On 08/17/16 at 07:36pm, Joe Perches wrote:
> On Thu, 2016-08-18 at 10:31 +0800, Zhou Wenjian wrote:
> > nr_cpus can help to save memory. So we should remind user of it.
>
> trivia:
> > diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
> []
> > @@ -390,9 +390,11 @@ Notes on
nr_cpus can help to save memory. So we should remind user of it.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
Acked-by: Xunlei Pang
---
Documentation/kdump/kdump.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 88
v8->v9: rearrange the patch.
it won't fix typo which original exists.
those should be fixed in other patch, which I'll post later.
v7->v8: fix "a SMP kernel" to "an SMP kernel" and replace "\" with "/"
v6->v7: fix typo
v5->v6: replace "we" with "you"
v4->v5: move change log to cover
multi-cpu support is useful to improve the performance of kdump in
some cases. So add the description of enable multi-cpu support in
dump-capture kernel.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
Acked-by: Xunlei Pang
---
Documentation/kdump/kdump.txt | 7 +++
1 file changed, 7 inse
On Thu, 2016-08-18 at 10:31 +0800, Zhou Wenjian wrote:
> nr_cpus can help to save memory. So we should remind user of it.
trivia:
> diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
[]
> @@ -390,9 +390,11 @@ Notes on loading the dump-capture kernel:
> * Boot parameter "1"
nr_cpus can help to save memory. So we should remind user of it.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
Acked-by: Xunlei Pang
---
Documentation/kdump/kdump.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/k
v7->v8: fix "a SMP kernel" to "an SMP kernel" and replace "\" with "/"
v6->v7: fix typo
v5->v6: replace "we" with "you"
v4->v5: move change log to cover letter
v3->v4: update the description of bring up SMP dump-capture kernel
v2->v3: add description of nr_cpus.
v1->v2: change nr_cpus to maxcpus
Z
multi-cpu support is useful to improve the performance of kdump in
some cases. So add the description of enable multi-cpu support in
dump-capture kernel.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
Acked-by: Xunlei Pang
---
Documentation/kdump/kdump.txt | 7 +++
1 file changed, 7 inse
On 2016/08/18 at 09:50, Zhou Wenjian wrote:
> multi-cpu support is useful to improve the performance of kdump in
> some cases. So add the description of enable multi-cpu support in
> dump-capture kernel.
>
> Signed-off-by: Zhou Wenjian
> Acked-by: Baoquan He
> ---
> Documentation/kdump/kdump.txt
v6->v7: fix typo
v5->v6: replace "we" with "you"
v4->v5: move change log to cover letter
v3->v4: update the description of bring up SMP dump-capture kernel
v2->v3: add description of nr_cpus.
v1->v2: change nr_cpus to maxcpus
Zhou Wenjian (2):
Documentation: kdump: remind user of nr_cpus
Docu
nr_cpus can help to save memory. So we should remind user of it.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
---
Documentation/kdump/kdump.txt | 2 +++-
1 file changed, 2 insertions(+)
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 88ff63d..96da2b7 100644
multi-cpu support is useful to improve the performance of kdump in
some cases. So add the description of enable multi-cpu support in
dump-capture kernel.
Signed-off-by: Zhou Wenjian
Acked-by: Baoquan He
---
Documentation/kdump/kdump.txt | 7 +++
1 file changed, 7 insertions(+)
diff --git a
Document usage of arch-specific elf sections in livepatch as well
as implementation of arch-specific code.
Signed-off-by: Jessica Yu
---
Documentation/livepatch/module-elf-format.txt | 20
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/Documentation/livepatch
Hi,
A few months ago, Chris Arges reported a bug involving alternatives/paravirt
patching that was discussed here [1] and here [2]. To briefly summarize the
bug, patch modules that contained .altinstructions or .parainstructions
sections would break because these alternative/paravirt patches would
Implement arch_klp_init_object_loaded() for x86, which applies
alternatives/paravirt patches. This fixes the order in which relocations
and alternatives/paravirt patches are applied.
Previously, if a patch module had alternatives or paravirt patches,
these were applied first by the module loader b
Introduce arch_klp_init_object_loaded() to complete any additional
arch-specific tasks during patching. Architecture code may override this
function.
Signed-off-by: Jessica Yu
---
include/linux/livepatch.h | 3 +++
kernel/livepatch/core.c | 16 +---
2 files changed, 16 insertions(
On 08/09/2016 02:34 AM, Jonathan Corbet wrote:
> No textual changes beyond formatting.
>
> Cc: Andrey Ryabinin
> Cc: Alexander Potapenko
> Cc: Dmitry Vyukov
> Signed-off-by: Jonathan Corbet
> ---
> Documentation/dev-tools/kasan.rst | 173
> ++
> Document
Update the documentation for crypto_register_algs() and
crypto_unregister_algs() to match the actual behavior.
