linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Nikita Danilov <nikita@clusterfs.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Vladimir Saveliev <vs@namesys.com>, linux-mm <linux-mm@kvack.org>,
	Andrew Morton <akpm@osdl.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] per thread page reservation patch
Date: Fri, 07 Jan 2005 23:48:58 +0300	[thread overview]
Message-ID: <m1pt0hq81x.fsf@clusterfs.com> (raw)
In-Reply-To: <20050107190545.GA13898@infradead.org> (Christoph Hellwig's message of "Fri, 7 Jan 2005 19:05:45 +0000")

Christoph Hellwig <hch@infradead.org> writes:

>> diff -puN include/linux/gfp.h~reiser4-perthread-pages include/linux/gfp.h
>> --- linux-2.6.10-rc3/include/linux/gfp.h~reiser4-perthread-pages	2004-12-22 20:09:44.153164276 +0300

[...]

>
>> +int perthread_pages_count(void)
>> +{
>> +	return current->private_pages_count;
>> +}
>> +EXPORT_SYMBOL(perthread_pages_count);
>
> Again a completely useless wrapper.

I disagree. Patch introduces explicit API

int  perthread_pages_reserve(int nrpages, int gfp);
void perthread_pages_release(int nrpages);
int  perthread_pages_count(void);

sufficient to create and use per-thread reservations. Using
current->private_pages_count directly

 - makes API less uniform, not contained within single namespace
   (perthread_pages_*), and worse,

 - exhibits internal implementation detail to the user.

>

[...]

Nikita.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a>

  parent reply	other threads:[~2005-01-07 20:48 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20050103011113.6f6c8f44.akpm@osdl.org>
     [not found] ` <20050103114854.GA18408@infradead.org>
     [not found]   ` <41DC2386.9010701@namesys.com>
     [not found]     ` <1105019521.7074.79.camel@tribesman.namesys.com>
     [not found]       ` <20050107144644.GA9606@infradead.org>
2005-01-07 17:16         ` Vladimir Saveliev
2005-01-07 18:48           ` Andrew Morton
2005-01-07 20:21             ` Nikita Danilov
2005-01-07 19:05           ` Christoph Hellwig
2005-01-07 19:12             ` Christoph Hellwig
2005-01-07 19:21             ` Robert Love
2005-01-07 20:48             ` Nikita Danilov [this message]
2005-01-07 20:54               ` Christoph Hellwig
2005-01-07 21:00                 ` Nikita Danilov
2005-01-07 21:07                   ` Christoph Hellwig
2005-01-07 19:14           ` Paulo Marques
2005-01-07 19:32             ` Christoph Hellwig
2005-01-07 19:42               ` Andi Kleen
2005-01-07 20:55             ` Nikita Danilov
2005-01-07 21:24               ` Andrew Morton
2005-01-07 21:24                 ` Andi Kleen
2005-01-07 22:12                 ` Nikita Danilov
2005-01-07 23:03                   ` Andrew Morton
2005-01-07 23:17                     ` Nikita Danilov
2005-01-07 23:43                       ` Andrew Morton
2005-01-08 12:44                         ` Nikita Danilov
2005-01-08 13:43                           ` Hugh Dickins
2005-01-09 11:35                         ` Marcelo Tosatti
2005-01-09 18:16                           ` Nikita Danilov
2005-01-25 16:39                 ` reiser4 core patches: [Was: [RFC] per thread page reservation patch] Vladimir Saveliev
2005-01-27 10:37                   ` Adrian Bunk
2005-01-27 11:01                   ` Christoph Hellwig

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=m1pt0hq81x.fsf@clusterfs.com \
    --to=nikita@clusterfs.com \
    --cc=akpm@osdl.org \
    --cc=hch@infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=vs@namesys.com \
    /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