On Mon, Mar 15, 2021 at 11:14 PM Peter Zijlstra wrote:
>
> On Mon, Mar 15, 2021 at 07:23:29PM +0100, Sedat Dilek wrote:
>
> > You mean something like that ^^?
> >
> > - Sedat -
> >
> > [1]
> > https://git.zx2c4.com/laptop-kernel/commit/?id=116badbe0a18bc36ba90acb8b80cff41f9ab0686
>
> *shudder*,
Hi,
On Sat, Mar 13, 2021 at 04:11:19PM +, Jonathan Cameron wrote:
> On Fri, 12 Mar 2021 11:55:15 +0100
> Oleksij Rempel wrote:
>
> > Basically the TI TSC2046 touchscreen controller is 8 channel ADC optimized
> > for
> > the touchscreen use case. By implementing it as IIO ADC device, we can
> -Original Message-
> From: Pratyush Yadav
> Sent: Tuesday, March 16, 2021 12:01 AM
> To: Kuldeep Singh
> Cc: linux-...@vger.kernel.org; devicet...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Mark Brown ; Rob Herring
> ; Vladimir Oltean ; linux-
> m...@lists.infradead.org
>
On Mon, Mar 08, 2021 at 07:18:31PM +0200, Cristian Ciocaltea wrote:
> Add support for the missing NIC and ETHERNET clocks in the Actions Semi
> Owl S500 SoC clock driver.
>
> Additionally, change APB clock parent from AHB to the newly added NIC.
>
> Signed-off-by: Cristian Ciocaltea
> ---
>
On Mon, Mar 15, 2021 at 05:06:16PM -0400, Sasha Levin wrote:
> On Mon, Mar 15, 2021 at 07:56:02PM +, Vladimir Oltean wrote:
> > > Signed-off-by: Vladimir Oltean
> > > Tested-by: Christian Eggers # For tail taggers only
> > > Tested-by: Kurt Kanzenbach
> > > Reviewed-by: Florian Fainelli
>
On 3/15/21 10:42 PM, Bhaskar Chowdhury wrote:
>
> s/kernal/kernel/
>
> A punctuation added too.
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> Changes from V1:
> Punctuation missed, added as per Randy's finding
>
> arch/x86/events/intel/bts.c | 2 +-
> 1 file
Hoi Hans,
on a slighly different but also related topic. Did you ever come across
SMSC SCH5347? Seems to be pretty similar to 56xx, only with spec non
public ... and probably less often in use
Maybe you happen to have code, or know the differences. We already have
it working with a modified copy
instead of lookup_real()/vfs_create(), i_op->lookup() and
i_op->create() will be called directly.
update vfs_open() logic
should_follow_link is merged into lookup_last() or open_last_lookup()
which returns symlink name instead of an integer.
Signed-off-by: Fox Chen
---
WALK_GET is changed to WALK_TRAILING with a different meaning.
Here it should be WALK_NOFOLLOW. WALK_PUT dosn't exist, we have
WALK_MORE.
WALK_PUT == !WALK_MORE
And there is not should_follow_link().
Related commits:
commit 8c4efe22e7c4 ("namei: invert the meaning of WALK_FOLLOW")
commit
no get_link() anymore. we have step_into() and pick_link().
walk_component() will call step_into(), in turn call pick_link,
and return symlink name.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff
get_link() is merged into pick_link(). i_op->follow_link is
replaced with i_op->get_link(). get_link() can return ERR_PTR(0)
which equals NULL.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 13 ++---
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git
Add macro name MAXSYMLINKS to the symlink limit description, so
that it is consistent with path name length description above.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
follow_link has been replaced by get_link() which can be
called in RCU mode.
see commit: commit 6b2553918d8b ("replace ->follow_link() with
new method that could stay in RCU mode")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 12 +---
1 file changed, 5
No inode->put_link operation anymore. We use delayed_call to
deal with link destruction. Cookie has been replaced with
struct delayed_call.