Signed-off-by: Eric Biggers
---
Documentation/DocBook/crypto-API.tmpl | 38 ---
1 file changed, 26 insertions(+), 12 deletions(-)
diff --git a/Documenta
I came to this patch series when wanted to do two things:
- use UAC1 as virtual ALSA sound card on gadget side,
just like UAC2 is used so it's possible to do rate
resampling
- have both playback/capture support in UAC1
Since I wanted to have same behavior for both UAC1/UAC2,
obviously I've
This patch adds new function f_uac1_newapi that
uses recently created u_audio api. This makes
f_uac1_newapi implementation much simpler by
reusing existing u_audio core utilities.
This also drops previous f_uac1 approach (write
audio samples directly to existing ALSA sound
card) and moves to more
Simplify f_uac2 by removing platform driver/device
creation; use composite's usb_gadget device as
parent for sound card and for debug prints.
This removes extra layer of code without any functional
change.
Signed-off-by: Ruslan Bilovol
---
drivers/usb/gadget/function/f_uac2.c | 107 +
Abstract the peripheral side ALSA sound card code from
the f_uac2 function into a component that can be called
by various functions, so the various flavors can be split
apart and selectively reused.
Visible changes:
- add uac_params structure to pass audio paramteres for
g_audio_setup
- make
On 08/09/2016 02:34 AM, Jonathan Corbet wrote:
> Cc: Andrey Ryabinin
> Signed-off-by: Jonathan Corbet
> ---
Acked-by: Andrey Ryabinin
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On Tue, 16 Aug 2016, Chris Metcalf wrote:
> - Dropped Christoph Lameter's patch to avoid scheduling the
> clocksource watchdog on nohz cores; the recommendation is to just
> boot with tsc=reliable for NOHZ in any case, if necessary.
We also said that there should be a WARN_ON if tsc=reliable
On Wed, Aug 17, 2016 at 6:03 AM, Michal Hocko wrote:
> On Wed 17-08-16 11:31:25, Jann Horn wrote:
>> On Wed, Aug 17, 2016 at 10:22:00AM +0200, Michal Hocko wrote:
>> > On Tue 16-08-16 12:46:51, Robert Foss wrote:
>> > [...]
>> > > $ /usr/bin/time -v -p zsh -c "repeat 25 { awk '/^Rss/{rss+=\$2}
>>
On 08/16/2016 07:30 PM, Laura Abbott wrote:
> KASAN has been supported on arm64 since 39d114ddc682 ("arm64: add KASAN
> support"). Update the docs to indicate this.
>
> Signed-off-by: Laura Abbott
Acked-by: Andrey Ryabinin
> ---
> Documentation/kasan.txt | 2 +-
> 1 file changed, 1 insertio
On 2016-08-17 09:03 AM, Michal Hocko wrote:
On Wed 17-08-16 11:31:25, Jann Horn wrote:
On Wed, Aug 17, 2016 at 10:22:00AM +0200, Michal Hocko wrote:
On Tue 16-08-16 12:46:51, Robert Foss wrote:
[...]
$ /usr/bin/time -v -p zsh -c "repeat 25 { awk '/^Rss/{rss+=\$2}
/^Pss/{pss+=\$2} END {printf
On Wed, Aug 17, 2016 at 04:32:23PM +0200, Dr. Philipp Tomsich wrote:
> On 17 Aug 2016, at 16:29, Catalin Marinas wrote:
> > On Wed, Aug 17, 2016 at 02:54:59PM +0200, Dr. Philipp Tomsich wrote:
> >> On 17 Aug 2016, at 14:48, Yury Norov wrote:
> >>> On Wed, Aug 17, 2016 at 02:28:50PM +0200, Alexand
> On 17 Aug 2016, at 16:29, Catalin Marinas wrote:
>
> On Wed, Aug 17, 2016 at 02:54:59PM +0200, Dr. Philipp Tomsich wrote:
>> On 17 Aug 2016, at 14:48, Yury Norov wrote:
>>> On Wed, Aug 17, 2016 at 02:28:50PM +0200, Alexander Graf wrote:
On 17 Aug 2016, at 13:46, Yury Norov wrote:
>
On Wed, Aug 17, 2016 at 02:54:59PM +0200, Dr. Philipp Tomsich wrote:
> On 17 Aug 2016, at 14:48, Yury Norov wrote:
> > On Wed, Aug 17, 2016 at 02:28:50PM +0200, Alexander Graf wrote:
> >> On 17 Aug 2016, at 13:46, Yury Norov wrote:
> >>> This series enables aarch64 with ilp32 mode, and as support
On Aug 17 2016, Yury Norov wrote:
> diff --git a/arch/arm64/kernel/vdso/gettimeofday.S
> b/arch/arm64/kernel/vdso/gettimeofday.S
> index e00b467..143b39e 100644
> --- a/arch/arm64/kernel/vdso/gettimeofday.S
> +++ b/arch/arm64/kernel/vdso/gettimeofday.S
> @@ -25,6 +25,16 @@
> #define NSEC_PER_SE
> On 17 Aug 2016, at 14:48, Yury Norov wrote:
>
> On Wed, Aug 17, 2016 at 02:28:50PM +0200, Alexander Graf wrote:
>>
>>> On 17 Aug 2016, at 13:46, Yury Norov wrote:
>>>
>>> This series enables aarch64 with ilp32 mode, and as supporting work,
>>> introduces ARCH_32BIT_OFF_T configuration optio
On Wed 17-08-16 11:31:25, Jann Horn wrote:
> On Wed, Aug 17, 2016 at 10:22:00AM +0200, Michal Hocko wrote:
> > On Tue 16-08-16 12:46:51, Robert Foss wrote:
> > [...]
