21 Aug, 2012

1 commit

  • Changeset 0f6a3015:
    "perf tools: Support user regs and stack in sample parsing"

    uses hweight_long in evsel.c, so we need to drag util/hweight.c
    to the python binding.

    Ditto for ee8dd3c:
    "perf tools: Change strlist to use the new rblist"

    where we need to add util/rblist.c.

    Now twatch.py works again:

    # export PYTHONPATH=~acme/git/build/perf/python/
    # ~acme/git/linux/tools/perf/python/twatch.py
    cpu: 4, pid: 23639, tid: 23639 { type: fork, pid: 30659, ppid: 23639, tid: 30659, ptid: 23639, time: 36287872076780}
    cpu: 5, pid: 30659, tid: 30659 { type: comm, pid: 30659, tid: 30659, comm: ls }
    cpu: 5, pid: 30659, tid: 30659 { type: exit, pid: 30659, ppid: 30659, tid: 30659, ptid: 30659, time: 36287873681539}
    cpu: 4, pid: 23639, tid: 23639 { type: fork, pid: 30660, ppid: 23639, tid: 30660, ptid: 23639, time: 36291720420480}
    cpu: 5, pid: 30659, tid: 30659 { type: exit, pid: 30659, ppid: 30659, tid: 30659, ptid: 30659, time: 36287873685714}
    cpu: 5, pid: 30660, tid: 30660 { type: comm, pid: 30660, tid: 30660, comm: git }
    ^C
    KeyboardInterrupt

    Reported-by: Jérôme Carretero
    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-gmq82zp5blin9aml9g5tzokr@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     

05 Aug, 2012

1 commit

  • …/acme/linux into perf/urgent

    Pull perf/core fixes and some late updates from Arnaldo Carvalho de Melo:

    * Make clean brace expansion fix for some shells, from Palmer Cox

    * Warn user just once per guest kernel when not finding kernel info,
    from David Ahern

    * perf test fix from Jiri Olsa

    * Fix error handling on event creation in perf top, from David Ahern

    * Fix check on perf_target__strnerror, from Namhyung Kim

    * Save the whole cmdline, from David Ahern

    * Prep work for the DWARF CFI post unwinder, so that it doesn't
    uses perf_session in lots of places, just evlist/evsel is enough.

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

    Ingo Molnar
     

03 Aug, 2012

9 commits

  • The clean target uses brace expansion to remove some generated files. However,
    the default shells on many systems do not support this feature resulting in
    some generated files not being removed by clean.

    Signed-off-by: Palmer Cox
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343598883-17907-1-git-send-email-p@lmercox.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Palmer Cox
     
  • 'perf kvm top' shows a continual flurry of:
    Can't find guest [5201]'s kernel information

    if it can't find the guest info and with a lot of VMs running a user has no
    chance of reading them all. Limit message to once per guest.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343709095-7089-5-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • Built on rblist - like strlist. Used in the next patch.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343709095-7089-4-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • Replaces the direct use of rbtree code with the rblist API. In the end
    the patch is a no-op on strlist functionality; the API for strlist is
    not changed, only its implementaton.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343709095-7089-3-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • rblist is the rbtree based code from strlist. It will be the common code
    for strlist and the to-be-introduced intlist.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343709095-7089-2-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • Only want to process directories under the guestmnount directory that
    have a pid as a name (ie, all digits). Other entries in the guestmount
    directory should be ignored. There is already a check that requires the
    first character of each entry to be a digit, but atoi is used to convert
    the directory name to a pid. For example if guestmount contains a
    directory with the name 1foo, atoi converts it to a pid of 1 and a
    machine is created with a pid of 1. This is wrong; this directory really
    should be ignored. Use strtol to do that.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343616875-6455-1-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • A number of builtin commands process some user args and then pass the rest to
    cmd_record. cmd_record then saves argc/argv that it receives into the header of
    the perf data file. But this loses the arguments handled by the first command
    -- ie., the real command line from the user. This patch saves the command line
    as typed by the user rather than what was passed to cmd_record.

