On 28-04-20, 16:13, Sanjay R Mehta wrote:
> From: Sanjay R Mehta
>
> This driver add support for AMD PTDMA controller. This device
> performs high-bandwidth memory to memory and IO copy operation.
> Device commands are managed via a circular queue of 'descriptors',
> each of which specifies
Hello David, & All
This review and mail is more for pointing out the downsides of UTs. I
am not demanding any changes, these comments can be seen as 'nit's.
On Wed, 2020-04-29 at 12:15 +0800, David Gow wrote:
> On Tue, Apr 14, 2020 at 7:46 PM Vaittinen, Matti
> wrote:
> > Hello Stephen & All,
>
On Sat, 2020-05-02 at 19:25 +0100, Jonathan Cameron wrote:
> On Tue, 28 Apr 2020 12:31:28 +0300
> Alexandru Ardelean wrote:
>
> > This change cleans up the driver's probe function to use only devm_
> > function variants. This also gets rid of the remove function and moves the
> > clock &
On 4/30/20 7:35 PM, Wolfram Sang wrote:
On Thu, Apr 30, 2020 at 05:43:21PM +0200, Alain Volmat wrote:
In case of the I2C client exposes the flag I2C_CLIENT_HOST_NOTIFY,
pm_runtime_get_sync is called in order to always keep active the
adapter. However later on, pm_runtime_put_sync is never
On Mon, May 4, 2020 at 12:04 PM Atish Patra wrote:
>
> This patch removes the unused functions set_kernel_text_rw/ro.
> Currently, it is not being invoked from anywhere and no other architecture
> (except arm) uses this code. Even in ARM, these functions are not invoked
> from anywhere currently.
On Sun, May 03, 2020 at 10:04:47PM -0700, Ira Weiny wrote:
> Grepping for 'asm/highmem.h' and investigations don't reveal any issues...
> But
> you do have me worried. That said 0-day has been crunching on multiple
> versions of this series without issues such as this (save the mips issue
>
Hi Vinod,
> -Original Message-
> From: Vinod Koul [mailto:vk...@kernel.org]
> Sent: Monday, May 4, 2020 10:46 AM
> To: Rafał Hibner
> Cc: Appana Durga Kedareswara Rao ; Radhey Shyam
> Pandey ; Harini Katakam ; Dan
> Williams ; Michal Simek ; open
> list:DMA GENERIC OFFLOAD ENGINE
On 28-04-20, 18:10, Alan Mikhak wrote:
> From: Alan Mikhak
>
> Modify dw_edma_device_transfer() to also support the semantics of dma
> device transfer for additional use cases involving pcitest utility as a
> local initiator.
>
> For its original use case, dw-edma supported the semantics of dma
From: Ira Weiny
Continue the kmap clean up with 2 follow on patches
These apply after the kmap cleanup V2 series:
https://lore.kernel.org/lkml/20200504010912.982044-1-ira.we...@intel.com/
Ira Weiny (2):
kmap: Remove kmap_atomic_to_page()
parisc/kmap: Remove duplicate kmap code
From: Ira Weiny
parisc reimplements the kmap calls except to flush it's dcache. This is
arguably an abuse of kmap but regardless it is messy and confusing.
Remove the duplicate code and have parisc define
ARCH_HAS_FLUSH_ON_KUNMAP for a kunmap_flush_on_unmap() architecture
specific call to
From: Ira Weiny
kmap_atomic_to_page() has no callers and is only defined on 1 arch and
declared on another. Remove it.
Suggested-by: Al Viro
Signed-off-by: Ira Weiny
---
arch/csky/include/asm/highmem.h | 1 -
arch/csky/mm/highmem.c | 13 -
Hi,
On 4/24/2020 10:16 PM, Douglas Anderson wrote:
Our switch statement doesn't have entries for CPU_CLUSTER_PM_ENTER,
CPU_CLUSTER_PM_ENTER_FAILED, and CPU_CLUSTER_PM_EXIT and doesn't have
a default. This means that we'll try to do a flush in those cases but
we won't necessarily be the last
From: Leon Romanovsky
Changelog:
v3: Rebased on latest rdma-nex, which includes HCA set capability patch
and LAG code and this is why new patch from Maor was added.
v2: https://lore.kernel.org/linux-rdma/20200413133703.932731-1-l...@kernel.org
Dropped patch "RDMA/cm: Set flow label of
On 02-05-20, 15:00, Rafał Hibner wrote:
> Hello Vinod,
>
> On 02.05.2020 14:32, Vinod Koul wrote:
> > Would it not be better to use list_del_init() where we delete it rather
> > than do the init here?
