Re: [PATCH v2 4/4] serial: samsung: Fix UART status handling in DMA mode

On 11.09.2015 15:32, Robert Baldyga wrote: > On 09/11/2015 08:07 AM, Krzysztof Kozlowski wrote: >> On 10.09.2015 22:41, Robert Baldyga wrote: >>> This patch fixes UART status handling in DMA mode. >> >> I don't see any changes here. You did not respond to my comment neither. >> >> Code looks

Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support

Hello Krzysztof, On 09/11/2015 07:01 AM, Krzysztof Kozlowski wrote: > On 10.09.2015 22:42, Javier Martinez Canillas wrote: >> The simplefb driver allows the kernel to render on a pre-allocated >> buffer that's been initialized by firmware before the kernel boots. >> >> This option was enabled to

[PATCH 3/7] f2fs: verify file type early in f2fs_fallocate

This patch changes to verify file type early in f2fs_fallocate for cleanup, meanwhile this also fixes to add missing verification for expand_inode_data. Signed-off-by: Chao Yu --- fs/f2fs/file.c | 16 1 file changed, 4 insertions(+), 12 deletions(-) diff

[PATCH 4/7] f2fs: readahead cp payload pages when mount

Readahead continuous payload pages in checkpoint area for better performance. Signed-off-by: Chao Yu --- fs/f2fs/checkpoint.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index c5a38e3..7c1b297 100644 ---

Re: [PATCH-v2 1/2] mpt3sas: Refcount sas_device objects and fix unsafe list usage

On Wed, 2015-09-09 at 15:03 -0700, Nicholas A. Bellinger wrote: > On Wed, 2015-09-09 at 19:59 +0530, Chaitra Basappa wrote: > > From: Sreekanth Reddy [mailto:sreekanth.re...@avagotech.com] > > Sent: Tuesday, September 08, 2015 5:26 PM > > To: Nicholas A. Bellinger > > Cc: linux-scsi; linux-kernel;

Re: [PATCH 2/3] net: irda: pxaficp_ir: convert to readl and writel

Petr Cvek writes: >> Should have been posted to linux arm kernel mailing list, unless my mailer >> failed ... >> > Searching for: > > "ARM: pxa: add resources to pxaficp_ir" > > did not found anything, same was for "ficp" in the > linux-arm-kernel/netdev/linux-kernel >

[PATCH 1/7] f2fs: reorganize f2fs_map_blocks

In this patch, we try to reorganize f2fs_map_blocks to make block mapping flow more clear by using following structure: /* check status of mapping */ if (unmapped) { /* blkaddr == NULL_ADDR || blkaddr == NEW_ADDR */ if (create) { /* write path, handle dio write

Re: [PATCH v2 1/1] ARM: dts: sun7i: Enable axp209 driver on olinuxino lime2

Hey chen, On September 11, 2015 4:57:03 AM CEST, Chen-Yu Tsai wrote: >On Fri, Sep 11, 2015 at 2:13 AM, Maxime Ripard > wrote: >> Hi Oliver, >> >> On Wed, Sep 09, 2015 at 03:26:44PM +0200, Olliver Schinagl wrote: >>> The Olimex OLinuXino Lime2 uses

[PATCH 2/7] f2fs: do in batches truncation in truncate_hole

truncate_data_blocks_range can do in batches truncation which makes all changes in dnode page content, dnode page status, extent cache, block count updating together. But previously, truncate_hole() always truncates one block in dnode page at a time by invoking truncate_data_blocks_range(,1),

[PATCH 5/7] f2fs: enhance multithread dio write performance

When dio writes perform concurrently, our performace will be low because of Thread A's allocation of multi continuous blocks will be break by Thread B, there are two cases as below: - In Thread B, we may change current segment to a new segment for LFS allocation if we dio write in the

Re: [PATCH v2 4/4] serial: samsung: Fix UART status handling in DMA mode

On 10.09.2015 22:41, Robert Baldyga wrote: > This patch fixes UART status handling in DMA mode. I don't see any changes here. You did not respond to my comment neither. Code looks itself good... except a locking issue but I don't know what's the cause. It may be not related to the patchset and

Re: [PATCH v2 4/4] serial: samsung: Fix UART status handling in DMA mode

On 09/11/2015 08:34 AM, Krzysztof Kozlowski wrote: > On 11.09.2015 15:32, Robert Baldyga wrote: >> On 09/11/2015 08:07 AM, Krzysztof Kozlowski wrote: >>> On 10.09.2015 22:41, Robert Baldyga wrote: This patch fixes UART status handling in DMA mode. >>> >>> I don't see any changes here. You did

