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authorDave McCracken <dmccr@us.ibm.com>2006-09-26 08:31:48 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 17:48:51 +0200
commit46a82b2d5591335277ed2930611f6acb4ce654ed (patch)
treee90bc1843701af2012bae92564f7109027a8244f /include/asm-sparc/pgtable.h
parent[PATCH] fix potential stack overflow in mm/slab.c (diff)
downloadlinux-46a82b2d5591335277ed2930611f6acb4ce654ed.tar.xz
linux-46a82b2d5591335277ed2930611f6acb4ce654ed.zip
[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-sparc/pgtable.h')
-rw-r--r--include/asm-sparc/pgtable.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index 226c6475c9a2..4f0a5ba0d6a0 100644
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -143,10 +143,10 @@ extern unsigned long empty_zero_page;
/*
*/
BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t)
-BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page, pgd_t)
+BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t)
#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd)
-#define pgd_page(pgd) BTFIXUP_CALL(pgd_page)(pgd)
+#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd)
BTFIXUPDEF_SETHI(none_mask)
BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)