1 files changed, 17 insertions, 0 deletions

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index d2a8cb74676b..fe3337a85ede 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -854,6 +854,23 @@ int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
         return err;
 }
 
+int ext4_es_zeroout(struct inode *inode, struct ext4_extent *ex)
+{
+        ext4_lblk_t  ee_block;
+        ext4_fsblk_t ee_pblock;
+        unsigned int ee_len;
+
+        ee_block  = le32_to_cpu(ex->ee_block);
+        ee_len    = ext4_ext_get_actual_len(ex);
+        ee_pblock = ext4_ext_pblock(ex);
+
+        if (ee_len == 0)
+                return 0;
+
+        return ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
+                                     EXTENT_STATUS_WRITTEN);
+}
+
 static int ext4_es_shrink(struct shrinker *shrink, struct shrink_control *sc)
 {
         struct ext4_sb_info *sbi = container_of(shrink,