In --stdio we turn off color output when the output is not a tty,
which is not always desirable, for instance, in:
perf annotate | more
the 'more' tool is perfectly capable of processing the escape sequences
for colored output.
Allow using the existing logic for .perfconfig's "color.ui" to be used
from the command line by providing a stdio__config_color() helper, that
will be used by annotate and report in follow up patches.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-1u4wjdbcc41dxndsb4klpa9y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Introducing hists__add_entry_ops function to allow using the allocation
callbacks externally.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467701765-26194-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Introducing allocation callbacks, that allows to extend current
hist_entry object into objects with special needs without polluting the
current hist_entry object.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467701765-26194-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Move the 'struct hist_entry' initialization code to a separate function.
It'll be useful and more clear for the following patches that introduce
allocation callbacks.
Releasing the hist_entry object in hist_entry__new function
(where it's allocated) rather than in hist_entry__init.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467701765-26194-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This reverts commit 2c95afc1e8.
Stephane reported the following regression:
> Since Andi added:
>
> commit 2c95afc1e8
> Author: Andi Kleen <ak@linux.intel.com>
> Date: Thu Jun 9 06:14:38 2016 -0700
>
> perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86
>
> $ perf stat -e ref-cycles ls
> <not counted> ....
>
> fails systematically because the ref-cycles is now used by the
> watchdog and given this is a system-wide pinned event, it monopolizes
> the fixed counter 2 which is the only counter able to measure this event.
Since the next merge window is near, fix the regression for now
by reverting the commit.
Reported-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This patch adds full support for Intel SKL client uncore PMU:
- Add support for SKL client CPU uncore PMU, which is similar to the
BDW client PMU driver. (There are some differences in CBOX numbering
and uncore control MSR.)
- Add new support for SkyLake Mobile uncore PMUs, for both CPU and PCI
uncore functionality.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1467208912-8179-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The following commit:
66eb579e66 ("perf: allow for PMU-specific event filtering")
added the pmu::filter_match() callback. This was intended to
avoid HW constraints on events from resulting in extremely
pessimistic scheduling.
However, pmu::filter_match() is only called for the leader of each event
group. When the leader is a SW event, we do not filter the groups, and
may fail at pmu::add() time, and when this happens we'll give up on
scheduling any event groups later in the list until they are rotated
ahead of the failing group.
This can result in extremely sub-optimal event scheduling behaviour,
e.g. if running the following on a big.LITTLE platform:
$ taskset -c 0 ./perf stat \
-e 'a57{context-switches,armv8_cortex_a57/config=0x11/}' \
-e 'a53{context-switches,armv8_cortex_a53/config=0x11/}' \
ls
<not counted> context-switches (0.00%)
<not counted> armv8_cortex_a57/config=0x11/ (0.00%)
24 context-switches (37.36%)
57589154 armv8_cortex_a53/config=0x11/ (37.36%)
Here the 'a53' event group was always eligible to be scheduled, but
the 'a57' group never eligible to be scheduled, as the task was always
affine to a Cortex-A53 CPU. The SW (group leader) event in the 'a57'
group was eligible, but the HW event failed at pmu::add() time,
resulting in ctx_flexible_sched_in giving up on scheduling further
groups with HW events.
One way of avoiding this is to check pmu::filter_match() on siblings
as well as the group leader. If any of these fail their
pmu::filter_match() call, we must skip the entire group before
attempting to add any events.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Fixes: 66eb579e66 ("perf: allow for PMU-specific event filtering")
Link: http://lkml.kernel.org/r/1465917041-15339-1-git-send-email-mark.rutland@arm.com
[ Small readability edits. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Since commit 4b6e2571bf the rapl perf module calls itself intel-rapl. That
name was already in use by the rapl powercap driver, which now fails to load
if the perf module is loaded. Fix the problem by renaming the perf module to
intel-rapl-perf, so that both modules can coexist.