Related commit: commit fceef393a538 ("switch ->get_link() to
delayed_call, kill ->put_link()")
Signed-off-by: Fox Chen
---
No filename_mountpoint any more
see commit: commit 161aff1d93ab ("LOOKUP_MOUNTPOINT:
fold path_mountpointat() into path_lookupat()")
Without filename_mountpoint and path_mountpoint(), the
numbers should be four & three:
"These four correspond roughly to the three path_*() functions"
traling_symlink() was merged into lookup_last, do_last().
do_last() has later been split into open_last_lookups()
and do_open().
see related commit: commit c5971b8c6354 ("take post-lookup
part of do_last() out of loop")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst |
No path_to_namei() anymore, step_into() will be called.
Related commit: commit c99687a03a78 ("fold path_to_nameidata()
into its only remaining caller")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git
No follow_managed() anymore, handle_mounts(),
traverse_mounts(), will do the job.
see commit 9deed3ebca24 ("new helper: traverse_mounts()")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
path_mountpoint() doesn't exist anymore. Have been folded
into path_lookup_at when flag is set with LOOKUP_MOUNTPOINT.
Check commit: commit 161aff1d93abf0e ("LOOKUP_MOUNTPOINT: fold
path_mountpointat() into path_lookupat()")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst
The Path lookup is a very complex subject in VFS. The path-lookup
document provides a very detailed guidance to help people understand
how path lookup works in the kernel. This document was originally
written based on three lwn articles five years ago. As times goes by,
some of the content is
On Mon, Mar 15, 2021 at 07:56:02PM +, Vladimir Oltean wrote:
> +Andrew, Vivien,
>
> On Mon, Mar 15, 2021 at 02:53:26PM +0100, gre...@linuxfoundation.org wrote:
> > From: Greg Kroah-Hartman
> >
> > From: Vladimir Oltean
> >
> > [ Upstream commit a3b0b6479700a5b0af2c631cb2ec0fb7a0d978f2 ]
> >
On Mon, Mar 08, 2021 at 07:18:29PM +0200, Cristian Ciocaltea wrote:
> There are a few issues with the setup of the Actions Semi Owl S500 SoC's
> clock chain involving AHPPREDIV, H and AHB clocks:
>
> * AHBPREDIV clock is defined as a muxer only, although it also acts as
> a divider.
> * H clock
s/kernal/kernel/
A punctuation added too.
Signed-off-by: Bhaskar Chowdhury
---
Changes from V1:
Punctuation missed, added as per Randy's finding
arch/x86/events/intel/bts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/bts.c
On 16-03-21, 00:36, Frank Rowand wrote:
> I should have looked at patch 3/5 more carefully instead of counting on
> Masahiro to check it out and simply build testing.
>
> Patch 3/5 does not seem correct. I'll look over all the makefile related
> changes that have been accepted (if any) and patch
On 3/15/21 5:12 PM, Laurent Pinchart wrote:
> Hi Yamada-san,
>
> On Tue, Mar 16, 2021 at 02:43:45AM +0900, Masahiro Yamada wrote:
>> On Mon, Mar 15, 2021 at 3:40 PM Viresh Kumar wrote:
>>> On 14-03-21, 20:16, Frank Rowand wrote:
On 3/12/21 11:11 PM, Frank Rowand wrote:
> On 3/12/21 1:13
+Lorenzo
Hi Sowjanya,
Sorry for the delayed response. I am still in vacation
On Thu, Mar 11, 2021 at 01:11:37PM -0800, Sowjanya Komatineni wrote:
>
> On 3/10/21 6:52 PM, Sudeep Holla wrote:
> > On Mon, Mar 08, 2021 at 10:32:17AM -0800, Sowjanya Komatineni wrote:
> > > On 3/7/21 8:37 PM,
On 3/15/21 1:40 AM, Viresh Kumar wrote:
> On 14-03-21, 20:16, Frank Rowand wrote:
>> On 3/12/21 11:11 PM, Frank Rowand wrote:
>>> On 3/12/21 1:13 AM, Viresh Kumar wrote:
On 12-03-21, 01:09, Frank Rowand wrote:
> I suggested having the .dtso files include the .dts file because that is
On 3/15/21 10:27 PM, Bhaskar Chowdhury wrote:
>
> Trivial typo fixes throughout the file.
