Hi Stefani,
About a year ago you posted a big patch to implement VDSO support for
32bit functions, and the response was a request to clean it up a bit by
breaking up the generic bits into a series to make it easier to review /
apply.
The patch I'm referring to can be found here:
http://th
On Mon, Jan 20, 2014 at 7:12 PM, Vivek Gautam wrote:
> Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs.
> The new driver uses the generic PHY framework and will interact
> with DWC3 controller present on Exynos5 series of SoCs.
> Thereby, removing old phy-samsung-usb3 driver and rel
> -Original Message-
> From: iommu-boun...@lists.linux-foundation.org [mailto:iommu-
> boun...@lists.linux-foundation.org] On Behalf Of Alex Williamson
> Sent: Saturday, January 18, 2014 2:06 AM
> To: Sethi Varun-B16395
> Cc: io...@lists.linux-foundation.org; linux-kernel@vger.kernel.org
On Mon, Jan 20, 2014 at 9:33 PM, Alex Shi wrote:
> It's useful to track this value in debug mode.
>
> Signed-off-by: Alex Shi
> ---
> kernel/sched/debug.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
> index 1e43e70..f5c529a 100644
> --- a/
On Tue, Jan 21, 2014 at 12:47 AM, Jiri Kosina wrote:
> On Mon, 20 Jan 2014, Reyad Attiyat wrote:
>
>> The below patch fixes a bug 64811
>> (https://bugzilla.kernel.org/show_bug.cgi?id=64811) of the Microsoft
>> Surface Type/Touch cover 2 devices being detected as a multitouch
>> device.
>> The fix
On 01/13/2012 02:53 AM, Andrew Ayer wrote:
This adds a 4 argument version of fchmodat (fchmodat4) that
supports a flag argument, as specified by POSIX. It supports
the same two flags as fchownat: AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH.
I don't think it's possible to emulate AT_EMPTY_PATH in use
Thanks for reviewing.
Sorry for make you misunderstanding, on our x86 platform, we want all the CPUs
share one policy by setting CPUFREQ_SHARED_TYPE_ALL, not share one HW clock
line.
If the CPUs work at different frequency at init stage, then while the CPUs
registering, no policy to align all t
This is under CAP_SYS_ADMIN but Smatch complains that mask comes from
the user and the test for "mask > 0xf" can underflow. The fix is
simple.
Signed-off-by: Dan Carpenter
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index a54ee1d054d9..0c4e3e47d462 100644
--- a/ar
Hi,
Alexandre Courbot wrote:
> On Sat, Jan 18, 2014 at 7:43 AM, Linus Walleij
> wrote:
> > On Fri, Jan 17, 2014 at 9:53 PM, Russell King - ARM Linux
> > wrote:
> >> On Fri, Jan 17, 2014 at 01:42:44PM -0700, Stephen Warren wrote:
> >
[...]
> > If the OPEN_DRAIN flag is set on that descriptor we
On Fri, Dec 20, 2013 at 1:30 AM, Mel Gorman wrote:
> The annual Linux Storage, Filesystem and Memory Management Summit for
> 2014 will be held on March 24th and 25th before the Linux Foundation
> Collaboration summit at The Meritage Resort, Napa Valley, CA.
>
>
> http://events.linuxfounda
Am Mon, 20 Jan 2014 22:16:33 -0800 (PST)
schrieb David Rientjes :
> Not sure why you don't just do a one line patch:
>
> - phys_addr_t size;
> + phys_addr_t size __maybe_unused;
> to fix it.
Just because I did not know that __maybe_unused thing.
Discussion of this fix seems to be obso
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Hi, Alex
On 01/21/2014 01:33 PM, Alex Shi wrote:
> rq->avg_idle try to reflect the average idle time between the cpu idle
> and first wakeup. But in the function, it maybe get a negative value
> if old avg_idle is too small. Then this negative value will be double
> counted in next time calculatio
On Mon, 20 Jan 2014, Reyad Attiyat wrote:
> The below patch fixes a bug 64811
> (https://bugzilla.kernel.org/show_bug.cgi?id=64811) of the Microsoft
> Surface Type/Touch cover 2 devices being detected as a multitouch
> device.
