Commit 577f183a authored Dec 21, 2015 by Michael S. Tsirkin

x86/um: reuse asm-generic/barrier.h



On x86/um CONFIG_SMP is never defined.  As a result, several macros
match the asm-generic variant exactly. Drop the local definitions and
pull in asm-generic/barrier.h instead.

This is in preparation to refactoring this code area.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

parent fa083e28

arch/x86/um/asm/barrier.h

+1 −8

Original line number	Diff line number	Diff line
		@@ -36,13 +36,6 @@
		#endif /* CONFIG_X86_PPRO_FENCE */
		#define dma_wmb() barrier()

		#define smp_mb() barrier()
		#define smp_rmb() barrier()
		#define smp_wmb() barrier()

		#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); barrier(); } while (0)

		#define read_barrier_depends() do { } while (0)
		#define smp_read_barrier_depends() do { } while (0)
		#include <asm-generic/barrier.h>

		#endif

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