[PATCH 7/7] f2fs: fix overflow of size calculation

We have potential overflow issue when calculating size of object, when we left shift index with PAGE_CACHE_SHIFT bits, if type of index has only 32-bits space in 32-bit architecture, left shifting will incur overflow, i.e: pgoff_t index = 0x; loff_t size = index << PAGE_CACHE_SHIFT;

[PATCH 6/7] f2fs: fix incorrect searching position when shrinking extent cache

When shrinking extent cache, we have two steps in the flow: 1) shrink objects which are unreferenced by inodes; 2) shrink objects from LRU list of extent cache. In step 1, if we haven't shrunk enough number of objects, we will try step 2, but before that we didn't update the searching position

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Re: [PATCH v2] ARM: rockchip: add reboot notifier

在 2015年09月11日 11:40, Andy Yan 写道: Hi Eddie: On 2015年09月11日 10:01, Eddie Cai wrote: Hi Andy 2015-09-10 19:04 GMT+08:00 Andy Yan : rockchip platform have a protocol to pass the kernel reboot mode to bootloader by some special registers when system reboot. By this way

[PATCH 1/2] dma: Add Freescale qDMA engine driver support

Add Freescale Queue Direct Memory Access(qDMA) controller support. This module can be found on LS-1 and LS-2 SoCs. This add the legacy mode support for qDMA. Signed-off-by: Yuan Yao --- Documentation/devicetree/bindings/dma/fsl-qdma.txt | 43 ++ MAINTAINERS

[PATCH 2/2] dma: dts: Add Freescale qDMA engine driver support

Add Freescale Queue Direct Memory Access(qDMA) controller support. This module can be found on LS-1 and LS-2 SoCs. This add the legacy mode support for qDMA. Signed-off-by: Yuan Yao --- arch/arm/boot/dts/ls1021a.dtsi | 10 ++ 1 file changed, 10 insertions(+)

Re: [PATCH 5/5] virtgpu: mark as a render gpu

On 11 September 2015 at 01:04, Emil Velikov wrote: > On 10 September 2015 at 15:52, Gerd Hoffmann wrote: >> Hi, >> >>> > Dave? Looking at the ioctls they are all fine for render nodes, there >>> > isn't anything modesetting related in the

Re: [PATCH v2 4/4] serial: samsung: Fix UART status handling in DMA mode

On 09/11/2015 08:07 AM, Krzysztof Kozlowski wrote: > On 10.09.2015 22:41, Robert Baldyga wrote: >> This patch fixes UART status handling in DMA mode. > > I don't see any changes here. You did not respond to my comment neither. > > Code looks itself good... except a locking issue but I don't know

RE: [PATCH] PM / devfreq: Fix incorrect type issue.

> > > > time_in_state in struct devfreq is defined as unsigned long, so > > devm_kzalloc should use sizeof(unsigned long) as argument instead of > > sizeof(unsigned int), otherwise it will cause unexpected result in > > 64bit system. > > > > Signed-off-by: Xiaolong Ye > >

[PATCH v2 02/16] Staging: speakup: devsynth.c: Remove explicit NULL comparison

Remove explicit NULL comparison and write it in its simpler form. Replacement done with coccinelle: @replace_rule@ expression e; @@ -e == NULL + !e Signed-off-by: Shraddha Barke --- Change in v2- No change drivers/staging/speakup/devsynth.c | 4 ++-- 1 file changed,

[PATCH v2 04/16] Staging: speakup: kobjects.c: Remove explicit NULL comparison

Remove explicit NULL comparison and write it in its simpler form. Replacement done with coccinelle: @replace_rule@ expression e; @@ -e == NULL + !e Signed-off-by: Shraddha Barke --- Change in v2- No change drivers/staging/speakup/kobjects.c | 16 1

[PATCH v2 03/16] Staging: speakup: serialio.c: Remove explicit NULL comparison

Remove explicit NULL comparison and write it in its simpler form. Replacement done with coccinelle: @replace_rule@ expression e; @@ -e == NULL + !e Signed-off-by: Shraddha Barke --- Change in v2- No change drivers/staging/speakup/serialio.c | 4 ++-- 1 file changed,

[PATCH v2 01/16] Staging: speakup: varhandlers.c: Remove explicit NULL comparison

Remove explicit NULL comparison and write it in its simpler form. Replacement done with coccinelle: @replace_rule@ expression e; @@ -e == NULL + !e Signed-off-by: Shraddha Barke --- Change in v2- Considering cases with != NULL also

Re: [PATCH v2 3/4] serial: samsung: introduce s3c24xx_serial_rx_drain_fifo() function

On 10.09.2015 22:41, Robert Baldyga wrote: > This patch introduces s3c24xx_serial_rx_drain_fifo() which reads data > from RX FIFO and writes it to tty buffer. It also checks for special > conditions (such as 'break') and handles it. This function has been > separated from

