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[PATCH] x86_64: fix USER_PTRS_PER_PGD
author
Jan Beulich
<jbeulich@novell.com>
Sun, 26 Feb 2006 03:18:25 +0000
(
04:18
+0100)
committer
Linus Torvalds
<torvalds@g5.osdl.org>
Sun, 26 Feb 2006 17:53:30 +0000
(09:53 -0800)
The value, while currently unused in the native kernel, was off by one.
Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
include/asm-x86_64/pgtable.h
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diff --git
a/include/asm-x86_64/pgtable.h
b/include/asm-x86_64/pgtable.h
index 8fbf4dd72115da164273d16b90df27ff607638e1..715fd94cf5771b2ceedcbc26a972acee7dad7269 100644
(file)
--- a/
include/asm-x86_64/pgtable.h
+++ b/
include/asm-x86_64/pgtable.h
@@
-131,7
+131,7
@@
static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
-#define USER_PTRS_PER_PGD (
TASK_SIZE/PGDIR_SIZE
)
+#define USER_PTRS_PER_PGD (
(TASK_SIZE-1)/PGDIR_SIZE+1
)
#define FIRST_USER_ADDRESS 0
#ifndef __ASSEMBLY__