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 DE8FD606A33E for ; Tue, 3 Nov 2026 15:01:21 +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=S3e4tqDf; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=gpYfA8iv 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=pruwCsX2Nj8P2A3ZkDZfqhhveDP+NyBs8rSomhgGUU8=; b=S3e4tqDf0Vd0llraF+LfDlaPit lxqhPdWiJv3l8/NI8ahKgRi+GxhV1Pt3RU9LQ9ogeS2sh2kMKTWEz5km3vkrUzu6qw+kwr1SRDDkt z/dIP4UauMJ1XDU6q45cNUeWqsbXRd9vC/htLu5jE9uIXvkKDOhO6lQj/zD+qfAXBHr5UXHMImAlF cPzBMPwJXbsopDFftrpgDh/vLBEkN3QSaUJTtUMHcvlbwnMi+HET1qgQ82TYmkCnP45uXqVS5+fX/ ppg19MDLcTD2P4LcGKL7eyVM6Vd5UDwpmqY5tVZptD2eI5izaiEJKlLxrIZNQQ/lxID2Fjdk8QRz6 BDcFgbYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xOG0n-00000002pjD-2X8F; Tue, 03 Nov 2026 15:01:21 +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 1xOG0m-00000002pi7-2hwZ for kexec@lists.infradead.org; Tue, 03 Nov 2026 15:01:20 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 19CFD609FB; Tue, 3 Nov 2026 15:01:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCD2A1F000C1; Tue, 3 Nov 2026 15:01:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793718079; bh=pruwCsX2Nj8P2A3ZkDZfqhhveDP+NyBs8rSomhgGUU8=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=gpYfA8ivu0EAnWhduZFmphtcIFZSGsJJkhZlvzy5YyKRExQz2lKkkw8OFY07G7zhl QXK+/wAx2e3lUZBCumPvDuR1/CWFBc91Z6WG2Hpe/KA3keAWuqHeKEckj6rl+uRvUm 0DD2mqqO1kQPWJtMH9mgPG2OwfUnYuJ9j6ikz9y+dNaFMbCTYjhiXpIP4eWCi5yjYi Hz31AyUaH/D1IdodghQ/+cQxG+cvoF7GjEMSxwIAcogBIdrkyj4oC8VJmOIa5uaDa8 BqiLNz4agF5A0jKeip5ntCNO+LfhUsYbiRyktw0MpTevQA8rbeHsgsbIZcoz3mCr6C TOSw9p+fDzh/g== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC 08/16] selftests/proc: check that a faulting reader doesn't hold up removal To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-sound@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-hwmon@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, sparclinux@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-input@vger.kernel.org, linux-raid@vger.kernel.org, linux-ext4@vger.kernel.org, linux-modules@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, dmitry.torokhov@gmail.com, "Petr Pavlu" , "Anna Schumaker" , yukuai@fygo.io, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261102-work-procfs-core-v1-8-75df35e4f8b8@kernel.org> References: <20261102-work-procfs-core-v1-0-75df35e4f8b8@kernel.org> <20261102-work-procfs-core-v1-8-75df35e4f8b8@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 03 Nov 2026 15:01:17 +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=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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: Thank you for your contribution! Sashiko AI review found 1 potential issue(= s) to consider: - [Low] selftests/proc: Makefile and .gitignore entries in wrong commit -- commit 9de4ed28fcd6656e6c6c2bb55f1514d9aa6600f6 Author: Christian Brauner selftests/proc: check that a faulting reader doesn't hold up removal This commit adds a selftest in tools/testing/selftests/proc/proc-remove-slo= w-reader.c that verifies removing a /proc/net/dev_snmp6/ entry does not block whe= n a concurrent reader faults while copying to userspace via userfaultfd. > diff --git a/tools/testing/selftests/proc/proc-remove-slow-reader.c b/too= ls/testing/selftests/proc/proc-remove-slow-reader.c > new file mode 100644 > index 0000000000000..a201645beca9d > --- /dev/null > +++ b/tools/testing/selftests/proc/proc-remove-slow-reader.c > @@ -0,0 +1,133 @@ [ ... ] > +TEST(remove_while_reader_faults) > +{ [Severity: Low] Should this commit also include the corresponding tools/testing/selftests/p= roc/Makefile and tools/testing/selftests/proc/.gitignore entries for proc-remove-slow-re= ader? In the current series, those entries: tools/testing/selftests/proc/Makefile: TEST_GEN_PROGS +=3D proc-remove-slow-reader tools/testing/selftests/proc/.gitignore: /proc-remove-slow-reader were placed in the earlier commit ("selftests/proc: check that a faulting readlink() doesn't hold up removal") before proc-remove-slow-reader.c exist= s. Building tools/testing/selftests/proc at that earlier commit or any interme= diate commit before this one fails due to the missing source file, breaking bisec= tion, and cherry-picking this commit on its own leaves the new test unbuilt. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261102-work-procf= s-core-v1-0-75df35e4f8b8@kernel.org?part=3D8