On 06/12/2015 02:16 AM, Rik van Riel wrote:
> On 06/11/2015 01:36 PM, Frederic Weisbecker wrote:
>> The tick dependency is evaluated on every irq. This is a batch of checks
>> which determine whether it is safe to stop the tick or not. These checks
>> are often split in many details: posix cpu
On Tue, Jun 16, 2015 at 11:58:58AM +0200, Boris Brezillon wrote:
>
> +config CRYPTO_DEV_MARVELL_CESA
> + tristate "New Marvell's Cryptographic Engine driver"
> + depends on (PLAT_ORION || ARCH_MVEBU || COMPILE_TEST) && HAS_DMA &&
> HAS_IOMEM
> + select CRYPTO_ALGAPI
> + select
On Wed, Jun 17, 2015 at 01:05:27PM +0800, Herbert Xu wrote:
> On Tue, Jun 16, 2015 at 11:58:59AM +0200, Boris Brezillon wrote:
> >
> > + ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
> > +DMA_TO_DEVICE);
> > + if (ret != creq->src_nents)
> > + return
Any feedback about this?
On 06/04/2015 05:45 PM, Gu Zheng wrote:
The following lockdep warning occurrs when running with latest kernel:
[3.178000] [ cut here ]
[3.183000] WARNING: CPU: 128 PID: 0 at kernel/locking/lockdep.c:2755
lockdep_trace_alloc+0xdd/0xe0()
[
Hi Greg,
Greg Ungerer wrote,
>
> I don't have any compile (or runtime) problems with m5208evb_defconfig
> on linux-4.0.5 either. That is close to what most people use with qemu.
> What .config are you using?
Are you sure the defconfig creates a bootable image?
I still need at least two patches.
On 2015/06/16 23:46, Arnaldo Carvalho de Melo wrote:
> Em Tue, Jun 16, 2015 at 08:50:57PM +0900, Masami Hiramatsu escreveu:
>> When the last part of converted events are blacklisted or out-of-text,
>> those are skipped and perf probe doesn't show usage examples.
>> This fixes it to show the
Hi Geert,
Geert Uytterhoeven wrote,
> Hi Waldemar,
>
> On Mon, Jun 15, 2015 at 10:23 PM, Waldemar Brodkorb wrote:
> > I am trying to build a M68K (Coldfire no-MMU) kernel for Qemu-system-m68k.
> > Any idea what change breaks the compile?
>
> I tried a few m68knommu defconfigs, but can't
On 06/16/2015 06:45 AM, Francois-Nicolas Muller wrote:
Use TCO watchdog first timeout (pretimeout) to dump CPU backtraces
and ease debug of watchdog expiration causes.
TCO logic generates a SCI interrupt, then its handler dumps all CPU
backtraces and calls panic (in order to execute registered
On Wed, Jun 17, 2015 at 11:06:50AM +0800, Boqun Feng wrote:
> Hi Yuyang,
>
> I've run the test as follow on tip/master without and with your
> patchset:
>
> On a 12-core system (Intel(R) Xeon(R) CPU X5690 @ 3.47GHz)
> run stress --cpu 12
> run dbench 1
Sorry, I forget to say that `stress --cpu
On Tue, Jun 16, 2015 at 11:58:59AM +0200, Boris Brezillon wrote:
>
> + ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
> + DMA_TO_DEVICE);
> + if (ret != creq->src_nents)
> + return -ENOMEM;
Hmm it doesn't quite work like that. It returns zero
Hi David,
>> Use BUG_ON(condition) instead of if(condition)/BUG()
>>
>> Signed-off-by: Maninder Singh
>> Reviewed-by: Akhilesh Kumar
>Your email client corrupted this patch, making it unusable
I resent the patch with git send-mail , it results ok, hopefully it does not
corrupt it.
Thanks
On Tue, 16 Jun 2015, Steven Rostedt wrote:
> > Does this patch fix your issue?
>
> I got this patch all ready and set to push to Linus. But I was hoping
> to add a Tested-by: from you. I already have you as Reported-by.
