Hi all,
this series adds multiqueue support to the virtio-scsi driver, based
on Jason Wang's work on virtio-net. It uses a simple queue steering
algorithm that expects one queue per CPU. LUNs in the same target always
use the same queue (so that commands are not reordered); queue switching
From: Jason Wang jasow...@redhat.com
Instead of storing the queue index in transport-specific virtio structs,
this patch moves them to vring_virtqueue and introduces an helper to get
the value. This lets drivers simplify their management and tracing of
virtqueues.
Signed-off-by: Jason Wang
From: Jason Wang jasow...@redhat.com
Sometimes, virtio device need to configure irq affinity hint to maximize the
performance. Instead of just exposing the irq of a virtqueue, this patch
introduce an API to set the affinity for a virtqueue.
The api is best-effort, the affinity hint may not be
We will place the request virtqueues in the flexible array member.
Refining the virtqueue API would let us drop the sglist copy, at
which point the pointer-to-array-of-pointers can become a simple
pointer-to-array. It would both simplify the allocation and remove a
dereference in several hot
This will be needed soon in order to retrieve the per-target
struct.
Signed-off-by: Paolo Bonzini pbonz...@redhat.com
---
drivers/scsi/virtio_scsi.c | 17 +
1 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
This patch adds queue steering to virtio-scsi. When a target is sent
multiple requests, we always drive them to the same queue so that FIFO
processing order is kept. However, if a target was idle, we can choose
a queue arbitrarily. In this case the queue is chosen according to the
current VCPU,
* Sasha Levin (levinsasha...@gmail.com) wrote:
On 08/28/2012 12:11 PM, Mathieu Desnoyers wrote:
* Sasha Levin (levinsasha...@gmail.com) wrote:
On 08/25/2012 06:24 AM, Mathieu Desnoyers wrote:
* Tejun Heo (t...@kernel.org) wrote:
Hello,
On Sat, Aug 25, 2012 at 12:59:25AM +0200, Sasha
James,
here are three important bugfixes for virtio-scsi. All three have been
on the list for a while, I'm grouping them in this post to ease your
processing.
Two of them are also marked for stable branches.
Paolo
Paolo Bonzini (1):
virtio-scsi: fix LUNs greater than 255
Richard W.M. Jones
From: Richard W.M. Jones rjo...@redhat.com
The sg struct for events is used without being initialized. This
triggers a BUG_ON if CONFIG_DEBUG_SG is defined.
This was reported at https://bugzilla.redhat.com/show_bug.cgi?id=847548.
Signed-off-by: Richard W.M. Jones rjo...@redhat.com
Le 26/08/2012 19:47, Guenter Roeck a écrit :
On Thu, Aug 23, 2012 at 11:13:17AM -0700, Guenter Roeck wrote:
On Thu, Aug 23, 2012 at 05:32:12PM +0200, Christophe Leroy wrote:
Hello,
Hi Christophe,
Hi again,
[ ... ]
Hi Guenter,
- /* 3-wire link (shared SI/SO) for LM70 */
- if
As otg.h is containing lots of phy interface related
stuff, moving all phy interface related stuff to new
file named phy.h
Signed-off-by: Venu Byravarasu vbyravar...@nvidia.com
---
include/linux/usb/otg.h | 211 +
include/linux/usb/phy.h | 222
-Original Message-
From: Felipe Balbi [mailto:ba...@ti.com]
Sent: Tuesday, August 28, 2012 3:19 PM
To: Venu Byravarasu
Cc: ccr...@android.com; o...@lixom.net; swar...@wwwdotorg.org;
li...@arm.linux.org.uk; st...@rowland.harvard.edu;
gre...@linuxfoundation.org; ba...@ti.com;
On Saturday 25 August 2012 05:10 AM, Rabin Vincent wrote:
On Fri, Aug 24, 2012 at 11:22:05PM +0530, Laxman Dewangan wrote:
I tried to reproduce the issue but could not able to do this.
Can you please send me your board/dt files where you are porviding
platform data for regulator?
This will help
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will use indirect
descriptors even if we have plenty of space in the ring. This means that
we take a performance hit at all times due to the overhead of creating
indirect descriptors.
