write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/x86/um/asm/barrier.h
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@@ -2,14 +2,7 @@
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 #ifndef _ASM_UM_BARRIER_H_
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 #define _ASM_UM_BARRIER_H_
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-#include <asm/asm.h>
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-#include <asm/segment.h>
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-#include <asm/cpufeatures.h>
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-#include <asm/cmpxchg.h>
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-#include <asm/nops.h>
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-
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-#include <linux/kernel.h>
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-#include <linux/irqflags.h>
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+#include <asm/alternative.h>
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 /*
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  * Force strict CPU ordering.
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@@ -29,9 +22,6 @@
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 #define wmb()	asm volatile("sfence" : : : "memory")
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 #endif /* CONFIG_X86_32 */
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-
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-#define dma_rmb()	barrier()
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-#define dma_wmb()	barrier()
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 #include <asm-generic/barrier.h>
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