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[IA64] Fill holes in FIXADDR_USER space with zero pages.

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This fixes an oops reported by Jason Baron.

Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
David Mosberger-Tang
2005-06-08 10:45:00 -07:00
committed by Tony Luck
parent 2bfe94905d
commit ad597bd518
2 changed files with 23 additions and 4 deletions
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8
include/asm-ia64/pgtable.h
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@@ -8,7 +8,7 @@
* This hopefully works with any (fixed) IA-64 page-size, as defined
* in <asm/page.h>.
*
* Copyright (C) 1998-2004 Hewlett-Packard Co
* Copyright (C) 1998-2005 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
@@ -551,7 +551,11 @@ do { \
/* These tell get_user_pages() that the first gate page is accessible from user-level. */
#define FIXADDR_USER_START GATE_ADDR
#define FIXADDR_USER_END (GATE_ADDR + 2*PERCPU_PAGE_SIZE)
#ifdef HAVE_BUGGY_SEGREL
# define FIXADDR_USER_END (GATE_ADDR + 2*PAGE_SIZE)
#else
# define FIXADDR_USER_END (GATE_ADDR + 2*PERCPU_PAGE_SIZE)
#endif
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY