On Mon, Mar 29, 2021 at 09:05:33AM -0400, Jeff King wrote: > On Thu, Mar 11, 2021 at 12:04:31PM -0500, Taylor Blau wrote: > > > Here is another reroll of my series to implement a reverse index in > > preparation for multi-pack reachability bitmaps. The previous version > > was based on 'ds/chunked-file-api', but that topic has since been merged > > to 'master'. This series is now built directly on top of 'master'. > > I gave the whole thing another careful read. Most of what I found were > small nits, but enough that I think one more re-roll is worth it. Thanks. I agree that another re-roll is worth it. I have one prepared locally, and I just had one outstanding question in: https://lore.kernel.org/git/YGI6ySogGoYZi66A@nand.local/ that I'll wait on your reply to before sending a reroll. > The biggest question is what we want to happen next. As you note, the > concept of a midx .rev file is useless until we have the matching > .bitmap file. So we _could_ let this sit in next while the dependent > bitmap topic is reviewed, and then merge them down together. But I'm > inclined to treat this as an independent topic that can get merged to > master on its own, since the early cleanups are valuable on their own, > and the .rev parts at the end, even if dead, won't hurt anything. That matches what I was hoping for. I think the clean-ups are worth it on their own, but I also think it's a good idea to take the whole series, since it means there's one less long-running branch in flight while we review the MIDX bitmaps topic. (FWIW, I can also see an argument in the other direction along the lines of "we may discover something later on that requires us to change the way multi-pack .rev files work". I think that such an outcome is fairly unlikely, but worth considering anyway). Thanks, Taylor