Commit Graph

415302 Commits

Author SHA1 Message Date
Josh Boyer
b935a58dbf perf tools: Fix traceevent plugin path definitions
The plugindir_SQ definition contains $(prefix) which is not needed as
the $(libdir) definition already contains prefix in it.  This leads to
the path including an extra prefix in it, e.g. /usr/usr/lib64.

The -DPLUGIN_DIR defintion includes DESTDIR.  This is incorrect, as it
sets the plugin search path to include the value of DESTDIR.  DESTDIR is
a mechanism to install in a non-standard location such as a chroot or an
RPM build root.  In the RPM case, this leads to the search path being
incorrect after the resulting RPM is installed (or in some cases an RPM
build failure).

Remove both of these unnecessary inclusions.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140122150147.GK16455@hansolo.jdub.homelinux.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-23 15:48:12 -03:00
Ingo Molnar
bb236de5d9 perf/core fixes:
. Fix JIT symbol resolution on heap (Namhyung Kim)
 
 . Fix wrong SVG height in 'timechart' (Stanislav Fomichev)
 
 . Free temp cpu_map in perf_session__cpu_bitmap (Stanislav Fomichev)
 
 . Fix NULL pointer reference bug with event unit in 'stat' (Stephane Eranian)
 
 . Fix memory corruption of xyarray when cpumask is used (Stephane Eranian)
 
 . Ensure sscanf does not overrun the "mem" field (Alan Cox)
 
 . Add support for the xtensa architecture (Baruch Siach)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf tooling fixes and updates from Arnaldo Carvalho de Melo:

 * Fix JIT symbol resolution on heap (Namhyung Kim)

 * Fix wrong SVG height in 'timechart' (Stanislav Fomichev)

 * Free temp cpu_map in perf_session__cpu_bitmap (Stanislav Fomichev)

 * Fix NULL pointer reference bug with event unit in 'stat' (Stephane Eranian)

 * Fix memory corruption of xyarray when cpumask is used (Stephane Eranian)

 * Ensure sscanf does not overrun the "mem" field (Alan Cox)

 * Add support for the xtensa architecture (Baruch Siach)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-23 17:43:35 +01:00
Namhyung Kim
578c03c86f perf symbols: Fix JIT symbol resolution on heap
Gaurav reported that perf cannot profile JIT program if it executes the
code on heap.  This was because current map__new() only handle JIT on
anon mappings - extends it to handle no_dso (heap, stack) case too.

This patch assumes JIT profiling only provides dynamic function symbols
so check the mapping type to distinguish the case.  It'd provide no
symbols for data mapping - if we need to support symbols on data
mappings later it should be changed.

Reported-by: Gaurav Jain <gjain@fb.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Gaurav Jain <gjain@fb.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Gaurav Jain <gjain@fb.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1389836971-3549-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-21 10:56:05 -03:00
Linus Torvalds
15c8102620 Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x32 uapi changes from Peter Anvin:
 "This is the first few of a set of patches by H.J.  Lu to make the
  kernel uapi headers usable for x32, as required by some non-glibc
  libcs.

  These particular patches make the stat and statfs structures usable"

* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, x32: Use __kernel_long_t for __statfs_word
  x86, x32: Use __kernel_long_t/__kernel_ulong_t in x86-64 stat.h
2014-01-20 15:12:49 -08:00
Linus Torvalds
c9cdd9a6ae Merge branch 'x86/mpx' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpufeature and mpx updates from Peter Anvin:
 "This includes the basic infrastructure for MPX (Memory Protection
  Extensions) support, but does not include MPX support itself.  It is,
  however, a prerequisite for KVM support for MPX, which I believe will
  be pushed later this merge window by the KVM team.

  This includes moving the functionality in
  futex_atomic_cmpxchg_inatomic() into a new function in uaccess.h so it
  can be reused - this will be used by the final MPX patches.

  The actual MPX functionality (map management and so on) will be pushed
  in a future merge window, when ready"

* 'x86/mpx' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/intel/mpx: Remove unused LWP structure
  x86, mpx: Add MPX related opcodes to the x86 opcode map
  x86: replace futex_atomic_cmpxchg_inatomic() with user_atomic_cmpxchg_inatomic
  x86: add user_atomic_cmpxchg_inatomic at uaccess.h
  x86, xsave: Support eager-only xsave features, add MPX support
  x86, cpufeature: Define the Intel MPX feature flag
2014-01-20 14:46:32 -08:00
Linus Torvalds
f4bcd8ccdd Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 kernel address space randomization support from Peter Anvin:
 "This enables kernel address space randomization for x86"

* 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, kaslr: Clarify RANDOMIZE_BASE_MAX_OFFSET
  x86, kaslr: Remove unused including <linux/version.h>
  x86, kaslr: Use char array to gain sizeof sanity
  x86, kaslr: Add a circular multiply for better bit diffusion
  x86, kaslr: Mix entropy sources together as needed
  x86/relocs: Add percpu fixup for GNU ld 2.23
  x86, boot: Rename get_flags() and check_flags() to *_cpuflags()
  x86, kaslr: Raise the maximum virtual address to -1 GiB on x86_64
  x86, kaslr: Report kernel offset on panic
  x86, kaslr: Select random position from e820 maps
  x86, kaslr: Provide randomness functions
  x86, kaslr: Return location from decompress_kernel
  x86, boot: Move CPU flags out of cpucheck
  x86, relocs: Add more per-cpu gold special cases
2014-01-20 14:45:50 -08:00
Linus Torvalds
7fe67a1180 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull leftover x86 fixes from Ingo Molnar:
 "Two leftover fixes that did not make it into v3.13"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Add check for number of available vectors before CPU down
  x86, cpu, amd: Add workaround for family 16h, erratum 793
2014-01-20 12:11:41 -08:00
Linus Torvalds
fab5669d55 Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS changes from Ingo Molnar:

 - SCI reporting for other error types not only correctable ones

 - GHES cleanups

 - Add the functionality to override error reporting agents as some
   machines are sporting a new extended error logging capability which,
   if done properly in the BIOS, makes a corresponding EDAC module
   redundant

