Merge tag 'v4.7-rc1' into patchwork

Linux 4.7-rc1

* tag 'v4.7-rc1': (10534 commits)
Linux 4.7-rc1
hash_string: Fix zero-length case for !DCACHE_WORD_ACCESS
Rename other copy of hash_string to

Merge tag 'v4.7-rc1' into patchwork

Linux 4.7-rc1

* tag 'v4.7-rc1': (10534 commits)
Linux 4.7-rc1
hash_string: Fix zero-length case for !DCACHE_WORD_ACCESS
Rename other copy of hash_string to hashlen_string
hpfs: implement the show_options method
affs: fix remount failure when there are no options changed
hpfs: fix remount failure when there are no options changed
fs: fix binfmt_aout.c build error
h8300: Add <asm/hash.h>
microblaze: Add <asm/hash.h>
m68k: Add <asm/hash.h>
<linux/hash.h>: Add support for architecture-specific functions
fs/namei.c: Improve dcache hash function
Eliminate bad hash multipliers from hash_32() and hash_64()
Change hash_64() return value to 32 bits
<linux/sunrpc/svcauth.h>: Define hash_str() in terms of hashlen_string()
fs/namei.c: Add hashlen_string() function
Pull out string hash to <linux/stringhash.h>
Revert "platform/chrome: chromeos_laptop: Add Leon Touch"
i2c: dev: use after free in detach
MIPS: Add missing FROZEN hotplug notifier transitions
...

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Merge branch 'linus' into x86/urgent, to refresh the tree

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

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

Pull perf updates from Ingo Molnar:
"Bigger kernel side changes:

- Add backwards writing capability t

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

Pull perf updates from Ingo Molnar:
"Bigger kernel side changes:

- Add backwards writing capability to the perf ring-buffer code,
which is preparation for future advanced features like robust
'overwrite support' and snapshot mode. (Wang Nan)

- Add pause and resume ioctls for the perf ringbuffer (Wang Nan)

- x86 Intel cstate code cleanups and reorgnization (Thomas Gleixner)

- x86 Intel uncore and CPU PMU driver updates (Kan Liang, Peter
Zijlstra)

- x86 AUX (Intel PT) related enhancements and updates (Alexander
Shishkin)

- x86 MSR PMU driver enhancements and updates (Huang Rui)

- ... and lots of other changes spread out over 40+ commits.

Biggest tooling side changes:

- 'perf trace' features and enhancements. (Arnaldo Carvalho de Melo)

- BPF tooling updates (Wang Nan)

- 'perf sched' updates (Jiri Olsa)

- 'perf probe' updates (Masami Hiramatsu)

- ... plus 200+ other enhancements, fixes and cleanups to tools/

The merge commits, the shortlog and the changelogs contain a lot more
details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (249 commits)
perf/core: Disable the event on a truncated AUX record
perf/x86/intel/pt: Generate PMI in the STOP region as well
perf buildid-cache: Use lsdir() for looking up buildid caches
perf symbols: Use lsdir() for the search in kcore cache directory
perf tools: Use SBUILD_ID_SIZE where applicable
perf tools: Fix lsdir to set errno correctly
perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/
perf trace: Move flock op beautifier to tools/perf/trace/beauty/
perf build: Add build-test for debug-frame on arm/arm64
perf build: Add build-test for libunwind cross-platforms support
perf script: Fix export of callchains with recursion in db-export
perf script: Fix callchain addresses in db-export
perf script: Fix symbol insertion behavior in db-export
perf symbols: Add dso__insert_symbol function
perf scripting python: Use Py_FatalError instead of die()
perf tools: Remove xrealloc and ALLOC_GROW
perf help: Do not use ALLOC_GROW in add_cmd_list
perf pmu: Make pmu_formats_string to check return value of strbuf
perf header: Make topology checkers to check return value of strbuf
perf tools: Make alias handler to check return value of strbuf
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Merge tag 'perf-core-for-mingo-20160408' 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:

User visible

Merge tag 'perf-core-for-mingo-20160408' 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:

User visible changes:

- Beautify more syscall arguments in 'perf trace', using the type column in
tracepoint /format fields to attach, for instance, a pid_t resolver to the
thread COMM, also attach a mode_t beautifier in the same fashion
(Arnaldo Carvalho de Melo)

- Build the syscall table id <-> name resolver using the same .tbl file
used in the kernel to generate headers, to avoid the delay in getting
new syscalls supported in the audit-libs external dependency, done so
far only for x86_64 (Arnaldo Carvalho de Melo)

- Improve the documentation of event specifications (Andi Kleen)

- Process update events in 'perf script', fixing up this use case:

# perf stat -a -I 1000 -e cycles record | perf script -s script.py

- Shared object symbol adjustment fixes, fixing symbol resolution in
Android (Wang Nan)

Infrastructure changes:

- Add dedicated unwind addr_space member into thread struct, to allow
tools to use thread->priv, noticed while working on having callchains
in 'perf trace' (Jiri Olsa)

Build fixes:

- Fix the build in Ubuntu 12.04 (Arnaldo Carvalho de Melo, Vinson Lee)

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

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perf tools: Allow generating per-arch syscall table arrays

Tools should use a mechanism similar to arch/x86/entry/syscalls/ to
generate a header file with the definitions for two variables:

stati

perf tools: Allow generating per-arch syscall table arrays

Tools should use a mechanism similar to arch/x86/entry/syscalls/ to
generate a header file with the definitions for two variables:

static const char *syscalltbl_x86_64[] = {
[0] = "read",
[1] = "write",
<SNIP>
[324] = "membarrier",
[325] = "mlock2",
[326] = "copy_file_range",
};
static const int syscalltbl_x86_64_max_id = 326;

In a per arch file that should then be included in
tools/perf/util/syscalltbl.c.

First one will be for x86_64.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-02uuamkxgccczdth8komspgp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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perf trace: Move syscall table id <-> name routines to separate class

We're using libaudit for doing name to id and id to syscall name
translations, but that makes 'perf trace' to have to wait for n

perf trace: Move syscall table id <-> name routines to separate class

We're using libaudit for doing name to id and id to syscall name
translations, but that makes 'perf trace' to have to wait for newer
libaudit versions supporting recently added syscalls, such as
"userfaultfd" at the time of this changeset.

We have all the information right there, in the kernel sources, so move
this code to a separate place, wrapped behind functions that will
progressively use the kernel source files to extract the syscall table
for use in 'perf trace'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-i38opd09ow25mmyrvfwnbvkj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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