lkml.org 
[lkml]   [2014]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 4/5] of: Add old prop argument on OF_RECONFIG_UPDATE_PROPERTY
On Wed, Nov 5, 2014 at 8:08 PM, Pantelis Antoniou
<pantelis.antoniou@konsulko.com> wrote:
> Hi Grant,
>
>> On Nov 5, 2014, at 22:01 , Grant Likely <grant.likely@secretlab.ca> wrote:
>>
>> On Tue, 28 Oct 2014 22:33:52 +0200
>> , Pantelis Antoniou <pantelis.antoniou@konsulko.com>
>> wrote:
>>> The notifier now includes the old_prop argument when updating
>>> properties, propagate this API to changeset internals while
>>> also retaining the old behaviour of retrieving the old_property
>>> when NULL is passed.
>>>
>>> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
>>
>> I'm still fuzzy on the need for this patch. Is this just an optimization
>> so that the property doesn't get looked up twice? Or is there a reason
>> when the oldprop really needs to be passed in explicitly?
>>
>
> In the case of overlay's applying a property change the old property has
> been already retrieved. Passing it as an argument saves us a traversal of the
> property list.
>
> On the original series were removal was supported, the old property was required
> since you can't find the old property anymore on the node (it was on another list).
>
> When we go back to revisit the removal case, that API is useful.

Since we're not doing removal anymore, lets drop this patch.

g.


\
 
 \ /
  Last update: 2014-11-06 14:21    [W:0.082 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site