 - PCIe AER tracepoint severity levels fix

 - Error path correction for the mce device init

 - MCE timer fix

 - Add more flexibility to the error injection (EINJ) debugfs interface

* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, mce: Fix mce_start_timer semantics
  ACPI, APEI, GHES: Cleanup ghes memory error handling
  ACPI, APEI: Cleanup alignment-aware accesses
  ACPI, APEI, GHES: Do not report only correctable errors with SCI
  ACPI, APEI, EINJ: Changes to the ACPI/APEI/EINJ debugfs interface
  ACPI, eMCA: Combine eMCA/EDAC event reporting priority
  EDAC, sb_edac: Modify H/W event reporting policy
  EDAC: Add an edac_report parameter to EDAC
  PCI, AER: Fix severity usage in aer trace event
  x86, mce: Call put_device on device_register failure
2014-01-20 12:10:27 -08:00
Linus Torvalds
74e8ee8262 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel SoC changes from Ingo Molnar:
 "Improved Intel SoC platform support"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, tsc, apic: Unbreak static (MSR) calibration when CONFIG_X86_LOCAL_APIC=n
  x86, tsc: Add static (MSR) TSC calibration on Intel Atom SoCs
  arch: x86: New MailBox support driver for Intel SOC's
2014-01-20 12:09:31 -08:00
Linus Torvalds
8bd6964cbd Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm changes from Ingo Molnar:
 "A cleanup, a fix and ASLR support for hugetlb mappings"

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/numa: Fix 32-bit kernel NUMA boot
  x86/mm: Implement ASLR for hugetlb mappings
  x86/mm: Unify pte_to_pgoff() and pgoff_to_pte() helpers
2014-01-20 12:08:51 -08:00
Linus Torvalds
2bb2c5e235 Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loader updates from Ingo Molnar:
 "There are two main changes in this tree:

   - AMD microcode early loading fixes
   - some microcode loader source files reorganization"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode: Move to a proper location
  x86, microcode, AMD: Fix early ucode loading
  x86, microcode: Share native MSR accessing variants
  x86, ramdisk: Export relocated ramdisk VA
2014-01-20 12:07:54 -08:00
Linus Torvalds
4500cf60db Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel MID updates from Ingo Molnar:
 "This tree improves Intel MID (Mobile Internet Device) platform
  support:

   - Merrifield platform support (David Cohen)
   - Clovertrail platform support (Kuppuswamy Sathyanarayanan)
   - Various cleanups and fixes (David Cohen)"

* 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, intel_mid: Replace memcpy with struct assignment
  x86, intel-mid: Return proper error code from get_gpio_by_name()
  x86, intel-mid: Check get_gpio_by_name() error code on platform code
  x86, intel-mid: sfi_handle_*_dev() should check for pdata error code
  x86, intel-mid: Remove deprecated X86_MDFLD and X86_WANT_INTEL_MID configs
  x86, intel-mid: Add Merrifield platform support
  x86, intel-mid: Add Clovertrail platform support
  x86, intel-mid: Move Medfield code out of intel-mid.c core file
2014-01-20 12:06:50 -08:00
Linus Torvalds
972d5e7e5b Merge branch 'x86-efi-kexec-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 EFI changes from Ingo Molnar:
 "This consists of two main parts:

   - New static EFI runtime services virtual mapping layout which is
     groundwork for kexec support on EFI (Borislav Petkov)

   - EFI kexec support itself (Dave Young)"

* 'x86-efi-kexec-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86/efi: parse_efi_setup() build fix
  x86: ksysfs.c build fix
  x86/efi: Delete superfluous global variables
  x86: Reserve setup_data ranges late after parsing memmap cmdline
  x86: Export x86 boot_params to sysfs
  x86: Add xloadflags bit for EFI runtime support on kexec
  x86/efi: Pass necessary EFI data for kexec via setup_data
  efi: Export EFI runtime memory mapping to sysfs
  efi: Export more EFI table variables to sysfs
  x86/efi: Cleanup efi_enter_virtual_mode() function
  x86/efi: Fix off-by-one bug in EFI Boot Services reservation
  x86/efi: Add a wrapper function efi_map_region_fixed()
  x86/efi: Remove unused variables in __map_region()
  x86/efi: Check krealloc return value
  x86/efi: Runtime services virtual mapping
  x86/mm/cpa: Map in an arbitrary pgd
  x86/mm/pageattr: Add last levels of error path
  x86/mm/pageattr: Add a PUD error unwinding path
  x86/mm/pageattr: Add a PTE pagetable populating function
  x86/mm/pageattr: Add a PMD pagetable populating function
  ...
2014-01-20 12:05:30 -08:00
Linus Torvalds
5d4863e4cc Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 TLB detection update from Ingo Molnar:
 "A single change that extends our TLB cache size detection+reporting
  code"

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cpu: Detect more TLB configuration
2014-01-20 12:04:45 -08:00
Linus Torvalds
2a0fede97f Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cpu, amd: Fix a shadowed variable situation
  um, x86: Fix vDSO build
  x86: Delete non-required instances of include <linux/init.h>
  x86, realmode: Pointer walk cleanups, pull out invariant use of __pa()
  x86/traps: Clean up error exception handler definitions
2014-01-20 12:03:57 -08:00
Linus Torvalds
06bc0f4a2e Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/build changes from Ingo Molnar:
 "Misc smaller improvements"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, boot: Move intcall() to the .inittext section
  x86, boot: Use .code16 instead of .code16gcc
  x86, sparse: Do not force removal of __user when calling copy_to/from_user_nocheck()
2014-01-20 12:03:21 -08:00
Linus Torvalds
4cd4156994 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/asm changes from Ingo Molnar:
 "Misc optimizations"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Slightly tweak the access_ok() C variant for better code
  x86: Replace assembly access_ok() with a C variant
  x86-64, copy_user: Use leal to produce 32-bit results
  x86-64, copy_user: Remove zero byte check before copy user buffer.
2014-01-20 11:51:00 -08:00
Linus Torvalds
1a7dbbcc8c Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/apic changes from Ingo Molnar:
 "Two main changes:

   - improve local APIC Error Status Register reporting robustness

   - add the 'disable_cpu_apicid=x' boot parameter for kexec booting"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, apic: Make disabled_cpu_apicid static read_mostly, fix typos
  x86, apic, kexec: Add disable_cpu_apicid kernel parameter
  x86/apic: Read Error Status Register correctly
2014-01-20 11:50:01 -08:00
Linus Torvalds
6c64614356 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer changes from Ingo Molnar:
  - ARM clocksource/clockevent improvements and fixes
  - generic timekeeping updates: TAI fixes/improvements, cleanups
  - Posix cpu timer cleanups and improvements
  - dynticks updates: full dynticks bugfixes, optimizations and cleanups

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  clocksource: Timer-sun5i: Switch to sched_clock_register()
  timekeeping: Remove comment that's mostly out of date
  rtc-cmos: Add an alarm disable quirk
  timekeeper: fix comment typo for tk_setup_internals()
  timekeeping: Fix missing timekeeping_update in suspend path
  timekeeping: Fix CLOCK_TAI timer/nanosleep delays
  tick/timekeeping: Call update_wall_time outside the jiffies lock
  timekeeping: Avoid possible deadlock from clock_was_set_delayed
  timekeeping: Fix potential lost pv notification of time change
  timekeeping: Fix lost updates to tai adjustment
  clocksource: sh_cmt: Add clk_prepare/unprepare support
  clocksource: bcm_kona_timer: Remove unused bcm_timer_ids
  clocksource: vt8500: Remove deprecated IRQF_DISABLED
  clocksource: tegra: Remove deprecated IRQF_DISABLED
  clocksource: misc drivers: Remove deprecated IRQF_DISABLED
  clocksource: sh_mtu2: Remove unnecessary platform_set_drvdata()
  clocksource: sh_tmu: Remove unnecessary platform_set_drvdata()
  clocksource: armada-370-xp: Enable timer divider only when needed
  clocksource: clksrc-of: Warn if no clock sources are found
  clocksource: orion: Switch to sched_clock_register()
  ...
2014-01-20 11:34:26 -08:00
Stephane Eranian
8ad9219e08 perf stat: Fix memory corruption of xyarray when cpumask is used
This patch fixes a memory corruption problem with the xyarray when the
evsel fds get closed at the end of the run_perf_stat() call.

It could be triggered with:

 # perf stat -a -e power/energy-cores/ ls

When cpumask are used by events (.e.g, RAPL or uncores) then the evsel
fds are allocated based on the actual number of CPUs monitored. That
number can be smaller than the total number of CPUs on the system.

The problem arises at the end by perf stat closes the fds twice. When
fds are closed, their entry in the xyarray are set to -1.

The first close() on the evsel is made from __run_perf_stat() and it
uses the actual number of CPUS for the event which is how the xyarray
was allocated for.

The second is from perf_evlist_close() but that one is on the total
number of CPUs in the system, so it assume the xyarray was allocated to
cover it. However it was not, and some writes corrupt memory.

The fix is in perf_evlist_close() is to first try with the evsel->cpus
if present, if not use the evlist->cpus. That fixes the problem.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1389972846-6566-3-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:09 -03:00
Stephane Eranian
de256a4e6b perf evsel: Remove duplicate member zeroing after free
No need to set evsel->fd to NULL after calling perf_evsel__free_fd(), as
this method already does that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-wu6kul8fpapr8iyqm685ewtf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:09 -03:00
Alan Cox
a761a2d8a7 perf tools: Ensure sscanf does not overrun the "mem" field
Make the parsing robust.

(perf has some other assumptions that BUFSIZE <= MAX_PATH which are
 not touched here)

Reported-by: Jackie Chang
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-g2uoiwbrpiimb63rx32qv8ne@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:08 -03:00
Stephane Eranian
8a398897ff perf stat: fix NULL pointer reference bug with event unit
This patch fixes a problem with the handling of the newly introduced
optional event unit. The following cmdline caused a segfault:

 $ perf stat -e cpu/event-0x3c/ ls

This patch fixes the problem with the default setting for alias->unit
which was eventually causing the segfault.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1389972846-6566-2-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:08 -03:00
Baruch Siach
3a46817f67 perf tools: Add support for the xtensa architecture
Tested using kernel tracepoints on a QEMU simulated environment.

Kernel support for perf depends on the patch "xtensa: enable
HAVE_PERF_EVENTS", which is scheduled for v3.14.

Hardware performance counters are not supported under xtensa yet.

Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-xtensa@linux-xtensa.org
Link: http://lkml.kernel.org/r/aafcdb22f04e2d3188d2938528939481be56b649.1389608855.git.baruch@tkos.co.il
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:08 -03:00
Stanislav Fomichev
8bac41cbfe perf session: Free cpu_map in perf_session__cpu_bitmap
This method uses a temporary struct cpu_map to figure out the cpus
present in the received cpu list in string form, but it failed to free
it after returning. Fix it.

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1390217980-22424-3-git-send-email-stfomichev@yandex-team.ru
[ Use goto + err = -1 to do the delete just once, in the normal exit path ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:08 -03:00
Stanislav Fomichev
3415d8b851 perf timechart: Fix wrong SVG height
If we call perf timechart with -p 0 arguments, it means we don't want
any tasks related data. It works, but space for tasks data is reserved
in the generated SVG. Remove this unused empty space via passing 0 as
count to the open_svg.

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1390217980-22424-2-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-20 16:19:08 -03:00
Ingo Molnar
741e3902cd x86/intel/mpx: Remove unused LWP structure
We don't support LWP yet, don't give the impression that we do:
represent the LWP state as opaque 128 bytes, the way Linux sees it
currently.