Fixes: 4b6e2571bf ("x86/perf/intel/rapl: Make the Intel RAPL PMU driver modular")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1466694409-3620-1-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Documentation:
- Update android build documentation (Chris Phlipot)
Infrastructure:
- Respect WERROR=0 in libapi and libsubcmd, to allow building on Android (Chris Phlipot)
- Prep work to support SDT events in probe cache (Masami Hiramatsu)
- ELF support for SDT (Hemant Kumar)
- Add feature detection for libelf's elf_getshdrstrndx function (Arnaldo Carvalho de Melo)
- Fix hist accumulation test (Jiri Olsa)
- Unwind callchain fixes (Jiri Olsa)
- Change internal representation of numa nodes obtained from
perf.data header (Jiri Olsa)
- Sync copy of syscall_64.tbl with the kernel (Arnaldo Carvalho de Melo)
- Add LGPL 2.1 license header to libbpf source files (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=UWaR
-----END PGP SIGNATURE-----
Merge tag 'perf-core-for-mingo-20160704' 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:
Documentation changes:
- Update android build documentation (Chris Phlipot)
Infrastructure changes:
- Respect WERROR=0 in libapi and libsubcmd, to allow building on Android (Chris Phlipot)
- Prep work to support SDT events in probe cache (Masami Hiramatsu)
- ELF support for SDT (Hemant Kumar)
- Add feature detection for libelf's elf_getshdrstrndx function (Arnaldo Carvalho de Melo)
- Fix hist accumulation test (Jiri Olsa)
- Unwind callchain fixes (Jiri Olsa)
- Change internal representation of numa nodes obtained from
perf.data header (Jiri Olsa)
- Sync copy of syscall_64.tbl with the kernel (Arnaldo Carvalho de Melo)
- Add LGPL 2.1 license header to libbpf source files (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Noticed by the build system, that emitted this warning:
Warning: x86_64's syscall_64.tbl differs from kernel
This was due to the wiring up of the recently added preadv2 & pwritev2
syscalls to the compat code, which hadn't been done by the patch
introducing those syscalls: 4babf2c5ef ("x86: wire up preadv2 and
pwritev2").
The patch doing the compat wiring was:
482dd2ef12 ("x86/syscalls: Wire up compat readv2/writev2 syscalls")
This just silences the perf build warning, as compat syscalls still
can't be supported in 'perf trace´ due to limitations in the
raw_syscalls:sys_{enter,exit} tracepoints it relies on.
Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-4dm8eoy0wslgtwqdhz64ods0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Update the android build documentation according to recent android build
fixes. The instructions for step 1a and step 2 were updated to work with
NDK version 11(oldest supported version) and NDK version 12(current
version).
Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-5-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
this enables the workaround for compilers that generate warnings when
compiling libsubcmd.
Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-3-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This enables the workaround for compilers that generate warnings when
compiling libapi.
Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-2-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adding a missing license descriptopn header to files in libbpf, make it
LGPL-2.1.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Leblond <eleblond@stamus-networks.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1467630162-193121-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently we call unwind__prepare_access for map event. In case we
report fork event the thread inherits its parent's maps and
unwind__prepare_access is never called for the thread.
This causes unwind__get_entries seeing uninitialized
unwind_libunwind_ops and thus returning no callchain.
Adding unwind__prepare_access calls for fork even processing.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adding initialized arg into unwind__prepare_access to get feedback about
the initialization state.
It's not possible to get it from error code, because we return 0 even in
case we don't recognize dso, which is valid.
The 'initialized' value is used in following patch to speedup
unwind__prepare_access calls logic in fork path.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-4-git-send-email-jolsa@kernel.org
[ Remove ; after static inline function signatures, fixes build break ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
User's values from .perfconfig could overload the default callchain
setup and cause this test to fail. Making sure the test is using
default callchain_param values.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Storing NUMA info within struct numa_node instead of strings. This way
it's usable in future patches.
Also it turned out it's slightly less code involved than using strings.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
perf buildid-cache --add <binary> scans given binary and add
the SDT events to probe cache. "sdt_" prefix is appended for
all SDT providers to avoid event-name clash with other pre-defined
events. It is possible to use the cached SDT events as other cached
events, via perf probe --add "sdt_<provider>:<event>=<event>".
e.g.
