For Odroid C2 I have compiled kernel
4.9.0-rc6-next-20161124-1-gbf7e142
with one additional patch
https://github.com/xypron/kernel-odroid-c2/blob/master/patch/0001-stmmac-RTL8211F-Meson-GXBB-TX-throughput-problems.patch
I repeatedly see faults like the one below:
[ 2557.400796] Unhandled faul
After this patch, perf utilizes builtin clang support to build BPF
script, no longer depend on external clang.
Test:
$ type clang
-bash: type: clang: not found
$ cat ~/.perfconfig
$ echo '#define LINUX_VERSION_CODE 0x040700' > ./test.c
$ cat ./tools/perf/tests/bpf-script-example.c >> ./
This is version 3 of perf builtin clang and perfhook patch series.
Compare to v2 there is only minor changes:
1. BPF map helpers in perf hooks now called 'perf_map_...',
instead of 'jit_helper_map_...'.
(Alexei Starovoitov)
2. Rename bpf_map_{pin,get} to bpf_obj_{pin,get}, make them consi
Makes perf_clang__compile_bpf() actually uses clang jit to compile perf
hooks. Returns a map through perf_clang__compile_bpf(), and set hooks
after bpf_object is created.
After this path jitting takes actions for bpf loader. For example:
$ cat ./test.c
/
Check if basic clang compiling environment is ready.
Doesn't like 'llvm-config --libs' which can returns llvm libraries in
right order and duplicates some libraries if necessary, there's no
correspondence for clang libraries (-lclangxxx). to avoid extra
complexity and to avoid new clang breaking l
Pass a pointer to perf hook functions so they receive context
information created durnig setup.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Olsa
Cc: Zefan Li
Cc: pi3or...@163.com
---
tools/perf/tests/perf-hooks.c | 14 +-
too
Add basic clang support in clang.cpp and test__clang() testcase. The
first testcase checks if builtin clang is able to generate LLVM IR.
tests/clang.c is a proxy. Real testcase resides in
utils/c++/clang-test.cpp in c++ and exports C interface to perf test
subsystem.
Test result:
$ perf test
Newly introduced jit-helpers.[ch] defines a series of helpers which helps
jitted perf hook functions accessing BPF maps defined in their BPF scripts.
The helpers fetches fd of 'struct bpf_map' from 'struct bpf_object' and the
address of 'struct bpf_map_def' in jitted file. 'struct bpf_object' is th
Append declarations of helpers to default include file. All functions
appear in exported_funcs array should be declared here except
test__clang_callback, because it is used for perf test only.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Ols
Use PerfModule wrap llvm::Module and return perf::PerfModule in APIs to
replace llvm::Module. Following commits are going to add new functions
to PerfModule.
getBPFObjectFromModule is merged to a method of perf::PerfModule.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovo
Improve getModuleFromSource() API to accept a cflags list. This feature
will be used to pass LINUX_VERSION_CODE and -I flags.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Olsa
Cc: Zefan Li
Cc: pi3or...@163.com
Link:
http://lkml.kernel.org/r/1474874832-134786-9-git-sen
Automatically include some commonly used macros and struct definitions
into BPF scripts. Script writers are no longer required to define
'SEC' and 'struct bpf_map_def' in each of their scripts.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Ol
PerfModule::doJIT JIT compile perfhook functions and saves result into
a map. Add a test case for it.
At this stage perfhook functions can do no useful things because they
can't invoke external functions and can't return value. Following
commits are going to make improvment.
Don't hook functions
Use a shell script to generate BPF functions declarations from kernel
source code, embed the generated header into a C string. Following
commits will utilizes clang's virtual file system to automatically
include this header to all BPF scripts.
The generated header is wrapped by a BUILTIN_CLANG_NO_
Use Clang's OverlayFileSystem, add '-include' options to make builtin
clang define BPF functions. After this patch BPF script writer needn't
define BPF functions by their own.
Add -DBUILTIN_CLANG_DEFAULT_INCLUDE to builtin clang so when adopting
builtin clang BPF functions can be automatically def
Add necessary c++ flags and link libraries to support builtin clang and
LLVM. Add all llvm and clang libraries, so don't need to worry about
clang changes its libraries setting. However, linking perf would take
much longer than usual.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: He Kuang
Add a new API to libbpf, caller is able to get bpf_map through the
offset of bpf_map_def to 'maps' section.
