Commit Graph

1375 Commits

Author SHA1 Message Date
Tao Huang
afd240d168 Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (510 commits)
  Linux 4.4.103
  Revert "sctp: do not peel off an assoc from one netns to another one"
  xen: xenbus driver must not accept invalid transaction ids
  s390/kbuild: enable modversions for symbols exported from asm
  ASoC: wm_adsp: Don't overrun firmware file buffer when reading region data
  btrfs: return the actual error value from from btrfs_uuid_tree_iterate
  ASoC: rsnd: don't double free kctrl
  netfilter: nf_tables: fix oob access
  netfilter: nft_queue: use raw_smp_processor_id()
  spi: SPI_FSL_DSPI should depend on HAS_DMA
  staging: iio: cdc: fix improper return value
  iio: light: fix improper return value
  mac80211: Suppress NEW_PEER_CANDIDATE event if no room
  mac80211: Remove invalid flag operations in mesh TSF synchronization
  drm: Apply range restriction after color adjustment when allocation
  ALSA: hda - Apply ALC269_FIXUP_NO_SHUTUP on HDA_FIXUP_ACT_PROBE
  ath10k: set CTS protection VDEV param only if VDEV is up
  ath10k: fix potential memory leak in ath10k_wmi_tlv_op_pull_fw_stats()
  ath10k: ignore configuring the incorrect board_id
  ath10k: fix incorrect txpower set by P2P_DEVICE interface
  ...

Conflicts:
	drivers/media/v4l2-core/v4l2-ctrls.c
	kernel/sched/fair.c

Change-Id: I48152b2a0ab1f9f07e1da7823119b94f9b9e1751
2017-12-01 11:04:13 +08:00
Alex Shi
0f646885c3 Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2017-12-01 01:02:04 +08:00
Trond Myklebust
36d2f19430 SUNRPC: Fix tracepoint storage issues with svc_recv and svc_rqst_status
commit e9d4bf219c upstream.

There is no guarantee that either the request or the svc_xprt exist
by the time we get round to printing the trace message.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-30 08:37:23 +00:00
Vikram Mulukutla
907c5489f9 sched: walt: Correct WALT window size initialization
It is preferable that WALT window rollover occurs just
before a tick, since the tick is an opportune moment
to record a complete window's statistics, as well as report
those stats to the cpu frequency governor. When CONFIG_HZ
results in a TICK_NSEC that isn't a integral number, this
requirement may be violated. Account for this by reducing
the WALT window size to the nearest multiple of TICK_NSEC.

Commit d368c6faa1 ("sched: walt: fix window misalignment
when HZ=300") attempted to do this but WALT isn't using
MIN_SCHED_RAVG_WINDOW as the window size and the patch was
doing nothing.

Also, change the type of 'walt_disabled' to bool and warn
if an invalid window size causes WALT to be disabled.

Change-Id: Ie3dcfc21a3df4408254ca1165a355bbe391ed5c7
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-11-20 21:15:59 +05:30
Ke Wang
6f8b7ac222 trace: sched: Fix util_avg_walt in sched_load_avg_cpu trace
cumulative_runnable_avg was introduced in commit ee4cebd75e ("sched:
EAS/WALT: use cr_avg instead of prev_runnable_sum") in cpu_util() for
task placement, which is used to replace prev_runnable_sum.

Fix util_avg_walt in sched_load_avg_cpu trace, which use prev_runnable_sum
for cpu_util().

Moreover, fix potential overflow due to cumulative_runnable_avg is in u64.

Change-Id: I1220477bf2ff32a6e34a34b6280b15a8178203a8
Signed-off-by: Ke Wang <ke.wang@spreadtrum.com>
2017-11-20 21:15:59 +05:30
Vikram Mulukutla
1765eacee8 sched: walt: Leverage existing helper APIs to apply invariance
There's no need for a separate hierarchy of notifiers, APIs
and variables in walt.c for the purpose of applying frequency
and IPC invariance. Let's just use capacity_curr_of and get
rid of a lot of the infrastructure relating to capacity,
load_scale_factor etc.

