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 BCA87606A327 for ; Fri, 13 Nov 2026 19:35:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=Fl++uMOg; dkim=pass (2048-bit key) header.d=amutable-com.20260707.gappssmtp.com header.i=@amutable-com.20260707.gappssmtp.com header.a=rsa-sha256 header.s=20260707 header.b=goncA3zZ 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:MIME-Version: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:Cc:To:From :Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=/ZNAGjGCHSUHK/hbpNrctHFuArQcFUaSPHFuYTd8W2k=; b=Fl++uMOgey4MC/xLDYDtAZ05z7 yj8wVNfWdaUso94Qk8jBhJIU3bjow0QUSjGf3nSlP7Y4tjNIzM20Vx8Cva6OWWVJJrm9VA30vMAIL Ygwu+tQ3qe+cagaidddX/XPZ741pAoiItT7W4GqAiAU8UDOeJWyX87H0E23NZhoep7HTS4IbC6RTe jOOWyJtNN+e7MwYJwMlyDYsvgbbPTb6MC8Ee2aFrK6ETtv8nUoDLD1LSeWT2HX4DudEzdwLLNi+Fu i3XZIdh7Mc01S5umQ2R+88Xmuw9W383hGwYgj3cqT86dsZ0jQDomqfkvyVOolErloVBS3MW5doYO/ thry1dhg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRx3Q-0000000ECrL-08Vr; Fri, 13 Nov 2026 19:35:20 +0000 Received: from mail-ej1-x62f.google.com ([2a00:1450:4864:20::62f]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRoA6-0000000CIa0-1rH0 for linux-nvme@lists.infradead.org; Fri, 13 Nov 2026 10:05:39 +0000 Received: by mail-ej1-x62f.google.com with SMTP id a640c23a62f3a-c5075fa7ed0so161294766b.2 for ; Fri, 13 Nov 2026 02:05:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amutable-com.20260707.gappssmtp.com; s=20260707; t=1794564336; x=1795169136; darn=lists.infradead.org; h=mime-version:user-agent:content-transfer-encoding:content-type :references:in-reply-to:date:cc:to:from:subject:message-id:from:to :cc:subject:date:message-id:reply-to:content-type; bh=/ZNAGjGCHSUHK/hbpNrctHFuArQcFUaSPHFuYTd8W2k=; b=goncA3zZVe3QiwXxSPXbQp6NTjvJ2a76z3s1fqLv/nVCnKKPOpZAO6o+uWrcmTXxqW COFGXUNqBnxLxvaykdDfLThsockAG+1ue6i1sSL+lkg72i9DC7i7DuDitG3CC1P0pbn9 iZUGWbpDydDiLKF5vQpnD+3wa3tPULJcm0pvZSmXooaBQNfnPTBHM4KqUmkdqMt2v10w exolhoCfkc0rUNREVU9M0z3jea2ew2lXBhlLOOGTwJYNF1WRDnY5sQgQgrLWDInAVG2+ zTuarQTv6FRPqzyhQlGAzX8w9k4FaWaVL/DJFnY1+eglMFBnLD7Lq3SgEFS4vGNg2ybA OK7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794564336; x=1795169136; h=mime-version:user-agent:content-transfer-encoding:content-type :references:in-reply-to:date:cc:to:from:subject:message-id:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=/ZNAGjGCHSUHK/hbpNrctHFuArQcFUaSPHFuYTd8W2k=; b=r4EHVB2wnuv1hSfxB+UBcF70IqvMA9Pgt4l8mKbaBYmfUDGFTksChlq6h0GMop5T7n qC60UqOQwgFiGsIxSNziz0dG6kGZ8YeIkN/2swE0iIvsOEffM1HP1z7iQ4M13O5atFsz JUqpGBjh/LM4rXp3q9yZf7HRiSH+wKEFe16aeuEbPo8SoL0Ur8oh9zMfzIc4VorKVgZy dT+474q5Ta2iEEQeqt9r8N4OVuKaAqctS5SqyDt99TTALBPf+qNYDCK5iSY54aARuWDh UMHU0A+Ev7SEMz29z6iASf5A19moJFiotK6PVBJVdOsjioRUXXOmFOwYxpL0WVqT68c8 F7kg== X-Forwarded-Encrypted: i=1; AL+hErHAZNgUopdzmaIEgAsIqhD6MkuidfXqa2GuptRmrMFP0P667QHQgPoKLjIB4YTbXt+YWhNAwI2wSBVt@lists.infradead.org X-Gm-Message-State: