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[PATCH] Pass vma argument to copy_user_highpage().

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To allow a more effective copy_user_highpage() on certain architectures,
a vma argument is added to the function and cow_user_page() allowing
the implementation of these functions to check for the VM_EXEC bit.

The main part of this patch was originally written by Ralf Baechle;
Atushi Nemoto did the the debugging.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Atsushi Nemoto 2006-12-12 17:14:55 +00:00 • committed by Linus Torvalds
parent 77fff4ae2b
commit 9de455b207
3 changed files with 10 additions and 9 deletions
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3
include/linux/highmem.h
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@ -98,7 +98,8 @@ static inline void memclear_highpage_flush(struct page *page, unsigned int offse
#ifndef __HAVE_ARCH_COPY_USER_HIGHPAGE
static inline void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr)
static inline void copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma)
{
char *vfrom, *vto;