Supporting decoding the ioctl 'request' parameter needs more work to
properly support more architectures, the current approach doesn't work
on at least powerpc and sparc, as reported by Ben Hutchings in
http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk .
Work around that by making it to be ifdefed for the architectures known
to work with the current, limited approach, i386 and x86_64 till better
code is written.
Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> 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> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
On ARM machines pre-dating the Cortex-A15 this doesn't work, as these
machines don't support .exclude_kernel. So starting with 3.12 "perf
list" does not report any hardware events at all on older machines (seen
on Rasp-Pi, Pandaboard, Beagleboard, etc).
This version of the patch makes changes suggested by Namhyung Kim to
check for EACCESS and retry (instead of just dropping the
exclude_kernel) so we can properly handle machines where
/proc/sys/kernel/perf_event_paranoid is set to 2.
Reported-by: Chad Paradis <chad.paradis@umit.maine.edu> Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Chad Paradis <chad.paradis@umit.maine.edu> Cc: Ingo Molnar <mingo@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/alpine.DEB.2.10.1312301536150.28814@vincent-weaver-1.um.maine.edu Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 29 Jan 2014 14:14:43 +0000 (16:14 +0200)]
perf tools: Adjust kallsyms for relocated kernel
If the kernel is relocated at boot time, kallsyms will not match data
recorded previously.
That does not matter for modules because they are corrected anyway. It
also does not matter if vmlinux is being used for symbols. But if perf
tools has only kallsyms then the symbols will not match.
Fix by applying the delta gained by comparing the old and current
addresses of the relocation reference symbol.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1391004884-10334-9-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 29 Jan 2014 14:14:41 +0000 (16:14 +0200)]
perf symbols: Prevent the use of kcore if the kernel has moved
Use of kcore is predicated upon it matching the recorded data. If the
kernel has been relocated at boot time (i.e. since the data was
recorded) then do not use kcore.
Note that it is possible to make a copy of kcore at the time the data is
recorded using 'perf buildid-cache'. Then the perf tools will use the
copy because it does match the data.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1391004884-10334-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 29 Jan 2014 14:14:40 +0000 (16:14 +0200)]
perf record: Get ref_reloc_sym from kernel map
Now that ref_reloc_sym is set up when the kernel map is created,
'perf record' does not need to pass the symbol names to
perf_event__synthesize_kernel_mmap() which can read the values needed
from ref_reloc_sym directly.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1391004884-10334-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 29 Jan 2014 14:14:39 +0000 (16:14 +0200)]
perf machine: Set up ref_reloc_sym in machine__create_kernel_maps()
The ref_reloc_sym is always needed for the kernel map in order to check
for relocation. Consequently set it up when the kernel map is created.
Otherwise it was only being set up by 'perf record'.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1391004884-10334-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 29 Jan 2014 14:14:37 +0000 (16:14 +0200)]
perf tools: Add kallsyms__get_function_start()
Separate out the logic used to find the start address of the reference
symbol used to track kernel relocation. kallsyms__get_function_start()
is used in subsequent patches.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1391004884-10334-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Francesco Fusco [Mon, 27 Jan 2014 13:39:13 +0000 (14:39 +0100)]
perf tools: Fix include for non x86 architectures
Commit 71ae8aac ("lib: introduce arch optimized hash library") added an
include to <linux/hash.h> for setting up an architecture specific fast
hash.
Since perf includes directly the non-uapi kernel header, it cannot find
<asm/hash.h> on non-x86 and thus prevents perf to be compiled on every
architecture other than x86.
The problem is the inclusion of <asm/hash.h> in hash.h that results in
the following error originating from util/evlist.c:
fatal error: asm/hash.h: No such file or directory
This commit simply adds an empty <asm/hash.h> stub/file to fix the
compile issue on non-x86 architectures.
As perf does not use any of these new functions, it fixes the
compilation and therefore seems to be the most appropriate solution to
go with.
