On Sat, Nov 25, 2017 at 05:59:54PM -0800, Alexei Starovoitov wrote:
> If we were poking into 'struct perf_event_attr __user *uptr'
> directly like get|put_user(.., &uptr->config)
> then 32-bit user space with 4-byte aligned u64s would cause
> 64-bit kernel to trap on archs like sparc.
But surely
On Sun, Nov 26, 2017 at 12:28:49PM +0100, Philippe Ombredanne wrote:
> Greg, Martin:
>
> On Sun, Nov 26, 2017 at 9:59 AM, Greg Kroah-Hartman
> wrote:
> > On Sat, Nov 25, 2017 at 04:42:59PM -0800, Dmitry Torokhov wrote:
> >> Hi Martin,
> >>
> >> On Sat, Nov 18, 2017 at 09:45:18AM +0100, Martin Kep
There is no real need for the users of timecounters to define cyclecounter
and timecounter variables separately. Since timecounter will always be
based on cyclecounter, have cyclecounter struct as member of timecounter
struct.
Suggested-by: Chris Wilson
Signed-off-by: Sagar Arun Kamble
Cc: John
On Mon, Nov 27, 2017 at 08:44:01AM +0100, Martin Kepplinger wrote:
> This adds an SPDX license identifier to this driver I wrote some time back.
>
> Signed-off-by: Martin Kepplinger
> ---
>
> Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I
> already see a lot of SPDX tags
FYI, we noticed the following commit (built with gcc-7):
commit: d17a1d97dc208d664c91cc387ffb752c7f85dc61 ("x86/mm/kasan: don't use
vmemmap_populate() to initialize shadow")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: trinity
with following parameters:
If something calls ioremap with an address not aligned to PAGE_SIZE, the
returned address might be not aligned as well. This led to a probe
registered on exactly the returned address, but the entire page was armed
for mmiotracing.
On calling iounmap the address passed to unregister_kmmio_probe was
From: "Edgar E. Iglesias"
Currently, we only use the first receive queue and leave the
remaining DMA descriptor pointers pointing at 0.
Disable unused queues by connecting them to a looped descriptor
chain without free slots.
Signed-off-by: Edgar E. Iglesias
Signed-off-by: Harini Katakam
Sign
Hi Peter,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.15-rc1 next-20171127]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/co
This adds an SPDX license identifier to this driver I wrote some time back.
Signed-off-by: Martin Kepplinger
---
Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I
already see a lot of SPDX tags using /**/ comments, I'll use that too.
I think if it is hand-written, it should
From: "Edgar E. Iglesias"
Add RX queue pointer to macb queues to make it accessible for the
multiple queues available. Currently the first RX queue is used.
Signed-off-by: Edgar E. Iglesias
Signed-off-by: Harini Katakam
Signed-off-by: Michal Simek
---
drivers/net/ethernet/cadence/macb.h
From: Harini Katakam
Handle HRESP error by doing a SW reset of RX and TX and
re-initializing the descriptors, RX and TX queue pointers.
Signed-off-by: Harini Katakam
Signed-off-by: Michal Simek
---
drivers/net/ethernet/cadence/macb.h | 2 +
drivers/net/ethernet/cadence/macb_main.c | 65
This series fixes the following:
-> Ties off unused RX queues
-> Handles RX HRESP error
Edgar E. Iglesias (2):
net: macb: Add RBQP to the macb queues
net: macb: Tie-off unused RX queues
Harini Katakam (1):
net: macb: Handle HRESP error
drivers/net/ethernet/cadence/macb.h | 5 ++
dr
Hi,
Please ignore this series.
I'm sending another updated one.
Sorry for the inconvenience.
Regards,
Harini
On Mon, Nov 27, 2017 at 12:33 PM, Harini Katakam
wrote:
> From: "Edgar E. Iglesias"
>
> Add RX queue pointer to macb queues to make it accessible for the
> multiple queues available. Cu
From: Rui Feng
Add support for new chip rts5260.
In order to support rts5260, the definitions of
some internal registers and workflow have to be
modified and are different from its predecessors
and OCP function is added for RTS5260. So we need
this patch to ensure RTS5260 can work.