> >
>
> It is not a problem of list element itself not being initialized.
> The problem is that
On Sat, 2 May 2020 at 12:17, Greg Kroah-Hartman
wrote:
>
> This is the start of the stable review cycle for the 4.14.178 release.
> There are 117 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
>
On Sat, 2 May 2020 at 12:18, Greg Kroah-Hartman
wrote:
>
> This is the start of the stable review cycle for the 4.19.120 release.
> There are 47 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
>
On 01-05-20, 00:22, Ansuel Smith wrote:
> Binding in Documentation is still "operating-points-v2-kryo-cpu".
> Restore the old binding to fix the compatibility problem.
>
> Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs")
> Signed-off-by: Ansuel Smith
> ---
>
Hello Christophe,
On Sat, May 02, 2020 at 01:59:49PM +0200, Christophe JAILLET wrote:
> Fix a cut'n'paste error in a warning message. This should be
> 'cpu-idle-state-residency-ns' to match the property searched in the
> previous 'of_property_read_u32_array()'
>
> Fixes: 9c7b185ab2fe
On 02-05-20, 20:15, Cristian Ciocaltea wrote:
> When the kernel is built with lockdep support and the owl-dma driver is
> used, the following message is shown:
>
> [2.496939] INFO: trying to register non-static key.
> [2.501889] the code is fine but needs lockdep annotation.
> [
On Mon, May 04, 2020 at 02:35:09AM +0100, Al Viro wrote:
> On Sun, May 03, 2020 at 06:09:01PM -0700, ira.we...@intel.com wrote:
> > From: Ira Weiny
> >
> > The kmap infrastructure has been copied almost verbatim to every
> > architecture.
> > This series consolidates obvious duplicated code by
On 30-04-20, 09:32, Saravana Kannan wrote:
> You are missing the point. This is not about aggregation. This is
> about OPP voting for bandwidth on a path when the vote can/should be
> 0.
>
> I'll give another example. Say one of the interconnect paths needs to
> be voted only when a particular
Hi Cristian,
On 02-05-20, 20:35, Cristian Ciocaltea wrote:
> On Sat, May 02, 2020 at 05:53:33PM +0530, Vinod Koul wrote:
> > Hi Cristian,
> >
> > On 29-04-20, 18:28, Cristian Ciocaltea wrote:
> > > When the kernel is built with lockdep support and the owl-dma driver is
> > > used, the following
On 5/4/20 12:29 AM, Jason Baron wrote:
>
>
> On 5/3/20 6:24 AM, Roman Penyaev wrote:
>> On 2020-05-02 00:09, Jason Baron wrote:
>>> On 5/1/20 5:02 PM, Roman Penyaev wrote:
Hi Jason,
That is indeed a nice catch.
Seems we need smp_rmb() pair between
please ignore it, i send it by accident.
On Mon, May 04, 2020 at 06:33:18AM +0200, Oleksij Rempel wrote:
> changes v3:
> - rename port_mode to master_slave
> - move validation code to net/ethtool/linkmodes.c
> - add UNSUPPORTED state and avoid sending unsupported fields
> - more formatting and
changes v3:
- rename port_mode to master_slave
- move validation code to net/ethtool/linkmodes.c
- add UNSUPPORTED state and avoid sending unsupported fields
- more formatting and naming fixes
- tja11xx: support only force mode
- tja11xx: mark state as unsupported
changes v3:
- provide separate
On 5/3/20 6:24 AM, Roman Penyaev wrote:
> On 2020-05-02 00:09, Jason Baron wrote:
>> On 5/1/20 5:02 PM, Roman Penyaev wrote:
>>> Hi Jason,
>>>
>>> That is indeed a nice catch.
