On Tue, 2013-07-30 at 22:47 -0700, H. Peter Anvin wrote:
> On 07/29/2013 03:30 PM, Rafael J. Wysocki wrote:
> > On Monday, July 29, 2013 02:17:34 PM John W. Linville wrote:
> >> On Mon, Jul 29, 2013 at 03:27:44PM +0200, Rafael J. Wysocki wrote:
> >>
> >>> That said we have the same issue with
(2013/07/31 12:11), Alex Williamson wrote:
> On Wed, 2013-07-31 at 09:35 +0900, Takao Indoh wrote:
>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
>> index e37fea6..c595997 100644
>> --- a/drivers/pci/pci.c
>> +++ b/drivers/pci/pci.c
>> @@ -3392,6 +3392,59 @@ int pci_reset_function(struct
On 07/29/2013 03:30 PM, Rafael J. Wysocki wrote:
> On Monday, July 29, 2013 02:17:34 PM John W. Linville wrote:
>> On Mon, Jul 29, 2013 at 03:27:44PM +0200, Rafael J. Wysocki wrote:
>>
>>> That said we have the same issue with commits with just two SOB tags if
>>> a maintainer applies a patch that
On Sunday 23 June 2013 08:30 PM, Prabhakar Lad wrote:
> From: "Lad, Prabhakar"
>
> This patch makes a common function for to configure emac and calls
> it appropriately in DT and non DT boot mode. The system configuration
> chip CFGCHIP3, controls the emac module. This patch appropriately
>
There are a mix of function prototypes with and without extern
in the kernel sources. Standardize on not using extern for
function prototypes.
Function prototypes don't need to be written with extern.
extern is assumed by the compiler. Its use is as unnecessary as
using auto to declare
Hi Preeti,
> -Original Message-
> From: Preeti U Murthy [mailto:pre...@linux.vnet.ibm.com]
> Sent: Wednesday, July 31, 2013 12:00 PM
> To: Wang Dongsheng-B40534
> Cc: Deepthi Dharwar; b...@kernel.crashing.org; daniel.lezc...@linaro.org;
> linux-kernel@vger.kernel.org;
Hi,
On Tuesday 30 July 2013 12:41 PM, Felipe Balbi wrote:
> On Sun, Jul 21, 2013 at 08:46:53AM -0700, Greg KH wrote:
>> On Sun, Jul 21, 2013 at 01:12:07PM +0200, Tomasz Figa wrote:
>>> On Sunday 21 of July 2013 16:37:33 Kishon Vijay Abraham I wrote:
Hi,
On Sunday 21 July 2013 04:01
On Tue, Jul 30, 2013 at 08:37:08AM +1000, David Gibson wrote:
> On Mon, Jul 29, 2013 at 02:28:18PM +0900, Joonsoo Kim wrote:
> > Currently, we use a page with mapped count 1 in page cache for cow
> > optimization. If we find this condition, we don't allocate a new
> > page and copy contents.
Hello, David.
On Mon, Jul 29, 2013 at 05:28:23PM +1000, David Gibson wrote:
> On Mon, Jul 29, 2013 at 02:32:08PM +0900, Joonsoo Kim wrote:
> > If parallel fault occur, we can fail to allocate a hugepage,
> > because many threads dequeue a hugepage to handle a fault of same address.
> > This makes
On Wednesday 31 July 2013 10:00 AM, Joel Fernandes wrote:
> On 07/30/2013 12:18 AM, Sekhar Nori wrote:
>> On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
>>> Manual trigger for events missed as a result of splitting a
>>> scatter gather list and DMA'ing it in batches. Add a helper
>>>
On 07/30/2013 12:18 AM, Sekhar Nori wrote:
> On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
>> Manual trigger for events missed as a result of splitting a
>> scatter gather list and DMA'ing it in batches. Add a helper
>> function to trigger a channel incase any such events are missed.