----
# perf buildid-cache --add /lib/libc-2.17.so
# perf probe --cache --list | head -n 5
/usr/lib/libc-2.17.so (a6fb821bdf53660eb2c29f778757aef294d3d392):
sdt_libc:setjmp=setjmp
sdt_libc:longjmp=longjmp
sdt_libc:longjmp_target=longjmp_target
sdt_libc:memory_heap_new=memory_heap_new
# perf probe -x /usr/lib/libc-2.17.so \
-a sdt_libc:memory_heap_new=memory_heap_new
Added new event:
sdt_libc:memory_heap_new (on memory_heap_new
in /usr/lib/libc-2.17.so)
You can now use it in all perf tools, such as:
perf record -e sdt_libc:memory_heap_new -aR sleep 1
# perf probe -l
sdt_libc:memory_heap_new (on new_heap+183 in /usr/lib/libc-2.17.so)
----
Note that SDT event entries in probe-cache file is somewhat different
from normal cached events. Normal one starts with "#", but SDTs are
starting with "%".
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736025058.27797.13043265488541434502.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Allow user to set group name for adding new event. Note that user must
ensure that the group name doesn't conflict with existing group name
carefully.
E.g. Existing group name can conflict with other events. Especially,
using the group name reserved for kernel modules can hide kernel
embedded events when loading modules.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736024091.27797.9471545190066268995.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch serves the initial support to identify and list SDT events in
binaries. When programs containing SDT markers are compiled, gcc with
the help of assembler directives identifies them and places them in the
section ".note.stapsdt".
To find these markers from the binaries, one needs to traverse through
this section and parse the relevant details like the name, type and
location of the marker. Also, the original location could be skewed due
to the effect of prelinking. If that is the case, the locations need to
be adjusted.
The functions in this patch open a given ELF, find out the SDT section,
parse the relevant details, adjust the location (if necessary) and
populate them in a list.
A typical note entry in ".note.stapsdt" section is as follows :
|--nhdr.n_namesz--|
------------------------------------
| nhdr | "stapsdt" |
----- |----------------------------------|
| | <location> <base_address> |
| | <semaphore> |
nhdr.n_descsize | "provider_name" "note_name" |
| | <args> |
----- |----------------------------------|
| nhdr | "stapsdt" |
|...
The above shows an excerpt from the section ".note.stapsdt". 'nhdr' is
a structure which has the note name size (n_namesz), note description
size (n_desc_sz) and note type (n_type).
So, in order to parse the note note info, we need nhdr to tell us where
to start from. As can be seen from <sys/sdt.h>, the name of the SDT
notes given is "stapsdt". But this is not the identifier of the note.
After that, we go to description of the note to find out its location, the
address of the ".stapsdt.base" section and the semaphore address.
Then, we find the provider name and the SDT marker name and then follow the
arguments.
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736022628.27797.1201368329092908163.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
That appeared after 0.140, and will be used in the SDT code, so, to
avoid bisection break on older systems, add a feature detection and
provide a stub with a pr_debug() to keep it building.
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch updates the event constraints for non-PEBS mode for
Intel Broadwell and Skylake processors. When HT is off, each
CPU gets 8 generic counters. However, not all events can be
programmed on any of the 8 counters. This patch adds the
constraints for the MEM_* events which can only be measured on the
bottom 4 counters. The constraints are also valid when HT is off
because, then, there are only 4 generic counters and they are the
bottom counters.
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: kan.liang@intel.com
Link: http://lkml.kernel.org/r/1467411742-13245-1-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull MIPS fix from Ralf Baechle:
"Only a single fix for 4.7 pending at this point. It fixes an issue
that may lead to corruption of the cache mode bits in the page table"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Fix possible corruption of cache mode by mprotect.