[PATCH RFC v3 2/6] perf: Use extended syscall error reporting

This patch makes use of the extended syscall error reporting infrastructure to relay error messages that result from perf_event_open() attribute validation. On top of the default error report bits, it also transfers the name of the attribute field that triggered the error. Signed-off-by:

[PATCH RFC v3 0/6] Introduce extended syscall error reporting

Hi Ingo, Peter and everybody, This is another stab at the error reporting problem. I've been sitting on this code for a couple of weeks now for no good reason, so I figured I'd just put it out there and see where we go next. This time around, the error reporting itself is a separate

Re: Regression: Disk corruption with dm-crypt and kernels >= 4.0

Hi, Could you please try the following patch (against any of the kernels you saw the corruption with. be it 4.0, 4.1, 4.2) to see if the regression you reported goes away? Thanks, Mike From: Mike Snitzer Date: Wed, 9 Sep 2015 21:34:51 -0400 Subject: [PATCH] dm crypt:

Re: [PATCH] cpufreq: pass policy to ->get() driver callback

On 10-09-15, 23:36, Rafael J. Wysocki wrote: > BTW, I wonder how much of the stuff in cpufreq.h can be moved to a local > header > under drivers/cpufreq/. It looks like the majority of it is not used by > anybody else. Okay, will check that out and do some cleanup. > --- > From: Rafael J.

Re: [LINUX RFC v2 1/4] spi: add support of two chip selects & data stripe

Hi Mark, On Fri, Sep 11, 2015 at 6:06 PM, Mark Brown wrote: > On Fri, Sep 04, 2015 at 12:02:21PM +, Ranjit Abhimanyu Waghmode wrote: > > Please fix your mail client to word wrap within paragraphs and to quote > text without reflowing it - your messages are very hard to

Re: [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters

> >> Considering that the EFI support is just for Dom0, and Dom0 (at > >> the time) had to be PV anyway, it was the more natural solution to > >> expose the interface via hypercalls, the more that this allows better > >> control over what is and primarily what is not being exposed to > >> Dom0.

Re: [PATCH 4/6] sched/fair: Name utilization related data and functions consistently

On 04/09/15 10:08, Vincent Guittot wrote: > On 14 August 2015 at 18:23, Morten Rasmussen wrote: >> From: Dietmar Eggemann >> >> Use the advent of the per-entity load tracking rewrite to streamline the >> naming of utilization related data and

Re: [PATCH 5/6] sched/fair: Get rid of scaling utilization by capacity_orig

Morten Rasmussen writes: > On Fri, Sep 11, 2015 at 08:28:25AM +0800, Yuyang Du wrote: >> On Thu, Sep 10, 2015 at 12:07:27PM +0200, Peter Zijlstra wrote: >> > > > Still don't understand why it's a unit problem. IMHO LOAD/UTIL and >> > > > CAPACITY have no unit. >> > >

Re: [PATCH 0/2] nohz_full: Offload task_tick to remote housekeeping cpus for nohz_full cpus

> 1. If LB_BIAS is false for nohz_full CPUs. This will help us figure out if > rq->cpu_load > is read for them. lb_bias feature is not disabled for full dynticks. rq->cpu_load[] is never used for them. nohz_full cpus verify the condition on_null_domain(rq) > 2. When a cpu reports scheduling

Re: [Patch V1] x86, mce: CPU synchronization for broadcast MCE's is surprised by offline CPUs

Hi Boris On Fri, Sep 11, 2015 at 10:46:36AM +0200, Borislav Petkov wrote: > > One more buffer for MCEs? Why? > > We did add the mce_gen_pool thing exactly for logging stuff in atomic > context. From looking at the code, we probably could get rid of that > "struct mce_log mcelog" thing too and

Re: [PATCH v2 2/5] seccomp: make underlying bpf ref counted as well

On Fri, Sep 11, 2015 at 06:03:59PM +0200, Daniel Borkmann wrote: > On 09/11/2015 04:44 PM, Tycho Andersen wrote: > >On Fri, Sep 11, 2015 at 03:02:36PM +0200, Daniel Borkmann wrote: > >>On 09/11/2015 02:20 AM, Tycho Andersen wrote: > >>>In the next patch, we're going to add a way to access the

[PATCH] of: Check for overlap in reserved memory regions

Any overlap in the reserved memory regions (those specified in the reserved-memory DT node) is a bug. These bugs might go undetected as long as the contested region isn't used simultaneously by multiple software agents, which makes such bugs hard to debug. Fix this by printing a scary warning

Re: [PATCH 03/11] ARM: DT: STiH407: Add SPI 3 wire and 4 wire pinctrl configs

On Fri, 11 Sep 2015, Peter Griffin wrote: > This patch adds the spi pinctrl configurations for all SPI > controllers, and also the alternate muxings which > can be used depending on board design. > > Signed-off-by: Christophe Kerello > Signed-off-by: Peter Griffin

Re: [PATCH v2 7/9] ARM: STi: DT: STiH407: Add FDMA driver dt nodes.