The API will be used to help jitted perf hook code find fd of a map.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: Jiri Olsa
Cc: Zefan Li
Cc: pi3or...
Utilize clang's OverlayFileSystem facility, allow CompilerInstance to
access real file system.
With this patch '#include' directive can be used.
Add a new getModuleFromSource for real file.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Olsa
Identify BPF functions, JIT functions and maps during init. Functions in
section starting with "perfhook:" are JIT functions. They will be JIT
compiled and hooked at perfhooks.
During init of PerfModule, mark JIT functions as AvailableExternallyLinkage.
LLVM skips functions with linkage like this
Following commits will use builtin clang to compile BPF script.
llvm__get_kbuild_opts() and llvm__get_nr_cpus() are extracted to help
building '-DKERNEL_VERSION_CODE' and '-D__NR_CPUS__' macros.
Doing object dumping in bpf loader, so futher builtin clang compiling
needn't consider it.
Signed-off-
Pass -DLINUX_VERSION_CODE, -D__NR_CPUS__, llvm.clang-opt config options
and CFLAGS detected by kbuild detector to builtin clang so BPF scripts
can use kernel headers and user defined options like external clang
compiler.
Test:
# perf record -v --dry-run -e tools/perf/tests/bpf-script-test-kbuild
You are a recipient to Mrs Julie Leach Donation of $3 million USD. Contact (
julieleac...@gmail.com ) for claims.
Check if basic LLVM compiling environment is ready.
Use llvm-config to detect include and library directories. Avoid using
'llvm-config --cxxflags' because its result contain some unwanted flags
like --sysroot (if LLVM is built by yocto).
Use '?=' to set LLVM_CONFIG, so explicitly passing LLVM_CO
bpf__map_fd() is introduced to retrive fd of a BPF map through its
offset in BPF object. This function is going be used in further
commits which allow scripts jitted by builtin clang access BPF maps.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: J
After this patch perf hooks can retrive pid of perf itself by calling
getpid. It is important for excluding event from perf.
This commit is also an example to show how to export more helpers to
hooked script.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Ku
After this patch functions attached on perf hooks is allowed to invoke
external functions. Add a testcase for this feature.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Olsa
Cc: Zefan Li
Cc: pi3or...@163.com
---
tools/perf/tests/Build
getBPFObjectFromModule() is introduced to compile LLVM IR(Module)
to BPF object. Add new testcase for it.
Test result:
$ ./buildperf/perf test -v clang
51: Test builtin clang support :
51.1: Test builtin clang compile C source to IR :
--- start --
If clang changes its working directory, relative path passed to
perf_clang__compile_bpf() becomes invalid. Before running clang,
convert it to absolute path so file can be found even working directory
is changed.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He
During jitting, find the lowest address in maps section and store its
value to _map_base. Pass its value out through perf_clang__compile_bpf().
map_base is useful for jitted functions accessing BPF maps.
Signed-off-by: Wang Nan
Cc: Arnaldo Carvalho de Melo
Cc: Alexei Starovoitov
Cc: He Kuang
C
Perf hooks allow hooking user code at perf events. They can be used for
manipulation of BPF maps, taking snapshot and reporting results. In this
patch two perf hook points are introduced: record_start and record_end.
To avoid buggy user actions, a SIGSEGV signal handler is introduced into
'perf re
Allow C++ code to use util.h and tests/llvm.h. Let 'perf test' compile a
real BPF script.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: He Kuang
Cc: Jiri Olsa
Cc: Zefan Li
Cc: pi3or...@163.com
Link:
http://lkml.kernel.org/r/1474874832-134786-10-git-send-email-wangn...@huawei.com
Signed-
Add more BPF map operations to libbpf. Also add bpf_obj_{pin,get}(). They
can be used on not only BPF maps but also BPF programs.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: Arnaldo Carvalho de Melo
Cc: Joe Stringer
Cc: Li Zefan
---
tools/lib/bpf/bpf.c | 56 +++
Similar to other classes defined in libbpf.h (map and program), allow
'object' class has its own private data.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: Arnaldo Carvalho de Melo
Cc: Li Zefan
---
tools/lib/bpf/libbpf.c | 23 +++
tools/lib/bpf/libbpf.h | 5 +
2
Hi,
On (11/25/16 17:35), Minchan Kim wrote:
> [1] moved revalidate_disk call out of init_lock to avoid lockdep
> false-positive splat. However, [2] remove init_lock in IO path
> so there is no worry about lockdep splat. So, let's restore it.
