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

   1 From 3e6558b693dd1e69e3177bc248977f067a769f14 Mon Sep 17 00:00:00 2001
   2 From: Arjan van de Ven <arjan@linux.intel.com>
   3 Date: Sun, 20 Jul 2008 08:59:24 -0700
   4 Subject: [PATCH] fastboot: hold the BKL over the async init call sequence
   5
   6 Regular init calls are called with the BKL held; make sure
   7 the async init calls are also called with the BKL held.
   8 While this reduces parallelism a little, it does provide
   9 lock-for-lock compatibility. The hit to prallelism isn't too
  10 bad, most of the init calls are done immediately or actually
  11 block for their delays.
  12
  13 Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
  14 Signed-off-by: Ingo Molnar <mingo@elte.hu>
  15 ---
  16  init/main.c |    6 ++++++
  17  1 files changed, 6 insertions(+), 0 deletions(-)
  18
  19 diff --git a/init/main.c b/init/main.c
  20 index 6961de2..9e2aee8 100644
  21 --- a/init/main.c
  22 +++ b/init/main.c
  23 @@ -744,8 +744,14 @@ static void __init do_async_initcalls(struct work_struct *dummy)
  24  {
  25         initcall_t *call;
  26
  27 +       /*
  28 +        * For compatibility with normal init calls... take the BKL
  29 +        * not pretty, not desirable, but compatibility first
  30 +        */
  31 +       lock_kernel();
  32         for (call = __async_initcall_start; call < __async_initcall_end; call++)
  33                 do_one_initcall(*call);
  34 +       unlock_kernel();
  35  }
  36
  37  static struct workqueue_struct *async_init_wq;
  38 --
  39 1.5.4.3
  40