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| author | Mike Frysinger <vapier@gentoo.org> | 2009-04-23 21:28:32 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-05-21 09:03:15 -0400 |
| commit | f074e48e0a54d8c1370f319ef95e71f796cd8048 (patch) | |
| tree | ee170cbbf14310c581a1f1b21e6215ede2a04eb1 /arch/blackfin/include/asm/pgtable.h | |
| parent | 7a9b149212f3716c598afe973b6261fd58453b7a (diff) | |
| download | linux-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.h | 3 |
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); |