Hi Uwe,
Uwe Kleine-König wrote on Mon, 29 Jun
2020 21:50:44 +0200:
> On Mon, Jun 29, 2020 at 04:08:44PM +0200, Miquel Raynal wrote:
> > Hello Uwe, Thierry,
> >
> > Miquel Raynal wrote on Sun, 3 May 2020
> > 12:54:53 +0200:
> >
> > > The MAX7313 chip is fully compatible with the PCA9535 on
Hi Sameer
Thank you for explaining detail at off-list mail.
Your issue happen on (C) case, and you are tring to solve it.
It is easy to understand if it was indicated at log area.
I have imagined other system from "multiple CPU/Codec support".
(A)(B)
FE <-> BE
(C)
Hi Archie,
>>> There is a possibility that an ACL packet is received before we
>>> receive the HCI connect event for the corresponding handle. If this
>>> happens, we discard the ACL packet.
>>>
>>> Rather than just ignoring them, this patch provides a queue for
>>> incoming ACL packet without a
The flow is allocated in qrtr_tx_wait, but not freed when qrtr node
is released. (*slot) becomes NULL after radix_tree_iter_delete is
called in __qrtr_node_release. The fix is to save (*slot) to a
vairable and then free it.
This memory leak is catched when kmemleak is enabled in kernel,
the report
On Mon, Jun 29, 2020 at 12:29:25PM +0200, Oscar Salvador wrote:
> On Wed, 2020-06-24 at 15:01 +, nao.horigu...@gmail.com wrote:
> > I rebased soft-offline rework patchset [1][2] onto the latest
> > mmotm. The
> > rebasing required some non-trivial changes to adjust, but mainly that
> > was
> >
Hi Miao-chen,
> This fixes the kernel oops by removing unnecessary background scan
> update from hci_adv_monitors_clear() which shouldn't invoke any work
> queue.
>
> The following test was performed.
> - Run "rmmod btusb" and verify that no kernel oops is triggered.
>
> Signed-off-by: Miao-chen
Hi Luiz,
> It is possible to receive an L2CAP conn req for an encrypted
> connection, before actually receiving the HCI change encryption
> event. If this happened, the received L2CAP packet will be ignored.
>>>
>>> How is this possible? Or you are referring to a race between the ACL
Instead of just changing the helper window to show a
dependency, also navigate to it at the config and menu
widgets.
Signed-off-by: Mauro Carvalho Chehab
---
I ended re-sending the same version as on patch series 2. Please
consider this patch instead.
diff --git a/scripts/kconfig/qconf.cc b/s
Hi Marcel,
On Mon, 29 Jun 2020 at 14:40, Marcel Holtmann wrote:
>
> Hi Archie,
>
> > There is a possibility that an ACL packet is received before we
> > receive the HCI connect event for the corresponding handle. If this
> > happens, we discard the ACL packet.
> >
> > Rather than just ignoring th
There are 3 types that are not parsed by the debug info logic.
Add support for them.
Signed-off-by: Mauro Carvalho Chehab
---
scripts/kconfig/qconf.cc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index fd721c6c4c94..4a616128a154 10064
On Tue, Jun 30, 2020 at 12:07 PM Andy Tang wrote:
>
>
>
> > -Original Message-
> > From: Amit Kucheria
> > Sent: 2020年6月30日 13:37
> > To: Andy Tang
> > Cc: Shawn Guo ; Leo Li ; Rob
> > Herring ; lakml ;
> > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > ; LKML
> > Subjec
>
> Support MAX98390 speaker amplifier on cometlake platform. Driver now
> detects amplifier type in the probe function and installs corresponding
> controls and DAPM widgets/routes in the late_probe function.
>
> Signed-off-by: Brent Lu
This patch is from Chrome-v4.19 branch to support the com
On Tue 30-06-20 15:30:04, Joonsoo Kim wrote:
> 2020년 6월 29일 (월) 오후 4:55, Michal Hocko 님이 작성:
[...]
> > diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> > index 57ece74e3aae..c1595b1d36f3 100644
> > --- a/mm/hugetlb.c
> > +++ b/mm/hugetlb.c
> > @@ -1092,10 +1092,14 @@ static struct page
> > *dequeue_huge
Hi Alain,
> > So, as mentioned in the other review, I'd like to evaluate other
> > possibilities for the above:
> >
> > - One option is to enable it globally in probe(). Then you lose the
> > possibility to have a device at address 0x08.
>
> I'd prefer avoid this solution to not lose the addre
Hi,
On Sun, 21 Jun 2020 00:39:04 +0200
Jonathan Neuschäfer wrote:
> Hi,
>
> This patchset adds basic support for the embedded controller found on
> older ebook reader boards designed by/with the ODM Netronix Inc.[1] and
> sold by Kobo or Tolino, for example the Kobo Aura and the Tolino Shine.
>
Hi,
>
> Hi Bean,
> > On Mon, 2020-06-29 at 15:15 +0900, Daejun Park wrote:
> > > > Seems you intentionally ignored to give you comments on my
> > > > suggestion.
> > > > let me provide the reason.
> > >
> > > Sorry! I replied to your comment (
> > > https://protect2.fireeye.com/url?k=be575021-e3
Support MAX98390 speaker amplifier on cometlake platform. Driver now
detects amplifier type in the probe function and installs corresponding
controls and DAPM widgets/routes in the late_probe function.
Signed-off-by: Brent Lu
---
sound/soc/intel/boards/Kconfig| 20
soun
> -Original Message-
> From: Amit Kucheria
> Sent: 2020年6月30日 13:37
> To: Andy Tang
> Cc: Shawn Guo ; Leo Li ; Rob
> Herring ; lakml ;
> open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> ; LKML
> Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> zone
get_dev_cap and set_resources_state functions may return a positive
value because of hardware failure, and the positive return value
can not be passed to ERR_PTR directly.
Fixes: 7dd29ee12865 ("net-next/hinic: add sriov feature support")
Signed-off-by: Luo bin
---
drivers/net/ethernet/huawei/hin
On Mon, Jun 29, 2020 at 9:23 PM Anup Patel wrote:
>
> On Mon, Jun 29, 2020 at 6:23 PM Zong Li wrote:
> >
> > On Mon, Jun 29, 2020 at 4:28 PM Anup Patel wrote:
> > >
> > > On Mon, Jun 29, 2020 at 11:22 AM Zong Li wrote:
> > > >
> > > > On Mon, Jun 29, 2020 at 12:53 PM Anup Patel wrote:
> > > >
From: Sven Van Asbroeck Sent: Monday, June 29, 2020 10:37
PM
> On Mon, Jun 29, 2020 at 10:26 AM Fabio Estevam
> wrote:
> >
> > Just tested 5.4.24_2.1.0 on an imx6qp sabresd and DHCP also fails there.
>
> I think I discovered the problem !
>
> When I compare the sabresd devicetree on mainline w
From: Xu Wang
usb_free_coherent() is safe with NULL addr and this check is
not required.
Signed-off-by: Xu Wang
---
drivers/input/misc/cm109.c | 8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
index c09b9628ad34.
On Tue, 2020-06-30 at 01:08 -0400, Qian Cai wrote:
> On Wed, Jun 24, 2020 at 03:01:22PM +, nao.horigu...@gmail.com
> wrote:
> > I rebased soft-offline rework patchset [1][2] onto the latest
> > mmotm. The
> > rebasing required some non-trivial changes to adjust, but mainly
> > that was
> > str
On Mon 29-06-20 22:28:30, Matthew Wilcox wrote:
[...]
> The documentation is hard to add a new case to, so I rewrote it. What
> do you think? (Obviously I'll split this out differently for submission;
> this is just what I have in my tree right now).