    As an example consider the command:
    $ perf kvm --guest --host --guestmount=/tmp/guest-mount record
    -fo /tmp/perf.data -ag -- sleep 10

    Currently the command saved to the header is:
    cmdline : /tmp/p3.5/perf record -o perf.data.kvm -fo /tmp/perf.data -ag -- sleep 1

    (ignore the duplicated -o -- the first would be yet another bug with perf-kvm).

    With this patch the command line saved to the header is:
    cmdline : /tmp/p3.5/perf kvm --guest --host --guestmount=/tmp/guest-mount
    record -fo /tmp/perf.data -ag -- sleep 1

    v2: simplified to saving the command in parse_options per Stephane's suggestion

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/r/1343616831-6408-1-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • 5a7ed29 fixed up perf-record but not perf-top. Similar argument holds
    for it -- fallback to PMU only if it does not exist and handle invalid
    attributes separately.

    Signed-off-by: David Ahern
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Namhyung Kim
    Cc: Peter Zijlstra
    Cc: Robert Richter
    Link: http://lkml.kernel.org/r/1343616783-6360-1-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    David Ahern
     
  • Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-jd8tqbx8o8bs4t4g50vyhoc2@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     

02 Aug, 2012

9 commits

  • Since we need evsel->{attr.{sample_{id_all,type}},sample_size},
    reducing the number of parameters tools have to pass.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-wdtmgak0ihgsmw1brb54a8h4@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • That is a more compact form of perf_session__parse_sample and to support
    multiple evlists per perf_session is the way to go anyway.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-vkxx3j5qktoj11bvcwmfjj13@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • Removing perf_session->id_hdr_size, as it can be obtained from the
    evsel/evlist.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-1nwc2kslu7gsfblu98xbqbll@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • Removing perf_session->sample_id_all, as it can be obtained from the
    evsel/evlist.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-ok58u1mlc5ci9b6p36r52uh1@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • Removing perf_session->sample_type, as it can be obtained from the
    evsel/evlist.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-mnt1zwlik7sp7z6ljc9kyefg@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • So that we don't have to store it in the perf_session instance, because
    in the future perf_session instances may have multiple evlists, each
    with different sample_type/sizes.

    Cc: David Ahern
    Cc: Frederic Weisbecker
    Cc: Jiri Olsa
    Cc: Mike Galbraith
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Stephane Eranian
    Link: http://lkml.kernel.org/n/tip-ptod86fxkpgq3h62m9refkv4@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Arnaldo Carvalho de Melo
     
  • It was a mistake just replace assert to BUG_ON since its condition
    should be negated. Fix it.

    Signed-off-by: Namhyung Kim
    Cc: "Kirill A. Shutemov"
    Cc: Ingo Molnar
    Cc: Kirill A. Shutemov
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Ulrich Drepper
    Link: http://lkml.kernel.org/r/1343267410-7758-1-git-send-email-namhyung@kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Namhyung Kim
     
  • Following commit introduced wrong array boundaries, that could lead to
    SIGSEGV.

    perf symbols: Factor DSO symtab types to generic binary types
    commit 44f24cb3156a1e7d2b6bb501b7f6153aed08994c
    Author: Jiri Olsa

    Fixing to use proper array size.

    Reported-by: Markus Trippelsdorf
    Signed-off-by: Jiri Olsa
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Markus Trippelsdorf
    Link: http://lkml.kernel.org/r/1343825277-10517-1-git-send-email-jolsa@redhat.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Jiri Olsa
     
  • Parse events tests got broken after following commit:

    perf tools: Fix trace events storms due to weight demux
    commit 0983cc0dbca45250cbb5984bec7c303ac265b8e5
    Author: Frederic Weisbecker

    that added PERF_SAMPLE_PERIOD sample type for tracepoints.

    Updating related tests.