>
> cc: triv...@vger.kernel.org
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> fs/dlm/lock.c | 8
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git
On 22:19 Mon 15 Mar 2021, Randy Dunlap wrote:
On 3/15/21 9:19 PM, Bhaskar Chowdhury wrote:
s/kernal/kernel/
Signed-off-by: Bhaskar Chowdhury
---
arch/x86/events/intel/bts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/bts.c
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Mon, 15 Mar 2021 14:29:51 +0100 you wrote:
> This seems to be a reminiscent from the hashmap tests.
>
> Signed-off-by: Pedro Tammela
> ---
> tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c | 5 -
> 1
On Mon, 15 Mar 2021 at 19:35, wrote:
>
> From: Greg Kroah-Hartman
>
> This is the start of the stable review cycle for the 5.4.106 release.
> There are 168 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me
Trivial typo fixes throughout the file.
cc: triv...@vger.kernel.org
Signed-off-by: Bhaskar Chowdhury
---
fs/dlm/lock.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 002123efc6b0..caadc426c8b4 100644
--- a/fs/dlm/lock.c
+++
On 16-03-21, 02:43, Masahiro Yamada wrote:
> On Mon, Mar 15, 2021 at 3:40 PM Viresh Kumar wrote:
> > On 14-03-21, 20:16, Frank Rowand wrote:
> > What about doing this then in unittest's Makefile instead (which I
> > already suggested earlier), that will make everything work just fine
> > without
Hi Jiri,
On 3/16/2021 7:03 AM, Jiri Olsa wrote:
On Thu, Mar 11, 2021 at 03:07:31PM +0800, Jin Yao wrote:
SNIP
goto try_again;
}
+
+ if (errno == EINVAL && perf_pmu__hybrid_exist())
+
On (21/02/08 14:17), Sergey Senozhatsky wrote:
> Hello,
>
> RFC
Hi Laurent,
Gentle ping.
-ss
On 3/15/21 10:03 PM, Bhaskar Chowdhury wrote:
>
> s/postion/position/
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> Al, I hope this time I read the comments well enough,if still
> I am at fault , curse me!
>
> fs/coredump.c | 2 +-
> 1 file changed, 1 insertion(+),
From: Aubrey Li
Add idle cpumask to track idle cpus in sched domain. Every time
a CPU enters idle, the CPU is set in idle cpumask to be a wakeup
target. And if the CPU is not in idle, the CPU is cleared in idle
cpumask during scheduler tick to ratelimit idle cpumask update.
When a task wakes up
On 3/15/21 9:52 PM, Bhaskar Chowdhury wrote:
>
> s/seting/setting/
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> drivers/usb/host/sl811_cs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/sl811_cs.c
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Mon, 15 Mar 2021 21:44:54 +0900 you wrote:
> This patch fixes a spelling typo in do_hbm_test.sh
>
> Signed-off-by: Masanari Iida
> ---
> samples/bpf/do_hbm_test.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
On Mon, 15 Mar 2021 at 19:27, wrote:
>
> From: Greg Kroah-Hartman
>
> This is the start of the stable review cycle for the 5.10.24 release.
> There are 290 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me
On 3/15/21 9:19 PM, Bhaskar Chowdhury wrote:
>
> s/kernal/kernel/
>
> Signed-off-by: Bhaskar Chowdhury
> ---
> arch/x86/events/intel/bts.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
> index
On Mon, Mar 15, 2021 at 5:45 AM Masanari Iida wrote:
>
> This patch fixes a spelling typo in do_hbm_test.sh
>
> Signed-off-by: Masanari Iida
> ---
Thanks, applied to bpf-next. For the future patches, please use [PATCH
bpf-next] subject prefix if you are sending patches against bpf-next
tree (of
On 3/15/21 9:33 PM, Bhaskar Chowdhury wrote:
>
> s/techically/technically/
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> Changes from V1:
> Meh, missed the changelog text, so added :)
>
> arch/mips/include/asm/octeon/cvmx-address.h | 2 +-
> 1 file changed, 1
On Mon, 15 Mar 2021 at 19:27, wrote:
>
> From: Greg Kroah-Hartman
>
> This is the start of the stable review cycle for the 5.11.7 release.
