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arm: Export empty_zero_page for ZERO_PAGE usage in modules.
author
Aneesh Kumar K.V
<aneesh.kumar@linux.vnet.ibm.com>
Tue, 29 Apr 2008 12:11:12 +0000
(08:11 -0400)
committer
Theodore Ts'o
<tytso@mit.edu>
Tue, 29 Apr 2008 12:11:12 +0000
(08:11 -0400)
ext4 uses ZERO_PAGE(0) to zero out blocks. We need to export
different symbols in different arches for the usage of ZERO_PAGE
in modules.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
arch/arm/mm/mmu.c
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diff --git
a/arch/arm/mm/mmu.c
b/arch/arm/mm/mmu.c
index
d41a75e
..
2d6d682
100644
(file)
--- a/
arch/arm/mm/mmu.c
+++ b/
arch/arm/mm/mmu.c
@@
-35,6
+35,7
@@
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
* zero-initialized data and COW.
*/
struct page *empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
/*
* The pmd table for the upper-most set of pages.