On 5/31/2019 4:15 AM, Herrenschmidt, Benjamin wrote:
On Thu, 2019-05-30 at 11:19 -0700, Boris Petkov wrote:
On May 30, 2019 3:15:29 AM PDT, Hanna Hawa wrote:
Add support for error detection and correction for Amazon's
Annapurna
Labs SoCs for L1/L2 caches.
So this should be a driver for t
On Sat, Jun 1, 2019 at 7:15 PM David Ahern wrote:
>
> On 6/1/19 12:05 AM, syzbot wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:dfb569f2 net: ll_temac: Fix compile error
> > git tree: net-next
> syzbot team:
>
> Is there any way to know the history of
On (05/28/19 15:42), Petr Mladek wrote:
> On Tue 2019-05-28 13:46:19, Sergey Senozhatsky wrote:
> > On (05/28/19 13:15), Sergey Senozhatsky wrote:
> > > On (05/28/19 01:24), Dmitry Safonov wrote:
> > > [..]
> > > > While handling sysrq the console_loglevel is bumped to default to print
> > > > sysr
On 6/3/2019 10:36 PM, Jin Yao wrote:
In some cases small changes in hot loops can show big differences.
But it's difficult to identify these differences.
perf diff currently can only diff symbols (functions). We can also expand
it to diff cycles of individual programs blocks as reported by ti
csky pmu counter may have different io width. When the counter is smaller
then 64 bits and counter value is smaller than the old value, it will
result to a extremely large delta value. So the sampled value should be
extend to 64 bits to avoid this, the extension bits base on the
reg-io-width proper
This patch adds the documentation to describe that how to add pmu node in
dts.
Signed-off-by: Mao Han
CC: Rob Herring
CC: Guo Ren
CC: linux-c...@vger.kernel.org
---
Documentation/devicetree/bindings/csky/pmu.txt | 38 ++
1 file changed, 38 insertions(+)
create mode 100
This patch change the csky pmu initialization from arch init to
device init. The pmu can be configued with information from
device tree(pmu device name, irq number and etc.).
Signed-off-by: Mao Han
CC: Guo Ren
CC: linux-c...@vger.kernel.org
---
arch/csky/kernel/perf_event.c | 58 +++
csky_pmu_event_init is called several times during the perf record
initialzation. After configure the event counter in either kernel
space or user space, csky_pmu_event_init is called twice with no
attr specified. Configuration will be overwritten with sampling in
both kernel space and user space.
This patch set add hardware sampling support for csky-pmu, and
also add some properties to pmu node definition. perf can record
on hardware event with this patch applied.
Changes since v2:
- update dt-binding(csky pmu use rising edge interrupt)
- use cpuhp_setup_state to enable irq(fix irq ena
From: Guo Ren
ck810 pmu only support event with index 0-8 and 0xd; ck860 only
support event 1~4, 0xa~0x1b. So do not register unsupport event
to hardware cache event, which may leader to unknown behavior.
Signed-off-by: Guo Ren
Signed-off-by: Mao Han
CC: Guo Ren
CC: linux-c...@vger.kernel.org
This patch add interrupt request and handler for csky pmu.
perf can record on hardware event with this patch applied.
Signed-off-by: Mao Han
CC: Guo Ren
CC: linux-c...@vger.kernel.org
---
arch/csky/kernel/perf_event.c | 293 +++---
1 file changed, 277 inserti
perf diff currently can only diff symbols(functions). We should expand it
to diff cycles of individual programs blocks as reported by timed LBR.
This would allow to identify changes in specific code accurately.
We need a new structure to maintain the basic block information, such as,
symbol(functi
The hist__account_cycles() can account cycles per basic
block. The basic block information is saved in cycles_hist
structure.
This patch processes each symbol, get basic blocks from
cycles_hist and add the basic block entries to a new hists
(block_hists in hist_entry). Using a hists is because
we
In some cases small changes in hot loops can show big differences.