- tm: Always reclaim in start_thread() for exec() class syscalls from Cyril Bur
- tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0 from Michael Neuling
- eeh: Fix wrong argument passed to eeh_rmv_device() from Gavin Shan
- Initialise pci_io_base as early as possible from Darren Stevens
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=oEAY
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.7-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- tm: Always reclaim in start_thread() for exec() class syscalls from
Cyril Bur
- tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0 from Michael
Neuling
- eeh: Fix wrong argument passed to eeh_rmv_device() from Gavin Shan
- Initialise pci_io_base as early as possible from Darren Stevens
* tag 'powerpc-4.7-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Initialise pci_io_base as early as possible
powerpc/tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0
powerpc/eeh: Fix wrong argument passed to eeh_rmv_device()
powerpc/tm: Always reclaim in start_thread() for exec() class syscalls
Pull drm fixes frlm Dave Airlie:
"Just some AMD and Intel fixes, the AMD ones are further production
Polaris fixes, and the Intel ones fix some early timeouts, some PCI ID
changes and a couple of other fixes.
Still a bit Internet challenged here, hopefully end of next week will
solve it"
* tag 'drm-fixes-for-v4.7-rc6' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Fix missing unlock on error in i915_ppgtt_info()
drm/amd/powerplay: workaround for UVD clock issue
drm/amdgpu: add ACLK_CNTL setting for polaris10
drm/amd/powerplay: fix issue uvd dpm can't enabled on Polaris11.
drm/amd/powerplay: Workaround for Memory EDC Error on Polaris10.
drm/i915: Removing PCI IDs that are no longer listed as Kabylake.
drm/i915: Add more Kabylake PCI IDs.
drm/i915: Avoid early timeout during AUX transfers
drm/i915/hsw: Avoid early timeout during LCPLL disable/restore
drm/i915/lpt: Avoid early timeout during FDI PHY reset
drm/i915/bxt: Avoid early timeout during PLL enable
drm/i915: Refresh cached DP port register value on resume
drm/amd/powerplay: Update CKS on/ CKS off voltage offset calculation
drm/amd/powerplay: disable FFC.
drm/amd/powerplay: add some definition for FFC feature on polaris.
A few small driver-specific fixes for SPI, all in the normal important
if you hit them category especially the rockchip driver fix which
addresses a race which has been exposed more frequently with some recent
performance improvements.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJXd4PmAAoJECTWi3JdVIfQ0A4H/1D1m/bsdAY0FS12YQteV1GQ
JYUvj/CWNiuV1MSqIU0WWrlMFO9EwtsojytLIfmGNPXUvPMSpW/Q3IJqhRrQWhmN
Zl1FUUUIz+sGBsqwq6nZbDJxJhpT6/Tb7YDFR6Oi4l7VeB4Sisv5ax6Ay+uwa/mp
cvrb/ULILLCHAv0v+6rSjIkZlvD1Yc+08SbbUrTPtVdcY0TDbJEkZ+U2IviCsxmP
PuqdPUgFIEy7j+hnbEib24f5BNZ/m1a0DY012+es7fSkD5DVa2h71kxS54RC6QYn
BkkMdK7moflBpbipKlI/eBPz73eePO9SxBwUZFLSUzG4DJEJE2mKKRVyU2LHpGA=
=uU1M
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small driver-specific fixes for SPI, all in the normal important
if you hit them category especially the rockchip driver fix which
addresses a race which has been exposed more frequently with some
recent performance improvements"
* tag 'spi-fix-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: sunxi: fix transfer timeout
spi: sun4i: fix FIFO limit
spi: rockchip: Signal unfinished DMA transfers
spi: spi-ti-qspi: Suspend the queue before removing the device
Two small fixes for the regulator subsystem - one fixing a crash with
one of the devices supported by the max77620 driver, another fixing
startup for the anatop regulator when it starts up with the regulator in
bypass mode.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJXd4GeAAoJECTWi3JdVIfQ+g8H/jpOOKEri6SVaatEbk2J33oA
YD6EpSV4BRVGQRRLSY11tz3Md45xPLhe47kRpT1antgplKVEAJYARGYGVLmCovGz
nFXqbQzeTvxs6o6UdrkJlFLDmn4yZgrL4MqhjfxLUzX+Yz/3neQZq6KhESCWKphT
WPBrNa90s0j+nBCGJV0LxcuoZiKt6th/GUjr0gngepckrg3gIxJJyRVvtE9iVyip
JYdVTfHt/aYJihIdKAPnXa4M9Ky5KY8ZNTySYcyUaXT3VLDK/UNFFO25q4Nw6F5a