>>
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
> On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
>> In an effort to move to using Scatter gather lists of any size with
>> EDMA as discussed at [1] instead of placing limitations on the driver,
>> we work through the limitations of the
On 07/30/2013 03:29 AM, Sekhar Nori wrote:
> On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
>> We certainly don't want error conditions to be cleared anywhere
>
> 'anywhere' is a really loaded term.
>
>> as this will make us 'forget' about missed events. We depend on
>> knowing which
On 07/30/2013 11:29 AM, Sekhar Nori wrote:
> On 7/30/2013 9:17 AM, Joel Fernandes wrote:
>
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index a432e6c..765d578 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
>
+ } else {
+
On Mon, Jul 29, 2013 at 04:19:10PM -0400, Naoya Horiguchi wrote:
> On Mon, Jul 29, 2013 at 02:32:07PM +0900, Joonsoo Kim wrote:
> > If we fail with a reserved page, just calling put_page() is not sufficient,
> > because put_page() invoke free_huge_page() at last step and it doesn't
> > know
On Tue, Jul 30, 2013 at 07:11:06PM -0500, Felipe Contreras wrote:
> No, the ACPI driver is exposing a backlight interface, which has a
> defined stable API.
>From the ACPI spec:
'The OEM may define the number 0 as "Zero brightness" that can mean to
turn off the lighting (e.g. LCD panel
On Mon, Jul 29, 2013 at 03:19:15PM -0400, Naoya Horiguchi wrote:
> On Mon, Jul 29, 2013 at 03:05:37PM -0400, Naoya Horiguchi wrote:
> > On Mon, Jul 29, 2013 at 02:32:06PM +0900, Joonsoo Kim wrote:
> > > If we fail with a allocated hugepage, it is hard to recover properly.
> > > One such example is
On Mon, Jul 29, 2013 at 02:39:30PM -0400, Naoya Horiguchi wrote:
> On Mon, Jul 29, 2013 at 02:32:02PM +0900, Joonsoo Kim wrote:
> > Just move down outsider_reserve check.
> > This makes code more readable.
> >
> > There is no functional change.
>
> Why don't you do this in 10/18?
Just help to
On Mon, Jul 29, 2013 at 02:27:54PM -0400, Naoya Horiguchi wrote:
> On Mon, Jul 29, 2013 at 02:32:01PM +0900, Joonsoo Kim wrote:
> > To implement a graceful failure handling, we need to know whether
> > allocation request is for reserved pool or not, on higher level.
> > In this patch, we just move
On Mon, Jul 29, 2013 at 02:05:51PM -0400, Naoya Horiguchi wrote:
> On Mon, Jul 29, 2013 at 02:31:59PM +0900, Joonsoo Kim wrote:
> > When we try to get a huge page with avoid_reserve, we don't consume
> > a reserved page. So it is treated like as non-reserve case.
>
> This patch will be completely
This commit adds a test of instruction counting using the PMU on powerpc.
Although the bulk of the code is architecture agnostic, the code needs to
run a precisely sized loop which is implemented in assembler.
Signed-off-by: Michael Ellerman
---
tools/testing/selftests/powerpc/Makefile
This commit adds support code used by upcoming powerpc tests.
Signed-off-by: Michael Ellerman
---
tools/testing/selftests/powerpc/harness.c | 83 +++
tools/testing/selftests/powerpc/subunit.h | 47 +
tools/testing/selftests/powerpc/utils.h | 34
This commit adds a powerpc subdirectory to tools/testing/selftests,
for tests that are powerpc specific.
On other architectures nothing is built. The makefile supports cross
compilation if the user sets ARCH and CROSS_COMPILE.
Signed-off-by: Michael Ellerman
---
On Tue, Jul 30, 2013 at 11:19:58PM +0530, Aneesh Kumar K.V wrote:
> Joonsoo Kim writes:
>
> > vma_need_reservation() can be substituted by vma_has_reserves()
> > with minor change. These function do almost same thing,
> > so unifying them is better to maintain.
>
> I found the resulting code
Hello, Naoya.