Instead, use it only after we're below a configurable
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will
use indirect descriptors and allocate them using a simple
kmalloc().
This patch adds a cache which will allow indirect buffers under
a configurable size to be allocated from that cache instead.
Signed-off-by: Sasha Levin
On Tue, 2012-08-28 at 10:38 +0200, Daniel Mack wrote:
gcc 4.6.3 complains about uninitialized variables in fs/fuse/control.c:
CC fs/fuse/control.o
fs/fuse/control.c: In function ‘fuse_conn_congestion_threshold_write’:
fs/fuse/control.c:165:29: warning: ‘val’ may be used uninitialized
From: Wei Yongjun yongjun_...@trendmicro.com.cn
Remove pointless conditional before kfree_skb().
Signed-off-by: Wei Yongjun yongjun_...@trendmicro.com.cn
---
drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git
From: Wei Yongjun yongjun_...@trendmicro.com.cn
Remove pointless conditional before kfree_skb().
Signed-off-by: Wei Yongjun yongjun_...@trendmicro.com.cn
---
drivers/staging/ozwpan/ozpd.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/staging/ozwpan/ozpd.c
From: Wei Yongjun yongjun_...@trendmicro.com.cn
Remove pointless conditional before kfree_skb().
Signed-off-by: Wei Yongjun yongjun_...@trendmicro.com.cn
---
kernel/audit.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/audit.c b/kernel/audit.c
index
On Tue, Aug 28, 2012 at 03:04:02PM +0200, Sasha Levin wrote:
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will use indirect
descriptors even if we have plenty of space in the ring. This means that
we take a performance hit at all times due to the overhead of creating
indirect
On Tue, Aug 28, 2012 at 03:04:03PM +0200, Sasha Levin wrote:
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will
use indirect descriptors and allocate them using a simple
kmalloc().
This patch adds a cache which will allow indirect buffers under
a configurable size to be allocated
In this resubmission of the patchset, several suggestions from Andrew
Morton have been incorporated to clean up the changes. I will not be
able to be very responsive during the first part of September, so the
sooner you can provide feedback, the better.
These patches go a long way to updating
This patch adds the ability to work with large packets composed of a
number of segments, using the scatter gather feature of the block
layer (biovecs) and the network layer (skb frag array). The
motivation is the performance gained by using a packet data payload
greater than a page size and by
This patch makes the frames the aoe driver uses to track the
relationship between bios and packets more flexible and detached, so
that they can be passed to an aoe_ktio thread for completion of I/O.
The frames are handled much like skbs, with a capped amount of
preallocation so that real-world
To allow users to choose an elevator algorithm for their particular
workloads, change from a make_request-style driver to an
I/O-request-queue-handler-style driver.
We have to do a couple of things that might be surprising. We
manipulate the page _count directly on the assumption that we still
The dev_queue_xmit function needs to have interrupts enabled, so the
most simple way to get the locking right but still fulfill that
requirement is to use a process that can call dev_queue_xmit serially
over queued transmissions.
Signed-off-by: Ed Cashin ecas...@coraid.com
---
Users with several network interfaces dedicated to AoE generally do
not configure them to support different-sized AoE data payloads on
purpose.
For a given AoE target, there will be a set of local network
interfaces that can reach it. Using only the payload that will fit in
the smallest-sized
The aoe_deadsecs module parameter allows the user to specify a hard
limit on the number of seconds an AoE command can be retransmitted
before the AoE block device is considered to have failed.
Using aoe_deadsecs to determine the time we try using a different
remote interface helps to ensure that
On 08/28/2012 03:20 PM, Michael S. Tsirkin wrote:
On Tue, Aug 28, 2012 at 03:04:03PM +0200, Sasha Levin wrote:
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will
use indirect descriptors and allocate them using a simple
kmalloc().
This patch adds a cache which will allow indirect
The discovery process begins with an optional AoE config query command
and an AoE config query response. Normally when an aoe device is
already open, the config query response does not trigger an ATA
identify device command to be sent out, since the response contains
storage capacity information
A guard is inserted to prevent AoE minor addresses (slot addresses)
higher than 15 to be used, as they are not yet supported by the
driver.
