On Wed 27 Apr 09:22 PDT 2016, David Miller wrote:
> From: Bjorn Andersson
> Date: Tue, 26 Apr 2016 22:48:05 -0700
>
> > + rc = qcom_smd_send(qdev->channel, skb->data, skb->len);
>
> I truly dislike adding networking protocols that depend upon some
> piece of infrastructure that only some plat
* Tony Lindgren [160427 09:39]:
> * Tero Kristo [160427 04:22]:
> > On 26/04/16 20:54, J.D. Schroeder wrote:
> > >From: "J.D. Schroeder"
> > >
> > >This commit fixes the clock data inside the DRA7xx clocks device tree
> > >structure for the gmac_gmii_ref_clk_div clock. This clock is actually
> >
Linus,
I2C has one buildfix, one ABBA deadlock fix and three simple 'add ID'
patches for you. Please pull.
Thanks,
Wolfram
The following changes since commit bf16200689118d19de1b8d2a3c314fc21f5dc7bb:
Linux 4.6-rc3 (2016-04-10 17:58:30 -0700)
are available in the git repository at:
gi
On Tue, Apr 26, 2016 at 8:58 PM, Sergey Senozhatsky
wrote:
> Hello,
>
> On (04/26/16 17:08), Dan Streetman wrote:
> [..]
>> -static void __zswap_pool_release(struct rcu_head *head)
>> +static void __zswap_pool_release(struct work_struct *work)
>> {
>> - struct zswap_pool *pool = container_of(
Provides an optional config (CONFIG_SLAB_FREELIST_RANDOM) to randomize
the SLAB freelist. The list is randomized during initialization of a new
set of pages. The order on different freelist sizes is pre-computed at
boot for performance. Each kmem_cache has its own randomized
freelist. Before pre-co
On 27 April 2016 at 05:21, Suzuki K Poulose wrote:
> On 26/04/16 23:10, Mathieu Poirier wrote:
>>
>> This patch implement the AUX area interfaces required to
>> use the TMC (configured as an ETF) from the Perf sub-system.
>>
>> The heuristic is heavily borrowed from the ETB10 implementation.
>>
>>
On Wed, Apr 27, 2016 at 1:05 PM, Josh Triplett wrote:
> On Wed, Apr 27, 2016 at 11:20:26AM -0400, Josh Boyer wrote:
>> On Wed, Apr 27, 2016 at 10:57 AM, Môshe van der Sterre wrote:
>> >
>> > On 04/27/2016 03:56 PM, Josh Boyer wrote:
>> >>
>> >> On Wed, Apr 27, 2016 at 9:26 AM, Môshe van der Sterr
On 27/04/16 18:22, Mathieu Poirier wrote:
On 27 April 2016 at 05:21, Suzuki K Poulose wrote:
On 26/04/16 23:10, Mathieu Poirier wrote:
This patch implement the AUX area interfaces required to
use the TMC (configured as an ETF) from the Perf sub-system.
The heuristic is heavily borrowed from
On Wednesday 27 April 2016 12:20:02 Paul Moore wrote:
> > diff --git a/include/linux/tty.h b/include/linux/tty.h
> > index 3b09f235db66..17b247c94440 100644
> > --- a/include/linux/tty.h
> > +++ b/include/linux/tty.h
> > @@ -371,6 +371,7 @@ extern void proc_clear_tty(struct task_struct *p);
> > ex
I'm announcing the release of the 3.12.59 kernel.
All users of the 3.12 kernel series must upgrade.
The updated 3.12.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
linux-3.12.y
and can be browsed at the normal kernel.org git web browser:
On Wed, 27 Apr 2016, Ben Hutchings wrote:
> 3.16.35-rc1 review patch. If anyone has any objections, please let me know.
>
> --
>
> From: Sebastian Ott
>
> commit 80c544ded25ac14d7cc3e555abb8ed2c2da99b84 upstream.
>
> The function measurement block must not cross a page boundar
rrpc does not save any metadata on a given request. Thus, do not attempt
to free the metadata dma region.
