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>,
Alexander Mikhalitsyn <alex@amutable.com>
Subject: [PATCH RFC v2 10/42] nullfs: use fc_init_pseudo()
Date: Sat, 14 Nov 2026 14:01:51 +0100 [thread overview]
Message-ID: <20261114-work-loop-pseudo-v2-10-98639a2286fb@kernel.org> (raw)
In-Reply-To: <20261114-work-loop-pseudo-v2-0-98639a2286fb@kernel.org>
Initialize nullfs 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 <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alexander Mikhalitsyn <alex@amutable.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
---
fs/nullfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/nullfs.c b/fs/nullfs.c
index 319c2f5c5a671..2fe24cb97160e 100644
--- a/fs/nullfs.c
+++ b/fs/nullfs.c
@@ -2,6 +2,7 @@
/* Copyright (c) 2026 Christian Brauner <brauner@kernel.org> */
#include <linux/fs/super_types.h>
#include <linux/fs_context.h>
+#include <linux/pseudo_fs.h>
#include <linux/magic.h>
#include <linux/splice.h>
#include <linux/uio.h>
@@ -174,7 +175,7 @@ static int nullfs_init_fs_context(struct fs_context *fc)
{
fc->ops = &nullfs_fs_context_ops;
fc->sb_flags |= SB_NOUSER;
- fc->s_iflags |= SB_I_NOEXEC | SB_I_NODEV;
+ fc_init_pseudo(fc);
return 0;
}
--
2.53.0
next prev parent reply other threads:[~2026-11-14 13:06 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-14 13:01 [PATCH RFC v2 00/42] fs: don't use pseudo filesystem files as storage Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 01/42] loop: refuse backing files that aren't open for reading Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 02/42] nvmet: check that the file backend supports ->{read,write}_iter Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 03/42] target: fileio: check that the backing file " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 04/42] fs: add SB_I_PSEUDO Christian Brauner
2026-11-14 13:54 ` bot+bpf-ci
2026-11-14 13:01 ` [PATCH RFC v2 05/42] kernfs: use fc_init_pseudo() Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 06/42] proc: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 07/42] binfmt_misc: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 08/42] mqueue: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 09/42] bpf: use fc_init_pseudo() for bpffs Christian Brauner
2026-11-14 13:01 ` Christian Brauner [this message]
2026-11-14 13:01 ` [PATCH RFC v2 11/42] failfs: use fc_init_pseudo() Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 12/42] rust_binderfs: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 13/42] devpts: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 14/42] debugfs: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 15/42] tracefs: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 16/42] configfs: " Christian Brauner
2026-11-14 13:01 ` [PATCH RFC v2 17/42] securityfs: " Christian Brauner
2026-11-14 13:54 ` bot+bpf-ci
2026-11-14 13:01 ` [PATCH RFC v2 18/42] selinux: use fc_init_pseudo() for selinuxfs Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 19/42] smack: use fc_init_pseudo() for smackfs Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 20/42] apparmor: use fc_init_pseudo() for apparmorfs Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 21/42] nfsd: use fc_init_pseudo() Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 22/42] sunrpc: use fc_init_pseudo() for rpc_pipefs Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 23/42] fuse: use fc_init_pseudo() for fusectl Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 24/42] efivarfs: use fc_init_pseudo() Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 25/42] pstore: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 26/42] xenfs: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 27/42] openpromfs: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 28/42] ocfs2: use fc_init_pseudo() for dlmfs Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 29/42] s390/hypfs: use fc_init_pseudo() Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 30/42] powerpc/spufs: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 31/42] usb: gadget: f_fs: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 32/42] usb: gadget: gadgetfs: " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 33/42] fs: add file_check_backing() Christian Brauner
2026-11-14 13:55 ` bot+bpf-ci
2026-11-14 13:02 ` [PATCH RFC v2 34/42] loop: refuse files on pseudo filesystems as backing files Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 35/42] zloop: refuse zone files on pseudo filesystems Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 36/42] nvmet: refuse files on pseudo filesystems as namespace backing files Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 37/42] target: fileio: refuse files on pseudo filesystems as " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 38/42] fuse: refuse files on pseudo filesystems as passthrough " Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 39/42] usb: gadget: f_mass_storage: refuse files on pseudo filesystems Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 40/42] erofs: refuse files on pseudo filesystems as backing files Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 41/42] acct: refuse files on pseudo filesystems Christian Brauner
2026-11-14 13:02 ` [PATCH RFC v2 42/42] selftests/filesystems: add backing file tests for pseudo files Christian Brauner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261114-work-loop-pseudo-v2-10-98639a2286fb@kernel.org \
--to=brauner@kernel.org \
--cc=alex@amutable.com \
--cc=amir73il@gmail.com \
--cc=apparmor@lists.ubuntu.com \
--cc=bpf@vger.kernel.org \
--cc=driver-core@lists.linux.dev \
--cc=fuse-devel@lists.linux.dev \
--cc=hch@lst.de \
--cc=jack@suse.cz \
--cc=jannh@google.com \
--cc=josef@toxicpanda.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-efi@vger.kernel.org \
--cc=linux-erofs@lists.ozlabs.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nfs@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mason@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=ocfs2-devel@lists.linux.dev \
--cc=selinux@vger.kernel.org \
--cc=target-devel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®