There is a change coming that will allow the aoe driver to overcome
this limit by using system device minor numbers dynamically, but until
then, this guard
In the driver code, target and aoetgt refer to a particular remote
interface on the AoE storage target. The latter is identified by its
AoE major and minor addresses. Commands that are being sent to an AoE
storage target {major, minor} can be sent or retransmitted to any of
the remote MAC
This change eliminates the danger that the user could rmmod the driver
for a network interface that is being used for AoE by the aoe driver.
Signed-off-by: Ed Cashin ecas...@coraid.com
---
drivers/block/aoe/aoecmd.c |4
drivers/block/aoe/aoedev.c |7 +++
2 files changed, 11
This change removes some unused code and attempts to increase code
consistency.
Signed-off-by: Ed Cashin ecas...@coraid.com
---
drivers/block/aoe/aoe.h| 10 +++---
drivers/block/aoe/aoechr.c |1 +
drivers/block/aoe/aoecmd.c | 13 -
drivers/block/aoe/aoenet.c |3
The internal version number of the aoe driver appears in a console
message when the driver loads and is usually obtained by the user with
the userland aoe-version tool, part of the aoetools.[1]
Although this patchset includes bugfixes backported from
higher-numbered versions published on the
Signed-off-by: Ed Cashin ecas...@coraid.com
---
drivers/block/aoe/aoe.h |2 +-
drivers/block/aoe/aoeblk.c |2 +-
drivers/block/aoe/aoechr.c |2 +-
drivers/block/aoe/aoecmd.c |2 +-
drivers/block/aoe/aoedev.c |2 +-
drivers/block/aoe/aoemain.c |2 +-
The old area has a new URL. Also, now that the driver can perform
better, it is worth mentioning the VM settings that help aoe to sink
dirty pages out early, avoiding unecessary memory pressure when much
I/O is going on.
Signed-off-by: Ed Cashin ecas...@coraid.com
---
Documentation/aoe/aoe.txt
On Tue, Aug 28, 2012 at 12:57:09PM +0600, Rakib Mullick wrote:
Hello Paul,
On 8/28/12, Paul E. McKenney paul...@linux.vnet.ibm.com wrote:
On Mon, Aug 20, 2012 at 09:26:57AM -0700, Paul E. McKenney wrote:
On Mon, Aug 20, 2012 at 11:26:57AM +0200, Peter Zijlstra wrote:
How about the
Kees Cook keesc...@chromium.org writes:
This config item has not carried much meaning for a while now and is
almost always enabled by default. Remove it and adjust various config
logic and documentation.
Acked-by: Rusty Russell ru...@rustcorp.com.au (lguest part)
Cheers,
Rusty.
--
To
Hi,
On Tue, Aug 28, 2012 at 05:50:11PM +0530, Venu Byravarasu wrote:
As otg.h is containing lots of phy interface related
stuff, moving all phy interface related stuff to new
file named phy.h
Signed-off-by: Venu Byravarasu vbyravar...@nvidia.com
this should be ok.. I'll apply it once
This is a Chinese translated version of Documentation/gpio.txt
Signed-off-by: Fu Wei tekkamanni...@gmail.com
---
Documentation/zh_CN/gpio.txt | 662 ++
1 file changed, 662 insertions(+)
create mode 100644 Documentation/zh_CN/gpio.txt
diff --git
I wonder if we are preventing scsi_device_dev_release_usercontext() from
making forward progress?
...the attached patch should confirm this or give more info otherwise.
[ 148.960318] console [netcon0] enabled
[ 148.960363] netconsole: network logging started
[ 170.415487] mptbase: ioc0:
Because I had not done any size profiling since the original RFC
posting, I took 20 min and ported the patch set up to the 3.6-rc3 and
booted the kernel in each configuration. There are still probably a
few use cases where this patch set might be useful but the general
sentiment seemed that this
On 08/28/2012 01:54 PM, Paolo Bonzini wrote:
We will place the request virtqueues in the flexible array member.
Refining the virtqueue API would let us drop the sglist copy, at
which point the pointer-to-array-of-pointers can become a simple
pointer-to-array. It would both simplify the
On 08/28/2012 02:32 AM, Venu Byravarasu wrote:
In order to keep up with the USB driver files organization,
moving USB phy driver from mach-tegra to drivers/USB directory.
