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1/* SPDX-License-Identifier: GPL-2.0 */2#undef TRACE_SYSTEM3#define TRACE_SYSTEM mmap_lock4 5#if !defined(_TRACE_MMAP_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)6#define _TRACE_MMAP_LOCK_H7 8#include <linux/tracepoint.h>9#include <linux/types.h>10 11struct mm_struct;12 13extern int trace_mmap_lock_reg(void);14extern void trace_mmap_lock_unreg(void);15 16DECLARE_EVENT_CLASS(mmap_lock,17 18 TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),19 20 TP_ARGS(mm, memcg_path, write),21 22 TP_STRUCT__entry(23 __field(struct mm_struct *, mm)24 __string(memcg_path, memcg_path)25 __field(bool, write)26 ),27 28 TP_fast_assign(29 __entry->mm = mm;30 __assign_str(memcg_path);31 __entry->write = write;32 ),33 34 TP_printk(35 "mm=%p memcg_path=%s write=%s",36 __entry->mm,37 __get_str(memcg_path),38 __entry->write ? "true" : "false"39 )40);41 42#define DEFINE_MMAP_LOCK_EVENT(name) \43 DEFINE_EVENT_FN(mmap_lock, name, \44 TP_PROTO(struct mm_struct *mm, const char *memcg_path, \45 bool write), \46 TP_ARGS(mm, memcg_path, write), \47 trace_mmap_lock_reg, trace_mmap_lock_unreg)48 49DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking);50DEFINE_MMAP_LOCK_EVENT(mmap_lock_released);51 52TRACE_EVENT_FN(mmap_lock_acquire_returned,53 54 TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write,55 bool success),56 57 TP_ARGS(mm, memcg_path, write, success),58 59 TP_STRUCT__entry(60 __field(struct mm_struct *, mm)61 __string(memcg_path, memcg_path)62 __field(bool, write)63 __field(bool, success)64 ),65 66 TP_fast_assign(67 __entry->mm = mm;68 __assign_str(memcg_path);69 __entry->write = write;70 __entry->success = success;71 ),72 73 TP_printk(74 "mm=%p memcg_path=%s write=%s success=%s",75 __entry->mm,76 __get_str(memcg_path),77 __entry->write ? "true" : "false",78 __entry->success ? "true" : "false"79 ),80 81 trace_mmap_lock_reg, trace_mmap_lock_unreg82);83 84#endif /* _TRACE_MMAP_LOCK_H */85 86/* This part must be outside protection */87#include <trace/define_trace.h>88