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Commit Graph

495644 Commits

Author SHA1 Message Date
Namhyung Kim
4ac30cf74b perf tools: Do not use __perf_session__process_events() directly
It's only used for perf record to process build-id because its file size
it's not fixed at this time due to remaining header features.

However data offset and size is available so that we can use the
perf_session__process_events() once we set the file size as the current
offset like for now.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1422518843-25818-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29 16:36:32 -03:00
Namhyung Kim
f1f13af99a perf callchain: Cache eh/debug frame offset for dwarf unwind
When libunwind tries to resolve callchains it needs to know the offset
of .eh_frame_hdr or .debug_frame to access the dso.

Since it will always return the same result for a given DSO, just cache
the result as an optimization.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1422518843-25818-41-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29 16:20:42 -03:00
Vineet Gupta
459a3df76c perf tools: Provide stub for missing pthread_attr_setaffinity_np
uClibc Linuxthreads.old doesn't support the pthread_attr_setaffinity_np()
functioo:

   ----------------->8-----------------------
  CC       bench/futex-hash.o
  CC       bench/futex-wake.o
bench/futex-hash.c: In function 'bench_futex_hash':
bench/futex-hash.c:161:3: error: implicit declaration of function
'pthread_attr_setaffinity_np' [-Werror=implicit-function-declaration]
   ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cpu_set_t),
&cpu);
   ^
bench/futex-hash.c:161:3: error: nested extern declaration of
'pthread_attr_setaffinity_np' [-Werror=nested-externs]
   ----------------->8-----------------------

So introduce a test to check that and if not available provide a stub.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421156604-30603-6-git-send-email-vgupta@synopsys.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-28 12:43:32 -03:00
Vineet Gupta
8d9cbd8f87 perf evsel: Don't rely on malloc working for sz 0
When running perf on ARC (uClibc based userspace), ran into this issue
   ------------->8----------------
	[ARCLinux]$ ./perf record ls
	bin             etc             perf            sys
	debug           init            perf.data       tmp
	[ perf record: Woken up 1 times to write data ]
	[ perf record: Captured and wrote 0.001 MB perf.data (~24 samples) ]

	[ARCLinux]$ ./perf report
	incompatible file format (rerun with -v to learn more)
   ------------->8----------------

The problem happens in the following call stack when zalloc is called
with size zero

glibc default / uClibc with MALLOC_GLIBC_COMPAT are OK, but not if that
config option is not enabled.

  cmd_report
     perf_session__new
	perf_session__open
	    perf_session__read_header
		read_attr(fd, header, &f_attr)
		nr_ids = f_attr.ids.size / sizeof(u64); <-- 0
		perf_evsel__alloc_id(vsel, 1, nr_ids)
			zalloc(ncpus * nthreads * sizeof(u64)) <-- 0

header.c: read_attr()

(gdb) p *f_attr
$17 = {
  attr = {
    type = 0,
    size = 96,
    config = 0,
    {
      sample_period = 4000,
      sample_freq = 4000
    },
...
  ids = {
    offset = 104,
    size = 0      <------
  }
}

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421156604-30603-5-git-send-email-vgupta@synopsys.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-28 12:43:32 -03:00
Ingo Molnar
b3890e4704 Merge branch 'perf/hw_breakpoints' into perf/core
The new hw_breakpoint bits are now ready for v3.20, merge them
into the main branch, to avoid conflicts.

Conflicts:
	tools/perf/Documentation/perf-record.txt

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 15:48:59 +01:00
Ingo Molnar
29bf4dbc98 perf/core improvements and fixes:
User visible:
 
 - Enable sampling loads and stores simultaneously in 'perf mem' (Stephane Eranian)
 
 - 'perf diff' output improvements (Namhyung Kim)
 
 - Fix error reporting for evsel pgfault constructor (Arnaldo Carvalho de Melo)
 
 Infrastructure:
 
 - Move debugfs sterrno like method to tools/lib/ so that it may be used by
   other tools, as 'perf probe' will be soon (Arnaldo Carvalho de Melo)
 
 - Introduce function fro deleting/removing hist_entry to avoid code duplication
   (Arnaldo Carvalho de Melo)
 
 - Support parsing parameterized events (Cody P Schafer)
 
 - Add support for IP address formats in libtraceevent (David Ahern)
 
