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Date:	Fri, 27 Oct 2006 21:56:52 +0400
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Andrew Morton <akpm@...l.org>
Cc:	Shailabh Nagar <nagar@...son.ibm.com>,
	Balbir Singh <balbir@...ibm.com>, Jay Lan <jlan@....com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 7/6] fill_tgid: cleanup delays accounting

fill_tgid() should skip not only an already exited group leader. If the
task has ->exit_state != 0 it already did exit_notify(), so it also did
fill_tgid_exit()->delayacct_add_tsk(->signal->stats) and we should skip
it to avoid a double accounting.

This patch doesn't close the race completely, but it cleanups the code.

Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

--- STATS/kernel/taskstats.c~7_estate	2006-10-27 03:03:40.000000000 +0400
+++ STATS/kernel/taskstats.c	2006-10-27 21:34:26.000000000 +0400
@@ -235,7 +235,7 @@ static int fill_tgid(pid_t tgid, struct 
 
 	tsk = first;
 	do {
-		if (tsk->exit_state == EXIT_ZOMBIE && thread_group_leader(tsk))
+		if (tsk->exit_state)
 			continue;
 		/*
 		 * Accounting subsystem can call its functions here to

-
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