> The fix adds the HID of the two devices to hid-microsoft driver. This
On 01/20/2014 10:02 PM, Matias Bjorling wrote:
On 01/20/2014 04:58 AM, Raghavendra K T wrote:
If we load the null_blk module with bs=8k we get following oops:
[ 3819.812190] BUG: unable to handle kernel NULL pointer dereference at
0008
[ 3819.812387] IP: [] create_empty_buffers+0x
Dear Will,
Thanks for your reply,
We are using Cortex A15.
yes, this is with ticket lock.
We will check value of arch_spinlock_t and share it. It is bit
difficult to reproduce this scenario.
If you have some idea ,please suggest how to reproduce it.
thanks
On Mon, Jan 20, 2014 at 3:50 PM, Wi
2014/1/21 Minchan Kim :
> Please check your MUA and don't break thread.
>
> On Tue, Jan 21, 2014 at 11:07:42AM +0800, Cai Liu wrote:
>> Thanks for your review.
>>
>> 2014/1/21 Minchan Kim :
>> > Hello Cai,
>> >
>> > On Mon, Jan 20, 2014 at 03:50:18PM +0800, Cai Liu wrote:
>> >> zswap can support mu
On 21 January 2014 08:35, lizhuangzhi wrote:
> Some SMP systems want to make all the possible CPUs share the clock,
> if the CPUs init frequencies aren't the same, we need to align all the
> CPUs to the same frequency while CPUs registing to avoid mismatched
> CPU's P-states.
>
> Signed-off-by: li
Hi all,
This tree fails (more than usual) the powerpc allyesconfig build.
Changes since 20140117:
Dropped tree: sh (complex merge conflicts against very old commits)
imx-mxs (complex merge conflicts against the arm tree)
The imx-mxs tree gained conflicts against the arm tree (so I dropp
On 11:39 Mon 20 Jan , Bo Shen wrote:
> Hi J,
>
> On 01/18/2014 01:20 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> >On 10:59 Fri 17 Jan , Bo Shen wrote:
> >>In sama5d3 SoC, there are 16 endpoints. As the USBA_NR_ENDPOINTS
> >>is only 7. So, fix it for sama5d3 SoC using the udc->num_ep.
> >
On Mon, 20 Jan 2014, Philipp Hachtmann wrote:
> diff --git a/mm/nobootmem.c b/mm/nobootmem.c
> index e2906a5..0215c77 100644
> --- a/mm/nobootmem.c
> +++ b/mm/nobootmem.c
> @@ -116,23 +116,29 @@ static unsigned long __init
> __free_memory_core(phys_addr_t start,
> static unsigned long __init fre
On Thu, 16 Jan 2014, Michal Hocko wrote:
> > The heuristic may have existed for ages, but the proposed memcg
> > configuration for preserving memory such that userspace oom handlers may
> > run such as
> >
> > _root__
> > / \
> >
On Mon, 20 Jan 2014, Greg Kroah-Hartmann wrote:
> > The patches getting proposed through -mm for stable boggles my mind
> > sometimes.
>
> Do you have any objections to patches that I have taken for -stable? If
> so, please let me know.
>
You've haven't taken the ones that I outlined in
http:
On Mon, Jan 20, 2014 at 09:58:28PM -0800, David Rientjes wrote:
> The patches getting proposed through -mm for stable boggles my mind
> sometimes.
Do you have any objections to patches that I have taken for -stable? If
so, please let me know.
thanks,
greg k-h
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On 01/21/2014 01:33 PM, Alex Shi wrote:
> rq->avg_idle try to reflect the average idle time between the cpu idle
> and first wakeup. But in the function, it maybe get a negative value
> if old avg_idle is too small. Then this negative value will be double
> counted in next time calculation. Guess t
On Thu, 16 Jan 2014, Michal Hocko wrote:
> > This is concerning because it's merged in -mm without being tested by Eric
> > and is marked for stable while violating the stable kernel rules criteria.
>
> Are you questioning the patch fixes the described issue?