 - Fix typo in sample-parsing.c 'perf test' entry (Rasmus Villemoes)
 
 - Remove some unused functions from color.c (Rickard Strandqvist)
 
 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/core improvements and fixes from Arnaldo Carvalho de Melo:

"
   User visible changes:

   - Enable sampling loads and stores simultaneously in 'perf mem' (Stephane Eranian)

   - 'perf diff' output improvements (Namhyung Kim)

   - Fix error reporting for evsel pgfault constructor (Arnaldo Carvalho de Melo)

   Infrastructure changes:

   - Move debugfs sterrno like method to tools/lib/ so that it may be used by
     other tools, as 'perf probe' will be soon (Arnaldo Carvalho de Melo)

   - Introduce function fro deleting/removing hist_entry to avoid code duplication
     (Arnaldo Carvalho de Melo)

   - Support parsing parameterized events (Cody P Schafer)

   - Add support for IP address formats in libtraceevent (David Ahern)

   - Fix typo in sample-parsing.c 'perf test' entry (Rasmus Villemoes)

   - Remove some unused functions from color.c (Rickard Strandqvist)
"

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 15:43:15 +01:00
Ingo Molnar
f10698ed68 Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 15:42:56 +01:00
Ingo Molnar
e742f3dc08 perf/urgent fixes:
User visible:
 
 - Fix probing at function return (Namhyumg Kim)
 
 Developer stuff:
 
 - Symbol processing changes necessary for fixing support for
   kretprobes in 'perf probe' (Namhyung Kim, Arnaldo Carvalho de Melo)
 
 - Annotation memory leaks and instruction parsing fixes (Rabin Vincent)
 
 - Fix perl build on ARM64 (Wang Nam)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

" User visible fixes:

  - Fix probing at function return (Namhyumg Kim)

  Developer visible fixes:

  - Symbol processing changes necessary for fixing support for
    kretprobes in 'perf probe' (Namhyung Kim, Arnaldo Carvalho de Melo)

  - Annotation memory leaks and instruction parsing fixes (Rabin Vincent)

  - Fix perl build on ARM64 (Wang Nam)
"

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 15:40:30 +01:00
Peter Zijlstra
c3c87e7704 perf: Tighten (and fix) the grouping condition
The fix from 9fc81d8742 ("perf: Fix events installation during
moving group") was incomplete in that it failed to recognise that
creating a group with events for different CPUs is semantically
broken -- they cannot be co-scheduled.

Furthermore, it leads to real breakage where, when we create an event
for CPU Y and then migrate it to form a group on CPU X, the code gets
confused where the counter is programmed -- triggered in practice
as well by me via the perf fuzzer.

Fix this by tightening the rules for creating groups. Only allow
grouping of counters that can be co-scheduled in the same context.
This means for the same task and/or the same cpu.

Fixes: 9fc81d8742 ("perf: Fix events installation during moving group")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20150123125834.090683288@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:17:35 +01:00
Kan Liang
ef454caeb7 perf/x86/intel: Add model number for Airmont
Intel Airmont supports the same architectural and non-architectural
performance monitoring events as Silvermont.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1421913053-99803-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:17:32 +01:00
Stephane Eranian
98b008dff8 perf/rapl: Fix crash in rapl_scale()
This patch fixes a systematic crash in rapl_scale()
due to an invalid pointer.

The bug was introduced by commit:

  89cbc76768 ("x86: Replace __get_cpu_var uses")

The fix is simple. Just put the parenthesis where it needs
to be, i.e., around rapl_pmu. To my surprise, the compiler
was not complaining about passing an integer instead of a
pointer.

Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Fixes: 89cbc76768 ("x86: Replace __get_cpu_var uses")
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: cl@linux.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20150122203834.GA10228@thinkpad
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:04:35 +01:00
Kan Liang
c05199e5a5 perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization
There were some issues about the uncore driver tried to access
non-existing boxes, which caused boot crashes. These issues have
been all fixed. But we should avoid boot failures if that ever
happens again.

