>>>>> Christoph Hellwig (CH) writes: CH> Note that recording delayed alloc state at a page granularity in addition CH> to just the buffer heads has a lot of advantages aswell and would help CH> xfs, too. But I think it makes a lot more sense to record it as a radix CH> tree tag to speed up the gang lookups for delalloc conversion. please, exaplein about radix tree tag. in ext4-delalloc I use this bit the only way - to avoid multiple reservation space for same page. I guess you need to find non-allocated pages. probably to flush them and update number of reserved blocks in case of -ENOSPC? thanks, Alex - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
