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set_page_refcounted() VM_BUG_ON fix

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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 <[email protected]>
Cc: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Qi Yong 2008-02-04 22:29:27 -08:00 • committed by Linus Torvalds
commit ae1276b934
1 changed files with 1 additions and 1 deletions
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2
mm/internal.h
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@ -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);
}