Merge branch 'linus' into x86/hyperv

Pick up upstream fixes to avoid conflicts.

Merge tag 'perf-core-for-mingo-5.5-20191107' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf rep

Merge tag 'perf-core-for-mingo-5.5-20191107' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf report:

Jin Yao:

- Introduce --total-cycles, for basic block profiling, further using data
obtained from LBR, an example should suffice:

# perf record -b
^C[ perf record: Woken up 595 times to write data ]
[ perf record: Captured and wrote 156.672 MB perf.data (196873 samples) ]

# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|BRANCH_STACK, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: ANY

# perf report --total-cycles --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 6M of event 'cycles'
# Event count (approx.): 6299936
#
# Sampled Sampled Avg Avg
# Cycles% Cycles Cycles% Cycles [Program Block Range] Shared Object
# ....... ...... ....... ..... .................................... ................
#
2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux]
0.72% 544.5K 0.03% 230 [entry_64.S:657 -> entry_64.S:662] [kernel.vmlinux]
0.56% 541.8K 0.09% 672 [compiler.h:199 -> common.c:300] [kernel.vmlinux]
0.39% 293.2K 0.01% 104 [list_debug.c:43 -> list_debug.c:61] [kernel.vmlinux]
0.36% 278.6K 0.03% 272 [entry_64.S:1289 -> entry_64.S:1308] [kernel.vmlinux]

perf record:

Adrian Hunter:

- Allow storing perf.data in a directory together with a copy of /proc/kcore.

Jiwei Sun:

- Add support for limit perf output file size, i.e.:

# perf record --all-cpus -F 10000 --max-size=4M sleep 10h
[ perf record: perf size limit reached (4097 KB), stopping session ]
[ perf record: Woken up 6 times to write data ]
[ perf record: Captured and wrote 4.048 MB perf.data (54094 samples) ]
Terminated
# ls -lah perf.data
-rw-------. 1 root root 4.1M Nov 7 15:27 perf.data
#

perf stat:

Jiri Olsa:

- Add --per-node agregation support:

In live mode:

# perf stat -a -I 1000 -e cycles --per-node
# time node cpus counts unit events
1.000542550 N0 20 6,202,097 cycles
1.000542550 N1 20 639,559 cycles
2.002040063 N0 20 7,412,495 cycles
2.002040063 N1 20 2,185,577 cycles
3.003451699 N0 20 6,508,917 cycles
3.003451699 N1 20 765,607 cycles
...

Or in the record/report stat session:

# perf stat record -a -I 1000 -e cycles
# time counts unit events
1.000536937 10,008,468 cycles
2.002090152 9,578,539 cycles
3.003625233 7,647,869 cycles
4.005135036 7,032,086 cycles
^C 4.340902364 3,923,893 cycles

# perf stat report --per-node
# time node cpus counts unit events
1.000536937 N0 20 9,355,086 cycles
1.000536937 N1 20 653,382 cycles
2.002090152 N0 20 7,712,838 cycles
2.002090152 N1 20 1,865,701 cycles
...

perf probe:

Masami Hiramatsu:

Various fixes related to recent additions to the DWARF format:

- Fix to find range-only function instance

- Walk function lines in lexical blocks

- Fix to show function entry line as probe-able

- Fix wrong address verification

- Fix to probe a function which has no entry pc

- Fix to probe an inline function which has no entry pc

- Fix to list probe event with correct line number

- Fix to show inlined function callsite without entry_pc

- Fix to show ranges of variables in functions without entry_pc

- Return a better scope DIE if there is no best scope

- Skip end-of-sequence and non statement lines

- Filter out instances except for inlined subroutine and subprogram

- Fix to show calling lines of inlined functions

- Skip overlapped location on searching variables

perf inject:

Adrian Hunter:

- Do not strip evsels with --strip, as they are needed for create_gcov
(see the autofdo example in tools/perf/Documentation/intel-pt.txt).

Intel PT:

Adrian Hunter:

- Intel PT uses an auxtrace_cache to store the results of code-walking, to avoid
repeated decoding. Add an auxtrace_cache__remove to handle text poke events.

core:

Andi Kleen:

- Always preserve errno while cleaning up perf_event_open failures.

llvm:

Arnaldo Carvalho de Melo:

- No need to tell that the request for saving a .o file for BPF events, as
expressed in ~/.perfconfig was satisfied, make that a debug message.

perf vendor events:

Intel:

Haiyan Song:

- Update CascadelakeX events to v1.05.

- Update all the Intel JSON metrics from TMAM 3.6.