>>> Seems we need smp_rmb() pair between list_empty_careful(>rdllist) and
>>> READ_ONCE(ep->ovflist) for
Move out the initialization function to l1d_flush_init_once()
so that it can be reused for subsequent patches. The side-effect
of this patch is that the memory allocated for l1d flush pages
is no longer freed up and the memory allocated once is shared
amongst callers.
l1d_flush_sw/hw() are now
Implement a mechanism to selectively flush the L1D cache. The goal is to
allow tasks that are paranoid due to the recent snoop assisted data sampling
vulnerabilites, to flush their L1D on being switched out. This protects
their data from being snooped or leaked via side channels after the task
Add documentation of l1d flushing, explain the need for the
feature and how it can be used.
Signed-off-by: Balbir Singh
Reviewed-by: Kees Cook
---
Documentation/admin-guide/hw-vuln/index.rst | 1 +
.../admin-guide/hw-vuln/l1d_flush.rst | 40 +++
2 files changed, 41
cond_ibpb() has the necessary bits required to track the
previous mm in switch_mm_irqs_off(). This can be reused for
other use cases like L1D flushing (on context switch out).
Suggested-by: Thomas Gleixner
Signed-off-by: Balbir Singh
---
arch/x86/include/asm/tlbflush.h | 2 +-
Refactor the existing assembly bits into smaller helper functions
and also abstract L1D_FLUSH into a helper function. Use these
functions in kvm for L1D flushing.
Reviewed-by: Kees Cook
Signed-off-by: Balbir Singh
---
arch/x86/include/asm/cacheflush.h | 3 ++
arch/x86/kernel/l1d_flush.c
Split out the allocation and free routines to be used in a follow
up set of patches (to reuse for L1D flushing).
Signed-off-by: Balbir Singh
Reviewed-by: Kees Cook
---
arch/x86/include/asm/cacheflush.h | 3 +++
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/l1d_flush.c | 36
Provide a mechanism to flush the L1D cache on context switch. The goal
is to allow tasks that are paranoid due to the recent snoop assisted data
sampling vulnerabilites, to flush their L1D on being switched out.
This protects their data from being snooped or leaked via side channels
after the
On 28-04-2020 15:29, Thierry Reding wrote:
@@ -2042,6 +2044,19 @@ static int tegra_xudc_gadget_stop(struct usb_gadget
*gadget)
return 0;
}
+static int tegra_xudc_gadget_vbus_draw(struct usb_gadget *gadget,
+ unsigned int m_a)
+{
+
This patch removes the unused functions set_kernel_text_rw/ro.
Currently, it is not being invoked from anywhere and no other architecture
(except arm) uses this code. Even in ARM, these functions are not invoked
from anywhere currently.
Fixes: d27c3c90817e ("riscv: add STRICT_KERNEL_RWX support")
This adds tests which will validate architecture page table helpers and
other accessors in their compliance with expected generic MM semantics.
This will help various architectures in validating changes to existing
page table helpers or addition of new ones.
This test covers basic page table
This just defines mm_p4d_folded() to check whether P4D page table level is
folded at runtime.
Cc: Thomas Gleixner
Cc: Andrew Morton
Cc: Ingo Molnar
Cc: x...@kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Kirill A. Shutemov
Signed-off-by: Anshuman Khandual
---
This adds a test validation for architecture exported page table helpers.
Patch adds basic transformation tests at various levels of the page table.
This test was originally suggested by Catalin during arm64 THP migration
RFC discussion earlier. Going forward it can include more specific tests
On Fri, May 01, 2020 at 06:12:07PM +0200, Dietmar Eggemann wrote:
> On 30/04/2020 15:10, Pavan Kondeti wrote:
> > On Mon, Apr 27, 2020 at 10:37:08AM +0200, Dietmar Eggemann wrote:
> >> From: Luca Abeni
>
> [...]
>
> >> @@ -1653,10 +1654,19 @@ select_task_rq_dl(struct task_struct *p, int cpu,
>
On 5/3/20 12:23 AM, Dongyang Zhan wrote:
> Hi,
>
> I am a security researcher, my name is Dongyang Zhan. I found a potential bug.
