linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Valentin Schneider <valentin.schneider@arm.com>
To: David Laight <David.Laight@ACULAB.COM>,
	'Alexey Dobriyan' <adobriyan@gmail.com>
Cc: "mingo@redhat.com" <mingo@redhat.com>,
	"peterz@infradead.org" <peterz@infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"rcu@vger.kernel.org" <rcu@vger.kernel.org>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"axboe@kernel.dk" <axboe@kernel.dk>,
	"aarcange@redhat.com" <aarcange@redhat.com>
Subject: Re: [PATCH] sched: make struct task_struct::state 32-bit
Date: Wed, 4 Sep 2019 11:25:14 +0100	[thread overview]
Message-ID: <d46b479b-247b-a291-75f9-b60dd7114440@arm.com> (raw)
In-Reply-To: <651c419e45e043e9be8d0877b5a5406d@AcuMS.aculab.com>

On 04/09/2019 10:43, David Laight wrote:
> From: Alexey Dobriyan
>> Sent: 03 September 2019 19:19
> ...
>>> How did you come up with this changeset, did you pickaxe for some regexp?
>>
>> No, manually, backtracking up to the call chain.
>> Maybe I missed a few places.
> 
> Renaming the structure field and getting the compiler to find all the uses can help.
> 
> 	David
> 

It's a good idea but sadly doesn't cover whatever the config doesn't
compile. A safer starting point could be

---
@state_var@
struct task_struct *p;
identifier var;
@@
(
var = p->state
|
p->state = var
)

@@
identifier state_var.var;
@@
- var
+ FIXME
---

But I'm hoping we can get something even better from coccinelle, stay
tuned...

> -
> Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
> Registration No: 1397386 (Wales)
> 

      reply	other threads:[~2019-09-04 10:25 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-02 21:05 [PATCH] sched: make struct task_struct::state 32-bit Alexey Dobriyan
2019-09-02 23:02 ` Valentin Schneider
2019-09-03 16:23   ` Alexey Dobriyan
2019-09-03 16:31     ` Valentin Schneider
2019-09-03  6:51 ` [dm-devel] " Christoph Hellwig
2019-09-03  7:13   ` Peter Zijlstra
2019-09-03 17:29 ` Valentin Schneider
2019-09-03 18:19   ` Alexey Dobriyan
2019-09-03 21:51     ` Valentin Schneider
2019-09-04 12:07       ` Valentin Schneider
2019-09-04 17:48         ` Valentin Schneider
2019-09-05 15:51         ` Markus Elfring
2019-09-05 16:52           ` Valentin Schneider
2019-09-23 10:26             ` Valentin Schneider
2019-09-23 10:34               ` Julia Lawall
2019-09-23 11:26                 ` Valentin Schneider
2019-09-23 11:43                   ` Julia Lawall
2019-09-23 13:23                     ` Valentin Schneider
2019-09-24  8:28                   ` Markus Elfring
2019-09-24  8:07               ` Markus Elfring
2019-09-04  9:43     ` [PATCH] " David Laight
2019-09-04 10:25       ` Valentin Schneider [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d46b479b-247b-a291-75f9-b60dd7114440@arm.com \
    --to=valentin.schneider@arm.com \
    --cc=David.Laight@ACULAB.COM \
    --cc=aarcange@redhat.com \
    --cc=adobriyan@gmail.com \
    --cc=axboe@kernel.dk \
    --cc=dm-devel@redhat.com \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=rcu@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).