>
> Please note that the exit_robus
Hi Arnaldo,
On Fri, 17 Jan 2014 11:34:04 -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Jan 17, 2014 at 04:44:04PM +0900, Namhyung Kim escreveu:
>> On Thu, 16 Jan 2014 20:23:27 +, Gaurav Jain wrote:
>> > On 1/16/14, 9:37 AM, "Arnaldo Carvalho de Melo"
>> > wrote:
>> >
>> >>Em Thu, Jan 16, 2
On Sat, 18 Jan 2014, Xishi Qiu wrote:
> In the process IO direction, dio_refill_pages will call get_user_pages_fast
> to map the page from user space. If ret is less than 0 and IO is write, the
> function will create a zero page to fill data. This may work for some file
> system, but in some de
On Tue, Jan 21, 2014 at 02:03:58PM +1100, Dave Chinner wrote:
> On Mon, Jan 20, 2014 at 06:17:37PM -0500, Johannes Weiner wrote:
> > On Fri, Jan 17, 2014 at 11:05:17AM +1100, Dave Chinner wrote:
> > > On Fri, Jan 10, 2014 at 01:10:43PM -0500, Johannes Weiner wrote:
> > > > + /* Only shadow en
It's useful to track this value in debug mode.
Signed-off-by: Alex Shi
---
kernel/sched/debug.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 1e43e70..f5c529a 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -315,6 +315,7 @@
rq->avg_idle try to reflect the average idle time between the cpu idle
and first wakeup. But in the function, it maybe get a negative value
if old avg_idle is too small. Then this negative value will be double
counted in next time calculation. Guess that is not the original purpose,
so recalibrate
On Mon, 20 Jan 2014, Jianguo Wu wrote:
> When OOM happen, will dump buddy free areas info, hugetlb pages info,
> memory state of all eligible tasks, per-cpu memory info.
> But do not dump slab/vmalloc info, sometime, it's not enough to figure out the
> reason OOM happened.
>
> So, my questions ar
[cc: btrfs]
On Mon, Jan 20, 2014 at 8:46 PM, Dave Chinner wrote:
> On Mon, Jan 20, 2014 at 04:59:23PM -0800, Andy Lutomirski wrote:
>> The code below runs quickly for a few iterations, and then it slows
>> down and the whole system becomes laggy for far too long.
>>
>> Removing the sync_file_rang
From: "Lad, Prabhakar"
clk_set_rate(), clk_prepare_enable() functions can fail, so check the return
values to avoid surprises.
Signed-off-by: Lad, Prabhakar
---
Changes for v2:
1: Called regulator_bulk_disable() in the error path
drivers/media/i2c/mt9p031.c | 15 ---
1 file c
On Mon, Jan 20, 2014 at 2:54 PM, Linus Torvalds
wrote:
> So I pulled this, but one question:
>
> On Mon, Jan 20, 2014 at 8:47 AM, H. Peter Anvin wrote:
>> +config RANDOMIZE_BASE
>> + bool "Randomize the address of the kernel image"
>> + depends on RELOCATABLE
>> + depends on !HI
Commit-ID: f8dcdf0130d3ba34f8f7531af7c45616efe1e32e
Gitweb: http://git.kernel.org/tip/f8dcdf0130d3ba34f8f7531af7c45616efe1e32e
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:23 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:45:25 -0800
uapi: Use __kernel_ulong_t in
On Fri, 17 Jan 2014, Michal Hocko wrote:
> On Thu 16-01-14 11:15:36, Hugh Dickins wrote:
>
> > I don't believe 19f39402864e was responsible for a reference leak,
> > that came later. But I think it was responsible for the original
> > endless iteration (shrink_zone going around and around getting
Commit-ID: 63159f5dcccb3858d88aaef800c4ee0eb4cc8577
Gitweb: http://git.kernel.org/tip/63159f5dcccb3858d88aaef800c4ee0eb4cc8577
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:24 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:45:33 -0800
uapi: Use __kernel_long_t in