>
> I hope you can help me to confirm it.
>
> Thank you.
>
> Possible memory leak in Linux 4.10.17. The function unxz() in
It would be more helpful if you could
Put __cpu_up_stack_pointer and __cpu_up_task_pointer in data section.
Currently, these two variables are put in bss section, there is a
potential risk that secondary harts get the uninitialized value before
main hart finishing the bss clearing. In this case, all secondary
harts would pass the
Hi all,
Today's linux-next merge of the devicetree tree got a conflict in:
Documentation/devicetree/bindings/display/panel/panel-common.yaml
between commit:
92e513fb0798 ("dt-bindings: display: grammar fixes in panel/")
from the drm tree and commit:
3d21a4609335 ("dt-bindings: Remove
Prior to 1d27732f411d ("net: dsa: setup and teardown ports"), we would
not treat failures to set-up an user port as fatal, but after this
commit we would, which is a regression for some systems where interfaces
may be declared in the Device Tree, but the underlying hardware may not
be present
Hi all,
After merging the keys tree, today's linux-next build (x86_64
allmodconfig) produced these warnings:
scripts/Makefile.lib:8: 'always' is deprecated. Please use 'always-y' instead
scripts/Makefile.lib:12: 'hostprogs-y' and 'hostprogs-m' are deprecated. Please
use 'hostprogs' instead
After commit f0b231101c94 ("mm/SLUB: delay giving back empty slubs to
IRQ enabled regions"), when the free_slab() is invoked with the IRQ
disabled, the empty slubs are moved to a per-CPU list and will be
freed after IRQ enabled later. But in the current codes, there is
a check to see if there
Hi all,
On Mon, 4 May 2020 13:25:29 +1000 Stephen Rothwell
wrote:
>
> Due to further changes in Linus' tree over the weekend, this fixup is
> not linger needed.
"no longer" (Monday's ...)
--
Cheers,
Stephen Rothwell
pgpQJB6x10RtY.pgp
Description: OpenPGP digital signature
Hi all,
On Mon, 2 Mar 2020 11:37:37 +1100 Stephen Rothwell
wrote:
>
> After merging the keys tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
>
> fs/io_uring.c: In function 'io_splice_punt':
> fs/io_uring.c:2473:6: error: too few arguments to function 'get_pipe_info'
Hi all,
Today's linux-next merge of the keys tree got conflicts in:
samples/Kconfig
samples/Makefile
between commit:
3ba9c29d1877 ("samples: watchdog: use 'userprogs' syntax")
from the kbuild tree and commit:
631ec151fd96 ("Add sample notification program")
from the keys tree.
I
As debug information gets larger and larger, it helps significantly save
the size of vmlinux images to compress the information in the debug
information sections. Note: this debug info is typically split off from
the final compressed kernel image, which is why vmlinux is what's used
in conjunction
2020년 5월 1일 (금) 오후 11:06, Eric W. Biederman 님이 작성:
>
> js1...@gmail.com writes:
>
> > From: Joonsoo Kim
> >
> > Until now, PageHighMem() is used for two different cases. One is to check
> > if there is a direct mapping for this page or not. The other is to check
> > the zone of this page, that
On Wed, Apr 29, 2020 at 06:36:50AM -0700, Matthew Wilcox wrote:
> @@ -886,7 +906,7 @@ static int __add_to_page_cache_locked(struct page *page,
> /* Leave page->index set: truncation relies upon it */
> if (!huge)
> mem_cgroup_cancel_charge(page, memcg, false);
> -
2020년 5월 1일 (금) 오후 9:34, Christoph Hellwig 님이 작성:
>
> On Fri, May 01, 2020 at 09:15:30PM +0900, Joonsoo Kim wrote:
> > I think that PageHighMemZone() is long and complicated enough to have
> > a macro.
>
> It is. But then again it also shouldn't really be used by anything
> but MM internals.
