On Thu 14-04-16 13:50:55, Johannes Weiner wrote:
> On Wed, Apr 13, 2016 at 09:23:14PM +0200, Michal Hocko wrote:
> > I think we can live without lru_add_drain_all() in the migration path.
>
> Agreed. Michal, would you care to send a patch to remove it?
Now that I am looking closer I am not sure t
This outer cache allows to control active ways independently for
each CPU, but currently nothing is done for secondary CPUs. In
other words, all the ways are locked for secondary CPUs by default.
This commit fixes it to fully bring out the performance of this
outer cache.
There would be two possi
[+Luca]
Hi,
On 14/04/16 20:19, Xunlei Pang wrote:
> I got a minus(very big) dl_b->total_bw during my deadline tests.
>
> # grep dl /proc/sched_debug
> dl_rq[0]:
> .dl_nr_running : 0
> .dl_bw->bw : 996147
> .dl_bw->total_bw : -
On Fri, Apr 15, 2016 at 02:08:43PM +0800, Jisheng Zhang wrote:
> Dear Mika,
>
> On Thu, 14 Apr 2016 17:39:16 +0300 Mika Westerberg wrote:
>
> > On Thu, Apr 14, 2016 at 10:04:56PM +0800, Jisheng Zhang wrote:
> > > Implement bus recovery methods for i2c designware so we can recover
> > > from situa
On Donnerstag, 14. April 2016 19:40:42 CEST Dan Williams wrote:
> Report the reason for btt probe failures when debug is enabled.
>
> Signed-off-by: Dan Williams
Looks good to me,
Reviewed-by: Johannes Thumshirn
--
Johannes Thumshirn
-event_trigger_ops-func-for-instances/20160415-145801
config: i386-randconfig-x000-201615 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
Note: the
linux-review/Howard-Cochran/tracing-Add-param-to-event_trigger_ops-func-for-instances
On Donnerstag, 14. April 2016 19:40:47 CEST Dan Williams wrote:
> The ACPI specification does not specify the state of data after a clear
> poison operation. Potential future libnvdimm bus implementations for
> other architectures also might not specify or disagree on the state of
> data after cle
On 04/15/2016 05:09 AM, Clark Williams wrote:
> Sebastian,
Hi Clark,
> This patch removes the raw spinlock operations when updating cputtime
> in the vtime_* functions in kernel/sched/cputime.c.
>
> Based on Frederic's commit b7ce2277f087fd052, there is no need for
> the raw spinlocks in vtime_*
Move constants to the right of binary operators.
Generated by: scripts/coccinelle/misc/compare_const_fl.cocci
Signed-off-by: Fengguang Wu
Signed-off-by: Julia Lawall
---
Could be nice to put the thing being tested first.
amdgpu_grph_object_id_helpers.c |4 ++--
1 file changed, 2 insertio
On Mittwoch, 13. April 2016 00:01:40 CEST Tina Ruchandani wrote:
> 'struct timeval' will have its tv_sec value overflow on 32-bit systems
> in year 2038 and beyond. This patch replaces the use of struct timeval
> for computing mpi_request.TimeStamp, and instead uses ktime_t which provides
> 64-bit
The UCS1002-2 provides a USB port power switch for precise control of up
to 2.5 amperes continuous current.
You can add support to your board with current binding.
Example:
ucs1002: ucs1002@57 {
compatible = "microchip,ucs1002";
reg = <0x57>;
};
Signed-off-by:
Dear all,
This is the fourth version of the UCS1002 driver, a Programmable USB Port
Power Controller with Charger Emulation.
Any comments are welcome. Thanks in advance.
Enric Balletbo i Serra (2):
devicetree: Add UCS1002 USB Port Power Controller binding
power: ucs1002: Add support for Prog
The UCS1002-2 provides a USB port power switch for precise control of up
to 2.5 amperes continuous current with over-current limit (OCL), dynamic
thermal management, latch or auto-recovery (low test current) fault
handling, selectable active low or high enable, under- and over-voltage
lockout, back
* Kees Cook wrote:
> From: Yinghai Lu
>
> Since the boot_params can be found using the real_mode global variable, there
> is
> no need to pass around a pointer to it. This slightly simplifies the
> choose_kernel_location function and its callers.