Signed-off-by
From: Rui Feng
Because Realtek card reader drivers are pcie and usb drivers,
and they bridge mmc subsystem and memstick subsystem, they are
not mfd drivers. Greg and Lee Jones had a discussion about
where to put the drivers, the result is that misc is a good
place for them, so I move all files to
On 11/24/2017 01:50 PM, Colin King wrote:
> From: Colin Ian King
>
> Use setup_timer function instead of initializing timer with the
> function and data fields.
>
> Signed-off-by: Colin Ian King
> ---
> drivers/s390/net/fsm.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff
It was <2017-11-24 pią 16:25>, when PrasannaKumar Muralidharan wrote:
>> +}
>> +
>> +static int exynos_trng_do_read(struct hwrng *rng, void *data, size_t max,
>> + bool wait)
>> +{
>> + struct exynos_trng_dev *trng;
>> + u32 val;
>> +
>> + max = max >
From: Andrei Vagin
It is a hybrid of process_vm_readv() and vmsplice().
vmsplice can map memory from a current address space into a pipe.
process_vm_readv can read memory of another process.
A new system call can map memory of another process into a pipe.
ssize_t process_vmsplice(pid_t pid, in
Signed-off-by: Mike Rapoport
---
man2/process_vmsplice.2 | 188
1 file changed, 188 insertions(+)
create mode 100644 man2/process_vmsplice.2
diff --git a/man2/process_vmsplice.2 b/man2/process_vmsplice.2
new file mode 100644
index 000..b99c06
Signed-off-by: Mike Rapoport
---
fs/splice.c | 57 -
1 file changed, 36 insertions(+), 21 deletions(-)
diff --git a/fs/splice.c b/fs/splice.c
index 39e2dc0..7f1ffc5 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1185,6 +1185,36 @@ static lo
From: Andrei Vagin
Signed-off-by: Andrei Vagin
---
arch/x86/entry/syscalls/syscall_32.tbl | 1 +
arch/x86/entry/syscalls/syscall_64.tbl | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl
b/arch/x86/entry/syscalls/syscall_32.tbl
index 448ac21..dc64bf5
From: Andrei Vagin
This test checks that process_vmsplice() can splice pages from a remote
process and returns EFAULT, if process_vmsplice() tries to splice pages
by an unaccessiable address.
Signed-off-by: Andrei Vagin
Signed-off-by: Mike Rapoport
---
tools/testing/selftests/process_vmsplice
Hi,
This patches introduces new process_vmsplice system call that combines
functionality of process_vm_read and vmsplice.
It allows to map the memory of another process into a pipe, similarly to
what vmsplice does for its own address space.
The patch 2/4 ("vm: add a syscall to map a process memo
From: Richard Leitner
Previously phy_id was u32 and phy_id_mask was unsigned int. As the
phy_id_mask defines the important bits of the phy_id (and is therefore
the same size) these two variables should be the same data type.
Signed-off-by: Richard Leitner
Reviewed-by: Florian Fainelli
Reviewed
From: "Edgar E. Iglesias"
Currently, we only use the first receive queue and leave the
remaining DMA descriptor pointers pointing at 0.
Disable unused queues by connecting them to a looped descriptor
chain without free slots.
Signed-off-by: Edgar E. Iglesias
Signed-off-by: Harini Katakam
Sign
From: "Edgar E. Iglesias"
Add RX queue pointer to macb queues to make it accessible for the
multiple queues available. Currently the first RX queue is used.
Signed-off-by: Edgar E. Iglesias
Signed-off-by: Harini Katakam
Signed-off-by: Michal Simek
---
drivers/net/ethernet/cadence/macb.h
Hmm, this is almost 20 years old code (
I think the original code did a burst write and didn't check for error
conditions until the very last byte write. I seem to remember that there was
some text in the original standard to that effect (this may have gone back as
far as IBM's ESS spec).
The
Reference count of device node was increased in of_i2c_register_device,
but without decreasing it in i2c_unregister_device. Then the dynamically
added device node will never be released.
Fix this by adding the of_node_put.
