Hello Again Mark,
On Wed, Dec 05, 2018 at 05:27:01PM +, Mark Brown wrote:
> On Wed, Dec 05, 2018 at 10:22:51AM +0200, Matti Vaittinen wrote:
> > On Tue, Dec 04, 2018 at 05:21:37PM +, Mark Brown wrote:
> > > On Fri, Nov 30, 2018 at 10:59:08AM +0200, Matti Vaittinen wrote:
>
> > > This soun
On Fri 07-12-18 10:56:51, Pingfan Liu wrote:
[...]
> In a short word, the fix method should consider about the two factors:
> semantic of online-node and the effect on all archs
I am pretty sure there is a lot of room for unification in this area.
Nevertheless I strongly believe the bug should be
Hello; kindly see the attached my proposal Charities donation.
Mrs. Joy Smith Johnson.rtf
Description: RTF file
On Thu 06-12-18 20:31:46, Linus Torvalds wrote:
> [ Oops. different thread for me due to edited subject, so I saw this
> after replying to the earlier email by David ]
Sorry about that but I really wanted to make the actual discussion about
semantic clearly distinguished because the thread just gr
Good to know. Sorry because of the email.
Sent from my iPhone
> On 6. Dec 2018, at 20:36, Christoph Hellwig wrote:
>
>> On Thu, Dec 06, 2018 at 06:10:54PM +0100, Christian Zigotzky wrote:
>> Please don’t merge this code. We are still testing and trying to figure out
>> where the problems are i
In DMA engine framework, add 8250 mtk dma to support it.
Signed-off-by: Long Cheng
---
drivers/dma/mediatek/8250_mtk_dma.c | 847 +++
drivers/dma/mediatek/Kconfig| 11 +
drivers/dma/mediatek/Makefile |1 +
3 files changed, 859 insertions(+)
c
On Thu, Dec 06, 2018 at 06:07:59PM +0100, Michael Nazzareno Trimarchi wrote:
> On Thu, Dec 6, 2018 at 4:34 PM Maxime Ripard
> wrote:
> > On Thu, Dec 06, 2018 at 06:53:05PM +0530, Jagan Teki wrote:
> > > Allwinner A64 CSI controller has similar features as like in
> > > H3, So add support for A64
In Mediatek SOCs, the uart can support DMA function.
Base on DMA engine formwork, we add the DMA code to support uart. And put the
code under drivers/dma.
This series contains document bindings, Kconfig to control the function enable
or not,
device tree including interrupt and dma device node, t
1. add uart APDMA controller device node
2. add uart 0/1/2/3/4/5 DMA function
Signed-off-by: Long Cheng
---
arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 50 +
1 file changed, 50 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
b/arch/arm64/boot/
Hi Masahiro,
Masahiro Yamada wrote on Wed, 28 Nov
2018 14:27:35 +0900:
> I sent this series on September,
> and Miquel replied this series was applied:
> http://patchwork.ozlabs.org/patch/967242/
>
> But, It turned out not applied.
>
> I rebased it and resending now.
>
>
> Masahiro Yamada (2
On Fri, Dec 7, 2018 at 3:28 PM Lee Jones wrote:
>
> On Wed, 05 Dec 2018, Sebastian Reichel wrote:
>
> > Hi,
> >
> > On Fri, Nov 30, 2018 at 04:31:28PM +0800, Chen-Yu Tsai wrote:
> > > On Wed, Nov 21, 2018 at 1:52 AM Oskari Lemmela wrote:
> > > >
> > > > AXP813 AC power supply support with input c
On Thu 06-12-18 15:49:04, David Rientjes wrote:
> On Thu, 6 Dec 2018, Michal Hocko wrote:
>
> > MADV_HUGEPAGE changes the picture because the caller expressed a need
> > for THP and is willing to go extra mile to get it. That involves
> > allocation latency and as of now also a potential remote ac
VIRTIO_PCI_CONFIG() is deprecated. Use VIRTIO_PCI_CONFIG_OFF() instead.