6XgcjwcFYDpZitf7pQYYfoobDbgTJ1XllPujEP82rIafruAvAKtfORHnvVJfRlU=
=ZA94
-----END PGP SIGNATURE-----
Merge tag 'regulator-fix-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Two small fixes for the regulator subsystem - one fixing a crash with
one of the devices supported by the max77620 driver, another fixing
startup for the anatop regulator when it starts up with the regulator
in bypass mode"
* tag 'regulator-fix-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: max77620: check for valid regulator info
regulator: anatop: allow regulator to be in bypass mode
rockchip clk driver fixes for newly added rk3399 support.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=fAAu
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A small fix for the newly added oxnas clk driver and a handful of
rockchip clk driver fixes for newly added rk3399 support"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: Fix return value check in oxnas_stdclk_probe()
clk: rockchip: release io resource when failing to init clk on rk3399
clk: rockchip: fix cpuclk registration error handling
clk: rockchip: Revert "clk: rockchip: reset init state before mmc card initialization"
clk: rockchip: fix incorrect parent for rk3399's {c,g}pll_aclk_perihp_src
clk: rockchip: mark rk3399 GIC clocks as critical
clk: rockchip: initialize flags of clk_init_data in mmc-phase clock
here's a batch of i915 fixes for 4.7.
* tag 'drm-intel-fixes-2016-06-30' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fix missing unlock on error in i915_ppgtt_info()
drm/i915: Removing PCI IDs that are no longer listed as Kabylake.
drm/i915: Add more Kabylake PCI IDs.
drm/i915: Avoid early timeout during AUX transfers
drm/i915/hsw: Avoid early timeout during LCPLL disable/restore
drm/i915/lpt: Avoid early timeout during FDI PHY reset
drm/i915/bxt: Avoid early timeout during PLL enable
drm/i915: Refresh cached DP port register value on resume
Just a few more late fixes for Polaris cards.
* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: workaround for UVD clock issue
drm/amdgpu: add ACLK_CNTL setting for polaris10
drm/amd/powerplay: fix issue uvd dpm can't enabled on Polaris11.
drm/amd/powerplay: Workaround for Memory EDC Error on Polaris10.
drm/amd/powerplay: Update CKS on/ CKS off voltage offset calculation
drm/amd/powerplay: disable FFC.
drm/amd/powerplay: add some definition for FFC feature on polaris.
The following testcase may result in a page table entries with a invalid
CCA field being generated:
static void *bindstack;
static int sysrqfd;
static void protect_low(int protect)
{
mprotect(bindstack, BINDSTACK_SIZE, protect);
}
static void sigbus_handler(int signal, siginfo_t * info, void *context)
{
void *addr = info->si_addr;
write(sysrqfd, "x", 1);
printf("sigbus, fault address %p (should not happen, but might)\n",
addr);
abort();
}
static void run_bind_test(void)
{
unsigned int *p = bindstack;
p[0] = 0xf001f001;
write(sysrqfd, "x", 1);
/* Set trap on access to p[0] */
protect_low(PROT_NONE);
write(sysrqfd, "x", 1);
/* Clear trap on access to p[0] */
protect_low(PROT_READ | PROT_WRITE | PROT_EXEC);
write(sysrqfd, "x", 1);
/* Check the contents of p[0] */
if (p[0] != 0xf001f001) {
write(sysrqfd, "x", 1);
/* Reached, but shouldn't be */
printf("badness, shouldn't happen but does\n");
abort();
}
}
int main(void)
{
struct sigaction sa;
sysrqfd = open("/proc/sysrq-trigger", O_WRONLY);
if (sigprocmask(SIG_BLOCK, NULL, &sa.sa_mask)) {
perror("sigprocmask");
return 0;
}
sa.sa_sigaction = sigbus_handler;
sa.sa_flags = SA_SIGINFO | SA_NODEFER | SA_RESTART;
if (sigaction(SIGBUS, &sa, NULL)) {
perror("sigaction");
return 0;
}
bindstack = mmap(NULL,
BINDSTACK_SIZE,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (bindstack == MAP_FAILED) {
perror("mmap bindstack");
return 0;
}
printf("bindstack: %p\n", bindstack);
run_bind_test();
printf("done\n");
return 0;
}
There are multiple ingredients for this:
1) PAGE_NONE is defined to _CACHE_CACHABLE_NONCOHERENT, which is CCA 3
on all platforms except SB1 where it's CCA 5.