Treewide:

Ian Rogers:

- Improve error paths, plugging leaks found using LLVM tools
such as libFuzzer.

jevents:

Yunfeng Ye:

- Fix resource leak in process_mapfile() and main()

perf kvm:

Igor Lubashev:

- Use evlist layer api when possible.

libsubcmd:

James Clark:

- Move EXTRA_FLAGS to the end to allow overriding existing flags.

- Use -O0 with DEBUG=1

perf diff:

Jin Yao:

- Don't use hack to skip column length calculation

CoreSight ETM:

Leo yan:

- Fix definition of macro TO_CS_QUEUE_NR

ARM64:

John Garry:

- Do not try to include libelf header files when its feature detection
failed, fixing the cross build for ARM64.

perf tests:

Leo Yan:

- Fix out of bounds memory access in the backward ring buffer test.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge tag 'v5.4-rc7' into sched/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'for-linus' into for-5.5/block

Pull on for-linus to resolve what otherwise would have been a conflict
with the cgroups rstat patchset from Tejun.

* for-linus: (942 commits)
blkcg: ma

Merge branch 'for-linus' into for-5.5/block

Pull on for-linus to resolve what otherwise would have been a conflict
with the cgroups rstat patchset from Tejun.

* for-linus: (942 commits)
blkcg: make blkcg_print_stat() print stats only for online blkgs
nvme: change nvme_passthru_cmd64 to explicitly mark rsvd
nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths
nvme-rdma: fix a segmentation fault during module unload
iocost: don't nest spin_lock_irq in ioc_weight_write()
io_uring: ensure we clear io_kiocb->result before each issue
um-ubd: Entrust re-queue to the upper layers
nvme-multipath: remove unused groups_only mode in ana log
nvme-multipath: fix possible io hang after ctrl reconnect
io_uring: don't touch ctx in setup after ring fd install
io_uring: Fix leaked shadow_req
Linux 5.4-rc5
riscv: cleanup do_trap_break
nbd: verify socket is supported during setup
ata: libahci_platform: Fix regulator_get_optional() misuse
nbd: handle racing with error'ed out commands
nbd: protect cmd->status with cmd->lock
io_uring: fix bad inflight accounting for SETUP_IOPOLL|SETUP_SQTHREAD
io_uring: used cached copies of sq->dropped and cq->overflow
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
...

show more ...

Merge tag 'v5.4-rc6' into gpio/for-next

Linux 5.4-rc6

libsubcmd: Use -O0 with DEBUG=1

When a 'make DEBUG=1' build is done, the command parser is still built
with -O6 and is hard to step through, fix it making it use -O0 in that
case.

Signed-off-by: Ja

libsubcmd: Use -O0 with DEBUG=1

When a 'make DEBUG=1' build is done, the command parser is still built
with -O6 and is hard to step through, fix it making it use -O0 in that
case.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: nd <nd@arm.com>
Link: http://lore.kernel.org/lkml/20191028113340.4282-1-james.clark@arm.com
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

libsubcmd: Move EXTRA_FLAGS to the end to allow overriding existing flags

Move EXTRA_WARNINGS and EXTRA_FLAGS to the end of the compilation line,
otherwise they cannot be used to override the defaul

libsubcmd: Move EXTRA_FLAGS to the end to allow overriding existing flags

Move EXTRA_WARNINGS and EXTRA_FLAGS to the end of the compilation line,
otherwise they cannot be used to override the default values.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: nd <nd@arm.com>
Link: http://lore.kernel.org/lkml/20191028113340.4282-1-james.clark@arm.com
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Pull series refactoring quota enabling and disabling code.

Merge tag 'v5.4-rc6' into devel

Linux 5.4-rc6

Merge tag 'mips_fixes_5.4_3' into mips-next

Pull in mips-fixes primarily to gain build fixes in order to allow
better testing of mips-next.

A few MIPS fixes:

- Fix VDSO time-related function behav

Merge tag 'mips_fixes_5.4_3' into mips-next

Pull in mips-fixes primarily to gain build fixes in order to allow
better testing of mips-next.

A few MIPS fixes:

- Fix VDSO time-related function behavior for systems where we need to
fall back to syscalls, but were instead returning bogus results.

- A fix to TLB exception handlers for Cavium Octeon systems where they
would inadvertently clobber the $1/$at register.

- A build fix for bcm63xx configurations.

- Switch to using my @kernel.org email address.

Signed-off-by: Paul Burton <paulburton@kernel.org>

show more ...

Merge tag 'v5.4-rc4' into docs-next

I need to pick up the independent changes made to
Documentation/core-api/memory-allocation.rst to be able to merge further
work without creating a total mess.

Merge tag 'v5.4-rc5' into rdma.git for-next

Linux 5.4-rc5

For dependencies in the next patches

Conflict resolved by keeping the delete of the unlock.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.

