From 281e0e3b34acb76a157576d27abc85c09fcf78e3 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 1 Oct 2007 01:20:10 -0700
Subject: [PATCH] hugetlb: fix clear_user_highpage arguments
The virtual address space argument of clear_user_highpage is supposed to be
the virtual address where the page being cleared will eventually be mapped.
This allows architectures with virtually indexed caches a few clever
tricks. That sort of trick falls over in painful ways if the virtual
address argument is wrong.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 84c795ee2d650..eab8c428cc932 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -42,7 +42,7 @@ static void clear_huge_page(struct page *page, unsigned long addr)
might_sleep();
for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); i++) {
cond_resched();
- clear_user_highpage(page + i, addr);
+ clear_user_highpage(page + i, addr + i * PAGE_SIZE);
}
}
--
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