Signed-off-by: Lixin Wang
---
drivers/i2c/i2c-core-base.c | 4 +++-
1 fil
Hi Peter,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.15-rc1 next-20171124]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/co
This patch adds region_id to fpga_image_info data structure, it
allows driver to pass region id information to fpga-mgr via
fpga_image_info for fpga reconfiguration function.
Signed-off-by: Wu Hao
v3: add one line comment for region_id
---
include/linux/fpga/fpga-mgr.h | 2 ++
1 file change
Add a document for Intel FPGA driver overview.
Signed-off-by: Enno Luebbers
Signed-off-by: Xiao Guangrong
Signed-off-by: Wu Hao
v2: added FME fpga-mgr/bridge/region platform driver to driver organization.
updated open discussion per current implementation.
fixed some typos.
v3: use
Hi All,
Here is v3 patch-series adding drivers for Intel FPGA devices.
The Intel FPGA driver provides interfaces for userspace applications to
configure, enumerate, open, and access FPGA accelerators on platforms
equipped with Intel(R) PCIe based FPGA solutions and enables system
level management
On Sun, 26 Nov 2017, Logan Gunthorpe wrote:
>
>
> On 26/11/17 11:42 PM, Julia Lawall wrote:
> > Although I guess that in that case the whole exercise is pointless?
> > Because every print will at runtime be followed by another print, which
> > will add either the newline or a continuation.
>
> Y
Device Feature List (DFL) defines a feature list structure that creates
a link list of feature headers within the MMIO space to provide an
extensible way of adding features. This patch introduces a kernel module
to provide basic infrastructure to support FPGA devices which implement
the Device Feat
For feature devices, e.g FPGA Management Engine (FME), it may
require fpga_cdev_find_port function to find dedicate port for
further actions, so export this function from feature device
driver module.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-
From: Xiao Guangrong
This patch abstracts the common operations of the sub features, and defines
the feature_ops data structure, including init, uinit and ioctl function
pointers. And this patch adds some common helper functions for FME and AFU
drivers, e.g feature_dev_use_begin/end which are use
From: Kang Luwei
The FPGA Management Engine (FME) provides power, thermal management,
performance counters, partial reconfiguration and other functions. For each
function, it is packaged into a private feature linked to the FME feature
device in the 'Device Feature List'. It's a platform device c
Sometimes f2fs_gc is called with no target victim (e.g. xfstest
generic/027, ndirty_node:545 ndiry_dent:1 ndirty_imeta:513 rsvd_segs:21
free_segs:27, has_not_enough_free_secs will return true). This patch
first merges pages and then converts into sections.
Signed-off-by: Yunlong Song
---
fs/f2fs
From: Kang Luwei
The header register set is always present for FPGA Management Engine (FME),
this patch implements init and uinit function for header sub feature and
introduce several read-only sysfs interfaces for the capability and status.
Sysfs interfaces:
* /sys/class/fpga_region///ports_num
The Device Feature List (DFL) is implemented in MMIO, and features
are linked via the DFLs. This patch enables pcie driver to prepare
enumeration information (e.g locations of all device feature lists
in MMIO) and use common APIs provided by the Device Feature List
framework to enumerate each featu
This patch adds fpga bridge platform driver for FPGA Management Engine.
It implements the enable_set call back for fpga bridge.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-by: Christopher Rauer
Signed-off-by: Wu Hao
v3: rename driver to f
This patch adds fpga region platform driver for FPGA Management Engine.
It register an fpga region with given fpga manager / bridge device.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-by: Christopher Rauer
Signed-off-by: Wu Hao
v3: rename
FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which
need to be supported by all feature devices drivers including FME and AFU.
Userspace application can use these ioctl interfaces to get the API info
and check if specific extension is supported or not in current driver.
This
The port header register set is always present for port, it is mainly
for capability, control and status of the ports that AFU connected to.
This patch implements header sub feature support. Below user interfaces
are created by this patch.
Sysfs interface:
* /sys/class/fpga_region///id
Read-onl
From: Xiao Guangrong
User Accelerated Function Unit sub feature exposes the MMIO region of
the AFU. After valid green bitstream (GBS) is programmed and port is
enabled, then this MMIO region could be accessed.