Signed-off-by: Venu Byravarasu vbyravar...@nvidia.com
diff --git a/arch/arm/mach-tegra/devices.c
On Mon, Aug 27, 2012 at 5:53 PM, Kees Cook keesc...@chromium.org wrote:
This config item has not carried much meaning for a while now and is
almost always enabled by default. Remove it and adjust various config
logic and documentation.
It does have meaning... !CONFIG_EXPERIMENTAL means more
On 08/28/2012 03:29 AM, Laxman Dewangan wrote:
Register all TPS6586x regulators even if there is no regulator
init data for platform i.e. without any user-supplied constraints.
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
@@ -396,19 +396,19 @@ static struct
Il 28/08/2012 16:07, Sasha Levin ha scritto:
- num_targets = sh-max_id;
- for (i = 0; i num_targets; i++) {
- kfree(vscsi-tgt[i]);
- vscsi-tgt[i] = NULL;
+ if (vscsi-tgt) {
+ num_targets = sh-max_id;
+ for (i = 0; i num_targets; i++) {
+
This is a Chinese translated version of Documentation/arm/Booting
Signed-off-by: Fu Wei tekkamanni...@gmail.com
---
diff --git a/Documentation/zh_CN/arm/Booting b/Documentation/zh_CN/arm/Booting
new file mode 100644
index 000..e0b1673
--- /dev/null
+++ b/Documentation/zh_CN/arm/Booting
@@
On Tue, 28 Aug 2012, Richard W.M. Jones wrote:
On Wed, Aug 22, 2012 at 09:56:12PM -0700, Hugh Dickins wrote:
[PATCH] block: replace __getblk_slow misfix by grow_dev_page fix
I noticed this (second version) went upstream already. Nevertheless I
tested it today and it doesn't cause a
看了几封中文文档翻译的 patch，觉得很不错！
如果中文和英文、数字之间能有个半角空格就更好了，无论是美观度、可读性还是超链都不会有问题。
发自我的 iPod
在 2012-8-28，7:29，Ninja Tekkaman tekkamanni...@gmail.com 写道：
This is a Chinese translated version of Documentation/arm/Booting
Signed-off-by: Fu Wei tekkamanni...@gmail.com
---
diff --git
If state is NON_BLOCKING and mutex_trylock is succeed,
the control flow goes to mutex_lock_interruptible() that is a deadlock.
The previous version of the patch becomes obsolete after
code movement in commit 913809f6.
Found by Linux Driver Verification project (linuxtesting.org).
On Mon, Aug 27, 2012 at 01:32:15PM -0700, Kees Cook wrote:
Since the debugfs is mostly only used by root, make the default mount
mode 0700. Most system owners do not need a more permissive value,
but they can choose to weaken the restrictions via their fstab.
Signed-off-by: Kees Cook
On Tue, Aug 28, 2012 at 02:09:00PM +0200, leroy christophe wrote:
Le 26/08/2012 19:47, Guenter Roeck a écrit :
On Thu, Aug 23, 2012 at 11:13:17AM -0700, Guenter Roeck wrote:
On Thu, Aug 23, 2012 at 05:32:12PM +0200, Christophe Leroy wrote:
Hello,
Hi Christophe,
Hi again,
[ ... ]
Hi
On Tue, 2012-08-28 at 10:41 -0400, Theodore Ts'o wrote:
On Mon, Aug 27, 2012 at 01:32:15PM -0700, Kees Cook wrote:
Since the debugfs is mostly only used by root, make the default mount
mode 0700. Most system owners do not need a more permissive value,
but they can choose to weaken the
On Tue, Aug 28, 2012 at 07:55:58AM -0700, Ben Hutchings wrote:
The problems are apparently larger than specific modules:
http://lists.linux-foundation.org/pipermail/ksummit-2012-discuss/2012-July/000894.html
Sure, but most of those problems require root access, or physical
access to the
On Tuesday 28 August 2012 07:48 PM, Stephen Warren wrote:
- if ((devs[j].id == TPS6586X_ID_LDO_5) ||
- (devs[j].id == TPS6586X_ID_LDO_RTC))
- reg_idata-supply_regulator = sys_rail_name;
+ if
On Mon, 27 Aug 2012 14:38:35 Mark Brown wrote:
On Mon, Aug 27, 2012 at 11:28:30PM +0200, Janusz Krzysztofik wrote:
- platform_set_drvdata(ams_delta_audio_platform_device,
- ams_delta_audio_card);
-
- ret =
Ping!