On Mon, Jul 29, 2013 at 01:52:52PM -0400, Naoya Horiguchi wrote:
> Hi,
>
> On Mon, Jul 29, 2013 at 02:31:57PM +0900, Joonsoo Kim wrote:
> > vma_need_reservation() can be substituted by vma_has_reserves()
> > with minor change. These function do almost same thing,
> > so unifying
On Wed, Jul 31, 2013 at 10:49:24AM +0800, Hillf Danton wrote:
> On Wed, Jul 31, 2013 at 10:27 AM, Joonsoo Kim wrote:
> > On Mon, Jul 29, 2013 at 03:24:46PM +0800, Hillf Danton wrote:
> >> On Mon, Jul 29, 2013 at 1:31 PM, Joonsoo Kim
> >> wrote:
> >> > alloc_huge_page_node() use
On 31 July 2013 07:13, Mike Turquette wrote:
> Quoting Viresh Kumar (2013-07-07 21:10:54)
>> On Mon, Jul 8, 2013 at 7:14 AM, Mike Turquette wrote:
>> > Removes direct handling of OPP tables and voltage regulators by calling
>> > of_clk_cpufreq_notifier_handler, introduced by commit "clk: cpufreq
On 07/26/2013 04:33 AM, Douglas Gilbert wrote:
> On 13-07-25 11:32 AM, vaughan wrote:
>> On 07/23/2013 01:03 AM, Jörn Engel wrote:
>>> On Mon, 22 July 2013 12:40:29 +0800, Vaughan Cao wrote:
There is a race when open sg with O_EXCL flag. Also a race may
happen between
sg_open and
From: Dave Chinner
Doing writeback on lots of little files causes terrible IOPS storms
because of the per-mapping writeback plugging we do. This
essentially causes imeediate dispatch of IO for each mapping,
regardless of the context in which writeback is occurring.
IOWs, running a concurrent
From: Dave Chinner
When competing sync(2) calls walk the same filesystem, they need to
walk the list of inodes on the superblock to find all the inodes
that we need to wait for IO completion on. However, when multiple
wait_sb_inodes() calls do this at the same time, they contend on the
the
From: Dave Chinner
The process of reducing contention on per-superblock inode lists
starts with moving the locking to match the per-superblock inode
list. This takes the global lock out of the picture and reduces the
contention problems to within a single filesystem. This doesn't get
rid of
Hi folks,
This series of patches is against the curent mmotm tree here:
http://git.cmpxchg.org/cgit/linux-mmotm.git/
It addresses several VFS scalability issues, the most pressing of which is lock
contention triggered by concurrent sync(2) calls.
The patches in the series are:
writeback: plug
From: Dave Chinner
We only add an item to the LRU is it is empty, and we only remove
them if they are on the LRU. We can check these conditions without
holding the node lock and avoid grabbing the lock if they evaluate
as not needing a list operation.
We can do this without concern, because we
From: Dave Chinner
wait_sb_inodes() current does a walk of all inodes in the filesystem
to find dirty one to wait on during sync. This is highly
inefficient and wastes a lot of CPU when there are lots of clean
cached inodes that we don't need to wait on.
To avoid this "all inode" walk, we need
From: Dave Chinner
Convert inode cache lookups to be protected by RCU locking rather
than the global inode_hash_lock. This will improve scalability of
inode lookup intensive workloads.
Tested w/ ext4 and btrfs on concurrent fsmark/lookup/unlink
workloads only. It removes the inode hash lock
From: Dave Chinner
The per-superblock inode list and lock is a bottleneck for systems
that cycle inodes in and out of cache concurrently. The global lock
is a limiting factor.
Most of the additions to the sb inode list occur on the CPU that
allocated the inode, and most of the removals occur
From: Dave Chinner
Some filesystems don't use the VFS inode hash and fake the fact they
are hashed so that all the writeback code works correctly. However,
this means the evict() path still tries to remove the inode from the
hash, meaning that the inode_hash_lock() needs to be taken
From: Dave Chinner
Inodes are removed lazily from the bdi writeback list, so in the
absence of sync(2) work inodes will build up on the bdi writback
list even though they are no longer under IO. Use the periodic
kupdate work check to remove inodes no longer under IO from the
writeback list.
