| 1 |
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| 2 | #undef TRACE_SYSTEM
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| 3 | #define TRACE_SYSTEM iocost
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| 4 |
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| 5 | struct ioc;
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| 6 | struct ioc_now;
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| 7 | struct ioc_gq;
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| 8 |
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| 9 | #if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ)
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| 10 | #define _TRACE_BLK_IOCOST_H
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| 11 |
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| 12 | #include <linux/tracepoint.h>
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| 13 |
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| 14 | DECLARE_EVENT_CLASS(iocost_iocg_state,
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| 15 |
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| 16 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 17 | u64 last_period, u64 cur_period, u64 vtime),
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| 18 |
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| 19 | TP_ARGS(iocg, path, now, last_period, cur_period, vtime),
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| 20 |
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| 21 | TP_STRUCT__entry (
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| 22 | __string(devname, ioc_name(iocg->ioc))
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| 23 | __string(cgroup, path)
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| 24 | __field(u64, now)
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| 25 | __field(u64, vnow)
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| 26 | __field(u64, vrate)
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| 27 | __field(u64, last_period)
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| 28 | __field(u64, cur_period)
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| 29 | __field(u64, vtime)
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| 30 | __field(u32, weight)
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| 31 | __field(u32, inuse)
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| 32 | __field(u64, hweight_active)
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| 33 | __field(u64, hweight_inuse)
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| 34 | ),
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| 35 |
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| 36 | TP_fast_assign(
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| 37 | __assign_str(devname);
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| 38 | __assign_str(cgroup);
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| 39 | __entry->now = now->now;
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| 40 | __entry->vnow = now->vnow;
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| 41 | __entry->vrate = iocg->ioc->vtime_base_rate;
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| 42 | __entry->last_period = last_period;
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| 43 | __entry->cur_period = cur_period;
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| 44 | __entry->vtime = vtime;
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| 45 | __entry->weight = iocg->weight;
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| 46 | __entry->inuse = iocg->inuse;
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| 47 | __entry->hweight_active = iocg->hweight_active;
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| 48 | __entry->hweight_inuse = iocg->hweight_inuse;
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| 49 | ),
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| 50 |
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| 51 | TP_printk("[%s:%s] now=%llu:%llu vrate=%llu "
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| 52 | "period=%llu->%llu vtime=%llu "
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| 53 | "weight=%u/%u hweight=%llu/%llu",
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| 54 | __get_str(devname), __get_str(cgroup),
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| 55 | __entry->now, __entry->vnow, __entry->vrate,
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| 56 | __entry->last_period, __entry->cur_period,
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| 57 | __entry->vtime, __entry->inuse, __entry->weight,
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| 58 | __entry->hweight_inuse, __entry->hweight_active
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| 59 | )
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| 60 | );
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| 61 |
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| 62 | DEFINE_EVENT(iocost_iocg_state, iocost_iocg_activate,
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| 63 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 64 | u64 last_period, u64 cur_period, u64 vtime),
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| 65 |
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| 66 | TP_ARGS(iocg, path, now, last_period, cur_period, vtime)
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| 67 | );
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| 68 |
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| 69 | DEFINE_EVENT(iocost_iocg_state, iocost_iocg_idle,
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| 70 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 71 | u64 last_period, u64 cur_period, u64 vtime),
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| 72 |
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| 73 | TP_ARGS(iocg, path, now, last_period, cur_period, vtime)
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| 74 | );
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| 75 |
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| 76 | DECLARE_EVENT_CLASS(iocg_inuse_update,
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| 77 |
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| 78 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 79 | u32 old_inuse, u32 new_inuse,
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| 80 | u64 old_hw_inuse, u64 new_hw_inuse),
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| 81 |
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| 82 | TP_ARGS(iocg, path, now, old_inuse, new_inuse,
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| 83 | old_hw_inuse, new_hw_inuse),
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| 84 |
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| 85 | TP_STRUCT__entry (
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| 86 | __string(devname, ioc_name(iocg->ioc))
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| 87 | __string(cgroup, path)
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| 88 | __field(u64, now)
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| 89 | __field(u32, old_inuse)
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| 90 | __field(u32, new_inuse)
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| 91 | __field(u64, old_hweight_inuse)
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| 92 | __field(u64, new_hweight_inuse)
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| 93 | ),
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| 94 |
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| 95 | TP_fast_assign(
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| 96 | __assign_str(devname);
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| 97 | __assign_str(cgroup);
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| 98 | __entry->now = now->now;
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| 99 | __entry->old_inuse = old_inuse;
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| 100 | __entry->new_inuse = new_inuse;
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| 101 | __entry->old_hweight_inuse = old_hw_inuse;
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| 102 | __entry->new_hweight_inuse = new_hw_inuse;
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| 103 | ),
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| 104 |
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| 105 | TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu",
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| 106 | __get_str(devname), __get_str(cgroup), __entry->now,
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| 107 | __entry->old_inuse, __entry->new_inuse,
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| 108 | __entry->old_hweight_inuse, __entry->new_hweight_inuse
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| 109 | )
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| 110 | );
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| 111 |
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| 112 | DEFINE_EVENT(iocg_inuse_update, iocost_inuse_shortage,
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| 113 |
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| 114 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 115 | u32 old_inuse, u32 new_inuse,
