Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Daniel Baluta]

On Fri, Nov 6, 2015 at 9:50 AM, Christoph Hellwig <hch@lst.de> wrote:
> Is this going into 4.4 through the iio tree?  If not is there any chance
> to get it in through some other tree?  While we're not past the merge
> window is trivial new functionality that doesn't change code, and I'd like to
> move existing configfs users over to it ASAP, so getting it into a baseline
> tree ASAP would be immensely helpful.

I think Jonathan could take this via linux-iio around Sunday.

Could anyone do it faster :)? Andrew?

>
> Oh, and:
>
> Reviewed-by: Christoph Hellwig <hch@lst.de>

I didn't add your Reviewed-by tag because I removed
configfs_alloc_group/configfs_free_group functions.

Thanks Christoph!

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Lars-Peter Clausen]

On 11/06/2015 09:48 AM, Daniel Baluta wrote:
> On Fri, Nov 6, 2015 at 9:50 AM, Christoph Hellwig <hch@lst.de> wrote:
>> Is this going into 4.4 through the iio tree?  If not is there any chance
>> to get it in through some other tree?  While we're not past the merge
>> window is trivial new functionality that doesn't change code, and I'd like to
>> move existing configfs users over to it ASAP, so getting it into a baseline
>> tree ASAP would be immensely helpful.
> 
> I think Jonathan could take this via linux-iio around Sunday.
> 

Since the IIO tree goes through the staging tree, which is already closed
for 4.4, we won't be able to get it into 4.4 through the IIO tree. The whole
configfs support for IIO will have to wait for 4.5.

> Could anyone do it faster :)? Andrew?

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

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On 6 November 2015 09:31:25 GMT+00:00, Lars-Peter Clausen <lars@metafoo.de> wrote:
>On 11/06/2015 09:48 AM, Daniel Baluta wrote:
>> On Fri, Nov 6, 2015 at 9:50 AM, Christoph Hellwig <hch@lst.de> wrote:
>>> Is this going into 4.4 through the iio tree?  If not is there any
>chance
>>> to get it in through some other tree?  While we're not past the
>merge
>>> window is trivial new functionality that doesn't change code, and
>I'd like to
>>> move existing configfs users over to it ASAP, so getting it into a
>baseline
>>> tree ASAP would be immensely helpful.
>> 
>> I think Jonathan could take this via linux-iio around Sunday.
>> 
>
>Since the IIO tree goes through the staging tree, which is already
>closed
>for 4.4, we won't be able to get it into 4.4 through the IIO tree. The
>whole
>configfs support for IIO will have to wait for 4.5.

Yup. I'd have no objection to a direct request to Linus to take this as a one off. 

Or we can do an immutable branch and pull it into all relevant subtrees so all
users can hit mainline all in 4.5 without waiting for a cycle. That tends to work well for bits like this.

Something odd going on with my email as I missed this version entirely. Will
investigate.  Reading up on the archive.

Jonathan
>
>> Could anyone do it faster :)? Andrew?
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Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Christoph Hellwig]

On Fri, Nov 06, 2015 at 05:38:53PM +0000, Jonathan Cameron wrote:
> Yup. I'd have no objection to a direct request to Linus to take this as a one off. 

I'd appreciate if you could give it a try.

> Or we can do an immutable branch and pull it into all relevant subtrees so all
> users can hit mainline all in 4.5 without waiting for a cycle. That tends to work well for bits like this.

That would be the second best option.

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 07/11/15 13:09, Christoph Hellwig wrote:
> On Fri, Nov 06, 2015 at 05:38:53PM +0000, Jonathan Cameron wrote:
>> Yup. I'd have no objection to a direct request to Linus to take this as a one off. 
> 
> I'd appreciate if you could give it a try.
Unfortunately this would fall out of scope for me to send.  The bit we care
about is definitely a file system code change in configfs.  Whilst
the first user will probably be IIO, I can't justify to Linus why 
it is necessary to put this in place ASAP rather than via normal paths
(which in my case is via Greg)

If Joel was active I'd suggest it should come from him if we want to try
this, as he isn't (as a side note, we should probably update the MAINTAINERS
entry to mark it as unmaintained I guess), who ends up being maintainer of
last resort for file systems?
<quick git log browse later>

I'd say you need to make a case to Al Viro or Andrew Morton.

