Quelle  oom.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM oom

#if !defined(_TRACE_OOM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_OOM_H
#include <linux/tracepoint.h>
#include <trace/events/mmflags.h>

#define PG_COUNT_TO_KB(x) ((x) << (PAGE_SHIFT - 10))

TRACE_EVENT(oom_score_adj_update,

 TP_PROTO(struct task_struct *task),

 TP_ARGS(task),

 TP_STRUCT__entry(
  __field( pid_t, pid)
  __array( char, comm, TASK_COMM_LEN )
  __field( short, oom_score_adj)
 ),

 TP_fast_assign(
  __entry->pid = task->pid;
  memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
  __entry->oom_score_adj = task->signal->oom_score_adj;
 ),

 TP_printk("pid=%d comm=%s oom_score_adj=%hd",
  __entry->pid, __entry->comm, __entry->oom_score_adj)
);

TRACE_EVENT(reclaim_retry_zone,

 TP_PROTO(struct zoneref *zoneref,
  int order,
  unsigned long reclaimable,
  unsigned long available,
  unsigned long min_wmark,
  int no_progress_loops,
  bool wmark_check),

 TP_ARGS(zoneref, order, reclaimable, available, min_wmark, no_progress_loops, wmark_check),

 TP_STRUCT__entry(
  __field( int, node)
  __field( int, zone_idx)
  __field( int, order)
  __field( unsigned long, reclaimable)
  __field( unsigned long, available)
  __field( unsigned long, min_wmark)
  __field( int, no_progress_loops)
  __field( bool, wmark_check)
 ),

 TP_fast_assign(
  __entry->node = zonelist_node_idx(zoneref);
  __entry->zone_idx = zonelist_zone_idx(zoneref);
  __entry->order = order;
  __entry->reclaimable = reclaimable;
  __entry->available = available;
  __entry->min_wmark = min_wmark;
  __entry->no_progress_loops = no_progress_loops;
  __entry->wmark_check = wmark_check;
 ),

 TP_printk("node=%d zone=%-8s order=%d reclaimable=%lu available=%lu min_wmark=%lu no_progress_loops=%d wmark_check=%d",
   __entry->node, __print_symbolic(__entry->zone_idx, ZONE_TYPE),
   __entry->order,
   __entry->reclaimable, __entry->available, __entry->min_wmark,
   __entry->no_progress_loops,
   __entry->wmark_check)
);

TRACE_EVENT(mark_victim,
 TP_PROTO(struct task_struct *task, uid_t uid),

 TP_ARGS(task, uid),

 TP_STRUCT__entry(
  __field(int, pid)
  __string(comm, task->comm)
  __field(unsigned long, total_vm)
  __field(unsigned long, anon_rss)
  __field(unsigned long, file_rss)
  __field(unsigned long, shmem_rss)
  __field(uid_t, uid)
  __field(unsigned long, pgtables)
  __field(short, oom_score_adj)
 ),

 TP_fast_assign(
  __entry->pid = task->pid;
  __assign_str(comm);
  __entry->total_vm = PG_COUNT_TO_KB(task->mm->total_vm);
  __entry->anon_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_ANONPAGES));
  __entry->file_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_FILEPAGES));
  __entry->shmem_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_SHMEMPAGES));
  __entry->uid = uid;
  __entry->pgtables = mm_pgtables_bytes(task->mm) >> 10;
  __entry->oom_score_adj = task->signal->oom_score_adj;
 ),

 TP_printk("pid=%d comm=%s total-vm=%lukB anon-rss=%lukB file-rss:%lukB shmem-rss:%lukB uid=%u pgtables=%lukB oom_score_adj=%hd",
  __entry->pid,
  __get_str(comm),
  __entry->total_vm,
  __entry->anon_rss,
  __entry->file_rss,
  __entry->shmem_rss,
  __entry->uid,
  __entry->pgtables,
  __entry->oom_score_adj
 )
);

TRACE_EVENT(wake_reaper,
 TP_PROTO(int pid),

 TP_ARGS(pid),

 TP_STRUCT__entry(
  __field(int, pid)
 ),

 TP_fast_assign(
  __entry->pid = pid;
 ),

 TP_printk("pid=%d", __entry->pid)
);

TRACE_EVENT(start_task_reaping,
 TP_PROTO(int pid),

 TP_ARGS(pid),

 TP_STRUCT__entry(
  __field(int, pid)
 ),

 TP_fast_assign(
  __entry->pid = pid;
 ),

 TP_printk("pid=%d", __entry->pid)
);

TRACE_EVENT(finish_task_reaping,
 TP_PROTO(int pid),

 TP_ARGS(pid),

 TP_STRUCT__entry(
  __field(int, pid)
 ),

 TP_fast_assign(
  __entry->pid = pid;
 ),

 TP_printk("pid=%d", __entry->pid)
);

TRACE_EVENT(skip_task_reaping,
 TP_PROTO(int pid),

 TP_ARGS(pid),

 TP_STRUCT__entry(
  __field(int, pid)
 ),

 TP_fast_assign(
  __entry->pid = pid;
 ),

 TP_printk("pid=%d", __entry->pid)
);

#ifdef CONFIG_COMPACTION
TRACE_EVENT(compact_retry,

 TP_PROTO(int order,
  enum compact_priority priority,
  enum compact_result result,
  int retries,
  int max_retries,
  bool ret),

 TP_ARGS(order, priority, result, retries, max_retries, ret),

 TP_STRUCT__entry(
  __field( int, order)
  __field( int, priority)
  __field( int, result)
  __field( int, retries)
  __field( int, max_retries)
  __field( bool, ret)
 ),

 TP_fast_assign(
  __entry->order = order;
  __entry->priority = priority;
  __entry->result = compact_result_to_feedback(result);
  __entry->retries = retries;
  __entry->max_retries = max_retries;
  __entry->ret = ret;
 ),

 TP_printk("order=%d priority=%s compaction_result=%s retries=%d max_retries=%d should_retry=%d",
   __entry->order,
   __print_symbolic(__entry->priority, COMPACTION_PRIORITY),
   __print_symbolic(__entry->result, COMPACTION_FEEDBACK),
   __entry->retries, __entry->max_retries,
   __entry->ret)
);
#endif /* CONFIG_COMPACTION */
#endif

/* This part must be outside protection */
#include <trace/define_trace.h>