> There are 306 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me
On 3/15/21 9:08 PM, He Ying wrote:
> We found these warnings in kernel/panic.c by using sparse tool:
> warning: symbol 'panic_smp_self_stop' was not declared.
> warning: symbol 'nmi_panic_self_stop' was not declared.
> warning: symbol 'crash_smp_send_stop' was not declared.
>
> To avoid them, add
Hi Greg:
I listed below some answers from Moritz and Yilun from previous mails for
your question.
Do you have more comments?
Thanks in advance,
Yilun
On Mon, Mar 08, 2021 at 09:59:34AM +0800, Xu Yilun wrote:
> This patchset supports some dfl device drivers written in userspace.
>
> There are
In preparation to unionize structs _ddebug & ddebug_table, shuffle
fields in latter so they match the layout of the former. This MAY
simplify initialization of the header field, in particular by
preserving *sites.
It also sets up a later conversion to a flex-array ddebugs[].
This step is mostly
V4-proto - now currently diet-3i
Simplify:
.gnu.linkonce._mod_.dyndbg -> .gnu.linkonce.dyndbg
ie drop _mod_
This puts a single header record at front of the vectors, solving 2
problems (discussed below) simultaneously:
- header in front, allowing flex-array rep of layout.
- single header, not
The next patch adds DEFINE_DYNAMIC_DEBUG_TABLE(), which breaks some
subtrees with special compile constraints (efi etc).
Avoid this by adding a define to suppress the *remote declaration*
done by DEFINE_DYNAMIC_DEBUG_TABLE(), automatically, on behalf of all
possible users of pr_debug.
In order to drop the pointer connecting _ddebug's to _ddebug_sites,
we need to elevate the latter; we need to track it in (internal)
ddebug_tables, and set it in ddebug_add_module. That last part
exposes it by interface to module.c, so we add a field to load_info,
and adjust load_module to
Add early return if no callsite info is specified in site-flags.
This avoids fetching site info that isn't going to be printed.
Signed-off-by: Jim Cromie
---
include/linux/dynamic_debug.h | 9 +
lib/dynamic_debug.c | 3 +++
2 files changed, 12 insertions(+)
diff --git
Replace direct ->site refs with _get(),_put() internal API. Right
now, _get() just returns ->site and _put() does nothing. Later we can
replace that implementation with one using ->module_index to fetch
then forget site data dynamically.
Several approaches are possible:
A: !site -> fill from
We currently use dp->site to map: &__dyndbg[N] -> &__dyndbg_sites[N].
We want to drop site, new _ddebug._index provides the N.
The mapping is done in ddebug_site_get():
For builtin modules, a _ddebug *ptr is between __start___dyndbg and
__stop___dyndbg, and we can use &__start___dyndbg_sites[N]
Accept a ddebug record with a null site pointer, and write abbreviated
output for that record that doesn't include site info (but does
include line-number, since that can be used in >control queries).
Also add a 2nd header line with a template for the new output.
Signed-off-by: Jim Cromie
---
Allow users & subsystems to selectively delete callsite info for
pr-debug callsites. Hopefully, this can lead to actual recovery of
memory.
DRM is a potential user which would drop the sites:
- has distinct categories for logging, and can map them over to a
format prefix, like: "drm:core:",
Move the JUMP_LABEL/static-key code to a separate function.
no functional changes.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 22 +++---
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index
Wrap function in a static-inline one, which checks flags to avoid
calling the function unnecessarily.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index
Move all the site-match logic into a separate function, reindent the
code, and replace the continues with return falses.
No functional changes.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 75 ++---
1 file changed, 43 insertions(+), 32
2 prints use site->member, protect them with if site.
no functional changes.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 16 ++--
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 151e55ab6bb5..0c535f3c2ba9 100644
A coming change adds _get/_put abstraction on the site pointer, to
allow managing site info more flexibly. The get/put pattern is best
done at a single lexical scope, where its more obviously correct, so
hoist the ->site ref out of ddebug_match_site, and pass it in instead.
no functional changes
basically, reorder the elements to minimize data fetches.
