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authorEric W. Biederman <ebiederm@xmission.com>2011-05-27 22:28:27 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-28 13:48:39 -0400
commit7b21fddd087678a70ad64afc0f632e0f1071b092 (patch)
treec3ee152ab9b57b6cbc1ee3c6fd495c704ec47f66 /arch/s390
parent14d74e0cab7a7779a7ff0c3863c04c8a8e507106 (diff)
ns: Wire up the setns system call
32bit and 64bit on x86 are tested and working. The rest I have looked at closely and I can't find any problems. setns is an easy system call to wire up. It just takes two ints so I don't expect any weird architecture porting problems. While doing this I have noticed that we have some architectures that are very slow to get new system calls. cris seems to be the slowest where the last system calls wired up were preadv and pwritev. avr32 is weird in that recvmmsg was wired up but never declared in unistd.h. frv is behind with perf_event_open being the last syscall wired up. On h8300 the last system call wired up was epoll_wait. On m32r the last system call wired up was fallocate. mn10300 has recvmmsg as the last system call wired up. The rest seem to at least have syncfs wired up which was new in the 2.6.39. v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com> v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com> v4: Moved wiring up of the system call to another patch v5: ported to v2.6.39-rc6 v6: rebased onto parisc-next and net-next to avoid syscall conflicts. v7: ported to Linus's latest post 2.6.39 tree. >  arch/blackfin/include/asm/unistd.h     |    3 ++- >  arch/blackfin/mach-common/entry.S      |    1 + Acked-by: Mike Frysinger <vapier@gentoo.org> Oh - ia64 wiring looks good. Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/unistd.h3
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
-rw-r--r--arch/s390/kernel/syscalls.S1
3 files changed, 9 insertions, 1 deletions
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 9208e69245a0..404bdb9671b4 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -276,7 +276,8 @@
276#define __NR_open_by_handle_at 336 276#define __NR_open_by_handle_at 336
277#define __NR_clock_adjtime 337 277#define __NR_clock_adjtime 337
278#define __NR_syncfs 338 278#define __NR_syncfs 338
279#define NR_syscalls 339 279#define __NR_setns 339
280#define NR_syscalls 340
280 281
281/* 282/*
282 * There are some system calls that are not present on 64 bit, some 283 * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 1dc96ea08fa8..1f5eb789c3a7 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1904,3 +1904,9 @@ compat_sys_clock_adjtime_wrapper:
1904sys_syncfs_wrapper: 1904sys_syncfs_wrapper:
1905 lgfr %r2,%r2 # int 1905 lgfr %r2,%r2 # int
1906 jg sys_syncfs 1906 jg sys_syncfs
1907
1908 .globl sys_setns_wrapper
1909sys_setns_wrapper:
1910 lgfr %r2,%r2 # int
1911 lgfr %r3,%r3 # int
1912 jg sys_setns
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 9c65fd4ddce0..6ee39ef8fe4a 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -347,3 +347,4 @@ SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrappe
347SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) 347SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper)
348SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper) 348SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper)
349SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper) 349SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper)
350SYSCALL(sys_setns,sys_setns,sys_setns_wrapper)