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authorArjan van de Ven <arjan@linux.intel.com>2009-01-07 11:45:46 -0500
committerArjan van de Ven <arjan@linux.intel.com>2009-01-07 11:45:46 -0500
commit22a9d645677feefd402befd02edd59b122289ef1 (patch)
tree9f1215cc8f7f0e1c36b03882b2926cc26ccfa5ff /kernel/Makefile
parentede6f5aea054d3fb67c78857f7abdee602302043 (diff)
async: Asynchronous function calls to speed up kernel boot
Right now, most of the kernel boot is strictly synchronous, such that various hardware delays are done sequentially. In order to make the kernel boot faster, this patch introduces infrastructure to allow doing some of the initialization steps asynchronously, which will hide significant portions of the hardware delays in practice. In order to not change device order and other similar observables, this patch does NOT do full parallel initialization. Rather, it operates more in the way an out of order CPU does; the work may be done out of order and asynchronous, but the observable effects (instruction retiring for the CPU) are still done in the original sequence. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Diffstat (limited to 'kernel/Makefile')
-rw-r--r--kernel/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index e1c5bf3365c0..2921d90ce32f 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -9,7 +9,8 @@ obj-y = sched.o fork.o exec_domain.o panic.o printk.o \
9 rcupdate.o extable.o params.o posix-timers.o \ 9 rcupdate.o extable.o params.o posix-timers.o \
10 kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \ 10 kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
11 hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \ 11 hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
12 notifier.o ksysfs.o pm_qos_params.o sched_clock.o cred.o 12 notifier.o ksysfs.o pm_qos_params.o sched_clock.o cred.o \
13 async.o
13 14
14ifdef CONFIG_FUNCTION_TRACER 15ifdef CONFIG_FUNCTION_TRACER
15# Do not trace debug files and internal ftrace files 16# Do not trace debug files and internal ftrace files