But it's difficult to identify these differences.
perf diff currently can only diff symbols (functions). We can also expand
it to diff cycles of individual programs blocks as reported by timed LBR.
This would allow to identify chan
perf record -b ./div
perf record -b ./div
Following is the default perf diff output
# perf diff
# Event 'cycles'
#
# Baseline Delta Abs Shared Object Symbol
# .
#
49.03% +0.30% div [.] m
The block_info contains the program basic block information, i.e,
contains the start address and the end address of this basic block and
how much cycles it takes. We need to compare, sort and even print out
the basic block by some orders, i.e. sort by cycles.
For this purpose, we add block_info fi
Documentation the new computation selection 'cycles'.
Signed-off-by: Jin Yao
---
tools/perf/Documentation/perf-diff.txt | 14 +++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/tools/perf/Documentation/perf-diff.txt
b/tools/perf/Documentation/perf-diff.txt
index da780
We will expand perf diff to support diff cycles of individual programs
blocks, so it requires all data files having branch stacks.
This patch checks HEADER_BRANCH_STACK in header, and only set the flag
has_br_stack when HEADER_BRANCH_STACK are set in all data files.
v2:
---
Move check_file_brs
The target is to compare the performance difference (cycles
diff) for the same basic blocks in different data files.
The same basic block means same function, same start address
and same end address. This patch finds the same basic blocks
from different data files and link them together and resort
The task_struct argument is not getting used in __do_page_fault(). Hence
just drop it and use current or cuurent->mm instead where ever required.
This does not change any functionality.
Signed-off-by: Anshuman Khandual
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: James Morse
Cc: A
On Sun 2019-06-02 08:24:35, Joel Fernandes wrote:
> On Sun, Jun 2, 2019 at 8:20 AM Joel Fernandes wrote:
> >
> > On Sun, Jun 2, 2019 at 3:00 AM Pavel Machek wrote:
> > >
> > > On Sat 2019-06-01 18:27:34, Joel Fernandes (Google) wrote:
> > > > Signed-off-by: Joel Fernandes (Google)
> > >
> > > Th
This consolidates page fault information capture and move them bit earlier.
While here it also adds an wrapper is_el0_write_abort(). It also saves some
cycles by replacing multiple user_mode() calls into a single one earlier
during the fault.
Signed-off-by: Anshuman Khandual
Cc: Catalin Marinas
__do_page_fault() is over complicated with multiple goto statements. This
cleans up the code flow and while there drops local variable vm_fault_t.
Signed-off-by: Anshuman Khandual
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: James Morse
Cc: Andrey Konovalov
Cc: Christoph Hellwig
On Mon, Jun 03, 2019 at 01:26:26PM +0800, Herbert Xu wrote:
> On Sun, Jun 02, 2019 at 08:47:07PM -0700, Paul E. McKenney wrote:
> >
> > 1. These guarantees are of full memory barriers, -not- compiler
> > barriers.
>
> What I'm saying is that wherever they are, they must come with
> compiler
This contains some clean ups for page fault handling in do_page_fault().
This has been boot tested on arm64 platform along with some stress test
but just build tested on others.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: James Morse
Cc: Andrey Konovalov
Cc: Christoph Hellwig
C
There is an inconsistency between down_read_trylock() success and failure
paths while dealing with kernel access for non exception table areas where
it calls __do_kernel_fault(). In case of failure it just bails out without
holding mmap_sem but when it succeeds it does so while holding mmap_sem.
Fi
Hi all,
Changes since 20190531:
Reinstated tree: sh
New tree: risc-v-fixes
My fixes tree is empty again.
The crypto tree gained a conflict against Linus' tree.
The net-next tree lost its build failure.
The clockevents tree gained a build failure for which I reverted a commit.
The xarray tree
As for FOLL_LONGTERM, it is checked in the slow path
__gup_longterm_unlocked(). But it is not checked in the fast path, which
means a possible leak of CMA page to longterm pinned requirement through
this crack.
