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s390: wire up separate socketcalls system calls 

As discussed on linux-arch all architectures should wire up the separate
system calls that are hidden behind the socketcall multiplexer system call.

It's just a couple more system calls and gives us a very small performance
improvement.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2015-09-17 18:30:36 +02:00 committed by Martin Schwidefsky
parent 7681df456f
commit 977108f89c
4 changed files with 42 additions and 21 deletions
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20
arch/s390/include/asm/unistd.h
View File

@ -8,28 +8,8 @@
#include <uapi/asm/unistd.h>
#define __IGNORE_time
/* Ignore system calls that are also reachable via sys_socketcall */
#define __IGNORE_recvmmsg
#define __IGNORE_sendmmsg
#define __IGNORE_socket
#define __IGNORE_socketpair
#define __IGNORE_bind
#define __IGNORE_connect
#define __IGNORE_listen
#define __IGNORE_accept4
#define __IGNORE_getsockopt
#define __IGNORE_setsockopt
#define __IGNORE_getsockname
#define __IGNORE_getpeername
#define __IGNORE_sendto
#define __IGNORE_sendmsg
#define __IGNORE_recvfrom
#define __IGNORE_recvmsg
#define __IGNORE_shutdown
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME

19
arch/s390/include/uapi/asm/unistd.h
View File

@ -292,7 +292,24 @@
#define __NR_execveat 354
#define __NR_userfaultfd 355
#define __NR_membarrier 356
#define NR_syscalls 357
#define __NR_recvmmsg 357
#define __NR_sendmmsg 358
#define __NR_socket 359
#define __NR_socketpair 360
#define __NR_bind 361
#define __NR_connect 362
#define __NR_listen 363
#define __NR_accept4 364
#define __NR_getsockopt 365
#define __NR_setsockopt 366
#define __NR_getsockname 367
#define __NR_getpeername 368
#define __NR_sendto 369
#define __NR_sendmsg 370
#define __NR_recvfrom 371
#define __NR_recvmsg 372
#define __NR_shutdown 373
#define NR_syscalls 374
/*
* There are some system calls that are not present on 64 bit, some

7
arch/s390/kernel/compat_wrapper.c
View File

@ -169,3 +169,10 @@ COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, fla
COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length);
COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length);
COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec);
COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen);
COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen);
COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags);
COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);

17
arch/s390/kernel/syscalls.S
View File

@ -365,3 +365,20 @@ SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
SYSCALL(sys_execveat,compat_sys_execveat)
SYSCALL(sys_userfaultfd,sys_userfaultfd) /* 355 */
SYSCALL(sys_membarrier,sys_membarrier)
SYSCALL(sys_recvmmsg,compat_sys_recvmmsg)
SYSCALL(sys_sendmmsg,compat_sys_sendmmsg)
SYSCALL(sys_socket,sys_socket)
SYSCALL(sys_socketpair,compat_sys_socketpair) /* 360 */
SYSCALL(sys_bind,sys_bind)
SYSCALL(sys_connect,sys_connect)
SYSCALL(sys_listen,sys_listen)
SYSCALL(sys_accept4,sys_accept4)
SYSCALL(sys_getsockopt,compat_sys_getsockopt) /* 365 */
SYSCALL(sys_setsockopt,compat_sys_setsockopt)
SYSCALL(sys_getsockname,compat_sys_getsockname)
SYSCALL(sys_getpeername,compat_sys_getpeername)
SYSCALL(sys_sendto,compat_sys_sendto)
SYSCALL(sys_sendmsg,compat_sys_sendmsg) /* 370 */
SYSCALL(sys_recvfrom,compat_sys_recvfrom)
SYSCALL(sys_recvmsg,compat_sys_recvmsg)
SYSCALL(sys_shutdown,sys_shutdown)