>> One thing which would probably be worthwhile tho is getting rid of the
>> bitmap based qc tag allocator in libata. That one is just borderline
>> stupid to keep around on any setup which is supposed to be scalable.
> Your border might be wider than mine :-). Yes, the bitmap should
> definitely
From: Dave Chinner
The overall count of objects on a node might be accurate, but the
moment it is returned to the caller it is no longer perfectly
accurate. Hence we don't really need to hold the node lock to
protect the read of the object. The count is a long, so can be read
atomically on all
From: Dave Chinner
There's a small consistency problem between the inode and writeback
naming. Writeback calls the "for IO" inode queues b_io and
b_more_io, but the inode calls these the "writeback list" or
i_wb_list. This makes it hard to an new "under writeback" list to
the inode, or call it
On Wed, Jul 31, 2013 at 7:11 AM, Dave Chinner wrote:
> On Tue, Jul 30, 2013 at 05:59:07PM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> It can take a long time to run log recovery operation because it is
>> single threaded and is bound by read latency. We can find that it took
Hi Dongsheng,
On 07/31/2013 08:52 AM, Wang Dongsheng-B40534 wrote:
>
>
>> -Original Message-
>> From: Deepthi Dharwar [mailto:deep...@linux.vnet.ibm.com]
>> Sent: Wednesday, July 31, 2013 10:59 AM
>> To: b...@kernel.crashing.org; daniel.lezc...@linaro.org; linux-
>>
>
> -static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n,
> +static int powerpc_cpuidle_add_cpu_notifier(struct notifier_block *n,
> unsigned long action, void *hcpu)
> {
> int hotcpu = (unsigned long)hcpu;
> struct cpuidle_device *dev =
> -
On 07/30/2013 06:13 PM, Hanumant Singh wrote:
> On 7/30/2013 5:08 PM, Stephen Warren wrote:
>> On 07/30/2013 06:01 PM, Hanumant Singh wrote:
>>> On 7/30/2013 2:22 PM, Stephen Warren wrote:
On 07/30/2013 03:10 PM, hanumant wrote:
...
> We actually have the same TLMM pinmux used by
Need append "_D__linux__" to KBUILD_CFLAGS, just like some of another
architectures have done, or 'allmodconfig' can not pass compiling.
The related error:
CC [M] fs/coda/psdev.o
In file included from include/linux/coda.h:65:0,
from fs/coda/psdev.c:45:
Hoho, Tomi has applied the patch from Lius to fix this warning.
And this is the sixth patch to fix the same issue since last week.
Thanks,
Gu
On 07/31/2013 11:21 AM, Xishi Qiu wrote:
> When building v3.11-rc3, I get the following warning:
> ...
> drivers/video/vga16fb.c: In function
Acked-by: Jaehoon Chung
Best Regards,
Jaehoon Chung
On 07/30/2013 10:33 PM, Seungwon Jeon wrote:
> On Tue, July 30, 2013, Mark Brown wrote:
>> From: Mark Brown
>>
>> Use regulator_get_optional() to tell the core that requests for regulators
>> can fail in a real system.
>>
>> Signed-off-by:
> -Original Message-
> From: Deepthi Dharwar [mailto:deep...@linux.vnet.ibm.com]
> Sent: Wednesday, July 31, 2013 10:59 AM
> To: b...@kernel.crashing.org; daniel.lezc...@linaro.org; linux-
> ker...@vger.kernel.org; mich...@ellerman.id.au;
> srivatsa.b...@linux.vnet.ibm.com;
When building v3.11-rc3, I get the following warning:
...
drivers/video/vga16fb.c: In function ‘vga16fb_destroy’:
drivers/video/vga16fb.c:1268: warning: unused variable ‘dev’
...
Signed-off-by: Xishi Qiu
---
drivers/video/vga16fb.c |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
> "Nick" == Nick Alcock writes:
Nick> in which case we don't actually know that your Areca controller
Nick> supports the VPD page we thought it did: quite possibly only this
Nick> underlying disk does.
