arch: wire-up pidfd_open()

This wires up the pidfd_open() syscall into all arches at once.

Signed-off-by: Christian Brauner <christian@brauner.io>
Reviewed-by: David Howells <dhowells@redhat.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jann Horn <jannh@google.com>
Cc: Andy Lutomirsky <luto@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-api@vger.kernel.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org

arch/alpha/kernel/syscalls/syscall.tbl

@@ -473,3 +473,4 @@
 541	common	fsconfig			sys_fsconfig
 542	common	fsmount				sys_fsmount
 543	common	fspick				sys_fspick
+544	common	pidfd_open			sys_pidfd_open

arch/arm/tools/syscall.tbl

@@ -447,3 +447,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/arm64/include/asm/unistd.h

@@ -44,7 +44,7 @@
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE + 5)
 #define __ARM_NR_COMPAT_END		(__ARM_NR_COMPAT_BASE + 0x800)
 
-#define __NR_compat_syscalls		434
+#define __NR_compat_syscalls		435
 #endif
 
 #define __ARCH_WANT_SYS_CLONE

arch/arm64/include/asm/unistd32.h

@@ -886,6 +886,8 @@ __SYSCALL(__NR_fsconfig, sys_fsconfig)
 __SYSCALL(__NR_fsmount, sys_fsmount)
 #define __NR_fspick 433
 __SYSCALL(__NR_fspick, sys_fspick)
+#define __NR_pidfd_open 434
+__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
 
 /*
  * Please add new compat syscalls above this comment and update

arch/ia64/kernel/syscalls/syscall.tbl

@@ -354,3 +354,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/m68k/kernel/syscalls/syscall.tbl

@@ -433,3 +433,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/microblaze/kernel/syscalls/syscall.tbl

@@ -439,3 +439,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/mips/kernel/syscalls/syscall_n32.tbl

@@ -372,3 +372,4 @@
 431	n32	fsconfig			sys_fsconfig
 432	n32	fsmount				sys_fsmount
 433	n32	fspick				sys_fspick
+434	n32	pidfd_open			sys_pidfd_open

arch/mips/kernel/syscalls/syscall_n64.tbl

@@ -348,3 +348,4 @@
 431	n64	fsconfig			sys_fsconfig
 432	n64	fsmount				sys_fsmount
 433	n64	fspick				sys_fspick
+434	n64	pidfd_open			sys_pidfd_open

arch/mips/kernel/syscalls/syscall_o32.tbl

@@ -421,3 +421,4 @@
 431	o32	fsconfig			sys_fsconfig
 432	o32	fsmount				sys_fsmount
 433	o32	fspick				sys_fspick
+434	o32	pidfd_open			sys_pidfd_open

arch/parisc/kernel/syscalls/syscall.tbl

@@ -430,3 +430,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/powerpc/kernel/syscalls/syscall.tbl

@@ -515,3 +515,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/s390/kernel/syscalls/syscall.tbl

@@ -436,3 +436,4 @@
 431  common	fsconfig		sys_fsconfig			sys_fsconfig
 432  common	fsmount			sys_fsmount			sys_fsmount
 433  common	fspick			sys_fspick			sys_fspick
+434  common	pidfd_open		sys_pidfd_open			sys_pidfd_open

arch/sh/kernel/syscalls/syscall.tbl

@@ -436,3 +436,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/sparc/kernel/syscalls/syscall.tbl

@@ -479,3 +479,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

arch/x86/entry/syscalls/syscall_32.tbl

@@ -438,3 +438,4 @@
 431	i386	fsconfig		sys_fsconfig			__ia32_sys_fsconfig
 432	i386	fsmount			sys_fsmount			__ia32_sys_fsmount
 433	i386	fspick			sys_fspick			__ia32_sys_fspick
+434	i386	pidfd_open		sys_pidfd_open			__ia32_sys_pidfd_open

arch/x86/entry/syscalls/syscall_64.tbl

@@ -355,6 +355,7 @@
 431	common	fsconfig		__x64_sys_fsconfig
 432	common	fsmount			__x64_sys_fsmount
 433	common	fspick			__x64_sys_fspick
+434	common	pidfd_open		__x64_sys_pidfd_open
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact

arch/xtensa/kernel/syscalls/syscall.tbl

@@ -404,3 +404,4 @@
 431	common	fsconfig			sys_fsconfig
 432	common	fsmount				sys_fsmount
 433	common	fspick				sys_fspick
+434	common	pidfd_open			sys_pidfd_open

include/uapi/asm-generic/unistd.h

@@ -844,9 +844,11 @@ __SYSCALL(__NR_fsconfig, sys_fsconfig)
 __SYSCALL(__NR_fsmount, sys_fsmount)
 #define __NR_fspick 433
 __SYSCALL(__NR_fspick, sys_fspick)
+#define __NR_pidfd_open 434
+__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
 
 #undef __NR_syscalls
-#define __NR_syscalls 434
+#define __NR_syscalls 435
 
 /*
  * 32 bit systems traditionally used different