Signed-off-by: Dongli Zhang
---
drivers/virtio/virtio_pci_legacy.c | 6 --
include/uapi/linux/virtio_pci.h| 2 --
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/virtio/virtio_pci_legacy.c
b/d
On Wed, 05 Dec 2018, Pascal PAILLET-LME wrote:
>
> pascal paillet (p.pail...@st.com) Le Mans / France
> Microcontrollers and Digital ICs Group | Application Development
> TEL: +33.(0)2.44.02.74.69 | TINA: 166 7469
>
> Le 12/05/2018 10:36 AM, Lee Jones a écrit :
> > On Tue, 04 Dec 2018, Pascal PA
On Wed, 05 Dec 2018, Sebastian Reichel wrote:
> Hi,
>
> On Fri, Nov 30, 2018 at 04:31:28PM +0800, Chen-Yu Tsai wrote:
> > On Wed, Nov 21, 2018 at 1:52 AM Oskari Lemmela wrote:
> > >
> > > AXP813 AC power supply support with input current and
> > > voltage limiting support.
> > >
> > > AXP803 AC
On Fri, Dec 07, 2018 at 11:41:35AM +0530, Firoz Khan wrote:
> The purpose of this patch series is, we can easily
> add/modify/delete system call table support by cha-
> nging entry in syscall.tbl file instead of manually
> changing many files. The other goal is to unify the
> system call table gen
On 12/7/18 7:16 AM, Nicolas Boichat wrote:
> IOMMUs using ARMv7 short-descriptor format require page tables
> to be allocated within the first 4GB of RAM, even on 64-bit systems.
> On arm64, this is done by passing GFP_DMA32 flag to memory allocation
> functions.
>
> For IOMMU L2 tables that only
On Thu, 06 Dec 2018, Cheng-yi Chiang wrote:
> On Wed, Dec 5, 2018 at 7:34 PM Lee Jones wrote:
> >
> > On Wed, 05 Dec 2018, Lee Jones wrote:
> >
> > > On Wed, 05 Dec 2018, Cheng-yi Chiang wrote:
> > >
> > > > Hi Lee,
> > > >
> > > > I tried to apply this patch based on
> > > > for-mfd-next branch
On Fri, Dec 07, 2018 at 06:19:48AM +0530, Keerthy wrote:
> Use devm_regmap_add_irq_chip and clean up error path in probe.
> Hence clean up the probe error path and the remove function.
>
> Reported-by: Christian Hohnstaedt
> Signed-off-by: Keerthy
> ---
>
> Changes in v2:
>
> * Cleaned up re
On 07/12/2018 02:06, Kunihiko Hayashi wrote:
> This converts license boilerplate to SPDX identifier, and removes
> unnecessary lines.
>
> Signed-off-by: Kunihiko Hayashi
> ---
Reviewed-by: Daniel Lezcano
> drivers/thermal/uniphier_thermal.c | 13 +
> 1 file changed, 1 insertion(+)
On Thu, Dec 06, 2018 at 08:37:41AM -0800, Todd Kjos wrote:
> On Thu, Dec 6, 2018 at 6:51 AM Greg KH wrote:
> >
> > On Wed, Dec 05, 2018 at 03:19:24PM -0800, Todd Kjos wrote:
> > > Add __acquire()/__release() annnotations to fix warnings
> > > in sparse context checking
> > >
> > > There is one cas
On Fri, 7 Dec 2018 11:53:40 +1100
Stephen Rothwell wrote:
> Today's linux-next merge of the jc_docs tree got a conflict in:
>
> Documentation/filesystems/index.rst
>
> between commit:
>
> 1b71a6809f96 ("fs-verity: add a documentation file")
>
> from the fscrypt tree and commit:
>
> 7bb
On 07/12/2018 07:05, Anson Huang wrote:
> i.MX TPM needs "ipg" clock for register access and "per" clock for
> timer function, the driver gets "ipg" clock by searching the clock
> name, but timer-of initialization will get first clock in device
> tree TPM node since no clock name specified in of_cl
On 07/12/2018 02:13, Tao Ren wrote:
> On 11/5/18, 11:00 AM, "Tao Ren" wrote:
>
>> On 11/5/18, 10:51 AM, "Daniel Lezcano" wrote:
>>> Oh right, sorry. Should it go to stable also ? Is there a Fixes tag it can
>>> apply ?