This patch intends to prevent this kind of potential issues.
It moves uncore_box_init out of driver initialization. The box
will be initialized when it's first enabled.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421729665-5912-1-git-send-email-kan.liang@intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:04:34 +01:00
Linus Torvalds
4adca1cbc4 Merge branch 'akpm' (patches from Andrew Morton)
Merge misc fixes from Andrew Morton:
 "Six fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  drivers/rtc/rtc-s5m.c: terminate s5m_rtc_id array with empty element
  printk: add dummy routine for when CONFIG_PRINTK=n
  mm/vmscan: fix highidx argument type
  memcg: remove extra newlines from memcg oom kill log
  x86, build: replace Perl script with Shell script
  mm: page_alloc: embed OOM killing naturally into allocation slowpath
2015-01-26 16:25:42 -08:00
Linus Torvalds
c976a67b02 Merge branch 'for-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
 "The lifetime rules of cgroup hierarchies always have been somewhat
  counter-intuitive and cgroup core tried to enforce that hierarchies
  w/o userland-visible usages must die in finite amount of time so that
  the controllers can be reused for other hierarchies; unfortunately,
  this can't be implemented reasonably for the memory controller - the
  kmemcg part doesn't have any way to forcefully drain the existing
  usages, leading to an interruptible hang if a following mount attempts
  to use the controller in any way.

  So, it seems like we're stuck with "hierarchies live on till they die
  whenever that may be" at least for now.  This pretty much confines
  attaching controllers to hierarchies to before the hierarchies are
  actively used by making dynamic configurations post active usages
  unreliable.  This has never been reliable and should be fine in
  practice given how cgroups are used.

  After the patch, hierarchies aren't killed if it isn't already
  drained.  A following mount attempt of the same mount options will
  reuse the existing hierarchy.  Mount attempts with differing options
  will fail w/ -EBUSY"

* 'for-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: prevent mount hang due to memory controller lifetime
2015-01-26 15:17:34 -08:00
Linus Torvalds
abe3b2695d regulator: Fixes for v3.19
One correctness fix here for the s2mps11 driver which would have
 resulted in some of the regulators being completely broken together with
 a fix for locking in regualtor_put() (which is fortunately rarely called
 at all in practical systems).
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Merge tag 'regulator-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "One correctness fix here for the s2mps11 driver which would have
  resulted in some of the regulators being completely broken together
  with a fix for locking in regualtor_put() (which is fortunately rarely
  called at all in practical systems)"

* tag 'regulator-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: s2mps11: Fix wrong calculation of register offset
  regulator: core: fix race condition in regulator_put()
2015-01-26 14:52:08 -08:00
Linus Torvalds
8d6b9327cb spi: Fixes for v3.19
A few driver specific fixes here, some fixes for issues introduced and
 discovered during recent work on the DesignWare driver (which has been
 getting a lot of attention recently) and a couple of other drivers.  All
 serious things for people who run into them.
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Merge tag 'spi-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few driver specific fixes here, some fixes for issues introduced and
  discovered during recent work on the DesignWare driver (which has been
  getting a lot of attention recently) and a couple of other drivers.
  All serious things for people who run into them"

* tag 'spi-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: dw: amend warning message
  spi: sh-msiof: fix MDR1_FLD_MASK value
  spi: dw-mid: fix FIFO size
  spi: dw: Fix detecting FIFO depth
  spi/pxa2xx: Clear cur_chip pointer before starting next message
2015-01-26 14:51:19 -08:00
Andrey Ryabinin
45cd15e600 drivers/rtc/rtc-s5m.c: terminate s5m_rtc_id array with empty element
Array of platform_device_id elements should be terminated with empty
element.

Fixes: 5bccae6ec4 ("rtc: s5m-rtc: add real-time clock driver for s5m8767")
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:19 -08:00
Pranith Kumar
07261edb97 printk: add dummy routine for when CONFIG_PRINTK=n
There are missing dummy routines for log_buf_addr_get() and
log_buf_len_get() for when CONFIG_PRINTK is not set causing build
failures.

This patch adds these dummy routines at the appropriate location.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
Michael S. Tsirkin
17636faada mm/vmscan: fix highidx argument type
for_each_zone_zonelist_nodemask wants an enum zone_type argument, but is
passed gfp_t:

  mm/vmscan.c:2658:9:    expected int enum zone_type [signed] highest_zoneidx
  mm/vmscan.c:2658:9:    got restricted gfp_t [usertype] gfp_mask
  mm/vmscan.c:2658:9: warning: incorrect type in argument 2 (different base types)
  mm/vmscan.c:2658:9:    expected int enum zone_type [signed] highest_zoneidx
  mm/vmscan.c:2658:9:    got restricted gfp_t [usertype] gfp_mask

convert argument to the correct type.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Suleiman Souhlal <suleiman@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
Greg Thelen
0346dadbf0 memcg: remove extra newlines from memcg oom kill log
Commit e61734c55c ("cgroup: remove cgroup->name") added two extra
newlines to memcg oom kill log messages.  This makes dmesg hard to read
and parse.  The issue affects 3.15+.

Example:

  Task in /t                          <<< extra #1
   killed as a result of limit of /t
                                      <<< extra #2
  memory: usage 102400kB, limit 102400kB, failcnt 274712

Remove the extra newlines from memcg oom kill messages, so the messages
look like:

  Task in /t killed as a result of limit of /t
  memory: usage 102400kB, limit 102400kB, failcnt 240649

Fixes: e61734c55c ("cgroup: remove cgroup->name")
Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
Kees Cook
d69911a68c x86, build: replace Perl script with Shell script
Commit e6023367d7 ("x86, kaslr: Prevent .bss from overlaping initrd")
added Perl to the required build environment.  This reimplements in
shell the Perl script used to find the size of the kernel with bss and
brk added.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Rob Landley <rob@landley.net>
Acked-by: Rob Landley <rob@landley.net>
Cc: Anca Emanuel <anca.emanuel@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Junjie Mao <eternal.n08@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
Johannes Weiner
9879de7373 mm: page_alloc: embed OOM killing naturally into allocation slowpath
The OOM killing invocation does a lot of duplicative checks against the
task's allocation context.  Rework it to take advantage of the existing
checks in the allocator slowpath.

The OOM killer is invoked when the allocator is unable to reclaim any
pages but the allocation has to keep looping.  Instead of having a check
for __GFP_NORETRY hidden in oom_gfp_allowed(), just move the OOM
invocation to the true branch of should_alloc_retry().  The __GFP_FS
check from oom_gfp_allowed() can then be moved into the OOM avoidance
branch in __alloc_pages_may_oom(), along with the PF_DUMPCORE test.

__alloc_pages_may_oom() can then signal to the caller whether the OOM
killer was invoked, instead of requiring it to duplicate the order and
high_zoneidx checks to guess this when deciding whether to continue.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
David Ahern
3d199b5be5 tools lib traceevent: Add support for IP address formats
Add helpers for the following kernel formats:
  %pi4 print an IPv4 address with leading zeros
  %pI4 print an IPv4 address without leading zeros
  %pi6 print an IPv6 address without colons
  %pI6 print an IPv6 address with colons
  %pI6c print an IPv6 address in compressed form with colons
  %pISpc print an IP address from a sockaddr

Allows these formats to be used in tracepoints.

Quite a bit of this is adapted from code in lib/vsprintf.c.

v4:
- fixed pI6c description in git commit message per Valdis' comment

v3:
- use of 'c' and 'p' requires 'I'

v2:
- pass ptr+1 to print_ip_arg per Namhyung's comments
- added field length checks to sockaddr function

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1418955071-36241-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-26 12:04:41 -03:00
Mark Brown
06a5687f82 Merge remote-tracking branches 'spi/fix/dw', 'spi/fix/msiof' and 'spi/fix/pxa2xx' into spi-linus 2015-01-26 11:16:27 +00:00
Linus Torvalds
26bc420b59 Linux 3.19-rc6 2015-01-25 20:04:41 -08:00
Linus Torvalds
14746306af Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "Hopefully the last round of fixes for 3.19

   - regression fix for the LDT changes
   - regression fix for XEN interrupt handling caused by the APIC
     changes
   - regression fixes for the PAT changes
   - last minute fixes for new the MPX support
   - regression fix for 32bit UP
   - fix for a long standing relocation issue on 64bit tagged for stable
   - functional fix for the Hyper-V clocksource tagged for stable
   - downgrade of a pr_err which tends to confuse users