No X for me with 3.6-rc2.
On Wed, Jul 18, 2012 at 12:14 AM, Alexey Dobriyan adobri...@gmail.com wrote:
FB console is OK, when switching to VT7, there is no KDM prompt.
Instead looping messages appear:
Failed to idle channel 1
0x2634 != chid: 0x0011
PFIFO:
2012/8/28 Ninja Tekkaman tekkamanni...@gmail.com:
This is a Chinese translated version of Documentation/gpio.txt
Signed-off-by: Fu Wei tekkamanni...@gmail.com
Acked-by: Harry Wei harryxi...@gmail.com
--
Thanks
Harry Wei
--
To unsubscribe from this list: send the line unsubscribe
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
2012/8/28 PT plati...@163.com:
看了几封中文文档翻译的 patch，觉得很不错！
如果中文和英文、数字之间能有个半角空格就更好了，
无论是美观度、可读性还是超链都不会有问题。
Hi PT,
We will take actions as you said later, thanks for your sincerely suggestions.
--
Thanks
Harry Wei
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus =
I am often hitting this BUG on an OCFS2 volume shared among 6 machines.
Not only does this bug cause the kernel panic on the machine it occurs
on, but when it happens it block access to that volume from the other
machines connected to it until the problem machine is rebooted. The
machine it
2012/8/28 Laxman Dewangan ldewan...@nvidia.com:
I tried to reproduce the lockup issue with the following change but not
seeing any lockup issue.
Did you enable CONFIG_PROVE_LOCKING?
Also reviewing the change, I am not seeing any call trace where the
recursive locking happening.
There's
On Mon, Aug 27, 2012 at 04:47:13PM -0300, Rafael Aquini wrote:
On Sun, Aug 26, 2012 at 10:42:44AM +0300, Michael S. Tsirkin wrote:
Reading two atomics and doing math? Result can even be negative.
I did not look at use closely but it looks suspicious.
Doc on atomic_read says:
The read
Avi Kivity a...@redhat.com writes:
On 08/27/2012 02:27 PM, Michael Wolf wrote:
On Mon, 2012-08-27 at 13:31 -0700, Avi Kivity wrote:
On 08/27/2012 01:23 PM, Michael Wolf wrote:
How would a guest know what its entitlement is?
Currently the Admin/management tool setting
On Fri, Aug 24, 2012 at 09:54:04PM -0700, Yinghai Lu wrote:
On Fri, Aug 24, 2012 at 9:24 PM, Jacob Shin jacob.s...@amd.com wrote:
On Fri, Aug 24, 2012 at 06:07:01PM -0700, Yinghai Lu wrote:
On Fri, Aug 24, 2012 at 4:55 PM, Jacob Shin jacob.s...@amd.com wrote:
looks like you could avoid
Hi Guenter,
On Fri, 24 Aug 2012 17:53:17 -0700, Guenter Roeck wrote:
DIV_ROUND_CLOSEST returns a bad result for negative dividends:
DIV_ROUND_CLOSEST(-2, 2) = 0
Most of the time this does not matter. However, in the hardware monitoring
subsystem, it is often used on integers which can
On Tue, Jun 26, 2012 at 3:07 PM, Yinghai Lu ying...@kernel.org wrote:
On Tue, Jun 26, 2012 at 11:53 AM, Yinghai Lu ying...@kernel.org wrote:
It is changed from busn_res only version, because Bjorn found that version
was not holding resource_lock.
Even it may be ok for busn_res not holding
The EFI runtime code we need to map, but we shouldn't use as RAM. I suspect
this is also true for the ACPI areas.
