sched: INIT_PREEMPT_COUNT

Pull the initial preempt_count value into a single
definition site.

Maintainers for: alpha, ia64 and m68k, please have a look,
your arch code is funny.

The header magic is a bit odd, but similar to the KERNEL_DS
one, CPP waits with expanding these macros until the
INIT_THREAD_INFO macro itself is expanded, which is in
arch/*/kernel/init_task.c where we've already included
sched.h so we're good.

Cc: tony.luck@intel.com
Cc: rth@twiddle.net
Cc: geert@linux-m68k.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
index bc5b2935ca53..c3aade36c330 100644
--- a/arch/cris/include/asm/thread_info.h
+++ b/arch/cris/include/asm/thread_info.h
@@ -50,8 +50,6 @@ struct thread_info {
 
 /*
  * macros/functions for gaining access to the thread information structure
- *
- * preempt_count needs to be 1 initially, until the scheduler is functional.
  */
 #ifndef __ASSEMBLY__
 #define INIT_THREAD_INFO(tsk)                           \
@@ -60,7 +58,7 @@ struct thread_info {
         .exec_domain    = &default_exec_domain,         \
         .flags          = 0,                            \
         .cpu            = 0,                            \
-        .preempt_count  = 1,                            \
+        .preempt_count  = INIT_PREEMPT_COUNT,           \
         .addr_limit     = KERNEL_DS,                    \
         .restart_block = {                              \
                        .fn = do_no_restart_syscall,     \