched/core] sched/debug: Correct printing for rq->nr

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Message-ID: <168372654853.404.17704354733934460594.tip-bot2@tip-bot2>
Date:   Wed, 10 May 2023 13:49:08 -0000
From:   tip-bot2 for 晏艳(采苓) 
        <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Yan Yan <yanyan.yan@...group.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: sched/core] sched/debug: Correct printing for rq->nr_uninterruptible

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     a6fcdd8d95f7486150b3faadfea119fc3dfc3b74
Gitweb:        https://git.kernel.org/tip/a6fcdd8d95f7486150b3faadfea119fc3dfc3b74
Author:        晏艳(采苓) <yanyan.yan@...group.com>
AuthorDate:    Sat, 06 May 2023 15:42:53 +08:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Mon, 08 May 2023 10:58:39 +02:00

sched/debug: Correct printing for rq->nr_uninterruptible

Commit e6fe3f422be1 ("sched: Make multiple runqueue task counters
32-bit") changed the type for rq->nr_uninterruptible from "unsigned
long" to "unsigned int", but left wrong cast print to
/sys/kernel/debug/sched/debug and to the console.

For example, nr_uninterruptible's value is fffffff7 with type
"unsigned int", (long)nr_uninterruptible shows 4294967287 while
(int)nr_uninterruptible prints -9. So using int cast fixes wrong
printing.

Signed-off-by: Yan Yan <yanyan.yan@...group.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20230506074253.44526-1-yanyan.yan@antgroup.com
---
 kernel/sched/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 0b2340a..066ff1c 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -777,7 +777,7 @@ static void print_cpu(struct seq_file *m, int cpu)
 #define P(x)								\
 do {									\
 	if (sizeof(rq->x) == 4)						\
-		SEQ_printf(m, "  .%-30s: %ld\n", #x, (long)(rq->x));	\
+		SEQ_printf(m, "  .%-30s: %d\n", #x, (int)(rq->x));	\
 	else								\
 		SEQ_printf(m, "  .%-30s: %Ld\n", #x, (long long)(rq->x));\
 } while (0)