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authorQi Yong <qiyong@fc-cn.com>2008-02-04 22:29:27 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:19 -0800
commitae1276b9349a2fd9c3afb4651e25a77ac03299d9 (patch)
treee3bef5a303f308e398caf53ac098b1d4a2a8061f /mm/internal.h
parent920c7a5d0c94b8ce740f1d76fa06422f2a95a757 (diff)
downloadvexpress-lsk-ae1276b9349a2fd9c3afb4651e25a77ac03299d9.tar.gz
set_page_refcounted() VM_BUG_ON fix
The current PageTail semantic is that a PageTail page is first a PageCompound page. So remove the redundant PageCompound test in set_page_refcounted(). Signed-off-by: Qi Yong <qiyong@fc-cn.com> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
-rw-r--r--mm/internal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 1e34d2462a4..5a9a6200e03 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -24,7 +24,7 @@ static inline void set_page_count(struct page *page, int v)
*/
static inline void set_page_refcounted(struct page *page)
{
- VM_BUG_ON(PageCompound(page) && PageTail(page));
+ VM_BUG_ON(PageTail(page));
VM_BUG_ON(atomic_read(&page->_count));
set_page_count(page, 1);
}