Place a check in the fast path.
Signed-off-by: Pingfan Liu
Cc: Ira Weiny
Cc: Andrew
To better reflect the held state of pages and make code self-explaining,
rename nr as nr_pinned.
Signed-off-by: Pingfan Liu
Cc: Ira Weiny
Cc: Andrew Morton
Cc: Mike Rapoport
Cc: Dan Williams
Cc: Matthew Wilcox
Cc: John Hubbard
Cc: "Aneesh Kumar K.V"
Cc: Keith Busch
Cc: linux-kernel@vger.k
The komeda internal resources (pipelines) are shared between crtcs,
and resources release by disable_crtc. This commit is working for once
user forgot disabling crtc like app quit abnomally, and then the
resources can not be used by another crtc. Adds drop_master to
shutdown the device and make sur
For a long time we used to hard-code CROSS_COMPILE prefix
for ARC until it started to cause problems, so we decided to
solely rely on CROSS_COMPILE externally set by a user:
commit 40660f1fcee8 ("ARC: build: Don't set CROSS_COMPILE in arch's Makefile").
While it works perfectly fine for build-syst
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> Do not allow an enclave page to be mapped with PROT_EXEC if the source page
> is backed by a
> file on a noexec file system.
>
> Signed-off-by: Sean Christopherson
> ---
> arch/x86/kernel/cpu/sgx/driver/ioctl.c | 26 ++
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> ...to support (the equivalent) of existing Linux Security Module
> functionality.
>
> Because SGX manually manages EPC memory, all enclave VMAs are backed by the
> same vm_file,
> i.e. /dev/sgx/enclave, so that SGX can impl
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> To support LSM integration, SGX will require userspace to explicitly specify
> the allowed
> protections for each page. The allowed protections will be supplied to and
> modified by
> LSMs (based on their policies).
> To pr
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> diff --git a/include/linux/security.h b/include/linux/security.h index
> 659071c2e57c..2f7925eeef7e 100644
> --- a/include/linux/security.h
> +++ b/include/linux/security.h
> @@ -392,6 +392,8 @@ void security_inode_invalidate_
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h index
> 0e8834ac32b7..50a42364a885
> 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -458,6 +458,8 @@ struct vm_operations_struct {
> void (*close)(
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> +/**
> + * sgx_ioc_enclave_add_pages - handler for %SGX_IOC_ENCLAVE_ADD_PAGES
> + *
> + * @filep: open file to /dev/sgx
> + * @cmd: the command value
> + * @arg: pointer to an &sgx_enclave_add_page instance
> + *
> +
On Fri, 31 May 2019, Gwendal Grignou wrote:
> On Fri, May 31, 2019 at 1:13 AM Lee Jones wrote:
> >
> > On Thu, 30 May 2019, Gwendal Grignou wrote:
> >
> > > On Thu, May 30, 2019 at 12:48 AM Lee Jones wrote:
> > > >
> > > > On Wed, 29 May 2019, Gwendal Grignou wrote:
> > > >
> > > > > On Wed, May
Hi Finn,
On Mon, Jun 3, 2019 at 1:32 AM Finn Thain wrote:
> On Sun, 2 Jun 2019, Geert Uytterhoeven wrote:
> > On Sun, Jun 2, 2019 at 3:29 AM Finn Thain
> > wrote:
> > > A system bus error during a PDMA transfer can mess up the calculation
> > > of the transfer residual (the PDMA handshaking hard
Hi all,
My qemu powerpc_pseries_le_defconfig boots failed today with the following
output at shutdown time:
# halt
# Stopping network...[ 32.109495] watchdog: BUG: soft lockup - CPU#0 stuck
for 22s! [ifdown:97]
[ 32.109794] Modules linked in:
[ 32.110367] CPU: 0 PID: 97 Comm: ifdown Not ta
On 2019-06-02 22:07, Joe Perches wrote:
On Sun, 2019-06-02 at 18:35 +0200, Michael Straube wrote:
ETH_ALEN is defined in linux/if_ether.h which is included by
osdep_service.h, so remove the redundant definition from ieee80211.h.