>>>
>> Personally I don't think it needs to go to stable, because I don't se
@Nick. Would mind giving this patch an "Acked-by"?
This issue causes any Android who uses latest kernel cannot mount proc
with "hidepid=2" option. Which causes problems
程洋 于2018年12月5日周三 下午3:26写道：
>
> Anyone who can review my patch?
>
> 程洋 于2018年11月30日周五 上午10:34写道：
> >
> > Here is an article illus
to enable the config
and test it correctly. There was bug on where the .config file ended
up. I've fixed it and sent v4 of the patches. Please consider applying
them instead.
Regards,
Amit
> I have used the thermal tree from next-20181206 for today.
>
> --
> Cheers,
> Stephen Rothwell
(Apologies for the build failure. My scripts to enable these configs and
build-test them failed. They've been fixed now)
Move the various drivers for Intel platforms into their own subdir. Also
consolidate Qualcomm drivers into the qcom subdir.
This cleans up the directory making it easier to fin
This cleans up the directory a bit, now that we have several other
platforms using platform-specific sub-directories. Compile-tested with
ARCH=x86 defconfig and the drivers explicitly enabled with menuconfig.
Signed-off-by: Amit Kucheria
Acked-by: Daniel Lezcano
---
drivers/thermal/Kconfig
This cleans up the directory a bit allowing just one place to look for
thermal related drivers for QCOM platforms instead of being scattered in
the root directory and the qcom/ subdirectory. Compile-tested with
ARCH=arm64 defconfig and the driver explicitly enabled with menuconfig.
Signed-off-by:
On Fri, 7 Dec 2018 at 12:10, Naresh Kamboju wrote:
>
> On Wed, 5 Dec 2018 at 15:08, Sasha Levin wrote:
> >
> > From: Roman Gushchin
> >
> > [ Upstream commit 569a933b03f3c48b392fe67c0086b3a6b9306b5a ]
> >
> > Naresh reported an issue with the non-atomic memory allocation of
> > cgroup local stor
Hi Jian Hong,
I call our agent guy @ WTMEC.
Please modify as bellowing then test again.
Remove EAPD control by hidden.
If this modify patch was pass audio test, please regenerate patch to Takashi.
If this patch will solve the speaker no sound issue, I think the model name
maybe could rename to AL
On Thu, Dec 06, 2018 at 03:10:03PM -0700, shuah wrote:
> On 12/6/18 7:38 AM, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 4.19.8 release.
> > There are 41 patches in this series, all will be posted as a response
> > to this one. If anyone has any issues with t
On SAMA5D2 SoC the PIOBU pins do not lose their
voltage during Backup/Self-refresh mode. This can
be useful, for example, when the voltage must remain
positive for a peripheral during Backup/Self-refresh
mode (suspend-to ram is the Linux equivalent state).
v3:
- change driver's compatible to atmel
This patch describes the Security Module's usage as a GPIO
controller for its PIOBU pins. These pins have the special
property of maintaining their voltage during suspend-to-mem.
Signed-off-by: Andrei Stefanescu
---
Documentation/devicetree/bindings/arm/atmel-sysregs.txt | 12 +++-
1 fil
PIOBU pins do not lose their voltage during Backup/Self-refresh.
This patch adds a simple GPIO controller for them and a
maintainer for the driver.
