On 07/13/23 10:34, Andrew Morton wrote: > > The patch titled > Subject: hugetlb: optimize update_and_free_pages_bulk to avoid lock cycles > has been added to the -mm mm-hotfixes-unstable branch. Its filename is > hugetlb-optimize-update_and_free_pages_bulk-to-avoid-lock-cycles.patch Muchun pointed out that this patch does not address the issue raised by Jiaqi Yan. In fact, I accidentally sent the wrong (previous) version of the patch. I mentioned that while getting ready to send the correct version, I noticed another race window. I am currently finishing some testing on that. Bottom line is that this patch should not move forward. A new version will be sent and I will attempt to answer your questions about introducing a performance regression. Sorry for any confusion, -- Mike Kravetz