Commit a1bf9631 authored by Jiri Slaby's avatar Jiri Slaby Committed by Ingo Molnar
Browse files

x86, MM: virtual address debug, v2 



I've removed the test from phys_to_nid and made a function from __phys_addr
only when the debugging is enabled (on x86_32).

Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
Cc: tglx@linutronix.de
Cc: hpa@zytor.com
Cc: Mike Travis <travis@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: <x86@kernel.org>
Cc: linux-mm@kvack.org
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 59ea7463

arch/x86/mm/ioremap.c

+2 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ static inline int phys_addr_valid(unsigned long addr) 
	return 1;

}



#ifdef CONFIG_DEBUG_VIRTUAL

unsigned long __phys_addr(unsigned long x)

{

	/* VMALLOC_* aren't constants; not available at the boot time */
@@ -59,6 +60,7 @@ unsigned long __phys_addr(unsigned long x) 
	return x - PAGE_OFFSET;

}

EXPORT_SYMBOL(__phys_addr);

#endif



#endif

include/asm-x86/mmzone_64.h

+0 −1
Original line number Diff line number Diff line
@@ -29,7 +29,6 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) 
{

	unsigned nid;

	VIRTUAL_BUG_ON(!memnodemap);

	VIRTUAL_BUG_ON((addr >> memnode_shift) >= memnodemapsize);

	nid = memnodemap[addr >> memnode_shift];

	VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);

	return nid;

include/asm-x86/page_32.h

+4 −0
Original line number Diff line number Diff line
@@ -65,7 +65,11 @@ typedef struct page *pgtable_t; 


#ifndef __ASSEMBLY__

#define __phys_addr_const(x)	((x) - PAGE_OFFSET)

#ifdef CONFIG_DEBUG_VIRTUAL

extern unsigned long __phys_addr(unsigned long);

#else

#define __phys_addr(x)		((x) - PAGE_OFFSET)

#endif

#define __phys_reloc_hide(x)	RELOC_HIDE((x), 0)



#ifdef CONFIG_FLATMEM

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