ext4: don't explicit update times in ext4_fallocate()

[ Upstream commit 73ae756 ]

After commit 'ad5cd4f4ee4d ("ext4: fix fallocate to use file_modified to
update permissions consistently"), we can update mtime and ctime
appropriately through file_modified() when doing zero range, collapse
rage, insert range and punch hole, hence there is no need to explicit
update times in those paths, just drop them.

Signed-off-by: Zhang Yi <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Ojaswin Mujoo <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Stable-dep-of: 29ec9be ("ext4: fix incorrect punch max_end")
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: zhangyi089

fs/ext4/extents.c

@@ -4675,8 +4675,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 			goto out_mutex;
 		}
 
-		inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
-
 		ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
 					     flags);
 		filemap_invalidate_unlock(mapping);
@@ -4700,7 +4698,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 		goto out_mutex;
 	}
 
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	if (new_size)
 		ext4_update_inode_size(inode, new_size);
 	ret = ext4_mark_inode_dirty(handle, inode);
@@ -5431,7 +5428,6 @@ static int ext4_collapse_range(struct file *file, loff_t offset, loff_t len)
 	up_write(&EXT4_I(inode)->i_data_sem);
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret = ext4_mark_inode_dirty(handle, inode);
 	ext4_update_inode_fsync_trans(handle, inode, 1);
 
@@ -5541,7 +5537,6 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
 	/* Expand file to avoid data loss if there is error while shifting */
 	inode->i_size += len;
 	EXT4_I(inode)->i_disksize += len;
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret = ext4_mark_inode_dirty(handle, inode);
 	if (ret)
 		goto out_stop;

fs/ext4/inode.c

@@ -4113,7 +4113,6 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
 
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret2 = ext4_mark_inode_dirty(handle, inode);
 	if (unlikely(ret2))
 		ret = ret2;