From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Thu, 7 Dec 2006 04:34:34 +0000 (-0800)
Subject: [PATCH] suspend to disk fails if gdb is suspended with a traced child
X-Git-Tag: v2.6.20-rc1~145^2^2~273
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3eb1b3a40722cbb46631db373af66d13d1e7ac81;p=linux-2.6

[PATCH] suspend to disk fails if gdb is suspended with a traced child

Fix http://bugzilla.kernel.org/show_bug.cgi?id=7534

Fix the freezing of processes so that it won't fail if there is a traced
process the parent of which has been stopped.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: maurice barnum <pixi+kbug@burble.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/kernel/power/process.c b/kernel/power/process.c
index cba8a5890e..1badb9a89a 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -97,7 +97,9 @@ int freeze_processes(void)
 				continue;
 			if (frozen(p))
 				continue;
-			if (p->state == TASK_TRACED && frozen(p->parent)) {
+			if (p->state == TASK_TRACED &&
+			    (frozen(p->parent) ||
+			     p->parent->state == TASK_STOPPED)) {
 				cancel_freezing(p);
 				continue;
 			}