> --- a/fs/namespace.c
> +++ b/fs/namespace.c
> @@ -1258,6 +1258,15 @@ struct vfsmount *fc_mount(struct fs_context *fc)
> }
> EXPORT_SYMBOL(fc_mount);
>
> +struct vfsmount *fc_mount_longterm(struct fs_context *fc)
> +{
> + struct vfsmount *mnt = fc_mount(fc);
> + if (!IS_ERR(mnt))
> + real_mount(mnt)->mnt_ns = MNT_NS_INTERNAL;
> + return mnt;
> +}
> +EXPORT_SYMBOL(fc_mount_longterm);
> +
> struct vfsmount *vfs_kern_mount(struct file_system_type *type,
> int flags, const char *name,
> void *data)
> diff --git a/include/linux/mount.h b/include/linux/mount.h
> index dcc17ce8a959..9376d76dd61f 100644
> --- a/include/linux/mount.h
> +++ b/include/linux/mount.h
> @@ -94,6 +94,7 @@ int mnt_get_write_access(struct vfsmount *mnt);
> void mnt_put_write_access(struct vfsmount *mnt);
>
> extern struct vfsmount *fc_mount(struct fs_context *fc);
> +extern struct vfsmount *fc_mount_longterm(struct fs_context *fc);
> extern struct vfsmount *vfs_create_mount(struct fs_context *fc);
> extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
> int flags, const char *name,
> diff --git a/ipc/mqueue.c b/ipc/mqueue.c
> index 35b4f8659904..daabf7f02b63 100644
> --- a/ipc/mqueue.c
> +++ b/ipc/mqueue.c
> @@ -482,7 +482,7 @@ static struct vfsmount *mq_create_mount(struct ipc_namespace *ns)
> put_user_ns(fc->user_ns);
> fc->user_ns = get_user_ns(ctx->ipc_ns->user_ns);
>
> - mnt = fc_mount(fc);
> + mnt = fc_mount_longterm(fc);
> put_fs_context(fc);
> return mnt;
> }
All seems fine to me,
Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx>