  Looks a bit on the large side, but almost half of it are valuable
  comments"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsc: Change Fast TSC calibration failed from error to info
  x86/apic: Re-enable PCI_MSI support for non-SMP X86_32
  x86, mm: Change cachemode exports to non-gpl
  x86, tls: Interpret an all-zero struct user_desc as "no segment"
  x86, tls, ldt: Stop checking lm in LDT_empty
  x86, mpx: Strictly enforce empty prctl() args
  x86, mpx: Fix potential performance issue on unmaps
  x86, mpx: Explicitly disable 32-bit MPX support on 64-bit kernels
  x86, hyperv: Mark the Hyper-V clocksource as being continuous
  x86: Don't rely on VMWare emulating PAT MSR correctly
  x86, irq: Properly tag virtualization entry in /proc/interrupts
  x86, boot: Skip relocs when load address unchanged
  x86/xen: Override ACPI IRQ management callback __acpi_unregister_gsi
  ACPI: pci: Do not clear pci_dev->irq in acpi_pci_irq_disable()
  x86/xen: Treat SCI interrupt as normal GSI interrupt
2015-01-25 18:11:17 -08:00
Linus Torvalds
4d2f0ef1c9 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "From the irqchip departement you get:

   - regression fix for omap-intc

   - regression fix for atmel-aic-common

   - functional correctness fix for hip04

   - type mismatch fix for gic-v3-its

   - proper error pointer check for mtd-sysirq

  Mostly one and two liners except for the omap regression fix which is
  slightly larger than desired"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip: atmel-aic-common: Prevent clobbering of priority when changing IRQ type
  irqchip: omap-intc: Fix legacy DMA regression
  irqchip: gic-v3-its: Fix use of max with decimal constant
  irqchip: hip04: Initialize hip04_cpu_map to 0xffff
  irqchip: mtk-sysirq: Use IS_ERR() instead of NULL pointer check
2015-01-25 18:07:01 -08:00
Linus Torvalds
b73f0c8f4b Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 "A set of small fixes:

   - regression fix for exynos_mct clocksource

   - trivial build fix for kona clocksource

   - functional one liner fix for the sh_tmu clocksource

   - two validation fixes to prevent (root only) data corruption in the
     kernel via settimeofday and adjtimex.  Tagged for stable"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time: adjtimex: Validate the ADJ_FREQUENCY values
  time: settimeofday: Validate the values of tv from user
  clocksource: sh_tmu: Set cpu_possible_mask to fix SMP broadcast
  clocksource: kona: fix __iomem annotation
  clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
2015-01-25 17:47:34 -08:00
Linus Torvalds
71a59b1272 ARM: SoC fixes
A week's worth of fixes for various ARM platforms. Diff wise, the
 largest fix is for OMAP to deal with how GIC now registers interrupts
 (irq_domain_add_legacy() -> irq_domain_add_linear() changes).
 
 Besides this, a few more renesas platforms needed the GIC instatiation
 done for legacy boards. There's also a fix that disables coherency of
 mvebu due to issues, and a few other smaller fixes.
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A week's worth of fixes for various ARM platforms.  Diff wise, the
  largest fix is for OMAP to deal with how GIC now registers interrupts
  (irq_domain_add_legacy() -> irq_domain_add_linear() changes).

  Besides this, a few more renesas platforms needed the GIC instatiation
  done for legacy boards.  There's also a fix that disables coherency of
  mvebu due to issues, and a few other smaller fixes"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: add baud rate to Juno stdout-path
  ARM: dts: imx25: Fix PWM "per" clocks
  bus: mvebu-mbus: fix support of MBus window 13
  Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes
  ARM: mvebu: completely disable hardware I/O coherency
  ARM: OMAP: Work around hardcoded interrupts
  ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds
  arm: boot: dts: dra7: enable dwc3 suspend PHY quirk
2015-01-25 17:29:06 -08:00
Linus Torvalds
80a755545d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A couple of fixes - deadlock in CIFS and build breakage in cris serial
  driver (resurfaced f_dentry in there)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Convert file->f_dentry->d_inode to file_inode()
  fix deadlock in cifs_ioctl_clone()
2015-01-25 17:27:18 -08:00
Linus Torvalds
bfc835b571 2 stable fixes for dm-cache and 1 3.19 DM core fix:
- Fix potential for dm-cache metadata corruption via stale metadata
   buffers being used when switching an inactive cache table to active;
   this could occur due to each table having it's own bufio client rather
   than sharing the client between tables.
 
