From: tytso@mit.edu
To: Phillip Susi <psusi@cfl.rr.com>
Cc: Matthew Wilcox <matthew@wil.cx>,
linux-fsdevel@vger.kernel.org,
Linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: unified page and buffer cache?
Date: Sat, 8 May 2010 08:52:15 -0400 [thread overview]
Message-ID: <20100508125215.GH18762@thunk.org> (raw)
In-Reply-To: <1273280081.2444.5.camel@faldara>
On Fri, May 07, 2010 at 08:54:41PM -0400, Phillip Susi wrote:
> Would it be possible to somehow keep the current buffer heads, but
> associate them with the inode such that readahead() on the directory
> would work?
Maybe. Try it and send patches. :-)
As I said, it's not high on my priority list and I'm *way* behind on
all sorts of other, much higher priority tasks. If you were going to
do the patches (which would have all sorts of complications since
you'd have to make sure directory pages didn't get written back via
the page write cache or via direct reclaim), I wouldn't reject them
out of hand since there are a few other advantages of doing things
that way....
*However*, I suspect it would be easier for you to simply use the
FIEMAP ioctl had deal with directories separately from files.....
- