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-rw-r--r--include/trace/events/iocost.h178
-rw-r--r--include/trace/events/writeback.h126
2 files changed, 304 insertions, 0 deletions
diff --git a/include/trace/events/iocost.h b/include/trace/events/iocost.h
new file mode 100644
index 000000000000..7ecaa65b7106
--- /dev/null
+++ b/include/trace/events/iocost.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM iocost
+
+struct ioc;
+struct ioc_now;
+struct ioc_gq;
+
+#if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_BLK_IOCOST_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(iocost_iocg_activate,
+
+ TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
+ u64 last_period, u64 cur_period, u64 vtime),
+
+ TP_ARGS(iocg, path, now, last_period, cur_period, vtime),
+
+ TP_STRUCT__entry (
+ __string(devname, ioc_name(iocg->ioc))
+ __string(cgroup, path)
+ __field(u64, now)
+ __field(u64, vnow)
+ __field(u64, vrate)
+ __field(u64, last_period)
+ __field(u64, cur_period)
+ __field(u64, last_vtime)
+ __field(u64, vtime)
+ __field(u32, weight)
+ __field(u32, inuse)
+ __field(u64, hweight_active)
+ __field(u64, hweight_inuse)
+ ),
+
+ TP_fast_assign(
+ __assign_str(devname, ioc_name(iocg->ioc));
+ __assign_str(cgroup, path);
+ __entry->now = now->now;
+ __entry->vnow = now->vnow;
+ __entry->vrate = now->vrate;
+ __entry->last_period = last_period;
+ __entry->cur_period = cur_period;
+ __entry->last_vtime = iocg->last_vtime;
+ __entry->vtime = vtime;
+ __entry->weight = iocg->weight;
+ __entry->inuse = iocg->inuse;
+ __entry->hweight_active = iocg->hweight_active;
+ __entry->hweight_inuse = iocg->hweight_inuse;
+ ),
+
+ TP_printk("[%s:%s] now=%llu:%llu vrate=%llu "
+ "period=%llu->%llu vtime=%llu->%llu "
+ "weight=%u/%u hweight=%llu/%llu",
+ __get_str(devname), __get_str(cgroup),
+ __entry->now, __entry->vnow, __entry->vrate,
+ __entry->last_period, __entry->cur_period,
+ __entry->last_vtime, __entry->vtime,
+ __entry->inuse, __entry->weight,
+ __entry->hweight_inuse, __entry->hweight_active
+ )
+);
+
+DECLARE_EVENT_CLASS(iocg_inuse_update,
+
+ TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
+ u32 old_inuse, u32 new_inuse,
+ u64 old_hw_inuse, u64 new_hw_inuse),
+
+ TP_ARGS(iocg, path, now, old_inuse, new_inuse,
+ old_hw_inuse, new_hw_inuse),
+
+ TP_STRUCT__entry (
+ __string(devname, ioc_name(iocg->ioc))
+ __string(cgroup, path)
+ __field(u64, now)
+ __field(u32, old_inuse)
+ __field(u32, new_inuse)
+ __field(u64, old_hweight_inuse)
+ __field(u64, new_hweight_inuse)
+ ),
+
+ TP_fast_assign(
+ __assign_str(devname, ioc_name(iocg->ioc));
+ __assign_str(cgroup, path);
+ __entry->now = now->now;
+ __entry->old_inuse = old_inuse;
+ __entry->new_inuse = new_inuse;
+ __entry->old_hweight_inuse = old_hw_inuse;
+ __entry->new_hweight_inuse = new_hw_inuse;
+ ),
+
+ TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu",
+ __get_str(devname), __get_str(cgroup), __entry->now,
+ __entry->old_inuse, __entry->new_inuse,
+ __entry->old_hweight_inuse, __entry->new_hweight_inuse
+ )
+);
+
+DEFINE_EVENT(iocg_inuse_update, iocost_inuse_takeback,
+
+ TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
+ u32 old_inuse, u32 new_inuse,
+ u64 old_hw_inuse, u64 new_hw_inuse),
+
+ TP_ARGS(iocg, path, now, old_inuse, new_inuse,
+ old_hw_inuse, new_hw_inuse)
+);
+
+DEFINE_EVENT(iocg_inuse_update, iocost_inuse_giveaway,
+
+ TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
+ u32 old_inuse, u32 new_inuse,
+ u64 old_hw_inuse, u64 new_hw_inuse),
+
+ TP_ARGS(iocg, path, now, old_inuse, new_inuse,
+ old_hw_inuse, new_hw_inuse)
+);
+
+DEFINE_EVENT(iocg_inuse_update, iocost_inuse_reset,
+
+ TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
+ u32 old_inuse, u32 new_inuse,
+ u64 old_hw_inuse, u64 new_hw_inuse),
+
+ TP_ARGS(iocg, path, now, old_inuse, new_inuse,
+ old_hw_inuse, new_hw_inuse)
+);
+
+TRACE_EVENT(iocost_ioc_vrate_adj,
+
+ TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 (*missed_ppm)[2],
+ u32 rq_wait_pct, int nr_lagging, int nr_shortages,
+ int nr_surpluses),
+
+ TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages,
+ nr_surpluses),
+
+ TP_STRUCT__entry (
+ __string(devname, ioc_name(ioc))
+ __field(u64, old_vrate)
+ __field(u64, new_vrate)
+ __field(int, busy_level)
+ __field(u32, read_missed_ppm)
+ __field(u32, write_missed_ppm)
+ __field(u32, rq_wait_pct)
+ __field(int, nr_lagging)