 - Fix dm-cache target to properly account for discard IO while
   suspending otherwise IO quiescing could complete prematurely.
 
 - Fix DM core's handling of multiple internal suspends by maintaining an
   'internal_suspend_count' and only resuming the device when this count
   drops to zero.
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Merge tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Two stable fixes for dm-cache and one 3.19 DM core fix:

   - fix potential for dm-cache metadata corruption via stale metadata
     buffers being used when switching an inactive cache table to
     active; this could occur due to each table having it's own bufio
     client rather than sharing the client between tables.

   - fix dm-cache target to properly account for discard IO while
     suspending otherwise IO quiescing could complete prematurely.

   - fix DM core's handling of multiple internal suspends by maintaining
     an 'internal_suspend_count' and only resuming the device when this
     count drops to zero"

* tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: fix handling of multiple internal suspends
  dm cache: fix problematic dual use of a single migration count variable
  dm cache: share cache-metadata object across inactive and active DM tables
2015-01-25 17:25:01 -08:00
Linus Torvalds
8e908e9904 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull two block layer fixes from Jens Axboe:
 "Two small patches that should make it into 3.19:

   - a fixup from me for NVMe, making the cq_vector a signed variable.
     Otherwise our -1 comparison fails, and commit 2b25d98179 doesn't
     do what it was supposed to.

   - a fixup for the hotplug handling for blk-mq from Ming Lei, using
     the proper kobject referencing to ensure we release resources at
     the right time"

* 'for-linus' of git://git.kernel.dk/linux-block:
  blk-mq: fix hctx/ctx kobject use-after-free
  NVMe: cq_vector should be signed
2015-01-25 17:23:34 -08:00
Linus Torvalds
440e996095 SCSI fixes on 20150124
This patch consists of four real fixes and three MAINTAINER updates.  Three of
 the fixes are obvious (the DIX and atomic allocation are bug on and warn on
 fixes and the other is just trivial) and the ipr one is a bit more involved
 but is required because without it, the card double completes aborted commands
 and causes a kernel oops.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

pULL SCSI fixes from James Bottomley:
 "This consists of four real fixes and three MAINTAINER updates.

  Three of the fixes are obvious (the DIX and atomic allocation are bug
  on and warn on fixes and the other is just trivial) and the ipr one is
  a bit more involved but is required because without it, the card
  double completes aborted commands and causes a kernel oops"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  MAINTAINERS: ibmvscsi driver maintainer change
  MAINTAINERS: ibmvfc driver maintainer change
  MAINTAINERS: Remove self as isci maintainer
  scsi_debug: test always evaluates to false, || should be used instead
  scsi: Avoid crashing if device uses DIX but adapter does not support it
  scsi_debug: use atomic allocation in resp_rsup_opcodes
  ipr: wait for aborted command responses
2015-01-24 14:52:30 -08:00
Linus Torvalds
f828d5e248 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 "This will fix reboot issues with the imx2_wdt driver and it also drops
  some forgotten owner assignments from platform_drivers"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: drop owner assignment from platform_drivers
  watchdog: imx2_wdt: Disable power down counter on boot
  watchdog: imx2_wdt: Improve power management support.
2015-01-24 14:47:24 -08:00
Linus Torvalds
0012125ade Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon update from Jean Delvare:
 "This contains a single thing: a new driver for the temperature sensor
  embedded in the Intel 5500/5520/X58 chipsets.

  Sorry for the late request, it's been so long since I last sent a pull
  request and I've been so busy with other tasks meanwhile that I simply
  forgot about these patches.  But given that this is a new driver, it
  can't introduce any regression so I thought it could still be OK.

  This has been in linux-next for months now"

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro
  hwmon: (i5500_temp) Convert to module_pci_driver
  hwmon: (i5500_temp) Don't bind to disabled sensors
  hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups
  hwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets
2015-01-24 14:37:31 -08:00
Linus Torvalds
af469b3748 media fixes for v3.19-rc6
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Merge tag 'media/v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
  - fix some race conditions caused by a regression on videobuf2
  - fix a interrupt release bug on cx23885
  - fix support for Mygica T230 and HVR4400
  - fix compilation breakage when USB is not selected on tlg2300
  - fix capabilities report on ompa3isp, soc-camera, rcar_vin and
    pvrusb2

