Quoting Evan Green (2018-11-29 14:13:55)
> Move #clock-cells into the child node and set it to 0 to conform to the
> proper binding specification.
>
> Signed-off-by: Evan Green
> ---
Reviewed-by: Stephen Boyd
Quoting Evan Green (2018-11-29 14:13:56)
> Move #clock-cells into the child node for instances of the qcom-qmp-phy
> nodes, and set it to zero, in accordance with the proper bindings. PHYs
> that don't provide clocks don't have #clock-cells, and so are left alone.
>
> Signed-off-by: Evan Green
>
Quoting Evan Green (2018-11-29 14:13:57)
> Register a simple clock provider for the PHY pipe clock sources so that
> device tree users can point at these clocks via phandles to the lane
> nodes.
>
> Signed-off-by: Evan Green
> ---
Reviewed-by: Stephen Boyd
Quoting Jianxin Pan (2018-11-15 04:18:30)
> diff --git a/include/dt-bindings/clock/amlogic,mmc-clkc.h
> b/include/dt-bindings/clock/amlogic,mmc-clkc.h
> new file mode 100644
> index 000..162b949
> --- /dev/null
> +++ b/include/dt-bindings/clock/amlogic,mmc-clkc.h
> @@ -0,0 +1,17 @@
> +/* SPDX-
Booting this Huawei TaiShan 2280 arm64 server generated this lockdep
warning.
[0.00] lockdep_assert_cpus_held+0x50/0x60
[0.00] static_key_enable_cpuslocked+0x30/0xe8
[0.00] arch_timer_check_ool_workaround+0x128/0x2d0
[0.00] arch_timer_acpi_init+0x274/0x6ac
[
Hello, Ingo,
This pull request contains the following changes:
1. Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.
http://lkml.kernel.org/r/2018193156.ga3...@linux.ibm.com
2. Replace of calls to RCU-bh and RCU-sched update-side functions
to their
This patch uses the PMU driver configuration held in event::hw::drv_config
to select a sink for each event that is created (the old sysFS way of
working is kept around for backward compatibility).
By proceeding in this way a sink can be used by multiple sessions
without having to play games with e
When pmu::setup_aux() is called the coresight PMU needs to know which
sink to use for the session by looking up the information in the
drv_config field of the hw_perf_event structure.
As such simply replace the cpu information by the complete perf_event
structure and change all affected customers.
In the coresight world there can be more than one sink to aggregate
trace data generated by CPUs, hence the need for users to select which
one to use from the perf command line.
Up until now sysfs was used to communicate sink information to the
kernel but that was never the right way to proceed be
The communication of sink information for a trace session doesn't work when
more than one CPU is involved in the scenario due to the static nature of
sysfs. As such communicate the sink information to each event by using the
an ioctl command. The information sent to the kernel is the component's
Enric has volunteered to help me with maintaining chrome-platform
as we change the development model toward strictly upstream-first for
any chrome-platform and cros_ec driver.
Signed-off-by: Benson Leung
Signed-off-by: Enric Balletbo i Serra
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
Adding a new IOCTL command to communicate PMU specific configuration to
PMU kernel drivers. This can be anything a PMU might need for
configuration that doesn't fit in the perf_event_attr structure, such
as the CoreSight sink to use for a session.
Signed-off-by: Mathieu Poirier
---
include/uapi
This patch adds the mechanic needed for user space to send PMU specific
configuration to the kernel driver using an ioctl() command. That way
events can keep track of options that don't fit in the perf_event_attr
structure like the selection of a CoreSight sink to use for the session.
Signed-off-
Make the perf_evsel available to the PMU driver configuration code. That
way function perf_evsel__run_ioctl() can be used from there and
information pertaining to the perf_evsel_config_term is still available.
Signed-off-by: Mathieu Poirier
---
tools/perf/arch/arm/util/cs-etm.c | 22 +++
On Mon, Dec 03, 2018 at 04:41:50PM +, Lorenzo Pieralisi wrote:
> On Thu, Nov 22, 2018 at 04:53:54PM +0800, Hanjie Lin wrote:
>
> [...]
