On Wed, Jun 25, 2025 at 07:51:56PM +0800, Baokun Li wrote: > Now that mainline ext4 supports buffer head large folios, we'll first > focus on LBS support based on buffer heads. The main work involves adapting > ext4's internal logic (e.g., block allocation, read/write operations, > defragmentation) and clean up the process related to buffer head. That makes sense; ext4 uses buffer heads for metadata blocks, and so even if we were using the buffered iomap code, that only is relevant to the data path, so the changes so that jbd2 and ext4 can suport large blocks while updating inode table blocks, allocation bitmaps, etc. would be needed anyway. Cheers, - Ted