Hi Lee, On Fri, 11 Sep 2015, Lee Jones wrote: > On Fri, 11 Sep 2015, Peter Griffin wrote: > > On Fri, 11 Sep 2015, Lee Jones wrote: > > > On Fri, 11 Sep 2015, Peter Griffin wrote: > > > > > > > These nodes are required to get the fdma driver working > > > > on STiH407 based silicon. > > > > >

[RFC PATCH] vfio/pci: Use kernel VPD access functions

The PCI VPD capability operates on a set of window registers in PCI config space. Writing to the address register triggers either a read or write, depending on the setting of the PCI_VPD_ADDR_F bit within the address register. The data register provides either the source for writes or the target

RE: Chipidea ULPI driver

Hi, > -Original Message- > From: Subbaraya Sundeep Bhatta > Sent: Friday, September 11, 2015 5:04 PM > To: 'Peter Chen'; Punnaiah Choudary Kalluri > Cc: ba...@ti.com; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; > Greg Kroah-Hartman (gre...@linuxfoundation.org); kis...@ti.com

Re: [PATCH 0/7] devcg: device cgroup extension for rdma resource

Hello, Parav. On Fri, Sep 11, 2015 at 09:56:31PM +0530, Parav Pandit wrote: > Resource run away by application can lead to (a) kernel and (b) other > applications left out with no resources situation. Yeap, that this controller would be able to prevent to a reasonable extent. > Both the

Re: [PATCH v2 4/5] seccomp: add a way to access filters via bpf fds

On Fri, Sep 11, 2015 at 09:20:55AM -0700, Andy Lutomirski wrote: > On Sep 10, 2015 5:22 PM, "Tycho Andersen" > wrote: > > > > This patch adds a way for a process that is "real root" to access the > > seccomp filters of another process. The process first does a > >

Re: [PATCH] Documentation: Remove misleading examples of the barriers in wake_*()

Hi Oleg, On Thu, Sep 10, 2015 at 07:55:57PM +0200, Oleg Nesterov wrote: > On 09/10, Boqun Feng wrote: > > > > On Wed, Sep 09, 2015 at 12:28:22PM -0700, Paul E. McKenney wrote: > > > My feeling is > > > that we should avoid saying too much about the internals of wait_event() > > > and wake_up(). >

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[PATCH v6 3/6] locking/pvqspinlock, x86: Optimize PV unlock code path

The unlock function in queued spinlocks was optimized for better performance on bare metal systems at the expense of virtualized guests. For x86-64 systems, the unlock call needs to go through a PV_CALLEE_SAVE_REGS_THUNK() which saves and restores 8 64-bit registers before calling the real

[PATCH v6 6/6] locking/pvqspinlock: Queue node adaptive spinning

In an overcommitted guest where some vCPUs have to be halted to make forward progress in other areas, it is highly likely that a vCPU later in the spinlock queue will be spinning while the ones earlier in the queue would have been halted. The spinning in the later vCPUs is then just a waste of

[PATCH v6 4/6] locking/pvqspinlock: Collect slowpath lock statistics

This patch enables the accumulation of kicking and waiting related PV qspinlock statistics when the new QUEUED_LOCK_STAT configuration option is selected. It also enables the collection of kicking and wakeup latencies which have a heavy dependency on the CPUs being used. The measured latencies

[PATCH v6 1/6] locking/qspinlock: relaxes cmpxchg & xchg ops in native code

This patch replaces the cmpxchg() and xchg() calls in the native qspinlock code with more relaxed versions of those calls to enable other architectures to adopt queued spinlocks with less performance overhead. Signed-off-by: Waiman Long --- arch/x86/include/asm/qspinlock.h

[PATCH RFC v3 4/6] perf tools: Add a simple JSON parser

In order to process kernel's extended syscall error reports, we need a JSON parser. This one I wrote myself, it should be very simple and straightforward and extensible when/if somebody needs more features from it. Signed-off-by: Alexander Shishkin ---

[PATCH 0/1] rcu_sync: Cleanup the CONFIG_PROVE_RCU checks

On 09/10, Paul E. McKenney wrote: > > On Thu, Sep 10, 2015 at 03:59:42PM +0200, Oleg Nesterov wrote: > > On 09/09, Paul E. McKenney wrote: > > > > > > This is obsolete, but its replacement is the same patch. > > > > fbe3b97183f84155d81e506b1aa7d2ce986f7a36 in linux-rcu.git#experimental > > I