The ATA Information VPD page is created by the SCSI-ATA Translation
layer. The controller
On 07/31/2013 09:53 AM, Chen Gang wrote:
> On 07/31/2013 09:44 AM, Chen Gang wrote:
>> On 07/30/2013 08:29 PM, Joe Perches wrote:
>>> On Tue, 2013-07-30 at 15:30 +0800, Chen Gang wrote:
'#else' is useless, need remove.
Signed-off-by: Chen Gang
---
include/linux/coda.h |
> "Bernd" == Bernd Schubert writes:
Bernd,
>> Product revision level: R001
It's clearly not verbatim passthrough...
Bernd> Besides the firmware, the difference might be that I'm exporting
Bernd> single disks without any areca-raidset in between. I can try to
Bernd> confirm that
On Wed, 2013-07-31 at 09:35 +0900, Takao Indoh wrote:
> (2013/07/31 0:59), Bjorn Helgaas wrote:
> > On Tue, Jul 30, 2013 at 12:09 AM, Takao Indoh
> > wrote:
> >> (2013/07/29 23:17), Bjorn Helgaas wrote:
> >>> On Sun, Jul 28, 2013 at 6:37 PM, Takao Indoh
> >>> wrote:
> (2013/07/26 2:00),
> "Doug" == Douglas Gilbert writes:
Doug> I just examined a more recent Areca SAS RAID controller and would
Doug> describe it as the SCSI device from hell. One solution to this
Doug> problem is to modify the arcmsr driver so it returns a more
Doug> consistent set of lies to the management
As a part of pseries_idle backend driver cleanup to make
the code common to both pseries and powernv archs, it
is necessary to move the backend-driver code to powerpc/sysdev.
As a pre-requisite to that, it is essential to move plpar_wrapper.h
to include/asm.
Signed-off-by: Deepthi Dharwar
---
Move pseries_idle backend driver code to arch/powerpc/sysdev
so that the code can be used for a common driver for powernv
and pseries. This removes a lot of code duplicacy.
Signed-off-by: Deepthi Dharwar
---
arch/powerpc/platforms/pseries/Kconfig |9 -
The following patch extends the current pseries backend
idle driver to powernv platform.
Signed-off-by: Deepthi Dharwar
---
arch/powerpc/include/asm/processor.h |2 -
arch/powerpc/sysdev/Kconfig |8 +-
arch/powerpc/sysdev/Makefile |2 -
As a part of pseries_idle cleanup to make the backend driver
code common to both pseries and powernv, this patch
is essential to remove the dependency of pseries.h
header file.
Move the declaration of smt_snooze_delay from pseries.h
to processor_idle.c. smt_snooze_delay variable is
needed for
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar
---
arch/powerpc/platforms/powernv/setup.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git
smt-snooze-delay is tunable provided currently on powerpc to delay the
entry of an idle cpu to NAP state. By default, the value is 100us,
which is entry criteria for NAP state i.e only if the idle period is
above 100us it would enter NAP. Value of -1 disables entry into NAP.
This value can be set
Following patch series consolidates backend cpuidle driver
for pseries and powernv platforms.
Current existing backend driver for pseries has been moved to
arch/powerpc/sysdev and has been extended to accommodate
powernv idle power mgmt states.
As seen in V1 of this patch series, too much code
The USB hub driver's event handler contains a check to catch SuperSpeed
devices that transitioned into the SS.Inactive state and tries to fix
them with a reset. It decides whether to do a plain hub port reset or
call the usb_reset_device() function based on whether there was a device
attached to
On Wed, Jul 31, 2013 at 10:27 AM, Joonsoo Kim wrote:
> On Mon, Jul 29, 2013 at 03:24:46PM +0800, Hillf Danton wrote:
>> On Mon, Jul 29, 2013 at 1:31 PM, Joonsoo Kim wrote:
>> > alloc_huge_page_node() use dequeue_huge_page_node() without
>> > any validation check, so it can steal reserved page
On Mon, Jul 29, 2013 at 11:53:05AM -0700, Davidlohr Bueso wrote:
> On Mon, 2013-07-29 at 14:31 +0900, Joonsoo Kim wrote:
> > There is a race condition if we map a same file on different processes.