>
> > +static int meson_pcie_rd_own_conf(struct pcie_port *pp, int where, int
> > size,
> > + u32 *val)
> > +{
> > + struct dw_
On Mon, 3 Dec 2018, Linus Torvalds wrote:
> Side note: I think maybe people should just look at that whole
> compaction logic for that block, because it doesn't make much sense to
> me:
>
> /*
> * Checks for costly allocations with __GFP_NORETRY, which
>
Hi,
We are seeing hard lockup warnings caused by CFS bandwidth control code. The
test case below fails almost immediately on a reasonably large (144 thread)
POWER9 guest with:
watchdog: CPU 80 Hard LOCKUP
watchdog: CPU 80 TB:1134131922788, last heartbeat TB:1133207948315 (1804ms ago)
Modules link
Hello, Ingo!
This series contains updates to the Linux kernel's formal memory model
in tools/memory-model. These patches are ready for inclusion into -tip.
1. Model smp_mb__after_unlock_lock(), courtesy of Andrea Parri.
2. Add scripts to check github litmus tests.
3. Make script
From: "Paul E. McKenney"
The "--jobs" argument to the litmus-test scripts is similar to the "-jN"
argument to "make", so this commit allows the "-jN" form as well. While
in the area, it also prohibits the various forms of "-j0".
Suggested-by: Alan Stern
Signed-off-by: Paul E. McKenney
---
to
On Thu, Nov 29, 2018 at 09:41:56PM +0800, Jian Hu wrote:
> Add new clock controller compatible and dt-bingdings headers
> for the Everything-Else domain of the g12a SoC
>
> Signed-off-by: Jian Hu
> ---
> .../bindings/clock/amlogic,gxbb-clkc.txt | 1 +
> include/dt-bindings/clock/g12a-
From: "Paul E. McKenney"
The https://github.com/paulmckrcu/litmus repository contains a large
number of C-language litmus tests that include "Result:" comments
predicting the verification result. This commit adds a number of scripts
that run tests on these litmus tests:
checkghlitmus.sh:
On December 3, 2018 2:38:11 AM PST, Juergen Gross wrote:
>In case a broken boot loader doesn't clear its struct boot_params clear
>rsdp_addr in sanitize_boot_params().
>
>This fixes commit e6e094e053af75 ("x86/acpi, x86/boot: Take RSDP
>address from boot params if available") e.g. for the case of
From: Andrea Parri
>From the header comment for smp_mb__after_unlock_lock():
"Place this after a lock-acquisition primitive to guarantee that
an UNLOCK+LOCK pair acts as a full barrier. This guarantee applies
if the UNLOCK and LOCK are executed by the same CPU or if the
UNLOCK and LO
On Mon, 3 Dec 2018, Anurag Kumar Vulisha wrote:
> >On Mon, 3 Dec 2018, Anurag Kumar Vulisha wrote:
> >
> >> >First of all, if some sort of deadlock causes a transfer to fail to
> >> >complete, the host is expected to cancel and restart it. Not the
> >> >gadget.
> >> >
> >>
> >> Thanks for spendin
On Sun, Dec 02, 2018 at 09:25:02AM +0530, Taniya Das wrote:
> Add QCOM cpufreq firmware device bindings for Qualcomm Technology Inc's
> SoCs. This is required for managing the cpu frequency transitions which are
> controlled by the hardware engine.
>
> Signed-off-by: Taniya Das
> ---
> .../bindi
Hello,
syzbot found the following crash on:
HEAD commit:d8f190ee836a Merge branch 'akpm' (patches from Andrew)
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13d5f29340
kernel config: https://syzkaller.appspot.com/x/.config?x=4602730af4f872ef
dashboar
Hi,
* Dmitry Torokhov [181203 19:24]:
> On Sun, Dec 02, 2018 at 05:29:33PM -0800, Tony Lindgren wrote:
...
> > Note that we now must also disable OMAP4_DEF_IRQENABLE_LONGKEY as it
> > should not be used together with debounce according to the TRM.