Signed-off-by: Javier González
---
drivers/lightnvm/rrpc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index c7fef71..ffcfee6 10064
Enable metadata to be sent to the device through the metadata field on
the physical rw nvme command. When a single ppa is sent to the device, a
64-bit integer can be sent as metadata; when a ppa list is sent, a
64-bit integer list mapping to the ppa list can be used to send
metadata.
Signed-off-by
Until now, the dma pool have been exclusively used to allocate the ppa
list being sent to the device. In pblk (upcoming), we use these pools to
allocate metadata too. Thus, we generalize the names of some variables
on the dma helper functions to make the code more readable.
Signed-off-by: Javier G
On Wed, Apr 27, 2016 at 11:44:53AM -0500, Bjorn Helgaas wrote:
> On Wed, Apr 27, 2016 at 12:17:58PM +0100, Lorenzo Pieralisi wrote:
> > On Tue, Apr 26, 2016 at 09:26:49PM -0500, Bjorn Helgaas wrote:
> > > On Fri, Apr 15, 2016 at 07:06:37PM +0200, Tomasz Nowicki wrote:
> > > > As we now have valid P
Hi Mark,
Sorry. Follows bellow.
On 27-04-2016 11:05, Jose Abreu wrote:
> This patch updates documentation for the Designware I2S
> driver.
>
> Signed-off-by: Jose Abreu
> Acked-by: Rob Herring
> Cc: Rob Herring
> Cc: Carlos Palminha
> Cc: Alexey Brodkin
> Cc: devicet...@vger.kernel.org
> Cc:
For MST encoders, the encoder struct is stored in the intel_dp_mst
struct, not a intel_digital_port struct.
This fixes issues with hotplugging MST displays that support MST audio,
where hotplugging had a surprisingly good chance of accidentally
overwriting other parts of the kernel leading to seem
Hi,
Follow up on preparation patches, here is a patch exporting hardware
attributes of open-channel SSDs and LightNVM configuration to
user-space through sysfs.
Thanks,
Simon A. F. Lund (1):
lightnvm: expose configuration through sysfs
Documentation/ABI/testing/sysfs-lightnvm | 244 +++
On Wed, Apr 27, 2016 at 06:32:42PM +0100, Jose Abreu wrote:
> Hi Mark,
>
> Sorry. Follows bellow.
>
> On 27-04-2016 11:05, Jose Abreu wrote:
I can't apply a quote of a patch, please resend.
signature.asc
Description: PGP signature
On Wed, Apr 27, 2016 at 04:34:53PM +0100, Jon Hunter wrote:
>
> On 22/04/16 12:22, Mark Rutland wrote:
>
> [snip]
>
> I am not sure if it will be popular to add Tegra specific clock names
> to the GIC DT docs. However, in that case, then possibly the only
> alternative is to move
Looks better.
Merged. :)
Thanks,
On Wed, Apr 27, 2016 at 10:22:20PM +0800, Chao Yu wrote:
> Hi Jaegeuk, Yunlei,
>
> On 2016/4/26 8:07, Jaegeuk Kim wrote:
> > Let's consider a race condition between f2fs_add_regular_entry and
> > find_target_dentry.
> >
> > 1.