[]
diff --git a/drivers/staging/rtl8188eu/include/ieee80211.h
b/
Fix wrong WCID assignment and add RKV (RX Key of this entry is valid)
flag to check if peer uses the same configuration with previous
handshaking.
If the configuration is mismatch, WTBL indicates a “cipher mismatch”
to stop SEC decryption to prevent the packet from damage.
Suggested-by: YF Luo
S
Enable NL80211_IFTYPE_MESH_POINT and update its path.
Signed-off-by: Ryder Lee
---
Changes since v3 - fix a wrong expression
Changes since v2 - remove unused definitions
---
drivers/net/wireless/mediatek/mt76/mt7615/init.c | 6 ++
drivers/net/wireless/mediatek/mt76/mt7615/main.c | 1 +
drive
-Original Message-
From: Alexander Duyck [mailto:alexander.du...@gmail.com]
Sent: Saturday, June 1, 2019 2:57 AM
To: Nagal, Amit UTC CCS
Cc: linux-kernel@vger.kernel.org; linux...@kvack.org; CHAWLA, RITU UTC CCS
Subject: [External] Re: linux kernel page allocation failure and tuning of
On 31/05/19 7:44 PM, Arnaldo Carvalho de Melo wrote:
> Em Mon, May 20, 2019 at 02:37:24PM +0300, Adrian Hunter escreveu:
>> Enhance the "All branches" and "Selected branches" reports to display IPC
>> information if it is available.
>
> So, testing this I noticed that it all starts with the left a
-Original Message-
From: Matthew Wilcox [mailto:wi...@infradead.org]
Sent: Saturday, June 1, 2019 1:01 AM
To: Nagal, Amit UTC CCS
Cc: linux-kernel@vger.kernel.org; linux...@kvack.org; CHAWLA, RITU UTC CCS
; net...@vger.kernel.org
Subject: [External] Re: linux kernel page allocation fa
The local variable references in shrink_page_list is PAGEREF_RECLAIM_CLEAN
as default. It is for preventing to reclaim dirty pages when CMA try to
migrate pages. Strictly speaking, we don't need it because CMA didn't allow
to write out by .may_writepage = 0 in reclaim_clean_pages_from_list.
Moreov
The isolate counting is pecpu counter so it would be not huge gain
to work them by batch. Rather than complicating to make them batch,
let's make it more stright-foward via adding the counting logic
into [isolate|putback]_lru_page API.
Link: http://lkml.kernel.org/r/20190531165927.ga20...@cmpxchg.
This patch is part of previous series:
https://lore.kernel.org/lkml/20190531064313.193437-1-minc...@kernel.org/T/#u
Originally, it was created for external madvise hinting feature.
https://lkml.org/lkml/2019/5/31/463
Michal wanted to separte the discussion from external hinting interface
so this p
When a process expects no accesses to a certain memory range, it could
give a hint to kernel that the pages can be reclaimed when memory pressure
happens but data should be preserved for future use. This could reduce
workingset eviction so it ends up increasing performance.
This patch introduces
When a process expects no accesses to a certain memory range
for a long time, it could hint kernel that the pages can be
reclaimed instantly but data should be preserved for future use.
This could reduce workingset eviction so it ends up increasing
performance.
This patch introduces the new MADV_P
Thanks Linus!
On Sat, 2019-06-01 at 01:06 +0200, Linus Walleij wrote:
> This driver does not use any symbols from
> so just drop the include.
>
> Cc: Matti Vaittinen
> Signed-off-by: Linus Walleij
Acked-By: Matti Vaittinen
Br,
Matti Vaittinen
And thanks for this too =)
On Sat, 2019-06-01 at 01:08 +0200, Linus Walleij wrote:
> This driver does not use any symbols from
> so just drop the include.