The above statement is no longer true, it's left
On Mon, Dec 3, 2018 at 2:38 PM Stephen Boyd wrote:
>
> Quoting Evan Green (2018-11-29 14:13:57)
> > Register a simple clock provider for the PHY pipe clock sources so that
> > device tree users can point at these clocks via phandles to the lane
> > nodes.
> >
> > Signed-off-by: Evan Green
> > ---
On 2018/12/03 15:04:11 -0800, Paul E. McKenney wrote:
> Hello, Ingo!
>
> This series contains updates to the Linux kernel's formal memory model
> in tools/memory-model. These patches are ready for inclusion into -tip.
>
> 1.Model smp_mb__after_unlock_lock(), courtesy of Andrea Parri.
>
> 2.
On Thu, Nov 29, 2018 at 5:22 PM Daniel Walsh wrote:
> On 11/29/18 2:47 PM, Miklos Szeredi wrote:
> > On Thu, Nov 29, 2018 at 5:14 PM Stephen Smalley wrote:
> >
> >> Possibly I misunderstood you, but I don't think we want to copy-up on
> >> permission denial, as that would still allow the mounter
From: Jérôme Glisse
System with complex memory topology needs a more versatile memory
topology description than just node where a node is a collection of
memory and CPU. In heterogeneous memory system we consider four
types of object:
- target: which is any kind of memory
- initiator:
On Thu, Nov 29, 2018 at 7:34 PM Luis Chamberlain wrote:
>
> On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> > diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
> > index cced829460427..bf90e678b3d71 100644
> > --- a/arch/um/kernel/trap.c
> > +++ b/arch/um/kernel/trap.c
From: Jérôme Glisse
Heterogeneous memory system are becoming more and more the norm, in
those system there is not only the main system memory for each node,
but also device memory and|or memory hierarchy to consider. Device
memory can comes from a device like GPU, FPGA, ... or from a memory
only
Quoting Matti Vaittinen (2018-11-30 02:50:22)
> Hello Stephen,
>
> Thanks a bunch for taking the time and reviewing this!
>
> On Fri, Nov 30, 2018 at 12:54:10AM -0800, Stephen Boyd wrote:
> > Quoting Matti Vaittinen (2018-11-13 03:55:58)
> > > With MFD devices the clk properties may be contained
From: Jérôme Glisse
Add documentation to what is HMS and what it is for (see patch content).
Signed-off-by: Jérôme Glisse
Cc: Rafael J. Wysocki
Cc: Ross Zwisler
Cc: Dan Williams
Cc: Dave Hansen
Cc: Haggai Eran
Cc: Balbir Singh
Cc: Aneesh Kumar K.V
Cc: Benjamin Herrenschmidt
Cc: Felix Ku
From: Jérôme Glisse
A target is some kind of memory, it can be regular main memory or some
more specialize memory like CPU's HBM (High Bandwidth Memory) or some
device's memory.
Some target memory might not be accessible by all initiators (anything
that can trigger memory access). For instance s
From: Jérôme Glisse
This patch add bind command to hbind() ioctl, this allow to bind a
range of virtual address to given list of target memory. New memory
allocated in the range will try to use memory from the target memory
list.
Note that this patch does not modify existing page fault path and
From: Jérôme Glisse
An initiator is anything that can initiate memory access, either a CPU
or a device. Here CPUs and devices are treated as equals.
See HMS Documentation/vm/hms.txt for further detail..
Signed-off-by: Jérôme Glisse
Cc: Rafael J. Wysocki
Cc: Ross Zwisler
Cc: Dan Williams
Cc:
[Forwarding this to linux-pci since nobody really monitors the bugzilla]
Possibly the same issue reported here:
https://bugzilla.kernel.org/show_bug.cgi?id=109691
https://bugzilla.kernel.org/show_bug.cgi?id=111601
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1588428/
https://lore.
From: Jérôme Glisse
A bridge connect two links with each others and apply only to listed
initiators. With links, this allows to describe any kind of system
topology ie any kind of directed graph.
