From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BAA72606B16E for ; Tue, 10 Nov 2026 09:18:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ZazHNZp9 Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4jP1Jb2l6Jz3br5; Tue, 10 Nov 2026 20:17:35 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1794302255; cv=none; b=QPCu1C86wEJ404cqcMRqIAqgLa4wGz6gwjmuA1HxeAQO6ffiaCtv1uufM4PjpekCYh7OGVAxRJod3Z4hKzEUjvZPO8CYnOEOwemZ9xgTCNlWydA4DWtv0JopBfWBwNb/yTRPwPQUiBgC/YG1MDTqqzG7P9Ii3iaJKyYCrGOZEKwFn+ZaRYVIs7vtxJ9/Xho3JtcwDD5eE7hLf25+wqK/OUrUNy/n3KBSwTxHyV012BIow7R/HeHyU1n1cgoeWKti8FbpOCMBE//jS1BX27EMhjqm3cUKWY4RESoDL9olltlRvoZ3SdpVoOuW8lr3jdYtHo9xCnRVqzBaqQSh/BA2Sw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1794302255; c=relaxed/relaxed; bh=is6/oCzWlYT0dy5hhdJaeL3p/9SOujmsKB1o+eMmEtY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=gFwGfsxqLEpgtJbXMh/fljoAq5Ng26ICJZB4cifh/gZUIztdxqAr17eRvpBodWtEsJP34jAZ60EwyT8LahFV4ChKSd3IwH36X9u+pTGjGSAhVfFzWMU8UZ/oWV/qgToDbkJWO/EqWckUND1zwEO7hS6jAK79CIbIZ/Gn/558cv4pCfPjMbRU+tVvagCUtNFdVhHdb3ymav2hh3o+PQJoNSQC2+oQxk3CxAZDGBBu3PxuE75GwuENAznJ2V+79BjbYiwl+DhNUCimZbZFrDiY5VWmxj2fmtxVleQGcoe3Ad37vPsoi1M0dTSOqnw00Lqx+8GJkms9lXhcEyZoi7ZyQg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ZazHNZp9; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=brauner@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ZazHNZp9; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=brauner@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4jP1JZ5wl5z3bqh; Tue, 10 Nov 2026 20:17:34 +1100 (AEDT) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 5531D4166B; Tue, 10 Nov 2026 09:17:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0867E1F008A3; Tue, 10 Nov 2026 09:17:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794302253; bh=is6/oCzWlYT0dy5hhdJaeL3p/9SOujmsKB1o+eMmEtY=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=ZazHNZp9OYbLw5mOghlT7zT71BJtkKFeTeYcEEEKzzDfsXiViM/CU7Z8cqPuBHNmQ e9Qsk2tN4gY4RJ80Z+UUxi9qzyvuPPNm8ps8zOEOpz7rLmAYJ6n7ctVBBlUT6hriyl KooXsFO8OBY87qPing6B2f+iBZiovte1ZeeWe7o4pK+dmJB9iSNS/HlIBxl0Amx46b gPvb9WPdxrBx6TvqW3glbSTH9bY6q5ObY70N6N4qYVjM2ZhX+jdcQ4SzRPts34JoOG w3dAqOx+U6EfK5Jcx8iiCprAhcZ+V/vGt/hia8DQYE5ftDBbr0PZ3CyxQdoj/Bvs3n V978BIl4Z9EIQ== From: Christian Brauner Date: Tue, 10 Nov 2026 10:14:30 +0100 Subject: [PATCH RFC 14/41] debugfs: use fc_init_pseudo() X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261110-work-loop-pseudo-v1-14-4c998976c6c7@kernel.org> References: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> In-Reply-To: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Jann Horn , Chris Mason , Josef Bacik , Christoph Hellwig , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, Alexander Viro , Jan Kara , linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, driver-core@lists.linux.dev, linux-mm@kvack.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org, apparmor@lists.ubuntu.com, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, fuse-devel@lists.linux.dev, linux-efi@vger.kernel.org, xen-devel@lists.xenproject.org, ocfs2-devel@lists.linux.dev, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-usb@vger.kernel.org, Amir Goldstein , linux-erofs@lists.ozlabs.org, linux-kselftest@vger.kernel.org, "Christian Brauner (Amutable)" X-Mailer: b4 0.17-dev-ce4c1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1035; i=brauner@kernel.org; h=from:subject:message-id; bh=MkToblHF88kh8NI/b687M2tj3J3ly45eToQK3A7xE2E=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWR9erDEXWDJqs8a6Uaz4h5pdum8snm92LRlGYv8/rrdx ++tihfu7yhlYRDjYpAVU2RxaDcJl1vOU7HZKFMDZg4rE8gQBi5OAZjIXgeG/7nTnxz5dOX1QYaX PAb8ovMeP3CTevdb7d/7G5YRbf0/Nn1l+O/6l1t14a8Lqh23G9cePX75b+SKyohL6acucmz+3vh s+zYeAA== X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 Initialize debugfs as a pseudo filesystem. This raises SB_I_PSEUDO and also SB_I_NOEXEC and SB_I_NODEV. debugfs never holds executables or device nodes. SB_I_NOEXEC also refuses PROT_EXEC mappings. The debugfs files that can be mapped, kcov, relay channels and powernv's memtrace, map data. Signed-off-by: Christian Brauner (Amutable) --- fs/debugfs/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index b4915551ad31..f163f0bc5703 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -317,6 +318,7 @@ static int debugfs_init_fs_context(struct fs_context *fc) fsi->mode = DEBUGFS_DEFAULT_MODE; fc->s_fs_info = fsi; + fc_init_pseudo(fc); fc->ops = &debugfs_context_ops; return 0; } -- 2.53.0