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e1e267c792
linux/include/trace/events
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Peter Xu e1e267c792 khugepaged: skip collapse if uffd-wp detected 
Don't collapse the huge PMD if there is any userfault write protected
small PTEs.  The problem is that the write protection is in small page
granularity and there's no way to keep all these write protection
information if the small pages are going to be merged into a huge PMD.

The same thing needs to be considered for swap entries and migration
entries.  So do the check as well disregarding khugepaged_max_ptes_swap.

Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20200220163112.11409-12-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
..
9p.h
afs.h afs: Fix some tracing details 2020-03-13 23:04:34 +00:00
alarmtimer.h
asoc.h
bcache.h bcache: print written and keys in trace_bcache_btree_write 2020-01-23 11:40:02 -07:00
block.h
bpf_test_run.h selftests: bpf: test writable buffers in raw tps 2019-04-26 19:04:19 -07:00
bridge.h net: bridge: fdb: br_fdb_update can take flags directly 2019-11-01 10:32:43 -07:00
btrfs.h btrfs: switch to per-transaction pinned extents 2020-03-23 17:01:38 +01:00
cachefiles.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
cgroup.h cgroup: use cgrp->kn->id as the cgroup ID 2019-11-12 08:18:04 -08:00
clk.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
cma.h
compaction.h mm, compaction: some tracepoints should be defined only when CONFIG_COMPACTION is set 2019-05-14 09:47:46 -07:00
context_tracking.h
cpuhp.h treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively 2019-04-09 14:19:06 +02:00
devfreq.h trace: events: add devfreq trace event file 2019-04-16 09:29:18 +09:00
devlink.h devlink: Add support for direct reporter health state update 2019-03-04 11:00:43 -08:00
dma_fence.h tracing: Fix header include guards in trace event headers 2019-07-30 21:49:06 -04:00
erofs.h erofs: use erofs_inode naming 2019-09-05 20:10:07 +02:00
ext4.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
f2fs.h f2fs: show the CP_PAUSE reason in checkpoint traces 2020-01-17 16:48:43 -08:00
fib6.h ipv6: Add fib6_type and fib6_flags to fib6_result 2019-04-17 23:11:30 -07:00
fib.h net: Replace nhc_has_gw with nhc_gw_family 2019-04-08 15:22:40 -07:00
filelock.h locks: revise generic_add_lease tracepoint 2019-07-22 06:54:41 -04:00
filemap.h ftrace: Rework event_create_dir() 2019-11-27 07:44:25 +01:00
fs_dax.h
fscache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
fsi_master_aspeed.h fsi: aspeed: Add trace points 2019-11-08 11:28:20 +01:00
fsi_master_ast_cf.h fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire 2018-07-23 15:22:52 +10:00
fsi_master_gpio.h fsi: master-gpio: Add more tracepoints 2018-07-12 12:02:31 +10:00
fsi.h trace: fsi: Print transfer size unsigned 2019-11-08 11:23:37 +01:00
gpio.h tracing: stop making gpio tracing configurable 2019-04-08 15:11:48 +02:00
gpu_mem.h gpu/trace: add a gpu total memory usage tracepoint 2020-03-03 17:52:41 -05:00
host1x.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
hswadsp.h
huge_memory.h khugepaged: skip collapse if uffd-wp detected 2020-04-07 10:43:39 -07:00
hwmon.h hwmon: (core) Add trace events to _attr_show/store functions 2018-10-11 20:07:35 -07:00
i2c.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
ib_mad.h IB/MAD: Add SMP details to MAD tracing 2019-03-27 15:52:01 -03:00
ib_umad.h IB/UMAD: Add umad trace points 2019-03-27 15:52:01 -03:00
initcall.h
intel_iommu.h iommu/vt-d: trace: Extend map_sg trace event 2020-01-07 14:05:57 +01:00
intel_ish.h
intel-sst.h
io_uring.h io_uring: use poll driven retry for files that support it 2020-03-02 14:06:38 -07:00
iocost.h blkcg: blk-iocost: predeclare used structs 2019-08-29 09:43:34 -06:00
iommu.h
ipi.h
irq_matrix.h
irq.h
iscsi.h scsi: iscsi: Capture iscsi debug messages using tracepoints 2018-12-20 20:03:55 -05:00
jbd2.h jbd2: Provide trace event for handle restarts 2019-11-05 16:00:49 -05:00
kmem.h mm, tracing: print symbol name for kmem_alloc_node call_site events 2020-01-31 10:30:38 -08:00
kvm.h
kyber.h kyber: fix wrong strlcpy() size in trace_kyber_latency() 2018-11-12 08:28:37 -07:00
libata.h
lock.h
mce.h
mdio.h
migrate.h mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration 2018-10-02 11:31:14 +02:00