Moreover with bridges the userspace can choose to use different bridges
to load balance bandwidth us
From: Jérôme Glisse
Register main memory as target under HMS scheme. Memory is registered
per node (one target device per node). We also create a default link
to connect main memory and CPU that are in the same node. For details
see Documentation/vm/hms.rst.
This is done to allow application to
From: Jérôme Glisse
This patch add infrastructure to track heterogeneous memory policy
within the kernel. Policy are defined over range of virtual address
of a process and attach to the correspond mm_struct.
User can reset to default policy for range of virtual address using
hbind() default comm
From: Jérôme Glisse
With the advance of heterogeneous computing and the new kind of memory
topology that are now becoming more widespread (CPU HBM, persistent
memory, ...). We no longer just have a flat memory topology inside a
numa node. Instead there is a hierarchy of memory for instance HBM fo
From: Jérôme Glisse
This patch add migrate commands to hbind() ioctl, user space can use
this commands to migrate a range of virtual address to list of target
memory.
This does not change the policy for the range, it also ignores any of
the existing policy range, it does not changes the policy f
From: Jérôme Glisse
Register CPUs as initiator under HMS scheme. CPUs are registered per
node (one initiator device per node per CPU). We also add the CPU to
the node default link so it is connected to main memory for the node.
For details see Documentation/vm/hms.rst.
Signed-off-by: Jérôme Glis
From: Jérôme Glisse
This register NVidia GPU under heterogeneous memory system so that one
can use the GPU memory with new syscall like hbind() for compute work
load.
Signed-off-by: Jérôme Glisse
---
drivers/gpu/drm/nouveau/Kbuild| 1 +
drivers/gpu/drm/nouveau/nouveau_hms.c | 80 +
From: Jérôme Glisse
A link connect initiators (CPUs or devices) and targets memory with
each others. It does necessarily match one to one with a physical
inter-connect ie a given physical inter-connect by be presented as
multiple links or multiple physical inter-connect can be presented
as just o
From: Jérôme Glisse
Set of tests for heterogeneous memory system (migration, binding, ...)
Signed-off-by: Jérôme Glisse
---
tools/testing/hms/Makefile| 17 ++
tools/testing/hms/hbind-create-device-file.sh | 11 +
tools/testing/hms/test-hms-migrate.c | 77 ++
On Saturday, December 1, 2018 3:18:24 PM CET Giovanni Gherdovich wrote:
> On Fri, 2018-11-23 at 11:35 +0100, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki
> >
[cut]
> >
> > [snip]
>
> [NOTE: the tables in this message are quite wide. If this doesn't get to you
> properly formatted you
On Sun, Nov 11, 2018 at 08:31:14PM +0100, Alexandre Belloni wrote:
> Move trivial RTCs to the rtc generic binding documentation as they all also
> support at least 'start-year'.
>
> Signed-off-by: Alexandre Belloni
> ---
> Documentation/devicetree/bindings/rtc/rtc.txt | 34 +++
>
On Friday, November 30, 2018 9:51:19 AM CET Rafael J. Wysocki wrote:
> Hi Doug,
>
> On Fri, Nov 30, 2018 at 8:49 AM Doug Smythies wrote:
> >
> > Hi Rafael,
> >
> > On 2018.11.23 02:36 Rafael J. Wysocki wrote:
> >
> > ... [snip]...
> >
> > > +/**
> > > + * teo_find_shallower_state - Find shallower
Quoting Lina Iyer (2018-11-30 10:33:17)
> On Thu, Nov 29 2018 at 14:45 -0700, Lina Iyer wrote:
> >On Wed, Nov 28 2018 at 17:25 -0700, Bjorn Andersson wrote:
> >>On Wed 28 Nov 09:39 PST 2018, Lina Iyer wrote:
> >>
> >>>On Tue, Nov 27 2018 at 14:45 -0700, Stephen Boyd wrote:
> Quoting Lina Iyer
On Sun, 11 Nov 2018 22:45:38 +0100, Heiko Stuebner wrote:
> From: Heiko Stuebner
>
> Similar to gpio-reset allow to specify active and inactive delays
> while keeping the 100ms defaults that were used previously all the time.