Commit-ID: b9cd5ca22d6739c61655d4fcf8b29669d5d177a3
Gitweb: http://git.kernel.org/tip/b9cd5ca22d6739c61655d4fcf8b29669d5d177a3
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:21 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:45:01 -0800
uapi: Use __kernel_ulong_t in
Commit-ID: 386916598e901e406c1f1fc801ade2646a1e8137
Gitweb: http://git.kernel.org/tip/386916598e901e406c1f1fc801ade2646a1e8137
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:22 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:45:13 -0800
x86, uapi, x32: Use __kernel_
Commit-ID: 071ed2456f79722d0a54f51717e66aacbc7a5d26
Gitweb: http://git.kernel.org/tip/071ed2456f79722d0a54f51717e66aacbc7a5d26
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:19 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:44:35 -0800
uapi, asm-generic: Use __kern
Commit-ID: 7fb30128527a4220f181c2867edd9ac178175a87
Gitweb: http://git.kernel.org/tip/7fb30128527a4220f181c2867edd9ac178175a87
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:17 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:44:05 -0800
uapi: Use __kernel_long_t in
Commit-ID: 443d5670f77aab121cb95f45da60f0aad390bcb5
Gitweb: http://git.kernel.org/tip/443d5670f77aab121cb95f45da60f0aad390bcb5
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:20 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:44:50 -0800
uapi: Use __kernel_long_t in
Commit-ID: b684bfedc94d4b2efff09dc499a9985321c482f5
Gitweb: http://git.kernel.org/tip/b684bfedc94d4b2efff09dc499a9985321c482f5
Author: H.J. Lu
AuthorDate: Fri, 27 Dec 2013 14:14:18 -0800
Committer: H. Peter Anvin
CommitDate: Mon, 20 Jan 2014 14:44:17 -0800
uapi: Use __kernel_long_t/__k
Hi Mike,
On Saturday 18 January 2014 03:14 PM, Chen Gang wrote:
> Hello Maintainers:
>
> Please help check this patch when you have time.
>
> Thanks.
Do you know whose tree this is goona go thru. I can take it thru ARC (but maybe
for 3.15, however it would be better it went thru mm or some such).
Please check your MUA and don't break thread.
On Tue, Jan 21, 2014 at 11:07:42AM +0800, Cai Liu wrote:
> Thanks for your review.
>
> 2014/1/21 Minchan Kim :
> > Hello Cai,
> >
> > On Mon, Jan 20, 2014 at 03:50:18PM +0800, Cai Liu wrote:
> >> zswap can support multiple swapfiles. So we need to che
On Mon, Jan 20, 2014 at 04:59:23PM -0800, Andy Lutomirski wrote:
> The code below runs quickly for a few iterations, and then it slows
> down and the whole system becomes laggy for far too long.
>
> Removing the sync_file_range call results in no I/O being performed at
> all (which means that the
On Tue, Jan 21, 2014 at 08:56:51AM +1000, Peter Hutterer wrote:
> On Mon, Jan 20, 2014 at 05:17:08PM -0500, Benjamin Tissoires wrote:
> > On Mon, Jan 20, 2014 at 4:53 PM, Dmitry Torokhov
> > wrote:
> > > Hi Benjamin,
> > >
> > > On Fri, Jan 17, 2014 at 02:12:51PM -0500, Benjamin Tissoires wrote:
>
On Tue, Jan 21, 2014 at 11:07 AM, Cai Liu wrote:
> Thanks for your review.
>
> 2014/1/21 Minchan Kim :
>> Hello Cai,
>>
>> On Mon, Jan 20, 2014 at 03:50:18PM +0800, Cai Liu wrote:
>>> zswap can support multiple swapfiles. So we need to check
>>> all zbud pool pages in zswap.
>>>
>>> Version 2:
>>>
On 2014-1-21 2:39, Arnd Bergmann wrote:
> On Monday 20 January 2014, Hanjun Guo wrote:
acpi_register_ioapic()/acpi_unregister_ioapic() will be used for IOAPIC
hotplug and GIC distributor is something like IOAPIC on x86, so I think
these two functions can be reserved for future use.
