From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794661579; b=Rags3tSoeXDuO7SeAmj/+WKoUvvbiGTvEIm7n1/VG0gpaUzTKN9m6Sj8kf70ran3W3sC ejY8+5oHVu57bGCe4kzmSTv/f60sT16nyu1ADZJ4sPaho1ZS525QLJAwx5eZU4GdyzBZQ IzWZNZs64tATQjWOKWzeBG+diWhbv9S2R0CVqwdyc0zMAk9JD0m6a8gFkkj6BMwGPgRbc mQnuGn25ESlnshWdbF8VEV36CNQoac5sla1/hHZYF/vP3ISRXKF0DG+Y/YMIVpKanKW8t 7NEPY8LszJu5rfWcRGjClaouHt+Qqv+ggJTdp+qhQRcz75SKriwITmYLjyIX62xhajw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794661579; h=Received:DKIM-Signature:From:Date:Subject:MIME-Version:Content-Type: Content-Transfer-Encoding:Message-Id:References:In-Reply-To:To:Cc: X-Mailer:X-Developer-Signature:X-Developer-Key; bh=NnRPpMKcN9yVfeXQRaQnGebNudMmHI+DUOfgXRvZF2k=; b=YhnnJSnYuK2/AZhMh2d361FOmvbBcao44lqve78T71CNODGJrF8exUVXT8MfIa5SiiOD ymMnpoOwjx0azlIzpbVI/5HET+j5vXsgPk90/vRWDBQfTXjaqN7k762MExNY6P8TWgM2d xV5+jS6AsvuIEazmgy1fvd51+PgkQFzidgN3519RQKqTGHQIPtYkv+kXx5Q5iFfGb+ZjT 268vIni7WUkyrOafEvO/xlYj74+5c9gbyIcPSC2NP4QhthTuXXXUnmKSsS+q/EIfWd2do aYEgXtdSZuQVN+2E/o1HowhWs9nj9cN9bAI8I81K85lslP758dAQM+WUP4toKMCcYSg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="N/ubtL31"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (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 147BB606D292; Sat, 14 Nov 2026 13:06:18 +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=N/ubtL31 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C0B41F000C5; Sat, 14 Nov 2026 13:06:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794661578; bh=NnRPpMKcN9yVfeXQRaQnGebNudMmHI+DUOfgXRvZF2k=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=N/ubtL31jom4eCsfCr6WpwL+MzKUK+rWwpFr4vgqMUy06gbO86k3xFL/VlhTtjybt o3d0PDdbLEy9jHXv7T5i3zo1EBRIqVAu/ZacRS1retYyYhxmkcSel3BM1zOn1JXfvT j1dl7rLX/nE/c0hHw7WYlCxm5LtmKhEmBxCBiL0Rx0/pMBD9F5WQlfq+VoGsYrh6sB EoBC//ArgbDcTnWusWXsxEQCVbMy6hCKCNl3yIXPnFUODMjEzsMezuDoTZo4Jytdw+ VM9ybNeR637U1rMcm9u8t7d6wvsPa1ke2eVusyEuf1MTwKev4R1WEMPGbBHytx3Eq8 fhAsIGxVLYMEg== From: Christian Brauner Date: Sat, 14 Nov 2026 14:01:47 +0100 Subject: [PATCH RFC v2 06/42] proc: use fc_init_pseudo() X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261114-work-loop-pseudo-v2-6-98639a2286fb@kernel.org> References: <20261114-work-loop-pseudo-v2-0-98639a2286fb@kernel.org> In-Reply-To: <20261114-work-loop-pseudo-v2-0-98639a2286fb@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)" , Alexander Mikhalitsyn X-Mailer: b4 0.17-dev-ce4c1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1408; i=brauner@kernel.org; h=from:subject:message-id; bh=wvImD7sMv1Zo1NPwHwuuoeuuUg5KPRN98RPqhNbSu40=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWT9iMnpmesutyB8V/b0LVcfp532arap6m4r+hdd5Hsq7 Xz78q6OjlIWBjEuBlkxRRaHdpNwueU8FZuNMjVg5rAygQxh4OIUgIlIsjMyvFL6nBbm+cmh7cNW o+/+y5gDpu7PW1vMKy676K58p8+pVwy/WQr/TZnocHWqxVPTHZNuH104SXi/kiln1+yjJ8vj0nb O4QUA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Initialize procfs as a pseudo filesystem instead of raising SB_I_NOEXEC and SB_I_NODEV by hand. This adds SB_I_PSEUDO. Reviewed-by: Jan Kara Reviewed-by: Christoph Hellwig Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner (Amutable) --- fs/proc/root.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/proc/root.c b/fs/proc/root.c index 7fbbe92bf73a7..ca0e75081934f 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -265,8 +266,6 @@ static int proc_fill_super(struct super_block *s, struct fs_context *fc) if (ret) return ret; - /* User space would break if executables or devices appear on proc */ - s->s_iflags |= SB_I_NOEXEC | SB_I_NODEV; s->s_flags |= SB_NODIRATIME | SB_NOSUID | SB_NOEXEC; s->s_blocksize = 1024; s->s_blocksize_bits = 10; @@ -350,6 +349,7 @@ static int proc_init_fs_context(struct fs_context *fc) put_user_ns(fc->user_ns); fc->user_ns = get_user_ns(ctx->pid_ns->user_ns); fc->fs_private = ctx; + fc_init_pseudo(fc); fc->ops = &proc_fs_context_ops; return 0; } -- 2.53.0