>
> I would like to get this in before 4.1 is released.
sorry for the
On Wed, Jun 17, 2015 at 12:29 AM, Andrew Morton
wrote:
> On Mon, 15 Jun 2015 08:56:49 +0300 Konstantin Khlebnikov
> wrote:
>
>> This patch removes page-shift bits (scheduled to remove since 3.11) and
>> completes migration to the new bit layout. Also it cleans messy macro.
>
> hm, I can't find
Hi Mathieu,
On Mon, Jun 15, 2015 at 11:31 AM, Mathieu Desnoyers
wrote:
> Hi,
>
> The updated membarrier tree:
> https://github.com/compudj/linux-dev
> branch: sys-membarrier-volatile
>
> has an issue building selftests (make -C tools/testing/selftests)
>
> It appears that including
From: Abdul Hussain
This patch removes casting the values returned by memory allocation functions.
Signed-off-by: Abdul Hussain
---
drivers/staging/wilc1000/linux_mon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/wilc1000/linux_mon.c
On Tue, Jun 16, 2015 at 05:41:29PM -0700, Stephen Boyd wrote:
> On 06/16/2015 05:31 PM, Paul E. McKenney wrote:
> > On Tue, Jun 16, 2015 at 05:21:59PM -0700, John Stultz wrote:
> >> Not sure if I have the right folks on CC. Noticed this booting on a
> >> apq8064 based system w/ 4.1-rc7 (plus a few
On Wednesday 17 June 2015 07:48 AM, gre...@linuxfoundation.org wrote:
> On Tue, Jun 16, 2015 at 07:09:56AM +, Abdul, Hussain (H.) wrote:
>> From: Abdul Hussain
>>
>> This patch removes casting the values returned by memory allocation
>> functions.
>>
>> Signed-off-by: Abdul Hussain
>> ---
On Tue, 2015-06-16 at 19:07 -0700, Brian Norris wrote:
> On Mon, Jun 01, 2015 at 11:10:50PM +0200, Richard Weinberger wrote:
> > kasprintf() used in get_partition_name() does a dynamic
> > memory allocation and can fail. We have to handle that case.
[]
> > diff --git a/drivers/mtd/nand/nandsim.c
Use BUG_ON(condition) instead of if(condition)/BUG() .
Signed-off-by: Maninder Singh
Reviewed-by: Akhilesh Kumar
---
net/packet/af_packet.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index b5989c6..c91d405 100644
On Tue, Jun 16, 2015 at 09:43:28PM -0500, Larry Finger wrote:
> On 06/16/2015 04:07 PM, Martin KaFai Lau wrote:
> >On Mon, Jun 15, 2015 at 04:25:18PM -0500, Larry Finger wrote:
> >>Additional backtrace lines are truncated. In addition, the above splat is
> >>followed by several "BUG: sleeping
On Tue, Jun 16, 2015 at 10:55 PM, Will Deacon wrote:
> On Tue, Jun 16, 2015 at 03:35:41PM +0100, Daniel Kurtz wrote:
>> The cros-ec-keyboard.dtsi snippet is useful for both arm and arm64 boards.
>> Create a link between the two.
>>
>> This may not be the most scalable solution, so consider it
On Tue, Jun 16, 2015 at 09:15:23AM +0200, Pali Rohár wrote:
> On Tuesday 16 June 2015 08:33:46 Michal Hocko wrote:
> > On Mon 15-06-15 23:27:59, Pali Rohár wrote:
> > > On Monday 15 June 2015 23:18:16 Michal Hocko wrote:
> > > > On Sun 14-06-15 11:05:07, Pali Rohár wrote:
> > > > > Hello,
> > > >
Following error occurs when trying to use 'perf report' on x86_64 to
cross analysis a perf.data generated by an old perf on a big-endian
machine:
# perf report
*** Error in `/home/w00229757/perf': free(): invalid next size (fast):
0x032c99f0 ***
=== Backtrace: =
From: songxiumiao
---
arch/x86/kernel/acpi/boot.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index dbe76a1..b8f93b3 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -733,6
On Tue, 2015-06-16 at 19:45 -0600, Sagar Dharia wrote:
> SLIMbus (Serial Low Power Interchip Media Bus) is a specification
> developed by MIPI (Mobile Industry Processor Interface) alliance.
