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authorRafael J. Wysocki <rjw@sisk.pl>2007-11-21 02:50:17 +0100
committerLen Brown <len.brown@intel.com>2007-11-20 22:22:42 -0500
commit8baabde66c60a84781c718c28fe283ed411a7bd0 (patch)
tree0bd71f2f6277aeffafb223301dec3f483ebb4bb9 /init/do_mounts_initrd.c
parent2ffbb8377c7a0713baf6644e285adc27a5654582 (diff)
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 <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: Len Brown <len.brown@intel.com>
Diffstat (limited to 'init/do_mounts_initrd.c')
-rw-r--r--init/do_mounts_initrd.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index fd4fc12d262..614241b5200 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);