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Re: [PATCH RFC 23/41] fuse: use fc_init_pseudo() for fusectl
- To: Christian Brauner <brauner@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx
- From: Alexander Mikhalitsyn <alex@xxxxxxxxxxxx>
- Date: Fri, 13 Nov 2026 11:13:24 +0100
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- Cc: Jann Horn <jannh@xxxxxxxxxx>, Chris Mason <mason@xxxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, driver-core@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-security-module@xxxxxxxxxxxxxxx, selinux@xxxxxxxxxxxxxxx, apparmor@xxxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, fuse-devel@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, ocfs2-devel@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-usb@xxxxxxxxxxxxxxx, Amir Goldstein <amir73il@xxxxxxxxx>, linux-erofs@xxxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx
- Delivery-date: Fri, 13 Nov 2026 10:16:31 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, 2026-11-10 at 10:14 +0100, Christian Brauner wrote:
> Initialize fusectl as a pseudo filesystem. This raises SB_I_PSEUDO
> and
> also SB_I_NOEXEC and SB_I_NODEV. fusectl never holds executables or
> device nodes.
>
> Signed-off-by: Christian Brauner (Amutable) <brauner@xxxxxxxxxx>
Reviewed-by: Alexander Mikhalitsyn <alex@xxxxxxxxxxxx>
> ---
> fs/fuse/control.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/fs/fuse/control.c b/fs/fuse/control.c
> index 21ffde596d61..4497362e7df0 100644
> --- a/fs/fuse/control.c
> +++ b/fs/fuse/control.c
> @@ -10,6 +10,7 @@
> #include <linux/init.h>
> #include <linux/module.h>
> #include <linux/fs_context.h>
> +#include <linux/pseudo_fs.h>
> #include <linux/namei.h>
>
> #define FUSE_CTL_SUPER_MAGIC 0x65735543
> @@ -334,6 +335,7 @@ static const struct fs_context_operations
> fuse_ctl_context_ops = {
>
> static int fuse_ctl_init_fs_context(struct fs_context *fsc)
> {
> + fc_init_pseudo(fsc);
> fsc->ops = &fuse_ctl_context_ops;
> return 0;
> }
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