>
On 2014-1-21 7:34, Rafael J. Wysocki wrote:
> On Monday, January 20, 2014 10:08:41 PM Hanjun Guo wrote:
>> On 2014年01月18日 21:47, Rafael J. Wysocki wrote:
>>> On Saturday, January 18, 2014 11:52:18 AM Hanjun Guo wrote:
On 2014-1-18 11:45, Hanjun Guo wrote:
> On 2014-1-17 20:06, Sudeep Holla
On Mon, 2014-01-20 at 22:51 +0100, Peter Zijlstra wrote:
> I'm still waiting for someone to explain what's wrong with:
>
> static inline void mwait_idle(void)
> {
> local_irq_enable();
> mwait_idle_with_hints(0, 0);
> }
How about just do that going forward, it work, and can always be
On 10/29/2013 04:32 PM, John Twideldum wrote:
The first ~170kb of /dev/sda got blown away with what seems to be a logging
output
by Powertop, when I was playing with the tuneables.
So did you log the output to some file? I'm just trying to understand how
it could get onto your disk in the firs
Some SMP systems want to make all the possible CPUs share the clock,
if the CPUs init frequencies aren't the same, we need to align all the
CPUs to the same frequency while CPUs registing to avoid mismatched
CPU's P-states.
Signed-off-by: lizhuangzhi
---
drivers/cpufreq/cpufreq.c |2 ++
1 fi
On Sat, Jan 18, 2014 at 8:11 AM, Linus Walleij wrote:
> On Fri, Jan 17, 2014 at 6:43 PM, Chen-Yu Tsai wrote:
>> On Sat, Jan 18, 2014 at 12:47 AM, Arnd Bergmann wrote:
>
+- NAME_shutdown-gpios : GPIO phandle to shutdown control
+ (phandle must be the second)
>>>
Thanks for your review.
2014/1/21 Minchan Kim :
> Hello Cai,
>
> On Mon, Jan 20, 2014 at 03:50:18PM +0800, Cai Liu wrote:
>> zswap can support multiple swapfiles. So we need to check
>> all zbud pool pages in zswap.
>>
>> Version 2:
>> * add *total_zbud_pages* in zbud to record all the pages in
On Mon, Jan 20, 2014 at 06:17:37PM -0500, Johannes Weiner wrote:
> On Fri, Jan 17, 2014 at 11:05:17AM +1100, Dave Chinner wrote:
> > On Fri, Jan 10, 2014 at 01:10:43PM -0500, Johannes Weiner wrote:
> > > + /* Only shadow entries in there, keep track of this node */
> > > + if (!(node->count & RADIX
On Sat, Jan 18, 2014 at 7:43 AM, Linus Walleij wrote:
> On Fri, Jan 17, 2014 at 9:53 PM, Russell King - ARM Linux
> wrote:
>> On Fri, Jan 17, 2014 at 01:42:44PM -0700, Stephen Warren wrote:
>
>>> I believe you want gpio_get_value() to return either the driven or
>>> actual pin value where it can
Since acpi_evaluate_object() returns acpi_status and not plain int,
ACPI_FAILURE() should be used for checking its return value.
Reviewed-by: Jani Nikula
Signed-off-by: Yijing Wang
---
v3->v4: Fix spell error, add Jani Nikula reviewed-by.
v2->v3: Fix compile error pointed out by Hanjun.
v1->v2:
Hi all,
Today's linux-next merge of the sound-asoc tree got a conflict in
sound/soc/soc-compress.c between commit 2a99ef0fdb35 ("ASoC: compress:
Add suport for DPCM into compressed audio") from the sound tree and
commit 76063d340520 ("ASoC: compress: Add suport for DPCM into compressed
audio") fro
Hello Cai,
On Mon, Jan 20, 2014 at 03:50:18PM +0800, Cai Liu wrote:
> zswap can support multiple swapfiles. So we need to check
> all zbud pool pages in zswap.
>
> Version 2:
> * add *total_zbud_pages* in zbud to record all the pages in pools
> * move the updating of pool pages statistics to
On Sun, 19 Jan 2014, George Spelvin wrote:
It's credited to Suresh Siddha, whom I've cc'ed (along with others who
signed off). Suresh, if you're still around, could you comment on why
math_state_restore always leaves interrupts disabled, regardless of their
state on entry? Is there a deep reas
On 01/17, Bjorn Andersson wrote:
> diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
> new file mode 100644
> index 000..2e0020e
> --- /dev/null
> +++ b/drivers/i2c/busses/i2c-qup.c
> @@ -0,0 +1,894 @@
> +/* Copyright (c) 2009-2013, The Linux Foundation. All rights reserv
On Sat, 18 Jan 2014 04:15:29 +0100
Mike Galbraith wrote:
> > So you also have the timers-do-not-raise-softirq-unconditionally.patch?
