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AJvYcCUaqBhPhSQHAaa6cv0N9NbTumbdejc/IG4bqiUnUxjul6FVGIdXDJG0I8GZHkqxgILQMwzwYitrSw==@kvack.org X-Gm-Message-State: AOJu0Yxcxc4a1+PATbChnXfokvI8hsHRJxdThKDXuMcHSUR8Z1U0ls4C 7CUcrenfKPnzAL9Ds0bI2ccs2V325n1IKGU4vt+WEY/kIw4snhlDGZcqf1UNGwaz+rOtEH+esqT MG46fFw== X-Google-Smtp-Source: AGHT+IEVcWsyGM1w0GH1nNrshkk20Pnc8ghwxFB8MAUOFgcR14npidYwrEDITe3+YHWa4Mb/5XspEYhl1Ac= X-Received: from pga11.prod.google.com ([2002:a05:6a02:4f8b:b0:b4c:213a:e7aa]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:3282:b0:262:1611:6528 with SMTP id adf61e73a8af0-2e7cdda0840mr4939471637.29.1758812806367; Thu, 25 Sep 2025 08:06:46 -0700 (PDT) Date: Thu, 25 Sep 2025 08:06:44 -0700 In-Reply-To: <3a82a197-495f-40c3-ae1b-500453e3d1ec@redhat.com> Mime-Version: 1.0 References: <20250827175247.83322-2-shivankg@amd.com> <20250827175247.83322-7-shivankg@amd.com> <3a82a197-495f-40c3-ae1b-500453e3d1ec@redhat.com> Message-ID: Subject: Re: [PATCH kvm-next V11 4/7] KVM: guest_memfd: Use guest mem inodes instead of anonymous inodes From: Sean Christopherson To: David Hildenbrand Cc: Shivank Garg , Ackerley Tng , willy@infradead.org, akpm@linux-foundation.org, pbonzini@redhat.com, shuah@kernel.org, vbabka@suse.cz, brauner@kernel.org, viro@zeniv.linux.org.uk, dsterba@suse.com, xiang@kernel.org, chao@kernel.org, jaegeuk@kernel.org, clm@fb.com, josef@toxicpanda.com, kent.overstreet@linux.dev, zbestahu@gmail.com, jefflexu@linux.alibaba.com, dhavale@google.com, lihongbo22@huawei.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, surenb@google.com, mhocko@suse.com, ziy@nvidia.com, matthew.brost@intel.com, joshua.hahnjy@gmail.com, rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net, ying.huang@linux.alibaba.com, apopple@nvidia.com, tabba@google.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, pvorel@suse.cz, bfoster@redhat.com, vannapurve@google.com, chao.gao@intel.com, bharata@amd.com, nikunj@amd.com, michael.day@amd.com, shdhiman@amd.com, yan.y.zhao@intel.com, Neeraj.Upadhyay@amd.com, thomas.lendacky@amd.com, michael.roth@amd.com, aik@amd.com, jgg@nvidia.com, kalyazin@amazon.com, peterx@redhat.com, jack@suse.cz, hch@infradead.org, cgzones@googlemail.com, ira.weiny@intel.com, rientjes@google.com, roypat@amazon.co.uk, chao.p.peng@intel.com, amit@infradead.org, ddutile@redhat.com, dan.j.williams@intel.com, ashish.kalra@amd.com, gshan@redhat.com, jgowans@amazon.com, pankaj.gupta@amd.com, papaluri@amd.com, yuzhao@google.com, suzuki.poulose@arm.com, quic_eberman@quicinc.com, linux-bcachefs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-coco@lists.linux.dev Content-Type: text/plain; charset="us-ascii" X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 9356312001A X-Stat-Signature: skbyinisz1iic96fs8ee7ngukuf1grr1 X-HE-Tag: 1758812808-488927 X-HE-Meta: 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 HcNNyrLY 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 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: List-Subscribe: List-Unsubscribe: On Thu, Sep 25, 2025, David Hildenbrand wrote: > On 25.09.25 15:41, Sean Christopherson wrote: > > Regarding timing, how much do people care about getting this into 6.18 in > > particular? > > I think it will be beneficial if we start getting stuff upstream. But > waiting a bit longer probably doesn't hurt. > > > AFAICT, this hasn't gotten any coverage in -next, which makes me a > > little nervous. > > Right. > > If we agree, then Shivank can just respin a new version after the merge > window. Actually, if Shivank is ok with it, I'd be happy to post the next version(s). I'll be focusing on the in-place conversion support for the next 1-2 weeks, and have some (half-baked) refactoring changes to better leverage the inode support from this series. I can also plop the first three patches (the non-KVM changes) in a topic branch straightaway, but not feed it into -next until the merge window closes. The 0-day bots scrapes kvm-x86, so that'd get us some early build-bot exposure, and we can stop bugging the non-KVM folks. Then when the dust settles on the KVM changes, I can throw them into the same topic branch.