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mm, oom: change type of oom_score_adj to short

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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>
This commit is contained in:
David Rientjes
2012-12-11 16:02:54 -08:00
committed by Linus Torvalds
parent fa26437517
commit a9c58b907d
9 changed files with 31 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/trace/events/oom.h
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@@ -14,7 +14,7 @@ TRACE_EVENT(oom_score_adj_update,
TP_STRUCT__entry(
__field( pid_t, pid)
__array( char, comm, TASK_COMM_LEN )
__field( int, oom_score_adj)
__field( short, oom_score_adj)
),
TP_fast_assign(
@@ -23,7 +23,7 @@ TRACE_EVENT(oom_score_adj_update,
__entry->oom_score_adj = task->signal->oom_score_adj;
),
TP_printk("pid=%d comm=%s oom_score_adj=%d",
TP_printk("pid=%d comm=%s oom_score_adj=%hd",
__entry->pid, __entry->comm, __entry->oom_score_adj)
);