This patch adds support to enumerate the AFU MMIO region and expose it
to userspace vi
On 26/11/17 11:42 PM, Julia Lawall wrote:
> Although I guess that in that case the whole exercise is pointless?
> Because every print will at runtime be followed by another print, which
> will add either the newline or a continuation.
Yes, in practice the '\n' at the end of every log line is opt
FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which
need to be supported by all feature devices drivers including FME and AFU.
This patch implements above 2 ioctls in FPGA Accelerated Function Unit
(AFU) driver.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Sig
This patch adds fpga manager driver for FPGA Management Engine (FME). It
implements fpga_manager_ops for FPGA Partial Reconfiguration function.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-by: Christopher Rauer
Signed-off-by: Kang Luwei
Signed-
DMA memory regions are required for Accelerated Function Unit (AFU) usage.
These two ioctls allow user space applications to map user memory regions
for dma, and unmap them after use. Iova is returned from driver to user
space application via FPGA_PORT_DMA_MAP ioctl. Application needs to unmap
it a
This patch adds status to fpga-manager data structure, to allow
driver to store full/partial reconfiguration errors and other
status information, and adds one status callback to fpga_manager_ops
to allow fpga_manager to collect latest status when failures are
detected.
The following sysfs file is
For feature devices drivers, both the FPGA Management Engine (FME) and
Accelerated Function Unit (AFU) driver need to expose user interfaces via
the device file, for example, mmap and ioctls.
This patch adds chardev support in the fpga-dfl driver for feature devices,
FME and AFU. It reserves the c
From: Kang Luwei
Partial Reconfiguration (PR) is the most important function for FME. It
allows reconfiguration for given Port/Accelerated Function Unit (AFU).
It creates platform devices for fpga-mgr, fpga-regions and fpga-bridges,
and invokes fpga-region's interface (fpga_region_program_fpga)
On DFL FPGA devices, the Accelerated Function Unit (AFU), can be
reprogrammed for different functions. It connects to the FPGA
infrastructure("blue bistream") via a Port. Port CSRs are implemented
separately from the AFU CSRs to provide control and status of the Port.
Once valid green bitstream is
From: Zhang Yi
The Intel FPGA device appears as a PCIe device on the system. This patch
implements the basic framework of the driver for Intel PCIe device which
is located between CPU and Accelerated Function Units (AFUs), and has
the Device Feature List (DFL) implemented in its MMIO space.
Sign
On Sun, Nov 26, 2017 at 10:43 PM, Milind Chabbi wrote:
> Signed-off-by: Milind Chabbi
> ---
> kernel/events/core.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/events/core.c b/kernel/events/core.c
> index 35747a58ffb4..1b8eae85e9de 100644
> --- a/kernel/event
From: Venkat Prashanth B U
Add supporting driver for Dallas Semiconductor
DS1682 2 wire total elapsed time recorder.
Signed-off-by: Venkat Prashanth B U
---
drivers/rtc/rtc-ds1682.c | 284 +++
1 file changed, 284 insertions(+)
diff --git a/drivers/r
Signed-off-by: Milind Chabbi
---
kernel/events/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 35747a58ffb4..1b8eae85e9de 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2659,7 +2659,8 @@ static int pe
On 11/23/2017 04:11 AM, Mike Kravetz wrote:
> On 11/22/2017 07:28 AM, Michal Hocko wrote:
>> Hi,
>> is there any reason why we enforce the overcommit limit during hugetlb
>> pages migration? It's in alloc_huge_page_node->__alloc_buddy_huge_page
>> path. I am wondering whether this is really an inte
On Mon, 27 Nov 2017, Julia Lawall wrote:
>
>
> On Sun, 26 Nov 2017, Joe Perches wrote:
>
> > On Sun, 2017-11-26 at 19:17 +0100, Julia Lawall wrote:
> > > I just assume that a printk that has no KERN_ is adding a
> > > newline, which is my understanding of Joe's comment.
> >
> > More precisely:
>
On 26/11/17 11:34 PM, Julia Lawall wrote:
> It would probably be better not to mention the KERN_CONT possibility at
> all.
Oh? I don't disagree... but what are we supposed to do in these cases?
