mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
a18feb5576
Add some tracepoints to fscache:
(*) fscache_cookie - Tracks a cookie's usage count.
(*) fscache_netfs - Logs registration of a network filesystem, including
the pointer to the cookie allocated.
(*) fscache_acquire - Logs cookie acquisition.
(*) fscache_relinquish - Logs cookie relinquishment.
(*) fscache_enable - Logs enablement of a cookie.
(*) fscache_disable - Logs disablement of a cookie.
(*) fscache_osm - Tracks execution of states in the object state machine.
and cachefiles:
(*) cachefiles_ref - Tracks a cachefiles object's usage count.
(*) cachefiles_lookup - Logs result of lookup_one_len().
(*) cachefiles_mkdir - Logs result of vfs_mkdir().
(*) cachefiles_create - Logs result of vfs_create().
(*) cachefiles_unlink - Logs calls to vfs_unlink().
(*) cachefiles_rename - Logs calls to vfs_rename().
(*) cachefiles_mark_active - Logs an object becoming active.
(*) cachefiles_wait_active - Logs a wait for an old object to be
destroyed.
(*) cachefiles_mark_inactive - Logs an object becoming inactive.
(*) cachefiles_mark_buried - Logs the burial of an object.
Signed-off-by: David Howells <dhowells@redhat.com>
325 lines
8.2 KiB
C
325 lines
8.2 KiB
C
/* CacheFiles tracepoints
|
|
*
|
|
* Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
#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_obj_ref_trace {
|
|
cachefiles_obj_put_wait_retry = fscache_obj_ref__nr_traces,
|
|
cachefiles_obj_put_wait_timeo,
|
|
cachefiles_obj_ref__nr_traces
|
|
};
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Define enum -> string mappings for display.
|
|
*/
|
|
#define cachefiles_obj_kill_traces \
|
|
EM(FSCACHE_OBJECT_IS_STALE, "stale") \
|
|
EM(FSCACHE_OBJECT_NO_SPACE, "no_space") \
|
|
EM(FSCACHE_OBJECT_WAS_RETIRED, "was_retired") \
|
|
E_(FSCACHE_OBJECT_WAS_CULLED, "was_culled")
|
|
|
|
#define cachefiles_obj_ref_traces \
|
|
EM(fscache_obj_get_add_to_deps, "GET add_to_deps") \
|
|
EM(fscache_obj_get_queue, "GET queue") \
|
|
EM(fscache_obj_put_alloc_fail, "PUT alloc_fail") \
|
|
EM(fscache_obj_put_attach_fail, "PUT attach_fail") \
|
|
EM(fscache_obj_put_drop_obj, "PUT drop_obj") \
|
|
EM(fscache_obj_put_enq_dep, "PUT enq_dep") \
|
|
EM(fscache_obj_put_queue, "PUT queue") \
|
|
EM(fscache_obj_put_work, "PUT work") \
|
|
EM(cachefiles_obj_put_wait_retry, "PUT wait_retry") \
|
|
E_(cachefiles_obj_put_wait_timeo, "PUT wait_timeo")
|
|
|
|
/*
|
|
* 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_obj_kill_traces;
|
|
cachefiles_obj_ref_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_ref,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct fscache_cookie *cookie,
|
|
enum cachefiles_obj_ref_trace why,
|
|
int usage),
|
|
|
|
TP_ARGS(obj, cookie, why, usage),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct fscache_cookie *, cookie )
|
|
__field(enum cachefiles_obj_ref_trace, why )
|
|
__field(int, usage )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->cookie = cookie;
|
|
__entry->usage = usage;
|
|
__entry->why = why;
|
|
),
|
|
|
|
TP_printk("c=%p o=%p u=%d %s",
|
|
__entry->cookie, __entry->obj, __entry->usage,
|
|
__print_symbolic(__entry->why, cachefiles_obj_ref_traces))
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_lookup,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
struct inode *inode),
|
|
|
|
TP_ARGS(obj, de, inode),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(struct inode *, inode )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->inode = inode;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p i=%p",
|
|
__entry->obj, __entry->de, __entry->inode)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_mkdir,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de, int ret),
|
|
|
|
TP_ARGS(obj, de, ret),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(int, ret )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->ret = ret;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p r=%u",
|
|
__entry->obj, __entry->de, __entry->ret)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_create,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de, int ret),
|
|
|
|
TP_ARGS(obj, de, ret),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(int, ret )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->ret = ret;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p r=%u",
|
|
__entry->obj, __entry->de, __entry->ret)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_unlink,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
enum fscache_why_object_killed why),
|
|
|
|
TP_ARGS(obj, de, why),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(enum fscache_why_object_killed, why )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->why = why;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p w=%s",
|
|
__entry->obj, __entry->de,
|
|
__print_symbolic(__entry->why, cachefiles_obj_kill_traces))
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_rename,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
struct dentry *to,
|
|
enum fscache_why_object_killed why),
|
|
|
|
TP_ARGS(obj, de, to, why),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(struct dentry *, to )
|
|
__field(enum fscache_why_object_killed, why )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->to = to;
|
|
__entry->why = why;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p t=%p w=%s",
|
|
__entry->obj, __entry->de, __entry->to,
|
|
__print_symbolic(__entry->why, cachefiles_obj_kill_traces))
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_mark_active,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de),
|
|
|
|
TP_ARGS(obj, de),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p",
|
|
__entry->obj, __entry->de)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_wait_active,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
struct cachefiles_object *xobj),
|
|
|
|
TP_ARGS(obj, de, xobj),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(struct cachefiles_object *, xobj )
|
|
__field(u16, flags )
|
|
__field(u16, fsc_flags )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->xobj = xobj;
|
|
__entry->flags = xobj->flags;
|
|
__entry->fsc_flags = xobj->fscache.flags;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p wo=%p wf=%x wff=%x",
|
|
__entry->obj, __entry->de, __entry->xobj,
|
|
__entry->flags, __entry->fsc_flags)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_mark_inactive,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
struct inode *inode),
|
|
|
|
TP_ARGS(obj, de, inode),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(struct inode *, inode )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->inode = inode;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p i=%p",
|
|
__entry->obj, __entry->de, __entry->inode)
|
|
);
|
|
|
|
TRACE_EVENT(cachefiles_mark_buried,
|
|
TP_PROTO(struct cachefiles_object *obj,
|
|
struct dentry *de,
|
|
enum fscache_why_object_killed why),
|
|
|
|
TP_ARGS(obj, de, why),
|
|
|
|
/* Note that obj may be NULL */
|
|
TP_STRUCT__entry(
|
|
__field(struct cachefiles_object *, obj )
|
|
__field(struct dentry *, de )
|
|
__field(enum fscache_why_object_killed, why )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->obj = obj;
|
|
__entry->de = de;
|
|
__entry->why = why;
|
|
),
|
|
|
|
TP_printk("o=%p d=%p w=%s",
|
|
__entry->obj, __entry->de,
|
|
__print_symbolic(__entry->why, cachefiles_obj_kill_traces))
|
|
);
|
|
|
|
#endif /* _TRACE_CACHEFILES_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|