>
> Cc: Matti Vaittinen
> Signed-off-by: Linus Walleij
Acked-By: Matti Vaittinen
Br,
Matti Vaittinen
On Sun, Jun 02, 2019 at 08:47:07PM -0700, Paul E. McKenney wrote:
>
> 1.These guarantees are of full memory barriers, -not- compiler
> barriers.
What I'm saying is that wherever they are, they must come with
compiler barriers. I'm not aware of any synchronisation mechanism
in the kerne
On Sat, Jun 1, 2019 at 7:52 PM Ganapathi Bhat wrote:
>
> Hi syzbot,
>
> >
> > syzbot found the following crash on:
> >
> As per the
> link(https://syzkaller.appspot.com/bug?extid=dc4127f950da51639216), the issue
> is fixed; Is it OK? Let us know if we need to do something?
Hi Ganapathi,
The "f
Please pull to get these three bug fixes, and TLB flushing one is of
particular brown paper bag quality...
Thanks.
The following changes since commit f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a:
Linux 5.2-rc3 (2019-06-02 13:55:33 -0700)
are available in the Git repository at:
git://git.kern
From: Gen Zhang
Date: Fri, 31 May 2019 09:24:18 +0800
> In get_vdev_port_node_info(), 'node_info->vdev_port.name' is allcoated
> by kstrdup_const(), and it returns NULL when fails. So
> 'node_info->vdev_port.name' should be checked.
>
> Signed-off-by: Gen Zhang
Applied, thanks.
From: Young Xiao <92siuy...@gmail.com>
Date: Wed, 29 May 2019 10:21:48 +0800
> The PERF_EVENT_IOC_PERIOD ioctl command can be used to change the
> sample period of a running perf_event. Consequently, when calculating
> the next event period, the new period will only be considered after the
> previ
Hi Hou Zhiqiang
Two instances [@360 and @380] of the six has a different
window count, the RC can not have more than 8 windows.
apio-wins = <256>; //Can we change it to 8
ppio-wins = <24>;//Can we change it to 8
On Tue, May 28, 2019 at 12:20 PM Z.q. Hou wrote:
>
> From: Hou Zhiqia
On 03/06/2019 12:23, Shawn Anastasio wrote:
>
>
> On 5/30/19 10:56 PM, Alexey Kardashevskiy wrote:
>>
>>
>> On 31/05/2019 08:49, Shawn Anastasio wrote:
>>> On 5/29/19 10:39 PM, Alexey Kardashevskiy wrote:
On 28/05/2019 17:39, Shawn Anastasio wrote:
>
>
> On 5/28/19 1
Hi all,
Today's linux-next merge of the akpm-current tree got a conflict in:
include/linux/genalloc.h
between commit:
3334e1dc5d71 ("lib/genalloc: add gen_pool_dma_zalloc() for zeroed DMA
allocations")
from the dma-mapping tree and commit:
1c6b703cba18 ("lib/genalloc: introduce chunk o
On 05/31/2019 11:18 PM, Matthew Wilcox wrote:
> On Fri, May 31, 2019 at 02:17:43PM +0530, Anshuman Khandual wrote:
>> On 05/30/2019 07:09 PM, Matthew Wilcox wrote:
>>> On Thu, May 30, 2019 at 05:31:15PM +0530, Anshuman Khandual wrote:
On 05/30/2019 04:36 PM, Matthew Wilcox wrote:
> The
From: "liangyan.ply"
start_cfs_slack_bandwidth() will restart the quota slack timer,
if it is called frequently, this timer will be restarted continuously
and may have no chance to expire to unthrottle cfs tasks.