> SLIMbus is a 2-wire implementation, which is used to communicate with
> peripheral components like
Hi all,
Changes since 20150615:
The rdma tree gained a conflict against the nfs tree.
The rdma tree gained a conflict against the net-next tree.
The tip tree gained a conflict against the iommu tree.
The tip tree gained a conflict against the crypto tree.
The akpm-current tree gained a
On Tue, Jun 16, 2015 at 04:27:57PM -0400, Vivek Goyal wrote:
>
> So looks like you are looking for a system/option where you just want to
> always make use of kexec_file_load() and disable kexec_load(). This sounds
> like you want a kernel where kexec_load() is compiled out and you want
> only
Hi Andrew,
Today's linux-next merge of the akpm-current tree got a conflict in:
fs/ufs/namei.c
between commit:
a50e4a02ad69 "ufs: don't bother with lock_ufs()/unlock_ufs() for directory
access"
from the vfs tree and commit:
2ce1efe3965b "fs/ufs: revert "ufs: fix deadlocks introduced
Hi all,
Today's linux-next merge of the tip tree got conflicts in:
drivers/crypto/vmx/aes.c
drivers/crypto/vmx/aes_cbc.c
drivers/crypto/vmx/ghash.c
between commit:
4beb10604597 "crypto: vmx - Reindent to kernel style"
from the crypto tree and commit:
5f76eea88dcb "sched/preempt,
Hi Doug,
Today's linux-next merge of the rdma tree got a conflict in:
drivers/infiniband/hw/mlx4/mad.c
between commit:
7193a141eb74 "IB/mlx4: Set VF to read from QP counters"
from the net-next tree and commit:
4cd7c9479aff "IB/mad: Add support for additional MAD info to/from drivers"
On 06/16/2015 05:15 PM, Andrew Morton wrote:
> On Sun, 14 Jun 2015 18:04:43 +0300 Ebru Akagunduz
> wrote:
>
>> This patch makes swapin readahead to improve thp collapse rate.
>> When khugepaged scanned pages, there can be a few of the pages
>> in swap area.
>>
>> With the patch THP can collapse
Hi Doug,
Today's linux-next merge of the rdma tree got a conflict in:
net/sunrpc/xprtrdma/verbs.c
between commit:
89e0d11258e9 "xprtrdma: Use ib_device pointer safely"
from the nfs tree and commit:
8e37210b38fb "IB/core: Change ib_create_cq to use struct ib_cq_init_attr"
from the rdma
Hi Doug,
Today's linux-next merge of the rdma tree got a conflict in:
net/sunrpc/xprtrdma/frwr_ops.c
between commit:
951e721ca0d6 "xprtrdma: Introduce an FRMR recovery workqueue"
from the nfs tree and commit:
76357c715f32 "xprtrdma, svcrdma: Switch to generic logging helpers"
from the
On Tue, Jun 16, 2015 at 05:54:36PM -0400, Tejun Heo wrote:
> Hello, Ted.
>
> On Mon, Jun 15, 2015 at 07:35:19PM -0400, Theodore Ts'o wrote:
> > So if there is some way we can signal to any cgroup that that might be
> > throttling writeback or disk I/O that the jbd/jbd2 process should be
> >
On 2015/6/16 23:51, Ilya Dryomov wrote:
On Tue, Jun 16, 2015 at 5:14 PM, juncheng bai
wrote:
On 2015/6/16 21:30, Ilya Dryomov wrote:
On Tue, Jun 16, 2015 at 2:57 PM, juncheng bai
wrote:
On 2015/6/16 16:37, Ilya Dryomov wrote:
On Tue, Jun 16, 2015 at 6:28 AM, juncheng bai
wrote:
On 06/16/2015 07:36 PM, Herbert Xu wrote:
> The existing crypto/asymmetric_key errno scheme doesn't really
> mesh in with the rest of crypto. So you'll just have to pick one
> scheme and stick with it.