Cc: Qiaowei Ren <qiaowei.ren@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-ecarmjtfKpanpAapfck6dj6g@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-20 19:57:39 +01:00
Linus Torvalds
a0fa1dd3cd Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar:

 - Add the initial implementation of SCHED_DEADLINE support: a real-time
   scheduling policy where tasks that meet their deadlines and
   periodically execute their instances in less than their runtime quota
   see real-time scheduling and won't miss any of their deadlines.
   Tasks that go over their quota get delayed (Available to privileged
   users for now)

 - Clean up and fix preempt_enable_no_resched() abuse all around the
   tree

 - Do sched_clock() performance optimizations on x86 and elsewhere

 - Fix and improve auto-NUMA balancing

 - Fix and clean up the idle loop

 - Apply various cleanups and fixes

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
  sched: Fix __sched_setscheduler() nice test
  sched: Move SCHED_RESET_ON_FORK into attr::sched_flags
  sched: Fix up attr::sched_priority warning
  sched: Fix up scheduler syscall LTP fails
  sched: Preserve the nice level over sched_setscheduler() and sched_setparam() calls
  sched/core: Fix htmldocs warnings
  sched/deadline: No need to check p if dl_se is valid
  sched/deadline: Remove unused variables
  sched/deadline: Fix sparse static warnings
  m68k: Fix build warning in mac_via.h
  sched, thermal: Clean up preempt_enable_no_resched() abuse
  sched, net: Fixup busy_loop_us_clock()
  sched, net: Clean up preempt_enable_no_resched() abuse
  sched/preempt: Fix up missed PREEMPT_NEED_RESCHED folding
  sched/preempt, locking: Rework local_bh_{dis,en}able()
  sched/clock, x86: Avoid a runtime condition in native_sched_clock()
  sched/clock: Fix up clear_sched_clock_stable()
  sched/clock, x86: Use a static_key for sched_clock_stable
  sched/clock: Remove local_irq_disable() from the clocks
  sched/clock, x86: Rewrite cyc2ns() to avoid the need to disable IRQs
  ...
2014-01-20 10:42:08 -08:00
Linus Torvalds
9326657abe Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Add Intel RAPL energy counter support (Stephane Eranian)
   - Clean up uprobes (Oleg Nesterov)
   - Optimize ring-buffer writes (Peter Zijlstra)

  Tooling side changes, user visible:

   - 'perf diff':
     - Add column colouring improvements (Ramkumar Ramachandra)

  - 'perf kvm':
     - Add guest related improvements, including allowing to specify a
       directory with guest specific /proc information (Dongsheng Yang)
     - Add shell completion support (Ramkumar Ramachandra)
     - Add '-v' option (Dongsheng Yang)
     - Support --guestmount (Dongsheng Yang)

   - 'perf probe':
     - Support showing source code, asking for variables to be collected
       at probe time and other 'perf probe' operations that use DWARF
       information.

       This supports only binaries with debugging information at this
       time, detached debuginfo (aka debuginfo packages) support should
       come in later patches (Masami Hiramatsu)

   - 'perf record':
     - Rename --no-delay option to --no-buffering, better reflecting its
       purpose and freeing up '--delay' to take the place of
       '--initial-delay', so that 'record' and 'stat' are consistent
       (Arnaldo Carvalho de Melo)
     - Default the -t/--thread option to no inheritance (Adrian Hunter)
     - Make per-cpu mmaps the default (Adrian Hunter)

   - 'perf report':
     - Improve callchain processing performance (Frederic Weisbecker)
     - Retain bfd reference to lookup source line numbers, greatly
       optimizing, among other use cases, 'perf report -s srcline'
       (Adrian Hunter)
     - Improve callchain processing performance even more (Namhyung Kim)
     - Add a perf.data file header window in the 'perf report' TUI,
       associated with the 'i' hotkey, providing a counterpart to the
       --header option in the stdio UI (Namhyung Kim)

   - 'perf script':
     - Add an option in 'perf script' to print the source line number
       (Adrian Hunter)
     - Add --header/--header-only options to 'script' and 'report', the
       default is not tho show the header info, but as this has been the
       default for some time, leave a single line explaining how to
       obtain that information (Jiri Olsa)
     - Add options to show comm, fork, exit and mmap PERF_RECORD_ events
       (Namhyung Kim)
     - Print callchains and symbols if they exist (David Ahern)

   - 'perf timechart'
     - Add backtrace support to CPU info
     - Print pid along the name
     - Add support for CPU topology
     - Add new option --highlight'ing threads, be it by name or, if a
       numeric value is provided, that run more than given duration
       (Stanislav Fomichev)

   - 'perf top':
     - Make 'perf top -g' refer to callchains, for consistency with
       other tools (David Ahern)

   - 'perf trace':
     - Handle old kernels where the "raw_syscalls" tracepoints were
       called plain "syscalls" (David Ahern)
     - Remove thread summary coloring, by Pekka Enberg.
     - Honour -m option in 'trace', the tool was offering the option to
       set the mmap size, but wasn't using it when doing the actual mmap
       on the events file descriptors (Jiri Olsa)

   - generic:
     - Backport libtraceevent plugin support (trace-cmd repository, with
       plugins for jbd2, hrtimer, kmem, kvm, mac80211, sched_switch,
       function, xen, scsi, cfg80211 (Jiri Olsa)
     - Print session information only if --stdio is given (Namhyung Kim)

  Tooling side changes, developer visible (plumbing):

