From: Andrew Morton <akpm@zip.com.au>
To: alad@hss.hns.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: vmscan.c: shrink_cache() doubt
Date: Sat, 29 Dec 2001 00:41:26 -0800 [thread overview]
Message-ID: <3C2D81B6.D9B78DDA@zip.com.au> (raw)
In-Reply-To: <65256B31.002E1834.00@sandesh.hss.hns.com>
alad@hss.hns.com wrote:
>
> In shrink_cache(), we have
>
> if (!page->buffers && (page_count(page) != 1 || !page->mapping))
> goto page_mapped;
> .
> .
> .
> page_mapped:
> if (--max_mapped >=0)
> continue;
>
> Assume page->buffers == NULL and page->count == 1, then why jump to page_mapped
> if page->mapping == NULL ??
>
These are anonymous pages - memory returned by malloc() rather
than by mmap().
Replace max_mapped with max_unfreeable and replace page_mapped
with page_unfreeable and it may make some sense.
-
prev parent reply other threads:[~2001-12-29 8:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-29 8:18 vmscan.c: shrink_cache() doubt alad
2001-12-29 8:41 ` Andrew Morton [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=3C2D81B6.D9B78DDA@zip.com.au \
--to=akpm@zip.com.au \
--cc=alad@hss.hns.com \
--cc=linux-kernel@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.