> > Region tracking is protected by mmap_sem and hugetlb_instantiation_mutex.
> > When we do mmap, we
On Mon, Jul 29, 2013 at 04:58:57PM +0800, Hillf Danton wrote:
> On Mon, Jul 29, 2013 at 1:31 PM, Joonsoo Kim wrote:
> > There is a race condition if we map a same file on different processes.
> > Region tracking is protected by mmap_sem and hugetlb_instantiation_mutex.
> > When we do mmap, we
Dear,
I'm pleased to announce that ktap released v0.2, the archive is available at:
https://github.com/ktap/ktap/archive/v0.2.tar.gz
= what's ktap?
A New Scripting Dynamic Tracing Tool For Linux
ktap have different design principles from Linux mainstream dynamic tracing
On Tue, Jul 30, 2013 at 10:57:37PM +0530, Aneesh Kumar K.V wrote:
> Joonsoo Kim writes:
>
> > Currently, to track a reserved and allocated region, we use two different
> > ways for MAP_SHARED and MAP_PRIVATE. For MAP_SHARED, we use
> > address_mapping's private_list and, for MAP_PRIVATE, we use
> Wait a moment. Why does each of these attempts lead to a 5-second
> timeout? Why don't they fail immediately?
Now that you mention it, that's a very good question. The kernel
enqueues a control transfer to the now disconnected address because
it's internal bookkeeping is not yet updated, but
On Tue, 30 Jul 2013, Peng Tao wrote:
> On Tue, Jul 30, 2013 at 8:29 AM, Xiong Zhou wrote:
> > From: Xiong Zhou
> >
> > In the lustre client driver, lloop depends on BLOCK. Add an
> > option for this dependence. Last version of this patch makes
> > LUSTRE_FS depends on BLOCK.
> > Remove
On Mon, Jul 29, 2013 at 03:24:46PM +0800, Hillf Danton wrote:
> On Mon, Jul 29, 2013 at 1:31 PM, Joonsoo Kim wrote:
> > alloc_huge_page_node() use dequeue_huge_page_node() without
> > any validation check, so it can steal reserved page unconditionally.
>
> Well, why is it illegal to use reserved
On 07/31/2013 10:07 AM, Felipe Contreras wrote:
> On Tue, Jul 30, 2013 at 8:36 PM, Aaron Lu wrote:
>> On 07/31/2013 08:11 AM, Felipe Contreras wrote:
>>> On Tue, Jul 30, 2013 at 6:13 PM, Rafael J. Wysocki wrote:
>>>
> If 0 turns the screen off with the intel driver, 0 should turn the
>
On Tue, Jul 30, 2013 at 8:59 PM, Aaron Lu wrote:
> On 07/31/2013 04:59 AM, Felipe Contreras wrote:
>> There is another interface the turn the screen off.
>>
>> If 0 turns the screen off with the intel driver, 0 should turn the
>> screen off with the ACPI driver, having inconsistent behavior
>>
On Tue, Jul 30, 2013 at 03:30:33PM -0400, Tomoki Sekiyama wrote:
> Hi,
>
> When some application launches several hundreds of processes that issue
> only a few small sync I/O requests, CFQ may cause heavy latencies
> (10+ seconds at the worst case), although the request rate is low enough for
>
On Tue, Jul 30, 2013 at 8:36 PM, Aaron Lu wrote:
> On 07/31/2013 08:11 AM, Felipe Contreras wrote:
>> On Tue, Jul 30, 2013 at 6:13 PM, Rafael J. Wysocki wrote:
>>
If 0 turns the screen off with the intel driver, 0 should turn the
screen off with the ACPI driver, having inconsistent
Hi Kim,
On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
> Hi Gu,
>
> The original read flow was to avoid redandunt lock/unlock_page() calls.
Right, this can gain better read performance. But is the wait step after
submitting bio with READ_SYNC needless too?
