From: Ian Kent <raven@themaw.net>
To: linux-kernel@vger.kernel.org
Subject: [RFC] A couple of questions about the paged I/O sub system
Date: Wed, 21 Oct 2015 14:39:58 +0800 [thread overview]
Message-ID: <1445409598.5025.17.camel@themaw.net> (raw)
Hi all,
I've been looking through some of the page reclaim code and at
truncate_inode_pages().
I'm not familiar with the code and I'm struggling to understand it.
One thing that is puzzling me right now is, if a file has pages that
have been modified and are swapped out when pagevec_lookup_entries() is
called will they be found?
If not then how does truncate_inode_pages(_range)() handle waiting for
these pages to be swapped back in to perform the writeback and
truncation?
Anyone, please?
Ian
next reply other threads:[~2015-10-21 6:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 6:39 Ian Kent [this message]
2015-10-21 19:56 ` Hugh Dickins
2015-10-22 1:36 ` Ian Kent
2015-10-23 1:54 ` Hugh Dickins
2015-10-23 7:41 ` Ian Kent
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=1445409598.5025.17.camel@themaw.net \
--to=raven@themaw.net \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome