2 files changed, 30 insertions, 1 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 5fe94b82e4c0..2cce9f343ad0 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -611,6 +611,33 @@ config RT_GROUP_SCHED
 
 endif #CGROUP_SCHED
 
+config BLK_CGROUP
+        tristate "Block IO controller"
+        depends on CGROUPS && BLOCK
+        default n
+        ---help---
+        Generic block IO controller cgroup interface. This is the common
+        cgroup interface which should be used by various IO controlling
+        policies.
+
+        Currently, CFQ IO scheduler uses it to recognize task groups and
+        control disk bandwidth allocation (proportional time slice allocation)
+        to such task groups.
+
+        This option only enables generic Block IO controller infrastructure.
+        One needs to also enable actual IO controlling logic in CFQ for it
+        to take effect. (CONFIG_CFQ_GROUP_IOSCHED=y).
+
+        See Documentation/cgroups/blkio-controller.txt for more information.
+
+config DEBUG_BLK_CGROUP
+        bool "Enable Block IO controller debugging"
+        depends on BLK_CGROUP
+        default n
+        ---help---
+        Enable some debugging help. Currently it exports additional stat
+        files in a cgroup which can be useful for debugging.
+
 endif # CGROUPS
 
 config MM_OWNER
diff --git a/init/main.c b/init/main.c
index 5c8540271529..3bdb152f412f 100644
--- a/init/main.c
+++ b/init/main.c
@@ -62,6 +62,7 @@
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <linux/idr.h>
+#include <linux/kgdb.h>
 #include <linux/ftrace.h>
 #include <linux/async.h>
 #include <linux/kmemcheck.h>
@@ -566,7 +567,7 @@ asmlinkage void __init start_kernel(void)
         setup_per_cpu_areas();
         smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
 
-        build_all_zonelists();
+        build_all_zonelists(NULL);
         page_alloc_init();
 
         printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
@@ -675,6 +676,7 @@ asmlinkage void __init start_kernel(void)
         buffer_init();
         key_init();
         security_init();
+        dbg_late_init();
         vfs_caches_init(totalram_pages);
         signals_init();
         /* rootfs populating might need page-writeback */