1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 #if defined(_KERNEL) 24 #if defined(HAVE_DECLARE_EVENT_CLASS) 25 26 #undef TRACE_SYSTEM 27 #define TRACE_SYSTEM zfs 28 29 #undef TRACE_SYSTEM_VAR 30 #define TRACE_SYSTEM_VAR zfs_zrlock 31 32 #if !defined(_TRACE_ZRLOCK_H) || defined(TRACE_HEADER_MULTI_READ) 33 #define _TRACE_ZRLOCK_H 34 35 #include <linux/tracepoint.h> 36 #include <sys/types.h> 37 38 /* 39 * Generic support for two argument tracepoints of the form: 40 * 41 * DTRACE_PROBE2(..., 42 * zrlock_t *, ..., 43 * uint32_t, ...); 44 */ 45 /* BEGIN CSTYLED */ 46 DECLARE_EVENT_CLASS(zfs_zrlock_class, 47 TP_PROTO(zrlock_t *zrl, kthread_t *owner, uint32_t n), 48 TP_ARGS(zrl, owner, n), 49 TP_STRUCT__entry( 50 __field(int32_t, refcount) 51 #ifdef ZFS_DEBUG 52 __field(pid_t, owner_pid) 53 __field(const char *, caller) 54 #endif 55 __field(uint32_t, n) 56 ), 57 TP_fast_assign( 58 __entry->refcount = zrl->zr_refcount; 59 #ifdef ZFS_DEBUG 60 __entry->owner_pid = owner ? owner->pid : 0; 61 __entry->caller = zrl->zr_caller ? zrl->zr_caller : "(null)"; 62 #endif 63 __entry->n = n; 64 ), 65 #ifdef ZFS_DEBUG 66 TP_printk("zrl { refcount %d owner_pid %d caller %s } n %u", 67 __entry->refcount, __entry->owner_pid, __entry->caller, 68 __entry->n) 69 #else 70 TP_printk("zrl { refcount %d } n %u", 71 __entry->refcount, __entry->n) 72 #endif 73 ); 74 /* END CSTYLED */ 75 76 #define DEFINE_ZRLOCK_EVENT(name) \ 77 DEFINE_EVENT(zfs_zrlock_class, name, \ 78 TP_PROTO(zrlock_t *zrl, kthread_t *owner, uint32_t n), \ 79 TP_ARGS(zrl, owner, n)) 80 DEFINE_ZRLOCK_EVENT(zfs_zrlock__reentry); 81 82 #endif /* _TRACE_ZRLOCK_H */ 83 84 #undef TRACE_INCLUDE_PATH 85 #undef TRACE_INCLUDE_FILE 86 #define TRACE_INCLUDE_PATH sys 87 #define TRACE_INCLUDE_FILE trace_zrlock 88 #include <trace/define_trace.h> 89 90 #else 91 92 DEFINE_DTRACE_PROBE3(zrlock__reentry); 93 94 #endif /* HAVE_DECLARE_EVENT_CLASS */ 95 #endif /* _KERNEL */ 96