> 
>> Or we can do an immutable branch and pull it into all relevant subtrees so all
>> users can hit mainline all in 4.5 without waiting for a cycle. That tends to work well for bits like this.
> 
> That would be the second best option.
I can do this easily enough and it's probably my preferred option.  

Jonathan
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Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Andrew Morton]

On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de> wrote:

> is this simple addition something you could still send on to Linus
> for this merge window?  I would make my life easier to have it in
> so I could start using it in patches for various trees in the next
> merge window.

It's super late, but the configfs changes are obviously safe to
existing code.

What about the IIO changes?  Will someone be merging them for 4.5-rc1,
or something else?

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
>On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
>wrote:
>
>> is this simple addition something you could still send on to Linus
>> for this merge window?  I would make my life easier to have it in
>> so I could start using it in patches for various trees in the next
>> merge window.
>
>It's super late, but the configfs changes are obviously safe to
>existing code.
>
>What about the IIO changes?  Will someone be merging them for 4.5-rc1,
>or something else?
Yes. I'll take the IIO bits and ultimately they'll go through Greg KH for the 4.5 
merge window.

Jonathan
>
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Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Joel Becker]

On Tue, Nov 10, 2015 at 01:12:37PM -0800, Andrew Morton wrote:
> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de> wrote:
> 
> > is this simple addition something you could still send on to Linus
> > for this merge window?  I would make my life easier to have it in
> > so I could start using it in patches for various trees in the next
> > merge window.
> 
> It's super late, but the configfs changes are obviously safe to
> existing code.

Loving this change, even if this is merely a drive-by:

Acked-by: Joel Becker <jlbec@evilplan.org>

> 
> What about the IIO changes?  Will someone be merging them for 4.5-rc1,
> or something else?
> 

-- 

"Copy from one, it's plagiarism; copy from two, it's research."
        - Wilson Mizner

			http://www.jlbec.org/
			jlbec@evilplan.org

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 11/11/15 06:43, Jonathan Cameron wrote:
> 
> 
> On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
>> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
>> wrote:
>>
>>> is this simple addition something you could still send on to Linus
>>> for this merge window?  I would make my life easier to have it in
>>> so I could start using it in patches for various trees in the next
>>> merge window.
>>
>> It's super late, but the configfs changes are obviously safe to
>> existing code.
>>
>> What about the IIO changes?  Will someone be merging them for 4.5-rc1,
>> or something else?
> Yes. I'll take the IIO bits and ultimately they'll go through Greg KH for the 4.5 
> merge window.
> 
Hi Andrew,

Just taken a quick look at your mmotm list and see this ended up in the
mainline later group (fair enough given the timing!).
As such shall we fall back to plan b) a special git branch pulled into the trees
of anyone who cares?

I'll base such a tree on some obvious point in Linus' tree (either 4.4 or 4.5-rc1)
That way I can get the IIO stuff queued up asap and we can build on that going
forward during this cycle.

Thanks,

Jonathan

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Andrew Morton]

On Sun, 15 Nov 2015 10:39:08 +0000 Jonathan Cameron <jic23@kernel.org> wrote:

> On 11/11/15 06:43, Jonathan Cameron wrote:
> > 
> > 
> > On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
> >> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
> >> wrote:
> >>
> >>> is this simple addition something you could still send on to Linus
> >>> for this merge window?  I would make my life easier to have it in
> >>> so I could start using it in patches for various trees in the next
> >>> merge window.
> >>
> >> It's super late, but the configfs changes are obviously safe to
> >> existing code.
> >>
> >> What about the IIO changes?  Will someone be merging them for 4.5-rc1,
> >> or something else?
> > Yes. I'll take the IIO bits and ultimately they'll go through Greg KH for the 4.5 
> > merge window.
> > 
> Hi Andrew,
> 
> Just taken a quick look at your mmotm list and see this ended up in the
> mainline later group (fair enough given the timing!).
> As such shall we fall back to plan b) a special git branch pulled into the trees
> of anyone who cares?
> 
> I'll base such a tree on some obvious point in Linus' tree (either 4.4 or 4.5-rc1)
> That way I can get the IIO stuff queued up asap and we can build on that going
> forward during this cycle.

