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dkim=pass header.d=suse.com header.s=susede1 header.b=bpbzjrYv; spf=pass (imf13.hostedemail.com: domain of mhocko@suse.com designates 195.135.220.28 as permitted sender) smtp.mailfrom=mhocko@suse.com; dmarc=pass (policy=quarantine) header.from=suse.com X-Rspamd-Server: rspam07 X-HE-Tag: 1665581015-994481 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed 12-10-22 15:07:48, Michal Hocko wrote: > On Wed 12-10-22 07:34:06, Vinicius Petrucci wrote: [...] > > Having a feature like "pidfd/process_mbind" would really simplify our > > user-level agent implementation moving forward, as right now we are > > adding a LD_PRELOAD wrapper (for signal handler) to listen and execute > > "mbind" requests from another process. If there's any other > > alternative solution to this already (via ptrace?), please let me > > know. > > userfaultfd sounds like the closest match if #PF handling under control > of an external agent is viable. And just to clarify. I haven't ever played with using userfaultfd for numa balancing so I might be completely wrong here. -- Michal Hocko SUSE Labs