[PATCH RFC v3 1/6] exterr: Introduce extended syscall error reporting

It has been pointed out several times that certain system calls' error reporting leaves a lot to be desired [1], [2]. Such system calls would take complex parameter structures as their input and return -EINVAL if one or more parameters are invalid or in conflict leaving it up to the user to figure

[PATCH RFC v3 6/6] perf tools: Use extended syscall error reporting

If the kernel has an extended error report for us, use it instead of trying to guess what might have gone wrong. Signed-off-by: Alexander Shishkin --- tools/perf/util/evsel.c | 12 +++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git

[PATCH RFC v3 5/6] perf tools: Add userspace counterpart for extended error reporting

Add a wrapper for fetching, parsing and pretty-printing kernel's extended syscall error reports in a manner that can be useful for communicating errors to the user. Signed-off-by: Alexander Shishkin --- tools/perf/util/Build| 1 +

Re: [PATCH man-pages v2] capabilities.7, prctl.2: Document ambient capabilities

On Fri, Sep 11, 2015 at 1:28 AM, Michael Kerrisk (man-pages) wrote: > Hi Andy, > > Not that this has hit mainline, would you be willing to refresh this > man-pages patch? Absolutely. I'll try to get to it over the next week or so. I need to refresh my util-linux patch,

Re: [PATCH 04/13] perf env: Introduce read_cpu_topology_map() method

Em Sat, Sep 12, 2015 at 01:14:02AM +0900, Namhyung Kim escreveu: > > You inverted it, no? > > So, could you please check if the below patch can have your Acked-by? > > Namhyung? > Looks good to me. > Acked-by: Namhyung Kim Thanks, added it to the patch, after lunch I

Re: Re: [PATCH v2 1/5] perf probe: Split add_perf_probe_events()

On Thu, Sep 10, 2015 at 08:10:16AM +, 平松雅巳 / HIRAMATU，MASAMI wrote: > Hi Namhyung, > > From: Namhyung Kim [mailto:namhy...@gmail.com] On Behalf Of Namhyung Kim > > > >Hi Masami, > > > >On Thu, Sep 10, 2015 at 05:00:07AM +, 平松雅巳 / HIRAMATU，MASAMI wrote: > >> >From: Namhyung Kim

Re: v2 of seccomp filter c/r patches

On Fri, Sep 11, 2015 at 9:30 AM, Andy Lutomirski wrote: > On Sep 10, 2015 5:22 PM, "Tycho Andersen" > wrote: >> >> Hi all, >> >> Here is v2 of the seccomp filter c/r set. The patch notes have individual >> changes from the last series, but

Re: [PATCH v2] arm/xen: Enable user access to the kernel before issuing a privcmd call

On Fri, Sep 11, 2015 at 05:25:59PM +0100, Julien Grall wrote: > + /* > + * Privcmd calls are issued by the userspace. We need to allow the > + * kernel to access the userspace memory before issuing the hypercall. > + */ > + uaccess_enable r4 > + > + /* r4 is loaded now

Re: [PATCH 0/1] rcu_sync: Cleanup the CONFIG_PROVE_RCU checks

On Fri, Sep 11, 2015 at 05:59:01PM +0200, Oleg Nesterov wrote: > On 09/10, Paul E. McKenney wrote: > > > > On Thu, Sep 10, 2015 at 03:59:42PM +0200, Oleg Nesterov wrote: > > > On 09/09, Paul E. McKenney wrote: > > > > > > > > This is obsolete, but its replacement is the same patch. > > > > > >

[PATCH 04/11] ARM: DT: STiH407: Add serial3 pinctrl configuration

Add missing serial 3 pinctrl config. This can be used on b2206 HVK, where it defaults to PIO31[3] & PIO31[4], alternate 1. Signed-off-by: Erwan Le Ray Signed-off-by: Fabrice Gasnier Acked-by: Carmelo Amoroso Acked-by: Patrice

[PATCH 02/11] ARM: STi: DT: STiH407: Add i2c3 alternate pin configs

i2c3 controller can use several sets of pins depending on board design. This patch adds the missing alternate pinconfigs. Signed-off-by: Seraphin Bonnaffe Signed-off-by: Peter Griffin --- arch/arm/boot/dts/stih407-pinctrl.dtsi | 14

[PATCH 03/11] ARM: DT: STiH407: Add SPI 3 wire and 4 wire pinctrl configs

This patch adds the spi pinctrl configurations for all SPI controllers, and also the alternate muxings which can be used depending on board design. Signed-off-by: Christophe Kerello Signed-off-by: Peter Griffin ---

