From: Ingo Molnar <mingo@elte.hu>
To: "Juan J. Quintela" <quintela@fi.udc.es>
Cc: Linus Torvalds <torvalds@transmeta.com>,
linux-mm@kvack.org, linux-kernel@vger.rutgers.edu
Subject: Re: PATCH: rewrite of invalidate_inode_pages
Date: Fri, 12 May 2000 00:22:29 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.10.10005120019030.9733-100000@elte.hu> (raw)
In-Reply-To: <yttya5ghhtr.fsf@vexeta.dc.fi.udc.es>
On 11 May 2000, Juan J. Quintela wrote:
> Linus, I agree with you here, but we do a get_page 5 lines before, I
> think that if I do a get_page I should do a put_page to liberate it.
get_page() is different - it elevates the page count of a page of
_arbitrary order_. put_page() on the other hand does a __free_page()
[unconditional order 0]. This is a speciality of the Buddy allocator (you
can get a reference to a page through it's pointer without knowing the
order of the page, but you cannot free it without knowing the order), and
it's bad naming (i believe that particular naming is my fault).
Ingo
--
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.eu.org/Linux-MM/
next prev parent reply other threads:[~2000-05-11 22:22 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-05-11 21:40 Juan J. Quintela
2000-05-11 21:47 ` Linus Torvalds
2000-05-11 21:56 ` Juan J. Quintela
2000-05-11 22:22 ` Linus Torvalds
2000-05-12 1:01 ` Juan J. Quintela
2000-05-12 2:02 ` PATCH: new page_cache_get() (try 2) Juan J. Quintela
2000-05-11 22:22 ` Ingo Molnar [this message]
2000-05-11 22:34 ` PATCH: rewrite of invalidate_inode_pages Trond Myklebust
2000-05-11 22:54 ` Juan J. Quintela
2000-05-11 23:17 ` Trond Myklebust
2000-05-11 23:28 ` Juan J. Quintela
2000-05-11 23:55 ` Trond Myklebust
2000-05-12 11:28 ` John Cavan
2000-05-12 11:37 ` Juan J. Quintela
2000-05-12 12:51 ` Trond Myklebust
2000-05-12 13:21 ` Arjan van de Ven
2000-05-12 13:35 ` Trond Myklebust
2000-05-12 17:57 ` Juan J. Quintela
2000-05-12 13:30 ` Juan J. Quintela
2000-05-11 22:05 ` Jeff V. Merkey
2000-05-11 22:28 ` Trond Myklebust
2000-05-11 22:43 ` Juan J. Quintela
2000-05-11 22:56 ` Trond Myklebust
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=Pine.LNX.4.10.10005120019030.9733-100000@elte.hu \
--to=mingo@elte.hu \
--cc=linux-kernel@vger.rutgers.edu \
--cc=linux-mm@kvack.org \
--cc=quintela@fi.udc.es \
--cc=torvalds@transmeta.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