>
People have been complaining that the latest 3.12-rt does not boot on
intel i7 boxes. And by reverting this patch, it boots fine.
I happen to have a i7 box t
Hi Andrew and CCs
I've put together (rather quickly) a driver for directly handling the backlight
driver chip (LM8550) on the 2013 MacBook Air. It is needed to work around a bug
(likely in firmware) that occurs after suspend/resume. See:
https://bugs.freedesktop.org/show_bug.cgi?id=67454
This se
On Mon, Jan 20, 2014 at 11:41 PM, Frederic Weisbecker
wrote:
> On Mon, Jan 20, 2014 at 08:30:10PM +0530, Viresh Kumar wrote:
>> On 20 January 2014 19:29, Lei Wen wrote:
>> > Hi Viresh,
>>
>> Hi Lei,
>>
>> > I have one question regarding unbounded workqueue migration in your case.
>> > You use hot
We will need the MCS lock code for doing optimistic spinning for rwsem
and queue rwlock. Extracting the MCS code from mutex.c and put into
its own file allow us to reuse this code easily.
Note that using the smp_load_acquire/smp_store_release pair used in
mcs_lock and mcs_unlock is not sufficient
From: Waiman Long
Create a new mcs_spinlock.c file to contain the
mcs_spin_lock() and mcs_spin_unlock() function.
Signed-off-by: Waiman Long
Signed-off-by: Tim Chen
---
include/linux/mcs_spinlock.h | 77 ++
kernel/locking/Makefile
From: Jason Low
Remove unnecessary operation to assign locked status to 1 if lock is
acquired without contention as this value will not be checked by lock
holder again and other potential lock contenders will not be looking at
their own lock status.
Make the cmpxchg(lock, node, NULL) == node che
From: Peter Zijlstra
This patch allows each architecture to add its specific assembly optimized
arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for
MCS lock and unlock functions.
Signed-off-by: Tim Chen
---
arch/alpha/include/asm/Kbuild | 1 +
arch/arc/include/asm/Kbuild
From: Will Deacon
When contended, architectures may be able to reduce the polling overhead
in ways which aren't expressible using a simple relax() primitive.
This patch allows architectures to hook into the mcs_{lock,unlock}
functions for the contended cases only.
Signed-off-by: Will Deacon
Si
This update to the patch series reorganize the order of the patches
by fixing MCS lock barrier leakage first before making standalone
MCS lock and unlock functions. We also changed the hooks to architecture
specific mcs_spin_lock_contended and mcs_spin_lock_uncontended from
needing Kconfig to gene
From: Waiman Long
This patch corrects the way memory barriers are used in the MCS lock
with smp_load_acquire and smp_store_release fucnction.
It removes ones that are not needed.
Suggested-by: Michel Lespinasse
Signed-off-by: Waiman Long
Signed-off-by: Jason Low
Signed-off-by: Tim Chen
---
Takashi Iwai wrote, on 20/01/14 19:22:
At Sun, 19 Jan 2014 17:32:16 +1030,
Arthur Marsh wrote:
I have had reproducible lock-ups on shut-down (at the shutting down ALSA
stage) of my AMD64 machine (Asus M3A78Pro motherboard, BIOS 1701
01/27/2011, CPU AMD Athlon(tm) II X4 640 Processor) running
The code below runs quickly for a few iterations, and then it slows
down and the whole system becomes laggy for far too long.
Removing the sync_file_range call results in no I/O being performed at
all (which means that the kernel isn't totally screwing this up), and
changing "4096" to SIZE causes
Hi Ben,
thanks for your work on this.
On Mon, Jan 20, 2014 at 04:10:32PM +, Ben Dooks wrote:
> Add a number of files to the list of files covered by SHMOBILE
> so any changes to these can be reported with get_maintailers.pl
> for the current SHMOILE architectures.
