Commits
Gavin Shan committed 0bb2c7637ef
mm/page_alloc.c: remove duplicate check While allocating pages using buddy allocator, the compound page is probably split up to free pages. Under these circumstances, the compound page should be destroyed by destroy_compound_page(). However, there is a duplicate check to judge if the page is compound. Remove the duplicate check since the compound_order() returns 0 when the page doesn't have PG_head set in destroy_compound_page(). That is to say, destroy_compound_page() needn't check PageHead(). Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>