Re: [PATCH 5/6] sched/fair: Get rid of scaling utilization by capacity_orig

On Wed, Sep 09, 2015 at 12:13:10PM +0100, Morten Rasmussen wrote: > On Wed, Sep 09, 2015 at 11:43:05AM +0200, Peter Zijlstra wrote: > > Sadly that makes the code worse; I get 14 mul instructions where > > previously I had 11. > > > > What happens is that GCC gets confused and cannot constant

[GIT PULL] Ceph changes for 4.3-rc1

Hi Linus, Please pull the following Ceph updates from git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git for-linus There are a few fixes for snapshot behavior with CephFS and support for the new keepalive protocol from Zheng, a libceph fix that affects both RBD and CephFS, a

Re: [PATCH v2 2/5] seccomp: make underlying bpf ref counted as well

On 09/11/2015 07:33 PM, Tycho Andersen wrote: On Fri, Sep 11, 2015 at 06:03:59PM +0200, Daniel Borkmann wrote: On 09/11/2015 04:44 PM, Tycho Andersen wrote: On Fri, Sep 11, 2015 at 03:02:36PM +0200, Daniel Borkmann wrote: On 09/11/2015 02:20 AM, Tycho Andersen wrote: In the next patch, we're

Re: randconfig build error with next-20150908, in drivers/md/dm-mpath.c

it is, DM_MULTIPATH must depend on it. We get a build > # error if SCSI_DH=m and DM_MULTIPATH=y > - depends on SCSI_DH || !SCSI_DH > + depends on !SCSI_DH || SCSI > ---help--- > Allow volume managers to support multipath hardware. > I verified (wi

[PATCH v6 2/6] locking/pvqspinlock: Unconditional PV kick with _Q_SLOW_VAL

If _Q_SLOW_VAL has been set, the vCPU state must have been vcpu_hashed. The extra check at the end of __pv_queued_spin_unlock() is unnecessary and so is removed. Signed-off-by: Waiman Long Reviewed-by: Davidlohr Bueso ---

[PATCH v6 0/6] locking/qspinlock: Enhance pvqspinlock performance

v5->v6: - Added a new patch 1 to relax the cmpxchg and xchg operations in the native code path to reduce performance overhead on non-x86 architectures. - Updated the unconditional PV kick patch as suggested by PeterZ. - Added a new patch to allow one lock stealing attempt at slowpath

[PATCH v6 5/6] locking/pvqspinlock: Allow 1 lock stealing attempt

This patch allows one attempt for the lock waiter to steal the lock when entering the PV slowpath. This helps to reduce the performance penalty caused by lock waiter preemption while not having much of the downsides of a real unfair lock. Linux kernel builds were run in KVM guest on an 8-socket,

Re: [PATCH v2 7/9] ARM: STi: DT: STiH407: Add FDMA driver dt nodes.

On Fri, 11 Sep 2015, Peter Griffin wrote: > These nodes are required to get the fdma driver working > on STiH407 based silicon. > > Signed-off-by: Peter Griffin > --- > arch/arm/boot/dts/stih407-family.dtsi | 51 > +++ > 1 file

Re: [GIT PULL] Please pull NFS client changes

On Mon, Sep 07, 2015 at 11:01:36PM -0700, Christoph Hellwig wrote: > On Tue, Sep 08, 2015 at 11:59:00AM +1000, Stephen Rothwell wrote: > > This contains about 12 commits new since Sept 1 and the last 6 are only > > appearing in linux-next today (though I did not do Friday and Monday's > >

Re: [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters

> It feels like this discussion is going in circles. > > When we discussed this six months ago, we already concluded that, > since UEFI is the only specified way that the presence of ACPI is > advertised on an ARM system, we need to emulate UEFI to some extent. My understanding from the last

Re: [PATCH] x86: Wire up 32-bit direct socket calls

On Fri, Sep 11, 2015 at 3:14 AM, Arnd Bergmann wrote: > On Friday 11 September 2015 11:54:50 Geert Uytterhoeven wrote: >> To make sure I don't miss any (it seems I missed recvmmsg and sendmmsg for >> the socketcall case, sigh), this is the list of ipc syscalls to implement? >> >>

Re: [PATCH v2] arm/xen: Enable user access to the kernel before issuing a privcmd call

On Fri, 11 Sep 2015, Russell King - ARM Linux wrote: > On Fri, Sep 11, 2015 at 06:36:05PM +0100, Julien Grall wrote: > > On 11/09/15 18:32, Julien Grall wrote: > > > On 11/09/15 18:00, Russell King - ARM Linux wrote: > > >> On Fri, Sep 11, 2015 at 05:25:59PM +0100, Julien Grall wrote: > > >>> +

[PATCH] staging/dgap: Use strpbrk() instead of dgap_sindex()