    Signed-off-by: Jiri Olsa
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1343825338-10618-1-git-send-email-jolsa@redhat.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Jiri Olsa
     

01 Aug, 2012

3 commits

  • Merge Andrew's second set of patches:
    - MM
    - a few random fixes
    - a couple of RTC leftovers

    * emailed patches from Andrew Morton : (120 commits)
    rtc/rtc-88pm80x: remove unneed devm_kfree
    rtc/rtc-88pm80x: assign ret only when rtc_register_driver fails
    mm: hugetlbfs: close race during teardown of hugetlbfs shared page tables
    tmpfs: distribute interleave better across nodes
    mm: remove redundant initialization
    mm: warn if pg_data_t isn't initialized with zero
    mips: zero out pg_data_t when it's allocated
    memcg: gix memory accounting scalability in shrink_page_list
    mm/sparse: remove index_init_lock
    mm/sparse: more checks on mem_section number
    mm/sparse: optimize sparse_index_alloc
    memcg: add mem_cgroup_from_css() helper
    memcg: further prevent OOM with too many dirty pages
    memcg: prevent OOM with too many dirty pages
    mm: mmu_notifier: fix freed page still mapped in secondary MMU
    mm: memcg: only check anon swapin page charges for swap cache
    mm: memcg: only check swap cache pages for repeated charging
    mm: memcg: split swapin charge function into private and public part
    mm: memcg: remove needless !mm fixup to init_mm when charging
    mm: memcg: remove unneeded shmem charge type
    ...

    Linus Torvalds
     
  • "fault-injection: add tool to run command with failslab or
    fail_page_alloc" added tools/testing/fault-injection/failcmd.sh to make it
    easier to inject slab/page allocation failures by fault injection.

    failcmd.sh prints the following warning when running with arguments
    for command.

    # ./failcmd.sh echo aaa
    failcmd.sh: line 209: [: echo: binary operator expected
    aaa

    This warning is caused by an improper check whether at least one
    parameter is left after parsing command options.

    Fix it by testing the length of $1 instead of $@

    Signed-off-by: Akinobu Mita
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     
  • Pull perf updates from Ingo Molnar:
    "The biggest changes are Intel Nehalem-EX PMU uncore support, uprobes
    updates/cleanups/fixes from Oleg and diverse tooling updates (mostly
    fixes) now that Arnaldo is back from vacation."

    * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
    uprobes: __replace_page() needs munlock_vma_page()
    uprobes: Rename vma_address() and make it return "unsigned long"
    uprobes: Fix register_for_each_vma()->vma_address() check
    uprobes: Introduce vaddr_to_offset(vma, vaddr)
    uprobes: Teach build_probe_list() to consider the range
    uprobes: Remove insert_vm_struct()->uprobe_mmap()
    uprobes: Remove copy_vma()->uprobe_mmap()
    uprobes: Fix overflow in vma_address()/find_active_uprobe()
    uprobes: Suppress uprobe_munmap() from mmput()
    uprobes: Uprobe_mmap/munmap needs list_for_each_entry_safe()
    uprobes: Clean up and document write_opcode()->lock_page(old_page)
    uprobes: Kill write_opcode()->lock_page(new_page)
    uprobes: __replace_page() should not use page_address_in_vma()
    uprobes: Don't recheck vma/f_mapping in write_opcode()
    perf/x86: Fix missing struct before structure name
    perf/x86: Fix format definition of SNB-EP uncore QPI box
    perf/x86: Make bitfield unsigned
    perf/x86: Fix LLC-* and node-* events on Intel SandyBridge
    perf/x86: Add Intel Nehalem-EX uncore support
    perf/x86: Fix typo in format definition of uncore PCU filter
    ...

    Linus Torvalds
     

31 Jul, 2012

7 commits

  • Merge Andrew's first set of patches:
    "Non-MM patches:

    - lots of misc bits

    - tree-wide have_clk() cleanups

    - quite a lot of printk tweaks. I draw your attention to "printk:
    convert the format for KERN_ to a 2 byte pattern" which
    looks a bit scary. But afaict it's solid.