Change-Id: Ia220e2c896373fa535db05bff60f9aa33aefc978
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-11-20 21:15:59 +05:30
Laurent Pinchart
98781fa62b BACKPORT: [media] v4l: Add metadata buffer type and format
The metadata buffer type is used to transfer metadata between userspace
and kernelspace through a V4L2 buffers queue. It comes with a new
metadata capture capability and format description.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed left-over 'experimental' note]
[hans.verkuil@cisco.com: add newline after _v4l2-meta-format label]

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit fb9ffa6a7f)

 Conflicts:
	Documentation/media/uapi/v4l/buffer.rst
	Documentation/media/uapi/v4l/devices.rst
	Documentation/media/uapi/v4l/vidioc-querycap.rst
	Documentation/media/videodev2.h.rst.exceptions
	drivers/media/v4l2-core/v4l2-dev.c
	drivers/media/v4l2-core/videobuf2-v4l2.c
	include/media/v4l2-ioctl.h

Deleted the documentation, as 4.4 is before the conversion to rst.

BUG=b:66317170
TEST=compile

Change-Id: Id43757c0a0b1f34e10d17e5345f89ded25503d13
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/676767
Reviewed-by: Ricky Liang <jcliang@chromium.org>
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
2017-11-03 10:03:07 +08:00
Tao Huang
6bedca442a Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (546 commits)
  Linux 4.4.93
  x86/alternatives: Fix alt_max_short macro to really be a max()
  USB: serial: console: fix use-after-free after failed setup
  USB: serial: qcserial: add Dell DW5818, DW5819
  USB: serial: option: add support for TP-Link LTE module
  USB: serial: cp210x: add support for ELV TFD500
  USB: serial: ftdi_sio: add id for Cypress WICED dev board
  fix unbalanced page refcounting in bio_map_user_iov
  direct-io: Prevent NULL pointer access in submit_page_section
  usb: gadget: composite: Fix use-after-free in usb_composite_overwrite_options
  ALSA: line6: Fix leftover URB at error-path during probe
  ALSA: caiaq: Fix stray URB at probe error path
  ALSA: seq: Fix copy_from_user() call inside lock
  ALSA: seq: Fix use-after-free at creating a port
  ALSA: usb-audio: Kill stray URB at exiting
  iommu/amd: Finish TLB flush in amd_iommu_unmap()
  usb: renesas_usbhs: Fix DMAC sequence for receiving zero-length packet
  KVM: nVMX: fix guest CR4 loading when emulating L2 to L1 exit
  crypto: shash - Fix zero-length shash ahash digest crash
  HID: usbhid: fix out-of-bounds bug
  ...

Conflicts:
	drivers/cpufreq/cpufreq-dt.c
	drivers/usb/dwc3/gadget.c

Change-Id: I1a24ad0bba307b56b5ddf1fd7c4832ffb73ad12f
2017-11-02 17:00:07 +08:00
Joel Fernandes
43227089a4 FROMLIST: tracing: Add support for preempt and irq enable/disable events
Preempt and irq trace events can be used for tracing the start and
end of an atomic section which can be used by a trace viewer like
systrace to graphically view the start and end of an atomic section and
correlate them with latencies and scheduling issues.

This also serves as a prelude to using synthetic events or probes to
rewrite the preempt and irqsoff tracers, along with numerous benefits of
using trace events features for these events.

Change-Id: I718d40f7c3c48579adf9d7121b21495a669c89bd
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zilstra <peterz@infradead.org>
Cc: kernel-team@android.com
Link: https://patchwork.kernel.org/patch/9988157/
Signed-off-by: Joel Fernandes <joelaf@google.com>
2017-10-15 23:53:55 +05:30
Jaegeuk Kim
b0fd6697e4 f2fs: catch up to v4.14-rc1
This is cherry-picked from upstrea-f2fs-stable-linux-4.4.y.

Changes include:

commit c7fd9e2b4a ("f2fs: hurry up to issue discard after io interruption")
commit 603dde3965 ("f2fs: fix to show correct discard_granularity in sysfs")
...
commit 565f0225f9 ("f2fs: factor out discard command info into discard_cmd_control")
commit c4cc29d19e ("f2fs: remove batched discard in f2fs_trim_fs")

Change-Id: Icd8a85ac0c19a8aa25cd2591a12b4e9b85bdf1c5
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
2017-10-15 23:28:32 +05:30
Jaegeuk Kim
1c2238bfa9 f2fs: add submit_bio tracepoint
commit 554b5125f5 upstream.

