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From: Hugh Dickins <hugh@veritas.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	Andi Kleen <ak@suse.de>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] stop c_p_a corrupting the pds
Date: Tue, 5 Feb 2008 22:26:01 +0000 (GMT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0802052218190.11822@blonde.site> (raw)

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>

--- 2.6.24-git/arch/x86/mm/pageattr.c	2008-02-05 16:43:45.000000000 +0000
+++ linux/arch/x86/mm/pageattr.c	2008-02-05 21:34:18.000000000 +0000
@@ -237,7 +237,6 @@ static void __set_pmd_pte(pte_t *kpte, u
 	if (!SHARED_KERNEL_PMD) {
 		struct page *page;
 
-		address = __pa(address);
 		list_for_each_entry(page, &pgd_list, lru) {
 			pgd_t *pgd;
 			pud_t *pud;

             reply	other threads:[~2008-02-05 22:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-05 22:26 Hugh Dickins [this message]
2008-02-05 22:27 ` [PATCH mm] " Hugh Dickins
2008-02-06  2:05   ` Valdis.Kletnieks
2008-02-06  4:49     ` Hugh Dickins
2008-02-06  8:26 ` [PATCH] " Ingo Molnar

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