I'm fine with you only addr
The below patch fixes a bug 64811
(https://bugzilla.kernel.org/show_bug.cgi?id=64811) of the Microsoft
Surface Type/Touch cover 2 devices being detected as a multitouch
device.
The fix adds the HID of the two devices to hid-microsoft driver. This
ensures that hid-input will eventually be used for t
On Mon, Jan 20, 2014 at 04:26:23PM -0800, Greg KH wrote:
> On Tue, Jan 21, 2014 at 12:07:06AM +, Russell King - ARM Linux wrote:
> > On Mon, Jan 20, 2014 at 03:51:28PM -0800, Greg KH wrote:
> > > On Mon, Jan 20, 2014 at 11:16:03PM +, Russell King - ARM Linux wrote:
> > > > I don't believe t
Tetsuo Handa writes:
> Rusty, would you pick up this patch?
>
> This message was added in 3.13-rc1. Thus, should be fixed in 3.13.
Thanks, applied. It's a bit trivial for a CC:stable though.
Cheers,
Rusty.
> Tetsuo Handa wrote:
>> From cc90e27d5cda227e7a0cbeb5de3cc1cbb1595dfa Mon Sep 17 00:00:
On Tue, Jan 21, 2014 at 12:07:06AM +, Russell King - ARM Linux wrote:
> On Mon, Jan 20, 2014 at 03:51:28PM -0800, Greg KH wrote:
> > On Mon, Jan 20, 2014 at 11:16:03PM +, Russell King - ARM Linux wrote:
> > > I don't believe the driver model has any locking to prevent a drivers
> > > ->prob
On 20/01/14 22:03, Wei Liu wrote:
On Mon, Jan 20, 2014 at 09:24:28PM +, Zoltan Kiss wrote:
@@ -557,12 +577,25 @@ void xenvif_disconnect(struct xenvif *vif)
void xenvif_free(struct xenvif *vif)
{
int i, unmap_timeout = 0;
+ /* Here we want to avoid timeout messages if an skb
On Mon, Jan 20, 2014 at 11:47:34PM +, Alan Cox wrote:
> But yes I agree about the idiom, but a definite NAK to any attempts to
> plaster over this grand screwup by crapping in the tty core. Your turd,
> deal with it locally in the ARM code if you can't apply common sense and
> just go dynamic.
On Mon, Jan 20, 2014 at 01:03:48PM +0300, Sergey Senozhatsky wrote:
> On (01/20/14 14:12), Minchan Kim wrote:
> > Hello Sergey,
> >
> > I reviewed this patchset and I suggest somethings.
> > Please have a look and feedback to me. :)
> >
> > 1. Let's define new file zram_comp.c
> > 2. zram_comp in
On Mon, Jan 20, 2014 at 03:51:28PM -0800, Greg KH wrote:
> On Mon, Jan 20, 2014 at 11:16:03PM +, Russell King - ARM Linux wrote:
> > I don't believe the driver model has any locking to prevent a drivers
> > ->probe function running concurrently with it's ->remove function for
> > two (or more)
Hi Shawn,
Today's linux-next merge of the imx-mxs tree got conflicts in
arch/arm/boot/dts/Makefile, arch/arm/boot/dts/imx6dl-hummingboard.dts,
arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi and
arch/arm/boot/dts/imx6qdl-microsom.dtsi between commits 728d5599f5d8
("ARM: imx: initial SolidRun Hummin
On 01/17/2014 08:20 PM, Russell King - ARM Linux wrote:
On Fri, Jan 17, 2014 at 07:57:16PM -0500, Alan Ott wrote:
On 01/17/2014 08:46 AM, Russell King - ARM Linux wrote:
My suspicion therefore is that some other thread must have died while
holding the mmap_sem, so there's probably a kernel oops
On Mon, Jan 20, 2014 at 11:35:41PM +, Alan Cox wrote:
> > The first bit is easy... but we need to add locks to every serial
> > driver to prevent two probes operating concurrently...
>
> The bus probe should already be serializing surely ?
