On Fri, Jul 27, 2007 at 03:07:14PM +1000, David Chinner wrote: > > It duplicates fs/mpage.c in bio building and introduces new generic API > > (iomap, map_blocks_t, etc). > > Using a new API for new functionality is a bad thing?
Depends on wht you do. This patch is just a quickhack to shoe-horn delalloc support into ext4. Introducing a new abstraction is overkill. If we really want an overhaul of the writeback path that's extent-aware, and efficient for delalloc and unwritten extents introducing a proper iomap-like data structure would make sense. That beeing said I personally hate the ubffer_head abuse for bmap data that we have in various places as it's utterly confusing and wasting stack space, but that's a different discussion. - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
