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linux-stable/include/trace/events
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Mel Gorman d818fca1ca mm/vmscan: throttle reclaim and compaction when too may pages are isolated 
Page reclaim throttles on congestion if too many parallel reclaim
instances have isolated too many pages.  This makes no sense, excessive
parallelisation has nothing to do with writeback or congestion.

This patch creates an additional workqueue to sleep on when too many
pages are isolated.  The throttled tasks are woken when the number of
isolated pages is reduced or a timeout occurs.  There may be some false
positive wakeups for GFP_NOIO/GFP_NOFS callers but the tasks will
throttle again if necessary.

[shy828301@gmail.com: Wake up from compaction context]
[vbabka@suse.cz: Account number of throttled tasks only for writeback]

Link: https://lkml.kernel.org/r/20211022144651.19914-3-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: "Darrick J . Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Rik van Riel <riel@surriel.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-11-06 13:30:40 -07:00
..
9p.h
afs.h afs: Try to avoid taking RCU read lock when checking vnode validity 2021-09-13 09:10:39 +01:00
alarmtimer.h
asoc.h ASoC: soc-core: tidyup jack.h 2020-11-30 12:54:01 +00:00
avc.h selinux: add basic filtering for audit trace events 2020-08-21 17:07:29 -04:00
bcache.h block: remove superfluous param in blk_fill_rwbs() 2021-02-22 06:37:41 -07:00
block.h blktrace: fix blk_rq_merge documentation 2021-02-22 06:37:41 -07:00
bpf_test_run.h
bridge.h
btrfs.h btrfs: use delalloc_bytes to determine flush amount for shrink_delalloc 2021-08-23 13:19:07 +02:00
cachefiles.h cachefiles: Fix oops with cachefiles_cull() due to NULL object 2021-10-05 11:22:06 +01:00
cgroup.h
clk.h clk: Trace clk_set_rate() "range" functions 2020-12-17 01:54:31 -08:00
cma.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
compaction.h mm/page_alloc: integrate classzone_idx and high_zoneidx 2020-06-03 20:09:44 -07:00
context_tracking.h
cpuhp.h
damon.h mm/damon: add a tracepoint 2021-09-08 11:50:24 -07:00
devfreq.h PM / devfreq: Add tracepoint for frequency changes 2020-10-26 10:52:37 +09:00
devlink.h devlink: Add a tracepoint for trap reports 2020-09-30 18:01:26 -07:00
dma_fence.h treewide: Add missing semicolons to __assign_str uses 2021-06-30 09:19:14 -04:00
erofs.h erofs: fix up erofs_lookup tracepoint 2021-09-23 23:21:34 +08:00
error_report.h tracing: add error_report_end trace point 2021-02-26 09:41:02 -08:00
ext4.h ext4: delete some unused tracepoint definitions 2021-04-02 11:38:06 -04:00
f2fs.h f2fs: introduce periodic iostat io latency traces 2021-08-23 10:25:51 -07:00
fib.h
fib6.h
filelock.h locks: Remove extra "0x" in tracepoint format specifier 2020-09-01 18:09:34 -04:00
filemap.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
fs_dax.h
fscache.h fscache: Use refcount_t for the cookie refcount instead of atomic_t 2021-08-27 13:34:03 +01:00
fsi.h
fsi_master_aspeed.h
fsi_master_ast_cf.h
fsi_master_gpio.h
gpio.h
gpu_mem.h gpu/trace: Minor comment updates for gpu_mem_total tracepoint 2020-05-07 13:32:57 -04:00
host1x.h
huge_memory.h khugepaged: introduce 'max_ptes_shared' tunable 2020-06-03 20:09:46 -07:00
hwmon.h
i2c.h
ib_mad.h
ib_umad.h
initcall.h
intel-sst.h
intel_iommu.h iommu/vt-d: Add prq_report trace event 2021-06-10 09:06:13 +02:00
intel_ish.h
io_uring.h io_uring: io_uring_complete() trace should take an integer 2021-09-03 16:59:06 -06:00
iocost.h blk-iocost: Add iocg idle state tracepoint 2020-12-17 07:55:44 -07:00
iommu.h
ipi.h
irq.h
irq_matrix.h
iscsi.h
jbd2.h jbd2,ext4: add a shrinker to release checkpointed buffers 2021-06-24 10:54:49 -04:00
kmem.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
kvm.h KVM: x86/mmu: Drop trace_kvm_age_page() tracepoint 2021-04-17 08:30:56 -04:00
kyber.h kyber: avoid q->disk dereferences in trace points 2021-10-15 21:02:57 -06:00