The provides strpbrk() function that does the same that the dgap_sindex(). Let's use already defined function instead of writing custom. Signed-off-by: Alexander Kuleshov --- drivers/staging/dgap/dgap.c | 24 +--- 1 file changed, 1 insertion(+), 23

[PATCH 1/1] rcu_sync: Cleanup the CONFIG_PROVE_RCU checks

1. Rename __rcu_sync_is_idle() to rcu_sync_lockdep_assert() and change it to use rcu_lockdep_assert(). 2. Change rcu_sync_is_idle() to return rsp->gp_state == GP_IDLE unconditonally, this way we can remove the same check from rcu_sync_lockdep_assert() and clearly isolate the debugging

Re: [PATCH] arm/xen: Enable user access to the kernel before issuing a privcmd call

Hi Ian, On 11/09/15 15:29, Ian Campbell wrote: >> After the commit a5e090acbf545c0a3b04080f8a488b17ec41fe02 "ARM: >> software-based priviledged-no-access support", the kernel can't access > > "privileged" That was a typo in the commit title of the patch. So I won't fix this one. All the others

Re: [RESEND PATCH v4 0/8] i2c: Relax mandatory I2C ID table passing

On Fri, 11 Sep 2015, Kieran Bingham wrote: > Hi Wolfram, > > I have picked this patchset [0] up from Lee to rebase it, with an aim to > get this series moving again. > > This resend fixes up my SoB's as highlighted by Lee > > A couple of minor issues were resolved in the rebase. As it stood,

Re: [PATCH v2 7/9] ARM: STi: DT: STiH407: Add FDMA driver dt nodes.

Hi Lee, On Fri, 11 Sep 2015, Lee Jones wrote: > On Fri, 11 Sep 2015, Peter Griffin wrote: > > > These nodes are required to get the fdma driver working > > on STiH407 based silicon. > > > > Signed-off-by: Peter Griffin > > --- > >

[PATCH 09/11] ARM: DT: STiH407: Add pinconfig for IRB UHF and IRB TX

This patch adds the pinconfig for IRB TX and IRB UHF. Signed-off-by: M'boumba Cedric Madianga Acked-by: Patrice Chotard Signed-off-by: Patrice Chotard Signed-off-by: Peter Griffin ---

Re: [GIT PULL] Please pull NFS client changes

On Fri, Sep 11, 2015 at 12:27 PM, Christoph Hellwig wrote: > On Mon, Sep 07, 2015 at 11:01:36PM -0700, Christoph Hellwig wrote: >> On Tue, Sep 08, 2015 at 11:59:00AM +1000, Stephen Rothwell wrote: >> > This contains about 12 commits new since Sept 1 and the last 6 are only >>

Re: v2 of seccomp filter c/r patches

On Fri, Sep 11, 2015 at 10:00:22AM -0700, Andy Lutomirski wrote: > On Fri, Sep 11, 2015 at 9:30 AM, Andy Lutomirski wrote: > > On Sep 10, 2015 5:22 PM, "Tycho Andersen" > > wrote: > >> > >> Hi all, > >> > >> Here is v2 of the seccomp filter c/r

Re: [PATCH v2] arm/xen: Enable user access to the kernel before issuing a privcmd call

On 11/09/15 18:00, Russell King - ARM Linux wrote: > On Fri, Sep 11, 2015 at 05:25:59PM +0100, Julien Grall wrote: >> +/* >> + * Privcmd calls are issued by the userspace. We need to allow the >> + * kernel to access the userspace memory before issuing the hypercall. >> + */ >> +

Re: [PATCH v2 7/9] ARM: STi: DT: STiH407: Add FDMA driver dt nodes.

On Fri, 11 Sep 2015, Peter Griffin wrote: > On Fri, 11 Sep 2015, Lee Jones wrote: > > On Fri, 11 Sep 2015, Peter Griffin wrote: > > > > > These nodes are required to get the fdma driver working > > > on STiH407 based silicon. > > > > > > Signed-off-by: Peter Griffin >

Re: [PATCH 11/11] ARM: STi: STiH407: Add spi default pinctrl groups.

