Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > On Wed, Nov 22, 2023 at 01:29:46PM +0100, Jan Kara wrote: >> writeback bit set. XFS plays the revalidation sequence counter games >> because of this so we'd have to do something similar for ext2. Not that I'd >> care as much about ext2 writeback performance but it should not be that >> hard and we'll definitely need some similar solution for ext4 anyway. Can >> you give that a try (as a followup "performance improvement" patch). > > Darrick has mentioned that he is looking into lifting more of the > validation sequence counter validation into iomap. > > In the meantime I have a series here that at least maps multiple blocks > inside a folio in a single go, which might be worth trying with ext2 as > well: > > http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/iomap-map-multiple-blocks Sure, thanks for providing details. I will check this. -ritesh
