Commit 5518aed8 authored Jul 14, 2019 by Vasily Gorbik Committed by Heiko Carstens Jul 23, 2019

s390: wire up clone3 system call

Tested (64-bit and compat mode) using program from
http://lkml.kernel.org/r/20190604212930.jaaztvkent32b7d3@brauner.io


with the following:
       return syscall(__NR_clone, flags, 0, pidfd, 0, 0);
changed to:
       return syscall(__NR_clone, 0, flags, pidfd, 0, 0);
due to CLONE_BACKWARDS2.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

parent a963609e

arch/s390/include/asm/unistd.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -34,5 +34,6 @@
		#define __ARCH_WANT_SYS_FORK
		#define __ARCH_WANT_SYS_VFORK
		#define __ARCH_WANT_SYS_CLONE
		#define __ARCH_WANT_SYS_CLONE3

		#endif /* _ASM_S390_UNISTD_H_ */

arch/s390/kernel/syscalls/syscall.tbl

+1 −1

Original line number	Diff line number	Diff line
		@@ -437,4 +437,4 @@
		432 common fsmount sys_fsmount sys_fsmount
		433 common fspick sys_fspick sys_fspick
		434 common pidfd_open sys_pidfd_open sys_pidfd_open
		# 435 reserved for clone3
		435 common clone3 sys_clone3 sys_clone3