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| 116 | u64 old_hw_inuse, u64 new_hw_inuse),
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| 117 |
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| 118 | TP_ARGS(iocg, path, now, old_inuse, new_inuse,
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| 119 | old_hw_inuse, new_hw_inuse)
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| 120 | );
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| 121 |
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| 122 | DEFINE_EVENT(iocg_inuse_update, iocost_inuse_transfer,
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| 123 |
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| 124 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 125 | u32 old_inuse, u32 new_inuse,
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| 126 | u64 old_hw_inuse, u64 new_hw_inuse),
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| 127 |
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| 128 | TP_ARGS(iocg, path, now, old_inuse, new_inuse,
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| 129 | old_hw_inuse, new_hw_inuse)
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| 130 | );
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| 131 |
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| 132 | DEFINE_EVENT(iocg_inuse_update, iocost_inuse_adjust,
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| 133 |
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| 134 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 135 | u32 old_inuse, u32 new_inuse,
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| 136 | u64 old_hw_inuse, u64 new_hw_inuse),
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| 137 |
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| 138 | TP_ARGS(iocg, path, now, old_inuse, new_inuse,
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| 139 | old_hw_inuse, new_hw_inuse)
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| 140 | );
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| 141 |
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| 142 | TRACE_EVENT(iocost_ioc_vrate_adj,
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| 143 |
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| 144 | TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 *missed_ppm,
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| 145 | u32 rq_wait_pct, int nr_lagging, int nr_shortages),
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| 146 |
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| 147 | TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages),
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| 148 |
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| 149 | TP_STRUCT__entry (
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| 150 | __string(devname, ioc_name(ioc))
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| 151 | __field(u64, old_vrate)
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| 152 | __field(u64, new_vrate)
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| 153 | __field(int, busy_level)
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| 154 | __field(u32, read_missed_ppm)
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| 155 | __field(u32, write_missed_ppm)
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| 156 | __field(u32, rq_wait_pct)
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| 157 | __field(int, nr_lagging)
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| 158 | __field(int, nr_shortages)
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| 159 | ),
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| 160 |
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| 161 | TP_fast_assign(
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| 162 | __assign_str(devname);
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| 163 | __entry->old_vrate = ioc->vtime_base_rate;
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| 164 | __entry->new_vrate = new_vrate;
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| 165 | __entry->busy_level = ioc->busy_level;
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| 166 | __entry->read_missed_ppm = missed_ppm[READ];
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| 167 | __entry->write_missed_ppm = missed_ppm[WRITE];
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| 168 | __entry->rq_wait_pct = rq_wait_pct;
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| 169 | __entry->nr_lagging = nr_lagging;
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| 170 | __entry->nr_shortages = nr_shortages;
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| 171 | ),
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| 172 |
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| 173 | TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d",
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| 174 | __get_str(devname), __entry->old_vrate, __entry->new_vrate,
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| 175 | __entry->busy_level,
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| 176 | __entry->read_missed_ppm, __entry->write_missed_ppm,
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| 177 | __entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages
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| 178 | )
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| 179 | );
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| 180 |
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| 181 | TRACE_EVENT(iocost_iocg_forgive_debt,
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| 182 |
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| 183 | TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
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| 184 | u32 usage_pct, u64 old_debt, u64 new_debt,
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| 185 | u64 old_delay, u64 new_delay),
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| 186 |
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| 187 | TP_ARGS(iocg, path, now, usage_pct,
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| 188 | old_debt, new_debt, old_delay, new_delay),
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| 189 |
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| 190 | TP_STRUCT__entry (
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| 191 | __string(devname, ioc_name(iocg->ioc))
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| 192 | __string(cgroup, path)
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| 193 | __field(u64, now)
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| 194 | __field(u64, vnow)
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| 195 | __field(u32, usage_pct)
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| 196 | __field(u64, old_debt)
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| 197 | __field(u64, new_debt)
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| 198 | __field(u64, old_delay)
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| 199 | __field(u64, new_delay)
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| 200 | ),
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| 201 |
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| 202 | TP_fast_assign(
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| 203 | __assign_str(devname);
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| 204 | __assign_str(cgroup);
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| 205 | __entry->now = now->now;
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| 206 | __entry->vnow = now->vnow;
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| 207 | __entry->usage_pct = usage_pct;
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| 208 | __entry->old_debt = old_debt;
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| 209 | __entry->new_debt = new_debt;
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| 210 | __entry->old_delay = old_delay;
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| 211 | __entry->new_delay = new_delay;
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| 212 | ),
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| 213 |
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| 214 | TP_printk("[%s:%s] now=%llu:%llu usage=%u debt=%llu->%llu delay=%llu->%llu",
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| 215 | __get_str(devname), __get_str(cgroup),
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| 216 | __entry->now, __entry->vnow, __entry->usage_pct,
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| 217 | __entry->old_debt, __entry->new_debt,
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| 218 | __entry->old_delay, __entry->new_delay
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| 219 | )
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| 220 | );
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| 221 |
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| 222 | #endif
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| 223 |
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| 224 |
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| 225 | #include <trace/define_trace.h>
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