nr_free_buffer_pages 3344 fs/buffer.c nrpages = (nr_free_buffer_pages() * 10) / 100; nr_free_buffer_pages 3186 fs/nfsd/nfs4state.c max_delegations = nr_free_buffer_pages() >> (20 - 2 - PAGE_SHIFT); nr_free_buffer_pages 166 include/linux/swap.h extern unsigned int nr_free_buffer_pages(void); nr_free_buffer_pages 4280 mm/page_alloc.c lowmem_kbytes = nr_free_buffer_pages() * (PAGE_SIZE >> 10);