This will cause that the throttled tasks can't be unthrottled in time
although they
Hi Alan,
On 31/05/19 11:46 PM, Alan Mikhak wrote:
> On Thu, May 30, 2019 at 10:08 PM Kishon Vijay Abraham I wrote:
>> Hi Alan,
>>>
>>> Hi Kishon,
>>>
>>> I have some improvements in mind for a v2 patch in response to
>>> feedback from Gustavo Pimentel that the current implementation is HW
>>> spe
Hi Kishon,
On 03-06-19, 09:54, Kishon Vijay Abraham I wrote:
> right. For the endpoint case, drivers/pci/controller should register with the
> dmaengine i.e if the controller has aN embedded DMA (I think it should be okay
> to keep that in drivers/pci/controller itself instead of drivers/dma) and
When "deep" suspend is enabled, all CPUs except the primary CPU
are hotplugged out. Since CPU hotplug is a costly operation,
check if we have to abort the suspend in between each CPU
hotplug. This would improve the system suspend abort latency
upon detecting a wakeup condition.
Signed-off-by: Pava
Hi,
On 31/05/19 1:19 PM, Arnd Bergmann wrote:
> On Fri, May 31, 2019 at 8:32 AM Vinod Koul wrote:
>> On 31-05-19, 10:50, Kishon Vijay Abraham I wrote:
>>> On 31/05/19 10:37 AM, Vinod Koul wrote:
On 30-05-19, 11:16, Kishon Vijay Abraham I wrote:
>
> right, my initial thought process w
In order to support object migration on the dentry cache we need to have
a determined object state at all times. Without a constructor the object
would have a random state after allocation.
Provide a dentry constructor.
Signed-off-by: Tobin C. Harding
---
fs/dcache.c | 30 +-
We have just implemented Slab Movable Objects (SMO, object migration).
Currently object migration is used to defrag a cache. On NUMA systems
it would be nice to be able to control the source and destination nodes
when moving objects.
Add CONFIG_SLUB_SMO_NODE to guard this feature. CONFIG_SLUB_SM
We have just implemented Slab Movable Objects (SMO). On NUMA systems
slabs can become unbalanced i.e. many slabs on one node while other
nodes have few slabs. Using SMO we can balance the slabs across all
the nodes.
The algorithm used is as follows:
1. Move all objects to node 0 (this has the
Recently Slab Movable Objects (SMO) was implemented for the SLUB
allocator. The XArray can take advantage of this and make the xa_node
slab cache objects movable.
Implement functions to migrate objects and activate SMO when we
initialise the XArray slab cache.
This is based on initial code by Ma
We just implemented slab movable objects for the SLUB allocator. We
should test that code. In order to do so we need to be able to do a
number of things
- Create a cache
- Enable Slab Movable Objects for the cache
- Allocate objects to the cache
- Free objects from within specific slabs of t
Earlier, Slab Movable Objects (SMO) was implemented. The XArray is now
able to take advantage of SMO in order to make xarray nodes
movable (when using the SLUB allocator).
Currently the radix tree uses the same slab cache as the XArray. Only
XArray nodes are movable _not_ radix tree nodes. We c
The dentry slab cache is susceptible to internal fragmentation. Now
that we have Slab Movable Objects we can attempt to defragment the
dcache. Dentry objects are inherently _not_ relocatable however under
some conditions they can be free'd. This is the same as shrinking the
dcache but instead of
We just implemented movable objects for the XArray. Let's test it
intree.
Add test module for the XArray's movable objects implementation.
Functionality of the XArray Slab Movable Object implementation can
usually be seen by simply by using `slabinfo` on a running machine since
the radix tree is
We just added a module that enables testing the SLUB allocators ability
to defrag/shrink caches via movable objects. Tests are better when they
are automated.
Add automated testing via a python script for SLUB movable objects.
Example output:
$ cd path/to/linux/tools/testing/slab
$ /slub_de
Add output for the newly added defrag_used_ratio sysfs knob.
Signed-off-by: Tobin C. Harding
---
tools/vm/slabinfo.c | 4
1 file changed, 4 insertions(+)
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index d2c22f9ee2d8..ef4ff93df4cc 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/
Add output line for NUMA remote node defrag ratio.