I am fine with your changes. Few notes below.
Am 29.06.20 um 23:10 schrieb Wolfram Sang:
Hi Alexander,
thanks for trying to fix this, yet I have some doubts.
On Mon, Jun 29, 2020 at 10:31:21PM +0200, Alexander A. Klimov wrote:
Rationale:
https://lore.kernel.org/linux-doc/20200626110706.7b5d4...@lwn.net/
I think we need some text here
Hi Michal, Alexei,
On Mon, Jun 8, 2020 at 8:56 PM Michal Kubecek wrote:
>
> On Thu, Apr 23, 2020 at 04:39:17PM +0900, Masahiro Yamada wrote:
> > The user mode helper should be compiled for the same architecture as
> > the kernel.
> >
> > This Makefile reuses the 'hostprogs' syntax by overriding H
Introduce helper bpf_get_task_stack(), which dumps stack trace of given
task. This is different to bpf_get_stack(), which gets stack track of
current task. One potential use case of bpf_get_task_stack() is to call
it from bpf_iter__task and dump all /proc//stack to a seq_file.
bpf_get_task_stack()
Sanitize and expose get/put_callchain_entry(). This would be used by bpf
stack map.
Suggested-by: Peter Zijlstra
Acked-by: Andrii Nakryiko
Signed-off-by: Song Liu
---
include/linux/perf_event.h | 2 ++
kernel/events/callchain.c | 13 ++---
2 files changed, 8 insertions(+), 7 deletion
On Mon, 29 Jun 2020 18:15:42 +0200 Greg KH wrote:
> On Mon, Jun 29, 2020 at 04:28:05PM +0200, SeongJae Park wrote:
> > Hello,
> >
> >
> > With my little script, I found below commits in the mainline tree are more
> > than
> > 1 week old and fixing commits that back-ported in v5.4..v5.4.49, but
2020년 6월 29일 (월) 오후 4:55, Michal Hocko 님이 작성:
>
> On Mon 29-06-20 15:27:25, Joonsoo Kim wrote:
> [...]
> > Solution that Introduces a new
> > argument doesn't cause this problem while avoiding CMA regions.
>
> My primary argument is that there is no real reason to treat hugetlb
> dequeing somehow d
This set introduces a new helper bpf_get_task_stack(). The primary use case
is to dump all /proc/*/stack to seq_file via bpf_iter__task.
A few different approaches have been explored and compared:
1. A simple wrapper around stack_trace_save_tsk(), as v1 [1].
This approach introduces new s
From: Yunfei Dong
Add support for H.264 decoding using the stateless API, as supported by
MT8183. This support takes advantage of the V4L2 H.264 reference list
builders.
Signed-off-by: Yunfei Dong
[acourbot: refactor, cleanup and split]
Co-developed-by: Alexandre Courbot
Signed-off-by: Alexand
From: Yunfei Dong
Support the stateless codec API that will be used by MT8183.
Signed-off-by: Yunfei Dong
[acourbot: refactor, cleanup and split]
Co-developed-by: Alexandre Courbot
Signed-off-by: Alexandre Courbot
---
drivers/media/platform/mtk-vcodec/Makefile| 1 +
.../platform/mtk-vc
MT8183's decoder is instantiated similarly to MT8173's.
Signed-off-by: Alexandre Courbot
---
Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
b/Documentation/devicetree/bin
From: Yunfei Dong
Now that all the supporting blocks are present, enable decoder for
MT8183.
Signed-off-by: Yunfei Dong
[acourbot: refactor, cleanup and split]
Co-developed-by: Alexandre Courbot
Signed-off-by: Alexandre Courbot
---
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 5 +
Add Mediatek's non-compressed 8 bit block video mode. This format is
produced by the MT8183 codec and can be converted to a non-proprietary
format by the MDP3 component.
