From 8baabde66c60a84781c718c28fe283ed411a7bd0 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 21 Nov 2007 02:50:17 +0100 Subject: 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=9345 Signed-off-by: Rafael J. Wysocki Cc: Pavel Machek Cc: Nigel Cunningham Cc: Ingo Molnar Cc: Chris Friedhoff Signed-off-by: Len Brown --- init/do_mounts_initrd.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index fd4fc12d2624..614241b5200c 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -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); -- cgit v1.2.3