APuU4Z/YfWdpLvayj0ijirfXckaOegCbNbVwL6SWs51tGV3wd8+Nj23d LBYX4lZjOgAsk5pO1cbrMeqtc1JYuSdtvwq3B2LdM7JTC1ERoN/9GvbaRImyQ1Hpy1Xg X-Gm-Gg: AYBFou179sqpUsKIbNSoefDU3dAt4vDmZjK0VJykowwNLJYmsDuFzFyVTPFqelagVVW HtLqvB3J2wQDntXqin1NgmiCOzrMutIzxCMbPzFuEEymJjhaaGMHCpKiukEpAf1REKm7XI6qO6P iOMXdO3q9QTpsmLGWdnXEqg7qGF/8zmV2+Jc+HDL+sq0wyERFKrAcQ61+OBSJj8bCLGuQ/GuD7h GmVn8eLfYDjnGEEFTl5gsWT12J4ug3jgTIrnVW7weB//5wDCmk2l2GQ2lXuAuPtSzl73fm+gVD1 pDHNJHxIc55dR+TME0DH7JP+GGJRA4seJKCWZhg1+BH8WmoefQc8QUErdRyVEomrH/yf1zkGEb/ 2qY7r+K0dyzMuGp3I1fo5AW8bLZtPsumvQfjeyuyP0EFj7+qO2CJ3pFP44Qp/xHQlJyecNYWINP MaQyN2to7nJJLGRPUJ87GY3ukka8GCn16Y+LfqL7OGxLmzj5vnS1mU1WQhrpSawNjkoEipZm3E4 RcRQW4jWyZoO3gwss/OCB163K9OEH5xilIQcQkU++1bHQIstQN3xNBy8PvaICKXfuBREtEeM4+V Qj0GFC81ujbL2P1ZqSZTqSyk6y+awoDnibASMsjH6JLo6EePUZWqTK7aJPWyDGM= X-Received: by 2002:a17:907:94cb:b0:c2e:3a72:ffbd with SMTP id a640c23a62f3a-c5096389759mr162937766b.41.1794564336347; Fri, 13 Nov 2026 02:05:36 -0800 (PST) Received: from [10.0.0.233] (tmo-086-54.customers.d1-online.com. [80.187.86.54]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c5095a5b93csm75365566b.5.2026.11.13.02.05.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Nov 2026 02:05:35 -0800 (PST) Message-ID: <8f532a01f6cc2eb73582864343e25be4ec990919.camel@amutable.com> Subject: Re: [PATCH RFC 14/41] debugfs: use fc_init_pseudo() From: Alexander Mikhalitsyn To: Christian Brauner , 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 Date: Fri, 13 Nov 2026 11:05:34 +0100 In-Reply-To: <20261110-work-loop-pseudo-v1-14-4c998976c6c7@kernel.org> References: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> <20261110-work-loop-pseudo-v1-14-4c998976c6c7@kernel.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2-0+deb13u1 X-Archived-By: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261113_020538_498246_8C81A438 X-CRM114-Status: GOOD ( 12.20 ) X-Spam-Score: -1.9 (-) X-Mailman-Approved-At: Fri, 13 Nov 2026 11:35:09 -0800 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 On Tue, 2026-11-10 at 10:14 +0100, Christian Brauner wrote: > 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. >=20 > SB_I_NOEXEC also refuses PROT_EXEC mappings. The debugfs files that > can be mapped, kcov, relay channels and powernv's memtrace, map data. >=20 > Signed-off-by: Christian Brauner (Amutable) Reviewed-by: Alexander Mikhalitsyn > --- > =C2=A0fs/debugfs/inode.c | 2 ++ > =C2=A01 file changed, 2 insertions(+) >=20 > 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 @@ > =C2=A0#include > =C2=A0#include > =C2=A0#include > +#include > =C2=A0#include > =C2=A0#include > =C2=A0#include > @@ -317,6 +318,7 @@ static int debugfs_init_fs_context(struct > fs_context *fc) > =C2=A0 fsi->mode =3D DEBUGFS_DEFAULT_MODE; > =C2=A0 > =C2=A0 fc->s_fs_info =3D fsi; > + fc_init_pseudo(fc); > =C2=A0 fc->ops =3D &debugfs_context_ops; > =C2=A0 return 0; > =C2=A0}