ext4: rename ext4_ext_find_extent() to ext4_find_extent()

Make the function name less redundant.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 7bf970d..5d78063 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -27,7 +27,7 @@
  * @lblock:	logical block number to find an extent path
  * @path:	pointer to an extent path pointer (for output)
  *
- * ext4_ext_find_extent wrapper. Return 0 on success, or a negative error value
+ * ext4_find_extent wrapper. Return 0 on success, or a negative error value
  * on failure.
  */
 static inline int
@@ -36,7 +36,7 @@
 {
 	struct ext4_ext_path *path;
 
-	path = ext4_ext_find_extent(inode, lblock, ppath, EXT4_EX_NOCACHE);
+	path = ext4_find_extent(inode, lblock, ppath, EXT4_EX_NOCACHE);
 	if (IS_ERR(path))
 		return PTR_ERR(path);
 	if (path[ext_depth(inode)].p_ext == NULL) {