    - backlight updates

    - lib/ feature work (notably the addition and use of memweight())

    - checkpatch updates

    - rtc updates

    - nilfs updates

    - fatfs updates (partial, still waiting for acks)

    - kdump, proc, fork, IPC, sysctl, taskstats, pps, etc

    - new fault-injection feature work"

    * Merge emailed patches from Andrew Morton : (128 commits)
    drivers/misc/lkdtm.c: fix missing allocation failure check
    lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
    fault-injection: add tool to run command with failslab or fail_page_alloc
    fault-injection: add selftests for cpu and memory hotplug
    powerpc: pSeries reconfig notifier error injection module
    memory: memory notifier error injection module
    PM: PM notifier error injection module
    cpu: rewrite cpu-notifier-error-inject module
    fault-injection: notifier error injection
    c/r: fcntl: add F_GETOWNER_UIDS option
    resource: make sure requested range is included in the root range
    include/linux/aio.h: cpp->C conversions
    fs: cachefiles: add support for large files in filesystem caching
    pps: return PTR_ERR on error in device_create
    taskstats: check nla_reserve() return
    sysctl: suppress kmemleak messages
    ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
    ipc: compat: use signed size_t types for msgsnd and msgrcv
    ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC
    ipc: add COMPAT_SHMLBA support
    ...

    Linus Torvalds
     
  • This adds tools/testing/fault-injection/failcmd.sh to run a command while
    injecting slab/page allocation failures via fault injection.

    Example:

    Run a command "make -C tools/testing/selftests/ run_tests" with
    injecting slab allocation failure.

    # ./tools/testing/fault-injection/failcmd.sh \
    -- make -C tools/testing/selftests/ run_tests

    Same as above except to specify 100 times failures at most instead of
    one time at most by default.

    # ./tools/testing/fault-injection/failcmd.sh --times=100 \
    -- make -C tools/testing/selftests/ run_tests

    Same as above except to inject page allocation failure instead of slab
    allocation failure.

    # env FAILCMD_TYPE=fail_page_alloc \
    ./tools/testing/fault-injection/failcmd.sh --times=100 \
    -- make -C tools/testing/selftests/ run_tests

    Signed-off-by: Akinobu Mita
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     
  • This adds two selftests

    * tools/testing/selftests/cpu-hotplug/on-off-test.sh is testing script
    for CPU hotplug

    1. Online all hot-pluggable CPUs
    2. Offline all hot-pluggable CPUs
    3. Online all hot-pluggable CPUs again
    4. Exit if cpu-notifier-error-inject.ko is not available
    5. Offline all hot-pluggable CPUs in preparation for testing
    6. Test CPU hot-add error handling by injecting notifier errors
    7. Online all hot-pluggable CPUs in preparation for testing
    8. Test CPU hot-remove error handling by injecting notifier errors

    * tools/testing/selftests/memory-hotplug/on-off-test.sh is doing the
    similar thing for memory hotplug.

    1. Online all hot-pluggable memory
    2. Offline 10% of hot-pluggable memory
    3. Online all hot-pluggable memory again
    4. Exit if memory-notifier-error-inject.ko is not available
    5. Offline 10% of hot-pluggable memory in preparation for testing
    6. Test memory hot-add error handling by injecting notifier errors
    7. Online all hot-pluggable memory in preparation for testing
    8. Test memory hot-remove error handling by injecting notifier errors

    Signed-off-by: Akinobu Mita
    Suggested-by: Andrew Morton
    Cc: Pavel Machek
    Cc: "Rafael J. Wysocki"
    Cc: Greg KH
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Michael Ellerman
    Cc: Dave Jones
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     
  • Pull ktest changes from Steven Rostedt:
    "Set of updates for v3.6 (some fixes too)

    Seems that you opened the merge window the day I left for the beach.
    I just got back (yes us Americans only take a week vacation), and just
    got the last of my ktest quilt queue into git."