This patch adds final submit_bio() tracepoint.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-10-15 23:28:32 +05:30
Jaegeuk Kim
cfbece0226 f2fs: resolve op and op_flags confilcts
commit 70fd76140a upstream.

This patch backported ("block,fs: use REQ_* flags directly")

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-10-15 23:28:32 +05:30
Damien Le Moal
12974f3c15 f2fs: Trace reset zone events
commit 126606c7a9 upstream.

Similarly to the regular discard, trace zone reset events.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-10-15 23:28:17 +05:30
Jaegeuk Kim
7d5c08fd91 f2fs: backport from (4c1fad64 - Merge tag 'for-f2fs-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs)
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-10-15 23:28:17 +05:30
Tao Huang
dc6b994588 Merge tag 'lsk-v4.4-17.08-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
LSK 17.08 v4.4-android

* tag 'lsk-v4.4-17.08-android': (451 commits)
  Linux 4.4.83
  pinctrl: samsung: Remove bogus irq_[un]mask from resource management
  pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver
  pnfs/blocklayout: require 64-bit sector_t
  iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits
  usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume
  usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter
  usb: core: unlink urbs from the tail of the endpoint's urb_list
  USB: Check for dropped connection before switching to full speed
  uag: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069
  iio: light: tsl2563: use correct event code
  iio: accel: bmc150: Always restore device to normal mode after suspend-resume
  staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
  USB: hcd: Mark secondary HCD as dead if the primary one died
  usb: musb: fix tx fifo flush handling again
  USB: serial: pl2303: add new ATEN device id
  USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
  USB: serial: option: add D-Link DWM-222 device ID
  nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
  fuse: initialize the flock flag in fuse_file on allocation
  ...
2017-09-01 18:56:00 +08:00
Patrick Bellasi
1fa199bc0f events: add tracepoint for find_best_target
Change-Id: I4c245ffacb207d7ea826c5763a426efe5399e0a2
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2017-08-11 19:31:04 +05:30
Huang, Tao
793e6e3001 Merge tag 'lsk-v4.4-17.06-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
LSK 17.06 v4.4-android

* tag 'lsk-v4.4-17.06-android': (134 commits)
  ANDROID: sdcardfs: remove dead function open_flags_to_access_mode()
  ANDROID: android-base.cfg: split out arm64-specific configs
  usb: gadget: f_fs: Fix possibe deadlock
  ANDROID: uid_sys_stats: check previous uid_entry before call find_or_register_uid
  ANDROID: sdcardfs: d_splice_alias can return error values
  android: base-cfg: disable CONFIG_NFS_FS and CONFIG_NFSD
  schedstats/eas: guard properly to avoid breaking non-smp schedstats users
  BACKPORT: f2fs: sanity check size of nat and sit cache
  FROMLIST: f2fs: sanity check checkpoint segno and blkoff
  sched/tune: don't use schedtune before it is ready
  sched/fair: use SCHED_CAPACITY_SCALE for energy normalization
  sched/{fair,tune}: use reciprocal_value to compute boost margin
  sched/tune: Initialize raw_spin_lock in boosted_groups
  sched/tune: report when SchedTune has not been initialized
  sched/tune: fix sched_energy_diff tracepoint
  sched/tune: increase group count to 5
  cpufreq/schedutil: use boosted_cpu_util for PELT to match WALT
  sched/fair: Fix sched_group_energy() to support per-cpu capacity states
  sched/fair: discount task contribution to find CPU with lowest utilization
  sched/fair: ensure utilization signals are synchronized before use
  ...
2017-07-12 19:35:02 +08:00
Chris Redpath
f25df5eba6 trace:sched: Make util_avg in load_avg trace reflect PELT/WALT as used
With the ability to choose between WALT and PELT for utilisation tracking
we can have the situation where we're using WALT to make all the
decisions and reporting PELT figures in the sched_load_avg_(cpu|task)
trace points. This is not too much of an issue, but when analysing trace
it is nice to see numbers representing what the scheduler is using rather
than needing to add in additional sched_walt_* traces to figure it out.

Add reporting for both types, and make the util_avg member reflect what
will be seen from cpu or task_util functions in the scheduler.

