[PATCH] fix oom_kill_task

[Colin Leroy]

Hi,

oom_kill_task's comment states that we should be careful about not sending 
SIGKILL to processes with SYS_CAP_RAWIO, then the code happily sends it 
anyway.

Here's a patch that fixes that.

Signed-Off-By: Colin Leroy <colin@xxxxxxxxxx>
--- a/mm/oom_kill.c	2005-09-09 17:29:08.000000000 +0200
+++ b/mm/oom_kill.c	2005-09-09 17:29:10.000000000 +0200
@@ -199,7 +199,12 @@ static void __oom_kill_task(task_t *p)
 	p->time_slice = HZ;
 	set_tsk_thread_flag(p, TIF_MEMDIE);
 
-	force_sig(SIGKILL, p);
+	/* This process has hardware access, be more careful. */
+	if (cap_t(p->cap_effective) & CAP_TO_MASK(CAP_SYS_RAWIO)) {
+		force_sig(SIGTERM, p);
+	} else {
+		force_sig(SIGKILL, p);
+	}
 }
 
 static struct mm_struct *oom_kill_task(task_t *p)
-
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