    * tag 'ktest-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
    ktest: Allow perl regex expressions in conditional statements
    ktest: Ignore errors it tests if IGNORE_ERRORS is set
    ktest: Reset saved min (force) configs for each test
    ktest: Add check for bug or panic during reboot
    ktest: Add MAX_MONITOR_WAIT option
    ktest: Fix config bisect with how make oldnoconfig works
    ktest: Add CONFIG_BISECT_CHECK option
    ktest: Add PRE_INSTALL option
    ktest: Add PRE/POST_KTEST and TEST options
    ktest: Remove commented exit

    Linus Torvalds
     
  • Add '=~' and '!~' to the list of allowed conditionals for DEFAULT and
    TEST_START section if statements.

    ie.

    TEST_START IF TEST =~ .*test$

    Signed-off-by: Steven Rostedt

    Steven Rostedt
     
  • The option IGNORE_ERRORS is used to allow a test to succeed even if a
    warning appears from the kernel. Sometimes kernels will produce warnings
    that are not associated with a test, and the user wants to test
    something else.

    The IGNORE_ERRORS works for boot up, but was not preventing test runs to
    succeed if the kernel produced a warning.

    Signed-off-by: Steven Rostedt

    Steven Rostedt
     
  • Pull SLAB changes from Pekka Enberg:
    "Most of the changes included are from Christoph Lameter's "common
    slab" patch series that unifies common parts of SLUB, SLAB, and SLOB
    allocators. The unification is needed for Glauber Costa's "kmem
    memcg" work that will hopefully appear for v3.7.

    The rest of the changes are fixes and speedups by various people."

    * 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: (32 commits)
    mm: Fix build warning in kmem_cache_create()
    slob: Fix early boot kernel crash
    mm, slub: ensure irqs are enabled for kmemcheck
    mm, sl[aou]b: Move kmem_cache_create mutex handling to common code
    mm, sl[aou]b: Use a common mutex definition
    mm, sl[aou]b: Common definition for boot state of the slab allocators
    mm, sl[aou]b: Extract common code for kmem_cache_create()
    slub: remove invalid reference to list iterator variable
    mm: Fix signal SIGFPE in slabinfo.c.
    slab: move FULL state transition to an initcall
    slab: Fix a typo in commit 8c138b "slab: Get rid of obj_size macro"
    mm, slab: Build fix for recent kmem_cache changes
    slab: rename gfpflags to allocflags
    slub: refactoring unfreeze_partials()
    slub: use __cmpxchg_double_slab() at interrupt disabled place
    slab/mempolicy: always use local policy from interrupt context
    slab: Get rid of obj_size macro
    mm, sl[aou]b: Extract common fields from struct kmem_cache
    slab: Remove some accessors
    slab: Use page struct fields instead of casting
    ...

    Linus Torvalds
     

27 Jul, 2012

2 commits

  • Pull ACPI & power management update from Len Brown:
    "Re-write of the turbostat tool.
    lower overhead was necessary for measuring very large system when
    they are very idle.

    IVB support in intel_idle
    It's what I run on my IVB, others should be able to also:-)

    ACPICA core update
    We have found some bugs due to divergence between Linux and the
    upstream ACPICA base. Most of these patches are to reduce that
    divergence to reduce the risk of future bugs.

    Some cpuidle updates, mostly for non-Intel
    More will be coming, as they depend on this part.

    Some thermal management changes needed by non-ACPI systems.

    Some _OST (OS Status Indication) updates for hot ACPI hot-plug."

    * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (51 commits)
    Thermal: Documentation update
    Thermal: Add Hysteresis attributes
    Thermal: Make Thermal trip points writeable
    ACPI/AC: prevent OOPS on some boxes due to missing check power_supply_register() return value check
    tools/power: turbostat: fix large c1% issue
    tools/power: turbostat v2 - re-write for efficiency
    ACPICA: Update to version 20120711
    ACPICA: AcpiSrc: Fix some translation issues for Linux conversion
    ACPICA: Update header files copyrights to 2012
    ACPICA: Add new ACPI table load/unload external interfaces
    ACPICA: Split file: tbxface.c -> tbxfload.c
    ACPICA: Add PCC address space to space ID decode function
    ACPICA: Fix some comment fields
    ACPICA: Table manager: deploy new firmware error/warning interfaces
    ACPICA: Add new interfaces for BIOS(firmware) errors and warnings
    ACPICA: Split exception code utilities to a new file, utexcep.c
    ACPI: acpi_pad: tune round_robin_time
    ACPICA: Update to version 20120620
    ACPICA: Add support for implicit notify on multiple devices
    ACPICA: Update comments; no functional change
    ...

    Linus Torvalds
     
  • Pull USB patches from Greg Kroah-Hartman:
    "Here's the big USB patch set for the 3.6-rc1 merge window.

    Lots of little changes in here, primarily for gadget controllers and
    drivers. There's some scsi changes that I think also went in through
    the scsi tree, but they merge just fine. All of these patches have
    been in the linux-next tree for a while now.

    Signed-off-by: Greg Kroah-Hartman "

    Fix up trivial conflicts in include/scsi/scsi_device.h (same libata
    conflict that Jeff had already encountered)

    * tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
    usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams
    usb: Add quirk detection based on interface information
    usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h
    USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer
    USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
    USB: notify phy when root hub port connect change
    USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds
    USB: option: add ZTE MF821D
    USB: sierra: QMI mode MC7710 moved to qcserial
    USB: qcserial: adding Sierra Wireless devices
    USB: qcserial: support generic Qualcomm serial ports
    USB: qcserial: make probe more flexible
    USB: qcserial: centralize probe exit path
    USB: qcserial: consolidate usb_set_interface calls
    USB: ehci-s5p: Add support for device tree
    USB: ohci-exynos: Add support for device tree
    USB: ehci-omap: fix compile failure(v1)
    usb: host: tegra: pass correct pointer in ehci_setup()
    USB: ehci-fsl: Update ifdef check to work on 64-bit ppc
    USB: serial: keyspan: Removed unrequired parentheses.
    ...

    Linus Torvalds
     

26 Jul, 2012

2 commits

  • …coupled', 'cpuidle-tweaks', 'intel_idle-ivb', 'ost', 'red-hat-bz-772730', 'thermal', 'thermal-spear' and 'turbostat-v2' into release

    Len Brown
     
  • A large enough symbol size causes an overflow in the size parameter to
    the histogram allocation, leading to a segfault in
    symbol__inc_addr_samples later on when this histogram is accessed.

    In the case of being called via perf-report, this returns back and
    gracefully ignores the sample, eventually ignoring the chained return
    value of perf_session_deliver_event in flush_sample_queue.

    Signed-off-by: Cody Schafer
    Acked-by: Namhyung Kim
    Cc: Ingo Molnar
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Sukadev Bhattiprolu
    Link: http://lkml.kernel.org/r/1342753525-4521-1-git-send-email-cody@linux.vnet.ibm.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Cody Schafer
     

25 Jul, 2012

6 commits

  • The TRACEEVENT-CFLAGS file is used to detect any change on compiler
    flags. Just ignore it.

    Signed-off-by: Namhyung Kim
    Cc: David Ahern
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1341559297-25725-3-git-send-email-namhyung@kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Namhyung Kim
     
  • Cross compiling perf requires setting ARCH and CROSS_COMPILE variables,
    but libtraceevent couldn't detect the changes so it ends up believing no
    recompiling is required. Thus the linker failed like:

    LINK perf
    ../lib/traceevent//libtraceevent.a: member ../lib/traceevent//libtraceevent.a(event-parse.o) in archive is not an object
    collect2: ld returned 1 exit status
    make: *** [perf] Error 1

    This patch fixes this by adding TRACEEVENT-CFLAGS file like
    PERF-CFLAGS to track those changes.