Signed-off-by: Alexandre Courbot
---
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 1 +
2
Add support for decoder firmware version 2, which makes the kernel
responsible for managing the VSI context and is used for stateless
codecs.
Signed-off-by: Alexandre Courbot
---
.../media/platform/mtk-vcodec/vdec_ipi_msg.h | 18 +---
.../media/platform/mtk-vcodec/vdec_vpu_if.c | 28 +
From: Yunfei Dong
The stateless API requires a media device for issuing requests. Add one
if we are being instantiated as a stateless decoder.
Signed-off-by: Yunfei Dong
[acourbot: refactor, cleanup and split]
Co-developed-by: Alexandre Courbot
Signed-off-by: Alexandre Courbot
---
drivers/me
On Tue, Jun 30, 2020 at 12:23:53AM +0200, Alexandre Belloni wrote:
> Hi,
>
> On 15/06/2020 18:14:55+0200, Krzysztof Kozlowski wrote:
> > The rtc-max77686 device shares the main interrupt line with parent MFD
> > device (max77686 driver). During the system suspend, the parent MFD
> > device disabl
Firmwares for decoders newer than MT8173 will include an ABI version
number in their initialization ack message. Add the capacity to manage
it and make initialization fail if the firmware ABI is of a version that
we don't support.
For MT8173, this ABI version field does not exist ; thus ignore it
the goback button does nothing on splitMode. So, why display
it?
Signed-off-by: Mauro Carvalho Chehab
---
scripts/kconfig/qconf.cc | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index e43fe4dcd4e7..6a327b69ff5f 100644
Hi Krzysztof,
On 29.06.2020 22:59, Krzysztof Kozlowski wrote:
> Remove the regulators node entirely because its children do not have any
> unit addresses. This fixes DTC warning:
>
> Warning (simple_bus_reg): /regulators/regulator-0: missing or empty
> reg/ranges property
>
> Signed-off-by:
The goBack() logic is used only for the configList, as
it only makes sense on singleMode. So, let's simplify the
code.
Signed-off-by: Mauro Carvalho Chehab
---
scripts/kconfig/qconf.cc | 50 +++-
1 file changed, 18 insertions(+), 32 deletions(-)
diff --git a/
The Qt5 conversion broke support for debug info links.
Restore the behaviour added by changeset
ab45d190fd4a ("kconfig: create links in info window").
The original approach was to pass a pointer for a data struct
via an . That doesn't sound a good idea, as, if something
gets wrong, the app could
Instead of just changing the helper window to show a
dependency, also navigate to it at the config and menu
widgets.
Signed-off-by: Mauro Carvalho Chehab
---
scripts/kconfig/qconf.cc | 24 +---
1 file changed, 5 insertions(+), 19 deletions(-)
diff --git a/scripts/kconfig/qco
The default implementation for setSelected() at QTreeWidgetItem
allows multiple items to be selected.
Well, this should never be possible for the configItem lists.
So, implement a function that will automatically clean any
previous selection. This simplifies the logic somewhat, while
making the s
From: Yunfei Dong
We are planning to add support for stateless decoders to this driver.
Part of the driver will be shared between stateful and stateless
codecs, but a few ops need to be specialized for both. Extract the
stateful part of the driver and move it into its own file, accessible
through
This patch series adds support for the H.264 stateless decoder found in MT8183.
It depends on the MT8183 encoder support series [1] and should thus be applied
on top of it.
Contrary to MT8173 which is stateful, MT8183 is a stateless decoder. So the
first patches take care of splitting the stateful
When the search dialog box finds symbols/menus that match
the search criteria, it presents all results at the window.
Clicking on a search result should make qconf to navigate
to the selected item. This works on singleMode and on
fullMode, but on splitMode, the navigation is broken.
This was part
This series fixes some issues with search while on split view and fix the
broken hyperlink navigation.
The first patches restore the pre-Qt5 conversion behavior. The last
one implements navigation on a different way. I opted to keep this one
in separate, as this one is a new feature.
