> On Thu, Jul 20, 2023 at 06:29:57PM +0900, Jinyoung Choi wrote: > > Changing the bitmap page is also possible on the page where the DMA is > > being performed or scheduled in the MD. > > Are you guys actually using the whacky bitmap feature? If so, this > really is the least of our problems and you need to invest some real > work into it to get it off ->bmap and into using ->read_iter and > ->write_iter. Right now Song has a series from me queued up to > deprecated it. > > I also don't think a simple wait for existing writers prevents you > from other modifications, but maybe I'm issing something. Hi, Christoph. I think the way to write bitmap page like you should be changed. This patch is a simple workaround in the current system. I will check the patches you provided for bitmap processing. Thank you for your review. Best Regards, Jinyoung.