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| author | Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com> | 2021-09-02 15:00:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-03 09:58:18 -0700 |
| commit | 584ff0dfb09a81e1addf02543f7c1fa8e71ce6d2 (patch) | |
| tree | ece22b8c9f115f936bdd926f6179f0260dd6ae70 | |
| parent | 82e717ad35018ce59ba1b66297dfd898b2a1a03f (diff) | |
| download | linux-stable-584ff0dfb09a81e1addf02543f7c1fa8e71ce6d2.tar.gz linux-stable-584ff0dfb09a81e1addf02543f7c1fa8e71ce6d2.tar.bz2 linux-stable-584ff0dfb09a81e1addf02543f7c1fa8e71ce6d2.zip | |
mm: KSM: fix data type
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 its type to unsigned int.
Link: https://lkml.kernel.org/r/20210806111351.GA71845@asus
Signed-off-by: Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/ksm.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -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; |