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| author | Richard Weinberger <richard@nod.at> | 2015-03-18 21:42:54 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2015-04-13 21:00:58 +0200 |
| commit | 28fa468f53163bc0b867b4cc75a9e36e7ed4dbbd (patch) | |
| tree | 5421b0046c8143797630da85db9a9b72c488f9f2 /arch/x86/um | |
| parent | d0b5e15f0c0fdd759dd3dd48dc2dc2e7199e0da0 (diff) | |
| download | linux-28fa468f53163bc0b867b4cc75a9e36e7ed4dbbd.tar.gz linux-28fa468f53163bc0b867b4cc75a9e36e7ed4dbbd.tar.bz2 linux-28fa468f53163bc0b867b4cc75a9e36e7ed4dbbd.zip | |
um: Remove broken SMP support
At times where UML used the TT mode to operate it had
kind of SMP support. It never got finished nor was
stable.
Let's rip out that cruft and stop confusing developers
which do tree-wide SMP cleanups.
If someone wants SMP support UML it has do be done from scratch.
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/x86/um')
| -rw-r--r-- | arch/x86/um/asm/barrier.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index 2d7d9a1f5b53..aec75a5d8722 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h @@ -36,22 +36,11 @@ #endif /* CONFIG_X86_PPRO_FENCE */ #define dma_wmb() barrier() -#ifdef CONFIG_SMP - -#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 */ - #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #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) |