This driver adds support for using the pins as GPIO
offering the possibility to read/set the voltage.
Signed-off-by: Andrei Stefanescu
---
MAINTAIN
On Wed, 5 Dec 2018 at 15:08, Sasha Levin wrote:
>
> From: Roman Gushchin
>
> [ Upstream commit 569a933b03f3c48b392fe67c0086b3a6b9306b5a ]
>
> Naresh reported an issue with the non-atomic memory allocation of
> cgroup local storage buffers:
>
> [ 73.047526] BUG: sleeping function called from inv
The test selects between two identical values, so it doesn't look useful.
It turns out that the tested expression can only be true anyway, so drop
the test, the corresponding parameter, and the corresponding argument at
the only call site.
The semantic match that finds this problem is as follows:
On 12/6/18 9:49 PM, Dongli Zhang wrote:
>
>
> On 12/07/2018 12:12 AM, Joe Jin wrote:
>> Hi Dongli,
>>
>> Maybe move d_swiotlb_usage declare into swiotlb_create_debugfs():
>
> I assume the call of swiotlb_tbl_map_single() might be frequent in some
> situations, e.g., when 'swiotlb=force'.
>
> Th
Now when doing 4-shakehand or adding new streams, sctp has to allocate
new memory for asoc->stream and copy the old stream's information from
the old asoc->stream to the new one. It also cause the stream pointers
to change, by which a panic was even caused due to stream->out_curr's
change.
To fix
This function can dynamically change total_nr_elements of a flex_array,
and keep the old elements of the same memory. Returns 0 if it succeeds.
Note that it won't do any memory allocation or shrinking for elements,
which should be only done by flex_array_prealloc and flex_array_shrink.
Suggested-
Without the support for the total_nr_elements's growing or shrinking
dynamically, flex_array is not that 'flexible'. Like when users want
to change the size, they have to redo flex_array_alloc and copy all
the elements from the old to the new one. The worse thing is every
element's memory gets cha
This patch is to separate the base data memory from struct flex_array and
save it into a page. With this change, total_nr_elements of a flex_array
can grow or shrink without having the old element's memory changed when
the new size of the flex_arry crosses FLEX_ARRAY_BASE_SIZE, which will
be added
From: David Miller
Date: Thu, 06 Dec 2018 22:24:09 -0800 (PST)
> Series applied, thanks!
Erm... actually reverted. Please fix these build failures:
ld: net/ipv6/ip6_offload.o: in function `ipv6_gro_receive':
ip6_offload.c:(.text+0xda2): undefined reference to `udp6_gro_receive'
ld: ip6_offload
Hi,
On Fri, Dec 7, 2018 at 10:15 AM Kishon Vijay Abraham I wrote:
>
> Vivek,
>
> On 04/12/18 6:07 PM, Vivek Gautam wrote:
> > Hi Kishon,
> >
> > On Tue, Dec 4, 2018 at 1:44 PM Kishon Vijay Abraham I wrote:
> >>
> >> Hi Andy Gross, David Brown, Vivek,
> >>
> >> On 30/11/18 3:43 AM, Evan Green wro
From: Paolo Abeni
Date: Wed, 5 Dec 2018 19:13:38 +0100
> The spectre v2 counter-measures, aka retpolines, are a source of measurable
> overhead[1]. We can partially address that when the function pointer refers to
> a builtin symbol resorting to a list of tests vs well-known builtin function
>
Huang Ying writes:
> Hi, Andrew, could you help me to check whether the overall design is
> reasonable?
>
> Hi, Hugh, Shaohua, Minchan and Rik, could you help me to review the
> swap part of the patchset? Especially [02/21], [03/21], [04/21],
> [05/21], [06/21], [07/21], [08/21], [09/21], [10/21
On Thu, Nov 29, 2018 at 02:42:15PM +, Corentin Labbe wrote:
> Hello
>
> This patchset fixes all reported problem by Eric biggers.
