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 /* 27 * If tracepoints are available define dtrace_probe events for vdev 28 * related probes. Definitions in include/os/linux/spl/sys/trace.h 29 * will map DTRACE_PROBE* calls to tracepoints. 30 */ 31 32 #undef TRACE_SYSTEM 33 #define TRACE_SYSTEM zfs 34 35 #undef TRACE_SYSTEM_VAR 36 #define TRACE_SYSTEM_VAR zfs_vdev 37 38 #if !defined(_TRACE_VDEV_H) || defined(TRACE_HEADER_MULTI_READ) 39 #define _TRACE_VDEV_H 40 41 #include <linux/tracepoint.h> 42 #include <sys/types.h> 43 44 /* 45 * Generic support for three argument tracepoints of the form: 46 * 47 * DTRACE_PROBE3(..., 48 * spa_t *, ..., 49 * uint64_t, ..., 50 * uint64_t, ...); 51 */ 52 /* BEGIN CSTYLED */ 53 DECLARE_EVENT_CLASS(zfs_removing_class_3, 54 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size), 55 TP_ARGS(spa, offset, size), 56 TP_STRUCT__entry( 57 __field(spa_t *, vdev_spa) 58 __field(uint64_t, vdev_offset) 59 __field(uint64_t, vdev_size) 60 ), 61 TP_fast_assign( 62 __entry->vdev_spa = spa; 63 __entry->vdev_offset = offset; 64 __entry->vdev_size = size; 65 ), 66 TP_printk("spa %p offset %llu size %llu", 67 __entry->vdev_spa, __entry->vdev_offset, 68 __entry->vdev_size) 69 ); 70 /* END CSTYLED */ 71 72 #define DEFINE_REMOVE_FREE_EVENT(name) \ 73 DEFINE_EVENT(zfs_removing_class_3, name, \ 74 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size), \ 75 TP_ARGS(spa, offset, size)) 76 DEFINE_REMOVE_FREE_EVENT(zfs_remove__free__synced); 77 DEFINE_REMOVE_FREE_EVENT(zfs_remove__free__unvisited); 78 79 /* 80 * Generic support for four argument tracepoints of the form: 81 * 82 * DTRACE_PROBE4(..., 83 * spa_t *, ..., 84 * uint64_t, ..., 85 * uint64_t, ..., 86 * uint64_t, ...); 87 */ 88 /* BEGIN CSTYLED */ 89 DECLARE_EVENT_CLASS(zfs_removing_class_4, 90 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size, uint64_t txg), 91 TP_ARGS(spa, offset, size, txg), 92 TP_STRUCT__entry( 93 __field(spa_t *, vdev_spa) 94 __field(uint64_t, vdev_offset) 95 __field(uint64_t, vdev_size) 96 __field(uint64_t, vdev_txg) 97 ), 98 TP_fast_assign( 99 __entry->vdev_spa = spa; 100 __entry->vdev_offset = offset; 101 __entry->vdev_size = size; 102 __entry->vdev_txg = txg; 103 ), 104 TP_printk("spa %p offset %llu size %llu txg %llu", 105 __entry->vdev_spa, __entry->vdev_offset, 106 __entry->vdev_size, __entry->vdev_txg) 107 ); 108 109 #define DEFINE_REMOVE_FREE_EVENT_TXG(name) \ 110 DEFINE_EVENT(zfs_removing_class_4, name, \ 111 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size,uint64_t txg), \ 112 TP_ARGS(spa, offset, size, txg)) 113 DEFINE_REMOVE_FREE_EVENT_TXG(zfs_remove__free__inflight); 114 115 #endif /* _TRACE_VDEV_H */ 116 117 #undef TRACE_INCLUDE_PATH 118 #undef TRACE_INCLUDE_FILE 119 #define TRACE_INCLUDE_PATH sys 120 #define TRACE_INCLUDE_FILE trace_vdev 121 #include <trace/define_trace.h> 122 123 #else 124 125 /* 126 * When tracepoints are not available, a DEFINE_DTRACE_PROBE* macro is 127 * needed for each DTRACE_PROBE. These will be used to generate stub 128 * tracing functions and prototypes for those functions. See 129 * include/os/linux/spl/sys/trace.h. 130 */ 131 132 DEFINE_DTRACE_PROBE3(remove__free__synced); 133 DEFINE_DTRACE_PROBE3(remove__free__unvisited); 134 DEFINE_DTRACE_PROBE4(remove__free__inflight); 135 136 #endif /* HAVE_DECLARE_EVENT_CLASS */ 137 #endif /* _KERNEL */ 138