From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1793E60A2604 for ; Tue, 20 Oct 2026 10:20:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=mLI1BG1g; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ARO/ajo2 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=nLyz9JhGDWxy9NbjsVWTRULOrIKXHGlt/Z6IB5TxlIQ=; b=mLI1BG1gR4idUXI9nsNKg6uEV4 WDJCd/61/g8ZyBwWLnwLI/vd5Ae/hBGSFhWfy2sQiTkGJiY3+6b3WblVzXGsQEZwx8mBBJbPLFbqb zpmXvrB5MA8i/0FHoQQCwiCWiT8mtFZeGSSeHMyKLmRl0ovnRNrd65IZRLNx30OHheOZU0c4Ldcpv yXZgysdeKhTSF2XDMiS1Hot99I7RbLW/V8if9XPIrNsnTirrgr/YzRQEQc00MjIzkslwO2Py5OKDg cK9IV3LO7PINjWqUpibkiUhbXGEbkwdfzs2B+Hpsnc8SeVV4qJV+VhIrwmxNtWr2HBKkEURII7Ry8 LlBX4dBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJ6xP-00000009PtS-0KOa; Tue, 20 Oct 2026 10:20:35 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJ6xN-00000009PtK-1wiV for kexec@lists.infradead.org; Tue, 20 Oct 2026 10:20:33 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id AF639605ED; Tue, 20 Oct 2026 10:20:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1BEC51F000C4; Tue, 20 Oct 2026 10:20:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792491632; bh=nLyz9JhGDWxy9NbjsVWTRULOrIKXHGlt/Z6IB5TxlIQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=ARO/ajo2zgnbhFh5hCsGaz2xlsiTq5MKQA6QPpY92hDVzgorsIZh6oB+ih4SUR7Sz tIwJgdtYXc3kdAtc8zIZB1sQAhih9AFMDP5WLOrHIyxgNB/ReCHVUJyJqFnTHEjBqd 84SBrjEEA3ccXcwJHCAHI0pCb64e09QbkB+WwlUSIAJSRYofca91MsD2O5S/01RU8s Kb2wYkAbksfdst2H+OBT2H1jGVQ5oyRchc/cWEuy3ecycbLOpz6QFvwMcn0KG8joWJ 0iBmrCBKxSd91sy0cvV/QL47OD2pi12m2LMfPXiVyiX3Kx6I6KP2r2/i6sSNyHy01m jKAi1djIrLRrA== From: Pratyush Yadav To: Pasha Tatashin Cc: tarunsahu@google.com, linux-kselftest@vger.kernel.org, rppt@kernel.org, shuah@kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, vipinsh@google.com, linux-kernel@vger.kernel.org, dmatlack@google.com, kexec@lists.infradead.org, pratyush@kernel.org, graf@amazon.com Subject: Re: [PATCH v1 3/7] liveupdate: Pass user argument to file preserve and retrieve In-Reply-To: (Pasha Tatashin's message of "Mon, 19 Oct 2026 15:31:50 -0400") References: <20261015093816.2438942-1-pasha.tatashin@soleen.com> <20261015093816.2438942-4-pasha.tatashin@soleen.com> <9huzwlrdh4q4.fsf@tarunix.c.googlers.com> Date: Tue, 20 Oct 2026 12:20:28 +0200 Message-ID: <2vxzfqy0hdw3.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Mon, Oct 19 2026, Pasha Tatashin wrote: > On Mon, Oct 19, 2026 at 3:26=E2=80=AFPM wrote: >> >> >> As Per Today's Hypervisor liveupdate meeting, This patch will be picked >> by @dmatlack@google.com for latest tmpfs preservation series. >> >> I have a suggestion to make here. >> >> Let's send this patch as a saperate patch so that I can also use this in >> my guest_memfd preservation work. This will help landing this feature >> sooner and unblock other subsystem who needs it. >> >> Let me know what you think? > > Hi Tarun, > > You can include this patch the next time you send your guest_memfd > patches. Whichever series lands first will pull in this change. > > We are trying not to merge new features without an actual user, > especially ones as important as those changing the uapi. I think tmpfs > preservation may actually make it easier to land, as it only changes > the code that we maintain. +1, let's use tmpfs preservation to land this change. It is a simple and relatively small change compared to guest_memfd preservation. [...] --=20 Regards, Pratyush Yadav