>
> Regards
>
> Changes since v4:
> - Inlined functions when !CRYPTO_STATS
>
> Changes since v3:
> - Added a crypto_stats_init as asked vy Neil Horman
> - Fixed
On Sat, Dec 01, 2018 at 04:56:30AM -0500, Yangtao Li wrote:
> Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
>
> Signed-off-by: Yangtao Li
> ---
> drivers/crypto/cavium/nitrox/nitrox_debugfs.c | 48 ---
> 1 file changed, 9 insertions(+), 39 deletions(-)
Patch applied. Th
On Tue, Nov 27, 2018 at 03:27:21PM -0200, Paulo Flabiano Smorigo wrote:
> Add Breno and Nayna as NX/VMX crypto driver maintainers. Also change my
> email address to my personal account and remove Leonidas since he's not
> working with the driver anymore.
>
> Signed-off-by: Paulo Flabiano Smorigo
On Tue, Nov 13, 2018 at 09:40:34AM +, Gilad Ben-Yossef wrote:
> Add support for CryptoCell 703 HW revision and a new co-maintainer.
>
> Gilad Ben-Yossef (3):
> crypto: ccree: add support for CryptoCell 703
> dt-bindings: crypto: ccree: add dt bindings for ccree 703
> MAINTAINERS: ccree:
IOMMUs using ARMv7 short-descriptor format require page tables
to be allocated within the first 4GB of RAM, even on 64-bit systems.
On arm64, this is done by passing GFP_DMA32 flag to memory allocation
functions.
For IOMMU L2 tables that only take 1KB, it would be a waste to allocate
a full page u
This is a follow-up to the discussion in [1], [2].
IOMMUs using ARMv7 short-descriptor format require page tables
(level 1 and 2) to be allocated within the first 4GB of RAM, even
on 64-bit systems.
For L1 tables that are bigger than a page, we can just use __get_free_pages
with GFP_DMA32 (on arm
++ sathn...@linux.vnet.ibm.com,
Hi Satheesh,
On Fri, 7 Dec 2018 at 11:42, Firoz Khan wrote:
>
>
> Changes since v3:
> - split compat syscall table out from native table.
> - modified the script to add new line in the generated
>file.
I have fixed few major issue. Could you perform boot te
A previous patch in this series adds support for SLAB_CACHE_DMA32
kmem caches. This adds the corresponding
/sys/kernel/slab/cache/cache_dma32 entries, and fixes slabinfo
tool.
Signed-off-by: Nicolas Boichat
---
There were different opinions on whether this sysfs entry should
be added, so I'll le
IOMMUs using ARMv7 short-descriptor format require page tables
(level 1 and 2) to be allocated within the first 4GB of RAM, even
on 64-bit systems.
For level 1/2 pages, ensure GFP_DMA32 is used if CONFIG_ZONE_DMA32
is defined (e.g. on arm64 platforms).
For level 2 pages, allocate a slab cache in
> > +
>
> This one maybe not necessary.
Yeah, that is a remind of an include file I used for time measurement.
I hope Andrew can drop that if this is taken.
> > /*
> > * Kmemleak configuration and common defines.
> > */
> > @@ -1547,11 +1548,14 @@ static void kmemleak_scan(void)
> >
On Mon, Dec 03, 2018 at 02:13:08PM +0800, Kevin Wangtao wrote:
> Current mailbox driver of Hi3660 release the mailbox directly
> before sending a new message which may cause last message lost
> and next message sending doesn't take effect actually.
>
> This patch fixes this issue by following the
Hi Linus:
This push fixes the following issues:
- Disable the new crypto stats interface as it's still being changed.
- Fix potential uses-after-free in cbc/cfb/pcbc.
Please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git linus
Herbert Xu (1):
crypto: us
System call table generation script must be run to gener-
ate unistd_32/64.h and syscall_table_32/64/c32/spu.h files.
