The patch titled
namespaces: move the UTS namespace under UTS_NS option
has been removed from the -mm tree. Its filename was
move-the-uts-namespace-under-uts_ns-option.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: namespaces: move the UTS namespace under UTS_NS option
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
Currently all the namespace management code is in the kernel/utsname.c file,
so just compile it out and make stubs in the appropriate header.
The init namespace itself is in init/version.c and is in the kernel all the
time.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
Cc: Cedric Le Goater <clg@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Herbert Poetzl <herbert@xxxxxxxxxxxx>
Cc: Kirill Korotaev <dev@xxxxx>
Cc: Sukadev Bhattiprolu <sukadev@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/utsname.h | 21 +++++++++++++++++++++
init/Kconfig | 7 +++++++
kernel/Makefile | 3 ++-
3 files changed, 30 insertions(+), 1 deletion(-)
diff -puN include/linux/utsname.h~move-the-uts-namespace-under-uts_ns-option include/linux/utsname.h
--- a/include/linux/utsname.h~move-the-uts-namespace-under-uts_ns-option
+++ a/include/linux/utsname.h
@@ -35,6 +35,7 @@ struct new_utsname {
#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/nsproxy.h>
+#include <linux/err.h>
#include <asm/atomic.h>
struct uts_namespace {
@@ -43,6 +44,7 @@ struct uts_namespace {
};
extern struct uts_namespace init_uts_ns;
+#ifdef CONFIG_UTS_NS
static inline void get_uts_ns(struct uts_namespace *ns)
{
kref_get(&ns->kref);
@@ -56,6 +58,25 @@ static inline void put_uts_ns(struct uts
{
kref_put(&ns->kref, free_uts_ns);
}
+#else
+static inline void get_uts_ns(struct uts_namespace *ns)
+{
+}
+
+static inline void put_uts_ns(struct uts_namespace *ns)
+{
+}
+
+static inline struct uts_namespace *copy_utsname(unsigned long flags,
+ struct uts_namespace *ns)
+{
+ if (flags & CLONE_NEWUTS)
+ return ERR_PTR(-EINVAL);
+
+ return ns;
+}
+#endif
+
static inline struct new_utsname *utsname(void)
{
return ¤t->nsproxy->uts_ns->name;
diff -puN init/Kconfig~move-the-uts-namespace-under-uts_ns-option init/Kconfig
--- a/init/Kconfig~move-the-uts-namespace-under-uts_ns-option
+++ a/init/Kconfig
@@ -429,6 +429,13 @@ config NAMESPACES
or same user id or pid may refer to different tasks when used in
different namespaces.
+config UTS_NS
+ bool "UTS namespace"
+ depends on NAMESPACES
+ help
+ In this namespace tasks see different info provided with the
+ uname() system call
+
config BLK_DEV_INITRD
bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
depends on BROKEN || !FRV
diff -puN kernel/Makefile~move-the-uts-namespace-under-uts_ns-option kernel/Makefile
--- a/kernel/Makefile~move-the-uts-namespace-under-uts_ns-option
+++ a/kernel/Makefile
@@ -9,7 +9,7 @@ obj-y = sched.o fork.o exec_domain.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 nsproxy.o srcu.o \
- utsname.o notifier.o ksysfs.o pm_qos_params.o
+ notifier.o ksysfs.o pm_qos_params.o
obj-$(CONFIG_SYSCTL) += sysctl_check.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
@@ -33,6 +33,7 @@ obj-$(CONFIG_PROVE_LOCKING) += spinlock.
obj-$(CONFIG_UID16) += uid16.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_KALLSYMS) += kallsyms.o
+obj-$(CONFIG_UTS_NS) += utsname.o
obj-$(CONFIG_PM) += power/
obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
obj-$(CONFIG_KEXEC) += kexec.o
_
Patches currently in -mm which might be from xemul@xxxxxxxxxx are
origin.patch
revert-proc-fix-the-threaded-proc-self.patch
use-find_task_by_vpid-in-audit-code.patch
ia64-fix-ptrace-inside-a-namespace.patch
mips-use-find_task_by_vpid-in-system-calls.patch
deprecate-find_task_by_pid-kgdb.patch
use-find_task_by_vpid-in-taskstats.patch
deprecate-find_task_by_pid.patch
reiser4.patch
-
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