On 18/04/18 11:08, Alastair D'Silva wrote:
From: Alastair D'Silva
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva
Per my previous email:
Reviewed-by: Andrew Donnellan
--
Andr
On 18/04/18 11:08, Alastair D'Silva wrote:
From: Alastair D'Silva
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva
Reviewed-by: Andrew Donnellan
--
Andrew Donnellan OzLabs, ADL Canberra
and
On 18/04/18 11:08, Alastair D'Silva wrote:
From: Alastair D'Silva
Signed-off-by: Alastair D'Silva
This looks better.
Acked-by: Andrew Donnellan
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
Hi,
These pacthes begin categorizing memory management documentation. The
documents that describe userspace APIs and do not overload the reader with
implementation details can be moved to Documentation/admin-guide, so let's
do it :)
Mike Rapoport (7):
docs/vm: hugetlbpage: minor improvements
* fixed mistypes
* added internal cross-references for sections
Signed-off-by: Mike Rapoport
---
Documentation/vm/hugetlbpage.rst | 17 ++---
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/Documentation/vm/hugetlbpage.rst b/Documentation/vm/hugetlbpage.rst
index a5da1
"pagemap from the Userspace Perspective" is not very descriptive for
unaware readers. Since the document describes how to examine a process page
tables, let's title it "Examining Process Page Tables"
Signed-off-by: Mike Rapoport
---
Documentation/vm/pagemap.rst | 6 +++---
1 file changed, 3 inse
On Fri, Apr 13, 2018 at 10:42:55AM -0700, Sam Hansen wrote:
> This strips trailing whitespace in Documentation/i2c/dev-interface.
>
> Signed-off-by: Sam Hansen
Applied to for-current, thanks!
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On Fri, Apr 13, 2018 at 10:42:56AM -0700, Sam Hansen wrote:
> Currently, Documentation/i2c/dev-interface describes the use of
> i2c_smbus_* helper routines as static inlined functions provided by
> linux/i2c-dev.h. Work has been done to refactor the linux/i2c-dev.h file
> in the i2c-tools project
Signed-off-by: Mike Rapoport
---
Documentation/admin-guide/index.rst| 1 +
Documentation/admin-guide/mm/index.rst | 19 +++
2 files changed, 20 insertions(+)
create mode 100644 Documentation/admin-guide/mm/index.rst
diff --git a/Documentation/admin-guide/index.rst
b/Docume
Signed-off-by: Mike Rapoport
---
Documentation/admin-guide/mm/hugetlbpage.rst| 3 ++-
Documentation/admin-guide/mm/idle_page_tracking.rst | 5 +++--
Documentation/admin-guide/mm/pagemap.rst| 18 +++---
3 files changed, 16 insertions(+), 10 deletions(-)
diff --gi
On Fri, Apr 13, 2018 at 10:42:57AM -0700, Sam Hansen wrote:
> The example I2C code is rewritten to adopt the preferred kernel block
> commenting style.
>
> Signed-off-by: Sam Hansen
Applied to for-current, thanks!
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Several documents in Documentation/vm fit quite well into the "admin/user
guide" category. The documents that don't overload the reader with lots of
implementation details and provide coherent description of certain feature
can be moved to Documentation/admin-guide/mm.
Signed-off-by: Mike Rapoport
The hugetlbpage describes hugetlbfs from the user perspective and newer
hugetlbfs_reserv document targets kernel developers. Hence the section
about hugetlbfs kernel development naturally belongs there.
Signed-off-by: Mike Rapoport
---
Documentation/vm/hugetlbfs_reserv.rst | 8
Document
Signed-off-by: Mike Rapoport
---
Documentation/vm/pagemap.rst | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/Documentation/vm/pagemap.rst b/Documentation/vm/pagemap.rst
index d54b4bf..9644bc0 100644
--- a/Documentation/vm/pagemap.rst
+++ b/Documentation/vm/pa
> +The above functions are made available by linking against the libi2c library,
> +which is provided by the i2c-tools project. See:
> +https://git.kernel.org/pub/scm/utils/i2c-tools/i2c-tools.git/.
In the beginning, we say that '#include ' is needed.
