1 #undef TRACE_SYSTEM 2 #define TRACE_SYSTEM writeback 3 4 #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) 5 #define _TRACE_WRITEBACK_H 6 7 #include <linux/backing-dev.h> 8 #include <linux/device.h> 9 #include <linux/writeback.h> 10 11 struct wb_writeback_work; 12 13 DECLARE_EVENT_CLASS(writeback_work_class, 14 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), 15 TP_ARGS(bdi, work), 16 TP_STRUCT__entry( 17 __array(char, name, 32) 18 __field(long, nr_pages) 19 __field(dev_t, sb_dev) 20 __field(int, sync_mode) 21 __field(int, for_kupdate) 22 __field(int, range_cyclic) 23 __field(int, for_background) 24 ), 25 TP_fast_assign( 26 strncpy(__entry->name, dev_name(bdi->dev), 32); 27 __entry->nr_pages = work->nr_pages; 28 __entry->sb_dev = work->sb ? work->sb->s_dev : 0; 29 __entry->sync_mode = work->sync_mode; 30 __entry->for_kupdate = work->for_kupdate; 31 __entry->range_cyclic = work->range_cyclic; 32 __entry->for_background = work->for_background; 33 ), 34 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " 35 "kupdate=%d range_cyclic=%d background=%d", 36 __entry->name, 37 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), 38 __entry->nr_pages, 39 __entry->sync_mode, 40 __entry->for_kupdate, 41 __entry->range_cyclic, 42 __entry->for_background 43 ) 44 ); 45 #define DEFINE_WRITEBACK_WORK_EVENT(name) \ 46 DEFINE_EVENT(writeback_work_class, name, \ 47 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ 48 TP_ARGS(bdi, work)) 49 DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread); 50 DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); 51 DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); 52 53 TRACE_EVENT(writeback_pages_written, 54 TP_PROTO(long pages_written), 55 TP_ARGS(pages_written), 56 TP_STRUCT__entry( 57 __field(long, pages) 58 ), 59 TP_fast_assign( 60 __entry->pages = pages_written; 61 ), 62 TP_printk("%ld", __entry->pages) 63 ); 64 65 DECLARE_EVENT_CLASS(writeback_class, 66 TP_PROTO(struct backing_dev_info *bdi), 67 TP_ARGS(bdi), 68 TP_STRUCT__entry( 69 __array(char, name, 32) 70 ), 71 TP_fast_assign( 72 strncpy(__entry->name, dev_name(bdi->dev), 32); 73 ), 74 TP_printk("bdi %s", 75 __entry->name 76 ) 77 ); 78 #define DEFINE_WRITEBACK_EVENT(name) \ 79 DEFINE_EVENT(writeback_class, name, \ 80 TP_PROTO(struct backing_dev_info *bdi), \ 81 TP_ARGS(bdi)) 82 83 DEFINE_WRITEBACK_EVENT(writeback_nowork); 84 DEFINE_WRITEBACK_EVENT(writeback_wake_thread); 85 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread); 86 DEFINE_WRITEBACK_EVENT(writeback_bdi_register); 87 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister); 88 DEFINE_WRITEBACK_EVENT(writeback_thread_start); 89 DEFINE_WRITEBACK_EVENT(writeback_thread_stop); 90 91 DECLARE_EVENT_CLASS(wbc_class, 92 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), 93 TP_ARGS(wbc, bdi), 94 TP_STRUCT__entry( 95 __array(char, name, 32) 96 __field(long, nr_to_write) 97 __field(long, pages_skipped) 98 __field(int, sync_mode) 99 __field(int, for_kupdate) 100 __field(int, for_background) 101 __field(int, for_reclaim) 102 __field(int, range_cyclic) 103 __field(int, more_io) 104 __field(unsigned long, older_than_this) 105 __field(long, range_start) 106 __field(long, range_end) 107 ), 108 109 TP_fast_assign( 110 strncpy(__entry->name, dev_name(bdi->dev), 32); 111 __entry->nr_to_write = wbc->nr_to_write; 112 __entry->pages_skipped = wbc->pages_skipped; 113 __entry->sync_mode = wbc->sync_mode; 114 __entry->for_kupdate = wbc->for_kupdate; 115 __entry->for_background = wbc->for_background; 116 __entry->for_reclaim = wbc->for_reclaim; 117 __entry->range_cyclic = wbc->range_cyclic; 118 __entry->more_io = wbc->more_io; 119 __entry->older_than_this = wbc->older_than_this ? 120 *wbc->older_than_this : 0; 121 __entry->range_start = (long)wbc->range_start; 122 __entry->range_end = (long)wbc->range_end; 123 ), 124 125 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " 126 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " 127 "start=0x%lx end=0x%lx", 128 __entry->name, 129 __entry->nr_to_write, 130 __entry->pages_skipped, 131 __entry->sync_mode, 132 __entry->for_kupdate, 133 __entry->for_background, 134 __entry->for_reclaim, 135 __entry->range_cyclic, 136 __entry->more_io, 137 __entry->older_than_this, 138 __entry->range_start, 139 __entry->range_end) 140 ) 141 142 #define DEFINE_WBC_EVENT(name) \ 143 DEFINE_EVENT(wbc_class, name, \ 144 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ 145 TP_ARGS(wbc, bdi)) 146 DEFINE_WBC_EVENT(wbc_writeback_start); 147 DEFINE_WBC_EVENT(wbc_writeback_written); 148 DEFINE_WBC_EVENT(wbc_writeback_wait); 149 DEFINE_WBC_EVENT(wbc_balance_dirty_start); 150 DEFINE_WBC_EVENT(wbc_balance_dirty_written); 151 DEFINE_WBC_EVENT(wbc_balance_dirty_wait); 152 DEFINE_WBC_EVENT(wbc_writepage); 153 154 DECLARE_EVENT_CLASS(writeback_congest_waited_template, 155 156 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), 157 158 TP_ARGS(usec_timeout, usec_delayed), 159 160 TP_STRUCT__entry( 161 __field( unsigned int, usec_timeout ) 162 __field( unsigned int, usec_delayed ) 163 ), 164 165 TP_fast_assign( 166 __entry->usec_timeout = usec_timeout; 167 __entry->usec_delayed = usec_delayed; 168 ), 169 170 TP_printk("usec_timeout=%u usec_delayed=%u", 171 __entry->usec_timeout, 172 __entry->usec_delayed) 173 ); 174 175 DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, 176 177 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), 178 179 TP_ARGS(usec_timeout, usec_delayed) 180 ); 181 182 #endif /* _TRACE_WRITEBACK_H */ 183 184 /* This part must be outside protection */ 185 #include <trace/define_trace.h> 186