   - Improve 'perf probe' exit path, release resources (Masami
     Hiramatsu)
   - Improve libtraceevent plugins exit path, allowing the registering
     of an unregister handler to be called at exit time (Namhyung Kim)
   - Add an alias to the build test makefile (make -C tools/perf
     build-test) (Namhyung Kim)
   - Get rid of die() and friends (good riddance!) in libtraceevent
     (Namhyung Kim)
   - Fix cross build problems related to pkgconfig and CROSS_COMPILE not
     being propagated to the feature tests, leading to features being
     tested in the host and then being enabled on the target (Mark
     Rutland)
   - Improve forked workload error reporting by sending the errno in the
     signal data queueing integer field, using sigqueue and by doing the
     signal setup in the evlist methods, removing open coded equivalents
     in various tools (Arnaldo Carvalho de Melo)
   - Do more auto exit cleanup chores in the 'evlist' destructor, so
     that the tools don't have to all do that sequence (Arnaldo Carvalho
     de Melo)
   - Pack 'struct perf_session_env' and 'struct trace' (Arnaldo Carvalho
     de Melo)
   - Add test for building detached source tarballs (Arnaldo Carvalho de
     Melo)
   - Move some header files (tools/perf/ to tools/include/ to make them
     available to other tools/ dwelling codebases (Namhyung Kim)
   - Move logic to warn about kptr_restrict'ed kernels to separate
     function in 'report' (Arnaldo Carvalho de Melo)
   - Move hist browser selection code to separate function (Arnaldo
     Carvalho de Melo)
   - Move histogram entries collapsing to separate function (Arnaldo
     Carvalho de Melo)
   - Introduce evlist__for_each() & friends (Arnaldo Carvalho de Melo)
   - Automate setup of FEATURE_CHECK_(C|LD)FLAGS-all variables (Jiri
     Olsa)
   - Move arch setup into seprate Makefile (Jiri Olsa)
   - Make libtraceevent install target quieter (Jiri Olsa)
   - Make tests/make output more compact (Jiri Olsa)
   - Ignore generated files in feature-checks (Chunwei Chen)
   - Introduce pevent_filter_strerror() in libtraceevent, similar in
     purpose to libc's strerror() function (Namhyung Kim)
   - Use perf_data_file methods to write output file in 'record' and
     'inject' (Jiri Olsa)
   - Use pr_*() functions where applicable in 'report' (Namhyumg Kim)
   - Add 'machine' 'addr_location' struct to have full picture (machine,
     thread, map, symbol, addr) for a (partially) resolved address,
     reducing function signatures (Arnaldo Carvalho de Melo)
   - Reduce code duplication in the histogram entry creation/insertion
     (Arnaldo Carvalho de Melo)
   - Auto allocate annotation histogram data structures (Arnaldo
     Carvalho de Melo)
   - No need to test against NULL before calling free, also set freed
     memory in struct pointers to NULL, to help fixing use after free
     bugs (Arnaldo Carvalho de Melo)
   - Rename some struct DSO binary_type related members and methods, to
     clarify its purpose and need for differentiation (symtab_type, ie
     one is about the files .text, CFI, etc, i.e.  its binary contents,
     and the other is about where the symbol table came from (Arnaldo
     Carvalho de Melo)
   - Convert to new topic libraries, starting with an API one (sysfs,
     debugfs, etc), renaming liblk in the process (Borislav Petkov)
   - Get rid of some more panic() like error handling in libtraceevent.
     (Namhyung Kim)
   - Get rid of panic() like calls in libtraceevent (Namyung Kim)
   - Start carving out symbol parsing routines (perf, just moving
     routines to topic files in tools/lib/symbol/, tools that want to
     use it need to integrate it directly, ie no
     tools/lib/symbol/Makefile is provided (Arnaldo Carvalho de Melo)
   - Assorted refactoring patches, moving code around and adding utility
     evlist methods that will be used in the IPT patchset (Adrian
     Hunter)
   - Assorted mmap_pages handling fixes (Adrian Hunter)
   - Several man pages typo fixes (Dongsheng Yang)
   - Get rid of several die() calls in libtraceevent (Namhyung Kim)
   - Use basename() in a more robust way, to avoid problems related to
     different system library implementations for that function
     (Stephane Eranian)
   - Remove open coded management of short_name_allocated member (Adrian
     Hunter)
   - Several cleanups in the "dso" methods, constifying some parameters
     and renaming some fields to clarify its purpose (Arnaldo Carvalho
     de Melo)
   - Add per-feature check flags, fixing libunwind related build
     problems on some architectures (Jean Pihet)
   - Do not disable source line lookup just because of one failure.
     (Adrian Hunter)
   - Several 'perf kvm' man page corrections (Dongsheng Yang)
   - Correct the message in feature-libnuma checking, swowing the right
     devel package names for various distros (Dongsheng Yang)
   - Polish 'readn()' function and introduce its counterpart,
     'writen()' (Jiri Olsa)
   - Start moving timechart state from global variables to a 'perf_tool'
     derived 'timechart' struct (Arnaldo Carvalho de Melo)

  ... and lots of fixes and improvements I forgot to list"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (282 commits)
  perf tools: Remove unnecessary callchain cursor state restore on unmatch
  perf callchain: Spare double comparison of callchain first entry
  perf tools: Do proper comm override error handling
  perf symbols: Export elf_section_by_name and reuse
  perf probe: Release all dynamically allocated parameters
  perf probe: Release allocated probe_trace_event if failed
  perf tools: Add 'build-test' make target
  tools lib traceevent: Unregister handler when xen plugin is unloaded
  tools lib traceevent: Unregister handler when scsi plugin is unloaded
  tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded
  tools lib traceevent: Unregister handler when cfg80211 plugin is unloaded
  tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
  tools lib traceevent: Unregister handler when sched_switch plugin is unloaded
  tools lib traceevent: Unregister handler when kvm plugin is unloaded
  tools lib traceevent: Unregister handler when kmem plugin is unloaded
  tools lib traceevent: Unregister handler when hrtimer plugin is unloaded
  tools lib traceevent: Unregister handler when function plugin is unloaded
  tools lib traceevent: Add pevent_unregister_print_function()
  tools lib traceevent: Add pevent_unregister_event_handler()
  tools lib traceevent: fix pointer-integer size mismatch
  ...
2014-01-20 10:28:30 -08:00
Linus Torvalds
2cc3f16cad Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull IRQ changes from Ingo Molnar:
 "The only change in this cycle is a CPU hotplug related spurious
  warning fix"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/irq: Fix kbuild warning in smp_irq_move_cleanup_interrupt()
  x86/irq: Fix do_IRQ() interrupt warning for cpu hotplug retriggered irqs
2014-01-20 10:27:52 -08:00
Linus Torvalds
ad3ab302fd Merge branch 'core-stackprotector-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull strong stackprotector support from Ingo Molnar:
 "This tree adds a CONFIG_CC_STACKPROTECTOR_STRONG=y, a new, stronger
  stack canary checking method supported by the newest GCC versions (4.9
  and later).