* tag 'media/v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] omap3isp: Correctly set QUERYCAP capabilities
  [media] cx23885: fix free interrupt bug
  [media] pvrusb2: fix missing device_caps in querycap
  [media] vb2: fix vb2_thread_stop race conditions
  [media] rcar_vin: Update device_caps and capabilities in querycap
  [media] soc-camera: fix device capabilities in multiple camera host drivers
  [media] Fix Mygica T230 support
  [media] cx23885: Split Hauppauge WinTV Starburst from HVR4400 card entry
  [media] tlg2300: Fix media dependencies
2015-01-24 14:34:54 -08:00
Mikulas Patocka
96b26c8c64 dm: fix handling of multiple internal suspends
Commit ffcc393641 ("dm: enhance internal suspend and resume interface")
attempted to handle multiple internal suspends on the same device, but
it did that incorrectly.  When these functions are called in this order
on the same device the device is no longer suspended, but it should be:
	dm_internal_suspend_noflush
	dm_internal_suspend_noflush
	dm_internal_resume

Fix this bug by maintaining an 'internal_suspend_count' and resuming
the device when this count drops to zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-01-24 14:50:08 -05:00
Axel Lin
86c725e3c5 hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro
Use ATTRIBUTE_GROUPS macro to simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-01-24 14:16:22 +01:00
Axel Lin
aef64d0d38 hwmon: (i5500_temp) Convert to module_pci_driver
Use module_pci_driver to simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-01-24 14:16:22 +01:00
Jean Delvare
e3d982034d hwmon: (i5500_temp) Don't bind to disabled sensors
On many motherboards, for an unknown reason, the thermal sensor seems
to be disabled and will return a constant temperature value of 36.5
degrees Celsius. Don't bind to the device in that case, so that we
don't report this bogus value to userspace.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2015-01-24 14:16:21 +01:00
Jean Delvare
b8d48ce951 hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups
Use devm_hwmon_device_register_with_groups() to simplify the code a
bit.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2015-01-24 14:16:21 +01:00
Jean Delvare
ada072816b hwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets
The Intel 5500, 5520 and X58 chipsets embed a digital thermal sensor.
This new driver supports it.

Note that on many boards the sensor seems to be disabled and reports
the minimum value (36.5 degrees Celsius) all the time.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2015-01-24 14:16:21 +01:00
Linus Torvalds
c4e00f1d31 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "We have a few fixes in my for-linus branch.

  Qu Wenruo's batch fix a regression between some our merge window pull
  and the inode_cache feature.  The rest are smaller bugs"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: Don't call btrfs_start_transaction() on frozen fs to avoid deadlock.
  btrfs: Fix the bug that fs_info->pending_changes is never cleared.
  btrfs: fix state->private cast on 32 bit machines
  Btrfs: fix race deleting block group from space_info->ro_bgs list
  Btrfs: fix incorrect freeing in scrub_stripe
  btrfs: sync ioctl, handle errors after transaction start
2015-01-24 14:31:27 +12:00
Linus Torvalds
53448a538d platform-drivers-x86 for 3.19-2
dell-laptop: Revert keyboard backlight sysfs support and documentation
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Merge tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull platform driver fix from Darren Hart:
 "Revert keyboard backlight sysfs support and documentation.

  The support for the dell-laptop keyboard backlight was flawed and the
  fix:

        https://lkml.org/lkml/2015/1/14/539

  was more invasive that I felt comfortable sending at RC5.

  This series reverts the support for the dell-laptop keyboard backlight
  as well as the documentation for the newly created sysfs attributes.

  We'll get this implemented correctly for 3.20"

* tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  Revert "platform: x86: dell-laptop: Add support for keyboard backlight"
  Revert "Documentation: Add entry for dell-laptop sysfs interface"
2015-01-24 11:26:13 +12:00
Linus Torvalds
550695925d PCI updates for v3.19:
Resource management
     - Clip bridge windows to fit in upstream windows (Yinghai Lu)
 
   Virtualization
     - Mark Atheros AR93xx to avoid using bus reset (Alex Williamson)
 
   Miscellaneous
     - Update Richard Zhu's email address (Lucas Stach)
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Merge tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are fixes for:

   - a resource management problem that causes a Radeon "Fatal error
     during GPU init" on machines where the BIOS programmed an invalid
     Root Port window.  This was a regression in v3.16.

