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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-11-21 02:50:17 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-11-20 22:22:42 -0500 |
| commit | 8baabde66c60a84781c718c28fe283ed411a7bd0 (patch) | |
| tree | 0bd71f2f6277aeffafb223301dec3f483ebb4bb9 | |
| parent | 2ffbb8377c7a0713baf6644e285adc27a5654582 (diff) | |
| download | linux-8baabde66c60a84781c718c28fe283ed411a7bd0.tar.gz linux-8baabde66c60a84781c718c28fe283ed411a7bd0.tar.bz2 linux-8baabde66c60a84781c718c28fe283ed411a7bd0.zip | |
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>
| -rw-r--r-- | init/do_mounts_initrd.c | 12 |
1 files 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); |