Yeah, so I really wanted to apply this seri
David,
Am Donnerstag, 14. April 2016, 20:48:48 schrieb Wolfram Sang:
> > + - input-clk-rate : frequency rate of function clock used(in Hz). If
> > omitted, + the default clock rate is used. It is just used at rk3399 soc.
>
> Why is this needed? Why don't we simply use the default or calculate th
On Fri, Apr 15, 2016 at 03:30:15PM +0930, Jonathan Woithe wrote:
> Hi Darren
>
> On Thu, Apr 14, 2016 at 10:44:52PM -0700, Darren Hart wrote:
> > On Fri, Apr 15, 2016 at 03:03:33PM +0930, Jonathan Woithe wrote:
> > > > I've made a couple cosmetic changes and queued to for-next. Please
> > > > rev
On Fri, 15 Apr 2016 10:07:46 +0300
Mika Westerberg wrote:
> On Fri, Apr 15, 2016 at 02:08:43PM +0800, Jisheng Zhang wrote:
> > Dear Mika,
> >
> > On Thu, 14 Apr 2016 17:39:16 +0300 Mika Westerberg wrote:
> >
> > > On Thu, Apr 14, 2016 at 10:04:56PM +0800, Jisheng Zhang wrote:
> > > > Implem
On Tue, Apr 12, 2016 at 8:46 AM, Mika Westerberg
wrote:
> On Mon, Apr 11, 2016 at 08:43:22PM +0800, Jiang Qiu wrote:
>> > Currently it just complains if something goes wrong. The GPIO driver
>> > itself can still work just fine (including interrupts).
>> >
>> > I'm fine to change it to return an e
Bob, Rafael, any comments about this?
This seems to solve a real issue with Thunderbolt hotplug on Dell XPS
laptops. I do not know ACPICA that well to tell if this is 100% correct
fix but many reporters say it fixes the problem they are facing:
https://bugzilla.kernel.org/show_bug.cgi?id=115121
On Thu 14-04-16 12:56:28, David Rientjes wrote:
> On Mon, 11 Apr 2016, Michal Hocko wrote:
>
> > From: Michal Hocko
> >
> > __GFP_REPEAT has a rather weak semantic but since it has been introduced
> > around 2.6.12 it has been ignored for low order allocations. Yet we have
> > the full kernel tr
On Tue, Apr 12, 2016 at 5:26 PM, Thierry Reding
wrote:
> Does this matter at all? We use the explicit notation in quite a number
> of places and it works great. I'd like to avoid needless churn unless
> there is a very good reason to switch.
I am softly enforcing in the GPIO subsystem
because I
* Kees Cook wrote:
> From: Baoquan He
>
> When processing the relocation table, the offset used to calculate the
> relocation is an int. This is sufficient for calculating the physical
> address of the relocs entry on 32-bit systems and on 64-bit systems when
> the relocation is under 2G. To h
On Thu, Apr 14, 2016 at 06:29:36PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> If userspace is running an synchronously atomic commit and interrupts the
> atomic operation during fence_wait() it will hang until the timer expires,
> so here we change the wait to be interruptible so i
From: Zhaoxiu Zeng
blackfin has popcount instruction (ONES), we can do the efficient
computing (ffz, __ffs, ffs, __fls, and fls) use this instruction.
Adapted from "https://en.wikipedia.org/wiki/Find_first_set"; and
arch/ia64/include/asm/bitops.h.
Signed-off-by: Zhaoxiu Zeng
---
arch/blackfin
On Tue, Apr 12, 2016 at 4:56 PM, Laxman Dewangan wrote:
> NVIDIA Tegra210 supports some of the IO interface which can operate
> at 1.8V or 3.3V I/O rail voltage levels. SW needs to configure
> Tegra PMC register to set different voltage level of IO interface based
> on IO rail voltage from power
On Thu, Apr 14, 2016 at 06:29:35PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> Creates a function that given an sync file descriptor returns a
> fence_collection containing all fences in the sync_file.
>
> If there is only one fence in the sync_file this fence itself is returned,
>
在 2016/4/15 15:40, Linus Walleij 写道:
> On Tue, Apr 12, 2016 at 8:46 AM, Mika Westerberg
> wrote:
>> On Mon, Apr 11, 2016 at 08:43:22PM +0800, Jiang Qiu wrote:
Currently it just complains if something goes wrong. The GPIO driver
itself can still work just fine (including interrupts).