>
> I don't really mind either way as long as the error codes are
> unique and meaningful.
So
On 06/16/2015 04:07 PM, Martin KaFai Lau wrote:
On Mon, Jun 15, 2015 at 04:25:18PM -0500, Larry Finger wrote:
Additional backtrace lines are truncated. In addition, the above splat is
followed by several "BUG: sleeping function called from invalid context
at mm/slub.c:1268" outputs. As
On Wed, May 20, 2015 at 8:39 PM, Shobhit Kumar wrote:
> On Thu, May 7, 2015 at 12:49 PM, Shobhit Kumar wrote:
>> On Wed, May 6, 2015 at 5:44 PM, Thierry Reding
>> wrote:
>>> On Tue, May 05, 2015 at 03:08:36PM +0530, Shobhit Kumar wrote:
The Crystalcove PMIC controls PWM signals and this
On Tue, Jun 16, 2015 at 07:32:16PM -0700, Tadeusz Struk wrote:
>
> I thought that -EBADMSG was mainly used for authenticated ciphers in case
> when verification of auth data fails.
> Since this are input params I thought that -EINVAL would be more appropriate.
> I can change it to -EBADMSG, no
Hi David,
On 06/16/2015 03:10 PM, David Howells wrote:
>> +static int _rsa_sign(const struct rsa_key *key, MPI s, MPI m)
>> > +{
>> > + /* (1) Validate 0 <= m < n */
>> > + if (mpi_cmp_ui(m, 0) < 0 || mpi_cmp(m, key->n) >= 0)
>> > + return -EINVAL;
> Why -EINVAL not -EBADMSG?
I thought
On 6/16/15 7:24 PM, Hemant Kumar wrote:
Because, this depends on the kernel tracepoint "kvm_hv:kvm_guest_exit".
perf_prepare_sample() in the kernel side sets the event->header.misc
field to
PERF_RECORD_MISC_KERNEL through perf_misc_flags(pt_regs). In case of
tracepoints which always get hit in
On Tue, Jun 16, 2015 at 07:10:28AM +, Abdul, Hussain (H.) wrote:
> From: Abdul Hussain
>
> This patch removes casting the values returned by memory allocation functions.
>
> Signed-off-by: Abdul Hussain
> ---
> drivers/staging/wilc1000/linux_wlan.c | 6 +++---
> 1 file changed, 3
On Tue, Jun 16, 2015 at 07:09:56AM +, Abdul, Hussain (H.) wrote:
> From: Abdul Hussain
>
> This patch removes casting the values returned by memory allocation functions.
>
> Signed-off-by: Abdul Hussain
> ---
> drivers/staging/wilc1000/linux_mon.c | 4 ++--
> 1 file changed, 2
Hi David,
David Teigland wrote:
> On Thu, Jun 11, 2015 at 05:47:28PM +0800, Guoqing Jiang wrote:
>
>> Do you consider take the following clean up? If yes, I will send a
>> formal patch, otherwise pls ignore it.
>>
>
> On first glance, the old and new code do not appear to do the same
Hi Boris & Tony,
While injecting MCEs using einj, I encountered a panic:
[0.305697] mce: CPU supports 22 MCE banks
[0.310288] BUG: unable to handle kernel NULL pointer dereference at
0100
[0.319057] IP: []
On Mon, Jun 01, 2015 at 11:10:49PM +0200, Richard Weinberger wrote:
> device_create_file() can fail, therefore we have to
> handle this case and abort.
>
> Signed-off-by: Richard Weinberger
Pushed the first 5. Still looking at the 6th.
--
To unsubscribe from this list: send the line
On Mon, Jun 01, 2015 at 11:10:50PM +0200, Richard Weinberger wrote:
> kasprintf() used in get_partition_name() does a dynamic
> memory allocation and can fail. We have to handle that case.
>
> Signed-off-by: Richard Weinberger
> ---
> drivers/mtd/nand/nandsim.c | 10 ++
> 1 file
OF helper routine scans the SLIMbus DeviceTree, allocates resources,
and creates slim_devices according to the hierarchy.
