On Tue, Aug 12, 2025 at 05:15:34PM +0800, alexjlzheng@xxxxxxxxx wrote: > From: Jinliang Zheng <alexjlzheng@xxxxxxxxxxx> > > With iomap_folio_state, we can identify uptodate states at the block > level, and a read_folio reading can correctly handle partially > uptodate folios. > > Therefore, when a partial write occurs, accept the block-aligned > partial write instead of rejecting the entire write. > > For example, suppose a folio is 2MB, blocksize is 4kB, and the copied > bytes are 2MB-3kB. I'd still love to see some explanation of why you are doing this. Do you have a workload that actually hits this regularly, and where it makes a difference. Can you provide numbers to quantify them?
