diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 12ccacd..f9e2cd8 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -23,6 +23,8 @@
 
 #include <trace/events/ext4.h>
 
+static unsigned ext4_num_base_meta_clusters(struct super_block *sb,
+					    ext4_group_t block_group);
 /*
  * balloc.c contains the blocks allocation and deallocation routines
  */
@@ -668,7 +670,7 @@
  * This function returns the number of file system metadata clusters at
  * the beginning of a block group, including the reserved gdt blocks.
  */
-unsigned ext4_num_base_meta_clusters(struct super_block *sb,
+static unsigned ext4_num_base_meta_clusters(struct super_block *sb,
 				     ext4_group_t block_group)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 13d1514..e7dc9ad 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1803,8 +1803,6 @@
 extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
 					      ext4_group_t block_group,
 					      struct ext4_group_desc *gdp);
-extern unsigned ext4_num_base_meta_clusters(struct super_block *sb,
-					    ext4_group_t block_group);
 extern unsigned ext4_num_overhead_clusters(struct super_block *sb,
 					   ext4_group_t block_group,
 					   struct ext4_group_desc *gdp);
@@ -1896,9 +1894,6 @@
 extern int ext4_discard_partial_page_buffers(handle_t *handle,
 		struct address_space *mapping, loff_t from,
 		loff_t length, int flags);
-extern int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
-		struct inode *inode, struct page *page, loff_t from,
-		loff_t length, int flags);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
 extern qsize_t *ext4_get_reserved_space(struct inode *inode);
 extern void ext4_da_update_reserve_space(struct inode *inode,
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e6cc24d..a526684 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -72,6 +72,9 @@
 static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate);
 static int __ext4_journalled_writepage(struct page *page, unsigned int len);
 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
+static int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
+		struct inode *inode, struct page *page, loff_t from,
+		loff_t length, int flags);
 
 /*
  * Test whether an inode is a fast symlink.
@@ -3161,7 +3164,7 @@
  *
  * Returns zero on sucess or negative on failure.
  */
-int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
+static int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
 		struct inode *inode, struct page *page, loff_t from,
 		loff_t length, int flags)
 {