1- move format and line-number check code to the top of the function,
since they don't use/check site info.
2- test site pointer:
If its null, we return early, skipping 3:
If the query tests against missing site info, fail the
fix a debug-print that includes site info, by adding an alternate
debug message that does not.
no functional changes.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 15 +++
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
In dynamic_debug_init(), rework for-loop; add 2nd 'site' var, and
iterate over both __dyndbg* sections in parallel. Replace uses of
iter->site with the new 'site' iter, add a BUG_ON to enforce the
invariant given by HEAD~1's DECLARE_DYNAMIC_DEBUG_METADATA base->site
initialization.
0- declare
struct _ddebug has 2 flavors of fields: essential and optional. Split
the 3 optional fields: module, function, file into a new struct
_ddebug_site, and add pointer to it from _ddebug.
These fields are optional in that they are primarily used to generate
the optional "module:func:line" log
CONFIG_DYNAMIC_DEBUG creates a struct _ddebug (56 bytes) for each
callsite, which includes 3 pointers to: module, filename, function.
These are repetetive, and compressible, this patch series goes about
doing that, it:
- splits struct _ddebug and __dyndbg[] section/array into 2
creating struct
Hi Zhiyong,
On Fri, Mar 12, 2021 at 2:35 PM Zhiyong Tao wrote:
>
> When multiple threads operate on the same register resource
> which include multiple pin, It will make the register resource
> wrong to control. So we add lock to avoid the case.
>
> Signed-off-by: Zhiyong Tao
> ---
>
+Alex
On Tue, Mar 16, 2021 at 9:20 AM Jiuyang Liu wrote:
>
> This patch inserts SFENCE.VMA after modifying PTE based on RISC-V
> specification.
>
> arch/riscv/include/asm/pgtable.h:
> 1. implement pte_user, pte_global and pte_leaf to check correspond
> attribute of a pte_t.
Adding pte_user(),
add compatible entry "nxp,imx8mp-fspi" in NXP FlexSPI controller
Signed-off-by: Heiko Schocher
---
Changes in v3:
- no changes, rebased against
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
144c79ef33536 Merge tag 'perf-tools-fixes-for-v5.12-2020-03-07' of
add compatible entry in nxp_fspi driver for imx8mp.
Signed-off-by: Heiko Schocher
into own series as Kuldeep suggested and rebased against
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
144c79ef33536 ("Merge tag 'perf-tools-fixes-for-v5.12-2020-03-07' of
add compatible entry in nxp_fspi driver for imx8mp
new in v3:
seperate spi changes from series:
http://lists.infradead.org/pipermail/linux-arm-kernel/2021-March/643289.html
into own series as Kuldeep suggested and rebased against
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
s/postion/position/
Signed-off-by: Bhaskar Chowdhury
---
Al, I hope this time I read the comments well enough,if still
I am at fault , curse me!
fs/coredump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/coredump.c b/fs/coredump.c
index 1c0fdc1aa70b..3ecae122ffd9
Excerpts from Davidlohr Bueso's message of March 9, 2021 11:59 am:
> 49a7d46a06c3 (powerpc: Implement smp_cond_load_relaxed()) added
> busy-waiting pausing with a preferred SMT priority pattern, lowering
> the priority (reducing decode cycles) during the whole loop slowpath.
>
> However, data
Hello Steen,
On 15-03-21, 16:04, Steen Hegelund wrote:
> Hi Kishon, Vinod, Andrew, Jacub, and David,
>
> I just wanted to know if you think that the Generic PHY subsystem might
> not be the right place for this Ethernet SerDes PHY driver after all.
>
> Originally I chose this subsystem for
s/seting/setting/
Signed-off-by: Bhaskar Chowdhury
---
drivers/usb/host/sl811_cs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 72136373ffab..16d157013018 100644
--- a/drivers/usb/host/sl811_cs.c
+++
On 3/15/21 9:21 PM, Chris Packham wrote:
>
> On 16/03/21 4:43 pm, Guenter Roeck wrote:
>> On 3/15/21 7:35 PM, Chris Packham wrote:
>>> The BPA-RS600 is a compact 600W AC to DC removable power supply module.
