trace_zrlock.h

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    1 /*
    2  * CDDL HEADER START
    3  *
    4  * The contents of this file are subject to the terms of the
    5  * Common Development and Distribution License (the "License").
    6  * You may not use this file except in compliance with the License.
    7  *
    8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
    9  * or https://opensource.org/licenses/CDDL-1.0.
   10  * See the License for the specific language governing permissions
   11  * and limitations under the License.
   12  *
   13  * When distributing Covered Code, include this CDDL HEADER in each
   14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   15  * If applicable, add the following below this CDDL HEADER, with the
   16  * fields enclosed by brackets "[]" replaced with your own identifying
   17  * information: Portions Copyright [yyyy] [name of copyright owner]
   18  *
   19  * CDDL HEADER END
   20  */
   21 
   22 #if defined(_KERNEL)
   23 #if defined(HAVE_DECLARE_EVENT_CLASS)
   24 
   25 #undef TRACE_SYSTEM
   26 #define TRACE_SYSTEM zfs
   27 
   28 #undef TRACE_SYSTEM_VAR
   29 #define TRACE_SYSTEM_VAR zfs_zrlock
   30 
   31 #if !defined(_TRACE_ZRLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   32 #define _TRACE_ZRLOCK_H
   33 
   34 #include <linux/tracepoint.h>
   35 #include <sys/types.h>
   36 
   37 /*
   38  * Generic support for two argument tracepoints of the form:
   39  *
   40  * DTRACE_PROBE2(...,
   41  *     zrlock_t *, ...,
   42  *     uint32_t, ...);
   43  */
   44 /* BEGIN CSTYLED */
   45 DECLARE_EVENT_CLASS(zfs_zrlock_class,
   46         TP_PROTO(zrlock_t *zrl, kthread_t *owner, uint32_t n),
   47         TP_ARGS(zrl, owner, n),
   48         TP_STRUCT__entry(
   49             __field(int32_t,            refcount)
   50 #ifdef  ZFS_DEBUG
   51             __field(pid_t,              owner_pid)
   52             __field(const char *,       caller)
   53 #endif
   54             __field(uint32_t,           n)
   55         ),
   56         TP_fast_assign(
   57             __entry->refcount   = zrl->zr_refcount;
   58 #ifdef  ZFS_DEBUG
   59             __entry->owner_pid  = owner ? owner->pid : 0;
   60             __entry->caller = zrl->zr_caller ? zrl->zr_caller : "(null)";
   61 #endif
   62             __entry->n          = n;
   63         ),
   64 #ifdef  ZFS_DEBUG
   65         TP_printk("zrl { refcount %d owner_pid %d caller %s } n %u",
   66             __entry->refcount, __entry->owner_pid, __entry->caller,
   67             __entry->n)
   68 #else
   69         TP_printk("zrl { refcount %d } n %u",
   70             __entry->refcount, __entry->n)
   71 #endif
   72 );
   73 /* END CSTYLED */
   74 
   75 #define DEFINE_ZRLOCK_EVENT(name) \
   76 DEFINE_EVENT(zfs_zrlock_class, name, \
   77     TP_PROTO(zrlock_t *zrl, kthread_t *owner, uint32_t n), \
   78     TP_ARGS(zrl, owner, n))
   79 DEFINE_ZRLOCK_EVENT(zfs_zrlock__reentry);
   80 
   81 #endif /* _TRACE_ZRLOCK_H */
   82 
   83 #undef TRACE_INCLUDE_PATH
   84 #undef TRACE_INCLUDE_FILE
   85 #define TRACE_INCLUDE_PATH sys
   86 #define TRACE_INCLUDE_FILE trace_zrlock
   87 #include <trace/define_trace.h>
   88 
   89 #else
   90 
   91 DEFINE_DTRACE_PROBE3(zrlock__reentry);
   92 
   93 #endif /* HAVE_DECLARE_EVENT_CLASS */
   94 #endif /* _KERNEL */

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/include/os/linux/zfs/sys/trace_zrlock.h

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/zfs/sys/trace_zrlock.h