Signed-off-by: Sagar Dharia
---
Documentation/devicetree/bindings/slimbus/bus.txt | 34 ++
drivers/slimbus/slimbus.c | 76
On Tue, Jun 16, 2015 at 08:32:37PM -0500, Eric W. Biederman wrote:
> Vivek Goyal writes:
>
> > On Tue, Jun 16, 2015 at 02:38:31PM -0500, Eric W. Biederman wrote:
> >>
> >> Adding Vivek as he is the one who implemented kexec_file_load.
> >> I was hoping he would respond to this thread, and it
Per slimbus specification, a reconfiguration sequence known as
'clock pause' needs to be broadcast over the bus while entering low-
power mode. Clock-pause is initiated by the controller driver.
To exit clock-pause, controller typically wakes up the framer device.
Since wakeup precedure is
This controller driver programs manager, interface, and framer
devices for Qualcomm's slimbus HW block.
Manager component currently implements logical address setting,
and messaging interface.
Interface device reports bus synchronization information, and framer
device clocks the bus from the time
Slimbus HW mandates that clock-pause sequence has to be executed
before disabling relevant interface and core clocks.
Runtime-PM's autosuspend feature is used here to enter/exit low
power mode for Qualcomm's Slimbus controller. Autosuspend feature
enables driver to avoid changing power-modes too
Slimbus devices use value-element, and information elements to
control device parameters (e.g. value element is used to represent
gain for codec, information element is used to represent interrupt
status for codec when codec interrupt fires).
Messaging APIs are used to set/get these value and
SLIMbus (Serial Low Power Interchip Media Bus) is a specification
developed by MIPI (Mobile Industry Processor Interface) alliance.
SLIMbus is a 2-wire implementation, which is used to communicate with
peripheral components like audio-codec.
SLIMbus uses Time-Division-Multiplexing to accommodate
SLIMbus (Serial Low Power Interchip Media Bus) is a specification
developed by MIPI (Mobile Industry Processor Interface) alliance.
SLIMbus is a 2-wire implementation, which is used to communicate with
peripheral components like audio-codec.
SLIMbus uses Time-Division-Multiplexing to accommodate
This patch adds poweroff button device node to support poweroff feature
on APM X-Gene Mustang platform.
Signed-off-by: Y Vo
---
arch/arm64/boot/dts/apm/apm-mustang.dts | 11 +++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/boot/dts/apm/apm-mustang.dts
Signed-off-by: Martin Kepplinger
---
These just look odd when out of date. The proper fix would probably be
to create a Documentation/ABI/testing/sysfs-platform-acer-wmi file and
remove the deprecated ones.
drivers/platform/x86/acer-wmi.c | 6 +++---
1 file changed, 3 insertions(+), 3
Vivek Goyal writes:
> On Tue, Jun 16, 2015 at 02:38:31PM -0500, Eric W. Biederman wrote:
>>
>> Adding Vivek as he is the one who implemented kexec_file_load.
>> I was hoping he would respond to this thread, and it looks like he
>> simply has not ever been Cc'd.
>>
>> Theodore Ts'o writes:
>>
Define pr_fmt macro with {ERST DBG: } prefix, then remove all use
of ERST_DBG_PFX in the pr_* functions.
Signed-off-by: Wang Long
---
drivers/acpi/apei/erst-dbg.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/acpi/apei/erst-dbg.c
This patch can avoid the following WARNING when run
checkpatch.pl:
WARNING: Prefer pr_warn(... to pr_warning(...
#21: FILE: drivers/acpi/apei/erst-dbg.c:134:
+ pr_warning("Record (ID: 0x%llx) length is too long:
%zd\n",
Signed-off-by: Wang Long
---
Damn, sorry for noise, forgot to mention.
And whatever I missed, this ctx->dead check in aio_ring_remap()
looks wrong anyway. Please correct me.
On 06/17, Oleg Nesterov wrote:
>
> On 06/17, Oleg Nesterov wrote:
> >
> > On 06/17, Al Viro wrote:
> > >
> > > On Wed, Jun 17, 2015 at 01:04:14AM
On 2015/6/15 22:42, Joe Perches wrote:
> On Mon, 2015-06-15 at 09:57 +, Wang Long wrote:
>> Define pr_fmt macro with {ERST DBG: } prefix, then remove all use
>> of ERST_DBG_PFXin the pr_* functions.