I plan to send configfs-allow-dynamic-group-creation.patch to Linus
this week.  I'll retain 

iio-core-introduce-iio-configfs-support.patch
iio-core-introduce-iio-software-triggers.patch
iio-core-introduce-iio-software-triggers-fix.patch
iio-trigger-introduce-iio-hrtimer-based-trigger.patch
iio-documentation-add-iio-configfs-documentation.patch

with a view to dropping them once I see them turn up in linux-next.

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 17 November 2015 23:47:16 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
>On Sun, 15 Nov 2015 10:39:08 +0000 Jonathan Cameron <jic23@kernel.org>
>wrote:
>
>> On 11/11/15 06:43, Jonathan Cameron wrote:
>> > 
>> > 
>> > On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton
><akpm@linux-foundation.org> wrote:
>> >> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
>> >> wrote:
>> >>
>> >>> is this simple addition something you could still send on to
>Linus
>> >>> for this merge window?  I would make my life easier to have it in
>> >>> so I could start using it in patches for various trees in the
>next
>> >>> merge window.
>> >>
>> >> It's super late, but the configfs changes are obviously safe to
>> >> existing code.
>> >>
>> >> What about the IIO changes?  Will someone be merging them for
>4.5-rc1,
>> >> or something else?
>> > Yes. I'll take the IIO bits and ultimately they'll go through Greg
>KH for the 4.5 
>> > merge window.
>> > 
>> Hi Andrew,
>> 
>> Just taken a quick look at your mmotm list and see this ended up in
>the
>> mainline later group (fair enough given the timing!).
>> As such shall we fall back to plan b) a special git branch pulled
>into the trees
>> of anyone who cares?
>> 
>> I'll base such a tree on some obvious point in Linus' tree (either
>4.4 or 4.5-rc1)
>> That way I can get the IIO stuff queued up asap and we can build on
>that going
>> forward during this cycle.
>
>I plan to send configfs-allow-dynamic-group-creation.patch to Linus
>this week.  I'll retain 
>
>iio-core-introduce-iio-configfs-support.patch
>iio-core-introduce-iio-software-triggers.patch
>iio-core-introduce-iio-software-triggers-fix.patch
>iio-trigger-introduce-iio-hrtimer-based-trigger.patch
>iio-documentation-add-iio-configfs-documentation.patch
>
>with a view to dropping them once I see them turn up in linux-next.

That's great. Thanks.

Jonathan

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Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 18/11/15 07:33, Jonathan Cameron wrote:
> 
> 
> On 17 November 2015 23:47:16 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
>> On Sun, 15 Nov 2015 10:39:08 +0000 Jonathan Cameron <jic23@kernel.org>
>> wrote:
>>
>>> On 11/11/15 06:43, Jonathan Cameron wrote:
>>>>
>>>>
>>>> On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton
>> <akpm@linux-foundation.org> wrote:
>>>>> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
>>>>> wrote:
>>>>>
>>>>>> is this simple addition something you could still send on to
>> Linus
>>>>>> for this merge window?  I would make my life easier to have it in
>>>>>> so I could start using it in patches for various trees in the
>> next
>>>>>> merge window.
>>>>>
>>>>> It's super late, but the configfs changes are obviously safe to
>>>>> existing code.
>>>>>
>>>>> What about the IIO changes?  Will someone be merging them for
>> 4.5-rc1,
>>>>> or something else?
>>>> Yes. I'll take the IIO bits and ultimately they'll go through Greg
>> KH for the 4.5 
>>>> merge window.
>>>>
>>> Hi Andrew,
>>>
>>> Just taken a quick look at your mmotm list and see this ended up in
>> the
>>> mainline later group (fair enough given the timing!).
>>> As such shall we fall back to plan b) a special git branch pulled
>> into the trees
>>> of anyone who cares?
>>>
>>> I'll base such a tree on some obvious point in Linus' tree (either
>> 4.4 or 4.5-rc1)
>>> That way I can get the IIO stuff queued up asap and we can build on
>> that going
>>> forward during this cycle.
>>
>> I plan to send configfs-allow-dynamic-group-creation.patch to Linus
>> this week.  I'll retain 
>>
>> iio-core-introduce-iio-configfs-support.patch
>> iio-core-introduce-iio-software-triggers.patch
>> iio-core-introduce-iio-software-triggers-fix.patch
>> iio-trigger-introduce-iio-hrtimer-based-trigger.patch
>> iio-documentation-add-iio-configfs-documentation.patch
>>
>> with a view to dropping them once I see them turn up in linux-next.
> 
> That's great. Thanks.
I've now applied the rest of the series to my local togreg branch and pushed
out as testing for the autobuilders to play with them.

