On Mon, Aug 25, 2025 at 07:39:21PM +0800, Jinliang Zheng wrote: > Actually, I discovered this while reading (and studying) the code for large > folios. > > Given that short-writes are inherently unusual, I don't think this patchset > will significantly improve performance in hot paths. It might help in scenarios > with frequent memory hardware errors, but unfortunately, I haven't built a > test scenario like that. > > I'm posting this patchset just because I think we can do better in exception > handling: if we can reduce unnecessary copying, why not? I'm always interested in the motivation, especially for something adding more code or doing large changes. If it actually improves performance it's much easier to argue for. If it doesn't that doesn't mean the patch is bad, but it needs to have other upsides. I'll take another close look, but please also add your motivation to the cover letter and commit log for the next round.