Shouldn't we mention i2c-tools there already
The name of the following proc/sysctl entries were incorrectly
documented:
/proc/sys/net/ipv6/conf//max_dst_opts_number
/proc/sys/net/ipv6/conf//max_hbt_opts_number
/proc/sys/net/ipv6/conf//max_dst_opts_length
/proc/sys/net/ipv6/conf//max_hbt_length
Their name was set to the name
On Tue, 17 Apr 2018 15:34:38 +0100
Quentin Monnet wrote:
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index 350459c583de..3d329538498f 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -1276,6 +1276,50 @@ union bpf_attr {
> * Return
> *
On Wed, 18 Apr 2018 12:31:34 +0200
Olivier Gayot wrote:
> The name of the following proc/sysctl entries were incorrectly
> documented:
>
> /proc/sys/net/ipv6/conf//max_dst_opts_number
> /proc/sys/net/ipv6/conf//max_hbt_opts_number
> /proc/sys/net/ipv6/conf//max_dst_opts_length
>
On Tue, Apr 17, 2018 at 5:06 PM, Jae Hyun Yoo
wrote:
> On 4/17/2018 11:16 AM, Jae Hyun Yoo wrote:
>>
>> On 4/17/2018 6:16 AM, Rob Herring wrote:
>>>
>>> On Mon, Apr 16, 2018 at 6:12 PM, Jae Hyun Yoo
>>> wrote:
On 4/16/2018 11:10 AM, Rob Herring wrote:
>
>
> On Tue, Apr 10, 2
2018-04-18 15:34 UTC+0200 ~ Jesper Dangaard Brouer
> On Tue, 17 Apr 2018 15:34:38 +0100
> Quentin Monnet wrote:
>
>> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
>> index 350459c583de..3d329538498f 100644
>> --- a/include/uapi/linux/bpf.h
>> +++ b/include/uapi/linux/bpf.h
>>
On Tue, Apr 17, 2018 at 3:40 PM, Jae Hyun Yoo
wrote:
> On 4/16/2018 4:51 PM, Jae Hyun Yoo wrote:
>>
>> On 4/16/2018 4:22 PM, Jae Hyun Yoo wrote:
>>>
>>> On 4/16/2018 11:14 AM, Rob Herring wrote:
On Tue, Apr 10, 2018 at 11:32:09AM -0700, Jae Hyun Yoo wrote:
>
> This commit adds dt
On 04/17/2018 02:46 AM, Anders Roxell wrote:
> Add a description that the kernel headers should be used as far as it is
> possible and then the system headers.
>
> Signed-off-by: Anders Roxell
> ---
> Documentation/dev-tools/kselftest.rst | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --gi
On Wed, 18 Apr 2018 15:09:41 +0100
Quentin Monnet wrote:
> 2018-04-18 15:34 UTC+0200 ~ Jesper Dangaard Brouer
> > On Tue, 17 Apr 2018 15:34:38 +0100
> > Quentin Monnet wrote:
> >
> >> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> >> index 350459c583de..3d329538498f 10064
Hi Jonathan,
On Wed, Apr 18, 2018 at 07:43:56AM -0600, Jonathan Corbet wrote:
> The patch seems good, but can I suggest resending it to netdev? Davem
> likes to handle networking docs patches himself.
>
> Thanks,
>
> jon
Sure. Thanks for the feedback. I'll resend to netdev.
Olivier
--
To unsu
On 4/18/2018 6:59 AM, Rob Herring wrote:
On Tue, Apr 17, 2018 at 5:06 PM, Jae Hyun Yoo
wrote:
On 4/17/2018 11:16 AM, Jae Hyun Yoo wrote:
On 4/17/2018 6:16 AM, Rob Herring wrote:
On Mon, Apr 16, 2018 at 6:12 PM, Jae Hyun Yoo
wrote:
On 4/16/2018 11:10 AM, Rob Herring wrote:
On Tue, Apr
On Mon, Apr 16, 2018 at 03:03:47PM -0700, Randy Dunlap wrote:
> On 04/16/18 14:49, Thymo van Beers wrote:
> > Some lines used spaces instead of tabs at line start.
> > This can cause mangled lines in editors due to inconsistency.
> >
> > Replace spaces for tabs where appropriate.
> >
> > Signed-o
On Wed, Apr 18, 2018 at 1:21 AM, Wolfram Sang wrote:
>
>> +The above functions are made available by linking against the libi2c
>> library,
>> +which is provided by the i2c-tools project. See:
>> +https://git.kernel.org/pub/scm/utils/i2c-tools/i2c-tools.git/.
>
> In the beginning, we say that '#
On 04/18/18 11:16, Thymo van Beers wrote:
> On Mon, Apr 16, 2018 at 03:03:47PM -0700, Randy Dunlap wrote:
>> On 04/16/18 14:49, Thymo van Beers wrote:
>>> Some lines used spaces instead of tabs at line start.
>>> This can cause mangled lines in editors due to inconsistency.
>>>
>>> Replace spaces f
Some lines used spaces instead of tabs at line start.
This can cause mangled lines in editors due to inconsistency.
Replace spaces for tabs where appropriate.
Signed-off-by: Thymo van Beers
---
Changes in v3:
- Change indentation in intel_pstate to reduce overrunning 80-column
mark
- Ind
strncpy_from_user and strnlen_user accept user addresses as arguments, and
do not go through the same path as copy_from_user and others, so here we
need to separately handle the case of tagged user addresses as well.
Untag user pointers passed to these functions.
