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 52A80606A31A for ; Fri, 23 Oct 2026 22:51:44 +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=AfmAUR5f; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=mNRMQknp DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Cc:To:Subject: From:Message-ID:MIME-Version:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=BTXKKvZZ1A5xGnBvN7q6VkvFyR3TifJU6DyvGMFA+KQ=; b=AfmAUR5fdIViE/cfNWZYnSlTn/ SYj7UsFphmoBxNQDHmL/h/Bezw4J4QpJmehI0qDCUZ1URjZ3IaslLIRAH+7r+ypunYRqfQbh+tXXM +8Cz3g7P/XfbqVFHukfCMxcjbgS1vLfZpOejCEcDbHm3PBuJwHp+GdMmoX4yZwAllUnSMwo1H5abd aJe3uW0FEFYBInA1F0O75/dkVb1zwhyrpktjszqeBq6SqGsDtZaxyyudApfIuLk3oz7OWumCYdi9u OwYxkfO14ZyVhZxHmfyKnYRndmNoIib4xtesFeZcqMrVTppYDroXQkHCtJYbuAzBi5OPGwM+AmXEq CCS+my/A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xKO6y-0000000H4qP-02h9; Fri, 23 Oct 2026 22:51:44 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xKO6x-0000000H4oc-03Pe for kexec@lists.infradead.org; Fri, 23 Oct 2026 22:51:43 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 7271A60A87; Fri, 23 Oct 2026 22:51:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 56D5C1F01825; Fri, 23 Oct 2026 22:51:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792795902; bh=BTXKKvZZ1A5xGnBvN7q6VkvFyR3TifJU6DyvGMFA+KQ=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=mNRMQknpjDSMImsmPQjC9bDo0LgO51+nudI8XKn3OwGLZ2jIPuRqkMyRbACYhVJWX 4A3I46gX59JvUCMJxnTQJq9lfivl5l/ERIAOuI33xPnfnniLhwfM1E3+634r4q/JVZ DkChjF+qt6XV+AZ+D5ld1KNb87r6Ovegwcbb6JpeJDUeN3LwUp+WtQcUiKfEXeDoUY THPHN5SDpzoBqOvKpk6oyh+oEFMMvIl3V7imI0Szkghoo9UM1c1jXKW+141B9KH7Uj cjG0IDsFjU0kDygPiOpQOLCbg9NWm5XqAMZidN/opDWR443clmkCcOeE4avF0w7HjL tjtPCS9EIUVrw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 10/10] selftests/liveupdate: Add a test for preserving tmpfs files To: "David Matlack" , kexec@lists.infradead.org Cc: "Alexander Graf" , "Andrew Morton" , "Baolin Wang" , "Christian Brauner" , "David Hildenbrand" , "Hugh Dickins" , "Jonathan Corbet" , "Liam R. Howlett" , "Lorenzo Stoakes" , "Michal Hocko" , "Mike Rapoport" , "Pasha Tatashin" , "Pratyush Yadav" , "Randy Dunlap" , "Samiullah Khawaja" , "Shuah Khan" , "Suren Baghdasaryan" , "Vlastimil Babka" In-Reply-To: <20261022225035.377445-11-dmatlack@google.com> References: <20261022225035.377445-1-dmatlack@google.com> <20261022225035.377445-11-dmatlack@google.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 23 Oct 2026 22:51:41 +0000 X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Sender: "kexec" X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 X-Archived-By: > Add luo_tmpfs, a kexec test for preserving tmpfs files and memfds, and > for retrieving tmpfs files onto a tmpfs mount with struct > liveupdate_shmem_retrieve_arg. >=20 > Stage 1 preserves the source files of each test case. Stage 2 runs > each test case in its own directory, with its own tmpfs mounts, so that > block usage can be checked exactly with statfs() and st_blocks. The test > cases cover: >=20 > - The restored file: contents, size, position, seals and holes, for > linked and unlinked source files. >=20 > - Creating the file: it is created like with open(O_TMPFILE), with the > requested mode minus the umask, owned by the caller, and not linked > until userspace links it, unless it asked for O_EXCL. Also O_RDONLY > [ ... ] > tmpfs quotas are not tested, since the test runs as root, which is not > subject to quota limits. >=20 > Assisted-by: LLM > Signed-off-by: David Matlack Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261022225035.3774= 45-1-dmatlack@google.com?part=3D10