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Pavel Emelyanov 73507f335f Handle pid namespaces in cgroups code 
There's one place that works with task pids - its the "tasks" file in cgroups.
 The read/write handlers assume, that the pid values go to/come from the user
space and thus it is a virtual pid, i.e.  the pid as it is seen from inside a
namespace.

Tune the code accordingly.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:22 -08:00
..
irq
genirq: stackdump after the "Trying to free already-free IRQ" message
2008-01-30 13:33:24 +01:00
power
kernel/power/disk.c: make code static
2008-02-05 09:44:22 -08:00
time
time: fix sysfs_show_{available,current}_clocksources() buffer overflow problem
2008-02-06 10:41:03 -08:00
.gitignore
gitignore: ignore more generated files
2006-01-03 11:35:26 +01:00
acct.c
acct: real_parent ppid
2008-01-07 14:55:37 -08:00
audit_tree.c
[PATCH] audit: watching subtrees
2007-10-21 02:37:45 -04:00
audit.c
[AUDIT] ratelimit printk messages audit
2008-02-01 14:25:04 -05:00
audit.h
[PATCH] audit: watching subtrees
2007-10-21 02:37:45 -04:00
auditfilter.c
[AUDIT] make audit=0 really stop audit messages
2008-02-01 14:24:33 -05:00
auditsc.c
[AUDIT] create context if auditing was ever enabled
2008-02-01 14:24:45 -05:00
backtracetest.c
x86: add a simple backtrace test module
2008-01-30 13:33:08 +01:00
capability.c
Add 64-bit capability support to the kernel
2008-02-05 09:44:20 -08:00
cgroup_debug.c
Task Control Groups: simple task cgroup debug info subsystem
2007-10-19 11:53:36 -07:00
cgroup.c
Handle pid namespaces in cgroups code
2008-02-07 08:42:22 -08:00
compat.c
Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt
2007-10-18 15:12:41 -07:00
configs.c
use simple_read_from_buffer in kernel/
2007-05-09 12:30:49 -07:00
cpu.c
cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()
2008-01-25 21:08:02 +01:00
cpuset.c
hotplug cpu move tasks in empty cpusets - refinements
2008-02-07 08:42:22 -08:00
delayacct.c
Add scaled time to taskstats based process accounting
2007-10-18 14:37:28 -07:00
dma.c
whitespace fixes: DMA channel allocator
2007-10-18 14:37:24 -07:00
exec_domain.c
whitespace fixes: execution domains
2007-10-18 14:37:26 -07:00
exit.c
do_wait: remove one "else if" branch
2008-02-06 10:41:04 -08:00
extable.c
module: Don't report discarded init pages as kernel text.
2008-01-29 17:13:18 +11:00
fork.c
Memory controller: accounting setup
2008-02-07 08:42:18 -08:00
futex_compat.c
futex: Add bitset conditional wait/wakeup functionality
2008-02-01 17:45:14 +01:00
futex.c
futex: Add bitset conditional wait/wakeup functionality
2008-02-01 17:45:14 +01:00
hrtimer.c
timerfd: new timerfd API
2008-02-05 09:44:07 -08:00
itimer.c
whitespace fixes: interval timers
2007-10-18 14:37:26 -07:00
kallsyms.c
remove support for un-needed _extratext section
2008-02-06 10:41:01 -08:00
Kconfig.hz
sched: high-res preemption tick
2008-01-25 21:08:29 +01:00
Kconfig.preempt
sched: remove the !PREEMPT_BKL code
2008-01-25 21:08:33 +01:00
kexec.c
vmcoreinfo: add the array length of "free_list" for filtering free pages
2008-01-08 16:10:36 -08:00
kfifo.c
is_power_of_2: kernel/kfifo.c
2007-07-16 09:05:50 -07:00
kmod.c
Fix unbalanced helper_lock in kernel/kmod.c
2008-01-17 15:38:59 -08:00
kprobes.c
kprobes: kretprobe user entry-handler
2008-02-06 10:41:11 -08:00
ksysfs.c
Kobject: convert remaining kobject_unregister() to kobject_put()
2008-01-24 20:40:40 -08:00
kthread.c
sched: fix, always create kernel threads with normal priority
2008-01-25 21:08:33 +01:00
latencytop.c
sched: latencytop support
2008-01-25 21:08:34 +01:00
lockdep_internals.h
[PATCH] lockdep: more chains
2006-12-07 08:39:43 -08:00
lockdep_proc.c
lockdep: Avoid /proc/lockdep & lock_stat infinite output
2007-10-11 22:11:11 +02:00
lockdep.c
softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks
2008-01-25 21:08:02 +01:00
Makefile
Memory controller: resource counters
2008-02-07 08:42:18 -08:00
marker.c
Linux Kernel Markers: fix marker mutex not taken upon module load
2007-11-14 18:45:40 -08:00
module.c
x86/non-x86: percpu, node ids, apic ids x86.git fixup
2008-01-30 13:33:32 +01:00
mutex-debug.c
[PATCH] remove many unneeded #includes of sched.h
2007-02-14 08:09:54 -08:00
mutex-debug.h
[PATCH] lockdep: better lock debugging
2006-07-03 15:27:01 -07:00
mutex.c
Add mutex_lock_killable
2007-12-06 17:37:59 -05:00
mutex.h
[PATCH] lockdep: prove mutex locking correctness
2006-07-03 15:27:04 -07:00
notifier.c
kernel/notifier.c should #include <linux/reboot.h>
2008-02-06 10:41:02 -08:00
ns_cgroup.c
cgroups: implement namespace tracking subsystem
2007-10-19 11:53:37 -07:00
nsproxy.c
pid namespaces: allow cloning of new namespace
2007-10-19 11:53:39 -07:00
panic.c
debug: add the end-of-trace marker and the module list to
2008-01-30 13:32:50 +01:00
params.c
kernel/params.c: remove sparse-warning (different signedness)
2008-02-06 10:41:08 -08:00
pid.c
gfs2: make gfs2_glock.gl_owner_pid be a struct pid *
2008-02-07 08:42:06 -08:00
pm_qos_params.c
pm qos infrastructure and interface
2008-02-05 09:44:22 -08:00
posix-cpu-timers.c
sched: rt-watchdog: fix .rlim_max = RLIM_INFINITY
2008-01-25 21:08:32 +01:00
posix-timers.c
timerfd: new timerfd API
2008-02-05 09:44:07 -08:00
printk.c
printk.c: use unsigned ints instead of longs for logbuf index
2008-02-06 10:41:04 -08:00
profile.c
debug: clean up kernel/profile.c
2008-01-25 21:08:33 +01:00
ptrace.c
kernel/ptrace.c should #include <linux/syscalls.h>
2008-02-06 10:41:02 -08:00
rcuclassic.c
Preempt-RCU: implementation
2008-01-25 21:08:24 +01:00
rcupdate.c
Preempt-RCU: fix rcu_barrier for preemptive environment.