-
v3:
- dr
The usage of c-like include is deprecated on modern Qt
versions. Use the c++ style includes.
While here, remove uneeded and redundant ones, sorting
them on alphabetic order.
Signed-off-by: Mauro Carvalho Chehab
---
scripts/kconfig/qconf.cc | 27 +--
scripts/kconfig/qconf
Em Tue, 30 Jun 2020 12:36:27 +0900
Masahiro Yamada escreveu:
> On Mon, Jun 29, 2020 at 6:35 PM Mauro Carvalho Chehab
> wrote:
> >
> > Instead of just changing the helper window to show a
> > dependency, also navigate to it at the config and menu
> > widgets.
> >
> > Signed-off-by: Mauro Carvalho
Emails currently go to different mailboxes. Switch to the kernel.org
address so I can forward them to a single mailbox.
Signed-off-by: Amit Kucheria
---
Documentation/devicetree/bindings/thermal/qcom-tsens.yaml | 2 +-
MAINTAINERS | 4 ++--
2 files c
> From: Lu Baolu
> Sent: Sunday, June 28, 2020 8:34 AM
>
> After a page request is handled, software must response the device which
> raised the page request with the handling result. This is done through
> the iommu ops.page_response if the request was reported to outside of
> vendor iommu drive
On 2020/06/30 10:13, Eric W. Biederman wrote:
> Alexei Starovoitov writes:
>
>> On Mon, Jun 29, 2020 at 02:55:05PM -0500, Eric W. Biederman wrote:
>>>
>>> I have tested thes changes by booting with the code compiled in and
>>> by killing "bpfilter_umh" and running iptables -vnL to restart
>>> the
On 06/30, Nicholas Piggin wrote:
> Excerpts from Oleg Nesterov's message of June 30, 2020 12:02 am:
> > On 06/29, Nicholas Piggin wrote:
> >>
> >> prepare_to_wait_event() has a pretty good pattern (and comment), I would
> >> favour using that (test the signal when inserting on the waitqueue).
> >>
> On Jun 29, 2020, at 9:18 PM, Alexei Starovoitov
> wrote:
>
> On Sun, Jun 28, 2020 at 10:58 PM Song Liu wrote:
>>
>> Introduce helper bpf_get_task_stack(), which dumps stack trace of given
>> task. This is different to bpf_get_stack(), which gets stack track of
>> current task. One potenti
On Sat, Jun 27, 2020 at 01:01:13PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1654e38510
> kernel
On Fri, Jun 26, 2020 at 01:08:19PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:4a21185c Merge git://git.kernel.org/pub/scm/linux/kernel/g..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16958f4d10
> kernel
On Tue, Jun 23, 2020 at 05:17:15AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=135e723510
> kernel
On 30/06/20 9:00 am, piliu wrote:
>
>
> On 06/29/2020 01:55 PM, Hari Bathini wrote:
>>
>>
>> On 28/06/20 7:44 am, piliu wrote:
>>> Hi Hari,
>>
>> Hi Pingfan,
>>
>>>
>>> After a quick through for this series, I have a few question/comment on
>>> this patch for the time being. Pls see comment in
On Mon, 29 Jun 2020 at 17:15, Daniel Thompson
wrote:
>
> On Fri, Jun 26, 2020 at 12:44:15PM -0700, Doug Anderson wrote:
> > Hi,
> >
> > On Tue, Jun 23, 2020 at 3:59 AM Daniel Thompson
> > wrote:
> > >
> > > On Tue, Jun 23, 2020 at 02:07:47PM +0530, Sumit Garg wrote:
> > > > On Mon, 22 Jun 2020 at
Em Tue, 30 Jun 2020 12:55:05 +0900
Masahiro Yamada escreveu:
> On Tue, Jun 30, 2020 at 12:30 AM Mauro Carvalho Chehab
> wrote:
> >
> > the goback button does nothing on splitMode. So, why display
> > it?