This branch will get rebased once Greg has picked up the previous PULL request.

Thanks,

Jonathan
> 
> Jonathan
> 

Re: [PATCH v10 1/5] configfs: Allow dynamic group creation

[Jonathan Cameron]

On 29/11/15 17:27, Jonathan Cameron wrote:
> On 18/11/15 07:33, Jonathan Cameron wrote:
>>
>>
>> On 17 November 2015 23:47:16 GMT+00:00, Andrew Morton <akpm@linux-foundation.org> wrote:
>>> On Sun, 15 Nov 2015 10:39:08 +0000 Jonathan Cameron <jic23@kernel.org>
>>> wrote:
>>>
>>>> On 11/11/15 06:43, Jonathan Cameron wrote:
>>>>>
>>>>>
>>>>> On 10 November 2015 21:12:37 GMT+00:00, Andrew Morton
>>> <akpm@linux-foundation.org> wrote:
>>>>>> On Tue, 10 Nov 2015 07:51:26 +0100 Christoph Hellwig <hch@lst.de>
>>>>>> wrote:
>>>>>>
>>>>>>> is this simple addition something you could still send on to
>>> Linus
>>>>>>> for this merge window?  I would make my life easier to have it in
>>>>>>> so I could start using it in patches for various trees in the
>>> next
>>>>>>> merge window.
>>>>>>
>>>>>> It's super late, but the configfs changes are obviously safe to
>>>>>> existing code.
>>>>>>
>>>>>> What about the IIO changes?  Will someone be merging them for
>>> 4.5-rc1,
>>>>>> or something else?
>>>>> Yes. I'll take the IIO bits and ultimately they'll go through Greg
>>> KH for the 4.5 
>>>>> merge window.
>>>>>
>>>> Hi Andrew,
>>>>
>>>> Just taken a quick look at your mmotm list and see this ended up in
>>> the
>>>> mainline later group (fair enough given the timing!).
>>>> As such shall we fall back to plan b) a special git branch pulled
>>> into the trees
>>>> of anyone who cares?
>>>>
>>>> I'll base such a tree on some obvious point in Linus' tree (either
>>> 4.4 or 4.5-rc1)
>>>> That way I can get the IIO stuff queued up asap and we can build on
>>> that going
>>>> forward during this cycle.
>>>
>>> I plan to send configfs-allow-dynamic-group-creation.patch to Linus
>>> this week.  I'll retain 
>>>
>>> iio-core-introduce-iio-configfs-support.patch
>>> iio-core-introduce-iio-software-triggers.patch
>>> iio-core-introduce-iio-software-triggers-fix.patch
>>> iio-trigger-introduce-iio-hrtimer-based-trigger.patch
>>> iio-documentation-add-iio-configfs-documentation.patch
>>>
>>> with a view to dropping them once I see them turn up in linux-next.
>>
>> That's great. Thanks.
> I've now applied the rest of the series to my local togreg branch and pushed
> out as testing for the autobuilders to play with them.
> 
> This branch will get rebased once Greg has picked up the previous PULL request.
Now rebased - I also made a tiny change to take the iio_configfs_subsys
structure static in response to a sparse warning - shout if I've done
anything silly.


> 
> Thanks,
> 
> Jonathan
>>
>> Jonathan
>>
> 
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