mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-08 02:19:51 +01:00
Anshuman Khandual
4cc79b3303
This adds two trace events for base page and HugeTLB page migrations. These events, closely follow the implementation details like setting and removing of PTE migration entries, which are essential operations for migration. The new CREATE_TRACE_POINTS in <mm/rmap.c> covers both <events/migration.h> and <events/tlb.h> based trace events. Hence drop redundant CREATE_TRACE_POINTS from other places which could have otherwise conflicted during build. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Anshuman Khandual <[email protected]> Reported-by: kernel test robot <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Zi Yan <[email protected]> Cc: Naoya Horiguchi <[email protected]> Cc: John Hubbard <[email protected]> Cc: Matthew Wilcox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM migrate
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#if !defined(_TRACE_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MIGRATE_H
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#include <linux/tracepoint.h>
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#define MIGRATE_MODE \
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EM( MIGRATE_ASYNC, "MIGRATE_ASYNC") \
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EM( MIGRATE_SYNC_LIGHT, "MIGRATE_SYNC_LIGHT") \
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EMe(MIGRATE_SYNC, "MIGRATE_SYNC")
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#define MIGRATE_REASON \
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EM( MR_COMPACTION, "compaction") \
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EM( MR_MEMORY_FAILURE, "memory_failure") \
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EM( MR_MEMORY_HOTPLUG, "memory_hotplug") \
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EM( MR_SYSCALL, "syscall_or_cpuset") \
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EM( MR_MEMPOLICY_MBIND, "mempolicy_mbind") \
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EM( MR_NUMA_MISPLACED, "numa_misplaced") \
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EM( MR_CONTIG_RANGE, "contig_range") \
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EM( MR_LONGTERM_PIN, "longterm_pin") \
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EMe(MR_DEMOTION, "demotion")
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/*
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* First define the enums in the above macros to be exported to userspace
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* via TRACE_DEFINE_ENUM().
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) TRACE_DEFINE_ENUM(a);
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#define EMe(a, b) TRACE_DEFINE_ENUM(a);
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MIGRATE_MODE
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MIGRATE_REASON
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) {a, b},
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#define EMe(a, b) {a, b}
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TRACE_EVENT(mm_migrate_pages,
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TP_PROTO(unsigned long succeeded, unsigned long failed,
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unsigned long thp_succeeded, unsigned long thp_failed,
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unsigned long thp_split, enum migrate_mode mode, int reason),
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TP_ARGS(succeeded, failed, thp_succeeded, thp_failed,
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thp_split, mode, reason),
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TP_STRUCT__entry(
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__field( unsigned long, succeeded)
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__field( unsigned long, failed)
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__field( unsigned long, thp_succeeded)
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__field( unsigned long, thp_failed)
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__field( unsigned long, thp_split)
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__field( enum migrate_mode, mode)
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__field( int, reason)
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),
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TP_fast_assign(
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__entry->succeeded = succeeded;
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__entry->failed = failed;
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__entry->thp_succeeded = thp_succeeded;
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__entry->thp_failed = thp_failed;
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__entry->thp_split = thp_split;
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__entry->mode = mode;
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__entry->reason = reason;
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),
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TP_printk("nr_succeeded=%lu nr_failed=%lu nr_thp_succeeded=%lu nr_thp_failed=%lu nr_thp_split=%lu mode=%s reason=%s",
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__entry->succeeded,
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__entry->failed,
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__entry->thp_succeeded,
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__entry->thp_failed,
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__entry->thp_split,
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__print_symbolic(__entry->mode, MIGRATE_MODE),
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__print_symbolic(__entry->reason, MIGRATE_REASON))
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);
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TRACE_EVENT(mm_migrate_pages_start,
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TP_PROTO(enum migrate_mode mode, int reason),
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TP_ARGS(mode, reason),
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TP_STRUCT__entry(
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__field(enum migrate_mode, mode)
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__field(int, reason)
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),
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TP_fast_assign(
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__entry->mode = mode;
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__entry->reason = reason;
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),
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TP_printk("mode=%s reason=%s",
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__print_symbolic(__entry->mode, MIGRATE_MODE),
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__print_symbolic(__entry->reason, MIGRATE_REASON))
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);
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DECLARE_EVENT_CLASS(migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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__field(int, order)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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__entry->order = order;
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),
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TP_printk("addr=%lx, pte=%lx order=%d", __entry->addr, __entry->pte, __entry->order)
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);
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DEFINE_EVENT(migration_pte, set_migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order)
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);
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DEFINE_EVENT(migration_pte, remove_migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order)
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);
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#endif /* _TRACE_MIGRATE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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