Jacob Shin jacob.s...@amd.com wrote:
On Fri, Aug 24, 2012 at 09:54:04PM -0700, Yinghai Lu wrote:
On Fri, Aug 24, 2012 at 9:24 PM, Jacob Shin jacob.s...@amd.com
wrote:
On Fri,
On Tue, 2012-08-28 at 10:03 -0400, John Drescher wrote:
I wonder if we are preventing scsi_device_dev_release_usercontext() from
making forward progress?
...the attached patch should confirm this or give more info otherwise.
[ 174.758218] scsi_remove_target[0]: reap 0:0 state: 2
Hello,
On Mon, Aug 27, 2012 at 09:05:25AM -0400, Aristeu Rozanski wrote:
Hi Tejun,
On Fri, Aug 24, 2012 at 03:58:39PM -0700, Tejun Heo wrote:
On Thu, Aug 23, 2012 at 04:53:27PM -0400, a...@redhat.com wrote:
This series are a refreshed version of a patchset submitted by Li Zefan
back
On Tue, Aug 28, 2012 at 06:09:26PM +0200, Jean Delvare wrote:
Hi Guenter,
On Fri, 24 Aug 2012 17:53:17 -0700, Guenter Roeck wrote:
DIV_ROUND_CLOSEST returns a bad result for negative dividends:
DIV_ROUND_CLOSEST(-2, 2) = 0
Most of the time this does not matter. However, in the
On Tue, Aug 28, 2012 at 12:17:43PM +0300, Jussi Kivilinna wrote:
With this patch twofish-avx is faster than twofish-3way for 256, 1k
and 8k tests.
sizeold-vs-new new-vs-3way old-vs-3way
ecb-enc ecb-dec ecb-enc ecb-dec ecb-enc ecb-dec
256 1.10x 1.11x 1.01x
On Mon, Aug 27, 2012 at 05:28:35PM -0300, Rafael Aquini wrote:
On Sun, Aug 26, 2012 at 10:55:58AM +0300, Michael S. Tsirkin wrote:
On Sat, Aug 25, 2012 at 02:24:56AM -0300, Rafael Aquini wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB
On Fri, 2012-08-24 at 20:56 +0200, Oleg Nesterov wrote:
Peter, if you think it can work for you and if you agree with
the implementation I will be happy to send the patch.
Yeah I think it would work, but I'm not sure why you're introducing the
cmp_xchg helper just for this..
Anyway, how
DIV_ROUND_CLOSEST returns a bad result for negative dividends:
DIV_ROUND_CLOSEST(-2, 2) = 0
Most of the time this does not matter. However, in the hardware monitoring
subsystem, it is sometimes used on integers which can be negative (such as
temperatures). Introduce new macro
DIV_ROUND_CLOSEST returns bad values for negative dividends.
Replace with IDIV_ROUND_CLOSEST where this can happen.
Cc: Jean Delvare kh...@linux-fr.org
Cc: Dirk Eibach eib...@gdsys.de
Cc: Steve Glendinning steve.glendinn...@shawell.net
Signed-off-by: Guenter Roeck li...@roeck-us.net
---
On Sun, 2012-08-26 at 10:52 -0700, Arun Sharma wrote:
On 8/26/12 9:10 AM, Peter Zijlstra wrote:
On Fri, 2012-08-24 at 15:13 -0700, Arun Sharma wrote:
One option is to support
this for user mode only, with code to detect signal frames. Any other
ideas?
I guess we'd need to see what
[ 174.758218] scsi_remove_target[0]: reap 0:0 state: 2 reap: 1 dev_del: 1
Thanks! Does the attached patch fix the issue for you?
That worked!
[ 169.402990] netconsole: network logging started
[ 200.903700] mptbase: ioc0: LogInfo(0x31110d00): Originator={PL},
Code={Reset}, SubCode(0x0d00)
On 08/28/2012 04:13 AM, Wei Ni wrote:
On Tue, 2012-08-28 at 04:06 +0800, Stephen Warren wrote:
On 08/27/2012 09:24 AM, Arend van Spriel wrote:
On 08/27/2012 12:25 PM, Wei Ni wrote:
In case of inband interrupts, if we handle the interrupt in dpc thread,
two level of thread switching takes
On Tue, Aug 28, 2012 at 12:50:10PM +0300, Tero Kristo wrote:
On Tue, 2012-08-14 at 17:22 +0300, Peter Ujfalusi wrote:
Signed-off-by: Peter Ujfalusi peter.ujfal...@ti.com
I think this one could use a short commit message, also about why
kfree():s are dropped (handled internally by devm_*
On Tue, Aug 28, 2012 at 01:47:38PM +0200, Graeme Gregory wrote:
Add device tree handling to the palmas MFD. This takes the values
that can be set from platform data from the device tree nodes instead.