> []
>> diff --git a/drivers/acpi/apei/erst-dbg.c b/drivers/acpi/apei/erst-dbg.c
> []
>> @@
On 06/16/2015 03:39 AM, Noralf Trønnes wrote:
>
> Den 16.06.2015 05:07, skrev Stephen Warren:
>> On 06/13/2015 05:39 AM, Noralf Trønnes wrote:
>>> This adds a new poweroff function to the watchdog driver for the
>>> Raspberry Pi. Currently poweroff/halt results in a reboot.
>>>
>>> The Raspberry
Hi David,
Thanks for the review.
On 06/16/2015 08:23 PM, David Ahern wrote:
On 6/15/15 8:50 PM, Hemant Kumar wrote:
+/*
+ * Get the instruction pointer from the tracepoint data
+ */
+u64 arch__get_ip(struct perf_evsel *evsel, struct perf_sample *data)
+{
+u64 tp_ip = data->ip;
+int
On 06/17, Al Viro wrote:
>
> On Wed, Jun 17, 2015 at 01:39:06AM +0100, Al Viro wrote:
>
> > Huh? kill_ioctx() picks ctx->mmap_base and passes it to vm_munmap().
> > Which tries to grab mmap_sem, blocks for mremap() from another thread
> > and waits for it to drop mmap_sem. By that time
Looks good.
Reviewed-by: Ashley Lai
Thanks,
--Ashley
On Tue, 9 Jun 2015, Hon Ching(Vicky) Lo wrote:
The base pointer for the event log is allocated in the local
kernel (in prom_instantiate_sml()), therefore it is already in
the host's endian byte order and requires no conversion.
The
Just a small comment otherwise it looks good.
On Tue, 9 Jun 2015, Hon Ching(Vicky) Lo wrote:
case NONHOST_INFO:
- name = tcpa_event_type_strings[event->event_type];
+ name =
+ tcpa_event_type_strings[do_endian_conversion
+
On Tue, 16 Jun 2015 18:04:39 -0700
Alexei Starovoitov wrote:
>
> you mean similar to what rb_wakeups() and friends are doing?
> makes sense. starting to study it...
Yes, I meant those functions. But yours would be slightly different. As
it would be the one calling the irq work that would be
On 06/17, Oleg Nesterov wrote:
>
> On 06/17, Al Viro wrote:
> >
> > On Wed, Jun 17, 2015 at 01:04:14AM +0200, Oleg Nesterov wrote:
> > > Al, please help. We are trying to backport some aio fixes and I am
> > > absolutely confused by your b2edffdd912b "fix mremap() vs. ioctx_kill()
> > > race".
> >
On 06/17, Al Viro wrote:
>
> On Wed, Jun 17, 2015 at 01:04:14AM +0200, Oleg Nesterov wrote:
> > Al, please help. We are trying to backport some aio fixes and I am
> > absolutely confused by your b2edffdd912b "fix mremap() vs. ioctx_kill()
> > race".
> >
> >
> > Firstly, I simply can't understand
Acked-by: Thomas Sailer
On 06/17/2015 02:35 AM, Andy Lutomirski wrote:
This is only used if BAYCOM_DEBUG is defined.
Cc: walter harms
Cc: Ralf Baechle
Cc: Thomas Sailer
Cc: linux-h...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
I'm hoping for an ack for this to go through -tip.
Fix an allmodconfig compilation failer on microblaze due to big endian
architectures being apparently unsupported by the NetJet code:
drivers/isdn/hisax/nj_s.c: In function 'setup_netjet_s':
drivers/isdn/hisax/nj_s.c:265:2:
error: #error "not running on big endian machines now"
Modify
On 6/16/15 5:47 PM, Steven Rostedt wrote:
Do what I do in tracing. Use a bit (per cpu?) test.