I'm
2020년 5월 1일 (금) 오후 9:30, Christoph Hellwig 님이 작성:
>
> On Wed, Apr 29, 2020 at 12:26:40PM +0900, js1...@gmail.com wrote:
> > From: Joonsoo Kim
> >
> > Until now, PageHighMem() is used for two different cases. One is to check
> > if there is a direct mapping for this page or not. The other is to
2020년 5월 1일 (금) 오후 9:26, Christoph Hellwig 님이 작성:
>
> On Wed, Apr 29, 2020 at 12:26:39PM +0900, js1...@gmail.com wrote:
> > From: Joonsoo Kim
> >
> > Until now, PageHighMem() is used for two different cases. One is to check
> > if there is a direct mapping for this page or not. The other is to
2020년 5월 1일 (금) 오후 9:24, Christoph Hellwig 님이 작성:
>
> On Wed, Apr 29, 2020 at 12:26:38PM +0900, js1...@gmail.com wrote:
> > From: Joonsoo Kim
> >
> > Until now, PageHighMem() is used for two different cases. One is to check
> > if there is a direct mapping for this page or not. The other is to
syzbot suspects this bug was fixed by commit:
commit 4b793acdca0050739b99ace6a8b9e7f717f57c6b
Author: Taehee Yoo
Date: Fri Feb 28 18:01:46 2020 +
hsr: use netdev_err() instead of WARN_ONCE()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=130746ffe0
start commit:
2020년 5월 1일 (금) 오후 9:22, Christoph Hellwig 님이 작성:
>
> On Wed, Apr 29, 2020 at 12:26:37PM +0900, js1...@gmail.com wrote:
> > index 6598001..be759a6 100644
> > --- a/kernel/power/snapshot.c
> > +++ b/kernel/power/snapshot.c
> > @@ -1227,7 +1227,7 @@ static struct page *saveable_highmem_page(struct
On 5/1/20 7:22 PM, Eric Biggers wrote:
On Tue, Apr 07, 2020 at 04:03:18PM -0400, Waiman Long wrote:
For kvmalloc'ed data object that contains sensitive information like
cryptographic key, we need to make sure that the buffer is always
cleared before freeing it. Using memset() alone for buffer
On Sat, May 02, 2020 at 11:16:30PM +, Christopher Lameter wrote:
> On Fri, 1 May 2020, Rafael Aquini wrote:
>
> > Sometimes it is desirable to override SLUB's debug facilities
> > default behavior upon stumbling on a cache or object error
> > and just stop the execution in order to grab a
On Fri, May 01, 2020 at 07:17:24PM -0400, Qian Cai wrote:
>
>
> > On May 1, 2020, at 5:54 PM, Rafael Aquini wrote:
> >
> > It seems like a good idea which also would required "adding things"
> > elsewhere, but doesn't look mutually exclusive with the approach here.
>
> Also, what’s so special
On Sun, May 03, 2020 at 08:58:58PM -0400, Joel Fernandes wrote:
> On Sun, May 03, 2020 at 05:20:32PM -0700, Paul E. McKenney wrote:
> > On Sun, May 03, 2020 at 07:42:50PM -0400, Joel Fernandes wrote:
> > > On Fri, May 01, 2020 at 02:37:53PM -0700, Paul E. McKenney wrote:
> > > [...]
> > > > > @@
Marek Behún reported a case where pkg-config fails to detect the
libyaml-dev package, which is presumably a bug of the distro.
Irrespective of that, I am not a big fan of pkg-config in the Makefile
parse stage. The cost of pkg-config is quite small, but it is evaluated
everytime we run make, even
Currently, cmd_dtc takes $(2) to select the target format. The
additional parameter complicates things when it is used with
cmd_and_fixdep and if_changed_rule.
To make it easier to understand, use a separate cmd_dtc_yaml.
One visible change is, 'DTCYAML' is used for the log when compiling
*.dts
Hi Boris,
On 30/4/2020 9:01 pm, Boris Brezillon wrote:
On Thu, 30 Apr 2020 14:36:00 +0200
Boris Brezillon wrote:
On Thu, 30 Apr 2020 17:07:03 +0800
"Ramuthevar, Vadivel MuruganX"
wrote:
The question is, is it the same value we have in nand_pa or it is
different?
Different
Hi Boris,
Thank you very much for the review comments and your time...
