diff options
Diffstat (limited to 'include/trace/events/cachefiles.h')
| -rw-r--r-- | include/trace/events/cachefiles.h | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/include/trace/events/cachefiles.h b/include/trace/events/cachefiles.h new file mode 100644 index 000000000000..aa86e7dba511 --- /dev/null +++ b/include/trace/events/cachefiles.h @@ -0,0 +1,325 @@ +/* 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> |