The way v2 of my patch works it just says that there is a missing new
line. But Joe calls that a false
On Sun, 26 Nov 2017, Joe Perches wrote:
> On Sun, 2017-11-26 at 19:17 +0100, Julia Lawall wrote:
> > I just assume that a printk that has no KERN_ is adding a
> > newline, which is my understanding of Joe's comment.
>
> More precisely:
>
> Any printk without an initial KERN_CONT prepends a newli
On Mon, Nov 27, 2017 at 02:27:20PM +0800, jiang.bi...@zte.com.cn wrote:
> > On Mon, Nov 27, 2017 at 12:46:27PM +0800, jiang.bi...@zte.com.cn wrote:> >
> > On Mon, Nov 27, 2017 at 09:37:30AM +0800, Jiang Biao wrote:> >
> > > > > This patch make do_shrink_slab more robust when
> > > > > shrinker->co
On Sun, 26 Nov 2017, Logan Gunthorpe wrote:
>
>
> On 26/11/17 11:11 PM, Julia Lawall wrote:
> > I don't have a different warning if the string ends in a space. I have a
> > different warning when one possible control-flow path is fine and another
> > control-flow path is not. The space thing r
On Mon, Nov 27, 2017 at 11:16:46AM +0530, Anshuman Khandual wrote:
> On 11/24/2017 05:34 AM, Minchan Kim wrote:
> > Shakeel Butt reported, he have observed in production system that
> > the job loader gets stuck for 10s of seconds while doing mount
> > operation. It turns out that it was stuck in r
On 26/11/17 11:11 PM, Julia Lawall wrote:
> I don't have a different warning if the string ends in a space. I have a
> different warning when one possible control-flow path is fine and another
> control-flow path is not. The space thing relates to guessing whether
> some other printing API func
Hi Ivan,
Does it make sense to have these in a seperate include file? From what I could
see these defines were only used in fsp2.c so you could just put them directly
in there.
- Alistair
On Thursday, 2 November 2017 4:07:03 PM AEDT Ivan Mikhaylov wrote:
> * add cmu, plbX, l2 register definition
On Thursday, 2 November 2017 4:07:06 PM AEDT Ivan Mikhaylov wrote:
> * add irq error handlers for cmu, plb, opb, mcue, conf
> with debug information output in case of problem.
>
> Signed-off-by: Ivan Mikhaylov
> ---
> arch/powerpc/platforms/44x/fsp2.c | 204
>
Again, I'm not familiar with this specific hardware so can only provide general
comments.
On Thursday, 2 November 2017 4:07:05 PM AEDT Ivan Mikhaylov wrote:
> * tvsense(temperature and voltage sensors) may provide
> erratic sense values which may result in parity errors
> on CMU.
It would be
I'm not familiar with the hardware setup going on here so I can't comment on
it's correctness but the code looks ok. A commit message describing why this
particular setup is needed would be nice though.
Reviewed-by: Alistair Popple
On Thursday, 2 November 2017 4:07:04 PM AEDT Ivan Mikhaylov wrot
On 11/25/2017 12:50 PM, JianKang Chen wrote:
> From: Jiankang Chen
>
> __get_free_pages will return an 64bit address in 64bit System
> like arm64 or x86_64. And this comment really confuse new bigenner of
> mm.
Normally its not 64 bit virtual address though CPU architecture supports
64 bits. But
pci_flr_wait() and pci_af_flr() functions assume graceful return even
though the device is inaccessible under error conditions.
Return -ENOTTY in error cases so that __pci_reset_function_locked() can
try other reset types if AF_FLR/FLR reset fails.
Signed-off-by: Sinan Kaya
---
drivers/pci/pci.
Commit b014e96d1abb ("PCI: Protect pci_error_handlers->reset_notify() usage
with device_lock()") added protection around pci_dev_restore() function so
that device specific remove callback does not cause a race condition
against hotplug.
pci_dev_lock() usage has been forgotten in two different plac
Rev 3.1 Sec 2.3.1 Request Handling Rules says a device can issue CRS
following a D3hot->D0 transition. Add pci_dev_wait() call to see if
device is available before returning.