This patch will have changes which will invokes the script.
This patch will generate unistd_32/64.h and syscall_table-
_32/64/c32/spu.h files by the syscall table generation
script
The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which will generate the
uapi header and syscall table file. This change will also
help to unify the
PowerPC uses a syscall table with native and compat calls
interleaved, which is a slightly simpler way to define two
matching tables.
As we move to having the tables generated, that advantage
is no longer important, but the interleaved table gets in
the way of using the same scripts as on the othe
Move the macro definition for compat_sys_sigsuspend from
asm/systbl.h to the file which it is getting included.
One of the patch in this patch series is generating uapi
header and syscall table files. In order to come up with
a common implimentation across all architecture, we need
to do this chan
NR_syscalls macro holds the number of system call exist
in powerpc architecture. We have to change the value of
NR_syscalls, if we add or delete a system call.
One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file.
The syscall.tbl file conta
The purpose of this patch series is, we can easily
add/modify/delete system call table support by cha-
nging entry in syscall.tbl file instead of manually
changing many files. The other goal is to unify the
system call table generation support implementation
across all the architectures.
The sy
Hi,
Anurag Kumar Vulisha writes:
>>> @@ -2286,7 +2286,12 @@ static int
>>dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
>>> if (event->status & DEPEVT_STATUS_SHORT && !chain)
>>> return 1;
>>>
>>> - if (event->status & (DEPEVT_STATUS_IOC | DEPEVT_STATUS_LST))
>>> +
I just realized I forgot to add that this was suggested by Michal.
Sorry, I was a but rushy.
On Thu, 2018-12-06 at 14:19 +0100, Oscar Salvador wrote:
> kmemleak_scan() goes through all online nodes and tries
> to scan all used pages.
> We can do better and use pfn_to_online_page(), so in case we h
i.MX TPM needs "ipg" clock for register access and "per" clock for
timer function, the driver gets "ipg" clock by searching the clock
name, but timer-of initialization will get first clock in device
tree TPM node since no clock name specified in of_clk, that means
the "per" clock MUST be the first
hi,
Anurag Kumar Vulisha writes:
>>Does the data book suggest a value for the timeout?
>>
>
> No, the databook doesn't mention about the timeout value
>
>>> >At this point, it seems that the generic approach will be messier than
>>> >having every
>>> >controller driver implement its own fix.
On 06/12/2018 23:11, Paolo Bonzini wrote:
> On 06/12/18 07:04, Maran Wilson wrote:
>> +config PVH
>> +bool "Support for running PVH guests"
>> +---help---
>> + This option enables the PVH entry point for guest virtual machines
>> + as specified in the x86/HVM direct boot ABI.
>> +
On Thu 06 Dec 21:37 PST 2018, Vinod Koul wrote:
> From: Srinivas Kandagatla
>
> gpll0_out_main parent is cxo so fix it.
>
> Fixes: 652f1813c113 ("clk: qcom: gcc: Add global clock controller driver for
> QCS404")
> Signed-off-by: Srinivas Kandagatla
> Signed-off-by: Vinod Koul
Reviewed-by: B
We recently modified pps_register_source() to return error pointers
instead of NULL but it seems like there was a merge issue and part of
the commit was lost. Anyway, the ptp_clock_register() function needs to
be updated to check for IS_ERR() as well.
Fixes: 3b1ad360acad ("pps: using ERR_PTR inst
On Thu, Nov 29, 2018 at 10:16:26AM -0800, Eric Biggers wrote:
>
> Herbert, can you send this series to Linus for v4.20 after reviewing it?
> We don't want to be stuck with a bad UAPI, and the use-after-free needs to be
> fixed anyway too.