> This patch need to set BDI_CAP_STABLE_WRITES atomical
Hello Minchan,
On (11/25/16 17:35), Minchan Kim wrote:
[..]
> +static void zram_revalidate_disk(struct zram *zram)
> +{
> + revalidate_disk(zram->disk);
> + zram->disk->queue->backing_dev_info.capabilities |=
> + BDI_CAP_STABLE_WRITES;
> +}
> +
> /*
> * Check if request is w
Hi Peter,
[auto build test ERROR on kbuild/for-next]
[also build test ERROR on v4.9-rc6 next-20161125]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Peter-Foley/Fixes-for-compiling-with-clang
Ignore patch version...comments below
Will resend it
On 24.11.2016 19:38, Boyan Vladinov wrote:
Fixes sysfs entries user/group modes and coding style warnings
found by checkpatch.pl tool. Also use the IIO_DEVICE_ATTR_[RO|RW] and
macros to create device attributes
Signed-off-by: Boyan Vladinov
You are a recipient to Mrs Julie Leach Donation of $3 million USD. Contact (
julieleac...@gmail.com ) for claims.
Move definition of HOSTCC to allow use of cc-name.
Suppress warnings about unsupported optimization options.
Disable clang's integrated assembler which is incompatible with kernel
asm constructs.
Signed-off-by: Peter Foley
---
Makefile | 23 +--
1 file changed, 13 insertions(
Jose Bollo wrote:
> +/**
> + * is_valid_utf8 - Is buffer a valid utf8 string?
> + *
> + * @buffer: the start of the string
> + * @length: length in bytes of the buffer
> + *
> + * Return 1 when valid or else returns 0
> + */
Do we really need to check UTF-8 inside kernel? What do you do if
people
fix drivers/staging/most/mostcore/core.c coding style
1. move static from MACRO to function name
2. change symbolic permission such as 'S_IRUGO' to number
>From 3e1dba83090c58251aae1dc7aca431bb11632a98 Mon Sep 17 00:00:00 2001
From: wenhungyang
Date: Wed, 23 Nov 2016 21:55:36 +0800
Subject: [c15
msleep(1~20) may not do what the caller intends, and will often sleep longer.
(~20 ms actual sleep for any value given in the 1~20ms range)
This is not the desired behaviour for many cases like device resume time,
device suspend time, device enable time, data reading time, etc.
Thus, change msleep
On 11/23/16 11:30 PM, Namhyung Kim wrote:
> Hi David,
>
> On Wed, Nov 23, 2016 at 10:13:46PM -0500, David Ahern wrote:
>> On 11/23/16 8:11 PM, Namhyung Kim wrote:
>>> The sched_switch event always captured from the scheduler function. So
>>> it'd be great omit them from the callchain. This patch
On Wed, Nov 23, 2016 at 03:23:50PM +0100, Thomas Gleixner wrote:
> On Fri, 18 Nov 2016, Fenghua Yu wrote:
> Reworked untested patch below.
The reworked patch passes my baisc tests. But I have a quesiton on
rdt_move_group_tasks() (please see below).
>
> Thanks,
>
> tglx
>
> 8<
You are a recipient to Mrs Julie Leach Donation of $3 million USD. Contact (
julieleac...@gmail.com ) for claims.