Signed-off-by: Sinan Kaya
---
drivers/pci/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drive
Getting ready to return an error from pci_reset_bridge_secondary_bus() when
device is unreachable.
Signed-off-by: Sinan Kaya
---
drivers/pci/pci.c | 4 +++-
include/linux/pci.h | 2 +-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 87
Introduce pci=resetpolltime= argument to override 60 seconds poll time in
units of milliseconds.
Signed-off-by: Sinan Kaya
---
Documentation/admin-guide/kernel-parameters.txt | 2 ++
drivers/pci/pci.c | 13 -
2 files changed, 10 insertions(+), 5 deletio
Rev 3.1 Sec 2.3.1 Request Handling Rules indicates that a device can issue
CRS following secondary bus reset. Handle device presence gracefully.
Signed-off-by: Sinan Kaya
---
drivers/pci/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci
Rev 3.1 Sec 2.3.1 Request Handling Rules:
Valid reset conditions after which a device is permitted to return CRS
are:
* Cold, Warm, and Hot Resets,
* FLR
* A reset initiated in response to a D3hot to D0 uninitialized
Try to reuse FLR implementation towards other reset types.
Signed-off-by: Sinan
+Cc aarca...@redhat.com, xe...@parallels.com, linux...@kvack.org
On Fri, Oct 27, 2017 at 11:46:13AM +0200, Dmitry Vyukov wrote:
> On Fri, Oct 27, 2017 at 11:44 AM, syzbot
>
> wrote:
> > Hello,
> >
> > syzkaller hit the following crash on
> > a31cc455c512f3f1dd5f79cac8e29a7c8a617af8
> > git://git.
Previously the rbtree was used to link generic metrics.
This patches adds new ctx/type/stat into rbtree keys because we
will use this rbtree to maintain shadow metrics to replace original
a couple of static arrays for supporting per-thread shadow stats.
Signed-off-by: Jin Yao
---
tools/perf/uti
In current stat-shadow.c, the rbtree deleting is ignored.
The patch reconstructs the code of rblist init/free, and adds
the implementation to node_delete method of rblist.
Signed-off-by: Jin Yao
---
tools/perf/util/stat-shadow.c | 33 +
tools/perf/util/stat.h
v2:
---
Update according to Jiri's comments. The major modifications are:
1. Remove unnecessary memset for runtime_stat and
walltime_nsecs_stats.
2. Remove init_saved_rblist/free_saved_rblist and move the codes
to runtime_stat__init/runtime_stat__free.
3. Change function name from perf_sta
Perf already has a function thread_map__new_by_uid() which can
enumerate all threads from /proc by uid.
This patch creates a static function enumerate_threads() which
reuses the common code in thread_map__new_by_uid() to enumerate
threads from /proc.
The enumerate_threads() is shared by thread_ma
There are many threads reported if we enable '--per-thread'
globally.
1. Most of the threads are not counted or counting value 0.
This patch removes these threads.
2. We also resort the threads in display according to the
counting value. It's useful for user to see the hottest
threads easily.
Fo
In previous patches, we have reconstructed the code and let
it not access the static variables directly.
This patch removes these static variables.
Signed-off-by: Jin Yao
---
tools/perf/util/stat-shadow.c | 64 ++-
tools/perf/util/stat.h| 1 +
2
After perf_evlist__create_maps() being executed, we can get all
threads from /proc. And via thread_map__nr(), we can also get
the number of threads.
With the number of threads, the patch allocates a buffer which
will record the shadow stats for these threads.
The buffer pointer is saved in stat_c
Currently, if we execute 'perf stat --per-thread' without specifying
pid/tid, perf will return error.
root@skl:/tmp# perf stat --per-thread
The --per-thread option is only available when monitoring via -p -t options.
-p, --pidstat events on existing process id
-t, --tidstat
Currently we have a rblist__delete() which is used to delete a rblist.
While rblist__delete() will free the pointer of rblist at the end.
It's inconvenience for user to delete a rblist which is not allocated
by something like malloc(). For example, the rblist is defined in a
data structure.
This
Perf has a set of static variables to record the runtime shadow
metrics stats.
