[PATCH 1/4] ext4: remove dead GET_BLOCKS_ZERO code

[Eric Whitney <enwlinux@gmail.com>]

There's no call to ext4_map_blocks() in the current ext4 code with a
flags argument that combines EXT4_GET_BLOCKS_CONVERT and
EXT4_GET_BLOCKS_ZERO.  Remove the code that corresponds to this case
from ext4_ext_handle_unwritten_extents().

Signed-off-by: Eric Whitney <enwlinux@gmail.com>
---
 fs/ext4/extents.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index f2b577b315a0..59a90492b9dd 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3826,14 +3826,6 @@ ext4_ext_handle_unwritten_extents(handle_t *handle, struct inode *inode,
 	}
 	/* IO end_io complete, convert the filled extent to written */
 	if (flags & EXT4_GET_BLOCKS_CONVERT) {
-		if (flags & EXT4_GET_BLOCKS_ZERO) {
-			if (allocated > map->m_len)
-				allocated = map->m_len;
-			err = ext4_issue_zeroout(inode, map->m_lblk, newblock,
-						 allocated);
-			if (err < 0)
-				goto out2;
-		}
 		ret = ext4_convert_unwritten_extents_endio(handle, inode, map,
 							   ppath);
 		if (ret >= 0)
-- 
2.20.1