Signed-off-by: Andrey Konovalov
mm/gup.c provides a kernel interface that accepts user addresses and
manipulates user pages directly (for example get_user_pages, that is used
by the futex syscall). Here we also need to handle the case of tagged user
pointers.
Untag addresses passed to this interface.
Signed-off-by: Andrey Konov
Add a note that work on passing tagged user pointers to the kernel via
syscalls has started, but might not be complete yet.
Signed-off-by: Andrey Konovalov
---
Documentation/arm64/tagged-pointers.txt | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/arm64/tag
copy_from_user (and a few other similar functions) are used to copy data
from user memory into the kernel memory or vice versa. Since a user can
provided a tagged pointer to one of the syscalls that use copy_from_user,
we need to correctly handle such pointers.
Do this by untagging user pointers i
This patch makes the untagged_addr macro accept all kinds of address types
(void *, unsigned long, etc.) and allows not to specify type casts in each
place where it is used. This is done by using __typeof__.
Signed-off-by: Andrey Konovalov
---
arch/arm64/include/asm/uaccess.h | 3 ++-
1 file cha
To allow arm64 syscalls accept tagged pointers from userspace, we must
untag them when they are passed to the kernel. Since untagging is done in
generic parts of the kernel (like the mm subsystem), the untagged_addr
macro should be defined for all architectures.
Define it as a noop for other archi
Hi!
arm64 has a feature called Top Byte Ignore, which allows to embed pointer
tags into the top byte of each pointer. Userspace programs (such as
HWASan, a memory debugging tool [1]) might use this feature and pass
tagged user pointers to the kernel through syscalls or other interfaces.
This patc
On 04/18/18 11:51, Thymo van Beers wrote:
> Some lines used spaces instead of tabs at line start.
> This can cause mangled lines in editors due to inconsistency.
>
> Replace spaces for tabs where appropriate.
>
> Signed-off-by: Thymo van Beers
Reviewed-by: Randy Dunlap
> ---
> Changes in v3:
On 4/18/2018 7:32 AM, Rob Herring wrote:
On Tue, Apr 17, 2018 at 3:40 PM, Jae Hyun Yoo
wrote:
On 4/16/2018 4:51 PM, Jae Hyun Yoo wrote:
On 4/16/2018 4:22 PM, Jae Hyun Yoo wrote:
On 4/16/2018 11:14 AM, Rob Herring wrote:
On Tue, Apr 10, 2018 at 11:32:09AM -0700, Jae Hyun Yoo wrote:
This
On Wed, Apr 18, 2018 at 3:28 PM, Jae Hyun Yoo
wrote:
> On 4/18/2018 7:32 AM, Rob Herring wrote:
>>
>> On Tue, Apr 17, 2018 at 3:40 PM, Jae Hyun Yoo
>> wrote:
>>>
>>> On 4/16/2018 4:51 PM, Jae Hyun Yoo wrote:
On 4/16/2018 4:22 PM, Jae Hyun Yoo wrote:
>
>
> On 4/16/2018 1
On 4/18/2018 2:28 PM, Rob Herring wrote:
On Wed, Apr 18, 2018 at 3:28 PM, Jae Hyun Yoo
wrote:
On 4/18/2018 7:32 AM, Rob Herring wrote:
On Tue, Apr 17, 2018 at 3:40 PM, Jae Hyun Yoo
wrote:
On 4/16/2018 4:51 PM, Jae Hyun Yoo wrote:
On 4/16/2018 4:22 PM, Jae Hyun Yoo wrote:
On 4/16/2018
On Tue, Apr 17, 2018 at 03:34:33PM +0100, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be
On Tue, Apr 17, 2018 at 03:34:34PM +0100, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be
On Tue, Apr 17, 2018 at 03:34:35PM +0100, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be
On Tue, Apr 17, 2018 at 03:34:36PM +0100, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be
On Tue, Apr 17, 2018 at 03:34:36PM +0100, Quentin Monnet wrote:
[...]
> @@ -965,6 +984,17 @@ union bpf_attr {
> * Return
> * 0 on success, or a negative error in case of failure.
> *
> + * int bpf_skb_under_cgroup(struct sk_buff *skb, struct bpf_map *map, u32
> index)
> + * Des
Hi Ingo,
Any comments about that?
Now, When users want to support node hotplug with KASLR, they use
'mem=' to restrict the boot-up memory to the first node memory size.
If we want to boot up some hotpluggable node, their memory can't be
shown.
IMO, only few machines can support physical NUMA No
James,
>
>> I do not know when it is merge-window. About the apply version, it does not
>> have limited.
>
> 'git fetch' Linus' tree and look at the tags. 'v4.16' lost its '-rc' suffixes,
> and there isn't a 'v4.17-rc1' yet, so we are still in the merge window.
>
> Linus sends a message to LKM
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