While if we want to record the runtime shadow stats for per-thread,
it will be the limitation. This patch creates a structure and the
next patches will use this structure to update the runtime shadow
stats for per-threa
The functions perf_stat__update_shadow_stats() and
perf_stat__print_shadow_statss() are called to update
and print the shadow stats on a set of static variables.
But the static variables are the limitations to support
per-thread shadow stats.
This patch lets the perf_stat__update_shadow_stats() s
On Sun, 26 Nov 2017, Logan Gunthorpe wrote:
>
>
> On 26/11/17 03:29 PM, Joe Perches wrote:
> > This proposal has a very high false positive rate.
>
> The only actual false positive you've pointed out is the one that is
> just incorrect in the wrong way (the author should have used a KERN_CONT
>
On Sun, 26 Nov 2017, Joe Perches wrote:
> On Sun, 2017-11-26 at 23:44 +0100, Julia Lawall wrote:
> > My semantic patch and results are below. The semantic patch has some
> > features that may or may not be desired:
> >
> > 1. It goes beyond printk, pr_xxx, dev_xxx, and netdev_xxx, by finding
>
> Applies on today's -tip tree. Please consider for v4.16.
No numbers on the improvements?
-Andi
On Wed, Nov 08, 2017 at 05:51:36PM +0100, Lukasz Odzioba wrote:
> Hi,
> I found this patch by accident and it got my attention.
> I think we can't make this name arbitrarily long because bind syscall checks
> addrlen before feeding protocol with it.
> Current limit on my machine is 128 bytes and I
On Mon, Nov 20, 2017 at 06:47:52AM +, Srinivas Kandagatla wrote:
> >>+ * -ENOTCONN: If the transmitted message was not ACKed by destination
> >>+ * device.
> >
> >I am preferring ENODATA in SDW for this case, as Slaves didnt respond or
> >ACK.
> Isn't that a timeout error then.
>
> ENODATA is
On Mon, Nov 20, 2017 at 06:47:58AM +, Srinivas Kandagatla wrote:
> >>>thanks for the comments.
> >>>
> >>>
> >>>On 16/11/17 16:42, Vinod Koul wrote:
> On Wed, Nov 15, 2017 at 02:10:34PM +,srinivas.kandaga...@linaro.org
> wrote:
>
> >+static void slim_dev_release(struct de
On 11/24/2017 05:34 AM, Minchan Kim wrote:
> Shakeel Butt reported, he have observed in production system that
> the job loader gets stuck for 10s of seconds while doing mount
> operation. It turns out that it was stuck in register_shrinker()
> and some unrelated job was under memory pressure and s
* Dave Jones wrote:
> On Mon, Nov 13, 2017 at 11:44:02PM +, Linux Kernel wrote:
> > Web:
> https://git.kernel.org/torvalds/c/aa35f896979d9610bb11df485cf7bb6ca241febb
> > Commit: aa35f896979d9610bb11df485cf7bb6ca241febb
> > Parent: c6a960bbf6a36572a06bde866d94a7338c7f256a
>
Adds support to enable/disable a sensor group. This can be used to
select the sensor groups that needs to be copied to main memory by
OCC. Sensor groups like power, temperature, current, voltage,
frequency, utilization can be enabled/disabled at runtime.
Signed-off-by: Shilpasri G Bhat
---
The sk
-Original Message-
From: Colin King [mailto:colin.k...@canonical.com]
Sent: 24 November 2017 19:14
To: Gurumurthy, Anil ; Kalluru, Sudarsana
; James E . J . Bottomley
; Martin K . Petersen ;
linux-s...@vger.kernel.org
Cc: kernel-janit...@vger.kernel.org; linux-kernel@vger.kernel.org
Su
On 27/11/17 05:03, Andy Lutomirski wrote:
> On Sun, Nov 26, 2017 at 9:10 AM, Boris Ostrovsky
> wrote:
>> Andy,
>>
>> (Can't find the original patch in my mailbox)
>>
>> This hunk from 1d3e53e8624a ("x86/entry/64: Refactor IRQ stacks and make
>> them NMI-safe")
>>
>>
>> diff --git a/arch/x86/entry/
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