Change-Id: I2abbd2c5fa70822096d0f3372b4c12b1c6af1590
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
2017-06-21 16:37:44 +05:30
Juri Lelli
2d0ab5231c trace/sched: add rq utilization signal for WALT
It is useful to be able to check current capacity against rq utilization
signal generated by WALT (to check how a cpufreq governor is behaving
for example).

Add rq utilization signal (same scale as capacity) to the walt_update_
task_ravg tracepoint.

Change-Id: I9aae3884a741d23ac494bef80d2303f107f135ce
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
2017-06-21 16:37:20 +05:30
Huang, Tao
986d4e4637 Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (521 commits)
  Linux 4.4.66
  ftrace/x86: Fix triple fault with graph tracing and suspend-to-ram
  ARCv2: save r30 on kernel entry as gcc uses it for code-gen
  nfsd: check for oversized NFSv2/v3 arguments
  Input: i8042 - add Clevo P650RS to the i8042 reset list
  p9_client_readdir() fix
  MIPS: Avoid BUG warning in arch_check_elf
  MIPS: KGDB: Use kernel context for sleeping threads
  ALSA: seq: Don't break snd_use_lock_sync() loop by timeout
  ALSA: firewire-lib: fix inappropriate assignment between signed/unsigned type
  ipv6: check raw payload size correctly in ioctl
  ipv6: check skb->protocol before lookup for nexthop
  macvlan: Fix device ref leak when purging bc_queue
  ip6mr: fix notification device destruction
  netpoll: Check for skb->queue_mapping
  net: ipv6: RTF_PCPU should not be settable from userspace
  dp83640: don't recieve time stamps twice
  tcp: clear saved_syn in tcp_disconnect()
  sctp: listen on the sock only when it's state is listening or closed
  net: ipv4: fix multipath RTM_GETROUTE behavior when iif is given
  ...

Conflicts:
	drivers/usb/dwc3/gadget.c
	include/linux/usb/quirks.h

Change-Id: I490f766b9a530b10da3107e20709538e4536a99d
2017-05-06 14:23:00 +08:00
Mohan Srinivasan
9e9c17398f ANDROID: Replace spaces by '_' for some android filesystem tracepoints.
Andoid files frequently have spaces in them, as do cmdline strings.
Replace these spaces with '_', so tools that parse these tracepoints
don't get terribly confused.

Change-Id: I1cbbedf5c803aa6a58d9b8b7836e9125683c49d1
Signed-off-by: Mohan Srinivasan <srmohan@google.com>
(cherry picked from commit 5035d5f0933758dd515327d038e5bef7e40dbaa7)
2017-04-10 13:12:16 +05:30
Mohan Srinivasan
db94337285 ANDROID: Refactor fs readpage/write tracepoints.
Refactor the fs readpage/write tracepoints to move the
inode->path lookup outside the tracepoint code, and pass a pointer
to the path into the tracepoint code instead. This is necessary
because the tracepoint code runs non-preemptible. Thanks to
Trilok Soni for catching this in 4.4.

Change-Id: I7486c5947918d155a30c61d6b9cd5027cf8fbe15
Signed-off-by: Mohan Srinivasan <srmohan@google.com>
2017-04-10 13:12:16 +05:30
Huang, Tao
77bab04357 Merge tag 'lsk-v4.4-17.03-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
LSK 17.03 v4.4-android

* tag 'lsk-v4.4-17.03-android': (166 commits)
  Linux 4.4.55
  ext4: don't BUG when truncating encrypted inodes on the orphan list
  dm: flush queued bios when process blocks to avoid deadlock
  nfit, libnvdimm: fix interleave set cookie calculation
  s390/kdump: Use "LINUX" ELF note name instead of "CORE"
  KVM: s390: Fix guest migration for huge guests resulting in panic
  mvsas: fix misleading indentation
  serial: samsung: Continue to work if DMA request fails
  USB: serial: io_ti: fix information leak in completion handler
  USB: serial: io_ti: fix NULL-deref in interrupt callback
  USB: iowarrior: fix NULL-deref in write
  USB: iowarrior: fix NULL-deref at probe
  USB: serial: omninet: fix reference leaks at open
  USB: serial: safe_serial: fix information leak in completion handler
  usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers
  usb: host: xhci-dbg: HCIVERSION should be a binary number
  usb: gadget: function: f_fs: pass companion descriptor along
  usb: dwc3: gadget: make Set Endpoint Configuration macros safe
  usb: gadget: dummy_hcd: clear usb_gadget region before registration
  powerpc: Emulation support for load/store instructions on LE
  ...

