From: Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com>
To: akpm@linux-foundation.org
Cc: tyhicks@linux.microsoft.com, pasha.tatashin@soleen.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] mm: KSM: fix data type
Date: Fri, 16 Jul 2021 00:01:03 +0600 [thread overview]
Message-ID: <3610f5373bb12ea04e025bafbf8350f75c0dbf4b.1626371112.git.zhansayabagdaulet@gmail.com> (raw)
In-Reply-To: <cover.1626371112.git.zhansayabagdaulet@gmail.com>
ksm_stable_node_chains_prune_millisecs is declared as int, but in
stable__node_chains_prune_millisecs_store(), it can store values up to
UINT_MAX. Change the variable type to unsigned int.
Signed-off-by: Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com>
---
mm/ksm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mm/ksm.c b/mm/ksm.c
index 057d0c245bf4..2e4bd7662e52 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -259,7 +259,7 @@ static unsigned long ksm_stable_node_chains;
static unsigned long ksm_stable_node_dups;
/* Delay in pruning stale stable_node_dups in the stable_node_chains */
-static int ksm_stable_node_chains_prune_millisecs = 2000;
+static unsigned int ksm_stable_node_chains_prune_millisecs = 2000;
/* Maximum number of page slots sharing a stable node */
static int ksm_max_page_sharing = 256;
@@ -3105,11 +3105,11 @@ stable_node_chains_prune_millisecs_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
- unsigned long msecs;
+ unsigned int msecs;
int err;
- err = kstrtoul(buf, 10, &msecs);
- if (err || msecs > UINT_MAX)
+ err = kstrtouint(buf, 10, &msecs);
+ if (err)
return -EINVAL;
ksm_stable_node_chains_prune_millisecs = msecs;
--
2.25.1
next prev parent reply other threads:[~2021-07-15 18:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 18:00 [PATCH 0/2] mm: KSM: fix data types Zhansaya Bagdauletkyzy
2021-07-15 18:01 ` [PATCH 1/2] mm: KSM: fix ksm_run data type Zhansaya Bagdauletkyzy
2021-07-15 18:10 ` Pavel Tatashin
2021-07-15 18:10 ` Pavel Tatashin
2021-07-15 18:17 ` Matthew Wilcox
2021-07-15 18:21 ` Pavel Tatashin
2021-07-15 18:21 ` Pavel Tatashin
2021-07-15 18:30 ` Matthew Wilcox
2021-07-15 18:57 ` Pavel Tatashin
2021-07-15 18:57 ` Pavel Tatashin
2021-07-15 19:06 ` Pavel Tatashin
2021-07-15 19:06 ` Pavel Tatashin
2021-07-15 18:01 ` Zhansaya Bagdauletkyzy [this message]
2021-07-15 18:10 ` [PATCH 2/2] mm: KSM: fix " Pavel Tatashin
2021-07-15 18:10 ` Pavel Tatashin
2021-07-16 4:42 ` Zhansaya Bagdauletkyzy
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