  Here's the 'intensity comparison' between the various protection
  modes:

      - defconfig
        11430641 kernel text size
        36110 function bodies

      - defconfig + CONFIG_CC_STACKPROTECTOR_REGULAR
        11468490 kernel text size (+0.33%)
        1015 of 36110 functions are stack-protected (2.81%)

      - defconfig + CONFIG_CC_STACKPROTECTOR_STRONG via this patch
        11692790 kernel text size (+2.24%)
        7401 of 36110 functions are stack-protected (20.5%)

  the strong model comes with non-trivial costs, which is why we
  preserved the 'regular' and 'none' models as well"

* 'core-stackprotector-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG
  stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures
2014-01-20 10:26:31 -08:00
Linus Torvalds
a693c46e14 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 - add RCU torture scripts/tooling
 - static analysis improvements
 - update RCU documentation
 - miscellaneous fixes

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  rcu: Remove "extern" from function declarations in kernel/rcu/rcu.h
  rcu: Remove "extern" from function declarations in include/linux/*rcu*.h
  rcu/torture: Dynamically allocate SRCU output buffer to avoid overflow
  rcu: Don't activate RCU core on NO_HZ_FULL CPUs
  rcu: Warn on allegedly impossible rcu_read_unlock_special() from irq
  rcu: Add an RCU_INITIALIZER for global RCU-protected pointers
  rcu: Make rcu_assign_pointer's assignment volatile and type-safe
  bonding: Use RCU_INIT_POINTER() for better overhead and for sparse
  rcu: Add comment on evaluate-once properties of rcu_assign_pointer().
  rcu: Provide better diagnostics for blocking in RCU callback functions
  rcu: Improve SRCU's grace-period comments
  rcu: Fix CONFIG_RCU_FANOUT_EXACT for odd fanout/leaf values
  rcu: Fix coccinelle warnings
  rcutorture: Stop tracking FSF's postal address
  rcutorture: Move checkarg to functions.sh
  rcutorture: Flag errors and warnings with color coding
  rcutorture: Record results from repeated runs of the same test scenario
  rcutorture: Test summary at end of run with less chattiness
  rcutorture: Update comment in kvm.sh listing typical RCU trace events
  rcutorture: Add tracing-enabled version of TREE08
  ...
2014-01-20 10:25:12 -08:00
Linus Torvalds
6ffbe7d1fa Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking changes from Ingo Molnar:
 - futex performance increases: larger hashes, smarter wakeups
 - mutex debugging improvements
 - lots of SMP ordering documentation updates
 - introduce the smp_load_acquire(), smp_store_release() primitives.
   (There are WIP patches that make use of them - not yet merged)
 - lockdep micro-optimizations
 - lockdep improvement: better cover IRQ contexts
 - liblockdep at last. We'll continue to monitor how useful this is

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  futexes: Fix futex_hashsize initialization
  arch: Re-sort some Kbuild files to hopefully help avoid some conflicts
  futexes: Avoid taking the hb->lock if there's nothing to wake up
  futexes: Document multiprocessor ordering guarantees
  futexes: Increase hash table size for better performance
  futexes: Clean up various details
  arch: Introduce smp_load_acquire(), smp_store_release()
  arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h
  arch: Move smp_mb__{before,after}_atomic_{inc,dec}.h into asm/atomic.h
  locking/doc: Rename LOCK/UNLOCK to ACQUIRE/RELEASE
  mutexes: Give more informative mutex warning in the !lock->owner case
  powerpc: Full barrier for smp_mb__after_unlock_lock()
  rcu: Apply smp_mb__after_unlock_lock() to preserve grace periods
  Documentation/memory-barriers.txt: Downgrade UNLOCK+BLOCK
  locking: Add an smp_mb__after_unlock_lock() for UNLOCK+BLOCK barrier
  Documentation/memory-barriers.txt: Document ACCESS_ONCE()
  Documentation/memory-barriers.txt: Prohibit speculative writes
  Documentation/memory-barriers.txt: Add long atomic examples to memory-barriers.txt
  Documentation/memory-barriers.txt: Add needed ACCESS_ONCE() calls to memory-barriers.txt
  Revert "smp/cpumask: Make CONFIG_CPUMASK_OFFSTACK=y usable without debug dependency"
  ...
2014-01-20 10:23:08 -08:00
Linus Torvalds
897aea303f Merge branch 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core debug changes from Ingo Molnar:
 "Currently there are two methods to set the panic_timeout: via
  'panic=X' boot commandline option, or via /proc/sys/kernel/panic.

  This tree adds a third panic_timeout configuration method:
  configuration via Kconfig, via CONFIG_PANIC_TIMEOUT=X - useful to
  distros that generally want their kernel defaults to come with the
  .config.

  CONFIG_PANIC_TIMEOUT defaults to 0, which was the previous default
  value of panic_timeout.

  Doing that unearthed a few arch trickeries regarding arch-special
  panic_timeout values and related complications - hopefully all
  resolved to the satisfaction of everyone"

* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  powerpc: Clean up panic_timeout usage
  MIPS: Remove panic_timeout settings
  panic: Make panic_timeout configurable
2014-01-20 10:22:12 -08:00
Linus Torvalds
9451ee2d17 Here's some basic updates to ktest.pl. They include:
o Add config to modify the signal to terminate console
  o Update to documentation (missing some config options)
  o Add KERNEL_VERSION variable to use for other configs
  o Add '=~' to let configs eval other configs
  o Add BISECT_TRIES to run multiple tests per git bisect good
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Merge tag 'ktest-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest updates from Steven Rostedt:
 "Here's some basic updates to ktest.pl.  They include:

   - add config to modify the signal to terminate console
   - update to documentation (missing some config options)
   - add KERNEL_VERSION variable to use for other configs
   - add '=~' to let configs eval other configs
   - add BISECT_TRIES to run multiple tests per git bisect good"

* tag 'ktest-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Add BISECT_TRIES to bisect test
  ktest: Add eval '=~' command to modify variables in config file
  ktest: Add special variable ${KERNEL_VERSION}
  ktest: Add documentation of CLOSE_CONSOLE_SIGNAL
  ktest: Make the signal to terminate the console configurable
2014-01-20 09:39:18 -08:00
Linus Torvalds
edde1fb8c4 While debugging the problem with localmodconfig and the ALSA codec
modules all being set, I discovered a small bug in the dependency
 logic.
 