2) _page_cachable_default must have bits set which are not set
_CACHE_CACHABLE_NONCOHERENT.
3) Either the defective version of pte_modify for XPA or the standard
version must be in used. However pte_modify for the 36 bit address
space support is no affected.
In that case additional bits in the final CCA mode may generate an invalid
value for the CCA field. On the R10000 system where this was tracked
down for example a CCA 7 has been observed, which is Uncached Accelerated.
Fixed by:
1) Using the proper CCA mode for PAGE_NONE just like for all the other
PAGE_* pte/pmd bits.
2) Fix the two affected variants of pte_modify.
Further code inspection also shows the same issue to exist in pmd_modify
which would affect huge page systems.
Issue in pte_modify tracked down by Alastair Bridgewater, PAGE_NONE
and pmd_modify issue found by me.
The history of this goes back beyond Linus' git history. Chris Dearman's
commit 351336929c ("[MIPS] Allow setting of
the cache attribute at run time.") missed the opportunity to fix this
but it was originally introduced in lmo commit
d523832cf12007b3242e50bb77d0c9e63e0b6518 ("Missing from last commit.")
and 32cc38229ac7538f2346918a09e75413e8861f87 ("New configuration option
CONFIG_MIPS_UNCACHED.")
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: Alastair Bridgewater <alastair.bridgewater@gmail.com>
Fix an expression in the ACPI PCI IRQ management code added by a
recent commit that overlooked missing parens in it, so the result
of the computation is incorrect in some cases (Sinan Kaya).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=r8BR
-----END PGP SIGNATURE-----
Merge tag 'acpi-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix an expression in the ACPI PCI IRQ management code added by a
recent commit that overlooked missing parens in it, so the result of
the computation is incorrect in some cases (Sinan Kaya)"
* tag 'acpi-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI,PCI,IRQ: correct operator precedence
- Fix a recent intel_pstate regression that caused the number of
wakeups to increase significantly on an idle system in some cases
due to excessive synchronize_sched() invocations (Rafael Wysocki).
- Fix unnecessary invocations of WARN_ON() in the cpufreq core
after cpufreq has been suspended introduced during the 4.6 cycla
(Rafael Wysocki).
- Fix an error code path in the cpufreq-dt-platdev driver that
forgets to drop a reference to a DT node (Masahiro Yamada).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=+apA
-----END PGP SIGNATURE-----
Merge tag 'pm-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Three cpufreq fixes, one in the core (stable-candidate) and two in
drivers (intel_pstate and cpufreq-dt).
Specifics:
- Fix a recent intel_pstate regression that caused the number of
wakeups to increase significantly on an idle system in some cases
due to excessive synchronize_sched() invocations (Rafael Wysocki).
- Fix unnecessary invocations of WARN_ON() in the cpufreq core after
cpufreq has been suspended introduced during the 4.6 cycla (Rafael
Wysocki).
- Fix an error code path in the cpufreq-dt-platdev driver that
forgets to drop a reference to a DT node (Masahiro Yamada)"
* tag 'pm-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Avoid false-positive WARN_ON()s in cpufreq_update_policy()
cpufreq: dt: call of_node_put() before error out
intel_pstate: Do not clear utilization update hooks on policy changes
Pull vfs fixes from Al Viro:
"Tmpfs readdir throughput regression fix (this cycle) + some -stable
fodder all over the place.