mlxsw.h mlxsw: spectrum_acl: Rename rehash_dis trace 2019-03-31 11:01:23 -07:00
mmap.h mm: mmap: add trace point of vm_unmapped_area 2020-04-02 09:35:30 -07:00
mmc.h
mmflags.h mm/vma: add missing VMA flag readable name for VM_SYNC 2020-04-07 10:43:37 -07:00
module.h
napi.h tracing: Fix header include guards in trace event headers 2019-07-30 21:49:06 -04:00
nbd.h nbd: add tracepoints for send/receive timing 2019-04-26 19:04:19 -07:00
neigh.h neighbor: Add tracepoint to __neigh_create 2019-05-22 17:50:24 -07:00
net_probe_common.h
net.h net: add a generic tracepoint for TX queue timeout 2019-05-04 00:41:41 -04:00
nilfs2.h
nmi.h
objagg.h lib: introduce initial implementation of object aggregation manager 2018-11-15 14:43:43 -08:00
oom.h
page_isolation.h
page_pool.h page_pool: Add API to update numa node 2019-11-20 11:47:36 -08:00
page_ref.h
pagemap.h
percpu.h
power_cpu_migrate.h
power.h PM: QoS: Simplify definitions of CPU latency QoS trace events 2020-02-13 11:26:39 +01:00
preemptirq.h tracing: Change offset type to s32 in preempt/irq tracepoints 2020-01-03 11:34:37 -05:00
printk.h
pwc.h media: usb: pwc: Introduce TRACE_EVENTs for pwc_isoc_handler() 2019-01-16 11:15:11 -05:00
pwm.h pwm: Implement tracing for .get_state() and .apply_state() 2020-01-20 12:28:37 +01:00
qdisc.h tracing: Fix header include guards in trace event headers 2019-07-30 21:49:06 -04:00
qla.h scsi: qla2xxx: add ring buffer for tracing debug logs 2020-03-11 23:07:57 -04:00
random.h random: only read from /dev/random after its pool has received 128 bits 2019-04-17 10:30:21 -04:00
rcu.h Merge branches 'doc.2020.02.27a', 'fixes.2020.03.21a', 'kfree_rcu.2020.02.20a', 'locktorture.2020.02.20a', 'ovld.2020.02.20a', 'rcu-tasks.2020.02.20a', 'srcu.2020.02.20a' and 'torture.2020.02.20a' into HEAD 2020-03-21 17:15:11 -07:00
rdma_core.h RDMA/core: Add trace points to follow MR allocation 2020-01-07 16:10:53 -04:00
rdma.h
regulator.h
rpcgss.h SUNRPC: Clean up: Replace dprintk and BUG_ON call sites in svcauth_gss.c 2020-03-16 12:04:31 -04:00
rpcrdma.h svcrdma: Avoid DMA mapping small RPC Replies 2020-03-16 12:04:33 -04:00
rpm.h PM-runtime: add tracepoints for usage_count changes 2020-01-13 12:28:29 +01:00
rseq.h rseq: Introduce restartable sequences system call 2018-06-06 11:58:31 +02:00
rtc.h
rxrpc.h rxrpc: Fix trace-after-put looking at the put call record 2019-10-07 11:05:05 +01:00
sched.h sched/pelt: Add support to track thermal pressure 2020-03-06 12:57:17 +01:00
scmi.h include: trace: Add SCMI header with trace events 2019-12-30 12:34:29 +00:00
scsi.h
sctp.h sctp: move trace_sctp_probe_path into sctp_outq_sack 2019-12-26 13:06:45 -08:00
signal.h signal: Distinguish between kernel_siginfo and siginfo 2018-10-03 16:47:43 +02:00
siox.h
skb.h
smbus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
sock.h tcp: Define IPPROTO_MPTCP 2020-01-09 18:41:41 -08:00
spi.h spi/trace: Cap buffer contents at 64 bytes 2019-05-02 10:37:52 +09:00
spmi.h
sunrpc.h sunrpc: Add tracing for cache events 2020-03-16 12:04:34 -04:00
sunvnet.h
swiotlb.h
syscalls.h syscalls: Remove start and number from syscall_get_arguments() args 2019-04-05 09:26:43 -04:00
target.h scsi: target: core: add task tag to trace events 2020-03-26 21:56:04 -04:00
task.h
tcp.h tcp: remove redundant new line from tcp_event_sk_skb 2019-11-09 19:41:50 -08:00
tegra_apb_dma.h tracing: Fix header include guards in trace event headers 2019-07-30 21:49:06 -04:00
thermal_power_allocator.h
thermal.h
thp.h
timer.h y2038: syscall implementation cleanups 2019-12-01 14:00:59 -08:00
tlb.h
udp.h
ufs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
v4l2.h media: v4l2: abstract timeval handling in v4l2_buffer 2020-01-03 15:43:35 +01:00
vb2.h
vmscan.h mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
vsock_virtio_transport_common.h
wbt.h block: Fix writeback throttling W=1 compiler warnings 2019-10-07 08:31:59 -06:00
workqueue.h workqueue: remove workqueue_work event class 2020-01-15 08:02:59 -08:00
writeback.h memcg: fix a crash in wb_workfn when a device disappears 2020-01-31 10:30:36 -08:00
xdp.h devmap: Adjust tracepoint for map-less queue flush 2020-01-16 20:03:34 -08:00
xen.h tracing: xen: Ordered comparison of function pointers 2020-01-14 15:55:57 -05:00