Signed-off-by: Graeme Gregory g...@slimlogic.co.uk
---
drivers/mfd/palmas.c | 52
Hello,
On 8/28/2012 7:13 AM, Hiroshi Doyu wrote:
The commit e9da6e9 ARM: dma-mapping: remove custom consistent dma
region breaks the compatibility with existing drivers. This causes
the following kernel oops(*1). That driver has called dma_pool_alloc()
to allocate memory from the interrupt
On 8/28/12, Paul E. McKenney paul...@linux.vnet.ibm.com wrote:
On Tue, Aug 28, 2012 at 12:57:09PM +0600, Rakib Mullick wrote:
Hello Paul,
On 8/28/12, Paul E. McKenney paul...@linux.vnet.ibm.com wrote:
On Mon, Aug 20, 2012 at 09:26:57AM -0700, Paul E. McKenney wrote:
On Mon, Aug 20, 2012 at
On 8/22/2012 3:27 PM, Arnd Bergmann wrote:
On tile, the PER_LINUX_32BIT is always set for 32 bit compat tasks in a
64 bit kernel, which is harmless but wrong anyway. Also this, tile never
calls set_personality, which is also harmless because it just means that
exec_domain switching on tile is
The following changes since commit 28a33cbc24e4256c143dce96c7d93bf423229f92:
Linux 3.5 (2012-07-21 13:58:29 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git
tags/msm-fix-for3.6
for you to fetch changes up to
v1: differences from v0 are,
* check syncfs() in configure script
* send SD_OP_FLUSH_PEER to all sheeps
This patch implements writeback cache semantics in backend store of
sheep. Current backend store farm and plain calls open() with
O_DSYNC, so every object write causes slow disk access. This
Really sorry, I mistakenly sent below patch to LKML.
Please discard this...
On Wed, Aug 29, 2012 at 1:56 AM, Hitoshi Mitake h.mit...@gmail.com wrote:
v1: differences from v0 are,
* check syncfs() in configure script
* send SD_OP_FLUSH_PEER to all sheeps
This patch implements writeback cache
On 08/28, Peter Zijlstra wrote:
On Fri, 2012-08-24 at 20:56 +0200, Oleg Nesterov wrote:
Peter, if you think it can work for you and if you agree with
the implementation I will be happy to send the patch.
Yeah I think it would work, but I'm not sure why you're introducing the
cmp_xchg
On Tue, Aug 28, 2012 at 11:43:58PM +0800, Jiang Liu wrote:
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also
On Tue, Aug 28, 2012 at 9:09 AM, Yinghai Lu ying...@kernel.org wrote:
please check update one. -v7
Ugh. Ok, looking closer at this, I think I agree with Bjorn. This is too ugly.
The whole reduce size/needed_size by 1 double loop is O(n**2). And
it does ugly insert fake resource to check, and
On Tue, Aug 28, 2012 at 01:09:10PM +0200, Gaëtan Carlier wrote:
Signed-off-by: Gaëtan Carlier gcem...@gmail.com
Applied, thanks.
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at
On Tue, Aug 28, 2012 at 10:41:10AM -0400, Theodore Ts'o wrote:
On Mon, Aug 27, 2012 at 01:32:15PM -0700, Kees Cook wrote:
Since the debugfs is mostly only used by root, make the default mount
mode 0700. Most system owners do not need a more permissive value,
but they can choose to weaken
On 08/28, Oleg Nesterov wrote:
On 08/28, Peter Zijlstra wrote:
+again:
+ workp = task-task_works;
+ work = *workp;
+ while (work) {
+ if (work-func == func) {
But you can't dereference this pointer. Without some locking this
can race with another task_work_cancel()
1 - 100 of 722 matches
Mail list logo