From: Arnd Bergmann
Date: Thu, 24 Nov 2016 17:28:12 +0100
> gcc-7 detects a short memset in mvpp2, introduced in the original
> merge of the driver:
>
> drivers/net/ethernet/marvell/mvpp2.c: In function 'mvpp2_cls_init':
> drivers/net/ethernet/marvell/mvpp2.c:3296:2: error: 'memset' used with le
From: Arnd Bergmann
Date: Thu, 24 Nov 2016 17:26:22 +0100
> irda_get_mtt() returns a hardcoded '1' in some cases,
> and with gcc-7, we get a build error because this triggers a
> compile-time check in udelay():
>
> drivers/net/irda/w83977af_ir.o: In function `w83977af_hard_xmit':
> w83977af_
> -Original Message-
> From: Andy Shevchenko [mailto:andy.shevche...@gmail.com]
> Sent: Friday, November 25, 2016 12:03 PM
> To: Vadim Pasternak
> Cc: Thomas Gleixner ; dvh...@infradead.org; platform-
> driver-...@vger.kernel.org; x...@kernel.org; linux-kernel@vger.kernel.org;
> j...@res
From: Geliang Tang
Date: Thu, 24 Nov 2016 21:58:32 +0800
> Drop duplicate header delay.h from adf7242.c.
>
> Signed-off-by: Geliang Tang
Applied.
From: Geliang Tang
Date: Thu, 24 Nov 2016 21:58:33 +0800
> Drop duplicate header delay.h from mlx5/core/main.c.
>
> Signed-off-by: Geliang Tang
Applied.
From: Geliang Tang
Date: Thu, 24 Nov 2016 21:58:29 +0800
> Drop duplicate header seq_file.h from ibmvnic.c.
>
> Signed-off-by: Geliang Tang
Applied.
From: Dan Carpenter
Date: Thu, 24 Nov 2016 14:03:45 +0300
> We verified that MLX5_FLOW_CONTEXT_ACTION_COUNT was set on the first
> line of the function so we don't need to check again here.
>
> Signed-off-by: Dan Carpenter
Applied.
From: sunil.kovv...@gmail.com
Date: Thu, 24 Nov 2016 14:47:59 +0530
> This patch series adds support for SLM modules present on 80xx
> silicon, enables ramdom early discard, backpressure generation,
> PFC and some ethtool changes to display supported link modes e.t.c.
Series applied to net-next.
During a "perf buildid-cache --add" command, the section
".note.stapsdt" of the "added" binary is scanned in order to list the
available SDT markers available in a binary. The parts containing the
probes arguments were left unscanned.
The whole section is now parsed; the probe arguments are extrac
An sdt probe can be associated with arguments but they were not passed
to the user probe tracing interface (uprobe_events); this patch adapts
the sdt argument descriptors according to the uprobe input format.
As the uprobe parser does not support scaled address mode, perf will
skip arguments which
Hi Arnaldo,
Here is another patch set which fixes the issues you noticed.
Thank you.
Alexis.
Alexis Berlemont (2):
perf sdt: add scanning of sdt probles arguments
perf probe: add sdt probes arguments into the uprobe cmd string
tools/perf/arch/x86/util/perf_regs.c | 18
tools/perf/ut
On Fri, 25 Nov 2016 10:00:46 -0800
Linus Torvalds wrote:
> On Thu, Nov 24, 2016 at 4:40 PM, Nicholas Piggin wrote:
> >>
> >> Yes, manual "marking" is never going to be a viable solution.
> >
> > I guess it really depends on how exactly you want to use it. For distros
> > that do stable ABI but
From: "Michael S. Tsirkin"
Date: Wed, 23 Nov 2016 22:48:19 +0200
> I would appreciate review to confirm the function doesn't
> do anything unsafe though.
>
> In particular, should this use __hlist_for_each_rcu instead?
> I note that __hlist_for_each_rcu does rcu_dereference
> internally, which i
On Sat, Nov 26 2016, Mark Brown wrote:
> [ Unknown signature status ]
> On Tue, Nov 22, 2016 at 09:40:07AM +1100, NeilBrown wrote:
>
>> I agree that the question of where the responsibility for information
>> aggregation lies is open for discussion. If fact all details on how
>> things should work
On 2016/11/25 17:46, Arnd Bergmann wrote:
> On Friday, November 25, 2016 1:46:04 PM CET Zefan Li wrote:
>> On 2016/11/25 12:55, Kirtika Ruchandani wrote:
>>> 'struct cpuset* cs' that is set but not used, was introduced in commit
>>> 1f7dd3e5a6e4 ("cgroup: fix handling of multi-destination migration
On Nov 18, 2016, at 09:48, James Simmons wrote:
>
> Remove the zero comparisions in the libcfs headers.