Masami Hiramatsu [Thu, 23 Jan 2014 02:29:50 +0000 (02:29 +0000)]
perf symbols: Load map before using map->map_ip()
In map_groups__find_symbol() map->map_ip is used without ensuring the
map is loaded. Then the address passed to map->map_ip isn't mapped at
the first time.
E.g. below code always fails to get a symbol at the first call;
addr = /* Somewhere in the kernel text */
symbol_conf.try_vmlinux_path = true;
symbol__init();
host_machine = machine__new_host();
sym = machine__find_kernel_function(host_machine,
addr, NULL, NULL);
/* Note that machine__find_kernel_function calls
map_groups__find_symbol */
This ensures it by calling map__load before using it in
map_groups__find_symbol().
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>
Namhyung Kim [Thu, 16 Jan 2014 01:49:31 +0000 (10:49 +0900)]
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>
Linus Torvalds [Mon, 20 Jan 2014 23:12:49 +0000 (15:12 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 22:46:32 +0000 (14:46 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 22:45:50 +0000 (14:45 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 20:11:41 +0000 (12:11 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 20:10:27 +0000 (12:10 -0800)]
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
* '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
Linus Torvalds [Mon, 20 Jan 2014 20:05:30 +0000 (12:05 -0800)]
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
...
Linus Torvalds [Mon, 20 Jan 2014 20:03:57 +0000 (12:03 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 20:03:21 +0000 (12:03 -0800)]
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()
Linus Torvalds [Mon, 20 Jan 2014 19:51:00 +0000 (11:51 -0800)]
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.
Linus Torvalds [Mon, 20 Jan 2014 19:34:26 +0000 (11:34 -0800)]
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()
...
Stephane Eranian [Fri, 17 Jan 2014 15:34:06 +0000 (16:34 +0100)]
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>
Stephane Eranian [Mon, 20 Jan 2014 19:15:13 +0000 (16:15 -0300)]
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>
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>
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>
Linus Torvalds [Mon, 20 Jan 2014 18:42:08 +0000 (10:42 -0800)]
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
...
- '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
...
Linus Torvalds [Mon, 20 Jan 2014 18:27:52 +0000 (10:27 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 18:26:31 +0000 (10:26 -0800)]
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
* '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
...
Linus Torvalds [Mon, 20 Jan 2014 18:23:08 +0000 (10:23 -0800)]
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"
...
Linus Torvalds [Mon, 20 Jan 2014 18:22:12 +0000 (10:22 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:39:18 +0000 (09:39 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:37:38 +0000 (09:37 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:34:20 +0000 (09:34 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:33:40 +0000 (09:33 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:26:15 +0000 (09:26 -0800)]
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
Linus Torvalds [Mon, 20 Jan 2014 17:25:32 +0000 (09:25 -0800)]
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()
Linus Torvalds [Mon, 20 Jan 2014 17:24:31 +0000 (09:24 -0800)]
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>
...
Linus Torvalds [Mon, 20 Jan 2014 17:23:31 +0000 (09:23 -0800)]
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
...
Ilia Mirkin [Sun, 19 Jan 2014 15:30:32 +0000 (10:30 -0500)]
drm/nouveau/mxm: fix null deref on load
Since commit 61b365a505d6 ("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>
Linus Torvalds [Mon, 20 Jan 2014 01:18:13 +0000 (17:18 -0800)]
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"
Linus Torvalds [Sun, 19 Jan 2014 21:06:51 +0000 (13:06 -0800)]
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 e00b12e64be9 ("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
Stephen Boyd [Fri, 17 Jan 2014 01:38:06 +0000 (17:38 -0800)]
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>
Finn Thain [Sun, 12 Jan 2014 13:56:38 +0000 (00:56 +1100)]
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>
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>
Revert "ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs"
This reverts commit f6308b36c411 (ACPI: Add BayTrail SoC GPIO and LPSS
ACPI IDs), because it causes the Alan Cox' ASUS T100TA to "crash and
burn" during boot if the Baytrail pinctrl driver is compiled in.
Fixes: f6308b36c411 (ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs) Reported-by: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> Requested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
1) The value choosen for the new SO_MAX_PACING_RATE socket option on
parisc was very poorly choosen, let's fix it while we still can.