Add the element to the list (that will be a cmpxchg, but I'm not sure
you can avoid it), then check the bit to see if the irq work is already
been activated. If not, then activate the irq work and set
Every tracepoint creates two functions, the usual one 'trace_*()'
and the rcuidle one 'trace_*_rcuidle()'. Add regex for the
rcuidle variant so that we can jump to the tracepoints that use
rcuidle.
Cc: Steven Rostedt
Signed-off-by: Stephen Boyd
---
scripts/tags.sh | 4
1 file changed, 4
On Wed, Jun 17, 2015 at 01:39:06AM +0100, Al Viro wrote:
> Huh? kill_ioctx() picks ctx->mmap_base and passes it to vm_munmap().
> Which tries to grab mmap_sem, blocks for mremap() from another thread
> and waits for it to drop mmap_sem. By that time ctx->mmap_base has
> nothing whatsoever to
On Tue, 16 Jun 2015 17:33:24 -0700
Alexei Starovoitov wrote:
> On 6/16/15 10:37 AM, Steven Rostedt wrote:
> >>> + kfree(l);
> >> >
> >> >that's not right, since such thread defeats rcu protection of lookup.
> >> >We need either kfree_rcu/call_rcu or synchronize_rcu.
> >>
In cdc7957d1954 ("x86: move native_read_tsc() offline"),
native_read_tsc was moved out of line, presumably for some
now-obsolete vDSO-related reason. Undo it.
The entire rdtsc, shl, or sequence is only 11 bytes, and calls via
rdtscl and similar helpers were already inlined.
Signed-off-by: Andy
On 06/16/2015 05:39 PM, Axel Lin wrote:
> Fix the logic in spmi_regulator_common_list_voltage() to return correct uV.
>
> Signed-off-by: Axel Lin
There are two, and patch already sent[1].
[1] https://patchwork.kernel.org/patch/6619381/
--
Qualcomm Innovation Center, Inc. is a member of Code
On 06/16/2015 05:31 PM, Paul E. McKenney wrote:
> On Tue, Jun 16, 2015 at 05:21:59PM -0700, John Stultz wrote:
>> Not sure if I have the right folks on CC. Noticed this booting on a
>> apq8064 based system w/ 4.1-rc7 (plus a few patches that I believe are
>> unrelated).
>>
>>
>> [0.008796]
It wasn't compiled in by default. I suspect that the driver was and
still is broken, though -- it's calling udelay with a parameter
that's derived from loops_per_jiffy.
Cc: Jarod Wilson
Cc: de...@driverdev.osuosl.org
Cc: Greg Kroah-Hartman
Signed-off-by: Andy Lutomirski
---
This code is timing 100k indirect calls, so the added overhead of
counting the number of cycles elapsed as a 64-bit number should be
insignificant. Drop the optimization of using a 32-bit count.
Signed-off-by: Andy Lutomirski
---
arch/x86/kernel/cpu/amd.c | 6 +++---
1 file changed, 3
This is only used if BAYCOM_DEBUG is defined.
Cc: walter harms
Cc: Ralf Baechle
Cc: Thomas Sailer
Cc: linux-h...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
I'm hoping for an ack for this to go through -tip.
drivers/net/hamradio/baycom_epp.c | 2 +-
1 file changed, 1 insertion(+), 1
Now that the read_tsc paravirt hook is gone, rdtscll() is just a
wrapper around native_read_tsc(). Unwrap it.
Signed-off-by: Andy Lutomirski
---
arch/x86/boot/compressed/aslr.c | 2 +-
arch/x86/include/asm/msr.h | 3 ---
arch/x86/include/asm/tsc.h
They have no users. Leave native_read_tscp, which seems potentially
useful despite also having no callers.
Signed-off-by: Andy Lutomirski
---
arch/x86/include/asm/msr.h | 9 -
1 file changed, 9 deletions(-)
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index
It has no more callers, and it was never a very sensible interface
to begin with. Users of the TSC should either read all 64 bits or
explicitly throw out the high bits.
Signed-off-by: Andy Lutomirski
---
arch/x86/include/asm/msr.h | 3 ---
1 file changed, 3 deletions(-)
diff --git
Ping, anyone one the ACPI list care to comment on this?
