include/trace/events/timestamp.h

Source file repositories/reference/linux-study-clean/include/trace/events/timestamp.h

File Facts

System
Linux kernel
Corpus path
include/trace/events/timestamp.h
Extension
.h
Size
2990 bytes
Lines
125
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#undef TRACE_SYSTEM
#define TRACE_SYSTEM timestamp

#if !defined(_TRACE_TIMESTAMP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_TIMESTAMP_H

#include <linux/tracepoint.h>
#include <linux/fs.h>

#define CTIME_QUERIED_FLAGS \
	{ I_CTIME_QUERIED, "Q" }

DECLARE_EVENT_CLASS(ctime,
	TP_PROTO(struct inode *inode,
		 struct timespec64 *ctime),

	TP_ARGS(inode, ctime),

	TP_STRUCT__entry(
		__field(u64,		ino)
		__field(time64_t,	ctime_s)
		__field(dev_t,		dev)
		__field(u32,		ctime_ns)
		__field(u32,		gen)
	),

	TP_fast_assign(
		__entry->dev		= inode->i_sb->s_dev;
		__entry->ino		= inode->i_ino;
		__entry->gen		= inode->i_generation;
		__entry->ctime_s	= ctime->tv_sec;
		__entry->ctime_ns	= ctime->tv_nsec;
	),

	TP_printk("ino=%d:%d:%llu:%u ctime=%lld.%u",
		MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen,
		__entry->ctime_s, __entry->ctime_ns
	)
);

DEFINE_EVENT(ctime, inode_set_ctime_to_ts,
		TP_PROTO(struct inode *inode,
			 struct timespec64 *ctime),
		TP_ARGS(inode, ctime));

DEFINE_EVENT(ctime, ctime_xchg_skip,
		TP_PROTO(struct inode *inode,
			 struct timespec64 *ctime),
		TP_ARGS(inode, ctime));

TRACE_EVENT(ctime_ns_xchg,
	TP_PROTO(struct inode *inode,
		 u32 old,
		 u32 new,
		 u32 cur),

	TP_ARGS(inode, old, new, cur),

	TP_STRUCT__entry(
		__field(u64,		ino)
		__field(dev_t,		dev)
		__field(u32,		gen)
		__field(u32,		old)
		__field(u32,		new)
		__field(u32,		cur)
	),

	TP_fast_assign(
		__entry->dev		= inode->i_sb->s_dev;
		__entry->ino		= inode->i_ino;
		__entry->gen		= inode->i_generation;
		__entry->old		= old;
		__entry->new		= new;
		__entry->cur		= cur;
	),

	TP_printk("ino=%d:%d:%llu:%u old=%u:%s new=%u cur=%u:%s",
		MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen,
		__entry->old & ~I_CTIME_QUERIED,
		__print_flags(__entry->old & I_CTIME_QUERIED, "|", CTIME_QUERIED_FLAGS),
		__entry->new,
		__entry->cur & ~I_CTIME_QUERIED,
		__print_flags(__entry->cur & I_CTIME_QUERIED, "|", CTIME_QUERIED_FLAGS)
	)
);

TRACE_EVENT(fill_mg_cmtime,
	TP_PROTO(struct inode *inode,
		 struct timespec64 *ctime,
		 struct timespec64 *mtime),

Annotation

Implementation Notes