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mm: mmap_lock: use DECLARE_EVENT_CLASS and DEFINE_EVENT_FN

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By using DECLARE_EVENT_CLASS and TRACE_EVENT_FN, we can save a lot of
space from duplicate code.

Link: https://lkml.kernel.org/r/20211009071243.70286-1-ligang.bdlg@bytedance.com
Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Gang Li 2021-11-05 13:39:16 -07:00 committed by Linus Torvalds
parent f595e3411d
commit 627ae8284f
1 changed files with 12 additions and 32 deletions
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44
include/trace/events/mmap_lock.h
View file

@ -13,7 +13,7 @@ struct mm_struct;
extern int trace_mmap_lock_reg(void);
extern void trace_mmap_lock_unreg(void);
TRACE_EVENT_FN(mmap_lock_start_locking,
DECLARE_EVENT_CLASS(mmap_lock,
TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
@ -36,11 +36,19 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
__entry->mm,
__get_str(memcg_path),
__entry->write ? "true" : "false"
),
trace_mmap_lock_reg, trace_mmap_lock_unreg
)
);
#define DEFINE_MMAP_LOCK_EVENT(name) \
DEFINE_EVENT_FN(mmap_lock, name, \
TP_PROTO(struct mm_struct *mm, const char *memcg_path, \
bool write), \
TP_ARGS(mm, memcg_path, write), \
trace_mmap_lock_reg, trace_mmap_lock_unreg)
DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking);
DEFINE_MMAP_LOCK_EVENT(mmap_lock_released);
TRACE_EVENT_FN(mmap_lock_acquire_returned,
TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write,
@ -73,34 +81,6 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
trace_mmap_lock_reg, trace_mmap_lock_unreg
);
TRACE_EVENT_FN(mmap_lock_released,
TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
TP_ARGS(mm, memcg_path, write),
TP_STRUCT__entry(
__field(struct mm_struct *, mm)
__string(memcg_path, memcg_path)
__field(bool, write)
),
TP_fast_assign(
__entry->mm = mm;
__assign_str(memcg_path, memcg_path);
__entry->write = write;
),
TP_printk(
"mm=%p memcg_path=%s write=%s",
__entry->mm,
__get_str(memcg_path),
__entry->write ? "true" : "false"
),
trace_mmap_lock_reg, trace_mmap_lock_unreg
);
#endif /* _TRACE_MMAP_LOCK_H */
/* This part must be outside protection */