>
> The dt-properties are named the same as in gpio-reset but get an "
This fixes a 13.9% of remote memory access regression and 40% remote
memory allocation regression on Haswell when the local node is fragmented
for hugepage sized pages and memory is being faulted with either the thp
defrag setting of "always" or has been madvised with MADV_HUGEPAGE.
The usecase th
If memory compaction initially fails to free a hugepage, reclaiming and
retrying compaction is more likely to be harmful rather than beneficial.
For reclaim, it is unlikely that the pages reclaimed will form contiguous
memory the size of a hugepage without unnecessarily reclaiming a lot of
memory
This is a full revert of ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for
MADV_HUGEPAGE mappings") and a partial revert of 89c83fb539f9 ("mm, thp:
consolidate THP gfp handling into alloc_hugepage_direct_gfpmask").
By not setting __GFP_THISNODE, applications can allocate remote hugepages
when the l
On Tue, Dec 04, 2018 at 08:28:03AM +0900, Akira Yokosawa wrote:
> On 2018/12/03 15:04:11 -0800, Paul E. McKenney wrote:
> > Hello, Ingo!
> >
> > This series contains updates to the Linux kernel's formal memory model
> > in tools/memory-model. These patches are ready for inclusion into -tip.
> >
On Mon, Nov 12, 2018 at 12:05:55AM -0800, Bjorn Andersson wrote:
> Add binding for the QMP based side-channel communication mechanism to
> the AOSS, which is used to control resources not exposed through the
> RPMh interface.
>
> Signed-off-by: Bjorn Andersson
> ---
> .../bindings/soc/qcom/qcom,
On Thursday, November 29, 2018 12:20:07 AM CET Doug Smythies wrote:
> On 2018.11.23 02:36 Rafael J. Wysocki wrote:
>
> v5 -> v6:
> * Avoid applying poll_time_limit to non-polling idle states by mistake.
> * Use idle duration measured by the governor for everything (as it likely is
>more accu
Quoting Bjorn Andersson (2018-11-29 22:56:55)
> The scm binding and driver was updated to rely on the fallback to the
> default qcom,scm for any modern SoC and as such both are required. Add
> the default compatible to make the scm instance probe.
>
> Fixes: d850156a226a ("arm64: dts: qcom: msm899
Quoting Rob Herring (2018-12-03 15:09:07)
> On Sun, Dec 02, 2018 at 09:25:02AM +0530, Taniya Das wrote:
> > Add QCOM cpufreq firmware device bindings for Qualcomm Technology Inc's
> > SoCs. This is required for managing the cpu frequency transitions which are
> > controlled by the hardware engine.
Hi Tomer,
I love your patch! Yet something to improve:
[auto build test ERROR on mtd/spi-nor/next]
[also build test ERROR on v4.20-rc5 next-20181203]
[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
On Mon, Dec 3, 2018 at 12:01 AM Serge E. Hallyn wrote:
> On Sun, Dec 02, 2018 at 08:28:25PM -0700, Tycho Andersen wrote:
> > The const qualifier causes problems for any code that wants to write to the
> > third argument of the seccomp syscall, as we will do in a future patch in
> > this series.
>
On 03/12/2018 17:45:58-0600, Rob Herring wrote:
> On Sun, Nov 11, 2018 at 08:31:14PM +0100, Alexandre Belloni wrote:
> > Move trivial RTCs to the rtc generic binding documentation as they all also
> > support at least 'start-year'.