On Fri, Apr 15, 2016 at 09:54:34AM +0200, Linus Walleij wrote:
> On Tue, Apr 12, 2016 at 4:56 PM, Laxman Dewangan wrote:
> > NVIDIA Tegra210 supports some of the IO interface which can operate
> > at 1.8V or 3.3V I/O rail voltage levels. SW needs to configure
> > Tegra PMC register to set differe
+Srinivas
On Sun, Jan 31, 2016 at 04:33:00PM +0100, Jean-Michel Hautbois wrote:
> Some I2C devices have multiple addresses assigned, for example each address
> corresponding to a different internal register map page of the device.
> So far drivers which need support for this have handled this with
On Thu, Apr 14, 2016 at 06:29:34PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> struct fence_collection inherits from struct fence and carries a
> collection of fences that needs to be waited together.
>
> It is useful to translate a sync_file to a fence to remove the complexity
> o
On 15/04/2016 03:20, Martin K. Petersen wrote:
"John" == John Garry writes:
John> This patchset introduces SATA support fixes for the HiSilicon v2
John> hw SAS controller.
John> Fixes include: - attach issue for SATA disk attached through
John> expander - intermittent issue for directly attac
On Thu, Apr 14, 2016 at 06:29:37PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> There is now a new property called FENCE_FD attached to every plane
> state that receives the sync_file fd from userspace via the atomic commit
> IOCTL.
>
> The fd is then translated to a fence (that may
* Kees Cook wrote:
> From: Baoquan He
>
> Currently CONFIG_RANDOMIZE_BASE_MAX_OFFSET is used to limit the maximum
> offset for kernel randomization. This limit doesn't need to be a CONFIG
> since it is tied completely to KERNEL_IMAGE_SIZE, and will make no sense
> once physical and virtual off
On Tue, Apr 12, 2016 at 4:56 PM, Laxman Dewangan wrote:
> NVIDIA Tegra210 supports the IO pads which can operate at 1.8V
> or 3.3V I/O voltage levels. Also the IO pads can be configured
> for power down state if it is not used. SW needs to configure the
> voltage level of IO pads based on IO rail
On Thu, Apr 14, 2016 at 06:29:38PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> Now a drm_pending_event can either send a real drm_event or signal a
> fence, or both. It allow us to signal via fences when the buffer is
> displayed on the screen. Which in turn means that the previous
* Kees Cook wrote:
> From: Yinghai Lu
>
> This change makes later calculations about where the kernel is located
> easier to reason about. To better understand this change, we must first
> clarify what VO and ZO are. They were introduced in commits by hpa:
>
> 77d1a49 x86, boot: make symbols
On Thu, Apr 14, 2016 at 06:29:37PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> There is now a new property called FENCE_FD attached to every plane
> state that receives the sync_file fd from userspace via the atomic commit
> IOCTL.
>
> The fd is then translated to a fence (that may
* Kees Cook wrote:
> From: Yinghai Lu
>
> Currently z_extract_offset is calculated in boot/compressed/mkpiggy.c.
What is the high level meaning of z_extract_offset? I cannot tell without
reading
the code - and the point of changelogs is for them to be readable without
having
to read the c
On 2016/04/15 at 15:07, Juri Lelli wrote:
> [+Luca]
>
> Hi,
>
> On 14/04/16 20:19, Xunlei Pang wrote:
>> I got a minus(very big) dl_b->total_bw during my deadline tests.
>>
>> # grep dl /proc/sched_debug
>> dl_rq[0]:
>> .dl_nr_running : 0
>> .dl_bw->bw
On 04/14/2016 09:17 PM, Boris Brezillon wrote:
> Call pwm_apply_args() just after requesting the PWM device so that the
> polarity and period are initialized according to the information provided
> in pwm_args.
>
> This is an intermediate state, and pwm_apply_args() should be dropped as
> soon as
On Thu, Apr 14, 2016 at 12:21:13PM -0400, Waiman Long wrote:
> On 04/13/2016 11:16 PM, Dave Chinner wrote:
> >On Tue, Apr 12, 2016 at 02:12:54PM -0400, Waiman Long wrote:
> >>When performing direct I/O, the current ext4 code does
> >>not pass in the DIO_SKIP_DIO_COUNT flag to dax_do_io() or
> >>__b
On Thu, Apr 14, 2016 at 06:29:41PM -0700, Gustavo Padovan wrote:
> From: Gustavo Padovan
>
> Support DRM out-fences creating a sync_file with a fence for each crtc
> update with the DRM_MODE_ATOMIC_OUT_FENCE flag.