From Eric Dumazet.
2) Our generic reciprocal divide was found to handle some edge cases
incorrectly, part of this is encoded into the BPF as deep as the JIT
engines themselves. Just use a real divide throughout for now.
From Eric Dumazet.
3) Because the initial lookup is lockless, the TCP metrics engine can
end up creating two entries for the same lookup key. Fix this by
doing a second lookup under the lock before we actually create the
new entry. From Christoph Paasch.
4) Fix scatter-gather list init in usbnet driver, from Bjørn Mork.
5) Fix unintended 32-bit truncation in cxgb4 driver's bit shifting.
From Dan Carpenter.
6) Netlink socket dumping uses the wrong socket state for timewait
sockets. Fix from Neal Cardwell.
7) Fix netlink memory leak in ieee802154_add_iface(), from Christian
Engelmayer.
8) Multicast forwarding in ipv4 can overflow the per-rule reference
counts, causing all multicast traffic to cease. Fix from Hannes
Frederic Sowa.
9) via-rhine needs to stop all TX queues when it resets the device,
from Richard Weinberger.
10) Fix RDS per-cpu accesses broken by the this_cpu_* conversions. From
Gerald Schaefer.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructions
parisc: fix SO_MAX_PACING_RATE typo
ipv6: simplify detection of first operational link-local address on interface
tcp: metrics: Avoid duplicate entries with the same destination-IP
net: rds: fix per-cpu helper usage
e1000e: Fix compilation warning when !CONFIG_PM_SLEEP
bpf: do not use reciprocal divide
be2net: add dma_mapping_error() check for dma_map_page()
bnx2x: Don't release PCI bars on shutdown
net,via-rhine: Fix tx_timeout handling
batman-adv: fix batman-adv header overhead calculation
qlge: Fix vlan netdev features.
net: avoid reference counter overflows on fib_rules in multicast forwarding
dm9601: add USB IDs for new dm96xx variants
MAINTAINERS: add virtio-dev ML for virtio
ieee802154: Fix memory leak in ieee802154_add_iface()
net: usbnet: fix SG initialisation
inet_diag: fix inet_diag_dump_icsk() to use correct state for timewait sockets
cxgb4: silence shift wrapping static checker warning
Heiko Carstens [Fri, 17 Jan 2014 08:37:15 +0000 (09:37 +0100)]
s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructions
The s390 bpf jit compiler emits the signed divide instructions "dr" and "d"
for unsigned divisions.
This can cause problems: the dividend will be zero extended to a 64 bit value
and the divisor is the 32 bit signed value as specified A or X accumulator,
even though A and X are supposed to be treated as unsigned values.
The divide instrunctions will generate an exception if the result cannot be
expressed with a 32 bit signed value.
This is the case if e.g. the dividend is 0xffffffff and the divisor either 1
or also 0xffffffff (signed: -1).
To avoid all these issues simply use unsigned divide instructions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 16 Jan 2014 19:15:12 +0000 (11:15 -0800)]
parisc: fix SO_MAX_PACING_RATE typo
SO_MAX_PACING_RATE definition on parisc got a typo.
Its not too late to fix it, before 3.13 is official.
Fixes: 62748f32d501 ("net: introduce SO_MAX_PACING_RATE") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: simplify detection of first operational link-local address on interface
In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for
dad-completed ipv6 addresses") I build the detection of the first
operational link-local address much to complex. Additionally this code
now has a race condition.
Replace it with a much simpler variant, which just scans the address
list when duplicate address detection completes, to check if this is
the first valid link local address and send RS and MLD reports then.
Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Christoph Paasch [Thu, 16 Jan 2014 19:01:21 +0000 (20:01 +0100)]
tcp: metrics: Avoid duplicate entries with the same destination-IP
Because the tcp-metrics is an RCU-list, it may be that two
soft-interrupts are inside __tcp_get_metrics() for the same
destination-IP at the same time. If this destination-IP is not yet part of
the tcp-metrics, both soft-interrupts will end up in tcpm_new and create
a new entry for this IP.