> And we should not wait for
On 07/31/2013 04:59 AM, Felipe Contreras wrote:
> On Tue, Jul 30, 2013 at 8:42 AM, Rafael J. Wysocki wrote:
>> On Tuesday, July 30, 2013 01:57:55 PM Aaron Lu wrote:
>>> On 07/30/2013 01:51 PM, Aaron Lu wrote:
On 07/30/2013 11:44 AM, Felipe Contreras wrote:
> On Mon, Jul 29, 2013 at 10:11
On 07/31/2013 09:44 AM, Chen Gang wrote:
> On 07/30/2013 08:29 PM, Joe Perches wrote:
>> On Tue, 2013-07-30 at 15:30 +0800, Chen Gang wrote:
>>> '#else' is useless, need remove.
>>>
>>> Signed-off-by: Chen Gang
>>> ---
>>> include/linux/coda.h |1 -
>>> 1 files changed, 0 insertions(+), 1
Use cgroup id instead of css id. This is a preparation to kill css id.
Note, as memcg treat 0 as an invalid id, while cgroup id starts with 0,
we define memcg_id == cgroup_id + 1.
Signed-off-by: Li Zefan
Acked-by: Michal Hocko
---
mm/memcontrol.c | 34 --
1
The only user of css_id was memcg, and it has been convered to use
cgroup->id, so kill css_id.
Signed-off-by: Li Zefan
Reviewed-by: Michal Hocko
---
include/linux/cgroup.h | 37
kernel/cgroup.c| 252 +
2 files changed, 1
This will be used as a replacement for css_lookup().
There's a difference with cgroup id and css id. cgroup id starts with 0,
while css id starts with 1.
v4:
- also check if cggroup_mutex is held.
- make it an inline function.
Signed-off-by: Li Zefan
Reviewed-by: Michal Hocko
---
memcg requires the cgroup id to be smaller than 65536.
This is a preparation to kill css id.
Signed-off-by: Li Zefan
Acked-by: Michal Hocko
---
mm/memcontrol.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 62541f5..ad7d7c9 100644
---
Now memcg uses cgroup id instead of css id. Update some comments and
set mem_cgroup_subsys->use_id to 0.
Signed-off-by: Li Zefan
Acked-by: Michal Hocko
---
mm/memcontrol.c | 23 ---
1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/mm/memcontrol.c
As cgroup id has been used in netprio cgroup and will be used in memcg,
it's important to make it clear how a cgroup id is allocated.
For example, in netprio cgroup, the id is used as index of anarray.
Signed-off-by: Li Zefan
Reviewed-by: Michal Hocko
---
include/linux/cgroup.h | 8 +++-
This is a preparation to kill css_id.
Signed-off-by: Li Zefan
Acked-by: Michal Hocko
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d12ca6f..626c426 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1434,7
This enables us to lookup a cgroup by its id.
v4:
- add a comment for idr_remove() in cgroup_offline_fn().
v3:
- on success, idr_alloc() returns the id but not 0, so fix the BUG_ON()
in cgroup_init().
- pass the right value to idr_alloc() so that the id for dummy cgroup is 0.
Signed-off-by:
This patchset converts memcg to use cgroup->id, and then we can remove
cgroup css_id.
As we've removed memcg's own refcnt, converting memcg to use cgroup->id
is very straight-forward.
The patchset is based on Tejun's cgroup tree.
v4:
- make cgroup_from_id() inline and check if cgroup_mutex is
On 07/30/2013 08:29 PM, Joe Perches wrote:
> On Tue, 2013-07-30 at 15:30 +0800, Chen Gang wrote:
>> '#else' is useless, need remove.
>>
>> Signed-off-by: Chen Gang
>> ---
>> include/linux/coda.h |1 -
>> 1 files changed, 0 insertions(+), 1 deletions(-)
>>
>> diff --git a/include/linux/coda.h
2013/7/30 Olof Johansson :
> As previous years, we are planning on hosting a ARM Kernel Summit
> attached to the main Kernel Summit, and we have graciously been given
> space to host it for two days, Oct 22-23 (Oct 23 is the track day for
> the main KS, so we're getting an extra day) in Edinburgh,
On Tue, Jul 30, 2013 at 10:14:19AM -0400, Tejun Heo wrote:
> Hello, Shaohua.
