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| author | Andi Kleen <ak@suse.de> | 2005-09-12 18:49:24 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-12 10:49:57 -0700 |
| commit | b9aac10dddd927f0b9cfcca19a272ded87015574 (patch) | |
| tree | 4a841306db9b3fb94f7b4ae550cac2c994343dba /include/asm-x86_64/page.h | |
| parent | 0a43e4bf7489074c667f24b9670ecd88f6eb0a07 (diff) | |
| download | lwn-b9aac10dddd927f0b9cfcca19a272ded87015574.tar.gz lwn-b9aac10dddd927f0b9cfcca19a272ded87015574.zip | |
[PATCH] x86-64: Remove redundant max_mapnr and replace with end_pfn
The FLATMEM people added it, but there doesn't seem a good reason
because end_pfn is identical.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64/page.h')
| -rw-r--r-- | include/asm-x86_64/page.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h index 135ffaa0393b..e5ab4d231f2c 100644 --- a/include/asm-x86_64/page.h +++ b/include/asm-x86_64/page.h @@ -32,6 +32,8 @@ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ +extern unsigned long end_pfn; + void clear_page(void *); void copy_page(void *, void *); @@ -111,7 +113,7 @@ typedef struct { unsigned long pgprot; } pgprot_t; #ifdef CONFIG_FLATMEM #define pfn_to_page(pfn) (mem_map + (pfn)) #define page_to_pfn(page) ((unsigned long)((page) - mem_map)) -#define pfn_valid(pfn) ((pfn) < max_mapnr) +#define pfn_valid(pfn) ((pfn) < end_pfn) #endif #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) |