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arm: Export empty_zero_page for ZERO_PAGE usage in modules. 

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>
hifive-unleashed-5.1
Aneesh Kumar K.V 2008-04-29 08:11:12 -04:00 committed by Theodore Ts'o
parent e65187e6d0
commit 3653f3abe3
1 changed files with 1 additions and 0 deletions
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arch/arm/mm/mmu.c
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@ -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.