>
>
> Hmm, I still see the goback button
> on all of the three modes...
Huh?
Perhaps
Hi Sameer
> PCM devices are created for dai links with 'no-pcm' flag as '0'.
> Such DAI links have CPU component which implement pcm_construct()
> and pcm_destruct() callbacks. Based on this, current patch exposes
> a helper function to identify such components and populate 'no_pcm'
> flag for D
Hi all,
After merging the thunderbolt tree, today's linux-next build (powerpc
allyesconfig) failed like this:
Caused by commit
54509f5005ca ("thunderbolt: Add KUnit tests for path walking")
interacting with commit
d4cdd146d0db ("kunit: generalize kunit_resource API beyond allocated
resou
Hi!
Are the 147MB or 1.6 million(!) lines in
drivers/gpu/drm/amd/include/asic_reg really necessary? I grepped a few
of them and they don't seem to be used, neither in the kernel nor drm or
mesa. As an example I removed one of the unused lines (see the attached
patch) and the amdgpu driver seems to
> Add binding for NVIDIA's Tegra194 SoC SMMU topology that is based on ARM
> MMU-500.
>
> Signed-off-by: Krishna Reddy
Reviewed-by: Pritesh Raithatha
On Mon, Jun 29, 2020 at 07:10:22PM +0200, Borislav Petkov wrote:
> On Thu, Jun 18, 2020 at 01:08:37AM +0300, Jarkko Sakkinen wrote:
> ...
> > intended benefit of massaging GCC's inlining algorithm is unlikely to
> > realized in the vDSO any time soon, if ever.
>
> That is a very good explanation a
> From: Lu Baolu
> Sent: Sunday, June 28, 2020 8:34 AM
>
> A pasid might be bound to a page table from a VM guest via the iommu
> ops.sva_bind_gpasid. In this case, when a DMA page fault is detected
> on the physical IOMMU, we need to inject the page fault request into
> the guest. After the gues
Peter Zijlstra wrote:
...
> -#define lockdep_assert_irqs_disabled() do {\
> - WARN_ONCE(debug_locks && !current->lockdep_recursion && \
> - current->hardirqs_enabled,\
> - "IRQs not disabled as e
> Add global/context fault hooks to allow NVIDIA SMMU implementation handle
> faults across multiple SMMUs.
>
> Signed-off-by: Krishna Reddy
Reviewed-by: Pritesh Raithatha
On Mon, 29 Jun 2020 at 21:07, Daniel Thompson
wrote:
>
> On Mon, Jun 29, 2020 at 04:50:20PM +0200, Petr Mladek wrote:
> > On Mon 2020-06-29 16:59:24, Cengiz Can wrote:
> > > `kdb_msg_write` operates on a global `struct kgdb_io *` called
> > > `dbg_io_ops`.
> > >
> > > Although it is initialized in
> NVIDIA's Tegra194 SoC uses two ARM MMU-500s together to interleave IOVA
> accesses across them.
> Add NVIDIA implementation for dual ARM MMU-500s and add new compatible
> string for Tegra194 SoC SMMU topology.
>
> Signed-off-by: Krishna Reddy
Reviewed-by: Pritesh Raithatha
[+ Oliver]
Hi Joakim,
Am 2020-06-30 04:42, schrieb Joakim Zhang:
-Original Message-
From: Michael Walle
Sent: 2020年6月30日 2:18
To: linux-...@vger.kernel.org; net...@vger.kernel.org;
linux-kernel@vger.kernel.org
Cc: Wolfgang Grandegger ; Marc Kleine-Budde
; David S . Miller ; Jakub
Kicin
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_raw_spinlock_t data type, which allows to
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. If the serialization primitive is
not disabling preemption implicitly, preemption has to be explicitly
disabled before entering the sequence counter write side critical
section.
