On Tuesday 05 July 2011, Marek Szyprowski wrote:
From: KAMEZAWA Hiroyuki kamezawa.hiroyu@jp.fujitsu.com
This commit introduces alloc_contig_freed_pages() function which allocates (ie. removes from buddy system) free pages in range. Caller has to guarantee that all pages in range are in buddy system.
Along with this function, a free_contig_pages() function is provided which frees all (or a subset of) pages allocated with alloc_contig_free_pages().
Michal Nazarewicz has modified the function to make it easier to allocate not MAX_ORDER_NR_PAGES aligned pages by making it return pfn of one-past-the-last allocated page.
Signed-off-by: KAMEZAWA Hiroyuki kamezawa.hiroyu@jp.fujitsu.com Signed-off-by: Michal Nazarewicz m.nazarewicz@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com CC: Michal Nazarewicz mina86@mina86.com
Acked-by: Arnd Bergmann arnd@arndb.de