diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 30 | ||||
| -rw-r--r-- | init/main.c | 4 |
2 files changed, 31 insertions, 3 deletions
diff --git a/init/Kconfig b/init/Kconfig index eb77e8ccde1..2cce9f343ad 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -604,14 +604,40 @@ config RT_GROUP_SCHED default n help This feature lets you explicitly allocate real CPU bandwidth - to users or control groups (depending on the "Basis for grouping tasks" - setting below. If enabled, it will also make it impossible to + to task groups. If enabled, it will also make it impossible to schedule realtime tasks for non-root users until you allocate realtime bandwidth for them. See Documentation/scheduler/sched-rt-group.txt for more information. 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 5c854027152..3bdb152f412 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 */ |