> > - f2fs_add_regular_entry update
On Wed, Apr 27, 2016 at 10:18:57AM -0700, Simon A. F. Lund wrote:
> --- a/include/linux/lightnvm.h
> +++ b/include/linux/lightnvm.h
> @@ -174,6 +174,7 @@ struct nvm_id_group {
> u16 cpar;
>
> struct nvm_id_lp_tbl lptbl;
> + struct kobject kobj;
> };
>
> struct nvm_addr_for
On Apr 27, 2016, at 5:54 AM, Michal Hocko wrote:
>
> From: Michal Hocko
>
> xfs has defined PF_FSTRANS to declare a scope GFP_NOFS semantic quite
> some time ago. We would like to make this concept more generic and use
> it for other filesystems as well. Let's start by giving the flag a
> more
On Wednesday 27 April 2016 19:53:51 Felipe Balbi wrote:
> Arnd Bergmann writes:
> > On Wednesday 27 April 2016 16:50:19 Catalin Marinas wrote:
> >> On Wed, Apr 27, 2016 at 04:11:17PM +0200, Arnd Bergmann wrote:
> >> > On Wednesday 27 April 2016 14:59:00 Catalin Marinas wrote:
> >> > >
> >> > > I
Commit 2d4d1eea540b ("lib/mpi: Add mpi sgl helpers") added
mpi_write_to_sgl() which generates traps due to unaligned
access on some platforms like sparc. Fix this by using
the get_unaligned* and put_unaligned* functions.
Fixes: 2d4d1eea540b ("lib/mpi: Add mpi sgl helpers")
Signed-off-by: Sowmini
Am Montag, 25. April 2016, 12:35:32 schrieb Andi Kleen:
Hi Andi,
> > > > If it is the latter, can you explain where the scalability issue comes
> > > > in?
> > >
> > > A single pool which is locked/written to does not scale. Larger systems
> > > need multiple pools
> >
> > That would imply that
The MFD_VEXPRESS_SYSREG driver selects CLKSRC_MMIO, which in turn
conflicts with ARCH_USES_GETTIMEOFFSET, causing a harmless Kconfig
warning when it is set:
warning: (ARCH_MVEBU && ARCH_DIGICOLOR && ARCH_GEMINI && ARCH_KEYSTONE &&
ARCH_MOXART && ARCH_MXS && PLAT_SPEAR && ARCH_SUNXI && ARCH_TEGRA
On Wed, 27 Apr 2016, Arnd Bergmann wrote:
> I've looked at the usb HCD code now and see this:
>
> struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver,
> struct device *dev, const char *bus_name,
> struct usb_hcd *primary_hcd)
> {
> ...
>
An open-channel SSD exposes its geometry to the host. Allowing the host to know
the boundaries of the LUNs, flash blocks, and flags pages, enabling the host to
write to its physical media.
The configuration information is kept within the kernel, and not exported to
user-space for consumption. This
Hi,
On Tue 26-04-16 09:55:23, Jens Axboe wrote:
> Since the dawn of time, our background buffered writeback has sucked.
> When we do background buffered writeback, it should have little impact
> on foreground activity. That's the definition of background activity...
> But for as long as I can reme
On Wed, Apr 27, 2016 at 7:38 PM, Mark Rutland wrote:
> On Wed, Apr 27, 2016 at 04:34:53PM +0100, Jon Hunter wrote:
>> On 22/04/16 12:22, Mark Rutland wrote:
>> [snip]
>>
>> I am not sure if it will be popular to add Tegra specific clock names
>> to the GIC DT docs. However, in that case,
Andi Kleen wrote:
> There is also the third problem of horrible scalability of /dev/random
> output on larger systems, for which patches are getting ignored.
I came up with some very pretty code to fix this, which
tried to copy_to_user with a lock held.
After all my attempts to fix that fatal fla
This patch implement the AUX area interfaces required to
use the TMC (configured as an ETF) from the Perf sub-system.
The heuristic is heavily borrowed from the ETB10 implementation.
Signed-off-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-tmc-etf.c | 199 +++
From: Hanjun Guo
Rework numa_add_memblk() to update the parameter "u64 size" to "u64
end", this will make it consistent with x86 and simplifies the arm64
ACPI NUMA code to be added later.
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
Signed-off-by: David Daney
---
arch/arm64/mm/num
From: Hanjun Guo
acpi_numa_memory_affinity_init() will be reused by arm64. Move it to
drivers/acpi/numa.c to facilitate reuse.
No code change.
