The patch titled
Subject: mm: KSM: fix data type
has been added to the -mm tree. Its filename is
mm-ksm-fix-data-type.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-ksm-fix-data-type.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-ksm-fix-data-type.patch
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------------------------------------------------------
From: Zhansaya Bagdauletkyzy <zhansayabagdaulet@xxxxxxxxx>
Subject: 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@xxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/ksm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/mm/ksm.c~mm-ksm-fix-data-type
+++ a/mm/ksm.c
@@ -259,7 +259,7 @@ static unsigned long ksm_stable_node_cha
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 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;
_
Patches currently in -mm which might be from zhansayabagdaulet@xxxxxxxxx are
selftests-vm-add-ksm-merge-test.patch
selftests-vm-add-ksm-unmerge-test.patch
selftests-vm-add-ksm-zero-page-merging-test.patch
selftests-vm-add-ksm-merging-across-nodes-test.patch
selftests-vm-add-ksm-merging-time-test.patch
selftests-vm-add-cow-time-test-for-ksm-pages.patch
mm-ksm-fix-data-type.patch
