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x86: remove suprious ifdefs from pageattr.c

The .rodata section really should just be read only; the config option
is there to make breaking up the 2Mb page an option (so people whos machines
give more performance for the 2Mb case can opt to do so).
But when the page gets split anyway, this is no longer an issue, so
clean up the code and remove the ifdefs

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arjan van de Ven 17 年之前
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cc842b82cc
共有 1 個文件被更改,包括 0 次插入3 次删除
  1. 0 3
      arch/x86/mm/pageattr.c

+ 0 - 3
arch/x86/mm/pageattr.c

@@ -167,8 +167,6 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address)
 	if (within(address, virt_to_highmap(_text), virt_to_highmap(_etext)))
 		pgprot_val(forbidden) |= _PAGE_NX;
 
-
-#ifdef CONFIG_DEBUG_RODATA
 	/* The .rodata section needs to be read-only */
 	if (within(address, (unsigned long)__start_rodata,
 				(unsigned long)__end_rodata))
@@ -179,7 +177,6 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address)
 	if (within(address, virt_to_highmap(__start_rodata),
 				virt_to_highmap(__end_rodata)))
 		pgprot_val(forbidden) |= _PAGE_RW;
-#endif
 
 	prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));