>
> We then send an struct drm_out_fences array with the out-fences fds back in
>
On Wed, Apr 13, 2016 at 2:15 AM, Ray Jui wrote:
> The iProc GPIO controller is shared among multiple iProc based SoCs. In
> some of these SoCs, certain PINCONF functions are disabled and registers
> associated with these functions are reserved. This patch adds support to
> the iProc GPIO/PINCOF d
From: Daniel Wagner
complete_all() should only be called once, doing it twice is a clear bug.
8565adbc8214 ("drivers/misc/ti-st: fix read fw version cmd") added the
additional complete_all() call. Since we call complete_all() when
leaving the function we can drop the complete_all() call inside
t
From: Zhaoxiu Zeng
blackfin has popcount instruction (ONES), we can do the efficient
computing (ffz, __ffs, ffs, __fls, and fls) use this instruction.
Adapted from "https://en.wikipedia.org/wiki/Find_first_set"; and
arch/ia64/include/asm/bitops.h.
Changes to V1:
- Use hweight32 instead __arch_h
On Wed, Apr 13, 2016 at 2:15 AM, Ray Jui wrote:
> In some of the future iProc based SoCs, pinconf is handled by another
> block and the iProc GPIO controller is solely used as a GPIO controller.
> This patch adds support of a new compatible string "brcm,iproc-gpio-only",
> that is introduced to h
Commit 595207b93fe4 ("powerpc/86xx: Update device tree") removes
wrongly #interrupt-cells from pcie nodes. Fix it letting these
come back to the right place.
Signed-off-by: Alessio Igor Bogani
---
arch/powerpc/boot/dts/fsl/gef_sbc310.dts | 1 +
arch/powerpc/boot/dts/fsl/mpc8641_hpcn.dts
Hi,
On 6 April 2016 at 15:45, Alessio Igor Bogani wrote:
> The commit dc37374 move a lot of device tree files into fsl directory
> fixing Makefile for cuImage target only. Unfortunately there are others
> target which require to embebbed device tree into the kernel image
> (i.e. dtbImage.%). So u
On Thu, 14 Apr 2016, Jessica Yu wrote:
> +++ Miroslav Benes [14/04/16 15:28 +0200]:
> > On Wed, 13 Apr 2016, Jessica Yu wrote:
>
> > > A second concern I have is that apply_relocate_add() relies on
> > > sections like .stubs and .toc (for 64-bit) and .init.plt and .plt
> > > sections (for 32-bit)
On Wed, 13 Apr 2016, Thierry Reding wrote:
> On Wed, Apr 13, 2016 at 11:25:54AM +0100, Lee Jones wrote:
> > On Tue, 12 Apr 2016, Thierry Reding wrote:
> >
> > > On Wed, Mar 02, 2016 at 03:32:07PM +, Lee Jones wrote:
> > > > Once a PWM Capture has been initiated, the capture call
> > > > enabl
On Sat, Apr 2, 2016 at 8:57 AM, Yingjoe Chen wrote:
> The debounce time unit for gpio_chip.set_debounce is us but
> mtk_gpio_set_debounce regard it as ms.
> Fix this by correct debounce time array dbnc_arr so it can find correct
> debounce setting. Debounce time for first debounce setting is 500u
* Kees Cook wrote:
> From: Yinghai Lu
>
> Currently, the kernel run_size (size of code plus brk and bss) is
> calculated via the shell script arch/x86/tools/calc_run_size.sh.
> It gets the file offset and mem size of for the .bss and .brk sections in
> vmlinux, and adds them as follows:
'of
MT6397/MT6323 have one interrupt line connected to the main SoC.
Interrupt should be required feature of pmic, each sub module also
need it to complete their function or error detect, add it as
required properties on dts file.
Signed-off-by: Henry Chen
---
Documentation/devicetree/bindings/mfd/m
Some sub driver like RTC module need irq domain from parent to create
irq mapping when driver initialize. so move mt6397_irq_init() before
mfd_add_devices().