On second thought, I'm just going to revert the whole inter
On 12/07/2018 12:12 AM, Joe Jin wrote:
> Hi Dongli,
>
> Maybe move d_swiotlb_usage declare into swiotlb_create_debugfs():
I assume the call of swiotlb_tbl_map_single() might be frequent in some
situations, e.g., when 'swiotlb=force'.
That's why I declare the d_swiotlb_usage out of any functio
Hello,
Re: Business proposition for you.
I have a client in Russia who will like to invest with your
company. My client is willing to invest $10 Million to $50
million. Can I have your company website to show to my client
your company so that they will check and decide if they will
invest th
Hi Frieder,
> -Original Message-
> From: Schrempf Frieder [mailto:frieder.schre...@kontron.de]
> Sent: Tuesday, December 4, 2018 7:45 PM
> To: linux-...@lists.infradead.org; boris.brezil...@bootlin.com; linux-
> s...@vger.kernel.org; Marek Vasut ; Mark Brown
> ; Han Xu
> Cc: dw...@infrade
On Thu, 2018-12-06 at 15:36 +0100, Boris Brezillon wrote:
> On Thu, 29 Nov 2018 14:29:54 +0800
> Ryder Lee wrote:
>
> > From: Guochun Mao
> >
> > Replace mtd_device_register with mtd_device_parse_register for
> > parsing partitions and add ofpart support.
>
> What's the problem with the defaul
The part of __swap_duplicate() with lock held is separated into a new
function __swap_duplicate_locked(). Because we will add more logic
about the PMD swap mapping into __swap_duplicate() and keep the most
PTE swap mapping related logic in __swap_duplicate_locked().
Just mechanical code refactori
When a PMD swap mapping is removed from a huge swap cluster, for
example, unmap a memory range mapped with PMD swap mapping, etc,
free_swap_and_cache() will be called to decrease the reference count
to the huge swap cluster. free_swap_and_cache() may also free or
split the huge swap cluster, and f
To swapin a THP in one piece, we need to read a huge swap cluster from
the swap device. This patch revised the __read_swap_cache_async() and
its callers and callees to support this. If __read_swap_cache_async()
find the swap cluster of the specified swap entry is huge, it will try
to allocate a T
During mincore(), for PMD swap mapping, swap cache will be looked up.
If the resulting page isn't compound page, the PMD swap mapping will
be split and fallback to PTE swap mapping processing.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johan
During swapoff, for a huge swap cluster, we need to allocate a THP,
read its contents into the THP and unuse the PMD and PTE swap mappings
to it. If failed to allocate a THP, the huge swap cluster will be
split.
During unuse, if it is found that the swap cluster mapped by a PMD
swap mapping is sp
When madvise_free() found a PMD swap mapping, if only part of the huge
swap cluster is operated on, the PMD swap mapping will be split and
fallback to PTE swap mapping processing. Otherwise, if all huge swap
cluster is operated on, free_swap_and_cache() will be called to
decrease the PMD swap mapp
For a PMD swap mapping, zap_huge_pmd() will clear the PMD and call
free_swap_and_cache() to decrease the swap reference count and maybe
free or split the huge swap cluster and the THP in swap cache.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc:
Previously the huge swap cluster will be split after the THP is
swapout. Now, to support to swapin the THP in one piece, the huge
swap cluster will not be split after the THP is reclaimed. So in
memcg, we need to move the swap account for PMD swap mappings in the
process's page table.
When the p
Swapin a THP as a whole isn't desirable in some situations. For
example, for completely random access pattern, swapin a THP in one
piece will inflate the reading greatly. So a sysfs interface:
/sys/kernel/mm/transparent_hugepage/swapin_enabled is added to
configure it. Three options as follow ar
During MADV_WILLNEED, for a PMD swap mapping, if THP swapin is enabled
for the VMA, the whole swap cluster will be swapin. Otherwise, the
huge swap cluster and the PMD swap mapping will be split and fallback
to PTE swap mapping.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea A
This is the final step of the THP swapin support. When reclaiming a
anonymous THP, after allocating the huge swap cluster and add the THP
into swap cache, the PMD page mapping will be changed to the mapping
to the swap space. Previously, the PMD page mapping will be split
before being changed. I
Original code is only for PMD migration entry, it is revised to
support PMD swap mapping.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
Cc: Hugh Dickins
Cc: Minchan Kim
Cc: Rik van Riel
Cc: Dave Hansen
Cc: N
The help of CONFIG_THP_SWAP is updated to reflect the latest progress
of THP (Tranparent Huge Page) swap optimization.
