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From: Julia Lawall <julia.lawall@inria.fr>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] [PATCH v8] coccinelle: api: add kfree_mismatch script
Date: Fri, 16 Oct 2020 12:07:40 +0200 (CEST)
Message-ID: <alpine.DEB.2.22.394.2010161202360.41305@hadrien> (raw)
In-Reply-To: <3528117.7ODa3CK5J5@sonne>


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On Fri, 16 Oct 2020, Markus Elfring wrote:

> …
> > +    E = \(kmalloc\|kzalloc\|krealloc\|kcalloc\|
> > +          kmalloc_node\|kzalloc_node\|kmalloc_array\|
> > +          kmalloc_array_node\|kcalloc_node\)(...)@kok
> …
>
> How do you think about the possibility for any adjustments according to the order
> of the mentioned function names in proposed disjunctions for the semantic patch language?

Please think about this for 5 seconds.  Maybe there are 2000 calls to
these allocation functions, and maybe there are a million function calls
in the files that contain these calls.  Microscopically optimizing the
treatment of 2000 calls is not going to do anything to help the overall
runtime, which depends on matching all of the above function names against
the one million overall calls.

> Can any additional identifiers become relevant?

If you have other names to suggest, please do.  If you don't have other
names to suggest, then please stop asking such rhetorical questions.

julia

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Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-16  9:46 Markus Elfring
2020-10-16 10:07 ` Julia Lawall [this message]
2020-10-16 10:56   ` Markus Elfring
2020-10-18 16:00 ` [Cocci] Determination of an usage statistic for memory allocation calls Markus Elfring
2020-10-18 16:20   ` Julia Lawall
2020-10-18 16:46     ` Markus Elfring
  -- strict thread matches above, loose matches on Subject: below --
2020-06-05 20:42 [Cocci] [PATCH] coccinelle: api: add kvfree script Denis Efremov
2020-10-16  8:54 ` [Cocci] [PATCH v8] coccinelle: api: add kfree_mismatch script Denis Efremov
2020-10-17 21:17   ` Julia Lawall

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