git.ipfire.org Git - thirdparty/openembedded/openembedded-core-contrib.git/blob

   1 From 50b6962016b824dfac254b8f36fc6cac301c8a8d Mon Sep 17 00:00:00 2001
   2 From: Arjan van de Ven <arjan@linux.intel.com>
   3 Date: Sun, 20 Jul 2008 10:20:49 -0700
   4 Subject: [PATCH] fastboot: make fastboot a config option
   5
   6 to mitigate the risks of async bootup, make fastboot a configuration
   7 option...
   8
   9 Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
  10 Signed-off-by: Ingo Molnar <mingo@elte.hu>
  11 ---
  12  init/Kconfig |   11 +++++++++++
  13  init/main.c  |    4 ++++
  14  2 files changed, 15 insertions(+), 0 deletions(-)
  15
  16 diff --git a/init/Kconfig b/init/Kconfig
  17 index 6199d11..7545c8b 100644
  18 --- a/init/Kconfig
  19 +++ b/init/Kconfig
  20 @@ -524,6 +524,17 @@ config CC_OPTIMIZE_FOR_SIZE
  21
  22           If unsure, say N.
  23
  24 +config FASTBOOT
  25 +       bool "Fast boot support"
  26 +       help
  27 +         The fastboot option will cause the kernel to try to optimize
  28 +         for faster boot.
  29 +
  30 +         This includes doing some of the device initialization asynchronous
  31 +         as well as opportunistically trying to mount the root fs early.
  32 +
  33 +         If unsure, say N.
  34 +
  35  config SYSCTL
  36         bool
  37
  38 diff --git a/init/main.c b/init/main.c
  39 index 6be1756..bb97add 100644
  40 --- a/init/main.c
  41 +++ b/init/main.c
  42 @@ -776,7 +776,11 @@ static void __init do_initcalls(void)
  43         for (call = __initcall_start; call < __initcall_end; call++) {
  44                 if (phase == 0 && call >= __async_initcall_start) {
  45                         phase = 1;
  46 +#ifdef CONFIG_FASTBOOT
  47                         queue_work(async_init_wq, &async_work);
  48 +#else
  49 +                       do_async_initcalls(NULL);
  50 +#endif
  51                 }
  52                 if (phase == 1 && call >= __async_initcall_end)
  53                         phase = 2;
  54 --
  55 1.5.4.3
  56