Signed-off-by: Tobin C. Harding
---
tools/vm/slabinfo.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index cbfc56c44c2f..d2c22f9ee2d8 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinf
Add the two methods needed for moving objects and enable the display of
the callbacks via the /sys/kernel/slab interface.
Add documentation explaining the use of these methods and the prototypes
for slab.h. Add functions to setup the callbacks method for a slab
cache.
Add empty functions for SLAB
-C lists caches that use a ctor.
-M lists caches that support object migration.
Add command line options to show caches with a constructor and caches
that are movable (i.e. have migrate function).
Signed-off-by: Tobin C. Harding
---
tools/vm/slabinfo.c | 40
It is advantageous to have all defragmentable slabs together at the
beginning of the list of slabs so that there is no need to scan the
complete list. Put defragmentable caches first when adding a slab cache
and others last.
Signed-off-by: Tobin C. Harding
---
mm/slab_common.c | 2 +-
mm/slub.c
Internal fragmentation can occur within pages used by the slub
allocator. Under some workloads large numbers of pages can be used by
partial slab pages. This under-utilisation is bad simply because it
wastes memory but also because if the system is under memory pressure
higher order allocations m
Hi,
TL;DR - Add object migration (SMO) to the SLUB allocator and implement
object migration for the XArray and the dcache.
Thanks for you patience with all the RFC's of this patch set. Here it
is, ready for prime time.
Internal fragmentation can occur within pages used by the slub
allocator.
On Wed, May 29, 2019 at 04:16:51PM +, Roman Gushchin wrote:
> On Wed, May 29, 2019 at 01:54:06PM +1000, Tobin C. Harding wrote:
> > On Tue, May 21, 2019 at 02:05:38AM +, Roman Gushchin wrote:
> > > On Tue, May 21, 2019 at 11:31:18AM +1000, Tobin C. Harding wrote:
> > > > On Tue, May 21, 201
Hi Vinod,
On 31/05/19 12:02 PM, Vinod Koul wrote:
> On 31-05-19, 10:50, Kishon Vijay Abraham I wrote:
>> Hi Vinod,
>>
>> On 31/05/19 10:37 AM, Vinod Koul wrote:
>>> Hi Kishon,
>>>
>>> On 30-05-19, 11:16, Kishon Vijay Abraham I wrote:
+Vinod Koul
Hi,
On 30/05/19 4:07 AM, Al
On 2019/5/31 22:37, Tejun Heo wrote:
> On Fri, May 31, 2019 at 04:29:12PM +0800, Gao Xiang wrote:
>> non-inline io_schedule() was introduced in
>> commit 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and
>> io_schedule_finish()")
>> Keep in line with io_schedule_timeout, Otherwi
On Fri, May 31, 2019 at 5:03 PM Michal Hocko wrote:
>
> On Thu 30-05-19 20:55:32, Pingfan Liu wrote:
> > On Wed, May 29, 2019 at 2:20 AM Michal Hocko wrote:
> > >
> > > [Sorry for a late reply]
> > >
> > > On Thu 23-05-19 11:58:45, Pingfan Liu wrote:
> > > > On Wed, May 22, 2019 at 7:16 PM Michal
On Mon, Jun 03, 2019 at 12:01:14PM +0800, Herbert Xu wrote:
> On Sun, Jun 02, 2019 at 08:47:07PM -0700, Paul E. McKenney wrote:
> >
> > CPU2: if (b != 1)
> > CPU2: b = 1;
>
> Stop right there. The kernel is full of code that assumes that
> assignment to an int/long
On Sat, Jun 1, 2019 at 1:06 AM John Hubbard wrote:
>
> On 5/31/19 4:05 AM, Pingfan Liu wrote:
> > On Fri, May 31, 2019 at 7:21 AM John Hubbard wrote:
> >> On 5/30/19 2:47 PM, Ira Weiny wrote:
> >>> On Thu, May 30, 2019 at 06:54:04AM +0800, Pingfan Liu wrote:
> >> [...]
