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b6cfab7ad1
Only mm_compaction_isolate_{free, migrate}pages may be used when
CONFIG_COMPACTION is not set. All others are used only when
CONFIG_COMPACTION is set.
After this change, if CONFIG_COMPACTION is not set, the tracepoints that
only work when CONFIG_COMPACTION is set will not be exposed to userspace.
Without this change, they will always be exposed in debugfs whether
CONFIG_COMPACTION is set or not. This is an improvement.
Link: http://lkml.kernel.org/r/1552440403-11780-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
358 lines
7.7 KiB
C
358 lines
7.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM compaction
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#if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_COMPACTION_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/tracepoint.h>
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#include <trace/events/mmflags.h>
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DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken),
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TP_STRUCT__entry(
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__field(unsigned long, start_pfn)
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__field(unsigned long, end_pfn)
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__field(unsigned long, nr_scanned)
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__field(unsigned long, nr_taken)
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),
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TP_fast_assign(
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__entry->start_pfn = start_pfn;
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__entry->end_pfn = end_pfn;
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__entry->nr_scanned = nr_scanned;
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__entry->nr_taken = nr_taken;
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),
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TP_printk("range=(0x%lx ~ 0x%lx) nr_scanned=%lu nr_taken=%lu",
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__entry->start_pfn,
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__entry->end_pfn,
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__entry->nr_scanned,
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__entry->nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
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);
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#ifdef CONFIG_COMPACTION
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TRACE_EVENT(mm_compaction_migratepages,
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TP_PROTO(unsigned long nr_all,
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int migrate_rc,
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struct list_head *migratepages),
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TP_ARGS(nr_all, migrate_rc, migratepages),
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TP_STRUCT__entry(
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__field(unsigned long, nr_migrated)
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__field(unsigned long, nr_failed)
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),
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TP_fast_assign(
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unsigned long nr_failed = 0;
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struct list_head *page_lru;
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/*
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* migrate_pages() returns either a non-negative number
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* with the number of pages that failed migration, or an
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* error code, in which case we need to count the remaining
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* pages manually
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*/
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if (migrate_rc >= 0)
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nr_failed = migrate_rc;
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else
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list_for_each(page_lru, migratepages)
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nr_failed++;
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__entry->nr_migrated = nr_all - nr_failed;
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__entry->nr_failed = nr_failed;
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),
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TP_printk("nr_migrated=%lu nr_failed=%lu",
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__entry->nr_migrated,
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__entry->nr_failed)
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);
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TRACE_EVENT(mm_compaction_begin,
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TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn,
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unsigned long free_pfn, unsigned long zone_end, bool sync),
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TP_ARGS(zone_start, migrate_pfn, free_pfn, zone_end, sync),
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TP_STRUCT__entry(
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__field(unsigned long, zone_start)
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__field(unsigned long, migrate_pfn)
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__field(unsigned long, free_pfn)
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__field(unsigned long, zone_end)
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__field(bool, sync)
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),
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TP_fast_assign(
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__entry->zone_start = zone_start;
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__entry->migrate_pfn = migrate_pfn;
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__entry->free_pfn = free_pfn;
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__entry->zone_end = zone_end;
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__entry->sync = sync;
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),
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TP_printk("zone_start=0x%lx migrate_pfn=0x%lx free_pfn=0x%lx zone_end=0x%lx, mode=%s",
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__entry->zone_start,
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__entry->migrate_pfn,
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__entry->free_pfn,
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__entry->zone_end,
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__entry->sync ? "sync" : "async")
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);
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TRACE_EVENT(mm_compaction_end,
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TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn,
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unsigned long free_pfn, unsigned long zone_end, bool sync,
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int status),
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TP_ARGS(zone_start, migrate_pfn, free_pfn, zone_end, sync, status),
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TP_STRUCT__entry(
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__field(unsigned long, zone_start)
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__field(unsigned long, migrate_pfn)
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__field(unsigned long, free_pfn)
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__field(unsigned long, zone_end)
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__field(bool, sync)
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__field(int, status)
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),
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TP_fast_assign(
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__entry->zone_start = zone_start;
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__entry->migrate_pfn = migrate_pfn;
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__entry->free_pfn = free_pfn;
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__entry->zone_end = zone_end;
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__entry->sync = sync;
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__entry->status = status;