Change-Id: I4db95bbe5b2523e19ddf22b3f65863f7f6d46632
2017-03-31 11:43:47 +08:00
Alex Shi
e0d60977f2 Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2017-03-20 12:03:10 +08:00
Rik van Riel
074893495b tracing: Add #undef to fix compile error
commit bf7165cfa2 upstream.

There are several trace include files that define TRACE_INCLUDE_FILE.

Include several of them in the same .c file (as I currently have in
some code I am working on), and the compile will blow up with a
"warning: "TRACE_INCLUDE_FILE" redefined #define TRACE_INCLUDE_FILE syscalls"

Every other include file in include/trace/events/ avoids that issue
by having a #undef TRACE_INCLUDE_FILE before the #define; syscalls.h
should have one, too.

Link: http://lkml.kernel.org/r/20160928225554.13bd7ac6@annuminas.surriel.com

Fixes: b8007ef742 ("tracing: Separate raw syscall from syscall tracer")
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-18 19:09:57 +08:00
Huang, Tao
7b2f394bb8 Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (199 commits)
  Linux 4.4.41
  net: mvpp2: fix dma unmapping of TX buffers for fragments
  sg_write()/bsg_write() is not fit to be called under KERNEL_DS
  kconfig/nconf: Fix hang when editing symbol with a long prompt
  target/user: Fix use-after-free of tcmu_cmds if they are expired
  powerpc: Convert cmp to cmpd in idle enter sequence
  powerpc/ps3: Fix system hang with GCC 5 builds
  nfs_write_end(): fix handling of short copies
  libceph: verify authorize reply on connect
  PCI: Check for PME in targeted sleep state
  Input: drv260x - fix input device's parent assignment
  media: solo6x10: fix lockup by avoiding delayed register write
  IB/cma: Fix a race condition in iboe_addr_get_sgid()
  IB/multicast: Check ib_find_pkey() return value
  IPoIB: Avoid reading an uninitialized member variable
  IB/mad: Fix an array index check
  fgraph: Handle a case where a tracer ignores set_graph_notrace
  platform/x86: asus-nb-wmi.c: Add X45U quirk
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it
  kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF)
  ...

Change-Id: I8c8467700d5563d9a1121c982737ff0ab6d9cdc9
2017-01-10 16:07:06 +08:00
mukesh agrawal
282b308ad3 ANDROID: trace: net: use %pK for kernel pointers
We want to use network trace events in production
builds, to help diagnose Wifi problems. However, we
don't want to expose raw kernel pointers in such
builds.

Change the format specifier for the skbaddr field,
so that, if kptr_restrict is enabled, the pointers
will be reported as 0.

Bug: 30090733
Change-Id: Ic4bd583d37af6637343601feca875ee24479ddff
Signed-off-by: mukesh agrawal <quiche@google.com>
2017-01-02 14:47:30 +05:30
Ke Wang
3f5ec85c09 sched: fix wrong truncation of walt_avg
The result of "__entry->walt_avg = (__entry->demand << 10)" will exceed
the range of "unsigned int", which will be truncated and make the trace
looks like as follows:

UnityMain-4588  [004]  6029.645672: walt_update_history:  4588(UnityMain): runtime 9928307 samples 1 event 4
			demand 9928307 walt 157 pelt 870 (hist: 9928307 9604307 8440077 87392 34144328) cpu 4
UnityMain-4588  [004]  6029.653658: walt_update_history:  4588(UnityMain): runtime 10000000 samples 1 event 4
			demand 10000000 walt 165 pelt 886 (hist: 10000000 9955691 6549308 64000 34144328) cpu 4

Fix this by using a u64 type instead of unsgined int type and make the
trace as below:

UnityMain-4617  [004]   117.613558: walt_update_history:  4617(UnityMain): runtime 5770597 samples 1 event 4
			demand 7038739 walt 720 pelt 680 (hist: 5770597 7680001 8904509 65596 156) cpu 4
UnityMain-4617  [004]   117.633560: walt_update_history:  4617(UnityMain): runtime 9911238 samples 1 event 4
			demand 9911238 walt 1014 pelt 769 (hist: 9911238 5770597 7680001 0 1664188058) cpu 4

