linux-kernel - [PATCH 2/2] posix-timers: do_schedule_next_timer: fix the setting of ->si

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Message-ID: <20080723165205.GA4295@tv-sign.ru>
Date:	Wed, 23 Jul 2008 20:52:05 +0400
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Mark McLoughlin <markmc@...hat.com>,
	Oliver Pinter <oliver.pntr@...il.com>,
	Roland McGrath <roland@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: [PATCH 2/2] posix-timers: do_schedule_next_timer: fix the setting of ->si_overrun

do_schedule_next_timer() sets info->si_overrun = timr->it_overrun_last,
this discards the already accumulated overruns.

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

--- 26-rc2/kernel/posix-timers.c~2_SNT_OVERRUN	2008-07-23 15:04:18.000000000 +0400
+++ 26-rc2/kernel/posix-timers.c	2008-07-23 20:24:05.000000000 +0400
@@ -289,7 +289,7 @@ void do_schedule_next_timer(struct sigin
 		else
 			schedule_next_timer(timr);
 
-		info->si_overrun = timr->it_overrun_last;
+		info->si_overrun += timr->it_overrun_last;
 	}
 
 	if (timr)

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