ext4: remove ctime/mtime update from ext4_alloc_file_blocks()

The ctime and mtime update is already handled by file_modified() in
ext4_fallocate(), the caller of ext4_alloc_file_blocks(). So remove the
redundant calls to inode_set_ctime_current() and inode_set_mtime_to_ts()
in ext4_alloc_file_blocks().

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260327102939.1095257-12-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Author: zhangyi089

fs/ext4/extents.c

@@ -4652,13 +4652,10 @@ static int ext4_alloc_file_blocks(struct file *file, loff_t offset, loff_t len,
 		 */
 		retries = 0;
 		epos = EXT4_LBLK_TO_B(inode, map.m_lblk + ret);
-		inode_set_ctime_current(inode);
 		if (new_size) {
 			if (epos > new_size)
 				epos = new_size;
-			if (ext4_update_inode_size(inode, epos) & 0x1)
-				inode_set_mtime_to_ts(inode,
-						      inode_get_ctime(inode));
+			ext4_update_inode_size(inode, epos);
 			if (epos > old_size)
 				pagecache_isize_extended(inode, old_size, epos);
 		}