include/trace/events/erofs.h

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

File Facts

System
Linux kernel
Corpus path
include/trace/events/erofs.h
Extension
.h
Size
5330 bytes
Lines
217
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 erofs

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

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

struct erofs_map_blocks;

#define show_dev(dev)		MAJOR(dev), MINOR(dev)
#define show_dev_nid(entry)	show_dev(entry->dev), entry->nid

#define show_file_type(type)						\
	__print_symbolic(type,						\
		{ 0,		"FILE" },				\
		{ 1,		"DIR" })

#define show_map_flags(flags) __print_flags(flags, "|",	\
	{ EROFS_GET_BLOCKS_FIEMAP,	"FIEMAP" },	\
	{ EROFS_GET_BLOCKS_READMORE,	"READMORE" },	\
	{ EROFS_GET_BLOCKS_FINDTAIL,	"FINDTAIL" })

#define show_mflags(flags) __print_flags(flags, "",	\
	{ EROFS_MAP_MAPPED,		"M" },		\
	{ EROFS_MAP_META,		"I" },		\
	{ EROFS_MAP_PARTIAL_MAPPED,	"T" },		\
	{ EROFS_MAP_PARTIAL_REF,	"P" },		\
	{ EROFS_MAP_FRAGMENT,		"R" })

TRACE_EVENT(erofs_lookup,

	TP_PROTO(struct inode *dir, struct dentry *dentry, unsigned int flags),

	TP_ARGS(dir, dentry, flags),

	TP_STRUCT__entry(
		__field(dev_t,		dev	)
		__field(erofs_nid_t,	nid	)
		__string(name,		dentry->d_name.name	)
		__field(unsigned int,	flags	)
	),

	TP_fast_assign(
		__entry->dev	= dir->i_sb->s_dev;
		__entry->nid	= EROFS_I(dir)->nid;
		__assign_str(name);
		__entry->flags	= flags;
	),

	TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x",
		show_dev_nid(__entry),
		__get_str(name),
		__entry->flags)
);

TRACE_EVENT(erofs_fill_inode,
	TP_PROTO(struct inode *inode),
	TP_ARGS(inode),

	TP_STRUCT__entry(
		__field(dev_t,		dev	)
		__field(erofs_nid_t,	nid	)
		__field(erofs_blk_t,	blkaddr )
		__field(unsigned int,	ofs	)
	),

	TP_fast_assign(
		__entry->dev		= inode->i_sb->s_dev;
		__entry->nid		= EROFS_I(inode)->nid;
		__entry->blkaddr	= erofs_blknr(inode->i_sb, erofs_iloc(inode));
		__entry->ofs		= erofs_blkoff(inode->i_sb, erofs_iloc(inode));
	),

	TP_printk("dev = (%d,%d), nid = %llu, blkaddr %llu ofs %u",
		  show_dev_nid(__entry),
		  __entry->blkaddr, __entry->ofs)
);

TRACE_EVENT(erofs_read_folio,

	TP_PROTO(struct inode *inode, struct folio *folio, bool raw),

	TP_ARGS(inode, folio, raw),

	TP_STRUCT__entry(
		__field(dev_t,		dev	)
		__field(erofs_nid_t,    nid     )
		__field(int,		dir	)

Annotation

Implementation Notes