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Received: from 2001-1c00-8d85-4b00-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:4b00:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1wSv6S-000000060Uo-2N4R; Fri, 29 May 2026 11:10:12 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 06D5E30036F; Fri, 29 May 2026 13:10:12 +0200 (CEST) Date: Fri, 29 May 2026 13:10:11 +0200 From: Peter Zijlstra To: Roman Gushchin Cc: Zi Yan , Yosry Ahmed , "David Hildenbrand (Arm)" , Andrew Morton , Pasha Tatashin , Lance Yang , dave.hansen@intel.com, dave.hansen@linux.intel.com, ypodemsk@redhat.com, hughd@google.com, will@kernel.org, aneesh.kumar@kernel.org, npiggin@gmail.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, arnd@arndb.de, ljs@kernel.org, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, shy828301@gmail.com, riel@surriel.com, jannh@google.com, jgross@suse.com, seanjc@google.com, pbonzini@redhat.com, boris.ostrovsky@oracle.com, virtualization@lists.linux.dev, kvm@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, ioworker0@gmail.com Subject: Re: [PATCH 7.2 v10 0/2] skip redundant sync IPIs when TLB flush sent them Message-ID: <20260529111011.GH3493090@noisy.programming.kicks-ass.net> References: <80ab39c2-efb9-4a23-bd56-46d9bb4e41bb@kernel.org> <20260424073145.b990fe9b925da304508aad71@linux-foundation.org> <644e65dc-3d39-4137-b51f-51d953b67d50@kernel.org> <20260424190141.GA3783056@noisy.programming.kicks-ass.net> <20260424192250.GC3783056@noisy.programming.kicks-ass.net> <20260424193529.GA3853824@noisy.programming.kicks-ass.net> <7ia45x5gktx9.fsf@castle.c.googlers.com> <20260424201159.GD3783056@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260424201159.GD3783056@noisy.programming.kicks-ass.net> X-Rspam-User: X-Rspamd-Queue-Id: C6B161A0009 X-Rspamd-Server: rspam03 X-Stat-Signature: kyk1rini9sa3b6cu1ssi4wextxiafhbr X-HE-Tag: 1780053022-900105 X-HE-Meta: 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 R0I09tI8 1ivJ8/jGgg3oovFXCwTeRgftkvrZhruW4fXEEw5+L4Gf/oMY9zWRXyew6iu3m9Wt+M6jBe5YwMVp1AyJzP/3BLqanETDAPrb2NmYQBM2fMRKH4tVp8XokMdURHa1B4vF6FhXYwtkc7Mwq83qJkaV+J3V5PAaR9cWTpsN0CdFUgBNa5lskcuwI1pn4ZpZwguYAPcRPD4GhMwzyfV774l90jbJIGCbfT8Anvp5XC0Qhp39IKypbi/N0cPSMpTKhjcpUMOIDLqCLX4n+Rt/J4c6rQK2wXwYASt4x3zggoMtdr/o8w2zuj+6iWjVxtDDAZsw+Cf0B Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Apr 24, 2026 at 10:11:59PM +0200, Peter Zijlstra wrote: > On Fri, Apr 24, 2026 at 08:03:14PM +0000, Roman Gushchin wrote: > > Peter Zijlstra writes: > > > > > On Fri, Apr 24, 2026 at 09:22:51PM +0200, Peter Zijlstra wrote: > > > > > >> mdir = mailbox.Maildir('~/Maildir/'); > > >> > > >> for i, r in enumerate(reviews): > > >> inline = r.get('inline_review', '') or '' > > >> if not inline: > > >> continue > > >> > > >> author_name = r.get('author_name', 'Sashiko Reviewer') > > >> author_email = r.get('author_email', 'noreply@sashiko.dev') > > >> > > >> msgid = msgids[r['patch_id']] > > >> subject = subjects[r['patch_id']] > > >> > > >> # Create the Email object > > >> msg = EmailMessage() > > >> msg['Subject'] = f"Re: {subject}" > > >> msg['From'] = f"{author_name} <{author_email}>" > > >> msg['To'] = "peterz@infradead.org" > > >> msg['Date'] = formatdate(localtime=True) > > >> > > >> # The critical threading headers > > >> msg['Message-ID'] = f"" > > >> msg['References'] = f"<{msgid}>" > > >> msg['In-Reply-To'] = f"<{msgid}>" > > >> > > >> msg.set_content(inline) > > >> > > >> mdir.add(msg) > > >> > > >> mdir.flush() > > > > > > So Ideally I would have 'Reply-to' header set to the original sender and > > > added 'Cc' like the original email. However, AFAICT the JSON does not > > > contain this information, and while I could use the mdir object to find > > > the original message in my Inbox, this is incredibly slow. > > > > > > I have a TODO to use python-notmuch to do this, but haven't gotten > > > around to doing this yet. > > > > > > With that 'fixed' I could actually reply to these messages and it would > > > all 'just' work. For now I copy/paste when needed. > > > > I can add an api to return a json with the review and all > > meta-information by the original msgid, will it be useful? > > Oh yes, that would be more convenient. Thanks! Roman, did you find time to do this? If not, I'll patiently wait :-)