linux/include/trace/events
Mel Gorman 41ac1999c3 mm: vmscan: do not stall on writeback during memory compaction
This patch stops reclaim/compaction entering sync reclaim as this was
only intended for lumpy reclaim and an oversight.  Page migration has
its own logic for stalling on writeback pages if necessary and memory
compaction is already using it.

Waiting on page writeback is bad for a number of reasons but the primary
one is that waiting on writeback to a slow device like USB can take a
considerable length of time.  Page reclaim instead uses
wait_iff_congested() to throttle if too many dirty pages are being
scanned.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ying Han <yinghan@google.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:19 -07:00
..
9p.h net/9p: Convert net/9p protocol dumps to tracepoints 2011-10-24 11:13:12 -05:00
asoc.h ASoC: dapm: Fix x86_64 build warning. 2012-04-23 13:15:35 +01:00
block.h blktrace: add FLUSH/FUA support 2011-08-11 10:36:05 +02:00
btrfs.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
compaction.h mm: compaction: add trace events for memory compaction activity 2011-01-13 17:32:33 -08:00
ext3.h userns: Convert ext3 to use kuid/kgid where appropriate 2012-05-15 14:59:27 -07:00
ext4.h userns: Convert ext4 to user kuid/kgid where appropriate 2012-05-15 14:59:27 -07:00
gfpflags.h mm: tracing: add missing GFP flags to tracing 2011-05-11 18:50:45 -07:00
gpio.h gpio: add trace events for setting direction and value 2011-05-20 00:40:19 -06:00
irq.h rcu: Use softirq to address performance regression 2011-06-14 15:25:39 -07:00
jbd2.h jbd2: issue cache flush after checkpointing even with internal journal 2012-03-13 22:22:54 -04:00
jbd.h jbd: Write journal superblock with WRITE_FUA after checkpointing 2012-05-15 23:34:37 +02:00
kmem.h mm-tracepoint: rename page-free events 2012-01-10 16:30:41 -08:00
kvm.h KVM: cleanup async_pf tracepoints 2011-01-12 11:28:57 +02:00
lock.h tracing: Factorize lock events in a lock class 2010-05-09 13:45:35 +02:00
mce.h tracing: Fix event alignment: mce:mce_record 2011-03-10 10:34:28 -05:00
module.h include: replace linux/module.h with "struct module" wherever possible 2011-10-31 19:32:32 -04:00
napi.h napi: Convert trace_napi_poll to TRACE_EVENT 2010-09-07 17:51:01 +02:00
net.h net: tracepoint of net_dev_xmit sees freed skb and causes panic 2011-06-02 14:06:31 -07:00
oom.h tracepoint: add tracepoints for debugging oom_score_adj 2012-01-10 16:30:44 -08:00
power.h PM / Sleep: Add wakeup_source_activate and wakeup_source_deactivate tracepoints 2012-05-01 21:25:25 +02:00
printk.h printk/tracing: Add console output tracing 2012-02-13 13:46:05 -05:00
rcu.h rcu: Make RCU_FAST_NO_HZ handle timer migration 2012-05-09 14:26:56 -07:00
regmap.h The following text was taken from the original review request: 2012-03-24 10:41:37 -07:00
regulator.h regulator: Add basic trace facilities 2011-01-12 14:33:00 +00:00
rpm.h device.h: audit and cleanup users in main include dir 2012-03-16 10:38:24 -04:00
sched.h tracing, sched, vfs: Fix 'old_pid' usage in trace_sched_process_exec() 2012-03-31 11:53:22 +02:00
scsi.h [SCSI] Include protection operation in SCSI command trace 2011-03-14 18:36:02 -05:00
signal.h tracing: let trace_signal_generate() report more info, kill overflow_fail/lose_info 2012-01-13 18:48:50 +01:00
skb.h tracing: Fix event alignment: skb:kfree_skb 2011-03-10 10:34:31 -05:00
sock.h core: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
sunrpc.h SUNRPC: Adding status trace points 2012-02-06 10:37:53 -05:00
syscalls.h tracing: Allow raw syscall trace events for non privileged users 2010-11-18 14:37:43 +01:00
task.h tracepoint: add tracepoints for debugging oom_score_adj 2012-01-10 16:30:44 -08:00
timer.h tracing: Fix timer tracing 2010-08-19 13:00:41 +02:00
udp.h udp: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
vmscan.h mm: vmscan: do not stall on writeback during memory compaction 2012-05-29 16:22:19 -07:00
workqueue.h workqueue: Fix workqueue_execute_end() comment 2012-04-10 10:49:47 +02:00
writeback.h writeback: Move requeueing when I_SYNC set to writeback_sb_inodes() 2012-05-06 13:43:38 +08:00
xen.h xen/tracing: fix compile errors when tracing is disabled. 2011-07-25 15:51:02 -07:00