 If a config has a dependency based on its setting value, localmodcondig
 misses it.
 
 For example:
 
 config FOO
     default y if BAR || ZOO
 
 If FOO is needed for a module and is set to '=m', and so are BAR or ZOO,
 localmodconfig will not see that BAR or ZOO are also needed for the foo
 module, and will incorrectly disable them.
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Merge tag 'localmodconfig-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig

Pull localmodconfig update from Steven Rostedt:
 "While debugging the problem with localmodconfig and the ALSA codec
  modules all being set, I discovered a small bug in the dependency
  logic.

  If a config has a dependency based on its setting value,
  localmodcondig misses it.

  For example:

    config FOO
        default y if BAR || ZOO

  If FOO is needed for a module and is set to '=m', and so are BAR or
  ZOO, localmodconfig will not see that BAR or ZOO are also needed for
  the foo module, and will incorrectly disable them"

* tag 'localmodconfig-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig:
  localmodconfig: Add config depends by default settings
2014-01-20 09:37:38 -08:00
Linus Torvalds
561a60f025 Add support for Kaveri CPUs to k10temp driver. Add support for S12x0 to
coretemp driver.
 Cleanup and minor fixes in several drivers. Notable are 'Do not return -EAGAIN
 for low temperatures' to coretemp and 'Re-enable logical device mapping for
 NCT6791 during resume' to nct6775. Both will be sent to -stable, but only
 after some time in mainline.
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Add support for Kaveri CPUs to k10temp driver.  Add support for S12x0
  to coretemp driver.

  Cleanup and minor fixes in several drivers.  Notable are 'Do not
  return -EAGAIN for low temperatures' to coretemp and 'Re-enable
  logical device mapping for NCT6791 during resume' to nct6775.  Both
  will be sent to -stable, but only after some time in mainline"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k10temp) Add support for Kaveri CPUs
  hwmon: (sht15) add include guard
  hwmon: (max197) add include guard
  hwmon: (nct6775) Re-enable logical device mapping for NCT6791 during resume
  hwmon: (s3c) Trivial cleanup in hwmon-s3c.h
  hwmon: (coretemp) Do not return -EAGAIN for low temperatures
  hwmon: (da9052) Fix adc to voltage calculation
  hwmon: (coretemp) Refine TjMax detection
  hwmon: (coretemp) Add PCI device ID for CE41x0 CPUs
  hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessary
  hwmon: remove DEFINE_PCI_DEVICE_TABLE macro
2014-01-20 09:34:20 -08:00
Linus Torvalds
db4fcb45a4 Nobody has been maintaining xen in ia64 for a long time.
Rip it all out so people do not waste time making updates
 to broken/dead code.
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Merge tag 'please-pull-rm_xen' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 Xen removal from Tony Luck:
 "Nobody has been maintaining xen in ia64 for a long time.  Rip it all
  out so people do not waste time making updates to broken/dead code"

* tag 'please-pull-rm_xen' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64/xen: Remove Xen support for ia64
2014-01-20 09:33:40 -08:00
Linus Torvalds
09854dde94 * mpc85xx PCIe error interrupt support
* misc small enhancements/fixes all over the place.
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Merge tag 'edac_for_3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:
 - mpc85xx PCIe error interrupt support
 - misc small enhancements/fixes all over the place.

* tag 'edac_for_3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC: Don't try to cancel workqueue when it's never setup
  e752x_edac: Fix pci_dev usage count
  sb_edac: Mark get_mci_for_node_id as static
  EDAC: Mark edac_create_debug_nodes as static
  amd64_edac: Remove "amd64" prefix from static functions
  amd64_edac: Simplify code around decode_bus_error
  amd64_edac: Mark amd64_decode_bus_error as static
  EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro
  amd64_edac: Fix condition to verify max channels allowed for F15 M30h
  edac/85xx: Add PCIe error interrupt edac support
2014-01-20 09:26:15 -08:00
Linus Torvalds
a1a3b3efc4 Metag architecture changes for v3.14
- A few cleanups and minor bug fixes.
 - Kill SMP single function call IPI.
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Merge tag 'metag-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull Metag architecture changes from James Hogan:
 - A few cleanups and minor bug fixes.
 - Kill SMP single function call IPI.

* tag 'metag-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag/smp: Make boot_secondary() static
  metag: topology: export 'cpu_core_map'
  smp, metag: kill SMP single function call interrupt
  metag: smp: don't set irq regs in do_IPI()
  metag: dma: remove dead code in dma_alloc_init()
2014-01-20 09:25:32 -08:00
Linus Torvalds
8cf7a16ee9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
 - Zorro bus cleanups and UAPI revival
 - Bootinfo cleanups and UAPI revival
 - Kexec support
 - Memory size reductions and bug fixes for multi-platform kernels
 - Polled interrupt support for Atari EtherNAT, EtherNEC and NetUSBee
 - Machine-specific random_get_entropy()
 - Defconfig updates and cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (46 commits)
  m68k/mac: Make SCC reset work more reliably
  m68k/irq - Use polled IRQ flag for MFP timer cascaded interrupts
  m68k: Update defconfigs for v3.13-rc1
  m68k/defconfig: Enable EARLY_PRINTK
  m68k/mm: kmap spelling/grammar fixes
  m68k: Convert arch/m68k/kernel/traps.c to pr_*()
  m68k: Convert arch/m68k/mm/fault.c to pr_*()
  m68k/mm: Check for mm != NULL in do_page_fault() debug code
  m68k/defconfig: Disable /sbin/hotplug fork-bomb by default
  m68k/atari: Hide RTC_PORT() macro from rtc-cmos
  m68k/amiga,atari: Fix specifying multiple debug= parameters
  m68k/defconfig: Use ext4 for ext2/ext3 file systems
  m68k: Add support to export bootinfo in procfs
  m68k: Add kexec support
  m68k/mac: Mark Mac IIsi ADB driver BROKEN
  m68k/amiga: Provide mach_random_get_entropy()
  m68k: Add infrastructure for machine-specific random_get_entropy()
  m68k/atari: Call paging_init() before nf_init()
  m68k: Remove superfluous inclusions of <asm/bootinfo.h>
  m68k/UAPI: Use proper types (endianness/size) in <asm/bootinfo*.h>
  ...
2014-01-20 09:24:31 -08:00
Linus Torvalds
f479c01c8e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
 "The bulk of the s390 updates for v3.14.