> >> Rather lightly tested.
On Sat, Jun 1, 2019 at 1:12 AM Ira Weiny wrote:
>
> On Fri, May 31, 2019 at 07:05:27PM +0800, Pingfan Liu wrote:
> > On Fri, May 31, 2019 at 7:21 AM John Hubbard wrote:
> > >
> > >
> > > Rather lightly tested...I've compile-tested with CONFIG_CMA and
> > > !CONFIG_CMA,
> > > and boot tested with
On Sun, Jun 02, 2019 at 08:47:07PM -0700, Paul E. McKenney wrote:
>
> CPU2: if (b != 1)
> CPU2: b = 1;
Stop right there. The kernel is full of code that assumes that
assignment to an int/long is atomic. If your compiler breaks this
assumption that we can kiss
Document MediaTek I3C master DT bindings.
Signed-off-by: Qii Wang
---
.../devicetree/bindings/i3c/mtk,i3c-master.txt | 50
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i3c/mtk,i3c-master.txt
diff --git a/Documentation/devicetr
Add a driver for MediaTek I3C master IP.
Signed-off-by: Qii Wang
---
drivers/i3c/master/Kconfig | 10 +
drivers/i3c/master/Makefile |1 +
drivers/i3c/master/i3c-master-mtk.c | 1246 +++
3 files changed, 1257 insertions(+)
create mode 100644
This series are based on 5.2-rc1, we provide two patches to
support MediaTek I3C master controller.
Qii Wang (2):
dt-bindings: i3c: Document MediaTek I3C master bindings
i3c: master: Add driver for MediaTek IP
.../devicetree/bindings/i3c/mtk,i3c-master.txt | 50 +
drivers/i3c/master/Kc
On Mon, Jun 03, 2019 at 10:46:40AM +0800, Herbert Xu wrote:
> On Sun, Jun 02, 2019 at 01:54:12PM -0700, Linus Torvalds wrote:
> > On Sat, Jun 1, 2019 at 10:56 PM Herbert Xu
> > wrote:
> > >
> > > You can't then go and decide to remove the compiler barrier! To do
> > > that you'd need to audit ev
Add a simple rpmsg support for mt8183 SCP, that use IPI / IPC directly.
Signed-off-by: Pi-Hsun Shih
---
Changes from v9, v8, v7:
- No change.
Changes from v6:
- Decouple mtk_rpmsg from mtk_scp by putting all necessary informations
(name service IPI id, register/unregister/send functions) in
System Companion Processor (SCP) is Cortex M4 co-processor on some
MediaTek platform that can run EC-style firmware. Since a SCP and EC
would both exist on a system, and use the cros_ec_dev driver, we need to
differentiate between them for the userspace, or they would both be
registered at /dev/cro
From: Eddie Huang
Add scp node to mt8183 and mt8183-evb
Signed-off-by: Erin Lo
Signed-off-by: Pi-Hsun Shih
Signed-off-by: Eddie Huang
---
Changes from v9:
- Remove extra reserve-memory-vpu_share node.
Changes from v8:
- New patch.
---
arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 +
From: Erin Lo
Add memory table mapping API for other driver to lookup
reserved physical and virtual memory
Signed-off-by: Erin Lo
Signed-off-by: Pi-Hsun Shih
---
Changes from v9:
- No change.
Changes from v8:
- Add more reserved regions for camera ISP.
Changes from v7, v6, v5:
- No change
Add a DT binding documentation for ChromeOS EC driver over rpmsg.
Signed-off-by: Pi-Hsun Shih
Acked-by: Rob Herring
---
Changes from v9, v8, v7, v6:
- No change.
Changes from v5:
- New patch.
---
Documentation/devicetree/bindings/mfd/cros-ec.txt | 5 -
1 file changed, 4 insertions(+), 1
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