On Tue, May 12, 2026 at 11:40:08AM -0400, Gregory Price wrote: > On Mon, May 11, 2026 at 05:03:19AM -0400, Michael S. Tsirkin wrote: > > When a reported free page is split via expand() to satisfy a > > smaller allocation, the sub-pages placed back on the free lists > > lose the PageReported flag. This means they will be unnecessarily > > re-reported to the hypervisor in the next reporting cycle, wasting > > work. > > > > Is this issue generated by the changes in the overall patch set, or an > issue present regardless of the proposed zeroing avoidance feature? > > If the former, then maybe just submit as a standalone patch, seems like > a useful improvement regardless.
The former but then the only issue is more reporting, and I couldn't find a benchmark that would quantify the performance difference. So the value of pushing a fix by itself is pretty low. > If fundamentally tied to the zeroing-avoidance feature, then nudging > this to the front or end of the series (depending on conflicts) would > help focus the review of the core new feature. > > ~Gregory I can nudge it forward sure. -- MST