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
Signed-off-by: David Daney
---
arch/x86/mm/srat.c | 57 ---
From: Hanjun Guo
Add function needed for cpu to node mapping, and enable ACPI based
NUMA for ARM64 in Kconfig
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
[david.da...@cavium.com added ACPI_NUMA default to y for ARM64]
Signed-off-by: David Daney
---
drivers/acpi/Kconfig | 4 ++--
From: David Daney
Loosely based on code from Robert Richter and Hanjun Guo.
Improve out of range node detection as well as allow for Larger SRAT
entities.
Add printing of nice messages.
Signed-off-by: David Daney
---
drivers/acpi/numa.c | 15 +++
1 file changed, 11 insertions(+),
On Wed, 2016-04-27 at 08:59 -0700, Ben Greear wrote:
> On 04/26/2016 04:02 PM, Ben Hutchings wrote:
> >
> > 3.2.80-rc1 review patch. If anyone has any objections, please let me know.
> I would be careful about this. It causes regressions when sending
> PACKET_SOCKET buffers from user-space to ve
From: Hanjun Guo
acpi_numa is default to 0, it's set to -1 when disable acpi numa or
when a bad SRAT is parsed, and it's only consumed in srat_disabled()
(compare it with 0) to continue parse the SRAT or not, so we don't
need to set acpi_numa to 1 when we get a valid SRAT entry.
Signed-off-by: H
From: Hanjun Guo
Introduce a new file to hold ACPI based NUMA information parsing from
SRAT and SLIT.
SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
ranges to Proximity Domain mapping. SLIT has the information of inter
node distances(relative number for access latency).
From: Hanjun Guo
Cleanup acpi_numa_processor_affinity_init() in preparation for its
move to drivers/acpi/numa.c. It will be reused by arm64, this has no
functional change.
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
Signed-off-by: David Daney
---
arch/x86/mm/srat.c | 21 +---
On Tue, Apr 26, 2016 at 09:39:04AM -0700, Andy Lutomirski wrote:
> Hi all-
>
> I've been playing with context switching lately, and I'm going to start
> sending out some of the patches that should be mostly self-contained and
> ready for -tip.
>
> Here's a little batch to start improving switch_m
From: David Daney
As noted by Dennis Chen, we don't want to print "No NUMA configuration
found" if NUMA was forced off from the command line.
Change the type of numa_off to bool, and clean up printing code.
Print "NUMA disabled" if forced off on command line and "No NUMA
configuration found" if
On Wednesday 27 April 2016 13:59:13 Alan Stern wrote:
> On Wed, 27 Apr 2016, Arnd Bergmann wrote:
>
> > I've looked at the usb HCD code now and see this:
> >
> > struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver,
> > struct device *dev, const char *bus_name,
> >
From: Hanjun Guo
Just do some cleanups to replace printk with pr_fmt().
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
Signed-off-by: David Daney
---
drivers/acpi/numa.c | 17 +++--
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/acpi/numa.c b/driv
From: Hanjun Guo
bad_srat() and srat_disabled() are shared by x86 and follow-on arm64
patches. Move them to drivers/acpi/numa.c in preparation for arm64
support.
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
[david.da...@cavium.com moved definitions to drivers/acpi/numa.c]
Signed-of
Hi Chao,
On Wed, Apr 27, 2016 at 09:41:48PM +0800, Chao Yu wrote:
> From: Chao Yu
>
> The following condition can happen in a preemptible kernel, it may cause
> checkpointer hunging.
>
> CPU0: CPU1:
> - write_checkpoint
> - do_checkpoint
>- wait_on_all_pag
From: Hanjun Guo
ACPI_DEBUG_PRINT is a bit fragile in acpi/numa.c, the first thing
is that component ACPI_NUMA(0x8000) is not described in the
Documentation/acpi/debug.txt, and even not defined in the struct
acpi_dlayer acpi_debug_layers which we can not dynamically enable/disable
it with /sy
From: Hanjun Guo
Identical implementations of acpi_numa_slit_init() are used by both
x86 and follow-on arm64 support. Move it to drivers/acpi/numa.c, and
guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own
architecture specific implementation.
No code change.