>
> Signed-off-by: James Simmons
> ---
> .../lustre/include/linux/libcfs/libcfs_crypto.h|2 +-
> .../lustre/include/linux/libcfs/libcfs_fail.h |4 +-
> .../lustre/include/linux
On Fri, Nov 25, 2016 at 2:34 PM, Jason Gunthorpe
wrote:
> On Fri, Nov 25, 2016 at 12:16:30PM -0500, Serguei Sagalovitch wrote:
>
>> b) Allocation may not have CPU address at all - only GPU one.
>
> But you don't expect RDMA to work in the case, right?
>
> GPU people need to stop doing this windo
Hello.
On 25.11.2016 20:53, Robert Jarzmik wrote:
> Stefan Schmidt writes:
>
>> Hello.
>>
>> On 24.11.2016 17:29, Arnd Bergmann wrote:
>>> The camera_supply_dummy_device definition is shared between a780 and a910,
>>> but only provided when the first is enabled and fails to build for a
>>> confi
On Fri, Nov 25, 2016 at 1:48 PM, Theodore Ts'o wrote:
>
> There is a reason why people want to be able to do that, and that's
> because kprobes doesn't give you access to the arguments and return
> codes to the functions.
Honestly, that's simply not a good reason.
What if everybody did this? Do
On Monday, November 21, 2016 3:59:05 PM CET Sylvain Lemieux wrote:
> On Fri, 2016-11-18 at 22:21 +0800, Geliang Tang wrote:
> > Drop duplicate header device.h from phy3250.c.
> >
> > Signed-off-by: Geliang Tang
> Reviewed-by: Sylvain Lemieux
>
Applied into arm-soc/next/fixes-non-critical, I s
On Friday, November 18, 2016 10:21:10 PM CET Geliang Tang wrote:
> Drop duplicate header gpio.h from dsmg600-setup.c.
>
> Signed-off-by: Geliang Tang
>
Applied to arm-soc/next/fixes-non-critical, thanks
Arnd
On Monday, November 14, 2016 7:44:38 PM CET Alexandre Belloni wrote:
> Drivers for 4.10:
>
> - few fixes for the memory drivers
> - minimal security module driver
> - support for the Secure SRAM
>
For reference, Olof pulled this into next/drivers on Nov 18.
Arnd
On Nov 24, 2016, at 04:12, Dan Carpenter wrote:
>
> We should free "desc" before returning NULL.
>
> Signed-off-by: Dan Carpenter
Reviewed-by: Andreas Dilger
> diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c
> b/drivers/staging/lustre/lustre/ptlrpc/client.c
> index ac959ef..80474
On Thursday, November 10, 2016 4:09:31 PM CET Jesper Nilsson wrote:
> Please pull the below signed tag for a trio of minor changes
> adding PCIe for the ARM ARTPEC SoC.
>
> Thanks!
>
> /Jesper
>
> The following changes since commit bc33b0ca11e3df46a4fa7639ba488c9d4911:
>
> Linux 4.9-rc4 (
We're on rc7 now. Linus said in LWN that there might be a rc8 this time.
I'll try to get this pulled in 4.9-rc8 I hope, or sometime in 4.10...
it is just a
few lines of code that I don't think can be reached. Sorry for the confusion.
-Mike
On Fri, Nov 25, 2016 at 4:51 PM, Dan Carpenter wrote:
>
Hi Gregory,
[auto build test ERROR on ]
url:
https://github.com/0day-ci/linux/commits/Gregory-CLEMENT/Support-Armada-37xx-SoC-ARMv8-64-bits-in-mvneta-driver/20161126-050621
base:
config: parisc-allmodconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
On Fri, Nov 25, 2016 at 05:33:23PM +0100, Michael Kerrisk (man-pages) wrote:
> Okay -- you're really quite the ASCII artist. And somehow,
> I think you needed to compose the mail in LaTeX. But thanks
> for the detail. It's helpful, for me at least.