Acked-by: John Crispin
Signed-off-by: Henry Chen
---
This series fixed the below warning based on "Linux kernel v4.6-rc1"
WARNING: CPU: 1
On Tue, Apr 12, 2016 at 12:52 PM, Grygorii Strashko
wrote:
> Now GPIO IRQ loss is observed on dra7-evm after suspend/resume cycle
(...)
> Cc: Roger Quadros
> Signed-off-by: Grygorii Strashko
Can I get some explicit ACK / Tested-by tags for this patch?
Is it a serious regression that will need
On Friday 15 April 2016 01:30 PM, Mark Brown wrote:
* PGP Signed by an unknown key
On Fri, Apr 15, 2016 at 09:54:34AM +0200, Linus Walleij wrote:
On Tue, Apr 12, 2016 at 4:56 PM, Laxman Dewangan wrote:
NVIDIA Tegra210 supports some of the IO interface which can operate
at 1.8V or 3.3V I/O ra
On 04/15/2016 08:32 AM, Chanwoo Choi wrote:
> This patch adds NoC (Network on Chip) Probe driver which provides
> the primitive values to get the performance data. The packets that the Network
> on Chip (NoC) probes detects are transported over the network infrastructure.
> Exynos542x bus has multi
On Fri, 15 Apr 2016, Xiong Zhou wrote:
> Hi, all
>
> Since tag next-20160407 in linux-next repo, executing binary
> from/in DAX mount hangs.
>
> It does not hang if mount without dax option.
> It hangs with both xfs and ext4.
> It does not hang if execute from a -t tmpfs mount.
> It does not han
On Thu 14-04-16 13:15:51, Hugh Dickins wrote:
> On Tue, 12 Apr 2016, Michal Hocko wrote:
[...]
> > @@ -938,7 +938,7 @@ static int __unmap_and_move(struct page *page, struct
> > page *newpage,
> > * the retry loop is too short and in the sync-light case,
> > * the overhead
Am 15.04.2016 um 09:15 schrieb Julia Lawall:
Move constants to the right of binary operators.
Generated by: scripts/coccinelle/misc/compare_const_fl.cocci
Signed-off-by: Fengguang Wu
Signed-off-by: Julia Lawall
In general the patch looks ok, but do we have a documented preference
where to
On Friday 15 April 2016 01:38 PM, Linus Walleij wrote:
On Tue, Apr 12, 2016 at 4:56 PM, Laxman Dewangan wrote:
NVIDIA Tegra210 supports the IO pads which can operate at 1.8V
or 3.3V I/O voltage levels. Also the IO pads can be configured
for power down state if it is not used. SW needs to conf
Added the driver for zynqmp dma engine used in Zynq
UltraScale+ MPSoC. This dma controller supports memory to memory and
memory to I/O buffer transfers.
Signed-off-by: Punnaiah Choudary Kalluri
Signed-off-by: Kedareswara rao Appana
---
Changes in v6:
- Removed unnecessary axcache properties from
Hi Rob,
Thanks for the review...
> -Original Message-
> From: Rob Herring [mailto:r...@kernel.org]
> Sent: Thursday, April 14, 2016 8:34 PM
> To: Appana Durga Kedareswara Rao
> Cc: pawel.m...@arm.com; mark.rutl...@arm.com;
> ijc+devicet...@hellion.org.uk; ga...@codeaurora.org; Mi
On 14/04/16 20:25, Greg KH wrote:
On Thu, Apr 14, 2016 at 09:47:57AM +0100, Vladimir Murzin wrote:
Hi,
On 01/04/16 15:02, Vladimir Murzin wrote:
Hi,
This patch series provides the basic support for running ucLinux on V2M-MPS2
platform.
With these patches applied ucLinux can be run on both
Device-tree binding documentation for Xilinx zynqmp dma engine used in
Zynq UltraScale+ MPSoC.
Signed-off-by: Punnaiah Choudary Kalluri
Signed-off-by: Kedareswara rao Appana
---
Changes in v6:
- Removed desc-axi-cache/dst-axi-cache/src-axi-cache properties
from the binding doc as it allow brok
On 14/04/16 16:39, Brian Starkey wrote:
The VExpress development platform has an external expansion bus which
can be used for additional hardware (e.g. LogicTile Express
daughterboards).
