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627ae8284f
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>
87 lines
2 KiB
C
87 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mmap_lock
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#if !defined(_TRACE_MMAP_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MMAP_LOCK_H
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#include <linux/tracepoint.h>
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#include <linux/types.h>
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struct mm_struct;
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extern int trace_mmap_lock_reg(void);
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extern void trace_mmap_lock_unreg(void);
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DECLARE_EVENT_CLASS(mmap_lock,
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TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
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TP_ARGS(mm, memcg_path, write),
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TP_STRUCT__entry(
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__field(struct mm_struct *, mm)
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__string(memcg_path, memcg_path)
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__field(bool, write)
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),
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TP_fast_assign(
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__entry->mm = mm;
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__assign_str(memcg_path, memcg_path);
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__entry->write = write;
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),
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TP_printk(
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"mm=%p memcg_path=%s write=%s",
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__entry->mm,
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__get_str(memcg_path),
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__entry->write ? "true" : "false"
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)
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);
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#define DEFINE_MMAP_LOCK_EVENT(name) \
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DEFINE_EVENT_FN(mmap_lock, name, \
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TP_PROTO(struct mm_struct *mm, const char *memcg_path, \
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bool write), \
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TP_ARGS(mm, memcg_path, write), \
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trace_mmap_lock_reg, trace_mmap_lock_unreg)
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DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking);
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DEFINE_MMAP_LOCK_EVENT(mmap_lock_released);
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TRACE_EVENT_FN(mmap_lock_acquire_returned,
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TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write,
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bool success),
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TP_ARGS(mm, memcg_path, write, success),
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TP_STRUCT__entry(
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__field(struct mm_struct *, mm)
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__string(memcg_path, memcg_path)
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__field(bool, write)
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__field(bool, success)
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),
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TP_fast_assign(
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__entry->mm = mm;
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__assign_str(memcg_path, memcg_path);
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__entry->write = write;
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__entry->success = success;
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),
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TP_printk(
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"mm=%p memcg_path=%s write=%s success=%s",
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__entry->mm,
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__get_str(memcg_path),
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__entry->write ? "true" : "false",
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__entry->success ? "true" : "false"
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),
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trace_mmap_lock_reg, trace_mmap_lock_unreg
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);
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#endif /* _TRACE_MMAP_LOCK_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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