Hehe, its been a while since I did LaTeX, so I'd
On Monday, October 31, 2016 7:24:46 PM CET Bartlomiej Zolnierkiewicz wrote:
> On Monday, October 31, 2016 07:14:13 PM Bartlomiej Zolnierkiewicz wrote:
> > On Monday, October 31, 2016 03:46:22 PM Russell King - ARM Linux wrote:
> > > On Wed, Oct 26, 2016 at 07:01:12PM +0200, Bartlomiej Zolnierkiewic
On Wed, Nov 23, 2016 at 06:01:45PM -0500, James Simmons wrote:
> From: Jinshan Xiong
>
> Early launch page LRU work in osc_io_rw_iter_init();
> Change the page LRU shrinking policy by OSC attributes;
> Delete the contented lock osc_object::oo_seatbelt
>
The cli_name() stuff should be in a separ
On Friday, November 25, 2016 8:48:53 PM CET Robert Jarzmik wrote:
> Arnd Bergmann writes:
>
> > The camera_supply_dummy_device definition is shared between a780 and a910,
> > but only provided when the first is enabled and fails to build for a
> > configuration with only a910:
> >
> > arch/arm/ma
On Fri, Nov 25, 2016 at 03:59:45PM +0100, Silvio Fricke wrote:
> ... and move to core-api folder.
>
> Signed-off-by: Silvio Fricke
> ---
> Documentation/atomic_ops.txt => Documentation/core-api/atomic_ops.rst | 777
> +---
> Do
You are a recipient to Mrs Julie Leach Donation of $3 million USD. Contact
(julieleac...@gmail.com ) for claims.
pruss_probe() enables gdev->pruss_clk, but there is no clk_disable()
in the driver.
The patch adds clk_disable() to pruss_cleanup() and error handling for
clk_enable().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov
---
drivers/uio/uio_pruss.c
On 11/25/2016 05:08 PM, Vlastimil Babka wrote:
> On 11/25/2016 02:07 PM, Kirill A. Shutemov wrote:
>>> --- a/mm/debug.c
>>> +++ b/mm/debug.c
>>> @@ -59,6 +59,10 @@ void __dump_page(struct page *page, const char *reason)
>>>
>>> pr_emerg("flags: %#lx(%pGp)\n", page->flags, &page->flags);
>>>
On Thu, Nov 24, 2016 at 07:31:11AM -0500, Mike Marshall wrote:
> This seems like a good and proper patch to me, and simple too.
> But like all changes, it needs tested. While I was testing it, I
> discovered a regression in the associated userspace code. I
> "bisected" (we use SVN for the userspace
On Fri, Nov 25, 2016 at 09:54:05PM +0100, Michael Kerrisk (man-pages) wrote:
> So, part of what I was struggling with was what you meant by cfs-cgroup.
> Do you mean the CFS bandwidth control features added in Linux 3.2?
Nope, /me digs around for a bit... around here I suppose:
68318b8e0b61 ("Ho
Hi Linus,
Please pull from the tag
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
acpi-4.9-rc7
with top-most commit 7e5c07af8693e72b23aefb70da88b31b30c35b22
Merge branches 'acpi-sleep-fixes' and 'acpi-wdat-fixes'
on top of commit 9c763584b7c8911106bb77af7e648bef09af9d80
On Fri, Nov 25, 2016 at 11:51:26AM -0800, Linus Torvalds wrote:
> We do have filesystem code that is just disgusting. As an example:
> fs/afs/ tends to have these crazy "_enter()/_exit()" macros in every
> single function. If you want that, use the function tracer. That seems
> to be just debugging
Track freed memory as well as allocations and show the net in the
summary.
Signed-off-by: David Ahern
---
tools/perf/builtin-kmem.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index f184ecf9b0b3..cd662dd8e
On 11/25/2016 10:08 PM, Michael S. Tsirkin wrote:
> On Fri, Nov 25, 2016 at 05:49:45PM +0100, Christian Borntraeger wrote:
>> On 11/25/2016 05:17 PM, Peter Zijlstra wrote:
>>> On Fri, Nov 25, 2016 at 04:10:04PM +, Mark Rutland wrote:
On Fri, Nov 25, 2016 at 04:21:39PM +0100, Dmitry Vyukov
From: David Ahern
Add option to allow user to control analysis window. e.g., collect data
for time window and analyze a segment of interest within that window.
Signed-off-by: David Ahern
---
tools/perf/Documentation/perf-kmem.txt | 7 +++
tools/perf/builtin-kmem.c | 24 ++
From: David Ahern
Add option to allow user to control analysis window. e.g., collect data
for some amount of time and analyze a segment of interest within that
window.
