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authorAlexey Dobriyan <adobriyan@gmail.com>2020-12-14 19:15:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 12:13:47 -0800
commitdfefd226b0bf7c435a58d75a0ce2f9273b9825f6 (patch)
treeb1e67e77d999feab9070ef8952c169958a3b4fdb /mm
parent01359eb2013b4b1e87b22db0f532c2e0b7aee001 (diff)
mm: cleanup kstrto*() usage
Range checks can folded into proper conversion function. kstrto*() exist for all arithmetic types. Link: https://lkml.kernel.org/r/20201122123759.GC92364@localhost.localdomain Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/khugepaged.c18
-rw-r--r--mm/ksm.c18
2 files changed, 18 insertions, 18 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index ec92ae7cec2c..ad316d2e1fee 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -133,11 +133,11 @@ static ssize_t scan_sleep_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;
khugepaged_scan_sleep_millisecs = msecs;
@@ -161,11 +161,11 @@ static ssize_t alloc_sleep_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;
khugepaged_alloc_sleep_millisecs = msecs;
@@ -188,11 +188,11 @@ static ssize_t pages_to_scan_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
+ unsigned int pages;
int err;
- unsigned long pages;
- err = kstrtoul(buf, 10, &pages);
- if (err || !pages || pages > UINT_MAX)
+ err = kstrtouint(buf, 10, &pages);
+ if (err || !pages)
return -EINVAL;
khugepaged_pages_to_scan = pages;
diff --git a/mm/ksm.c b/mm/ksm.c
index 4f950c70fbcf..9694ee2c71de 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2840,11 +2840,11 @@ static ssize_t sleep_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_thread_sleep_millisecs = msecs;
@@ -2864,11 +2864,11 @@ static ssize_t pages_to_scan_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
+ unsigned int nr_pages;
int err;
- unsigned long nr_pages;
- err = kstrtoul(buf, 10, &nr_pages);
- if (err || nr_pages > UINT_MAX)
+ err = kstrtouint(buf, 10, &nr_pages);
+ if (err)
return -EINVAL;
ksm_thread_pages_to_scan = nr_pages;
@@ -2886,11 +2886,11 @@ static ssize_t run_show(struct kobject *kobj, struct kobj_attribute *attr,
static ssize_t run_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
+ unsigned int flags;
int err;
- unsigned long flags;
- err = kstrtoul(buf, 10, &flags);
- if (err || flags > UINT_MAX)
+ err = kstrtouint(buf, 10, &flags);
+ if (err)
return -EINVAL;
if (flags > KSM_RUN_UNMERGE)
return -EINVAL;