>>>
>>> Signed-off-by: Chris Packham
>>> ---
>
>>> +
>>> +static int
Accumulate unused quota from previous periods, thus accumulated
bandwidth runtime can be used in the following periods. During
accumulation, take care of runtime overflow. Previous non-burstable
CFS bandwidth controller only assign quota to runtime, that saves a lot.
A sysctl parameter
When using cfs_b and meeting with some throttled periods, users shall
use burst buffer to allow bursty workloads. Apart from configuring some
burst buffer and watch whether throttled periods disappears, some
statistics on burst buffer using are also helpful. Thus expose the
following statistics
Basic description of usage and effect for CFS Bandwidth Control Burst.
Co-developed-by: Shanpei Chen
Signed-off-by: Shanpei Chen
Signed-off-by: Huaixin Chang
---
Documentation/admin-guide/cgroup-v2.rst | 16 +
Documentation/scheduler/sched-bwc.rst | 64
In this patch, we introduce the notion of CFS bandwidth burst. Unused
"quota" from pervious "periods" might be accumulated and used in the
following "periods". The maximum amount of accumulated bandwidth is
bounded by "burst". And the maximun amount of CPU a group can consume in
a given period is
Changelog:
v4:
- Adjust assignments in tg_set_cfs_bandwidth(), saving unnecessary
assignemnts when quota == RUNTIME_INF.
- Getting rid of sysctl_sched_cfs_bw_burst_onset_percent, as there seems
no justification for both controlling start bandwidth and a percent
way.
- Comment improvement in
} (or somewhere between v5.11 and that tag), please
consider rebasing it onto v5.12-rc2. Also, please check any branches
merged into your branch.
Changes since 20210315:
New tree: rust
Non-merge commits (relative to Linus' tree): 3766
3532 files changed, 245539 insertions(+), 64760 deletions
On Wed, Mar 10, 2021 at 2:02 PM Florent Revest wrote:
>
> This exercices most of the format specifiers when things go well.
typo: exercises
>
> Signed-off-by: Florent Revest
> ---
> .../selftests/bpf/prog_tests/snprintf.c | 71 +++
>
On 16-03-21, 11:15, Stephen Rothwell wrote:
> Hi all,
>
> After merging the opp tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
>
> In file included from include/linux/devfreq.h:15,
> from drivers/base/power/main.c:36:
>
On Tue, Mar 16, 2021 at 10:08:51AM +0800, Huang, Ying wrote:
> Yu Zhao writes:
> [snip]
>
> > +/* Main function used by foreground, background and user-triggered aging.
> > */
> > +static bool walk_mm_list(struct lruvec *lruvec, unsigned long next_seq,
> > +struct
s/extremal/external/
Signed-off-by: Bhaskar Chowdhury
---
But...Paolo,is it also "extreme"? I am in a catch-22?
Documentation/virt/kvm/timekeeping.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/virt/kvm/timekeeping.rst
>> +if (queue < tx_cnt) {
>> +ec->tx_coalesce_usecs = priv->tx_coal_timer[queue];
>> +ec->tx_max_coalesced_frames = priv->tx_coal_frames[queue];
>> +} else {
>> +ec->tx_coalesce_usecs = -1;
>> +ec->tx_max_coalesced_frames = -1;
>> +}
>> +
On Mon, Mar 15, 2021 at 9:36 PM Andrii Nakryiko
wrote:
>
> On Wed, Mar 10, 2021 at 2:02 PM Florent Revest wrote:
> >
> > When initializing the __param array with a one liner, if all args are
> > const, the initial array value will be placed in the rodata section but
> > because libbpf does not
On Wed, Mar 10, 2021 at 2:02 PM Florent Revest wrote:
>
> Similarly to BPF_SEQ_PRINTF, this macro turns variadic arguments into an
> array of u64, making it more natural to call the bpf_snprintf helper.