Signed-off-by: Ke Wang <ke.wang@spreadtrum.com>
2017-01-02 13:54:08 +05:30
Huang, Tao
f9ae5d202b Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (1362 commits)
  Linux 4.4.30
  Revert "fix minor infoleak in get_user_ex()"
  Revert "x86/mm: Expand the exception table logic to allow new handling options"
  Linux 4.4.29
  ARM: pxa: pxa_cplds: fix interrupt handling
  powerpc/nvram: Fix an incorrect partition merge
  mpt3sas: Don't spam logs if logging level is 0
  perf symbols: Fixup symbol sizes before picking best ones
  perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
  perf hists browser: Fix event group display
  clk: divider: Fix clk_divider_round_rate() to use clk_readl()
  clk: qoriq: fix a register offset error
  s390/con3270: fix insufficient space padding
  s390/con3270: fix use of uninitialised data
  s390/cio: fix accidental interrupt enabling during resume
  x86/mm: Expand the exception table logic to allow new handling options
  dmaengine: ipu: remove bogus NO_IRQ reference
  power: bq24257: Fix use of uninitialized pointer bq->charger
  staging: r8188eu: Fix scheduling while atomic splat
  ASoC: dapm: Fix kcontrol creation for output driver widget
  ...
2016-11-04 14:30:24 +08:00
Mohan Srinivasan
31f42471b1 ANDROID: fs: FS tracepoints to track IO.
Adds tracepoints in ext4/f2fs/mpage to track readpages/buffered
write()s. This allows us to track files that are being read/written
to PIDs.

Change-Id: I26bd36f933108927d6903da04d8cb42fd9c3ef3d
Signed-off-by: Mohan Srinivasan <srmohan@google.com>
2016-10-12 17:34:22 +05:30
Alex Shi
5f87c475f8 Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts:
	in fs/proc/task_mmu.c:
	looks like vma_get_anon_name() want have a name for anonymous
	vma when there is no name used in vma. commit: 586278d78b
	The name show is after any other names, so it maybe covered.
	but anyway, it just a show here.
2016-09-20 15:18:54 +08:00
Amit Pundir
6b84e134d8 sched/walt: use do_div instead of division operator
Use do_div() instead of "/" operator to fix undefined references to
"__aeabi_uldivmod" build error for ARCH=arm.

Also in TP_fast_assign(), along with do_div() usage,  replace "," with
";" which would have resulted in a syntax error (!), because
'#define TP_fast_assign(args...) args' would have stripped off the ","
and left white space between these two assignments after CPP phase.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
[jstultz: Cherry-picked from common/android-3.18]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2016-09-14 15:17:01 +05:30
Patrick Bellasi
49e4bbf3cc DEBUG: sched: add tracepoint for RD overutilized
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 15:02:22 +05:30
Srivatsa Vaddagiri
b41fa2aec5 sched: Introduce Window Assisted Load Tracking (WALT)
use a window based view of time in order to track task
demand and CPU utilization in the scheduler.

Window Assisted Load Tracking (WALT) implementation credits:
 Srivatsa Vaddagiri, Steve Muckle, Syed Rameez Mustafa, Joonwoo Park,
 Pavan Kumar Kondeti, Olav Haugan

2016-03-06: Integration with EAS/refactoring by Vikram Mulukutla
            and Todd Kjos

Change-Id: I21408236836625d4e7d7de1843d20ed5ff36c708

Includes fixes for issues:

eas/walt: Use walt_ktime_clock() instead of ktime_get_ns() to avoid a
race resulting in watchdog resets
BUG: 29353986
Change-Id: Ic1820e22a136f7c7ebd6f42e15f14d470f6bbbdb

Handle walt accounting anomoly during resume

During resume, there is a corner case where on wakeup, a task's
prev_runnable_sum can go negative. This is a workaround that
fixes the condition and warns (instead of crashing).

