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/* SPDX-License-Identifier: GPL-2.0-or-later */
/* CacheFiles tracepoints
*
* Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cachefiles
#if !defined(_TRACE_CACHEFILES_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_CACHEFILES_H
#include <linux/tracepoint.h>
/*
* Define enums for tracing information.
*/
#ifndef __CACHEFILES_DECLARE_TRACE_ENUMS_ONCE_ONLY
#define __CACHEFILES_DECLARE_TRACE_ENUMS_ONCE_ONLY
enum cachefiles_error_trace {
cachefiles_trace_fallocate_error,
cachefiles_trace_getxattr_error,
cachefiles_trace_link_error,
cachefiles_trace_lookup_error,
cachefiles_trace_mkdir_error,
cachefiles_trace_notify_change_error,
cachefiles_trace_open_error,
cachefiles_trace_read_error,
cachefiles_trace_remxattr_error,
cachefiles_trace_rename_error,
cachefiles_trace_seek_error,
cachefiles_trace_setxattr_error,
cachefiles_trace_statfs_error,
cachefiles_trace_tmpfile_error,
cachefiles_trace_trunc_error,
cachefiles_trace_unlink_error,
cachefiles_trace_write_error,
};
#endif
/*
* Define enum -> string mappings for display.
*/
#define cachefiles_error_traces \
EM(cachefiles_trace_fallocate_error, "fallocate") \
EM(cachefiles_trace_getxattr_error, "getxattr") \
EM(cachefiles_trace_link_error, "link") \
EM(cachefiles_trace_lookup_error, "lookup") \
EM(cachefiles_trace_mkdir_error, "mkdir") \
EM(cachefiles_trace_notify_change_error, "notify_change") \
EM(cachefiles_trace_open_error, "open") \
EM(cachefiles_trace_read_error, "read") \
EM(cachefiles_trace_remxattr_error, "remxattr") \
EM(cachefiles_trace_rename_error, "rename") \
EM(cachefiles_trace_seek_error, "seek") \
EM(cachefiles_trace_setxattr_error, "setxattr") \
EM(cachefiles_trace_statfs_error, "statfs") \
EM(cachefiles_trace_tmpfile_error, "tmpfile") \
EM(cachefiles_trace_trunc_error, "trunc") \
EM(cachefiles_trace_unlink_error, "unlink") \
E_(cachefiles_trace_write_error, "write")
/*
* Export enum symbols via userspace.
*/
#undef EM
#undef E_
#define EM(a, b) TRACE_DEFINE_ENUM(a);
#define E_(a, b) TRACE_DEFINE_ENUM(a);
cachefiles_error_traces;
/*
* Now redefine the EM() and E_() macros to map the enums to the strings that
* will be printed in the output.
*/
#undef EM
#undef E_
#define EM(a, b) { a, b },
#define E_(a, b) { a, b }
TRACE_EVENT(cachefiles_mark_active,
TP_PROTO(struct cachefiles_object *obj,
struct inode *inode),
TP_ARGS(obj, inode),
/* Note that obj may be NULL */
TP_STRUCT__entry(
__field(unsigned int, obj )
__field(ino_t, inode )
),
TP_fast_assign(
__entry->obj = obj ? obj->debug_id : 0;
__entry->inode = inode->i_ino;
),
TP_printk("o=%08x i=%lx",
__entry->obj, __entry->inode)
);
TRACE_EVENT(cachefiles_mark_inactive,
TP_PROTO(struct cachefiles_object *obj,
struct inode *inode),
TP_ARGS(obj, inode),
/* Note that obj may be NULL */
TP_STRUCT__entry(
__field(unsigned int, obj )
__field(ino_t, inode )
),
TP_fast_assign(
__entry->obj = obj ? obj->debug_id : 0;
__entry->inode = inode->i_ino;
),
TP_printk("o=%08x i=%lx",
__entry->obj, __entry->inode)
);
TRACE_EVENT(cachefiles_vfs_error,
TP_PROTO(struct cachefiles_object *obj, struct inode *backer,
int error, enum cachefiles_error_trace where),
TP_ARGS(obj, backer, error, where),
TP_STRUCT__entry(
__field(unsigned int, obj )
__field(unsigned int, backer )
__field(enum cachefiles_error_trace, where )
__field(short, error )
),
TP_fast_assign(
__entry->obj = obj ? obj->debug_id : 0;
__entry->backer = backer->i_ino;
__entry->error = error;
__entry->where = where;
),
TP_printk("o=%08x b=%08x %s e=%d",
__entry->obj,
__entry->backer,
__print_symbolic(__entry->where, cachefiles_error_traces),
__entry->error)
);
TRACE_EVENT(cachefiles_io_error,
TP_PROTO(struct cachefiles_object *obj, struct inode *backer,
int error, enum cachefiles_error_trace where),
TP_ARGS(obj, backer, error, where),
TP_STRUCT__entry(
__field(unsigned int, obj )
__field(unsigned int, backer )
__field(enum cachefiles_error_trace, where )
__field(short, error )
),
TP_fast_assign(
__entry->obj = obj ? obj->debug_id : 0;
__entry->backer = backer->i_ino;
__entry->error = error;
__entry->where = where;
),
TP_printk("o=%08x b=%08x %s e=%d",
__entry->obj,
__entry->backer,
__print_symbolic(__entry->where, cachefiles_error_traces),
__entry->error)
);
#endif /* _TRACE_CACHEFILES_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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