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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
#if defined(_KERNEL)
#if defined(HAVE_DECLARE_EVENT_CLASS)
#undef TRACE_SYSTEM
#define TRACE_SYSTEM zfs
#undef TRACE_SYSTEM_VAR
#define TRACE_SYSTEM_VAR zfs_dbuf
#if !defined(_TRACE_DBUF_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_DBUF_H
#include <linux/tracepoint.h>
#include <sys/types.h>
#ifndef TRACE_DBUF_MSG_MAX
#define TRACE_DBUF_MSG_MAX 512
#endif
/*
* Generic support for two argument tracepoints of the form:
*
* DTRACE_PROBE2(...,
* dmu_buf_impl_t *, ...,
* zio_t *, ...);
*/
#define DBUF_TP_STRUCT_ENTRY \
__dynamic_array(char, os_spa, TRACE_DBUF_MSG_MAX) \
__field(uint64_t, ds_object) \
__field(uint64_t, db_object) \
__field(uint64_t, db_level) \
__field(uint64_t, db_blkid) \
__field(uint64_t, db_offset) \
__field(uint64_t, db_size) \
__field(uint64_t, db_state) \
__field(int64_t, db_holds) \
__dynamic_array(char, msg, TRACE_DBUF_MSG_MAX)
#define DBUF_TP_FAST_ASSIGN \
if (db != NULL) { \
__assign_str(os_spa, \
spa_name(DB_DNODE(db)->dn_objset->os_spa)); \
\
__entry->ds_object = db->db_objset->os_dsl_dataset ? \
db->db_objset->os_dsl_dataset->ds_object : 0; \
\
__entry->db_object = db->db.db_object; \
__entry->db_level = db->db_level; \
__entry->db_blkid = db->db_blkid; \
__entry->db_offset = db->db.db_offset; \
__entry->db_size = db->db.db_size; \
__entry->db_state = db->db_state; \
__entry->db_holds = zfs_refcount_count(&db->db_holds); \
snprintf(__get_str(msg), TRACE_DBUF_MSG_MAX, \
DBUF_TP_PRINTK_FMT, DBUF_TP_PRINTK_ARGS); \
} else { \
__assign_str(os_spa, "NULL") \
__entry->ds_object = 0; \
__entry->db_object = 0; \
__entry->db_level = 0; \
__entry->db_blkid = 0; \
__entry->db_offset = 0; \
__entry->db_size = 0; \
__entry->db_state = 0; \
__entry->db_holds = 0; \
snprintf(__get_str(msg), TRACE_DBUF_MSG_MAX, \
"dbuf { NULL }"); \
}
#define DBUF_TP_PRINTK_FMT \
"dbuf { spa \"%s\" objset %llu object %llu level %llu " \
"blkid %llu offset %llu size %llu state %llu holds %lld }"
#define DBUF_TP_PRINTK_ARGS \
__get_str(os_spa), __entry->ds_object, \
__entry->db_object, __entry->db_level, \
__entry->db_blkid, __entry->db_offset, \
__entry->db_size, __entry->db_state, __entry->db_holds
/* BEGIN CSTYLED */
DECLARE_EVENT_CLASS(zfs_dbuf_class,
TP_PROTO(dmu_buf_impl_t *db, zio_t *zio),
TP_ARGS(db, zio),
TP_STRUCT__entry(DBUF_TP_STRUCT_ENTRY),
TP_fast_assign(DBUF_TP_FAST_ASSIGN),
TP_printk("%s", __get_str(msg))
);
/* END CSTYLED */
/* BEGIN CSTYLED */
#define DEFINE_DBUF_EVENT(name) \
DEFINE_EVENT(zfs_dbuf_class, name, \
TP_PROTO(dmu_buf_impl_t *db, zio_t *zio), \
TP_ARGS(db, zio))
/* END CSTYLED */
DEFINE_DBUF_EVENT(zfs_blocked__read);
/* BEGIN CSTYLED */
DECLARE_EVENT_CLASS(zfs_dbuf_evict_one_class,
TP_PROTO(dmu_buf_impl_t *db, multilist_sublist_t *mls),
TP_ARGS(db, mls),
TP_STRUCT__entry(DBUF_TP_STRUCT_ENTRY),
TP_fast_assign(DBUF_TP_FAST_ASSIGN),
TP_printk("%s", __get_str(msg))
);
/* END CSTYLED */
/* BEGIN CSTYLED */
#define DEFINE_DBUF_EVICT_ONE_EVENT(name) \
DEFINE_EVENT(zfs_dbuf_evict_one_class, name, \
TP_PROTO(dmu_buf_impl_t *db, multilist_sublist_t *mls), \
TP_ARGS(db, mls))
/* END CSTYLED */
DEFINE_DBUF_EVICT_ONE_EVENT(zfs_dbuf__evict__one);
#endif /* _TRACE_DBUF_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH sys
#define TRACE_INCLUDE_FILE trace_dbuf
#include <trace/define_trace.h>
#else
DEFINE_DTRACE_PROBE2(blocked__read);
DEFINE_DTRACE_PROBE2(dbuf__evict__one);
#endif /* HAVE_DECLARE_EVENT_CLASS */
#endif /* _KERNEL */
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