Merge tag 'v5.4-rc5' into rdma.git for-next

Linux 5.4-rc5

For dependencies in the next patches

Conflict resolved by keeping the delete of the unlock.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

show more ...

Merge tag 'v5.4-rc5' into next

Sync up with mainline.

Merge 5.4-rc5 into driver-core-next

We want the sysfs fix in here as well to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge drm/drm-next into drm-misc-next

Parroting Daniel's backmerge justification from
2e79e22e092acd55da0b2db066e4826d7d152c41:

Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol

Merge drm/drm-next into drm-misc-next

Parroting Daniel's backmerge justification from
2e79e22e092acd55da0b2db066e4826d7d152c41:

Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.

Signed-off-by: Sean Paul <seanpaul@chromium.org>

show more ...

Merge v5.4-rc4 into drm-next

Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.

Some adjacent changes conflicts, plus some cl

Merge v5.4-rc4 into drm-next

Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.

Some adjacent changes conflicts, plus some clashes in i915 due to
cherry-picking and git trying to be helpful and leaving both versions
in.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

show more ...

Merge tag 'v5.4-rc4' into devel

Linux 5.4-rc4

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Several cases of overlapping changes which were for the most
part trivially resolvable.

Signed-off-by: David S. Miller <davem@davemlof

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Several cases of overlapping changes which were for the most
part trivially resolvable.

Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

Merge tag 'v5.4-rc3' into spi-5.4

Linux 5.4-rc3

Merge 5.4-rc3 into char-misc-next

We need the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 5.4-rc3 into tty-next

We need the tty/serial fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 5.4-rc3 into usb-next

we want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 5.4-rc3 into staging-next

We want the staging driver fixes in here as well to build on and test
with.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also a couple of updates for new Intel
m

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also a couple of updates for new Intel
models (which are technically hw-enablement, but to users it's a fix
to perf behavior on those new CPUs - hope this is fine), an AUX
inheritance fix, event time-sharing fix, and a fix for lost non-perf
NMI events on AMD systems"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
perf/x86/cstate: Add Tiger Lake CPU support
perf/x86/msr: Add Tiger Lake CPU support
perf/x86/intel: Add Tiger Lake CPU support
perf/x86/cstate: Update C-state counters for Ice Lake
perf/x86/msr: Add new CPU model numbers for Ice Lake
perf/x86/cstate: Add Comet Lake CPU support
perf/x86/msr: Add Comet Lake CPU support
perf/x86/intel: Add Comet Lake CPU support
perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp
perf/core: Fix corner case in perf_rotate_context()
perf/core: Rework memory accounting in perf_mmap()
perf/core: Fix inheritance of aux_output groups
perf annotate: Don't return -1 for error when doing BPF disassembly
perf annotate: Return appropriate error code for allocation failures
perf annotate: Fix arch specific ->init() failure errors
perf annotate: Propagate the symbol__annotate() error return
perf annotate: Fix the signedness of failure returns
perf annotate: Propagate perf_env__arch() error
perf evsel: Fall back to global 'perf_env' in perf_evsel__env()
perf tools: Propagate get_cpuid() error
...

show more ...

Merge tag 'perf-urgent-for-mingo-5.4-20191001' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

perf script:

And

Merge tag 'perf-urgent-for-mingo-5.4-20191001' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

perf script:

Andi Kleen:

- Fix recovery from LBR/binary mismatch in the "brstackinsn" --field.

perf annotate:

Arnaldo Carvalho de Melo:

- Propagate errors so that meaningful messages can be presented to the
user in case of problems.

perf map:

Steve MacLean:

- Fix handling of maps partially overlapped, resolving symbols in the
ranges not replaced by new mmaps.

perf tests:

Ian Rogers:

- Use raise() instead of NULL derefs to avoid causing a SIGILL rather than a
SIGSEGV for optimized builds that turn NULL derefs into ud2 instructions.

perf LLVM:

Ian Rogers:

- Don't access out-of-scope array.

perf inject:

Steve MacLean:

- Fix JIT_CODE_MOVE filename, that was having a u64 truncaded into a 32-bit
snprintf format and also a missing ".so" suffix in another case.

libsubcmd:

Ian Rogers:

- Make _FORTIFY_SOURCE defines dependent on the feature, avoiding
false positives with with memory sanitizers such as LLVM's ASan.

Vendor specific events:

Intel:

Andi Kleen:

- Fix period for Intel fixed counters.

s390:

Thomas Richter (2):

- Fix some event details transaction for machine type 8561.

tools headers UAPI:

Arnaldo Carvalho de Melo:

- Sync headers with the kernel, catching new usbdevfs ioctls and
madvise behaviours to properly decode in 'perf trace' output.

Documentation:

Steve MacLean:

- Correct and clarify jitdump spec.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...