2008-01-25 21:08:24 +01:00
rcupreempt_trace.c
Preempt-RCU: implementation
2008-01-25 21:08:24 +01:00
rcupreempt.c
Preempt-RCU: CPU Hotplug handling
2008-01-25 21:08:25 +01:00
rcutorture.c
cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()
2008-01-25 21:08:02 +01:00
relay.c
relay: nopage
2008-02-06 10:41:07 -08:00
res_counter.c
Memory controller improve user interface
2008-02-07 08:42:18 -08:00
resource.c
Add IORESOUCE_BUSY flag for System RAM
2007-11-14 18:45:39 -08:00
rtmutex_common.h
FUTEX: Tidy up the code
2007-07-16 09:05:49 -07:00
rtmutex-debug.c
Use helpers to obtain task pid in printks
2007-10-19 11:53:43 -07:00
rtmutex-debug.h
[PATCH] lockdep: better lock debugging
2006-07-03 15:27:01 -07:00
rtmutex-tester.c
Driver core: change sysdev classes to use dynamic kobject names
2008-01-24 20:40:40 -08:00
rtmutex.c
Use helpers to obtain task pid in printks
2007-10-19 11:53:43 -07:00
rtmutex.h
[PATCH] lockdep: better lock debugging
2006-07-03 15:27:01 -07:00
rwsem.c
sched: mark rwsem functions as __sched for wchan/profiling
2007-12-18 15:21:13 +01:00
sched_debug.c
sched: keep total / count stats in addition to the max for
2008-01-25 21:08:35 +01:00
sched_fair.c
sched: let +nice tasks have smaller impact
2008-01-31 22:45:22 +01:00
sched_idletask.c
sched: high-res preemption tick
2008-01-25 21:08:29 +01:00
sched_rt.c
sched: fix goto retry in pick_next_task_rt()
2008-01-25 21:08:34 +01:00
sched_stats.h
sched: clean up kernel/sched_stat.h
2007-11-28 15:52:56 +01:00
sched.c
Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc
2008-02-01 11:45:47 +11:00
seccomp.c
make seccomp zerocost in schedule
2007-07-16 09:05:50 -07:00
signal.c
Add arch_ptrace_stop
2008-02-06 10:41:07 -08:00
softirq.c
time: track accurate idle time with tick_sched.idle_sleeptime
2008-01-30 13:30:04 +01:00
softlockup.c
debug: softlockup looping fix
2008-02-02 14:27:45 +11:00
spinlock.c
spinlock: lockbreak cleanup
2008-01-30 13:31:20 +01:00
srcu.c
make srcu_readers_active() static
2008-02-06 10:41:02 -08:00
stacktrace.c
[PATCH] lockdep: stacktrace subsystem, core
2006-07-03 15:27:02 -07:00
stop_machine.c
stopmachine: semaphore to mutex
2008-02-06 10:41:08 -08:00
sys_ni.c
timerfd: new timerfd API
2008-02-05 09:44:07 -08:00
sys.c
kernel/sys.c: get rid of expensive divides in groups_sort()
2008-02-06 10:41:09 -08:00
sysctl_check.c
capabilities: introduce per-process capability bounding set
2008-02-05 09:44:20 -08:00
sysctl.c
oom: add sysctl to enable task memory dump
2008-02-07 08:42:19 -08:00
taskstats.c
kernel/taskstats.c: fix bogus nlmsg_free()
2007-11-14 18:45:44 -08:00
test_kprobes.c
kprobes: kretprobe user entry-handler
2008-02-06 10:41:11 -08:00
time.c
speed up jiffies conversion functions if HZ==USER_HZ
2008-02-06 10:41:10 -08:00
timer.c
taskstats scaled time cleanup
2008-02-06 10:41:00 -08:00
tsacct.c
Add scaled time to taskstats based process accounting
2007-10-18 14:37:28 -07:00
uid16.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
user_namespace.c
Fix user namespace exiting OOPs
2007-09-19 11:24:18 -07:00
user.c
uids: merge multiple error paths in alloc_uid() into one
2008-01-25 21:08:26 +01:00
utsname_sysctl.c
Isolate the UTS namespace's domainname and hostname back
2007-11-29 09:24:53 -08:00
utsname.c
Fix UTS corruption during clone(CLONE_NEWUTS)
2007-09-19 11:24:17 -07:00
wait.c
wait: Use TASK_NORMAL
2007-12-06 17:34:36 -05:00
workqueue.c
cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()
2008-01-25 21:08:02 +01:00