>
> On Tue, Jul 30, 2013 at 01:49:55PM +0800, Shaohua Li wrote:
> > > Note that copy_workqueue_attrs() is also used while creating worker
> > > pools and this change would mean that there will be worker pools with
> > >
Hi Maxime,
Overall this looks good to me, but I have some small comments:
El 30/07/13 11:44, Maxime Ripard escribió:
> Now that the clock driver has support for the A31 clocks, we can add
> them to the DTSI and start using them in the relevant hardware blocks.
>
> Signed-off-by: Maxime Ripard
On 07/31/2013 08:11 AM, Felipe Contreras wrote:
> On Tue, Jul 30, 2013 at 6:13 PM, Rafael J. Wysocki wrote:
>
>>> If 0 turns the screen off with the intel driver, 0 should turn the
>>> screen off with the ACPI driver, having inconsistent behavior
>>> depending on which driver is used is a bug.
Hi Ted,
On Mon, 29 Jul 2013 11:08:16 +1000 Stephen Rothwell
wrote:
>
> After merging the ext4 tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
>
> fs/ext4/ialloc.c: In function '__ext4_new_inode':
> fs/ext4/ialloc.c:817:1: warning: label 'next_ino' defined but not
On Tue, Jul 30, 2013 at 09:57:51AM -0400, Tejun Heo wrote:
> Hello,
>
> On Tue, Jul 30, 2013 at 09:07:08PM +0800, Shaohua Li wrote:
> > Ok, I should explain here. I can't add a work_struct for each stripe,
> > because
> > this will stress workqueue very hard. My system handles > 1M/s stripes,
>
(2013/07/31 0:59), Bjorn Helgaas wrote:
> On Tue, Jul 30, 2013 at 12:09 AM, Takao Indoh
> wrote:
>> (2013/07/29 23:17), Bjorn Helgaas wrote:
>>> On Sun, Jul 28, 2013 at 6:37 PM, Takao Indoh
>>> wrote:
(2013/07/26 2:00), Bjorn Helgaas wrote:
>
> My point about IOMMU and PCI
Hi Maxime,
El 30/07/13 11:44, Maxime Ripard escribió:
> The A31 has a mostly different clock set compared to the other older
> SoCs currently supported in the Allwinner clock driver.
>
> Add support for the basic useful clocks. The other ones will come in
> eventually.
>
> Signed-off-by: Maxime
Hi Arnaldo,
2013-07-30 오후 10:28, Arnaldo Carvalho de Melo 쓴 글:
Em Tue, Jul 30, 2013 at 06:18:58PM +0900, Namhyung Kim escreveu:
From: Namhyung Kim
Current trace info data lacks the saved cmdline mapping which is
needed for pevent to find out the comm of a task. Add this and bump
up the
On Tue, Jul 30, 2013 at 11:22:31AM +0200, Guennadi Liakhovetski wrote:
> Hi Simon
>
> On Tue, 30 Jul 2013, Simon Horman wrote:
>
> > [ Cc Vinod ]
> >
> > On Tue, Jul 23, 2013 at 11:12:41PM -0700, Kuninori Morimoto wrote:
> > > sh_desc->hw.tcr is controlling real data size,
> > > and, register
On Sat, 2013-07-27 at 12:16 -0700, Steve Hodgson wrote:
> This patch fixes ftrace across module removal/reinsertion on our 3.6.11
> kernel.
I found a few corner cases that this patch doesn't work with, and the
solution is just getting uglier and uglier.
I found a new solution that seems to
On Tuesday, July 30, 2013 10:57 PM, Greg Kroah-Hartman wrote:
> On Tue, Jul 30, 2013 at 06:20:47PM +0900, Jingoo Han wrote:
> > Add the wrapper function for retrieving device tree node instead of
> > accessing dev->of_node directly.
>
> Why?
Sorry, I cannot find the special reason why it should
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