nr_free_pagecache_pages  324 include/linux/swap.h extern unsigned long nr_free_pagecache_pages(void);
nr_free_pagecache_pages  862 mm/memory_hotplug.c 	vm_total_pages = nr_free_pagecache_pages();
nr_free_pagecache_pages 1607 mm/memory_hotplug.c 	vm_total_pages = nr_free_pagecache_pages();
nr_free_pagecache_pages 5826 mm/page_alloc.c 	vm_total_pages = nr_free_pagecache_pages();