BUG: 29464099
Change-Id: I173e7874324b31a3584435530281708145773508

Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Srinath Sridharan <srinathsr@google.com>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
[jstultz: fwdported to 4.4]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2016-09-14 15:02:22 +05:30
Srinath Sridharan
3fc52a99e7 sched/tune: Add support for negative boost values
Change-Id: I164ee04ba98c3a776605f18cb65ee61b3e917939

Contains also:

eas/stune: schedtune cpu boost_max must be non-negative.

This is to avoid under-accounting cpu capacity which may
cause task stacking and frequency spikes.

Change-Id: Ie1c1cbd52a6edb77b4c15a830030aa748dff6f29
2016-09-14 14:59:32 +05:30
Patrick Bellasi
f0ba6a5d0c FIXUP: sched: fix build for non-SMP target
Currently the build for a single-core (e.g. user-mode) Linux is broken
and this configuration is required (at least) to run some network tests.

The main issues for the current code support on single-core systems are:
1. {se,rq}::sched_avg is not available nor maintained for !SMP systems
   This means that load and utilisation signals are NOT available in single
   core systems. All the EAS code depends on these signals.
2. sched_group_energy is also SMP dependant. Again this means that all the
   EAS setup and preparation code (energyn model initialization) has to be
   properly guarded/disabled for !SMP systems.
3. SchedFreq depends on utilization signal, which is not available on
   !SMP systems.
4. SchedTune is useless on unicore systems if SchedFreq is not available.
5. WALT machinery is not required on single-core systems.

This patch addresses all these issues by enforcing some constraints for
single-core systems:
a) WALT, SchedTune and SchedTune are now dependant on SMP
b) The default governor for !SMP systems is INTERACTIVE
c) The energy model initialisation/build functions are
d) Other minor code re-arrangements and CONFIG_SMP guarding to enable
   single core builds.

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
13a60dc148 DEBUG: sched/tune: add tracepoint on P-E space filtering
Change-Id: I31dfed67c0486713b88efb75df767329f2802e06
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
486c7afa76 DEBUG: sched/tune: add tracepoint for energy_diff() values
Change-Id: Id8fafbd85f6d81248f322e073ee790a7ceec0bf7
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
88c4572243 DEBUG: sched/tune: add tracepoint for task boost signal
Change-Id: I545d3bf5569fc41c0fa70f51dff9a19c11d532ee
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
a727f6b626 DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
37437e7367 DEBUG: schedtune: add tracepoint for CPU boost signal
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Patrick Bellasi
9b8dc08c88 DEBUG: schedtune: add tracepoint for SchedTune configuration update
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
2016-09-14 14:59:32 +05:30
Juri Lelli
bd818ccdee DEBUG: sched,cpufreq: add cpu_capacity change tracepoint
This is useful when we want to compare cpu utilization and
cpu curr capacity side by side.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
2016-09-14 14:59:32 +05:30
Juri Lelli
69852bd9a3 DEBUG: sched: add tracepoint for CPU load/util signals
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
2016-09-14 14:58:22 +05:30
Juri Lelli
c604a5fa23 DEBUG: sched: add tracepoint for task load/util signals
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
2016-09-14 14:58:22 +05:30
Juri Lelli
f4886c38ff DEBUG: sched: add tracepoint for cpu/freq scale invariance
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
2016-09-14 14:58:22 +05:30
Steve Muckle
6e4178facd sched/cpufreq_sched: add trace events
Trace events will aid in debugging, profiling and tuning.

Signed-off-by: Steve Muckle <smuckle@linaro.org>
2016-09-14 14:58:22 +05:30
Trond Myklebust
7bda3b121a SUNRPC: Don't allocate a full sockaddr_storage for tracing
commit db1bb44c4c upstream.

