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From: Christian Brauner <brauner@kernel.org>
To: linux-fsdevel@vger.kernel.org
Cc: Jann Horn <jannh@google.com>, Chris Mason <mason@kernel.org>,
	 Josef Bacik <josef@toxicpanda.com>,
	Christoph Hellwig <hch@lst.de>,
	 linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-nvme@lists.infradead.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	 Jan Kara <jack@suse.cz>,
	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 <amir73il@gmail.com>,
	linux-erofs@lists.ozlabs.org,  linux-kselftest@vger.kernel.org,
	 "Christian Brauner (Amutable)" <brauner@kernel.org>
Subject: [PATCH RFC 24/41] efivarfs: use fc_init_pseudo()
Date: Tue, 10 Nov 2026 10:14:40 +0100	[thread overview]
Message-ID: <20261110-work-loop-pseudo-v1-24-4c998976c6c7@kernel.org> (raw)
In-Reply-To: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org>

Initialize efivarfs as a pseudo filesystem. This raises SB_I_PSEUDO and
also SB_I_NOEXEC and SB_I_NODEV. efivarfs never holds executables or
device nodes.

Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
---
 fs/efivarfs/super.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 12746ced6dc6..e598d42c5f42 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -8,6 +8,7 @@
 #include <linux/efi.h>
 #include <linux/fs.h>
 #include <linux/fs_context.h>
+#include <linux/pseudo_fs.h>
 #include <linux/fs_parser.h>
 #include <linux/module.h>
 #include <linux/pagemap.h>
@@ -554,6 +555,7 @@ static int efivarfs_init_fs_context(struct fs_context *fc)
 	}
 
 	fc->s_fs_info = sfi;
+	fc_init_pseudo(fc);
 	fc->ops = &efivarfs_context_ops;
 
 	return 0;

-- 
2.53.0


  parent reply	other threads:[~2026-11-10  9:18 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-10  9:14 [PATCH RFC 00/41] fs: don't use pseudo filesystem files as storage Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 01/41] loop: refuse backing files that aren't open for reading Christian Brauner
2026-11-10 12:53   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 02/41] nvmet: check that the file backend supports ->{read,write}_iter Christian Brauner
2026-11-10 12:53   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 03/41] target: fileio: check that the backing file " Christian Brauner
2026-11-10 12:54   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 04/41] fs: add SB_I_PSEUDO Christian Brauner
2026-11-10 12:55   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 05/41] kernfs: use fc_init_pseudo() Christian Brauner
2026-11-10 12:56   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 06/41] proc: " Christian Brauner
2026-11-10 12:56   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 07/41] binfmt_misc: " Christian Brauner
2026-11-10 12:56   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 08/41] mqueue: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 09/41] bpf: use fc_init_pseudo() for bpffs Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 10/41] nullfs: use fc_init_pseudo() Christian Brauner
2026-11-10 12:57   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 11/41] failfs: " Christian Brauner
2026-11-10 12:57   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 12/41] rust_binderfs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 13/41] devpts: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 14/41] debugfs: " Christian Brauner
2026-11-10 12:59   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 15/41] tracefs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 16/41] configfs: " Christian Brauner
2026-11-10 12:59   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 17/41] securityfs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 18/41] selinux: use fc_init_pseudo() for selinuxfs Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 19/41] smack: use fc_init_pseudo() for smackfs Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 20/41] apparmor: use fc_init_pseudo() for apparmorfs Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 21/41] nfsd: use fc_init_pseudo() Christian Brauner
2026-11-10 14:55   ` Chuck Lever
2026-11-10  9:14 ` [PATCH RFC 22/41] sunrpc: use fc_init_pseudo() for rpc_pipefs Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 23/41] fuse: use fc_init_pseudo() for fusectl Christian Brauner
2026-11-10  9:14 ` Christian Brauner [this message]
2026-11-10  9:14 ` [PATCH RFC 25/41] pstore: use fc_init_pseudo() Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 26/41] xenfs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 27/41] openpromfs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 28/41] ocfs2: use fc_init_pseudo() for dlmfs Christian Brauner
2026-11-10 13:01   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 29/41] s390/hypfs: use fc_init_pseudo() Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 30/41] powerpc/spufs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 31/41] usb: gadget: f_fs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 32/41] usb: gadget: gadgetfs: " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 33/41] fs: add file_is_pseudo() Christian Brauner
2026-11-10 13:02   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 34/41] loop: refuse files on pseudo filesystems as backing files Christian Brauner
2026-11-10 13:03   ` Jan Kara
2026-11-10  9:14 ` [PATCH RFC 35/41] zloop: refuse zone files on pseudo filesystems Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 36/41] nvmet: refuse files on pseudo filesystems as namespace backing files Christian Brauner
2026-11-10 15:07   ` Bui Nguyen Nhu Quynh
2026-11-10  9:14 ` [PATCH RFC 37/41] target: fileio: refuse files on pseudo filesystems as " Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 38/41] fuse: refuse files on pseudo filesystems as passthrough " Christian Brauner
2026-11-10 10:14   ` Amir Goldstein
2026-11-10  9:14 ` [PATCH RFC 39/41] usb: gadget: f_mass_storage: refuse files on pseudo filesystems Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 40/41] erofs: refuse files on pseudo filesystems as backing files Christian Brauner
2026-11-10  9:14 ` [PATCH RFC 41/41] selftests/filesystems: add backing file tests for pseudo files Christian Brauner

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