So, we will have two tcp-metrics with the same destination-IP in the list.
This patch checks twice __tcp_get_metrics(). First without holding the
lock, then while holding the lock. The second one is there to confirm
that the entry has not been added by another soft-irq while waiting for
the spin-lock.
Fixes: 51c5d0c4b169b (tcp: Maintain dynamic metrics in local cache.) Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Gerald Schaefer [Thu, 16 Jan 2014 15:54:48 +0000 (16:54 +0100)]
net: rds: fix per-cpu helper usage
commit ae4b46e9d "net: rds: use this_cpu_* per-cpu helper" broke per-cpu
handling for rds. chpfirst is the result of __this_cpu_read(), so it is
an absolute pointer and not __percpu. Therefore, __this_cpu_write()
should not operate on chpfirst, but rather on cache->percpu->first, just
like __this_cpu_read() did before.
Linus Torvalds [Sat, 18 Jan 2014 01:29:36 +0000 (17:29 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace fixes from Eric Biederman:
"This is a set of 3 regression fixes.
This fixes /proc/mounts when using "ip netns add <netns>" to display
the actual mount point.
This fixes a regression in clone that broke lxc-attach.
This fixes a regression in the permission checks for mounting /proc
that made proc unmountable if binfmt_misc was in use. Oops.
My apologies for sending this pull request so late. Al Viro gave
interesting review comments about the d_path fix that I wanted to
address in detail before I sent this pull request. Unfortunately a
bad round of colds kept from addressing that in detail until today.
The executive summary of the review was:
Al: Is patching d_path really sufficient?
The prepend_path, d_path, d_absolute_path, and __d_path family of
functions is a really mess.
Me: Yes, patching d_path is really sufficient. Yes, the code is mess.
No it is not appropriate to rewrite all of d_path for a regression
that has existed for entirely too long already, when a two line
change will do"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
vfs: Fix a regression in mounting proc
fork: Allow CLONE_PARENT after setns(CLONE_NEWPID)
vfs: In d_path don't call d_dname on a mount point
perf tools: Remove unnecessary callchain cursor state restore on unmatch
If a new callchain branch doesn't match a single entry of the node that
it is given against comparison in append_chain(), then the cursor is
expected to be at the same position as it was before the comparison
loop.
As such, there is no need to restore the cursor position on exit in case
of non matching branches.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1389713836-13375-4-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
perf callchain: Spare double comparison of callchain first entry
When a new callchain child branch matches an existing one in the rbtree,
the comparison of its first entry is performed twice:
1) From append_chain_children() on branch lookup
2) If 1) reports a match, append_chain() then compares all entries of
the new branch against the matching node in the rbtree, and this
comparison includes the first entry of the new branch again.
Lets shortcut this by performing the whole comparison only from
append_chain() which then returns the result of the comparison between
the first entry of the new branch and the iterating node in the rbtree.
If the first entry matches, the lookup on the current level of siblings
stops and propagates to the children of the matching nodes.