> >
> > Signed-off-by: Alexandre Belloni
> > ---
> > Documentati
On Mon, Dec 03, 2018 at 08:52:11AM -0700, Tycho Andersen wrote:
> On Sun, Dec 02, 2018 at 11:26:50PM -0600, Serge E. Hallyn wrote:
> > On Sun, Dec 02, 2018 at 08:28:26PM -0700, Tycho Andersen wrote:
> > > +struct seccomp_knotif {
> > > + /* The struct pid of the task whose filter triggered the noti
On Wed, Nov 28, 2018 at 02:05:21PM -0600, Bjorn Helgaas wrote:
> On Wed, Nov 28, 2018 at 6:13 AM Rafael J. Wysocki wrote:
> > On Tuesday, November 27, 2018 9:25:14 PM CET Bjorn Helgaas wrote:
> > > On Mon, Nov 26, 2018 at 11:37:20PM +0100, Rafael J. Wysocki wrote:
> > > > On Monday, November 26, 2
From: John Hubbard
Hi,
Summary: I'd like these two patches to go into the next convenient cycle.
I *think* that means 4.21.
Details
At the Linux Plumbers Conference, we talked about this approach [1], and
the primary lingering concern was over performance. Tom Talpey helped me
through a much m
From: John Hubbard
Introduces put_user_page(), which simply calls put_page().
This provides a way to update all get_user_pages*() callers,
so that they call put_user_page(), instead of put_page().
Also introduces put_user_pages(), and a few dirty/locked variations,
as a replacement for release_p
From: John Hubbard
For infiniband code that retains pages via get_user_pages*(),
release those pages via the new put_user_page(), or
put_user_pages*(), instead of put_page()
This is a tiny part of the second step of fixing the problem described
in [1]. The steps are:
1) Provide put_user_page*()
From: Andi Kleen
When looking at PT or brstackinsn traces with perf script
it can be very useful to see the source code. This adds a simple
facility to print them with perf script, if the information
is available through dwarf
% perf record ...
% perf script -F insn,ip,sym,srccode
...
On Mon, Dec 3, 2018 at 3:49 PM Rob Herring wrote:
>
> On Sun, 11 Nov 2018 22:45:38 +0100, Heiko Stuebner wrote:
> > From: Heiko Stuebner
> >
> > Similar to gpio-reset allow to specify active and inactive delays
> > while keeping the 100ms defaults that were used previously all the time.
> >
> > T
This improves test coverage.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
tools/lib/lockdep/run_tests.sh | 14 ++
1 file changed, 14 insertions(+)
diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index bc36178
Hi Ingo and Peter,
A known shortcoming of the current lockdep implementation is that it requires
lock keys to be allocated statically. This forces certain unrelated
synchronization objects to share keys and this key sharing can cause false
positive deadlock reports. This patch series adds support
Make sure that all lock order entries that refer to a class are removed
from the list_entries[] array when a kernel module is unloaded.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
include/linux/lockdep.h | 1 +
kernel/locking/lockdep.c | 17 ++
This patch avoids that sparse complains about a missing declaration for
the lock_classes array.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/locking/lockdep.c b/ke
Since zap_class() removes items from the all_lock_classes list and the
classhash_table, protect all zap_class() calls with the graph lock.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 2 +-
1 file changed, 1 insertion(+), 1
Use find instead of ls to avoid splitting filenames that contain spaces.
Use rm -f instead of if ... then rm ...; fi. This patch addresses all
shellcheck complaints about the run_tests.sh shell script.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
too
This patch avoids that the following compiler warning is reported while
compiling the lockdep unit tests:
include/liblockdep/rwlock.h: In function 'liblockdep_pthread_rwlock_trywlock':
include/liblockdep/rwlock.h:66:9: warning: implicit declaration of function
'pthread_rwlock_trywlock'; did you m
Commit 87915adc3f0a ("workqueue: re-add lockdep dependencies for flushing")
improved deadlock checking in the workqueue implementation. Unfortunately
that patch also introduced a few false positive lockdep complaints. This
patch suppresses these false positives by allocating the workqueue mutex
loc
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index c936fce5b9d7..b4772e5fc176 100644
--- a/kernel/locking/lockdep
Make sure that the lockdep_register_key() and lockdep_unregister_key()
code is tested when running the lockdep tests.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
tools/lib/lockdep/include/liblockdep/common.h | 2 ++
tools/lib/lockdep/include/libloc
This patch does not change any functionality but makes the next patch
in this series easier to read.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 27 +--
1 file changed, 17 insertions(+), 10 deletion
A shortcoming of the current lockdep implementation is that it requires
lock keys to be allocated statically. That forces certain lock objects
to share lock keys. Since lock dependency analysis groups lock objects
per key sharing lock keys can cause false positive lockdep reports.
