Thanks for information Junichi, > Do you have a problem with the current behavior other than the document? No. I and my colleagues just wondered why. > AFAIR, dm increments ios/sectors at submission because md did. > And other bio-based drivers such as drbd and nvme seem to have followed > the precedence. > > While md has a reason to do so (some md personalities just remaps bios > and doesn't track completion), dm should be able to collect stat > in dec_pending as it always clones. Very interesting historical background. Maybe bache, too. > So, I think it's ok to move ios/sectors counting to end_io_acct(). > It might make tools like iostat happier. > You might want to fix other bio-based drivers as well. I want to hear comments from DM maintainers on this issue. - Akira -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