Signed-off-by: Hanjun G
Some I2C adapters don't raise SDA by themselves when sending a bit. This
behavior can be seen with the DDC channel of SiS 300 graphics cards.
This patch adds the flag |set_sdahi| to |struct i2c_algo_bit_data|. With
the flags set to true, the I2C bit algo will raise SDA before reading each
bit from
From: Robert Richter
Since acpi_numa_arch_fixup() is only used in arch ia64, move it there
to make a generic interface easier. This avoids empty function stubs
or some complex kconfig options for x86 and arm64.
Signed-off-by: Robert Richter
Reviewed-by: Hanjun Guo
Signed-off-by: David Daney
-
From: Hanjun Guo
The argument "header" for acpi_table_print_srat_entry()
is always checked before the function is called, it's
duplicate to check it again, remove it.
Signed-off-by: Hanjun Guo
Signed-off-by: Robert Richter
Signed-off-by: David Daney
---
drivers/acpi/numa.c | 3 ---
1 file ch
From: David Daney
Based on git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
for-next/core branch at commit 643d703d2d2d ("arm64: compat: Check for
AArch32 state")
ACPI 5.1 already introduced NUMA support for ARM64, which can get the
NUMA domain information from SRAT and SLIT table,
On Wed, 2016-04-27 at 19:27 +0200, Sebastian Ott wrote:
> On Wed, 27 Apr 2016, Ben Hutchings wrote:
> >
> > 3.16.35-rc1 review patch. If anyone has any objections, please let me know.
> >
> > --
> >
> > From: Sebastian Ott
> >
> > commit 80c544ded25ac14d7cc3e555abb8ed2c2da99b8
On 04/27/2016 08:25 AM, Catalin Marinas wrote:
On Fri, Apr 22, 2016 at 05:35:16PM -0700, Stephen Boyd wrote:
Quoting Catalin Marinas (2016-04-21 03:35:12)
On Tue, Apr 19, 2016 at 06:04:27PM -0700, Stephen Boyd wrote:
From: Laura Abbott
Some systems are memory constrained but they need to loa
This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled.
The driver has to provide a (struct drm_framebuffer_funcs *)->dirty()
callback to get notification of fbdev framebuffer changes.
If the dirty() hook is set, then fb_deferred_io is set up automatically
by the helper.
Two funct
On 04/27/2016 12:01 PM, Jan Kara wrote:
Hi,
On Tue 26-04-16 09:55:23, Jens Axboe wrote:
Since the dawn of time, our background buffered writeback has sucked.
When we do background buffered writeback, it should have little impact
on foreground activity. That's the definition of background activi
Use the fbdev deferred io support in drm_fb_helper.
The (struct fb_ops *)->fb_{fillrect,copyarea,imageblit} functions will
now schedule a worker instead of being flushed directly like it was
previously (recorded when in atomic).
This patch has only been compile tested.
Signed-off-by: Noralf Trønn
Now that drm_fb_helper gets deferred io support, the
drm_fb_helper_sys_{fillrect,copyarea,imageblit} functions will schedule
a worker that will call the (struct drm_framebuffer *)->funcs->dirty()
function. This will break this driver so use the
sys_{fillrect,copyarea,imageblit} functions directly.
Now that drm_fb_helper gets deferred io support, the
drm_fb_helper_sys_{fillrect,copyarea,imageblit} functions will schedule
a worker that will call the (struct drm_framebuffer *)->funcs->dirty()
function. This will break this driver so use the
sys_{fillrect,copyarea,imageblit} functions directly.
This adds deferred io support to drm_fb_helper.
The fbdev framebuffer changes are flushed using the callback
(struct drm_framebuffer *)->funcs->dirty() by a dedicated worker
ensuring that it always runs in process context.
Signed-off-by: Noralf Trønnes
---
Changes since v2:
- FB_DEFERRED_IO is n
Export fb_deferred_io_mmap so drivers can change vma->vm_page_prot.
When the framebuffer memory is allocated using dma_alloc_writecombine()
instead of vmalloc(), I get cache syncing problems on ARM.