On 30/4/2020 9:01 pm, Boris Brezillon wrote:
On Thu, 30 Apr 2020 14:36:00 +0200
Boris Brezillon wrote:
On Thu, 30 Apr 2020 17:07:03 +0800
"Ramuthevar, Vadivel MuruganX"
wrote:
The question is, is it the same value
Hi Boris,
Thank you very much for the review comments and giving inputs...
On 30/4/2020 8:36 pm, Boris Brezillon wrote:
On Thu, 30 Apr 2020 17:07:03 +0800
"Ramuthevar, Vadivel MuruganX"
wrote:
The question is, is it the same value we have in nand_pa or it is
different?
Different
Hi all,
[Just adding cc]
On Mon, 4 May 2020 11:46:25 +1000 Stephen Rothwell
wrote:
>
> Hi all,
>
> After merging the char-misc tree, Friday's linux-next build (arm64
> allmodconfig) failed like this:
>
> ERROR: modpost: "zynqmp_pm_fpga_get_status" [drivers/fpga/zynqmp-fpga.ko]
> undefined!
Hi all,
After merging the char-misc tree, Friday's linux-next build (arm64
allmodconfig) failed like this:
ERROR: modpost: "zynqmp_pm_fpga_get_status" [drivers/fpga/zynqmp-fpga.ko]
undefined!
ERROR: modpost: "zynqmp_pm_fpga_load" [drivers/fpga/zynqmp-fpga.ko] undefined!
Presumably caused by
On Sun, May 03, 2020 at 06:09:01PM -0700, ira.we...@intel.com wrote:
> From: Ira Weiny
>
> The kmap infrastructure has been copied almost verbatim to every architecture.
> This series consolidates obvious duplicated code by defining core functions
> which call into the architectures only when
Hi Nikolaus,
Le dim. 29 mars 2020 à 19:35, H. Nikolaus Schaller
a écrit :
so that the driver can load by matching the device tree
if compiled as module.
Signed-off-by: H. Nikolaus Schaller
Please add:
Cc: sta...@vger.kernel.org # v5.3+
Fixes: 90b86fcc47b4 ("DRM: Add KMS driver for the
Hi Christoph,
On Fri, 24 Apr 2020 08:43:36 +0200 Christoph Hellwig wrote:
>
> Extern declarations in .c files are a bad style and can lead to
> mismatches. Use existing definitions in headers where they exist,
> and otherwise move the external declarations to suitable header
> files.
>
>
From: Ira Weiny
To support kmap_atomic_prot(), all architectures need to support
protections passed to their kmap_atomic_high() function. Pass
protections into kmap_atomic_high() and change the name to
kmap_atomic_high_prot() to match.
Then define kmap_atomic_prot() as a core function which
From: Ira Weiny
The kmap infrastructure has been copied almost verbatim to every architecture.
This series consolidates obvious duplicated code by defining core functions
which call into the architectures only when needed.
Some of the k[un]map_atomic() implementations have some similarities but
From: Ira Weiny
Move the kmap() build bug to kmap_init() to facilitate patches to lift
kmap() to the core.
Reviewed-by: Christoph Hellwig
Signed-off-by: Ira Weiny
---
Changes from V1:
combine code onto 1 line.
---
arch/xtensa/include/asm/highmem.h | 5 -
arch/xtensa/mm/highmem.c
From: Ira Weiny
The kmap code for all the architectures is almost 100% identical.
Lift the common code to the core. Use ARCH_HAS_KMAP_FLUSH_TLB to
indicate if an arch defines kmap_flush_tlb() and call if if needed.
This also has the benefit of changing kmap() on a number of
architectures to
From: Ira Weiny
During this kmap() conversion series we must maintain bisect-ability.
To do this, kmap_atomic_prot() in x86, powerpc, and microblaze need to
remain functional.
Create a temporary inline version of kmap_atomic_prot within these
architectures so we can rework their kmap_atomic()
From: Ira Weiny
Every arch has the same code to ensure atomic operations and a check for
!HIGHMEM page.
Remove the duplicate code by defining a core kmap_atomic() which only
calls the arch specific kmap_atomic_high() when the page is high memory.