One missing bit is Miklos' tonight locks.c fix - NFS folks had already
grabbed that one by the time I woke up ;-)"
[ The locks.c fix came through the nfsd tree just moments ago ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
namespace: update event counter when umounting a deleted dentry
9p: use file_dentry()
ceph: fix d_obtain_alias() misuses
lockless next_positive()
libfs.c: new helper - next_positive()
dcache_{readdir,dir_lseek}(): don't bother with nested ->d_lock
leases on overlayfs.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=K0mr
-----END PGP SIGNATURE-----
Merge tag 'nfsd-4.7-3' of git://linux-nfs.org/~bfields/linux
Pull lockd/locks fixes from Bruce Fields:
"One fix for lockd soft lookups in an error path, and one fix for file
leases on overlayfs"
* tag 'nfsd-4.7-3' of git://linux-nfs.org/~bfields/linux:
locks: use file_inode()
lockd: unregister notifier blocks if the service fails to come up completely
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=PpU9
-----END PGP SIGNATURE-----
Merge tag 'mfd-fixes-4.7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull more MFD fixes from Lee Jones:
"Apologies for missing these from the first pull request.
Final patches fixing Reset API change"
* tag 'mfd-fixes-4.7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
usb: dwc3: st: Use explicit reset_control_get_exclusive() API
phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
phy: miphy28lp: Inform the reset framework that our reset line may be shared
Pull libnvdimm fixes from Dan Williams:
"1/ Two regression fixes since v4.6: one for the byte order of a sysfs
attribute (bz121161) and another for QEMU 2.6's NVDIMM _DSM (ACPI
Device Specific Method) implementation that gets tripped up by new
auto-probing behavior in the NFIT driver.
2/ A fix tagged for -stable that stops the kernel from
clobbering/ignoring changes to the configuration of a 'pfn'
instance ("struct page" driver). For example changing the
alignment from 2M to 1G may silently revert to 2M if that value is
currently stored on media.
3/ A fix from Eric for an xfstests failure in dax. It is not
currently tagged for -stable since it requires an 8-exabyte file
system to trigger, and there appear to be no user visible side
effects"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit: fix format interface code byte order
dax: fix offset overflow in dax_io
acpi, nfit: fix acpi_check_dsm() vs zero functions implemented
libnvdimm, pfn, dax: fix initialization vs autodetect for mode + alignment
Here are a few small staging and iio driver fixes for 4.7-rc6.
Nothing major here, just a number of small fixes, all have been in
linux-next for a while, and the full details are in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iFYEABECABYFAld2lKYPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfsp7EkAn2tK
KAXXdlnEs9jud1JteSphbTwFAJ4zqSIZXrNMS1vsBgujQiLP6r1xXA==
=eYY6
-----END PGP SIGNATURE-----
Merge tag 'staging-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO fixes from Greg KH:
"Here are a few small staging and iio driver fixes for 4.7-rc6.
Nothing major here, just a number of small fixes, all have been in
linux-next for a while, and the full details are in the shortlog"
* tag 'staging-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio:ad7266: Fix probe deferral for vref
iio:ad7266: Fix support for optional regulators
iio:ad7266: Fix broken regulator error handling
iio: accel: kxsd9: fix the usage of spi_w8r8()
staging: iio: accel: fix error check
staging: iio: ad5933: fix order of cycle conditions
staging: iio: fix ad7606_spi regression
iio: inv_mpu6050: Fix use-after-free in ACPI code
Here are two tty fixes for some reported issues. One resolves a crash
in devpts, and the other resolves a problem with the fbcon cursor blink
causing lockups.
Both have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iFYEABECABYFAld2lcUPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspo5MAnjdF
aMlMp7JeHrv9KoEa+lP6rOT6AJ4rrc/tQ0zHCksxMqEDLPNwjnVPbg==
=iFXo
-----END PGP SIGNATURE-----
Merge tag 'tty-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two tty fixes for some reported issues. One resolves a crash
in devpts, and the other resolves a problem with the fbcon cursor
blink causing lockups.