I should give some history here. The IPMI spec specifies four different
IPMI interfaces using the IPI0001 ID. Three of the interfaces are close
enough that they are in the same driver, since they all have about the
same behavior and the
It's unclear to me why this code exists in the first place.
Acked-by: Dmitry Torokhov
Cc: linux-in...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
drivers/input/gameport/gameport.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/gameport/gameport.c
Fix the logic in spmi_regulator_common_list_voltage() to return correct uV.
Signed-off-by: Axel Lin
---
drivers/regulator/qcom_spmi-regulator.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/qcom_spmi-regulator.c
On Wed, Jun 17, 2015 at 01:04:14AM +0200, Oleg Nesterov wrote:
> Al, please help. We are trying to backport some aio fixes and I am
> absolutely confused by your b2edffdd912b "fix mremap() vs. ioctx_kill()
> race".
>
>
> Firstly, I simply can't understand what exactly it tries to fix. OK,
>
This timing code is hideous, and this doesn't help. It gets rid of
one of the last users of rdtscl, though.
Acked-by: Dmitry Torokhov
Cc: linux-in...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
drivers/input/joystick/analog.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
There are two logical changes here. First, this removes a check for
cpu_has_tsc. That check is unnecessary, as we don't register the
TSC as a clocksource on systems that have no TSC. Second, it adds a
barrier, thus preventing observable non-monotonicity.
I suspect that the missing barrier was
Now that there is no paravirt TSC, the "native" is inappropriate.
The function does RDTSC, so give it the obvious name: rdtsc()
Suggested-by: Borislav Petkov
Signed-off-by: Andy Lutomirski
---
arch/x86/boot/compressed/aslr.c | 2 +-
arch/x86/entry/vdso/vclock_gettime.c
Using get_cycles was unnecessary: check_tsc_warp() is not called on
TSC-less systems. Replace rdtsc_barrier(); get_cycles() with
rdtsc_ordered().
While we're at it, make the somewhat more dangerous change of
removing barrier_before_rdtsc after RDTSC in the TSC warp check
code. This should be
rdtsc_barrier(); rdtsc() is an unnecessary mouthful and requires
more thought than should be necessary. Add an rdtsc_ordered()
helper and replace the trivial call sites with it.
This should not change generated code. The duplication of the fence
asm is temporary.
Signed-off-by: Andy Lutomirski
__pvclock_read_cycles had an unnecessary barrier. Get rid of that
barrier and clean up the code by just using rdtsc_ordered().
Cc: Paolo Bonzini
Cc: Radim Krcmar
Cc: Marcelo Tosatti
Cc: k...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
I'm hoping to get an ack for this to go in
All callers have been converted to rdtsc_ordered().
Signed-off-by: Andy Lutomirski
---
arch/x86/include/asm/barrier.h | 11 ---
arch/x86/um/asm/barrier.h | 13 -
2 files changed, 24 deletions(-)
diff --git a/arch/x86/include/asm/barrier.h
We've had read_tsc and read_tscp paravirt hooks since the very
beginning of paravirt, i.e., d3561b7fa0fb ("[PATCH] paravirt: header
and stubs for paravirtualisation"). AFAICT the only paravirt guest
implementation that ever replaced these calls was vmware, and it's
gone. Arguably even vmware
As a very minor optimization, tsc_delay was only using the low 32
bits of the TSC. It's a delay function, so just use the whole
thing.
Signed-off-by: Andy Lutomirski
---
arch/x86/lib/delay.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/lib/delay.c
My sincere apologies for the spam. I send an unholy mixture of the
real patch set and an old poorly split-up patch set, and the result
is incomprehensible. Here's what I meant to send.
After the some recent threads about rdtsc barriers, I remembered
that our RDTSC wrappers are a big mess.
The only caller was kvm's read_tsc. The only difference between
vget_cycles and native_read_tsc was that vget_cycles returned zero
instead of crashing on TSC-less systems. KVM's already checks
vclock_mode before calling that function, so the extra check is
unnecessary.
(Off-topic, but the whole
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