Signed-off-by: Ira Weiny
---
Changes from V1:
From: Ira Weiny
To support kmap_atomic_prot() on all architectures each arch must
support protections passed in to them.
Change csky, mips, nds32 and xtensa to use their global constant
kmap_prot rather than a hard coded value which was equal.
Reviewed-by: Christoph Hellwig
Signed-off-by: Ira
From: Ira Weiny
We want to support kmap_atomic_prot() on all architectures and it makes
sense to define kmap_atomic() to use the default kmap_prot.
So we ensure all arch's have a globally available kmap_prot either as a
define or exported symbol.
Signed-off-by: Ira Weiny
---
From: Ira Weiny
All architectures do exactly the same thing for kunmap(); remove all the
duplicate definitions and lift the call to the core.
This also has the benefit of changing kmap_unmap() on a number of
architectures to be an inline call rather than an actual function.
Reviewed-by:
From: Ira Weiny
kmap_atomic_prot() is now exported by all architectures. Use this
function rather than open coding a driver specific kmap_atomic.
Reviewed-by: Christian König
Reviewed-by: Christoph Hellwig
Signed-off-by: Ira Weiny
---
drivers/gpu/drm/ttm/ttm_bo_util.c| 56
From: Ira Weiny
Replace the use of BUG_ON(in_interrupt()) in the kmap() and kunmap()
in favor of might_sleep().
Besides the benefits of might_sleep(), this normalizes the
implementations such that they can be made generic in subsequent
patches.
Reviewed-by: Dan Williams
Reviewed-by: Christoph
From: Ira Weiny
Every single architecture (including !CONFIG_HIGHMEM) calls...
pagefault_enable();
preempt_enable();
... before returning from __kunmap_atomic(). Lift this code into the
kunmap_atomic() macro.
While we are at it rename __kunmap_atomic() to kunmap_atomic_high()
Hi Nikolaus,
So I just wrote a HDMI driver for a different chip, I guess I can
answer some of your questions now.
Le lun. 13 avril 2020 à 13:25, Paul Cercueil a
écrit :
Hi Nikolaus,
Le sam. 11 avril 2020 à 16:14, H. Nikolaus Schaller
a écrit :
Hi,
we (Paul Boddie and me) are working
On Sun, May 03, 2020 at 05:20:32PM -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 07:42:50PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 02:37:53PM -0700, Paul E. McKenney wrote:
> > [...]
> > > > @@ -2993,41 +2994,73 @@ put_cached_bnode(struct kfree_rcu_cpu *krcp,
> > > >
On Mon, 2020-05-04 at 08:54 +0900, Masami Hiramatsu wrote:
> On Fri, 1 May 2020 17:37:56 +0200
> Mauro Carvalho Chehab wrote:
[]
> > diff --git a/MAINTAINERS b/MAINTAINERS
[]
> > @@ -9855,7 +9855,7 @@ L:linux-kernel@vger.kernel.org
> > L: linux-a...@vger.kernel.org
> > S: Supported
> > T:
On Sun, May 03, 2020 at 05:23:09PM -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 07:44:00PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 01:52:46PM -0700, Joe Perches wrote:
> > > On Fri, 2020-05-01 at 12:05 -0700, Paul E. McKenney wrote:
> > > > On Tue, Apr 28, 2020 at
On Sun, May 03, 2020 at 05:26:56PM -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 07:52:13PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 12:05:55PM -0700, Paul E. McKenney wrote:
> > > On Tue, Apr 28, 2020 at 10:58:42PM +0200, Uladzislau Rezki (Sony) wrote:
> > > > From:
On Sun, 2020-05-03 at 17:23 -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 07:44:00PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 01:52:46PM -0700, Joe Perches wrote:
