linux-kernel - Re: [PATCH v19 09/12] arch: Wire up landlock() syscall

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Message-ID: <CAK8P3a0docCqHkEn9C7=e0GC_ieN1dsYgKQ9PbUmSZYxh9MRnw@mail.gmail.com>
Date:   Wed, 8 Jul 2020 09:22:39 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Mickaël Salaün <mic@...ikod.net>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Andy Lutomirski <luto@...capital.net>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Casey Schaufler <casey@...aufler-ca.com>,
        James Morris <jmorris@...ei.org>, Jann Horn <jannh@...gle.com>,
        Jeff Dike <jdike@...toit.com>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Mickaël Salaün <mickael.salaun@....gouv.fr>,
        Richard Weinberger <richard@....at>,
        "Serge E . Hallyn" <serge@...lyn.com>,
        Shuah Khan <shuah@...nel.org>,
        Vincent Dagonneau <vincent.dagonneau@....gouv.fr>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Linux API <linux-api@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        LSM List <linux-security-module@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [PATCH v19 09/12] arch: Wire up landlock() syscall

On Tue, Jul 7, 2020 at 8:10 PM Mickaël Salaün <mic@...ikod.net> wrote:

> index f4a01305d9a6..a63a411a74d5 100644
> --- a/include/uapi/asm-generic/unistd.h
> +++ b/include/uapi/asm-generic/unistd.h
> @@ -857,9 +857,11 @@ __SYSCALL(__NR_openat2, sys_openat2)
>  __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
>  #define __NR_faccessat2 439
>  __SYSCALL(__NR_faccessat2, sys_faccessat2)
> +#define __NR_landlock 440
> +__SYSCALL(__NR_landlock, sys_landlock)
>
>  #undef __NR_syscalls
> -#define __NR_syscalls 440
> +#define __NR_syscalls 441

In linux-next, we already have:

+#define __NR_watch_mount 440
+#define __NR_watch_sb 441
+#define __NR_fsinfo 442
+#define __NR_process_madvise 443

You may want to increase the number again.

      Arnd