Add this bus to the VExpress CoreTile device-trees.
The bus is described for a CoreTile occupying site 1.
order-0 pages by definition cannot be compound so avoid the check in the
fast path for those pages.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 59de90d5d3a3..5
The PageAnon check always checks for compound_head but this is a relatively
expensive check if the caller already knows the page is a head page. This
patch creates a helper and uses it in the page free path which only operates
on head pages.
With this patch and "Only check PageCompound for high-or
There were no further responses to the last series but I kept going and
added a few more small bits. Most are basic micro-optimisations. The last
two patches weaken debugging checks to improve performance at the cost of
delayed detection of some use-after-free and memory corruption bugs. If
they m
The page allocator iterates through a zonelist for zones that match
the addressing limitations and nodemask of the caller but many allocations
will not be restricted. Despite this, there is always functional call
overhead which builds up.
This patch inlines the optimistic basic case and only calls
zone_statistics has one call-site but it's a public function. Make
it static and inline.
The performance difference on a page allocator microbenchmark is;
4.6.0-rc2 4.6.0-rc2
statbranch-v1r20
zone_statistics has more branches than it really needs to take an
unlikely GFP flag into account. Reduce the number and annotate
the unlikely flag.
The performance difference on a page allocator microbenchmark is;
4.6.0-rc2 4.6.0-rc2
__dec_zone_state is cheaper to use for removing an order-0 page as it
has fewer conditions to check.
The performance difference on a page allocator microbenchmark is;
4.6.0-rc2 4.6.0-rc2
optiter-v1r
Pageblocks have an associated bitmap to store migrate types and whether
the pageblock should be skipped during compaction. The bitmap may be
associated with a memory section or a zone but the zone is looked up
unconditionally. The compiler should optimise this away automatically so
this is a cosmet
See subject.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 313db1c43839..f5ddb342c967 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2674,7 +2674,6 @@ get_page_from_freelist(gfp_t
Hi Ulf,
No interest in this clean-up?
2016-02-09 20:43 GMT+09:00 Masahiro Yamada :
> No reason to use the double "if" nesting. This fix allows to move
> the nested block to the left and tidy up the error message without
> 80-col overflow.
>
> Signed-off-by: Masahiro Yamada
> ---
>
> drivers/m
zonelist here is a copy of a struct field that is used once. Ditch it.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e778485a64c1..313db1c43839 100644
--- a/mm/page_alloc.c
+++ b/mm/page
The number of zones skipped to a zone expiring its fair zone allocation quota
is irrelevant. Convert to bool.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4bce6298dd07..e778485a64c1
alloc_flags is a bitmask of flags but it is signed which does not
necessarily generate the best code depending on the compiler. Even
without an impact, it makes more sense that this be unsigned.
Signed-off-by: Mel Gorman
---
include/linux/compaction.h | 6 +++---
include/linux/mmzone.h | 3
Am 15.04.2016 um 10:02 schrieb Daniel Vetter:
On Thu, Apr 14, 2016 at 06:29:34PM -0700, Gustavo Padovan wrote:
From: Gustavo Padovan
struct fence_collection inherits from struct fence and carries a
collection of fences that needs to be waited together.
It is useful to translate a sync_file to
On 04/15/2016 01:58 AM, Andy Lutomirski wrote:
On Thu, Apr 14, 2016 at 9:32 AM, Dmitry Safonov wrote:
Add possibility for userspace 32-bit applications to move
vdso mapping. Previously, when userspace app called
mremap for vdso, in return path it would land on previous
address of vdso page, res
* Kees Cook wrote:
> When INIT_SIZE is bigger than VO_INIT_SIZE (uncommon but possible),
> the copied ZO occupies the memory from extract_offset to the end of
> decompression buffer. It overlaps with the soon-to-be-uncompressed kernel
> like this:
>
> |-compresse
On 04/15/2016 08:32 AM, Chanwoo Choi wrote:
> This patch adds the NoCP (Network on Chip Probe) Device Tree node
> to measure the bandwidth of memory and g3d in Exynos542x SoC.