Signed-off-by: "Huang, Ying"
Reviewed-by: Dan Williams
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
Cc: Hugh Dickins
C
2 new /proc/vmstat fields are added, "thp_swapin" and
"thp_swapin_fallback" to count swapin a THP from swap device in one
piece and fallback to normal page swapin.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
C
During fork, the page table need to be copied from parent to child. A
PMD swap mapping need to be copied too and the swap reference count
need to be increased.
When the huge swap cluster has been split already, we need to split
the PMD swap mapping and fallback to PTE copying.
When swap count co
Hi, Andrew, could you help me to check whether the overall design is
reasonable?
Hi, Hugh, Shaohua, Minchan and Rik, could you help me to review the
swap part of the patchset? Especially [02/21], [03/21], [04/21],
[05/21], [06/21], [07/21], [08/21], [09/21], [10/21], [11/21],
[12/21], [20/21], [2
Previously, during swapout, all PMD page mapping will be split and
replaced with PTE swap mapping. And when clearing the SWAP_HAS_CACHE
flag for the huge swap cluster in put_swap_page(), the huge swap
cluster will be split. Now, during swapout, the PMD page mappings to
the THP will be changed to
Currently, "the swap entry" in the page tables is used for a number of
things outside of actual swap, like page migration, etc. We support
the THP/PMD "swap entry" for page migration currently and the
functions behind this are tied to page migration's config
option (CONFIG_ARCH_ENABLE_THP_MIGRATIO
A huge PMD need to be split when zap a part of the PMD mapping etc.
If the PMD mapping is a swap mapping, we need to split it too. This
patch implemented the support for this. This is similar as splitting
the PMD page mapping, except we need to decrease the PMD swap mapping
count for the huge swa
With this patch, when page fault handler find a PMD swap mapping, it
will swap in a THP in one piece. This avoids the overhead of
splitting/collapsing before/after the THP swapping. And improves the
swap performance greatly for reduced page fault count etc.
do_huge_pmd_swap_page() is added in th
To support to swapin the THP in one piece, we need to create PMD swap
mapping during swapout, and maintain PMD swap mapping count. This
patch implements the support to increase the PMD swap mapping
count (for swapout, fork, etc.) and set SWAP_HAS_CACHE flag (for
swapin, etc.) for a huge swap clus
When splitting a THP in swap cache or failing to allocate a THP when
swapin a huge swap cluster, the huge swap cluster will be split. In
addition to clear the huge flag of the swap cluster, the PMD swap
mapping count recorded in cluster_count() will be set to 0. But we
will not touch PMD swap map
On Wed, Dec 05, 2018 at 02:51:02PM +1100, NeilBrown wrote:
>
> If the sequence:
>obj = rhashtable_walk_next(iter);
>rhashtable_walk_stop(iter);
>rhashtable_remove_fast(ht, &obj->head, params);
>rhashtable_walk_start(iter);
>
> races with another thread inserting or removing
> an
From: Srinivas Kandagatla
gpll0_out_main parent is cxo so fix it.
Fixes: 652f1813c113 ("clk: qcom: gcc: Add global clock controller driver for
QCS404")
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Vinod Koul
---
drivers/clk/qcom/gcc-qcs404.c | 2 +-
1 file changed, 1 insertion(+), 1 del
1 - 100 of 1420 matches
Mail list logo