    Signed-off-by: Namhyung Kim
    Cc: David Ahern
    Cc: Ingo Molnar
    Cc: Jiri Olsa
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1341559297-25725-2-git-send-email-namhyung@kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo

    Namhyung Kim
     
  • Bison 2.6 started to generate parse_events_parse() declaration in header. In
    this case we have redundant redeclaration:

    util/parse-events.c:29:5: error: redundant redeclaration of ‘parse_events_parse’ [-Werror=redundant-decls]
    In file included from util/parse-events.c:14:0:
    util/parse-events-bison.h:99:5: note: previous declaration of ‘parse_events_parse’ was here
    cc1: all warnings being treated as errors

    Let's disable -Wredundant-decls for util/parse-events.c since it includes
    header we can't control.

    Signed-off-by: Kirill A. Shutemov
    Cc: Ingo Molnar
    Cc: Namhyung Kim
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/20120723210407.GA25186@shutemov.name
    Signed-off-by: Arnaldo Carvalho de Melo

    Kirill A. Shutemov
     
  • Perf uses GNU-specific version of strerror_r(). The GNU-specific strerror_r()
    returns a pointer to a string containing the error message. This may be either
    a pointer to a string that the function stores in buf, or a pointer to some
    (immutable) static string (in which case buf is unused).

    In glibc-2.16 GNU version was marked with attribute warn_unused_result. It
    triggers few warnings in perf:

    util/target.c: In function ‘perf_target__strerror’:
    util/target.c:114:13: error: ignoring return value of ‘strerror_r’, declared with attribute warn_unused_result [-Werror=unused-result]
    ui/browsers/hists.c: In function ‘hist_browser__dump’:
    ui/browsers/hists.c:981:13: error: ignoring return value of ‘strerror_r’, declared with attribute warn_unused_result [-Werror=unused-result]

    They are bugs.

    Let's fix strerror_r() usage.

    Signed-off-by: Kirill A. Shutemov
    Acked-by: Ulrich Drepper
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Ulrich Drepper
    Link: http://lkml.kernel.org/r/20120723210654.GA25248@shutemov.name
    [ committer note: s/assert/BUG_ON/g ]
    Signed-off-by: Arnaldo Carvalho de Melo

    Kirill A. Shutemov
     
  • There have one problem about hw_breakpoint perf event, as watched, the
    events reported to userspace is not correctly, sometime one trigger
    bp_event report several events, sometime bp_event cannot go through to
    user.

    The root cause is attr->freq is 1 passed to kernel defaultly in bp
    events, this make kernel calculate event period not as expect, make
    sample period to 1 will change attr->freq to 0, to fix this problem.

    This patch is similar with commit f92128 about tracepoint events:
    perf: Make the trace events sample period default to 1

    Signed-off-by: Jovi Zhang
    Cc: Ingo Molnar
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/CACV3sbLF8taiCq_VYW-sgRJyupeMzg58C7ZXfMe3xZUiH_Mx6w@mail.gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Jovi Zhang
     
  • Adding automated test for DSO data reading. Testing raw/cached reads
    from different file/cache locations.

    Signed-off-by: Jiri Olsa
    Cc: Arun Sharma
    Cc: Benjamin Redelings
    Cc: Corey Ashford
    Cc: Cyrill Gorcunov
    Cc: Frank Ch. Eigler
    Cc: Frederic Weisbecker
    Cc: Ingo Molnar
    Cc: Masami Hiramatsu
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Robert Richter
    Cc: Stephane Eranian
    Cc: Tom Zanussi
    Cc: Ulrich Drepper
    Link: http://lkml.kernel.org/r/1342959280-5361-18-git-send-email-jolsa@redhat.com
    Signed-off-by: Arnaldo Carvalho de Melo

    Jiri Olsa