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Pavel Emelyanov b488893a39 pid namespaces: changes to show virtual ids to user 
This is the largest patch in the set. Make all (I hope) the places where
the pid is shown to or get from user operate on the virtual pids.

The idea is:
 - all in-kernel data structures must store either struct pid itself
   or the pid's global nr, obtained with pid_nr() call;
 - when seeking the task from kernel code with the stored id one
   should use find_task_by_pid() call that works with global pids;
 - when showing pid's numerical value to the user the virtual one
   should be used, but however when one shows task's pid outside this
   task's namespace the global one is to be used;
 - when getting the pid from userspace one need to consider this as
   the virtual one and use appropriate task/pid-searching functions.

[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: nuther build fix]
[akpm@linux-foundation.org: yet nuther build fix]
[akpm@linux-foundation.org: remove unneeded casts]
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Paul Menage <menage@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-10-19 11:53:40 -07:00
..
acorn/char unicode diacritics support 2007-10-17 08:42:52 -07:00
acpi Hibernation: Check if ACPI is enabled during restore in the right place 2007-10-18 14:37:20 -07:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ata Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2007-10-18 15:08:35 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
auxdisplay
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base sparse pointer use of zero as null 2007-10-18 14:37:31 -07:00
block Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
bluetooth
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cdrom sysctl: remove broken cdrom binary sysctls 2007-10-18 14:37:23 -07:00
char pid namespaces: changes to show virtual ids to user 2007-10-19 11:53:40 -07:00
clocksource
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connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dca I/OAT: Add DCA services 2007-10-16 09:43:09 -07:00
dio
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dma I/OAT: Add completion callback for async_tx interface use 2007-10-18 14:37:32 -07:00
edac Drivers: clean up direct setting of the name of a kset 2007-10-12 14:51:02 -07:00
eisa signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
fc4 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
firewire firewire: fw-cdev: reorder wakeup vs. spinlock 2007-10-17 00:00:10 +02:00
firmware Driver core: rename ktype_edd and ktype_efivar 2007-10-12 14:51:12 -07:00
hid HID: fix HIDIOCGRDESC memory access in hidraw 2007-10-15 08:12:00 -07:00
hwmon Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
i2c Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ide ide: set drive->autotune in ide_pci_setup_ports() 2007-10-19 00:30:12 +02:00
ieee1394 ieee1394: ieee1394_core.c: use DEFINE_SPINLOCK for spinlock definition 2007-10-16 23:59:59 +02:00
infiniband Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
input freezer: introduce freezer-friendly waiting macros 2007-10-18 14:37:19 -07:00
isdn isdn/sc: remove unused REQUEST_IRQ and unnecessary header file 2007-10-19 11:53:34 -07:00
kvm sched: guest CPU accounting: maintain guest state in KVM 2007-10-15 17:00:19 +02:00
leds Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
lguest Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2007-10-17 11:10:11 -07:00
macintosh fix adbhid mismerge 2007-10-16 19:04:49 -07:00
mca
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md md: make sure read errors are auto-corrected during a 'check' resync in raid1 2007-10-17 08:43:03 -07:00
media Replace __attribute_pure__ with __pure 2007-10-18 14:37:32 -07:00
message I2O: Fix "defined but not used" build warnings 2007-10-17 08:42:56 -07:00
mfd
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misc Driver for the Atmel on-chip SSC on AT32AP and AT91 2007-10-17 08:42:47 -07:00
mmc mmc: at91_mci: cleanup: use MCI_ERRORS 2007-10-17 21:35:10 +02:00
mtd Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
net Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2007-10-18 19:31:54 -07:00
nubus
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of [SPARC/64]: Consolidate of_register_driver 2007-10-17 21:17:42 -07:00
oprofile
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parisc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
parport sysctl: parport remove binary paths 2007-10-18 14:37:23 -07:00
pci Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.c 2007-10-15 09:07:58 -07:00
pcmcia pcmcia: CompactFlash driver for PA Semi Electra boards 2007-10-17 08:42:48 -07:00
pnp PNP: add debug message for adding new device 2007-10-17 08:43:04 -07:00
power Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ps3 ps3av: remove unused fields in ps3av_monitor_quirks 2007-10-19 11:53:33 -07:00
rapidio
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rtc Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
s390 unicode diacritics support 2007-10-17 08:42:52 -07:00
sbus [SPARC] Videopix Frame Grabber: Convert device_lock_sem to mutex 2007-10-17 19:40:31 -07:00
scsi advansys: depends on VIRT_TO_BUS 2007-10-19 11:53:33 -07:00
serial serial: turn serial console suspend a boot rather than compile time option 2007-10-18 14:37:19 -07:00
sh
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sn
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spi Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ssb [PATCH] ssb: fix build failure 2007-10-16 21:04:11 -04:00
tc lk201: remove obsolete driver 2007-10-17 08:42:57 -07:00
telephony kconfig: syntax cleanup - drop support for "depends/requires/def_boolean" 2007-10-12 21:20:32 +02:00
uio
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usb Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
video Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
w1 Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
watchdog mv watchdog tree under drivers 2007-10-18 10:39:03 +00:00
xen Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
zorro
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Kconfig mv watchdog tree under drivers 2007-10-18 10:39:03 +00:00
Makefile mv watchdog tree under drivers 2007-10-18 10:39:03 +00:00