pmalloc: support for 4K pages

Change-Id: Iecceffe06a92660976ebb58cd3cbec4be8931db0
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vppinfra/mem.h b/src/vppinfra/mem.h
index 813ff6c..a2c5474 100644
--- a/src/vppinfra/mem.h
+++ b/src/vppinfra/mem.h
@@ -386,12 +386,13 @@
   uword requested_va;		/**< Request fixed position mapping */
 } clib_mem_vm_alloc_t;
 
+clib_error_t *clib_mem_create_fd (char *name, int *fdp);
 clib_error_t *clib_mem_create_hugetlb_fd (char *name, int *fdp);
 clib_error_t *clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a);
 void clib_mem_vm_ext_free (clib_mem_vm_alloc_t * a);
-u64 clib_mem_vm_get_page_size (int fd);
+u64 clib_mem_get_fd_page_size (int fd);
 uword clib_mem_get_default_hugepage_size (void);
-int clib_mem_vm_get_log2_page_size (int fd);
+int clib_mem_get_fd_log2_page_size (int fd);
 u64 *clib_mem_vm_get_paddr (void *mem, int log2_page_size, int n_pages);
 
 typedef struct