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KOSAKI Motohiro d7911ef30c vmscan: implement swap token priority aging ... While testing for memcg aware swap token, I observed a swap token was often grabbed an intermittent running process (eg init, auditd) and they never release a token. Why? Some processes (eg init, auditd, audispd) wake up when a process exiting. And swap token can be get first page-in process when a process exiting makes no swap token owner. Thus such above intermittent running process often get a token. And currently, swap token priority is only decreased at page fault path. Then, if the process sleep immediately after to grab swap token, the swap token priority never be decreased. That's obviously undesirable. This patch implement very poor (and lightweight) priority aging. It only be affect to the above corner case and doesn't change swap tendency workload performance (eg multi process qsbench load) Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: 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>		14 years ago
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asoc.h	ASoC: soc-cache: Add trace event for snd_soc_cache_sync()	14 years ago
block.h	block: make unplug timer trace event correspond to the schedule() unplug	14 years ago
btrfs.h	tracing: Update btrfs's tracepoints to use u64 interface	14 years ago
compaction.h	mm: compaction: add trace events for memory compaction activity	14 years ago
ext4.h	ext4: add more tracepoints and use dev_t in the trace buffer	14 years ago
gfpflags.h	mm: tracing: add missing GFP flags to tracing	14 years ago
gpio.h	gpio: add trace events for setting direction and value	14 years ago
irq.h	rcu: move TREE_RCU from softirq to kthread	14 years ago
jbd2.h	ext4: add more tracepoints and use dev_t in the trace buffer	14 years ago
kmem.h	vmscan: tracing: add trace events for kswapd wakeup, sleeping and direct reclaim	15 years ago
kvm.h	KVM: cleanup async_pf tracepoints	14 years ago
lock.h	tracing: Factorize lock events in a lock class	15 years ago
mce.h	tracing: Fix event alignment: mce:mce_record	14 years ago
module.h	tracing: Fix event alignment: module:module_request	14 years ago
napi.h	napi: Convert trace_napi_poll to TRACE_EVENT	15 years ago
net.h	net: tracepoint of net_dev_xmit sees freed skb and causes panic	14 years ago
power.h	perf: Clean up power events by introducing new, more generic ones	14 years ago
regulator.h	regulator: Add basic trace facilities	14 years ago
sched.h	tracing/sched: Add sched_pi_setprio tracepoint	15 years ago
scsi.h	[SCSI] Include protection operation in SCSI command trace	14 years ago
signal.h	tracing: Fix null pointer deref with SEND_SIG_FORCED	15 years ago
skb.h	tracing: Fix event alignment: skb:kfree_skb	14 years ago
syscalls.h	tracing: Allow raw syscall trace events for non privileged users	14 years ago
timer.h	tracing: Fix timer tracing	15 years ago
vmscan.h	vmscan: implement swap token priority aging	14 years ago
workqueue.h	workqueue: add queue_work and activate_work trace points	15 years ago
writeback.h	writeback: trace wakeup event for background writeback	14 years ago