This solves it:
static int drm_fbdev_cma_deferred_io_mmap(struct fb_info *info,
This patchset adds fbdev deferred io support to drm_fb_helper and
drm_fb_cma_helper.
It channels fbdev mmap and fb_{write,fillrect,copyarea,imageblit} damage
through the (struct drm_framebuffer_funcs)->dirty callback on the
fb_helper framebuffer which will always run in process context.
I have al
On Wed, Apr 27, 2016 at 04:15:35PM +0100, David Woodhouse wrote:
> On Wed, 2016-04-27 at 18:05 +0300, Michael S. Tsirkin wrote:
> >
> > I really don't get it.
> >
> > There's exactly one device that works now and needs the work-around and
> > so that we need to support, and that is virtio. It hap
Use the fbdev deferred io support in drm_fb_helper which mirrors the
one qxl has had.
This patch has only been compile tested.
Signed-off-by: Noralf Trønnes
---
Changes since v2:
- The drm_clip_rect_{width/height} functions are dropped, so open code it
Changes since v1:
- Add FIXME about specia
On 04/27/2016 07:41 PM, Greg KH wrote:
On Wed, Apr 27, 2016 at 10:18:57AM -0700, Simon A. F. Lund wrote:
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -174,6 +174,7 @@ struct nvm_id_group {
u16 cpar;
struct nvm_id_lp_tbl lptbl;
+ struct kobject kob
On 04/27/2016 10:24 AM, Arnd Bergmann wrote:
> On Wednesday 27 April 2016 12:20:02 Paul Moore wrote:
>>> diff --git a/include/linux/tty.h b/include/linux/tty.h
>>> index 3b09f235db66..17b247c94440 100644
>>> --- a/include/linux/tty.h
>>> +++ b/include/linux/tty.h
>>> @@ -371,6 +371,7 @@ extern void
On Wed, Apr 27, 2016 at 10:41:32AM -0500, Alex Thorlton wrote:
Adding Boris to Cc.
> Hey guys,
>
> We've hit an issue that we haven't seen before on recent community
> kernels. Hoping that you can provide some insight.
>
> Late last week I hit this bad paging request in uv_system_init on one o
The read pointer (read_ptr) needs to be adjusted only if its value
has gone beyond the length of the memory buffer.
Reported-by: Suzuki K Poulose
Signed-off-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etb10.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
2016-04-27 18:46 GMT+03:00 Bin Liu :
> Hi,
>
> On Wed, Apr 27, 2016 at 09:51:58AM +0300, Max Uvarov wrote:
>> Fix soft lockup when resetting remote device attached
>> to usb host. Configuration:
>> pppd -> musb hub -> usb-serial -> gsm modem
>
> I have heard a few reports similar to this symptom, b
This patch adds a new state RWSEM_READER_OWNED to the owner field
to indicate that readers currently own the lock. This enables us to
address the following 2 issues in the rwsem optimistic spinning code:
1) rwsem_can_spin_on_owner() will disallow optimistic spinning if
the owner field is NULL
Am Dienstag, den 26.04.2016, 09:08 +1000 schrieb Dave Chinner:
[...]
> >
> > >
> > > That said, I'm not sure whether there's a notable benefit of
> > > idling
> > > for
> > > 50ms over just scheduling out when we've hit the target lsn. It
> > > seems
> > > like that anybody who pushes the target
Hi,
On 27-04-16 18:30, Mark Brown wrote:
On Wed, Apr 27, 2016 at 06:04:53PM +0200, Hans de Goede wrote:
On 27-04-16 17:48, Mark Brown wrote:
Well, I guess someone can just measure what happens?
What happens will likely depend on the pmic input voltage,
which can be either 5V from a charge
Hi,
Here is the 5th version of the patchset for probe-cache and
initial SDT support which are going to be perf-cache finally.