A plain s
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_raw_spinlock_t data type, which allows to
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_rwlock_t data type, which allows to associ
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
Commit 3c3b177a9369 ("reservation: add support for read-only access
using rcu") introduced a sequence counter to manage updates to
reservations. Back then, the reservation object initializer
reservation_object_init() was always inlined.
Having the sequence counter initialization inlined meant that
Preemption must be disabled before entering a sequence count write side
critical section. Failing to do so, the seqcount read side can preempt
the write side section and spin for the entire scheduler tick. If that
reader belongs to a real-time scheduling class, it can spin forever and
the kernel
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.
Use the new seqcount_spinlock_t data type, which allows to asso
Proper documentation for the design and usage of sequence counters and
sequential locks does not exist. Complete the seqlock.h documentation as
follows:
- Divide all documentation on a seqcount_t vs. seqlock_t basis. The
description for both mechanisms was intermingled, which is incorrect
Asserting that preemption is enabled or disabled is a critical sanity
check. Developers are usually reluctant to add such a check in a
fastpath as reading the preemption count can be costly.
Extend the lockdep API with macros asserting that preemption is disabled
or enabled. If lockdep is disable
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. If the serialization primitive is
not disabling preemption implicitly, preemption has to be explicitly
disabled before entering the sequence counter write side critical
section.
The dma-b
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. If the serialization primitive is
not disabling preemption implicitly, preemption has to be explicitly
disabled before entering the write side critical section.
There is no built-in debug
A small number of the the exported seqlock.h functions are kernel-doc
annotated.
Since seqlock.h is now included by the kernel's RST documentation, add
kernel-doc annotations for all of the remaining functions.
Signed-off-by: Ahmed S. Darwish
---
include/linux/seqlock.h | 398 ++
Hi,
This is v3 of the seqlock patch series:
[PATCH v1 00/25] seqlock: Extend seqcount API with associated locks
https://lore.kernel.org/lkml/20200519214547.352050-1-a.darw...@linutronix.de
[PATCH v2 00/18]
https://lore.kernel.org/lkml/20200608005729.1874024-1-a.darw...@linutronix.de
Align the code samples and note sections inside kernel-doc comments with
tabs. This way they can be properly parsed and rendered by Sphinx. It
also makes the code samples easier to read from text editors.
Signed-off-by: Ahmed S. Darwish
---
include/linux/seqlock.h | 82 +-
FYI, this clashes badly with my exec rework. I'd suggest you
drop everything touching exec here for now, and I can then
add the final file based exec removal to the end of my series.
On Mon, Jun 29, 2020 at 02:08:09PM -0500, Eric Sandeen wrote:
> f2fs and xfs have both added support for cgroup writeback:
>
> 578c647 f2fs: implement cgroup writeback support
> adfb5fb xfs: implement cgroup aware writeback
>
> so add them to the supported list in the docs.
>
> Signed-off-by: Er
On 6/17/2020 1:44 AM, Arnaud POULIQUEN wrote:
On 6/16/20 9:56 PM, risha...@codeaurora.org wrote:
On 2020-04-30 01:30, Arnaud POULIQUEN wrote:
Hi Rishabh,
On 4/21/20 8:10 PM, Rishabh Bhatnagar wrote:
Add the character device interface into remoteproc framework.
This interface can be used i
On Tue, Jun 30, 2020 at 10:58 AM Andy Tang wrote:
>
>
>
> > -Original Message-
> > From: Amit Kucheria
> > Sent: 2020年6月30日 13:12
> > To: Andy Tang
> > Cc: Shawn Guo ; Leo Li ; Rob
> > Herring ; lakml ;
> > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > ; LKML
> > Subjec
On 2020/6/30 下午1:29, Eli Cohen wrote:
Fix documentation to match actual function prototypes
"end" used instead of "last". Fix that.
Signed-off-by: Eli Cohen
---
Acked-by: Jason Wang
Thanks
drivers/vhost/iotlb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
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