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microblaze: Fix pfn_valid() for noMMU 

Configuring DEBUG_SLAB causes a noMMU kernel to die during initialization
with an invalid virtual address panic in kfree_debugcheck().
The panic is due to an improper definition of pfn_valid().

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
steve@digidescorp.com 2009-11-13 16:08:29 -06:00 committed by Michal Simek
parent 4f911b0daf
commit 5dd48a235c
1 changed files with 2 additions and 1 deletions
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3
arch/microblaze/include/asm/page.h
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@ -164,7 +164,8 @@ extern int page_is_ram(unsigned long pfn);
# endif /* CONFIG_MMU */
# ifndef CONFIG_MMU
# define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) <= max_mapnr)
# define pfn_valid(pfn) (((pfn) >= min_low_pfn) && \
((pfn) <= (min_low_pfn + max_mapnr)))
# define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
# else /* CONFIG_MMU */
# define ARCH_PFN_OFFSET (memory_start >> PAGE_SHIFT)