mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 21:51:40 +00:00
772c15e5ad
When there are huge number of DAMON regions that specific scheme actions
are tried to be applied, directories and files under 'tried_regions'
scheme directory could waste some memory. Add another special input
keyword ('clear_schemes_tried_regions') for 'state' file of each kdamond
sysfs directory that can be used for cleanup of the 'tried_regions'
sub-directories.
[sj@kernel.org: skip regions clearing if the scheme directory was removed]
Link: https://lkml.kernel.org/r/20221114182954.4745-3-sj@kernel.org
Link: https://lkml.kernel.org/r/20221101220328.95765-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Common Primitives for DAMON Sysfs Interface
|
|
*
|
|
* Author: SeongJae Park <sj@kernel.org>
|
|
*/
|
|
|
|
#include <linux/damon.h>
|
|
#include <linux/kobject.h>
|
|
|
|
extern struct mutex damon_sysfs_lock;
|
|
|
|
struct damon_sysfs_ul_range {
|
|
struct kobject kobj;
|
|
unsigned long min;
|
|
unsigned long max;
|
|
};
|
|
|
|
struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
|
|
unsigned long min,
|
|
unsigned long max);
|
|
void damon_sysfs_ul_range_release(struct kobject *kobj);
|
|
|
|
extern struct kobj_type damon_sysfs_ul_range_ktype;
|
|
|
|
/*
|
|
* schemes directory
|
|
*/
|
|
|
|
struct damon_sysfs_schemes {
|
|
struct kobject kobj;
|
|
struct damon_sysfs_scheme **schemes_arr;
|
|
int nr;
|
|
};
|
|
|
|
struct damon_sysfs_schemes *damon_sysfs_schemes_alloc(void);
|
|
void damon_sysfs_schemes_rm_dirs(struct damon_sysfs_schemes *schemes);
|
|
|
|
extern struct kobj_type damon_sysfs_schemes_ktype;
|
|
|
|
int damon_sysfs_set_schemes(struct damon_ctx *ctx,
|
|
struct damon_sysfs_schemes *sysfs_schemes);
|
|
|
|
void damon_sysfs_schemes_update_stats(
|
|
struct damon_sysfs_schemes *sysfs_schemes,
|
|
struct damon_ctx *ctx);
|
|
|
|
int damon_sysfs_schemes_update_regions_start(
|
|
struct damon_sysfs_schemes *sysfs_schemes,
|
|
struct damon_ctx *ctx);
|
|
|
|
int damon_sysfs_schemes_update_regions_stop(struct damon_ctx *ctx);
|
|
|
|
int damon_sysfs_schemes_clear_regions(
|
|
struct damon_sysfs_schemes *sysfs_schemes,
|
|
struct damon_ctx *ctx);
|