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linux-2.6
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linux-2.6/kernel
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Frederic Weisbecker 2bb2ba9d51 rescounters: add res_counter_uncharge_until() 
When killing a res_counter which is a child of other counter, we need to
do

	res_counter_uncharge(child, xxx)
	res_counter_charge(parent, xxx)

This is not atomic and wastes CPU.  This patch adds
res_counter_uncharge_until().  This function's uncharge propagates to
ancestors until specified res_counter.

	res_counter_uncharge_until(child, parent, xxx)

Now the operation is atomic and efficient.

Signed-off-by: Frederic Weisbecker <fweisbec@redhat.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ying Han <yinghan@google.com>
Cc: Glauber Costa <glommer@parallels.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-05-29 16:22:27 -07:00
..
debug
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events Merge branch 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-24 11:39:34 -07:00
gcov
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irq irqdomain changes for v3.5 merge window 2012-05-24 13:55:24 -07:00
power PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format 2012-05-18 20:44:59 +02:00
sched Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-05-23 17:42:39 -07:00
time Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-24 13:29:46 -07:00
trace Merge branch 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-24 11:39:34 -07:00
.gitignore
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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Makefile smp: Add generic smpboot facility 2012-04-26 12:06:09 +02:00
acct.c
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async.c
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audit.c
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audit.h
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audit_tree.c
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audit_watch.c
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auditfilter.c
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auditsc.c
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backtracetest.c
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bounds.c
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capability.c userns: Teach inode_capable to understand inodes whose uids map to other namespaces. 2012-05-15 14:59:24 -07:00
cgroup.c kernel: cgroup: push rcu read locking from css_is_ancestor() to callsite 2012-05-29 16:22:20 -07:00
cgroup_freezer.c
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compat.c new helper: sigsuspend() 2012-05-21 23:52:30 -04:00
configs.c
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cpu.c smp, idle: Allocate idle thread for each possible cpu during boot 2012-05-03 19:32:34 +02:00
cpu_pm.c
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cpuset.c Merge branch 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2012-05-22 17:40:19 -07:00
crash_dump.c
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cred.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-05-23 17:42:39 -07:00
delayacct.c
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dma.c
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elfcore.c
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exec_domain.c
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exit.c cred: use correct cred accessor with regards to rcu read lock 2012-05-17 16:50:06 -06:00
extable.c
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fork.c mm/fork: fix overflow in vma length when copying mmap on clone 2012-05-29 16:22:19 -07:00
freezer.c
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futex.c
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futex_compat.c
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groups.c userns: Convert in_group_p and in_egroup_p to use kgid_t 2012-05-03 03:29:33 -07:00
hrtimer.c
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hung_task.c hung task debugging: Inject NMI when hung and going to panic 2012-04-25 12:39:25 +02:00
irq_work.c
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itimer.c
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jump_label.c
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kallsyms.c
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kexec.c
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kfifo.c
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kmod.c
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kprobes.c
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ksysfs.c
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kthread.c
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latencytop.c
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lockdep.c
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lockdep_internals.h
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lockdep_proc.c
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lockdep_states.h
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module.c Guard check in module loader against integer overflow 2012-05-23 22:28:53 +09:30
mutex-debug.c
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mutex-debug.h
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mutex.c
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mutex.h
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notifier.c
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nsproxy.c
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padata.c
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panic.c
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params.c params: replace printk(KERN_<LVL>...) with pr_<lvl>(...) 2012-05-04 17:28:18 -07:00
pid.c mm: add a low limit to alloc_large_system_hash 2012-05-24 00:28:21 -04:00
pid_namespace.c
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posix-cpu-timers.c
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posix-timers.c
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printk.c printk() - isolate KERN_CONT users from ordinary complete lines 2012-05-14 12:36:45 -07:00
profile.c
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ptrace.c userns: Convert ptrace, kill, set_priority permission checks to work with kuids and kgids 2012-05-03 03:28:51 -07:00
range.c
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rcu.h
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rcupdate.c rcu: Make exit_rcu() more precise and consolidate 2012-05-02 14:48:27 -07:00
rcutiny.c
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rcutiny_plugin.h rcu: Make exit_rcu() more precise and consolidate 2012-05-02 14:48:27 -07:00
rcutorture.c rcu: Add rcutorture test for call_srcu() 2012-04-30 10:48:26 -07:00
rcutree.c Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu 2012-05-14 08:41:46 +02:00
rcutree.h Merge branches 'barrier.2012.05.09a', 'fixes.2012.04.26a', 'inline.2012.05.02b' and 'srcu.2012.05.07b' into HEAD 2012-05-11 10:14:21 -07:00
rcutree_plugin.h Merge branches 'barrier.2012.05.09a', 'fixes.2012.04.26a', 'inline.2012.05.02b' and 'srcu.2012.05.07b' into HEAD 2012-05-11 10:14:21 -07:00
rcutree_trace.c rcu: Make rcu_barrier() less disruptive 2012-05-09 14:27:54 -07:00
relay.c
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res_counter.c rescounters: add res_counter_uncharge_until() 2012-05-29 16:22:27 -07:00
resource.c
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rtmutex-debug.c
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rtmutex-debug.h
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rtmutex-tester.c
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rtmutex.c
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rtmutex.h
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rtmutex_common.h
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rwsem.c
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seccomp.c
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semaphore.c
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signal.c Merge branch 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-24 11:39:34 -07:00
smp.c smp: Implement kick_all_cpus_sync() 2012-05-08 12:35:06 +02:00
smpboot.c smp, idle: Allocate idle thread for each possible cpu during boot 2012-05-03 19:32:34 +02:00
smpboot.h smp: Fix idle_thread_init() inline stub 2012-05-04 12:52:25 +02:00
softirq.c
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spinlock.c
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srcu.c rcu: Implement per-domain single-threaded call_srcu() state machine 2012-04-30 10:48:25 -07:00
stacktrace.c
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stop_machine.c
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sys.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-05-23 17:42:39 -07:00
sys_ni.c
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sysctl.c
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sysctl_binary.c
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taskstats.c
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test_kprobes.c
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time.c
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timeconst.pl
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timer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-05-23 17:42:39 -07:00
tracepoint.c
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tsacct.c
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uid16.c userns: Convert setting and getting uid and gid system calls to use kuid and kgid 2012-05-03 03:28:41 -07:00
up.c
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user-return-notifier.c
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user.c userns: Silence silly gcc warning. 2012-05-19 15:44:40 -06:00
user_namespace.c userns: Store uid and gid values in struct cred with kuid_t and kgid_t types 2012-05-03 03:28:38 -07:00
utsname.c
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utsname_sysctl.c
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wait.c
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watchdog.c
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workqueue.c lockdep: fix oops in processing workqueue 2012-05-15 08:08:31 -07:00
workqueue_sched.h
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