> > > $ /usr/bin/time -v -p zsh -c "repeat 25 { awk '/^Rss/{rss+=\$2}
> > > /^Pss/{pss+=\$2} END {printf \"rss:%d pss:%d\n\", rss, ps
On Wed, Aug 17, 2016 at 02:28:50PM +0200, Alexander Graf wrote:
>
> > On 17 Aug 2016, at 13:46, Yury Norov wrote:
> >
> > This series enables aarch64 with ilp32 mode, and as supporting work,
> > introduces ARCH_32BIT_OFF_T configuration option that is enabled for
> > existing 32-bit architecture
> On 17 Aug 2016, at 13:46, Yury Norov wrote:
>
> This series enables aarch64 with ilp32 mode, and as supporting work,
> introduces ARCH_32BIT_OFF_T configuration option that is enabled for
> existing 32-bit architectures but disabled for new arches (so 64-bit
> off_t is is used by new userspace
From: Andrew Pinski
This patch adds the config option for ILP32.
Signed-off-by: Andrew Pinski
Signed-off-by: Philipp Tomsich
Signed-off-by: Christoph Muellner
Signed-off-by: Yury Norov
Reviewed-by: David Daney
---
arch/arm64/Kconfig | 10 +-
1 file changed, 9 insertions(+), 1 delet
Here new aarch32 ptrace syscall handler is introsuced to avoid run-time
detection of the task type.
Signed-off-by: Yury Norov
---
arch/arm64/include/asm/unistd32.h | 2 +-
arch/arm64/kernel/ptrace.c| 91 ++-
arch/arm64/kernel/sys32.c | 1 +
i
After that, it will be possible to reuse it in ilp32.
Signed-off-by: Yury Norov
---
arch/arm64/include/asm/signal_common.h | 33
arch/arm64/kernel/signal.c | 93 +-
2 files changed, 92 insertions(+), 34 deletions(-)
create mode 100644 arc
Based on Andrew Pinski's patch-series.
Signed-off-by: Yury Norov
---
Documentation/arm64/ilp32.txt | 57 +++
1 file changed, 57 insertions(+)
create mode 100644 Documentation/arm64/ilp32.txt
diff --git a/Documentation/arm64/ilp32.txt b/Documentation/arm6
As we support more than one compat formats, it looks more reasonable
to not use fs/compat_binfmt.c. Custom binfmt_elf32.c allows to move aarch32
specific definitions there and make code more maintainable and readable.
Signed-off-by: Yury Norov
---
arch/arm64/Kconfig | 1 -
arch/ar
All new 32-bit architectures should have 64-bit off_t type, but existing
architectures has 32-bit ones.
To handle it, new config option is added to arch/Kconfig that defaults
ARCH_32BIT_OFF_T to be disabled for 64-bit and new 32-bit architectures.
All existing 32-bit architectures enable it explic
Based on patch of Andrew Pinski.
This patch introduces is_a32_compat_task and is_a32_thread so it is
easier to say this is a a32 specific thread or a generic compat thread/task.
Corresponding functions are located in to avoid mess in
headers.
Some files include both and ,
and this is wrong beca
From: Andrew Pinski
The kernel needs to be compiled as a LP64 binary for ARM64, even when
using a compiler that defaults to code-generation for the ILP32 ABI.
Consequently, we need to explicitly pass '-mabi=lp64' (supported on
gcc-4.9 and newer).
Signed-off-by: Andrew Pinski
Signed-off-by: Phil
From: Philipp Tomsich
ILP32 VDSO exports next symbols:
__kernel_rt_sigreturn;
__kernel_gettimeofday;
__kernel_clock_gettime;
__kernel_clock_getres;
What shared object to use, kernel selects depending on result of
is_ilp32_compat_task() in arch/arm64/kernel/vdso.c, so it substitutes
correct p
They may be accessed from low-level code, so isolating is a measure to
avoid circular dependencies in header files.
