FRV: Do some cleanups

1. frv doesn't support SMP, remove the useless SMP bits.

2. frv has its own alloc_task_struct, so define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
   (I am not sure if frv should use generic alloc_task_struct().)

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
Amerigo Wang 2011-03-29 14:05:12 +01:00 committed by David Howells
parent 5ef9bdde9c
commit 5ca7202bc4
3 changed files with 2 additions and 10 deletions

View file

@ -361,7 +361,6 @@ menu "Power management options"
config ARCH_SUSPEND_POSSIBLE
def_bool y
depends on !SMP
source kernel/power/Kconfig
endmenu

View file

@ -45,21 +45,12 @@ do { \
#define wmb() asm volatile ("membar" : : :"memory")
#define read_barrier_depends() do { } while (0)
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
#define set_mb(var, value) \
do { xchg(&var, (value)); } while (0)
#else
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define smp_read_barrier_depends() do {} while(0)
#define set_mb(var, value) \
do { var = (value); barrier(); } while (0)
#endif
extern void die_if_kernel(const char *, ...) __attribute__((format(printf, 1, 2)));
extern void free_initmem(void);

View file

@ -21,6 +21,8 @@
#define THREAD_SIZE 8192
#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
/*
* low level task data that entry.S needs immediate access to
* - this struct should fit entirely inside of one cache line