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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_MM_EVENT_H
#define _LINUX_MM_EVENT_H
/*
* These enums are exposed to userspace via the ftrace trace_pipe_raw endpoint
* and are an ABI. Userspace tools depend on them.
*/
enum mm_event_type {
MM_MIN_FAULT = 0,
MM_MAJ_FAULT = 1,
MM_READ_IO = 2,
MM_COMPACTION = 3,
MM_RECLAIM = 4,
MM_SWP_FAULT = 5,
MM_KERN_ALLOC = 6,
BLK_READ_SUBMIT_BIO = 7,
UFS_READ_QUEUE_CMD = 8,
UFS_READ_SEND_CMD = 9,
UFS_READ_COMPL_CMD = 10,
F2FS_READ_DATA = 11,
MM_TYPE_NUM = 12,
};
struct mm_event_task {
unsigned int count;
unsigned int max_lat;
u64 accm_lat;
} __attribute__ ((packed));
struct mm_event_vmstat {
unsigned long free;
unsigned long file;
unsigned long anon;
unsigned long ion;
unsigned long slab;
unsigned long ws_refault;
unsigned long ws_activate;
unsigned long mapped;
unsigned long pgin;
unsigned long pgout;
unsigned long swpin;
unsigned long swpout;
unsigned long reclaim_steal;
unsigned long reclaim_scan;
unsigned long compact_scan;
};
#ifdef CONFIG_MM_EVENT_STAT
void mm_event_task_init(struct task_struct *tsk);
void mm_event_record(enum mm_event_type event, unsigned long s_jiffies);
void mm_event_count(enum mm_event_type event, int count);
#else
static inline void mm_event_task_init(struct task_struct *tsk) {}
static inline void mm_event_record(enum mm_event_type event, unsigned long s_jiffies) {}
static inline void mm_event_count(enum mm_event_type event, int count) {}
#endif /* _LINUX_MM_EVENT_H */
#endif
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