The exact reason for circular dependency is WARN_ON() macro added by Al
Viro in patch [edd63a27] "set_restore_sigmask() is never called without
SIGPENDING (and never should be)"
Sig
From: Andrew Pinski
Add a separate syscall-table for ILP32, which dispatches either to native
LP64 system call implementation or to compat-syscalls, as appropriate.
Signed-off-by: Andrew Pinski
Signed-off-by: Yury Norov
---
arch/arm64/include/asm/unistd.h | 6 ++-
arch/arm64/kernel/Makefile
off_t is passed in register pair just like in aarch32.
In this patch corresponding aarch32 handlers are shared to
ilp32 code.
Signed-off-by: Yury Norov
---
arch/arm64/kernel/Makefile | 1 +
arch/arm64/kernel/entry32.S| 65 --
arch/arm64/kernel/entry32_co
From: Andrew Pinski
In this patchset ILP32 ABI support is added. Additionally to AARCH32,
which is binary-compatible with ARM, ILP32 is (mostly) ABI-compatible.
>From now, AARCH32_EL0 (former COMPAT) config option means the support of
AARCH32 userspace, ARM64_ILP32 - support of ILP32 ABI (see n
This series enables aarch64 with ilp32 mode, and as supporting work,
introduces ARCH_32BIT_OFF_T configuration option that is enabled for
existing 32-bit architectures but disabled for new arches (so 64-bit
off_t is is used by new userspace).
This version is based on kernel v4.8-rc2.
It works with
Signed-off-by: Yury Norov
---
arch/arm64/include/asm/signal32.h| 3 +
arch/arm64/include/asm/signal32_common.h | 28 +++
arch/arm64/kernel/Makefile | 2 +-
arch/arm64/kernel/signal32.c | 107
arch/arm64/kernel/signal32_common.c
From: Andrew Pinski
ILP32 uses AARCH32 compat structures and syscall handlers for signals.
But ILP32 struct rt_sigframe and ucontext differs from both LP64 and
AARCH32. So some specific mechanism is needed to take care of it.
Signed-off-by: Andrew Pinski
Signed-off-by: Yury Norov
---
arch/ar
ILP32 tasks are needed to be distinguished from lp64 and aarch32.
This patch adds helper functions is_ilp32_compat_{task,thread} and
thread flag TIF_32BIT_AARCH64 to address it. This is a preparation
for following patches in ilp32 patchset.
For consistency, SET_PERSONALITY is changed here accordin
binfmt_ilp32.c is needed to handle ILP32 binaries
Signed-off-by: Yury Norov
---
arch/arm64/include/asm/elf.h | 6 +++
arch/arm64/kernel/Makefile | 1 +
arch/arm64/kernel/binfmt_ilp32.c | 96
3 files changed, 103 insertions(+)
create mode 1006
From: Andrew Pinski
Define __BITS_PER_LONG depending on the ABI used (i.e. check whether
__ILP32__ or __LP64__ is defined). This is necessary for glibc to
determine the appropriate type definitions for the system call interface.
Signed-off-by: Andrew Pinski
Signed-off-by: Philipp Tomsich
Sign
On Wed, Aug 17, 2016 at 7:44 AM, Markus Heiser
wrote:
- Along those lines, is parse-header the right name for this thing?
"Parsing" isn't necessarily the goal of somebody who uses this directive,
right? They want to extract documentation information. Can we come up
with a bet
From: Srividya Desireddy
Date: Wed, 17 Aug 2016 14:34:41 +0530
Subject: [PATCH 4/4] zswap: Update document with sharing of duplicate pages
feature
Updated zswap document with details on the sharing of duplicate swap pages
feature. The usage of zswap.same_page_sharing module parameter is
explaine
On Wed, Aug 17, 2016 at 10:22:00AM +0200, Michal Hocko wrote:
> On Tue 16-08-16 12:46:51, Robert Foss wrote:
> [...]
> > $ /usr/bin/time -v -p zsh -c "repeat 25 { awk '/^Rss/{rss+=\$2}
> > /^Pss/{pss+=\$2} END {printf \"rss:%d pss:%d\n\", rss, pss}\'
> > /proc/5025/smaps }"
> > [...]
> > Comman
On Tue 16-08-16 12:46:51, Robert Foss wrote:
[...]
> $ /usr/bin/time -v -p zsh -c "repeat 25 { awk '/^Rss/{rss+=\$2}
> /^Pss/{pss+=\$2} END {printf \"rss:%d pss:%d\n\", rss, pss}\'
> /proc/5025/smaps }"
> [...]
> Command being timed: "zsh -c repeat 25 { awk '/^Rss/{rss+=$2}
> /^Pss/{pss+=$2}
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