diff options
Diffstat (limited to 'arch/x86/um')
| -rw-r--r-- | arch/x86/um/asm/barrier.h | 20 | ||||
| -rw-r--r-- | arch/x86/um/sys_call_table_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/um/sys_call_table_64.c | 3 |
3 files changed, 13 insertions, 12 deletions
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index cc04e67bfd05..2d7d9a1f5b53 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h @@ -29,20 +29,18 @@ #endif /* CONFIG_X86_32 */ -#define read_barrier_depends() do { } while (0) - -#ifdef CONFIG_SMP - -#define smp_mb() mb() #ifdef CONFIG_X86_PPRO_FENCE -#define smp_rmb() rmb() +#define dma_rmb() rmb() #else /* CONFIG_X86_PPRO_FENCE */ -#define smp_rmb() barrier() +#define dma_rmb() barrier() #endif /* CONFIG_X86_PPRO_FENCE */ +#define dma_wmb() barrier() -#define smp_wmb() barrier() +#ifdef CONFIG_SMP -#define smp_read_barrier_depends() read_barrier_depends() +#define smp_mb() mb() +#define smp_rmb() dma_rmb() +#define smp_wmb() barrier() #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) #else /* CONFIG_SMP */ @@ -50,11 +48,13 @@ #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 /* CONFIG_SMP */ +#define read_barrier_depends() do { } while (0) +#define smp_read_barrier_depends() do { } while (0) + /* * Stop RDTSC speculation. This is needed when you need to use RDTSC * (or get_cycles or vread that possibly accesses the TSC) in a defined diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c index 531d4269e2e3..bd16d6c370ec 100644 --- a/arch/x86/um/sys_call_table_32.c +++ b/arch/x86/um/sys_call_table_32.c @@ -34,7 +34,7 @@ typedef asmlinkage void (*sys_call_ptr_t)(void); extern asmlinkage void sys_ni_syscall(void); -const sys_call_ptr_t sys_call_table[] __cacheline_aligned = { +const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = { /* * Smells like a compiler bug -- it doesn't work * when the & below is removed. diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c index f2f0723070ca..5cdfa9db2217 100644 --- a/arch/x86/um/sys_call_table_64.c +++ b/arch/x86/um/sys_call_table_64.c @@ -31,6 +31,7 @@ #define stub_fork sys_fork #define stub_vfork sys_vfork #define stub_execve sys_execve +#define stub_execveat sys_execveat #define stub_rt_sigreturn sys_rt_sigreturn #define __SYSCALL_COMMON(nr, sym, compat) __SYSCALL_64(nr, sym, compat) @@ -46,7 +47,7 @@ typedef void (*sys_call_ptr_t)(void); extern void sys_ni_syscall(void); -const sys_call_ptr_t sys_call_table[] __cacheline_aligned = { +const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = { /* * Smells like a compiler bug -- it doesn't work * when the & below is removed. |