Commit 8baabde6 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki Committed by Len Brown

Freezer: Fix s2disk resume from initrd

Add appropriate freezer annotations to handle_initrd(), so that it's possible
to resume from disk from an initrd.

http://bugzilla.kernel.org/show_bug.cgi?id=9345Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Chris Friedhoff <chris@friedhoff.org>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 2ffbb837
......@@ -55,12 +55,18 @@ static void __init handle_initrd(void)
sys_mount(".", "/", NULL, MS_MOVE, NULL);
sys_chroot(".");
/*
* In case that a resume from disk is carried out by linuxrc or one of
* its children, we need to tell the freezer not to wait for us.
*/
current->flags |= PF_FREEZER_SKIP;
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid > 0)
while (pid != sys_wait4(-1, NULL, 0, NULL)) {
try_to_freeze();
while (pid != sys_wait4(-1, NULL, 0, NULL))
yield();
}
current->flags &= ~PF_FREEZER_SKIP;
/* move initrd to rootfs' /old */
sys_fchdir(old_fd);
......
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