linux-kernel - [PATCH -mm] freezer: Remove PF_NOFREEZE from handle

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Message-Id: <200704071814.25588.rjw@sisk.pl>
Date:	Sat, 7 Apr 2007 18:14:24 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Gautham R Shenoy <ego@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Nigel Cunningham <ncunningham@...uxmail.org>,
	Pavel Machek <pavel@....cz>
Subject: [PATCH -mm] freezer: Remove PF_NOFREEZE from handle_initrd

From: Rafael J. Wysocki <rjw@...k.pl>

Make handle_initrd() call try_to_freeze() in a suitable place instead of setting
PF_NOFREEZE for the current task.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 init/do_mounts_initrd.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Index: linux-2.6.21-rc6/init/do_mounts_initrd.c
===================================================================
--- linux-2.6.21-rc6.orig/init/do_mounts_initrd.c
+++ linux-2.6.21-rc6/init/do_mounts_initrd.c
@@ -55,11 +55,12 @@ static void __init handle_initrd(void)
 	sys_mount(".", "/", NULL, MS_MOVE, NULL);
 	sys_chroot(".");
 
-	current->flags |= PF_NOFREEZE;
 	pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
 	if (pid > 0) {
-		while (pid != sys_wait4(-1, NULL, 0, NULL))
+		while (pid != sys_wait4(-1, NULL, 0, NULL)) {
+			try_to_freeze();
 			yield();
+		}
 	}
 
 	/* move initrd to rootfs' /old */
-
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