On Fri, 11 Sep 2015, Peter Griffin wrote: > Now we have default pinconfig groups for each SPI > controller ensure it is used by the SPI controller > node. > > Signed-off-by: Peter Griffin > --- > arch/arm/boot/dts/stih407-family.dtsi | 14 ++ > 1 file

Re: [PATCH 02/11] ARM: STi: DT: STiH407: Add i2c3 alternate pin configs

On Fri, 11 Sep 2015, Peter Griffin wrote: > i2c3 controller can use several sets of pins depending > on board design. This patch adds the missing alternate > pinconfigs. > > Signed-off-by: Seraphin Bonnaffe > Signed-off-by: Peter Griffin >

Re: [PATCH 01/11] ARM: STi: DT: STiH407: Add a cec0 pin definition

On Fri, 11 Sep 2015, Peter Griffin wrote: > This pin setup provides the correct configuration in order to > interact with the CEC HW. > > Signed-off-by: Erwan Le Ray > Signed-off-by: Nicolas Vanhaelewyn > Acked-by: Patrice Chotard

[RFC][4.1.5-rt5 PATCH] ARM: smp: __cpu_disable: fix sleeping function called from invalid context

When running with the RT-kernel (4.1.5-rt5) on TI OMAP dra7-evm and trying to do Suspend to RAM, the following backtrace occurs: Disabling non-boot CPUs ... PM: noirq suspend of devices complete after 7.295 msecs Disabling non-boot CPUs ... BUG: sleeping function called from invalid context

Re: [PATCH] sched,numa: limit amount of virtual memory scanned in task_numa_work

On 09/11/2015 11:05 AM, Mel Gorman wrote: > On Fri, Sep 11, 2015 at 09:00:27AM -0400, Rik van Riel wrote: >> Currently task_numa_work scans up to numa_balancing_scan_size_mb worth >> of memory per invocation, but only counts memory areas that have at >> least one PTE that is still present and not

Re: [PATCH v2 9/9] ARM: multi_v7_defconfig: Enable STi FDMA driver

On Fri, 11 Sep 2015, Peter Griffin wrote: > This DMA controller is found on all STi chipsets. > > Signed-off-by: Peter Griffin > --- > arch/arm/configs/multi_v7_defconfig | 1 + > 1 file changed, 1 insertion(+) Acked-by: Lee Jones > diff --git

Re: [PATCH v2 8/9] MAINTAINERS: Add FDMA driver files to STi section.

On Fri, 11 Sep 2015, Peter Griffin wrote: > This patch adds the FDMA driver files to the STi > section of the maintainers file. > > Signed-off-by: Peter Griffin > --- > MAINTAINERS | 1 + > 1 file changed, 1 insertion(+) Acked-by: Lee Jones >

Re: [PATCH] DocBook: ignore .proc files

On Mon, 31 Aug 2015 11:16:08 -0700 Brian Norris wrote: > These are generated as part of 'make htmldocs'. If we don't ignore them, > then most of our generated subdirectories get treated as "untracked" by > git. Makes sense. Applied to the docs tree, thanks. jon --

[PATCH 05/11] ARM: DT: STiH407: Add SPI FSM (NOR Flash) Controller pin config

This patch adds the pin configuration for the NOR flash controller. Signed-off-by: Patrice Chotard Signed-off-by: Christophe Kerello Signed-off-by: Peter Griffin --- arch/arm/boot/dts/stih407-pinctrl.dtsi | 13

[PATCH 01/11] ARM: STi: DT: STiH407: Add a cec0 pin definition

This pin setup provides the correct configuration in order to interact with the CEC HW. Signed-off-by: Erwan Le Ray Signed-off-by: Nicolas Vanhaelewyn Acked-by: Patrice Chotard Signed-off-by: Patrice Chotard

[PATCH 07/11] ARM: DT: STiH407: Add systrace pin configuration

This patch adds the pin config for systrace for STiH407 family silicon. Signed-off-by: Patrice Chotard Signed-off-by: Fabrice Gasnier Signed-off-by: Peter Griffin --- arch/arm/boot/dts/stih407-pinctrl.dtsi | 12

Re: [RFC 3/5] powerpc: atomic: implement atomic{,64}_{add,sub}_return_* variants

On Fri, Sep 11, 2015 at 01:45:07PM +0100, Will Deacon wrote: > [left the context in the hope that we can make some progress] > > On Wed, Sep 02, 2015 at 10:59:06AM +0100, Will Deacon wrote: > > On Tue, Sep 01, 2015 at 10:45:40PM +0100, Paul E. McKenney wrote: > > > On Tue, Sep 01, 2015 at

Re: RCU explosion on ARM Integrator

On Fri, Sep 11, 2015 at 01:24:56PM +0200, Linus Walleij wrote: > Hi RCU folks, > > this happened to me when running the iozone throughput benchmark > on the ARM Integrator, I wonder if I should take this platform for a ride on > the RCU torture test or similar? Looks a bit instable :/ You got a

Re: [PATCH 5/5] perf tools: Enhance parsing events tracepoint error output

2015-09-11 12:16 GMT-04:00 Jiri Olsa : > On Sat, Sep 12, 2015 at 01:09:31AM +0900, Namhyung Kim wrote: >> has a problem - if tracefs is mounted under debugfs, the access mode >> of debugfs also affects, so in this case I had to change it both for >> debugfs and tracefs.. > > >

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