From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.218.52 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794564338; b=WYOSzo1/xriYrs2+n9Zo6OgKPcc6b4o6JKa9/4R0Y/3/BkMbADAKOx5kbOJrf4s4p0D0 L+r04Jv9Z0TjROss3H/drkYnOCgw4wdynDq/i7E7i6AABmYJV4is9E9vk9NVRIjjBCocj Aa99MYjNgC3ubdhqacMNEEDwVklIf3iIk59OGzBJDguhWY6R+rkCJx3djpxWQYFhOEDyW /L/bDpXi7SE/G73OBBwRlUhqRQaD6hz3yohIzpz8qJsarsLz74NN29uBA6sRMW9ctRIHz 4QV+4tBQe47fKoUD+dNrvN4BeTlmSD5/S+v5YnT3Lv8HeuwjOU1f9UyPcddK8oLFn0A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794564338; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:Content-Transfer-Encoding:User-Agent:MIME-Version; bh=/ZNAGjGCHSUHK/hbpNrctHFuArQcFUaSPHFuYTd8W2k=; b=bTemtyXn668GITY2QHTSqVq/1XRIkK0YVD6kCqS3COi/088lrFluBs1hGzJt01DMR+S2 1q7/Gd1uQy5+Qi4e3gZoraPzxM4JPJlLaxYfxTmyC4E2UGgbdyteMVIm8z/GLOErlxOUD h9+Q9MmicCaX2B6Kv8iqJXlINncdaSZ9Ag5TT9wT0/QPSPawEI97UBlUdhOHd0FPWyEIp w4yY97Y5CrmHrn5lnfPCReWGkpyVYUTsVOzsgmQEIfOJaeda/zVMwu8Xc/moH9I10rqMu fd73cmZzFYqFv+mcaM+oYer07QQToedLfm/NwBTX5FXD/HhKtaVvti7+4NCezyZRgMg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=amutable.com; spf=pass smtp.mailfrom=amutable.com; dkim=pass header.d=amutable-com.20260707.gappssmtp.com header.i=@amutable-com.20260707.gappssmtp.com header.a=rsa-sha256 header.s=20260707 header.b="BcN8/JZ3"; arc=none smtp.remote-ip=209.85.218.52 Received: from mail-ej1-f52.google.com (mail-ej1-f52.google.com [209.85.218.52]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E76C8606B137 for ; Fri, 13 Nov 2026 10:05:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E76C8606B137 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=amutable.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amutable.com Authentication-Results: smtp.subspace.kernel.org; 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=BcN8/JZ3 Received: by mail-ej1-f52.google.com with SMTP id a640c23a62f3a-c4322d310e7so190391366b.0 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=vger.kernel.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=BcN8/JZ3o8G8RngOszXG3JTNOcmRF7Y5HhcgHfEFuj8bd59D6/ZB+k5Qh/rpeFRCcR ddACGgLLZgU5b3f6uROOjMlLzNHxLpnDWTvmFTIG7dNNkaJHDW07G6TO1gom3Rvc3G6a phj31A4a6/nEoCYWD8i1KXLteYhy5qLcfDwMY03tf9yOOPsaa+sC0St/LDVgowIEHsk0 tZO/CMI2RrlSiK2F32OSWBbCdipxonxIIN0DBtho56nDsRF+fFDKa92VHmnJVt2oHACg qH7hz+1dQBsoiVIgFoQGohYiLAIIKP/PCGAm0hHsixZQutOWB167lk9DbkeNw+vQ2Hrh L2Sg== 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=Mc86raR4ebwd0Rt8aYLSjoJImLB73dm0FoKynr64tf7eXEr4TwFLLGUrB35n60FGW5 3KWdohGYe+dDsryyawNcs2Tx8rK+9S4Qhd6KjCvNBCE7MmBTyDvOJqKfHL85I+puGXQc 2WKHbg0zhuR062mQnPmN0rt1hA+0acCOx01HyvleAiquDTXrWzg8Xp/yGHtoi9eh1YTp BXxIaC3xo1gXrLOJbgff3FVsGxurwwEOK50kyiqcBT1mfHlCbuzgSOFZ4xDBXAOS3MBM +u6EfxgOd2XhIPetBlX0BMrS2HCY4Ld5DOs1zrVHk00RTEgz/9t/wWVEkQVCaAblfigy G+cw== X-Forwarded-Encrypted: i=1; AL+hErGTFUub+bgt25ERCWMYsVUgeU10Yp5PllUBKl38mB1Ap536529G0hL3UzIuw8JX7C/6+rmPMgU=@vger.kernel.org X-Gm-Message-State: APuU4Z+oCpsauSXJZ3bRTVJCdot30n4hCO71Sq4eH+vEcDX8zvMfPjcM VzocUf6z4Z3p3WVd6R6gW+B3A8fOs7sZnZq9P8nzEKEPI76y4N5zTTegZVoNuHwMfmgU X-Gm-Gg: AYBFou303w2Hr6jkZpXNBasCQ5vArK8P73Z/aC4bL3fh5KApkjhn7ZX4eH6mSMK+rSM hdMcA99UjYfBp01b3+dfVgg8sQNGKEINRyM+khPEJ1+XlnoMqym2Fk7qjNo5LixxmwCtcksgMYF XHcYctpeWRLu+HAqaSv5IkBqnzdWahBbmu1Q9js2ElJNAth+SPYzQ6kl9HE5fwgwrJ7B87FODLB bHuO1r8My+HLmnLFxWnOnHKPdr6d4WHJypUp0UZaMCG8UvO08D+BXbLKC3+0VO3bQs9XIYlGIOZ Ad5SH7WPb4Kg64WZDg4zhYqeGRT7aHPsNAYa8hpMS8qfwSayWGp5WHhBKHmYBOgpBdd6GoREy95 uXyDruG/aq3di5/kPwr6I+pvdVis16cyg2oosVCva+3JoWoCkNF7nwFSkF/D/vKqLt7arWS7T3P 5HA7auDrVNTK/bB6W2szkJNTHr/ZmNq/Hq+ff++1nVdb3AyPMiAkSSXP+po90VclrDRxez8Bayq fvD3gE13TFLoC3x4H7pCe0YaA6RyV+4M3gZ8QiQI3lWx9nn4QDJHC3To/tnowvZgMo1ygaQqyBA 28boLY+C0w1EBZulEga7EtRpsAo8mOKTdl5OhAuU7J5UnZfACPXXd8OdusCJShg= 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-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 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}