The previous version is here; https://lkml.org/lkml/2016/4/26/179
This version fixes a build bug on "make build-test", removed
accepted patches, and fold buildid-cache s
From: Masami Hiramatsu
Replace many fixed-length char array with strbuf to
stringify perf_probe_event and probe_trace_event etc.
Signed-off-by: Masami Hiramatsu
Signed-off-by: Masami Hiramatsu
---
Changes in v4:
- Update for the latest kernel.
- Remove "probe-event.c" from title and body, b
From: Masami Hiramatsu
Add --cache option to cache the probe definitions. This
just saves the result of the dwarf analysis to probe cache.
Signed-off-by: Masami Hiramatsu
Signed-off-by: Masami Hiramatsu
---
Changes in v5:
- Move probe_cache* definitions. (code cleanup)
Changes in v4:
-
From: Hemant Kumar
This patch serves the initial support to identify and list SDT events in
binaries.
When programs containing SDT markers are compiled, gcc with the help of
assembler
directives identifies them and places them in the section ".note.stapsdt". To
find
these markers from the bina
From: Masami Hiramatsu
perf-probe --del removes caches when --cache is given.
Note that the delete pattern is not same as normal events.
If you cached probes with event name, --del "eventname"
works as expected. However, if you skipped it, the cached
probes doesn't have actual event name. In tha
From: Masami Hiramatsu
perf probe --list shows all cached probes when --cache
is given. Each caches are shown with on which binary that
probed. e.g.
-
# perf probe --cache vfs_read \$params
# perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params
# perf probe --cache --list
From: Masami Hiramatsu
Use new lsdir() for looking up buildid caches. This changes
logic a bit to ignore all dot files, since the build-id
cache must not start with dot.
Signed-off-by: Masami Hiramatsu
Signed-off-by: Masami Hiramatsu
---
tools/perf/util/build-id.c | 30 +
From: Masami Hiramatsu
Use path/to/bin/buildid/elf instead of path/to/bin/buildid
to store corresponding elf binary.
This also stores vdso in buildid/vdso, kallsyms in buildid/kallsyms.
Note that the existing caches are not updated until user adds
or updates the cache. Anyway, if there is the ol
From: Masami Hiramatsu
Before analyzing debuginfo, try to find a corresponding entry
from probe cache always. This does not depend on --cache,
the --cache enables to store/update cache, but looking up
the cache is always enabled.
Signed-off-by: Masami Hiramatsu
Signed-off-by: Masami Hiramatsu
From: Masami Hiramatsu
To improbe usability, support %[PROVIDER:]SDTEVENT format to
add new probes on SDT and cached events.
e.g.
# perf probe -x /lib/libc-2.17.so %lll_lock_wait_private
Added new event:
sdt_libc:lll_lock_wait_private (on %lll_lock_wait_private in
/usr/lib/libc
From: Masami Hiramatsu
Show SDT and pre-cached events by perf-list with "sdt". This also
shows the binary and build-id where the events are placed only
when there are same name events on different binaries.
e.g.
# perf list sdt
List of pre-defined events (to be used in -e):
sdt_l
The maximum supported voltage for ldo_io# is 3.3V, but on cold
boot the selector comes up at 0x1f, which maps to 3.8V.
This causes _regulator_get_voltage() to fail with -EINVAL which
causes regulator registration to fail when constrains are used:
[1.467788] vcc-touchscreen: failed to get the
From: Masami Hiramatsu
Skip SDTs placed in invalid (non-exist, or older version)
binaries. Note that perf-probe --cache --list and
perf-probe --cache --del still handle all the caches
including invalid binaries.
Signed-off-by: Masami Hiramatsu
Signed-off-by: Masami Hiramatsu
---
Changes in v4
From: Masami Hiramatsu
Allow user to set group name for adding new event.
Note that user must ensure that the group name doesn't
conflict with existing group name carefully.
E.g. Existing group name can conflict with other events.
Especially, using the group name reserved for kernel
modules can h
Support @BUILDID or @FILE suffix for SDT events. This allows
perf to add probes on SDTs/pre-cached events on given FILE
or the file which has given BUILDID (also, this complements
BUILDID.)
