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| author | Andrew Morton | 2008-04-28 11:12:44 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-04-28 17:58:21 +0200 |
| commit | 726b80127239aeea9c8d8aad5b4e2c80313e3ce8 (patch) | |
| tree | 4b4df86f199f9bf9689f038132a8922f34a9c8d4 | |
| parent | kbuild: create a way to create preprocessor constants from C expressions (diff) | |
| download | kernel-qcow2-linux-726b80127239aeea9c8d8aad5b4e2c80313e3ce8.tar.gz kernel-qcow2-linux-726b80127239aeea9c8d8aad5b4e2c80313e3ce8.tar.xz kernel-qcow2-linux-726b80127239aeea9c8d8aad5b4e2c80313e3ce8.zip | |
page_mapping(): add ifdef around reference to swapper_space
This fixes the superh build when the pageflags patches are applied.
But it shouldn't unless it's a gcc bug.
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/mm.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 24659ed06bae..4f3c1b2f44de 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -605,9 +605,12 @@ static inline struct address_space *page_mapping(struct page *page) struct address_space *mapping = page->mapping; VM_BUG_ON(PageSlab(page)); +#ifdef CONFIG_SWAP if (unlikely(PageSwapCache(page))) mapping = &swapper_space; - else if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON)) + else +#endif + if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON)) mapping = NULL; return mapping; } |