+ __field(int, nr_shortages)
+ __field(int, nr_surpluses)
+ ),
+
+ TP_fast_assign(
+ __assign_str(devname, ioc_name(ioc));
+ __entry->old_vrate = atomic64_read(&ioc->vtime_rate);;
+ __entry->new_vrate = new_vrate;
+ __entry->busy_level = ioc->busy_level;
+ __entry->read_missed_ppm = (*missed_ppm)[READ];
+ __entry->write_missed_ppm = (*missed_ppm)[WRITE];
+ __entry->rq_wait_pct = rq_wait_pct;
+ __entry->nr_lagging = nr_lagging;
+ __entry->nr_shortages = nr_shortages;
+ __entry->nr_surpluses = nr_surpluses;
+ ),
+
+ TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d surpluses=%d",
+ __get_str(devname), __entry->old_vrate, __entry->new_vrate,
+ __entry->busy_level,
+ __entry->read_missed_ppm, __entry->write_missed_ppm,
+ __entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages,
+ __entry->nr_surpluses
+ )
+);
+
+#endif /* _TRACE_BLK_IOCOST_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index aa7f3aeac740..3a27335fce2c 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -176,6 +176,132 @@ static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *w
#endif /* CONFIG_CGROUP_WRITEBACK */
#endif /* CREATE_TRACE_POINTS */
+#ifdef CONFIG_CGROUP_WRITEBACK
+TRACE_EVENT(inode_foreign_history,
+
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc,
+ unsigned int history),
+
+ TP_ARGS(inode, wbc, history),
+
+ TP_STRUCT__entry(
+ __array(char, name, 32)
+ __field(unsigned long, ino)
+ __field(unsigned int, cgroup_ino)
+ __field(unsigned int, history)
+ ),
+
+ TP_fast_assign(
+ strncpy(__entry->name, dev_name(inode_to_bdi(inode)->dev), 32);
+ __entry->ino = inode->i_ino;
+ __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
+ __entry->history = history;
+ ),
+
+ TP_printk("bdi %s: ino=%lu cgroup_ino=%u history=0x%x",
+ __entry->name,
+ __entry->ino,
+ __entry->cgroup_ino,
+ __entry->history
+ )
+);
+
+TRACE_EVENT(inode_switch_wbs,
+
+ TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,
+ struct bdi_writeback *new_wb),
+
+ TP_ARGS(inode, old_wb, new_wb),
+
+ TP_STRUCT__entry(
+ __array(char, name, 32)
+ __field(unsigned long, ino)
+ __field(unsigned int, old_cgroup_ino)
+ __field(unsigned int, new_cgroup_ino)
+ ),
+
+ TP_fast_assign(
+ strncpy(__entry->name, dev_name(old_wb->bdi->dev), 32);
+ __entry->ino = inode->i_ino;
+ __entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb);
+ __entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb);
+ ),
+
+ TP_printk("bdi %s: ino=%lu old_cgroup_ino=%u new_cgroup_ino=%u",
+ __entry->name,
+ __entry->ino,
+ __entry->old_cgroup_ino,
+ __entry->new_cgroup_ino
+ )
+);
+
+TRACE_EVENT(track_foreign_dirty,
+
+ TP_PROTO(struct page *page, struct bdi_writeback *wb),
+
+ TP_ARGS(page, wb),
+
+ TP_STRUCT__entry(
+ __array(char, name, 32)
+ __field(u64, bdi_id)
+ __field(unsigned long, ino)
+ __field(unsigned int, memcg_id)
+ __field(unsigned int, cgroup_ino)
+ __field(unsigned int, page_cgroup_ino)
+ ),
+
+ TP_fast_assign(
+ struct address_space *mapping = page_mapping(page);
+ struct inode *inode = mapping ? mapping->host : NULL;
+
+ strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
+ __entry->bdi_id = wb->bdi->id;
+ __entry->ino = inode ? inode->i_ino : 0;
+ __entry->memcg_id = wb->memcg_css->id;
+ __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
+ __entry->page_cgroup_ino = page->mem_cgroup->css.cgroup->kn->id.ino;
+ ),
+
+ TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%u page_cgroup_ino=%u",
+ __entry->name,
+ __entry->bdi_id,
+ __entry->ino,
+ __entry->memcg_id,
+ __entry->cgroup_ino,
+ __entry->page_cgroup_ino
+ )
+);
+
+TRACE_EVENT(flush_foreign,
+
+ TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,
+ unsigned int frn_memcg_id),
+
+ TP_ARGS(wb, frn_bdi_id, frn_memcg_id),
+
+ TP_STRUCT__entry(
+ __array(char, name, 32)
+ __field(unsigned int, cgroup_ino)
+ __field(unsigned int, frn_bdi_id)
+ __field(unsigned int, frn_memcg_id)
+ ),
+
+ TP_fast_assign(
+ strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
+ __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
+ __entry->frn_bdi_id = frn_bdi_id;
+ __entry->frn_memcg_id = frn_memcg_id;
+ ),
+
+ TP_printk("bdi %s: cgroup_ino=%u frn_bdi_id=%u frn_memcg_id=%u",
+ __entry->name,
+ __entry->cgroup_ino,
+ __entry->frn_bdi_id,
+ __entry->frn_memcg_id
+ )
+);
+#endif
+
DECLARE_EVENT_CLASS(writeback_write_inode_template,
TP_PROTO(struct inode *inode, struct writeback_control *wbc),