>
> Signed-off-by: Chanwoo Choi
> Tested-by: Markus Reichl
> Tested-by: Anand Moon
> ---
> arch/arm/boot/dts/exynos542
On 04/15/2016 08:32 AM, Chanwoo Choi wrote:
> This patch adds the clock id for ACLK clock which is source clock of AMBA AXI
> Bus. This clock should be handled in Bus frequency scaling driver.
>
> Cc: Sylwester Nawrocki
> Cc: Tomasz Figa
> Signed-off-by: Chanwoo Choi
> Tested-by: Markus Reichl
On 04/15/2016 08:32 AM, Chanwoo Choi wrote:
> This patch adds the bus device tree nodes for INT (Internal) block
> to enable the AMBA bus frequency scaling and add the NoC (Network on Chip)
> Probe Device Tree node to measure the bandwidht for AMBA AXI bus.
>
> The WCORE bus bus is parent device i
There is a debugging check for callers that specify __GFP_DIRECT_RECLAIM
from a context that cannot sleep. Triggering this is almost certainly
a bug but it's also overhead in the fast path. Move the check to the slow
path. It'll be harder to trigger as it'll only be checked when watermarks
are depl
The current reset unnecessarily clears flags and makes pointless calculations.
Signed-off-by: Mel Gorman
---
include/linux/mm.h | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ffcff53e3b2b..60656db00abd 100644
--- a/include/li
__GFP_HARDWALL only has meaning in the context of cpusets but the fast path
always applies the flag on the first attempt. Move the manipulations into
the cpuset paths where they will be masked by a static branch in the common
case.
With the other micro-optimisations in this series combined, the im
A check is made for an empty zonelist early in the page allocator fast path
but it's unnecessary. When get_page_from_freelist() is called, it'll return
NULL immediately. Removing the first check is slower for machines with
memoryless nodes but that is a corner case that can live with the overhead.
Watermarks have to be checked on every allocation including the number of
pages being allocated and whether reserves can be accessed. The reserves
only matter if memory is limited and the free_pages adjustment only applies
to high-order pages. This patch adds a shortcut for order-0 pages that avoid
The fair zone allocation policy is not without cost but it can be reduced
slightly. This patch removes an unnecessary local variable, checks the
likely conditions of the fair zone policy first, uses a bool instead of
a flags check and falls through when a remote node is encountered instead
of doing
The page allocator fast path checks page multiple times unnecessarily.
This patch avoids all the slowpath checks if the first allocation attempt
succeeds.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 29 +++--
1 file changed, 15 insertions(+), 14 deletions(-)
diff --g
The allocator fast path looks up the first usable zone in a zonelist
and then get_page_from_freelist does the same job in the zonelist
iterator. This patch preserves the necessary information.
4.6.0-rc2 4.6.0-rc2
When bulk freeing pages from the per-cpu lists the zone is checked
for isolated pageblocks on every release. This patch checks it once
per drain. Technically this is race-prone but so is the existing
code.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 3 ++-
1 file changed, 2 insertions(+), 1
The original count is never reused so it can be removed.
Signed-off-by: Mel Gorman
---
mm/page_alloc.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3a60579342a5..bdcd4087553e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
Every page free checks a number of page fields for validity. This
catches premature frees and corruptions but it is also expensive.
This patch weakens the debugging check by checking PCP pages at the
time they are drained from the PCP list. This will trigger the bug
but the site that freed the corr
Every page allocated or freed is checked for sanity to avoid corruptions
that are difficult to detect later. A bad page could be due to a number of
fields. Instead of using multiple branches, this patch combines multiple
fields into a single branch. A detailed check is only necessary if that
check
The classzone_idx can be inferred from preferred_zoneref so remove the
unnecessary field and save stack space.
Signed-off-by: Mel Gorman
---
mm/compaction.c | 4 ++--
mm/internal.h | 3 ++-
mm/page_alloc.c | 7 +++
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/mm/compactio
From: Vlastimil Babka
An important function for cpusets is cpuset_node_allowed(), which optimizes on
the fact if there's a single root CPU set, it must be trivially allowed. But
the check "nr_cpusets() <= 1" doesn't use the cpusets_enabled_key static key
the right way where static keys eliminate
Every page allocated checks a number of page fields for validity. This
catches corruption bugs of pages that are already freed but it is expensive.
This patch weakens the debugging check by checking PCP pages only when
the PCP lists are being refilled. All compound pages are checked. This
potential
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