  New features are the perf support for the CPU-Measurement Sample
  Facility and the EP11 support for the crypto cards.  And the normal
  cleanups and bug-fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (44 commits)
  s390/cpum_sf: fix printk format warnings
  s390: Fix misspellings using 'codespell' tool
  s390/qdio: bridgeport support - CHSC part
  s390: delete new instances of __cpuinit usage
  s390/compat: fix PSW32_USER_BITS definition
  s390/zcrypt: add support for EP11 coprocessor cards
  s390/mm: optimize randomize_et_dyn for !PF_RANDOMIZE
  s390: use IS_ENABLED to check if a CONFIG is set to y or m
  s390/cio: use device_lock to synchronize calls to the ccwgroup driver
  s390/cio: use device_lock to synchronize calls to the ccw driver
  s390/cio: fix unlocked access of online member
  s390/cpum_sf: Add flag to process full SDBs only
  s390/cpum_sf: Add raw data sampling to support the diagnostic-sampling function
  s390/cpum_sf: Filter perf events based event->attr.exclude_* settings
  s390/cpum_sf: Detect KVM guest samples
  s390/cpum_sf: Add helper to read TOD from trailer entries
  s390/cpum_sf: Atomically reset trailer entry fields of sample-data-blocks
  s390/cpum_sf: Dynamically extend the sampling buffer if overflows occur
  s390/pci: reenable per default
  s390/pci/dma: fix accounting of allocated_pages
  ...
2014-01-20 09:23:31 -08:00
Linus Torvalds
d8ec26d7f8 Linux 3.13 2014-01-19 18:40:07 -08:00
Ilia Mirkin
72de182362 drm/nouveau/mxm: fix null deref on load
Since commit 61b365a505 ("drm/nouveau: populate master subdev pointer
only when fully constructed"), the nouveau_mxm(bios) call will return
NULL, since it's still being called from the constructor.  Instead, pass
the mxm pointer via the unused data field.

See https://bugs.freedesktop.org/show_bug.cgi?id=73791

Reported-by: Andreas Reis <andreas.reis@gmail.com>
Tested-by: Andreas Reis <andreas.reis@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-19 18:28:30 -08:00
Linus Torvalds
4d93540299 Last-minute ACPI fix for 3.13
This reverts a commit that causes the Alan Cox' ASUS T100TA to "crash
 and burn" during boot if the Baytrail pinctrl driver is compiled in.
 
 /
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Merge tag 'acpi-3.13-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull last-minute ACPI fix from Rafael Wysocki:
 "This reverts a commit that causes the Alan Cox' ASUS T100TA to "crash
  and burn" during boot if the Baytrail pinctrl driver is compiled in"

* tag 'acpi-3.13-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs"
2014-01-19 17:18:13 -08:00
Linus Torvalds
16ec54ad15 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:

 - an s2ram related fix on AMD systems

 - a perf fault handling bug that is relatively old but which has become
   much easier to trigger in v3.13 after commit e00b12e64b ("perf/x86:
   Further optimize copy_from_user_nmi()")

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10h
  x86, mm, perf: Allow recursive faults from interrupts
2014-01-19 13:06:51 -08:00
Stephen Boyd
00e2bcd6d3 clocksource: Timer-sun5i: Switch to sched_clock_register()
The 32-bit sched_clock() interface supports 64 bits since
3.13-rc1. Upgrade to the 64-bit function to allow us to remove
the 32-bit registration interface.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1389922686-6249-1-git-send-email-sboyd@codeaurora.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-19 13:23:23 +01:00
Ingo Molnar
45e6af0636 Developer stuff:
. Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)
 
 . Fix comm override error handling (Frederic Weisbecker)
 
 . Improve 'perf probe' exit path, release resources (Masami Hiramatsu)
 
 . Improve libtraceevent plugins exit path, allowing the registering of
   an unregister handler to be called at exit time (Namhyung Kim)
 
 . Add an alias to the build test makefile (make -C tools/perf build-test)
   (Namhyung Kim)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf improvements and fixes from Arnaldo Carvalho de Melo:

Infrastructure changes:

 * Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)

 * Fix comm override error handling (Frederic Weisbecker)

 * Improve 'perf probe' exit path, release resources (Masami Hiramatsu)

 * Improve libtraceevent plugins exit path, allowing the registering of
   an unregister handler to be called at exit time (Namhyung Kim)

 * Add an alias to the build test makefile (make -C tools/perf build-test)
   (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-19 13:09:01 +01:00
Finn Thain
56931d7369 m68k/mac: Make SCC reset work more reliably
For SCC initialization we cannot assume that the control register is in
the correct state to accept a register pointer. So first read from the
control register in order to "sync" up.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-01-19 11:53:22 +01:00
Steven Rostedt (Red Hat)
961d9cacee ktest: Add BISECT_TRIES to bisect test
For those cases that it takes several tries to hit a bug, it would be
useful for ktest.pl to try a test multiple times before it considers
the test as a pass. To accomplish this, BISECT_TRIES ktest config
option has been added. It is default to one, as most of the time a
bisect only needs to try a test once. But the user can now up this
to make ktest run a given test multiple times. The first failure
that is detected will set a bisect bad. It only repeats on success.

Note, as with all race bugs, there's no guarantee that if it succeeds,
it is really a good bisect. But it helps in case the bug is somewhat
reliable.

You can set BISECT_TRIES to zero, and all tests will be considered
good, unless you also set BISECT_MANUAL.

Suggested-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-01-18 19:52:13 -05:00