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 http://www.opensolaris.org/os/licensing. 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 /* 26 * If tracepoints are available define dtrace_probe events for vdev 27 * related probes. Definitions in include/os/linux/spl/sys/trace.h 28 * will map DTRACE_PROBE* calls to tracepoints. 29 */ 30 31 #undef TRACE_SYSTEM 32 #define TRACE_SYSTEM zfs 33 34 #undef TRACE_SYSTEM_VAR 35 #define TRACE_SYSTEM_VAR zfs_vdev 36 37 #if !defined(_TRACE_VDEV_H) || defined(TRACE_HEADER_MULTI_READ) 38 #define _TRACE_VDEV_H 39 40 #include <linux/tracepoint.h> 41 #include <sys/types.h> 42 43 /* 44 * Generic support for three argument tracepoints of the form: 45 * 46 * DTRACE_PROBE3(..., 47 * spa_t *, ..., 48 * uint64_t, ..., 49 * uint64_t, ...); 50 */ 51 /* BEGIN CSTYLED */ 52 DECLARE_EVENT_CLASS(zfs_removing_class_3, 53 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size), 54 TP_ARGS(spa, offset, size), 55 TP_STRUCT__entry( 56 __field(spa_t *, vdev_spa) 57 __field(uint64_t, vdev_offset) 58 __field(uint64_t, vdev_size) 59 ), 60 TP_fast_assign( 61 __entry->vdev_spa = spa; 62 __entry->vdev_offset = offset; 63 __entry->vdev_size = size; 64 ), 65 TP_printk("spa %p offset %llu size %llu", 66 __entry->vdev_spa, __entry->vdev_offset, 67 __entry->vdev_size) 68 ); 69 /* END CSTYLED */ 70 71 #define DEFINE_REMOVE_FREE_EVENT(name) \ 72 DEFINE_EVENT(zfs_removing_class_3, name, \ 73 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size), \ 74 TP_ARGS(spa, offset, size)) 75 DEFINE_REMOVE_FREE_EVENT(zfs_remove__free__synced); 76 DEFINE_REMOVE_FREE_EVENT(zfs_remove__free__unvisited); 77 78 /* 79 * Generic support for four argument tracepoints of the form: 80 * 81 * DTRACE_PROBE4(..., 82 * spa_t *, ..., 83 * uint64_t, ..., 84 * uint64_t, ..., 85 * uint64_t, ...); 86 */ 87 /* BEGIN CSTYLED */ 88 DECLARE_EVENT_CLASS(zfs_removing_class_4, 89 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size, uint64_t txg), 90 TP_ARGS(spa, offset, size, txg), 91 TP_STRUCT__entry( 92 __field(spa_t *, vdev_spa) 93 __field(uint64_t, vdev_offset) 94 __field(uint64_t, vdev_size) 95 __field(uint64_t, vdev_txg) 96 ), 97 TP_fast_assign( 98 __entry->vdev_spa = spa; 99 __entry->vdev_offset = offset; 100 __entry->vdev_size = size; 101 __entry->vdev_txg = txg; 102 ), 103 TP_printk("spa %p offset %llu size %llu txg %llu", 104 __entry->vdev_spa, __entry->vdev_offset, 105 __entry->vdev_size, __entry->vdev_txg) 106 ); 107 108 #define DEFINE_REMOVE_FREE_EVENT_TXG(name) \ 109 DEFINE_EVENT(zfs_removing_class_4, name, \ 110 TP_PROTO(spa_t *spa, uint64_t offset, uint64_t size,uint64_t txg), \ 111 TP_ARGS(spa, offset, size, txg)) 112 DEFINE_REMOVE_FREE_EVENT_TXG(zfs_remove__free__inflight); 113 114 #endif /* _TRACE_VDEV_H */ 115 116 #undef TRACE_INCLUDE_PATH 117 #undef TRACE_INCLUDE_FILE 118 #define TRACE_INCLUDE_PATH sys 119 #define TRACE_INCLUDE_FILE trace_vdev 120 #include <trace/define_trace.h> 121 122 #else 123 124 /* 125 * When tracepoints are not available, a DEFINE_DTRACE_PROBE* macro is 126 * needed for each DTRACE_PROBE. These will be used to generate stub 127 * tracing functions and prototypes for those functions. See 128 * include/os/linux/spl/sys/trace.h. 129 */ 130 131 DEFINE_DTRACE_PROBE3(remove__free__synced); 132 DEFINE_DTRACE_PROBE3(remove__free__unvisited); 133 DEFINE_DTRACE_PROBE4(remove__free__inflight); 134 135 #endif /* HAVE_DECLARE_EVENT_CLASS */ 136 #endif /* _KERNEL */ 137