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stop c_p_a corrupting the pds
author
Hugh Dickins
<hugh@veritas.com>
Tue, 5 Feb 2008 22:26:01 +0000
(22:26 +0000)
committer
Linus Torvalds
<torvalds@woody.linux-foundation.org>
Tue, 5 Feb 2008 22:37:14 +0000
(14:37 -0800)
When change_page_attr splits a large page on x86_32 (without PAE), it is
currently corrupting every process's page directory: fix that by removing
the thinko which passes down a physical instead of a virtual address.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/mm/pageattr.c
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diff --git
a/arch/x86/mm/pageattr.c
b/arch/x86/mm/pageattr.c
index
bb55a78
..
16ce841
100644
(file)
--- a/
arch/x86/mm/pageattr.c
+++ b/
arch/x86/mm/pageattr.c
@@
-237,7
+237,6
@@
static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
if (!SHARED_KERNEL_PMD) {
struct page *page;
- address = __pa(address);
list_for_each_entry(page, &pgd_list, lru) {
pgd_t *pgd;
pud_t *pud;