This results in less comparisons performed by the CPU.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1389713836-13375-3-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
David S. Miller [Fri, 17 Jan 2014 01:16:43 +0000 (17:16 -0800)]
Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
Included change:
- properly compute the batman-adv header overhead. Such
result is later used to initialize the hard_header_len
member of the soft-interface netdev object
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 17 Jan 2014 00:33:27 +0000 (11:33 +1100)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Revert "arm64: Fix memory shareability attribute for ioremap_wc/cache"
We noticed that it breaks ioremap (and earlyprintk) with 64K page
configuration"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
Revert "arm64: Fix memory shareability attribute for ioremap_wc/cache"
Hugh Dickins [Thu, 16 Jan 2014 23:26:48 +0000 (15:26 -0800)]
percpu_counter: unbreak __percpu_counter_add()
Commit 74e72f894d56 ("lib/percpu_counter.c: fix __percpu_counter_add()")
looked very plausible, but its arithmetic was badly wrong: obvious once
you see the fix, but maddening to get there from the weird tmpfs ENOSPCs
Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Ming Lei <tom.leiming@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Shaohua Li <shli@fusionio.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Fan Du <fan.du@windriver.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mika Westerberg [Thu, 16 Jan 2014 12:39:39 +0000 (14:39 +0200)]
e1000e: Fix compilation warning when !CONFIG_PM_SLEEP
Commit 7509963c703b (e1000e: Fix a compile flag mis-match for
suspend/resume) moved suspend and resume hooks to be available when
CONFIG_PM is set. However, it can be set even if CONFIG_PM_SLEEP is not set
causing following warnings to be emitted:
drivers/net/ethernet/intel/e1000e/netdev.c:6178:12: warning:
‘e1000_suspend’ defined but not used [-Wunused-function]
drivers/net/ethernet/intel/e1000e/netdev.c:6185:12: warning:
‘e1000_resume’ defined but not used [-Wunused-function]
To fix this make the hooks to be available only when CONFIG_PM_SLEEP is set
and remove CONFIG_PM wrapping from driver ops because this is already
handled by SET_SYSTEM_SLEEP_PM_OPS() and SET_RUNTIME_PM_OPS().
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Dave Ertman <davidx.m.ertman@intel.com> Cc: Aaron Brown <aaron.f.brown@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Cohen [Thu, 16 Jan 2014 23:07:03 +0000 (15:07 -0800)]
x86, intel-mid: Check get_gpio_by_name() error code on platform code
This patch does cleanup on all intel mid platform code that uses
gpio_get_by_name() function. From now on they should check for any error
code instead of only hardcoded -1.
David Cohen [Thu, 16 Jan 2014 23:07:02 +0000 (15:07 -0800)]
x86, intel-mid: sfi_handle_*_dev() should check for pdata error code
When Intel MID finds a match between SFI table from FW and registered
SFI devices, it will always register a device regardless the platform
code was successful or not.
This patch adds an extra option for platform code to return error code
and abort device registration on SFI table parsing.
This patch does not contain any functional changes for current intel
mid platform code.
perf tools: Do proper comm override error handling
The comm overriding API ignores memory allocation failures by silently
keeping the previous and out of date comm.
As a result, the user may get buggy events without ever being notified
about the problem and its source.
Lets start to fix this by propagating the error from the API. Not all
callers may be doing proper error handling on comm set yet but this is
the first step toward it.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1389713836-13375-2-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Masami Hiramatsu [Thu, 16 Jan 2014 09:39:49 +0000 (09:39 +0000)]
perf symbols: Export elf_section_by_name and reuse
Remove duplicated elf_section_by_name() functions from unwind.c and
probe-event.c and use one exported elf_section_by_name() instance
defined in symbol-elf.c.
Note that this also moves get_text_start_address() to merge
HAVE_DWARF_SUPPORT defined area.
Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: "David A. Long" <dave.long@linaro.org> Cc: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: yrl.pp-manager.tt@hitachi.com Link: http://lkml.kernel.org/r/20140116093949.24403.38093.stgit@kbuild-fedora.novalocal Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Masami Hiramatsu [Thu, 16 Jan 2014 09:39:47 +0000 (09:39 +0000)]
perf probe: Release all dynamically allocated parameters
To fix a memory leak, release all dynamically allocated
options/parameters in params data structure. This also
introduces/exports some init/clear routines.
Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: "David A. Long" <dave.long@linaro.org> Cc: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: yrl.pp-manager.tt@hitachi.com Link: http://lkml.kernel.org/r/20140116093947.24403.80118.stgit@kbuild-fedora.novalocal Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Namhyung Kim [Thu, 16 Jan 2014 01:52:53 +0000 (10:52 +0900)]
perf tools: Add 'build-test' make target
Currently various build test can be performed using a Makefile named
tests/make, so one needs to remember and specify it with -f option on
command line.
Add the 'build-test' target in the main Makefile as a shortcut.
Signed-off-by: Namhyung Kim <namhyung@kernel.org> 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/1389837173-3632-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>