For example, both gcc and libstdc++ has same SDTs as below.
If you would like to add a probe on sdt_libstdcxx
Allo glob wildcard for reusing cached/SDT events. This also
automatically find the target binaries, e.g.
# perf probe -a %sdt_libc:\*
This example adds probes for all SDT in libc.
Note that the SDTs must have been scanned by perf buildid-cache.
Signed-off-by: Masami Hiramatsu
---
tools/perf/
From: Masami Hiramatsu
perf buildid-cache --add scans given binary and add
the SDT events to probe cache. "sdt_" prefix is appended for
all SDT providers to avoid event-name clash with other pre-defined
events. It is possible to use the cached SDT events as other cached
events, via perf probe --
On Wednesday 27 April 2016 08:49 PM, Lee Jones wrote:
On Wed, 30 Mar 2016, Laxman Dewangan wrote:
+#define MAX77620_MFD_CELL_RES(_name, _res) \
+ { \
+ .name = (_name),
+++ Petr Mladek [25/04/16 17:14 +0200]:
LivePatch framework deserves some documentation, definitely.
This is an attempt to provide some basic info. I hope that
it will be useful for both LivePatch producers and also
potential developers of the framework itself.
Signed-off-by: Petr Mladek
Nice
Oops, I missed to fix the SEGV bug.
I'll fix it and resend as 5.1.
Thanks,
On Thu, 28 Apr 2016 03:39:17 +0900
Masami Hiramatsu wrote:
> Allo glob wildcard for reusing cached/SDT events. This also
> automatically find the target binaries, e.g.
>
> # perf probe -a %sdt_libc:\*
>
> This exam
On Tue, 26 Apr 2016 11:59:34 -0300
Arnaldo Carvalho de Melo wrote:
> Em Tue, Apr 26, 2016 at 11:40:47PM +0900, Masami Hiramatsu escreveu:
> > On Tue, 26 Apr 2016 10:36:57 -0300
> > Arnaldo Carvalho de Melo wrote:
> >
> > > Em Tue, Apr 26, 2016 at 06:02:11PM +0900, Masami Hiramatsu escreveu:
> >
On Wed, Apr 27, 2016 at 9:11 AM, Tejun Heo wrote:
>
> Unfortunately, we were missing a smp_rmb() after clearing PENDING for
> execution, so nothing guaranteed visibility of the changes that a
> queueing loser has made, which manifested as a reproducible blk-mq
> stall.
That explanation makes no s
On Wed, 27 Apr 2016 21:04:53 +0530
Hemant Kumar wrote:
>
>
> On 04/26/2016 02:34 PM, Masami Hiramatsu wrote:
> > Allo glob wildcard for reusing cached/SDT events. This also
> > automatically find the target binaries, e.g.
> >
> ># perf probe -a %sdt_libc:\*
> >
> > This example adds probes
On Apr 26 Stefan Richter wrote:
> v4.6-rc solidly hangs after a short while after boot, login to X11, and
> doing nothing much remarkable on the just brought up X desktop.
>
> Hardware: x86-64, E3-1245 v3 (Haswell),
> mainboard Supermicro X10SAE,
> using integrated Intel graphi
From: "David A. Long"
Cease using the arm32 arm_check_condition() function and replace it with
a local version for use in deprecated instruction support on arm64. Also
make the function table used by this available for future use by kprobes
and/or uprobes.
This function is dervied from code writ
From: William Cohen
The trampoline code is used by kretprobes to capture a return from a probed
function. This is done by saving the registers, calling the handler, and
restoring the registers. The code then returns to the original saved caller
return address. It is necessary to do this directly
From: Sandeepa Prabhu
Add info prints in sample kprobe handlers for ARM64
Signed-off-by: Sandeepa Prabhu
---
samples/kprobes/kprobe_example.c | 8
1 file changed, 8 insertions(+)
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 727eb21..0c72b8a 1
701 - 800 of 1129 matches
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