mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-03-22 07:27:12 +08:00
bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Common Code for DAMON Sysfs Interface
|
|
*
|
|
* Author: SeongJae Park <sj@kernel.org>
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include "sysfs-common.h"
|
|
|
|
DEFINE_MUTEX(damon_sysfs_lock);
|
|
|
|
/*
|
|
* unsigned long range directory
|
|
*/
|
|
|
|
struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
|
|
unsigned long min,
|
|
unsigned long max)
|
|
{
|
|
struct damon_sysfs_ul_range *range = kmalloc_obj(*range);
|
|
|
|
if (!range)
|
|
return NULL;
|
|
range->kobj = (struct kobject){};
|
|
range->min = min;
|
|
range->max = max;
|
|
|
|
return range;
|
|
}
|
|
|
|
static ssize_t min_show(struct kobject *kobj, struct kobj_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct damon_sysfs_ul_range *range = container_of(kobj,
|
|
struct damon_sysfs_ul_range, kobj);
|
|
|
|
return sysfs_emit(buf, "%lu\n", range->min);
|
|
}
|
|
|
|
static ssize_t min_store(struct kobject *kobj, struct kobj_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct damon_sysfs_ul_range *range = container_of(kobj,
|
|
struct damon_sysfs_ul_range, kobj);
|
|
unsigned long min;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 0, &min);
|
|
if (err)
|
|
return err;
|
|
|
|
range->min = min;
|
|
return count;
|
|
}
|
|
|
|
static ssize_t max_show(struct kobject *kobj, struct kobj_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct damon_sysfs_ul_range *range = container_of(kobj,
|
|
struct damon_sysfs_ul_range, kobj);
|
|
|
|
return sysfs_emit(buf, "%lu\n", range->max);
|
|
}
|
|
|
|
static ssize_t max_store(struct kobject *kobj, struct kobj_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct damon_sysfs_ul_range *range = container_of(kobj,
|
|
struct damon_sysfs_ul_range, kobj);
|
|
unsigned long max;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 0, &max);
|
|
if (err)
|
|
return err;
|
|
|
|
range->max = max;
|
|
return count;
|
|
}
|
|
|
|
void damon_sysfs_ul_range_release(struct kobject *kobj)
|
|
{
|
|
kfree(container_of(kobj, struct damon_sysfs_ul_range, kobj));
|
|
}
|
|
|
|
static struct kobj_attribute damon_sysfs_ul_range_min_attr =
|
|
__ATTR_RW_MODE(min, 0600);
|
|
|
|
static struct kobj_attribute damon_sysfs_ul_range_max_attr =
|
|
__ATTR_RW_MODE(max, 0600);
|
|
|
|
static struct attribute *damon_sysfs_ul_range_attrs[] = {
|
|
&damon_sysfs_ul_range_min_attr.attr,
|
|
&damon_sysfs_ul_range_max_attr.attr,
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(damon_sysfs_ul_range);
|
|
|
|
const struct kobj_type damon_sysfs_ul_range_ktype = {
|
|
.release = damon_sysfs_ul_range_release,
|
|
.sysfs_ops = &kobj_sysfs_ops,
|
|
.default_groups = damon_sysfs_ul_range_groups,
|
|
};
|
|
|