[]
> > > Perhaps a change to coding-style.rst
> > > ---
> > > diff --git
On Sun, May 03, 2020 at 05:28:55PM -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 08:12:58PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 03:39:09PM -0700, Paul E. McKenney wrote:
> > > On Tue, Apr 28, 2020 at 10:58:58PM +0200, Uladzislau Rezki (Sony) wrote:
> > > > Update
On Sun, May 03, 2020 at 05:29:47PM -0700, Paul E. McKenney wrote:
> On Sun, May 03, 2020 at 08:24:37PM -0400, Joel Fernandes wrote:
> > On Fri, May 01, 2020 at 04:00:52PM -0700, Paul E. McKenney wrote:
> > > On Tue, Apr 28, 2020 at 10:58:59PM +0200, Uladzislau Rezki (Sony) wrote:
> > > > From:
On Sun, May 03, 2020 at 08:24:37PM -0400, Joel Fernandes wrote:
> On Fri, May 01, 2020 at 04:00:52PM -0700, Paul E. McKenney wrote:
> > On Tue, Apr 28, 2020 at 10:58:59PM +0200, Uladzislau Rezki (Sony) wrote:
> > > From: "Joel Fernandes (Google)"
> > >
> > > Handle cases where the the object
On Sun, May 03, 2020 at 08:12:58PM -0400, Joel Fernandes wrote:
> On Fri, May 01, 2020 at 03:39:09PM -0700, Paul E. McKenney wrote:
> > On Tue, Apr 28, 2020 at 10:58:58PM +0200, Uladzislau Rezki (Sony) wrote:
> > > Update the kvfree_call_rcu() with head-less support, it
> > > means an object
On Sun, May 03, 2020 at 07:52:13PM -0400, Joel Fernandes wrote:
> On Fri, May 01, 2020 at 12:05:55PM -0700, Paul E. McKenney wrote:
> > On Tue, Apr 28, 2020 at 10:58:42PM +0200, Uladzislau Rezki (Sony) wrote:
> > > From: "Joel Fernandes (Google)"
> > >
> > > Simple clean up of comments in
On Fri, May 01, 2020 at 04:06:38PM -0700, Paul E. McKenney wrote:
> On Tue, Apr 28, 2020 at 10:59:01PM +0200, Uladzislau Rezki (Sony) wrote:
> > Make a kvfree_call_rcu() function to support head-less
> > freeing. Same as for tree-RCU, for such purpose we store
> > pointers in array. SLAB and
On 5/3/2020 3:46 PM, Jason Gunthorpe wrote:
On Sun, May 03, 2020 at 03:40:44PM -0700, Dey, Megha wrote:
On 5/3/2020 3:25 PM, Jason Gunthorpe wrote:
On Fri, May 01, 2020 at 03:30:02PM -0700, Dey, Megha wrote:
Hi Jason,
On 4/23/2020 1:11 PM, Jason Gunthorpe wrote:
On Tue, Apr 21, 2020 at
On Fri, May 01, 2020 at 04:00:52PM -0700, Paul E. McKenney wrote:
> On Tue, Apr 28, 2020 at 10:58:59PM +0200, Uladzislau Rezki (Sony) wrote:
> > From: "Joel Fernandes (Google)"
> >
> > Handle cases where the the object being kvfree_rcu()'d is not aligned by
> > 2-byte boundaries.
> >
> >
On Sun, May 03, 2020 at 07:44:00PM -0400, Joel Fernandes wrote:
> On Fri, May 01, 2020 at 01:52:46PM -0700, Joe Perches wrote:
> > On Fri, 2020-05-01 at 12:05 -0700, Paul E. McKenney wrote:
> > > On Tue, Apr 28, 2020 at 10:58:42PM +0200, Uladzislau Rezki (Sony) wrote:
> > > > Simple clean up of
On Sun, May 03, 2020 at 07:42:50PM -0400, Joel Fernandes wrote:
> On Fri, May 01, 2020 at 02:37:53PM -0700, Paul E. McKenney wrote:
> [...]
> > > @@ -2993,41 +2994,73 @@ put_cached_bnode(struct kfree_rcu_cpu *krcp,
> > > static void kfree_rcu_work(struct work_struct *work)
> > > {
> > >
On 5/3/2020 3:36 PM, Jason Gunthorpe wrote:
On Sun, May 03, 2020 at 03:31:39PM -0700, Dey, Megha wrote:
Hi Jason,
On 5/3/2020 3:22 PM, Jason Gunthorpe wrote:
On Fri, May 01, 2020 at 03:31:51PM -0700, Dey, Megha wrote:
This has been my concern reviewing the implementation. IMS needs more
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