Both have been in linux-next with no reported problems"
* tag 'tty-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
devpts: fix null pointer dereference on failed memory allocation
tty: vt: Fix soft lockup in fbcon cursor blink timer.
Here are a number of small USB and PHY driver fixes for 4.7-rc6.
Nothing major here, all are described in the shortlog below. All have
been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iFYEABECABYFAld2ljcPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspN+sAn28Z
+GbDzyY5XwZ7Qs5/5uPYoGONAKCObDpgZr1A+/EMvDd57gfHWmFqTw==
=uYl3
-----END PGP SIGNATURE-----
Merge tag 'usb-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and PHY fixes from Greg KH:
"Here are a number of small USB and PHY driver fixes for 4.7-rc6.
Nothing major here, all are described in the shortlog below. All have
been in linux-next with no reported issues"
* tag 'usb-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: don't free bandwidth_mutex too early
USB: EHCI: declare hostpc register as zero-length array
phy-sun4i-usb: Fix irq free conditions to match request conditions
phy: bcm-ns-usb2: checking the wrong variable
phy-sun4i-usb: fix missing __iomem *
phy: phy-sun4i-usb: Fix optional gpios failing probe
phy: rockchip-dp: fix return value check in rockchip_dp_phy_probe()
phy: rcar-gen3-usb2: fix unexpected repeat interrupts of VBUS change
usb: common: otg-fsm: add license to usb-otg-fsm
Three fixes:
* Fix use of smp_processor_id() in preemptible code in the IOVA
allocation code. This got introduced with the scalability
improvements in this release cycle.
* A VT-d fix for out-of-bounds access of the iommu->domains
array. The bug showed during suspend/resume.
* AMD IOMMU fix to print the correct device id in the ACPI
parsing code.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=ogRx
-----END PGP SIGNATURE-----
Merge tag 'iommu-fixes-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Three fixes:
- Fix use of smp_processor_id() in preemptible code in the IOVA
allocation code. This got introduced with the scalability
improvements in this release cycle.
- A VT-d fix for out-of-bounds access of the iommu->domains array.
The bug showed during suspend/resume.
- AMD IOMMU fix to print the correct device id in the ACPI parsing
code"
* tag 'iommu-fixes-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Initialize devid variable before using it
iommu/vt-d: Fix overflow of iommu->domains array
iommu/iova: Disable preemption around use of this_cpu_ptr()
'perf probe --del' removes caches when '--cache' is given. Note that
the delete pattern is not the same as for normal events.
If you cached probes with event name, --del "eventname" works as
expected. However, if you skipped it, the cached probes doesn't have
actual event name. In that case --del "probe-desc" is required (wildcard
is acceptable). For example a cache entry has the probe-desc "vfs_read
$params", you can remove it with --del 'vfs_read*'.
-----
# perf probe --cache --list
/[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
vfs_read $params
/usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
getaddrinfo $params
# perf probe --cache --del vfs_read\*
Removed cached event: probe:vfs_read
# perf probe --cache --list
/[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
/usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
getaddrinfo $params
-----
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736021651.27797.10250879847070772920.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Before analyzing debuginfo, try to find a corresponding entry from probe
cache always. This does not depend on --cache, the --cache enables to
store/update cache, but looking up the cache is always enabled.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736019226.27797.16366402884098398857.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
(Another one for the f_path debacle.)
ltp fcntl33 testcase caused an Oops in selinux_file_send_sigiotask.
The reason is that generic_add_lease() used filp->f_path.dentry->inode
while all the others use file_inode(). This makes a difference for files
opened on overlayfs since the former will point to the overlay inode the
latter to the underlying inode.
So generic_add_lease() added the lease to the overlay inode and
generic_delete_lease() removed it from the underlying inode. When the file
was released the lease remained on the overlay inode's lock list, resulting
in use after free.
Reported-by: Eryu Guan <eguan@redhat.com>
Fixes: 4bacc9c923 ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Cc: <stable@vger.kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
