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| author | Cedric Le Goater <clg@fr.ibm.com> | 2007-07-15 23:40:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:47 -0700 |
| commit | 7d69a1f4a72b18876c99c697692b78339d491568 (patch) | |
| tree | c09faf07f15240592919ec7e3dd722fe4f1dd370 /kernel | |
| parent | 522ed7767e800cff6c650ec64b0ee0677303119c (diff) | |
| download | linux-7d69a1f4a72b18876c99c697692b78339d491568.tar.gz linux-7d69a1f4a72b18876c99c697692b78339d491568.tar.bz2 linux-7d69a1f4a72b18876c99c697692b78339d491568.zip | |
remove CONFIG_UTS_NS and CONFIG_IPC_NS
CONFIG_UTS_NS and CONFIG_IPC_NS have very little value as they only
deactivate the unshare of the uts and ipc namespaces and do not improve
performance.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/Makefile | 4 | ||||
| -rw-r--r-- | kernel/nsproxy.c | 10 | ||||
| -rw-r--r-- | kernel/utsname_sysctl.c | 5 |
3 files changed, 3 insertions, 16 deletions
diff --git a/kernel/Makefile b/kernel/Makefile index 642d4277c2ea..fa8efd437afb 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -8,7 +8,8 @@ obj-y = sched.o fork.o exec_domain.o panic.o printk.o profile.o \ signal.o sys.o kmod.o workqueue.o pid.o \ rcupdate.o extable.o params.o posix-timers.o \ kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \ - hrtimer.o rwsem.o latency.o nsproxy.o srcu.o die_notifier.o + hrtimer.o rwsem.o latency.o nsproxy.o srcu.o die_notifier.o \ + utsname.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-y += time/ @@ -48,7 +49,6 @@ obj-$(CONFIG_SECCOMP) += seccomp.o obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o obj-$(CONFIG_RELAY) += relay.o obj-$(CONFIG_SYSCTL) += utsname_sysctl.o -obj-$(CONFIG_UTS_NS) += utsname.o obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index 9e83b589f754..e38bed75367d 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -155,16 +155,6 @@ int unshare_nsproxy_namespaces(unsigned long unshare_flags, if (!(unshare_flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC))) return 0; -#ifndef CONFIG_IPC_NS - if (unshare_flags & CLONE_NEWIPC) - return -EINVAL; -#endif - -#ifndef CONFIG_UTS_NS - if (unshare_flags & CLONE_NEWUTS) - return -EINVAL; -#endif - if (!capable(CAP_SYS_ADMIN)) return -EPERM; diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c index f22b9dbd2a9c..c76c06466bfd 100644 --- a/kernel/utsname_sysctl.c +++ b/kernel/utsname_sysctl.c @@ -18,10 +18,7 @@ static void *get_uts(ctl_table *table, int write) { char *which = table->data; -#ifdef CONFIG_UTS_NS - struct uts_namespace *uts_ns = current->nsproxy->uts_ns; - which = (which - (char *)&init_uts_ns) + (char *)uts_ns; -#endif + if (!write) down_read(&uts_sem); else |