We're always tracing IPv4 or IPv6 addresses, so we can save a lot
of space on the ringbuffer by allocating the correct sockaddr size.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Fixes: 83a712e0af "sunrpc: add some tracepoints around ..."
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20 18:09:26 +02:00
Huang, Tao
1d25707ec2 Merge branch 'lsk-v4.4-eas-v5.2' of git://git.linaro.org/arm/eas/kernel.git
* lsk-v4.4-eas-v5.2:
  DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
  DEBUG: schedtune: add tracepoint for CPU boost signal
  DEBUG: schedtune: add tracepoint for SchedTune configuration update
  DEBUG: sched: add energy procfs interface
  DEBUG: sched,cpufreq: add cpu_capacity change tracepoint
  DEBUG: sched: add tracepoint for CPU load/util signals
  DEBUG: sched: add tracepoint for task load/util signals
  DEBUG: sched: add tracepoint for cpu/freq scale invariance
  sched/fair: filter energy_diff() based on energy_payoff value
  sched/tune: add support to compute normalized energy
  sched/fair: keep track of energy/capacity variations
  sched/fair: add boosted task utilization
  sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value
  sched/tune: compute and keep track of per CPU boost value
  sched/tune: add initial support for CGroups based boosting
  sched/fair: add boosted CPU usage
  sched/fair: add function to convert boost value into "margin"
  sched/tune: add sysctl interface to define a boost value
  sched/tune: add detailed documentation
  fixup! sched/fair: jump to max OPP when crossing UP threshold
  fixup! sched: scheduler-driven cpu frequency selection
  sched: rt scheduler sets capacity requirement
  sched: deadline: use deadline bandwidth in scale_rt_capacity
  sched: remove call of sched_avg_update from sched_rt_avg_update
  sched/cpufreq_sched: add trace events
  sched/fair: jump to max OPP when crossing UP threshold
  sched/fair: cpufreq_sched triggers for load balancing
  sched/{core,fair}: trigger OPP change request on fork()
  sched/fair: add triggers for OPP change requests
  sched: scheduler-driven cpu frequency selection
  cpufreq: introduce cpufreq_driver_is_slow
  sched: Consider misfit tasks when load-balancing
  sched: Add group_misfit_task load-balance type
  sched: Add per-cpu max capacity to sched_group_capacity
  sched: Do eas idle balance regardless of the rq avg idle value
  arm64: Enable max freq invariant scheduler load-tracking and capacity support
  arm: Enable max freq invariant scheduler load-tracking and capacity support
  sched: Update max cpu capacity in case of max frequency constraints
  cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support
  arm64, topology: Updates to use DT bindings for EAS costing data
  sched: Support for extracting EAS energy costs from DT
  Documentation: DT bindings for energy model cost data required by EAS
  sched: Disable energy-unfriendly nohz kicks
  sched: Consider a not over-utilized energy-aware system as balanced
  sched: Energy-aware wake-up task placement
  sched: Determine the current sched_group idle-state
  sched, cpuidle: Track cpuidle state index in the scheduler
  sched: Add over-utilization/tipping point indicator
  sched: Estimate energy impact of scheduling decisions
  sched: Extend sched_group_energy to test load-balancing decisions
  sched: Calculate energy consumption of sched_group
  sched: Highest energy aware balancing sched_domain level pointer
  sched: Relocated cpu_util() and change return type
  sched: Compute cpu capacity available at current frequency
  arm64: Cpu invariant scheduler load-tracking and capacity support
  arm: Cpu invariant scheduler load-tracking and capacity support
  sched: Introduce SD_SHARE_CAP_STATES sched_domain flag
  sched: Initialize energy data structures
  sched: Introduce energy data structures
  sched: Make energy awareness a sched feature
  sched: Documentation for scheduler energy cost model
  sched: Prevent unnecessary active balance of single task in sched group
  sched: Enable idle balance to pull single task towards cpu with higher capacity
  sched: Consider spare cpu capacity at task wake-up
  sched: Add cpu capacity awareness to wakeup balancing
  sched: Store system-wide maximum cpu capacity in root domain
  arm: Update arch_scale_cpu_capacity() to reflect change to define
  arm64: Enable frequency invariant scheduler load-tracking support
  arm: Enable frequency invariant scheduler load-tracking support
  cpufreq: Frequency invariant scheduler load-tracking support
  sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task()

Conflicts:
	drivers/cpufreq/Kconfig
	include/linux/cpufreq.h
	include/trace/events/power.h

Change-Id: I0efa846911ea6b8d3f458115529cf67be73858e3
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
2016-06-08 14:09:19 +08:00
Thierry Strudel
7f2bcf32a3 trace: cpufreq: fix typo in min/max cpufreq
Change-Id: Ieed402d3a912b7a318826e101efe2c24b07ebfe4
Signed-off-by: Thierry Strudel <tstrudel@google.com>
2016-04-07 16:50:03 +05:30