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),
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TP_printk("zone_start=0x%lx migrate_pfn=0x%lx free_pfn=0x%lx zone_end=0x%lx, mode=%s status=%s",
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__entry->zone_start,
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__entry->migrate_pfn,
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__entry->free_pfn,
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__entry->zone_end,
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__entry->sync ? "sync" : "async",
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__print_symbolic(__entry->status, COMPACTION_STATUS))
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);
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TRACE_EVENT(mm_compaction_try_to_compact_pages,
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TP_PROTO(
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int order,
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gfp_t gfp_mask,
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int prio),
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TP_ARGS(order, gfp_mask, prio),
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TP_STRUCT__entry(
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__field(int, order)
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__field(gfp_t, gfp_mask)
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__field(int, prio)
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),
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TP_fast_assign(
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__entry->order = order;
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__entry->gfp_mask = gfp_mask;
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__entry->prio = prio;
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),
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TP_printk("order=%d gfp_mask=%s priority=%d",
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__entry->order,
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show_gfp_flags(__entry->gfp_mask),
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__entry->prio)
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);
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DECLARE_EVENT_CLASS(mm_compaction_suitable_template,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(enum zone_type, idx)
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__field(int, order)
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__field(int, ret)
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),
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TP_fast_assign(
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__entry->nid = zone_to_nid(zone);
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__entry->idx = zone_idx(zone);
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__entry->order = order;
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__entry->ret = ret;
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),
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TP_printk("node=%d zone=%-8s order=%d ret=%s",
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__entry->nid,
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__print_symbolic(__entry->idx, ZONE_TYPE),
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__entry->order,
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__print_symbolic(__entry->ret, COMPACTION_STATUS))
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);
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DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_finished,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret)
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);
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DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_suitable,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret)
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);
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DECLARE_EVENT_CLASS(mm_compaction_defer_template,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(enum zone_type, idx)
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__field(int, order)
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__field(unsigned int, considered)
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__field(unsigned int, defer_shift)
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__field(int, order_failed)
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),
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TP_fast_assign(
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__entry->nid = zone_to_nid(zone);
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__entry->idx = zone_idx(zone);
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__entry->order = order;
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__entry->considered = zone->compact_considered;
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__entry->defer_shift = zone->compact_defer_shift;
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__entry->order_failed = zone->compact_order_failed;
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),
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TP_printk("node=%d zone=%-8s order=%d order_failed=%d consider=%u limit=%lu",
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__entry->nid,
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__print_symbolic(__entry->idx, ZONE_TYPE),
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__entry->order,
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__entry->order_failed,
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__entry->considered,
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1UL << __entry->defer_shift)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_deferred,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_defer_compaction,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_defer_reset,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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TRACE_EVENT(mm_compaction_kcompactd_sleep,
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TP_PROTO(int nid),
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TP_ARGS(nid),
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TP_STRUCT__entry(
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__field(int, nid)
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),
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TP_fast_assign(
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__entry->nid = nid;
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),
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TP_printk("nid=%d", __entry->nid)
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);
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DECLARE_EVENT_CLASS(kcompactd_wake_template,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(int, order)
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__field(enum zone_type, classzone_idx)
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),
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TP_fast_assign(
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__entry->nid = nid;
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__entry->order = order;
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__entry->classzone_idx = classzone_idx;
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),
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TP_printk("nid=%d order=%d classzone_idx=%-8s",
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__entry->nid,
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__entry->order,
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__print_symbolic(__entry->classzone_idx, ZONE_TYPE))
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);
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DEFINE_EVENT(kcompactd_wake_template, mm_compaction_wakeup_kcompactd,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx)
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);
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DEFINE_EVENT(kcompactd_wake_template, mm_compaction_kcompactd_wake,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx)
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);
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#endif
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#endif /* _TRACE_COMPACTION_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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