Make it possible
Debugging lockdep data structure inconsistencies is challenging. Add
disabled code that verifies data structure consistency at runtime.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 147 ++
Instead of abandoning elements of list_entries[] that are no longer in
use, make alloc_list_entry() reuse array elements that have been freed.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 27 ---
1 f
Instead of leaving lock classes that are no longer in use in the
lock_classes array, reuse entries from that array that are no longer
in use. Maintain a linked list of free lock classes with list head
'free_lock_class'. Initialize that list from inside register_lock_class()
instead of from inside l
The next patch in this series uses the class name in code that
detects lock class use-after-free. Hence retain the class name for
lock classes that are being freed.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 4 +---
1 fil
This patch does not change any functionality but makes the patch that
frees lock classes that are no longer in use easier to read.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
include/linux/lockdep.h | 14 +++---
1 file changed, 7 insertions(
Due to the previous patch all code that accesses the 'all_lock_classes'
list holds the graph lock. Hence use regular list primitives instead of
their RCU variants to access this list.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockde
This patch does not change any functionality but makes the
lockdep_reset_lock() function easier to read.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 50
1 file changed, 30 insertion
Since the function __lockdep_init_map() only has one caller, inline it
into its caller. This patch does not change any functionality.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
kernel/locking/lockdep.c | 8 +---
1 file changed, 1 insertion(+),
This patch makes sure that the lockdep_reset_lock() function gets
tested.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
tools/lib/lockdep/include/liblockdep/common.h | 1 +
tools/lib/lockdep/include/liblockdep/mutex.h | 1 +
tools/lib/lockdep/tests/A
If compilation of liblockdep fails, display an error message and exit
immediately. Display compiler warning and error messages that are
generated while building a test. Only run a test if compilation
succeeded.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
This patch avoids that linking against liblockdep fails due to no
print_irqtrace_events() definition being available.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
tools/lib/lockdep/lockdep.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/to
Initializing a list entry just before it is passed to list_add_tail_rcu()
is not necessary because list_add_tail_rcu() overwrites the next and prev
pointers anyway. Hence remove the INIT_LIST_HEAD() statement.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
Instead of checking whether the tests produced any output, check the
output itself. This patch avoids that e.g. debug output causes the
message "PASSED!" to be reported for failed tests.
Cc: Peter Zijlstra
Cc: Waiman Long
Cc: Johannes Berg
Signed-off-by: Bart Van Assche
---
tools/lib/lockdep/
On Mon, Dec 03, 2018 at 10:34:07AM -0700, Mathieu Poirier wrote:
> On Thu, 29 Nov 2018 at 18:22, Leo Yan wrote:
> >
> > This patch is to add the AMBA device ID for CA73 CPU, so that CPU debug
> > module can be initialized successfully when a SoC contain CA73 CPUs.
> >
> > This patch has been verif
Hi Boris,
On 03/12/18 10:07, Boris Brezillon wrote:
Hi Vitor,
On Mon, 26 Nov 2018 09:45:14 +0100
Boris Brezillon wrote:
Follow the naming scheme introduced by the Cadence driver to keep things
consistent.
Signed-off-by: Boris Brezillon
---
drivers/i3c/master/Makefile
Given corruption in the ftrace records, it might be possible to allocate
tmp_prz without assigning prz to it, but still marking it as needing to
be freed, which would cause at least a NULL dereference.
smatch warnings:
fs/pstore/ram.c:340 ramoops_pstore_read() error: we previously assumed 'prz'
c
sers")
mlx5_get_send_wqe() is still used in drivers/infiniband/hw/mlx5/cq.c
and declared in drivers/infiniband/hw/mlx5/mlx5_ib.h ...
I have used the version of the rdma tree from next-20181203 for today.
--
Cheers,
Stephen Rothwell
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