unsigned int gfp_mask; 
gfp_t gfp_mask; 
grab_cache_page_nowait(struct address_space *mapping, unsigned long index){	struct page *page = find_get_page(mapping, index);	unsigned int gfp_mask;	if (page) {		if (!TestSetPageLocked(page))			return page;		page_cache_release(page);		return NULL;	}	gfp_mask = mapping_gfp_mask(mapping) & ~__GFP_FS;	page = alloc_pages(gfp_mask, 0);	if (page && add_to_page_cache_lru(page, mapping, index, gfp_mask)) {		page_cache_release(page);		page = NULL;	}	return page;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/6daa0e28627abf362138244a620a821a9027d816/filemap.c/clean/mm/filemap.c