libata.h
lock.h
mce.h
mdio.h
migrate.h mm/migrate: demote pages during reclaim 2021-09-03 09:58:16 -07:00
mlxsw.h
mmap.h mm: mmap: add trace point of vm_unmapped_area 2020-04-02 09:35:30 -07:00
mmap_lock.h mm: mmap_lock: use DECLARE_EVENT_CLASS and DEFINE_EVENT_FN 2021-11-06 13:30:36 -07:00
mmc.h
mmflags.h Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
module.h
mptcp.h mptcp: dump csum fields in mptcp_dump_mpext 2021-06-18 11:40:11 -07:00
napi.h
nbd.h
neigh.h
net.h net: use %px to print skb address in trace_netif_receive_skb 2021-07-15 10:28:48 -07:00
net_probe_common.h
netfs.h netfs: Move cookie debug ID to struct netfs_cache_resources 2021-08-25 15:20:25 +01:00
netlink.h netlink: add tracepoint at NL_SET_ERR_MSG 2021-02-04 18:05:59 -08:00
nilfs2.h
nmi.h
objagg.h
oom.h
osnoise.h tracing: Fix spelling in osnoise tracer "interferences" -> "interference" 2021-06-28 14:12:27 -04:00
page_isolation.h
page_pool.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
page_ref.h mm: introduce PAGEFLAGS_MASK to replace ((1UL << NR_PAGEFLAGS) - 1) 2021-09-08 11:50:24 -07:00
pagemap.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
percpu.h
power.h PM: QoS: Simplify definitions of CPU latency QoS trace events 2020-02-13 11:26:39 +01:00
power_cpu_migrate.h
preemptirq.h
printk.h
pwc.h
pwm.h
qdisc.h qdisc: add new field for qdisc_enqueue tracepoint 2021-07-27 14:16:38 +01:00
qla.h scsi: qla2xxx: Suppress two recently introduced compiler warnings 2020-05-19 21:43:01 -04:00
qrtr.h net: qrtr: Add tracepoint support 2020-04-22 12:55:54 -07:00
random.h random: remove dead code left over from blocking pool 2021-04-02 18:28:12 +11:00
rcu.h rcu/nocb: Unify timers 2021-05-12 12:10:23 -07:00
rdma.h RDMA/core: Move the rdma_show_ib_cm_event() macro 2020-08-24 16:01:47 -03:00
rdma_core.h
regulator.h regulator: core: Add regulator bypass trace points 2020-05-29 17:17:02 +01:00
rpcgss.h treewide: Add missing semicolons to __assign_str uses 2021-06-30 09:19:14 -04:00
rpcrdma.h xprtrdma: Add an xprtrdma_post_send_err tracepoint 2021-08-09 16:42:18 -04:00
rpm.h
rseq.h
rtc.h
rxrpc.h rxrpc: Fix a missing NULL-pointer check in a trace 2020-09-14 16:18:59 +01:00
sched.h sched/tracing: Remove the redundant 'success' in the sched tracepoint 2021-06-10 11:16:20 -04:00
scmi.h firmware: arm_scmi: Use signed integer to report transfer status 2020-06-30 14:07:08 +01:00
scsi.h scsi: core: Kill message byte 2021-05-31 22:48:24 -04:00
sctp.h
signal.h
siox.h
skb.h
smbus.h
sock.h net: sock: add trace for socket errors 2021-06-29 11:28:21 -07:00
spi.h spi: Enable tracing of the SPI setup CS selection 2021-05-26 21:22:13 +01:00
spmi.h
sunrpc.h NFS Client Updates for Linux 5.15 2021-09-04 10:25:26 -07:00
sunvnet.h
swiotlb.h
syscalls.h
target.h scsi: target: core: Add CONTROL field for trace events 2020-10-02 18:36:19 -04:00
task.h
tcp.h tcp: add tracepoint for checksum errors 2021-05-14 15:26:03 -07:00
tegra_apb_dma.h
thermal.h thermal: devfreq_cooling: change tracing function and arguments 2020-12-11 14:10:44 +01:00
thermal_power_allocator.h
thp.h
timer.h tracing: Fix various typos in comments 2021-03-23 14:08:18 -04:00
tlb.h
udp.h
ufs.h scsi: ufs: core: Enable power management for wlun 2021-05-10 22:28:20 -04:00
v4l2.h
vb2.h
vmscan.h mm/vmscan: throttle reclaim and compaction when too may pages are isolated 2021-11-06 13:30:40 -07:00
vsock_virtio_transport_common.h virtio/vsock: update trace event for SEQPACKET 2021-06-11 13:32:47 -07:00
wbt.h bdi: use bdi_dev_name() to get device name 2020-05-09 16:07:39 -06:00
workqueue.h workqueue/tracing: Copy workqueue name to buffer in trace event 2021-03-18 12:57:37 -04:00
writeback.h mm/vmscan: throttle reclaim until some writeback completes if congested 2021-11-06 13:30:40 -07:00
xdp.h xdp: Extend xdp_redirect_map with broadcast support 2021-05-26 09:46:16 +02:00
xen.h x86/mm/tlb: Flush remote and local TLBs concurrently 2021-03-06 12:59:10 +01:00