Signed-off-by: David Ahern
---
tools/perf/Documentation/perf-script.txt | 7 +++
tools/perf/builtin-script.c
From: David Ahern
Add option to allow user to control analysis window. e.g., collect data
for time window and analyze a segment of interest within that window.
Signed-off-by: David Ahern
---
tools/perf/Documentation/perf-report.txt | 7 +++
tools/perf/builtin-report.c | 14 ++
From: David Ahern
Add option to allow user to control analysis window. e.g., collect data
for time window and analyze a segment of interest within that window.
Signed-off-by: David Ahern
---
tools/perf/Documentation/perf-sched.txt | 8 ++
tools/perf/builtin-sched.c | 51 +
On Wednesday, November 23, 2016 9:59:14 AM CET Patrice Chotard wrote:
> STi defconfig fix:
>
> Enable HVA (Hardware Video Accelerator) video encoder
> driver for STMicroelectronics SoC.
Defconfig changes like this don't seem particularly urgent. Unless
there is a good reason, I'd suggest putting
From: David Ahern
Code move only; no functional change intended.
Signed-off-by: David Ahern
---
tools/perf/util/time-utils.c | 35 ++-
tools/perf/util/time-utils.h | 2 ++
tools/perf/util/util.c | 33 -
tools/perf/util/util
From: David Ahern
Add function to parse a user time string of the form ,
where start and stop are time in sec.nsec format. Both start and stop
times are optional.
Add function to determine if a sample time is within a given time
time window of interest.
Signed-off-by: David Ahern
---
tools/pe
From: David Ahern
This series allows users to collect data and analyze a time window of
interest within the file.
David Ahern (6):
perf tool: Add time-based utility functions
perf tool: Move parse_nsec_time to time-utils.c
perf script: Add option to specify time window of interest
perf s
On Wednesday, November 23, 2016 9:59:16 AM CET Patrice Chotard wrote:
> STi DT fix:
>
> The I2C nodes are missing #address-cells and #size-cells.
> This is causing warning at device tree compilation when
> some I2C device sub-nodes are defined.
>
>
Pulled into fixes branch, thanks!
Arn
Hi Stefan,
On Thu, Nov 24, 2016 at 11:10:09PM +0100, Stefan Schmidt wrote:
> Daniel, Harald, if one of you is still interested in these and what to
> pick up the work again, please speak up now. :)
I have no interest, motivtaion nor time to still work on ezx support. I
guess the number of people
On 25/11/16 21:10, David Miller wrote:
> From: Colin King
> Date: Wed, 23 Nov 2016 11:02:44 +
>
>> From: Colin Ian King
>>
>> Currently if txq_info->uldtxq cannot be allocated then
>> txq_info->txq is being kfree'd (which is redundant because it
>> is NULL) instead of txq_info. Fix this by i
On Mon, Nov 21, 2016 at 07:01:36AM +0100, Juergen Gross wrote:
> On 19/11/16 19:22, Quentin Lambert wrote:
> > Most error branches following the call to kmalloc contain
> > a call to kfree. This patch add these calls where they are
> > missing.
> >
> > This issue was found with Hector.
> >
> > Si
Here's a really preliminary patch to allow inode numbers to be constant across
copy ups and be consistent between st_ino and d_ino.
It only works if underlying lower and upper dirs are all on the same filesystem
(so there's only a single inode namespace to deal with).
Performance of readdir is pr
From: Geliang Tang
Date: Wed, 23 Nov 2016 22:45:43 +0800
> @@ -536,11 +536,7 @@ static struct platform_driver davinci_mdio_driver = {
> .remove = davinci_mdio_remove,
> };
>
> -static int __init davinci_mdio_init(void)
> -{
> - return platform_driver_register(&davinci_mdio_driver);
>
FYI, we noticed the following commit:
commit 68ab21008a656abeb1fe2c7117a67eeab4d68ded ("mm: ovl: copy-up on
MAP_SHARED")
url:
https://github.com/0day-ci/linux/commits/Miklos-Szeredi/overlayfs-fix-ro-rw-fd-data-inconsistecies/20161124-233654
base: https://git.kernel.org/pub/scm/linux/kernel/git/m
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