>
> Signed-off-by: Florent Revest
> ---
> tools/lib/bpf/bpf_tracing.h | 15 +++
>
Hi Jiri,
On 3/16/2021 7:04 AM, Jiri Olsa wrote:
On Thu, Mar 11, 2021 at 03:07:32PM +0800, Jin Yao wrote:
A group mixed with hybrid event and global event is allowed. For example,
group leader is 'cpu-clock' and the group member is 'cpu_atom/cycles/'.
e.g.
perf stat -e
On Wed, Mar 10, 2021 at 2:02 PM Florent Revest wrote:
>
> When initializing the __param array with a one liner, if all args are
> const, the initial array value will be placed in the rodata section but
> because libbpf does not support relocation in the rodata section, any
> pointer in this array
On Tue, Mar 16, 2021 at 5:15 AM Vladimir Oltean wrote:
>
> Actually this is just how Qingfang explained it:
> https://patchwork.kernel.org/project/netdevbpf/patch/20210224081018.24719-1-dqf...@gmail.com/
>
> I just assume that MT7530/7531 switches don't need to enable flooding on
> user ports
On 3/15/21 1:32 PM, Jernej Škrabec wrote:
> Hi!
>
> Dne ponedeljek, 15. marec 2021 ob 05:32:49 CET je Samuel Holland napisal(a):
>> For a CPU to enter an idle state, there must be some timer which can
>> trigger an IRQ to wake it back up. The local ARM architectural timer is
>> not sufficient,
s/techically/technically/
Signed-off-by: Bhaskar Chowdhury
---
Changes from V1:
Meh, missed the changelog text, so added :)
arch/mips/include/asm/octeon/cvmx-address.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/octeon/cvmx-address.h
On 3/14/21 4:30 AM, Wilken Gottwalt wrote:
> Wilken Gottwalt (2):
> dt-bindings: hwlock: add sun6i_hwspinlock
> hwspinlock: add sun6i hardware spinlock support
>
> .../allwinner,sun6i-a31-hwspinlock.yaml | 45
> MAINTAINERS | 6 +
>
On Mon, Mar 15, 2021 at 9:20 PM Arjun Roy wrote:
>
[...]
> >
>
> Apologies for the spam - looks like I forgot to rebase the first time
> I sent this out.
>
> Actually, on a related note, it's not 100% clear to me whether this
> patch (which in its current form, applies to net-next) should instead
Signed-off-by: Bhaskar Chowdhury
---
arch/mips/include/asm/octeon/cvmx-address.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/octeon/cvmx-address.h
b/arch/mips/include/asm/octeon/cvmx-address.h
index ef8c4a61..5df5c90f6a5d 100644
---
On 2021/2/24 16:15, Aubrey Li wrote:
> A long-tail load balance cost is observed on the newly idle path,
> this is caused by a race window between the first nr_running check
> of the busiest runqueue and its nr_running recheck in detach_tasks.
>
> Before the busiest runqueue is locked, the tasks
On 16/03/21 4:43 pm, Guenter Roeck wrote:
> On 3/15/21 7:35 PM, Chris Packham wrote:
>> The BPA-RS600 is a compact 600W AC to DC removable power supply module.
>>
>> Signed-off-by: Chris Packham
>> ---
>> +
>> +static int bpa_rs600_read_word_data(struct i2c_client *client, int page,
>> +
Hi Gavin,
On 2021/3/16 11:52, Gavin Shan wrote:
> Hi Keqian,
>
> On 3/15/21 8:42 PM, Gavin Shan wrote:
>> On 3/15/21 7:04 PM, Keqian Zhu wrote:
>>> On 2021/3/15 12:18, Gavin Shan wrote:
find_vma_intersection() has been existing to search the intersected
vma. This uses the function
On Mon, Mar 15, 2021 at 9:16 PM Arjun Roy wrote:
>
> From: Arjun Roy
>
> TCP zerocopy receive is used by high performance network applications
> to further scale. For RX zerocopy, the memory containing the network
> data filled by the network driver is directly mapped into the address
> space of
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