1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef __LINUX_VMPRESSURE_H
3 #define __LINUX_VMPRESSURE_H
4
5 #include <linux/mutex.h>
6 #include <linux/list.h>
7 #include <linux/workqueue.h>
8 #include <linux/gfp.h>
9 #include <linux/types.h>
10 #include <linux/cgroup.h>
11 #include <linux/eventfd.h>
12
13 struct vmpressure {
14 unsigned long scanned;
15 unsigned long reclaimed;
16
17 unsigned long tree_scanned;
18 unsigned long tree_reclaimed;
19 /* The lock is used to keep the scanne
20 spinlock_t sr_lock;
21
22 /* The list of vmpressure_event struct
23 struct list_head events;
24 /* Have to grab the lock on events tra
25 struct mutex events_lock;
26
27 struct work_struct work;
28 };
29
30 struct mem_cgroup;
31
32 #ifdef CONFIG_MEMCG
33 extern void vmpressure(gfp_t gfp, struct mem_c
34 unsigned long scanned,
35 extern void vmpressure_prio(gfp_t gfp, struct
36
37 extern void vmpressure_init(struct vmpressure
38 extern void vmpressure_cleanup(struct vmpressu
39 extern struct vmpressure *memcg_to_vmpressure(
40 extern struct mem_cgroup *vmpressure_to_memcg(
41 extern int vmpressure_register_event(struct me
42 struct ev
43 const cha
44 extern void vmpressure_unregister_event(struct
45 struct
46 #else
47 static inline void vmpressure(gfp_t gfp, struc
48 unsigned long sc
49 static inline void vmpressure_prio(gfp_t gfp,
50 int prio) {
51 #endif /* CONFIG_MEMCG */
52 #endif /* __LINUX_VMPRESSURE_H */
53
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