Yes, it better be, otherwise that bus is badly broken
On Mon, Jan 20, 2014 at 11:16:03PM +, Russell King - ARM Linux wrote:
> On Mon, Jan 20, 2014 at 03:11:41PM -0800, Greg KH wrote:
> > On Mon, Jan 20, 2014 at 09:32:06PM +, Russell King - ARM Linux wrote:
> > > On Mon, Jan 20, 2014 at 01:16:01PM -0800, Greg KH wrote:
> > > > On Mon, Jan 20, 2
On Mon, 20 Jan 2014 23:14:57 +
Mark Brown wrote:
> On Mon, Jan 20, 2014 at 09:43:05PM +, Alan Cox wrote:
>
> > The dynamic major/minor is the right patch. If the userspace breaks then
> > the userspace was broken, but I see no evidence in the discussion that
> > the userspace broke.
>
>
In commit 232d2d60aa5469bb097f55728f65146bd49c1d25
Author: Waiman Long
Date: Mon Sep 9 12:18:13 2013 -0400
dcache: Translating dentry into pathname without taking rename_lock
The __dentry_path locking was changed and the variable error was
intended to be moved outside of the loop. Unfor
> The first bit is easy... but we need to add locks to every serial
> driver to prevent two probes operating concurrently...
The bus probe should already be serializing surely ?
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On Mon, 2014-01-20 at 13:30 +0100, Peter Zijlstra wrote:
>
> Then again, people seem to whinge if you don't keep these Kbuild files
> sorted, but manually sorting 29 files is just not something I like to
> do.
>
Peter,
Can you clarify what exactly needs to be sorted? The Kbuild files
spit out
Am 2013-10-29 21:10, schrieb Jan Kara:
>> The first ~170kb of /dev/sda got blown away with what seems to be a logging
>> output
>> by Powertop, when I was playing with the tuneables.
>> (Luckily the first partition starts later :-))
> So did you log the output to some file? I'm just trying to un
On 01/20/2014 11:37 PM, Borislav Petkov wrote:
On Mon, Jan 20, 2014 at 11:27:25PM +0100, Daniel Exner wrote:
I just did the same procedure with Kernel Version 3.13: same poor rates.
I think I will try to see of 3.12.6 was still ok and bisect from there.
Or try something more coarse-grained lik
A bug was introduced with the is_mounted helper function in
commit f7a99c5b7c8bd3d3f533c8b38274e33f3da9096e
Author: Al Viro
Date: Sat Jun 9 00:59:08 2012 -0400
get rid of ->mnt_longterm
it's enough to set ->mnt_ns of internal vfsmounts to something
distinct from all struct mnt_nam
On Mon, 2014-01-20 at 16:15 +0800, shaobingqing wrote:
> If initiate_file_draining returned NFS4ERR_DELAY, all the lsegs of
> a file might be released before the retrying cb_layout request arriving
> at the client. In this situation, layoutget request of the file will
> use open stateid to obtain a
On Mon, Jan 20, 2014 at 11:14:57PM +, Mark Brown wrote:
> On Mon, Jan 20, 2014 at 09:43:05PM +, Alan Cox wrote:
> > If the hardware isn't present then the driver shouldn't even register
> > with the tty layer in the first place so it doesn't make any resource
> > differeneces either for pro
On Monday, January 20, 2014 10:08:41 PM Hanjun Guo wrote:
> On 2014年01月18日 21:47, Rafael J. Wysocki wrote:
> > On Saturday, January 18, 2014 11:52:18 AM Hanjun Guo wrote:
> >> On 2014-1-18 11:45, Hanjun Guo wrote:
> >>> On 2014-1-17 20:06, Sudeep Holla wrote:
> On 17/01/14 02:03, Hanjun Guo wr
On Fri, Jan 17, 2014 at 11:05:17AM +1100, Dave Chinner wrote:
> On Fri, Jan 10, 2014 at 01:10:43PM -0500, Johannes Weiner wrote:
> > Previously, page cache radix tree nodes were freed after reclaim
> > emptied out their page pointers. But now reclaim stores shadow
> > entries in their place, which
On Mon, 2014-01-20 at 14:59 +0800, shaobingqing wrote:
> In current code, there only one struct rpc_rqst is prealloced. If one
> callback request is received from two sk_buff, the xprt_alloc_bc_request
> would be execute two times with the same transport->xid. The first time
> xprt_alloc_bc_reques
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