   - an Atheros AR93xx device that doesn't handle PCI bus resets
     correctly.  This was a regression in v3.14.

   - an out-of-date email address"

* tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Richard Zhu's email address
  sparc/PCI: Clip bridge windows to fit in upstream windows
  powerpc/PCI: Clip bridge windows to fit in upstream windows
  parisc/PCI: Clip bridge windows to fit in upstream windows
  mn10300/PCI: Clip bridge windows to fit in upstream windows
  microblaze/PCI: Clip bridge windows to fit in upstream windows
  ia64/PCI: Clip bridge windows to fit in upstream windows
  frv/PCI: Clip bridge windows to fit in upstream windows
  alpha/PCI: Clip bridge windows to fit in upstream windows
  x86/PCI: Clip bridge windows to fit in upstream windows
  PCI: Add pci_claim_bridge_resource() to clip window if necessary
  PCI: Add pci_bus_clip_resource() to clip to fit upstream window
  PCI: Pass bridge device, not bus, when updating bridge windows
  PCI: Mark Atheros AR93xx to avoid bus reset
  PCI: Add flag for devices where we can't use bus reset
2015-01-24 10:58:47 +12:00
Linus Torvalds
b8de08da04 Devicetree updates for v3.19-rc6
A few bugfixes for the new DT overlay feature, documentation updates,
 spelling corrections, and changes to MAINTAINERS. Nothing earth
 shattering here.
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux

Pull devicetree bug fixes and documentation updates from Grant Likely:
 "A few bugfixes for the new DT overlay feature, documentation updates,
  spelling corrections, and changes to MAINTAINERS.  Nothing earth
  shattering here"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
  of/unittest: Overlays with sub-devices tests
  of/platform: Handle of_populate drivers in notifier
  of/overlay: Do not generate duplicate nodes
  devicetree: document the "qemu" and "virtio" vendor prefixes
  devicetree: document ARM bindings for QEMU's Firmware Config interface
  Documentation: of: fix typo in graph bindings
  dma-mapping: fix debug print to display correct dma_pfn_offset
  of: replace Asahi Kasei Corp vendor prefix
  ARM: dt: GIC: Spelling s/specific/specifier/, s/flaggs/flags/
  dt/bindings: arm-boards: Spelling s/pointong/pointing/
  MAINTAINERS: Update DT website and git repository
  MAINTAINERS: drop DT regex matching on of_get_property and of_match_table
2015-01-24 10:55:05 +12:00
Olof Johansson
4b3415c936 The i.MX fixes for 3.19, 2nd round:
- Correct pwm clock assignment in i.MX25 device tree to fix the broken
    pwm support on i.MX25
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Merge tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.19, 2nd round" from Shawn Guo:

The i.MX fixes for 3.19, 2nd round:
 - Correct pwm clock assignment in i.MX25 device tree to fix the broken
   pwm support on i.MX25

* tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx25: Fix PWM "per" clocks

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-23 14:23:40 -08:00
Robin Murphy
e0b2180010 arm64: dts: add baud rate to Juno stdout-path
Without explicit command-line parameters, the Juno UART ends up running
at 57600 baud in the kernel, which is at odds with the 115200 baud used
by the rest of the firmware. Since commit 7914a7c565 now lets us
fix this by specifying default options in stdout-path, do so.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-23 14:17:56 -08:00
Olof Johansson
5cf920619e mvebu fixes for 3.19. (Part 4)
bus: mvebu-mbus: fix support of MBus window 13
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Merge tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu/fixes #3" from Andrew Lunn:

mvebu fixes for 3.19. (Part 4)

bus: mvebu-mbus: fix support of MBus window 13

* tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu:
  bus: mvebu-mbus: fix support of MBus window 13
  ARM: mvebu: completely disable hardware I/O coherency

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-23 14:08:13 -08:00
Linus Torvalds
2e3810da41 Three small fixes. Two for x86 and one avoids that sparse bails out.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Three small fixes.

  Two for x86 and one avoids that sparse bails out"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: SYSENTER emulation is broken
  KVM: x86: Fix of previously incomplete fix for CVE-2014-8480
  KVM: fix sparse warning in include/trace/events/kvm.h
2015-01-24 09:58:17 +12:00