On Fri, 2008-10-10 at 23:32 +0530, Aneesh Kumar K.V wrote: > The range_cyclic writeback mode use the address_space > writeback_index as the start index for writeback. With > delayed allocation we were updating writeback_index > wrongly resulting in highly fragmented file. Number of > extents reduced from 4000 to 27 for a 3GB file with > the below patch. > > The patch also removes the range_cont writeback mode > added for ext4 delayed allocation. Instead we add > two new flags in writeback_control which control > the behaviour of write_cache_pages. > I'm sorry, but I won't be able to test this until next wednesday. In general, I like the structure of it, and I can see this being useful for other filesystems too. -chris -- 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
