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authorDave McCracken <dmccr@us.ibm.com>2006-09-26 10:31:48 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 19:48:51 +0400
commit46a82b2d5591335277ed2930611f6acb4ce654ed (patch)
treee90bc1843701af2012bae92564f7109027a8244f /include/asm-alpha/mmzone.h
parentd2e7b7d0aa021847c59f882b066e7d3812902870 (diff)
downloadlinux-46a82b2d5591335277ed2930611f6acb4ce654ed.tar.xz
[PATCH] Standardize pxx_page macros
One of the changes necessary for shared page tables is to standardize the pxx_page macros. pte_page and pmd_page have always returned the struct page associated with their entry, while pte_page_kernel and pmd_page_kernel have returned the kernel virtual address. pud_page and pgd_page, on the other hand, return the kernel virtual address. Shared page tables needs pud_page and pgd_page to return the actual page structures. There are very few actual users of these functions, so it is simple to standardize their usage. Since this is basic cleanup, I am submitting these changes as a standalone patch. Per Hugh Dickins' comments about it, I am also changing the pxx_page_kernel macros to pxx_page_vaddr to clarify their meaning. Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-alpha/mmzone.h')
-rw-r--r--include/asm-alpha/mmzone.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-alpha/mmzone.h b/include/asm-alpha/mmzone.h
index 64d0ab98fcd8..8af56ce346ad 100644
--- a/include/asm-alpha/mmzone.h
+++ b/include/asm-alpha/mmzone.h
@@ -75,6 +75,7 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32))
+#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> 32))
#define pte_pfn(pte) (pte_val(pte) >> 32)
#define mk_pte(page, pgprot) \