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Serge E. Hallyn e885dcde75 cgroup_clone: use pid of newly created task for new cgroup ... cgroup_clone creates a new cgroup with the pid of the task. This works correctly for unshare, but for clone cgroup_clone is called from copy_namespaces inside copy_process, which happens before the new pid is created. As a result, the new cgroup was created with current's pid. This patch: 1. Moves the call inside copy_process to after the new pid is created 2. Passes the struct pid into ns_cgroup_clone (as it is not yet attached to the task) 3. Passes a name from ns_cgroup_clone() into cgroup_clone() so as to keep cgroup_clone() itself simpler 4. Uses pid_vnr() to get the process id value, so that the pid used to name the new cgroup is always the pid as it would be known to the task which did the cloning or unsharing. I think that is the most intuitive thing to do. This way, task t1 does clone(CLONE_NEWPID) to get t2, which does clone(CLONE_NEWPID) to get t3, then the cgroup for t3 will be named for the pid by which t2 knows t3. (Thanks to Dan Smith for finding the main bug) Changelog: June 11: Incorporate Paul Menage's feedback: don't pass NULL to ns_cgroup_clone from unshare, and reduce patch size by using 'nodename' in cgroup_clone. June 10: Original version [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Serge Hallyn <serge@us.ibm.com> Acked-by: Paul Menage <menage@google.com> Tested-by: Dan Smith <danms@us.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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acpi	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	17 years ago
asm-alpha	clean up duplicated alloc/free_thread_info	17 years ago
asm-arm	clean up duplicated alloc/free_thread_info	17 years ago
asm-avr32	clean up duplicated alloc/free_thread_info	17 years ago
asm-blackfin	clean up duplicated alloc/free_thread_info	17 years ago
asm-cris	clean up duplicated alloc/free_thread_info	17 years ago
asm-frv	clean up duplicated alloc/free_thread_info	17 years ago
asm-generic	gpiolib: allow user-selection	17 years ago
asm-h8300	clean up duplicated alloc/free_thread_info	17 years ago
asm-ia64	clean up duplicated alloc/free_thread_info	17 years ago
asm-m32r	clean up duplicated alloc/free_thread_info	17 years ago
asm-m68k	clean up duplicated alloc/free_thread_info	17 years ago
asm-m68knommu	clean up duplicated alloc/free_thread_info	17 years ago
asm-mips	gpiolib: allow user-selection	17 years ago
asm-mn10300	clean up duplicated alloc/free_thread_info	17 years ago
asm-parisc	clean up duplicated alloc/free_thread_info	17 years ago
asm-powerpc	gpiolib: allow user-selection	17 years ago
asm-s390	clean up duplicated alloc/free_thread_info	17 years ago
asm-sh	clean up duplicated alloc/free_thread_info	17 years ago
asm-sparc	clean up duplicated alloc/free_thread_info	17 years ago
asm-sparc64	Remove asm/semaphore.h	17 years ago
asm-um	clean up duplicated alloc/free_thread_info	17 years ago
asm-v850	remove the v850 port	17 years ago
asm-x86	gpiolib: allow user-selection	17 years ago
asm-xtensa	clean up duplicated alloc/free_thread_info	17 years ago
crypto	…
drm	drm/radeon: fixup issue with radeon and PAT support.	17 years ago
keys	…
linux	cgroup_clone: use pid of newly created task for new cgroup	17 years ago
math-emu	…
media	V4L/DVB (8395): saa7134: Fix Kbuild dependency of ir-kbd-i2c	17 years ago
mtd	…
net	include: use get/put_unaligned_* helpers	17 years ago
pcmcia	…
rdma	RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event	17 years ago
rxrpc	…
scsi	driver core: remove KOBJ_NAME_LEN define	17 years ago
sound	…
video	neofb: drop the xtimings structure	17 years ago
xen	xen: implement Xen-specific spinlocks	17 years ago
Kbuild	…