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a9c58b907d
The maximum oom_score_adj is 1000 and the minimum oom_score_adj is -1000, so this range can be represented by the signed short type with no functional change. The extra space this frees up in struct signal_struct will be used for per-thread oom kill flags in the next patch. Signed-off-by: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: Anton Vorontsov <anton.vorontsov@linaro.org> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
33 lines
717 B
C
33 lines
717 B
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM oom
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#if !defined(_TRACE_OOM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_OOM_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(oom_score_adj_update,
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TP_PROTO(struct task_struct *task),
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TP_ARGS(task),
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TP_STRUCT__entry(
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__field( pid_t, pid)
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__array( char, comm, TASK_COMM_LEN )
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__field( short, oom_score_adj)
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),
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TP_fast_assign(
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__entry->pid = task->pid;
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memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
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__entry->oom_score_adj = task->signal->oom_score_adj;
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),
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TP_printk("pid=%d comm=%s oom_score_adj=%hd",
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__entry->pid, __entry->comm, __entry->oom_score_adj)
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);
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#endif
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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