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authorMike Frysinger <vapier@gentoo.org>2009-04-23 21:28:32 +0000
committerMike Frysinger <vapier@gentoo.org>2010-05-21 09:03:15 -0400
commitf074e48e0a54d8c1370f319ef95e71f796cd8048 (patch)
treeee170cbbf14310c581a1f1b21e6215ede2a04eb1 /arch/blackfin/include/asm/pgtable.h
parent7a9b149212f3716c598afe973b6261fd58453b7a (diff)
downloadlinux-f074e48e0a54d8c1370f319ef95e71f796cd8048.tar.bz2
Blackfin: drop unused bad_page pages and move zero_page to the bss
The empty_bad_page/empty_bad_page_table pages are unused, so punt them. The zero_page is always allocated, so push it out to the bss to speed up the booting process a bit and pack data nicer. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/include/asm/pgtable.h')
-rw-r--r--arch/blackfin/include/asm/pgtable.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h
index 821c699c2238..dcca3e6d6e80 100644
--- a/arch/blackfin/include/asm/pgtable.h
+++ b/arch/blackfin/include/asm/pgtable.h
@@ -80,7 +80,8 @@ PTE_BIT_FUNC(mkyoung, |= _PAGE_ACCESSED);
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
*/
-#define ZERO_PAGE(vaddr) (virt_to_page(0))
+#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)
+extern char empty_zero_page[];
extern unsigned int kobjsize(const void *objp);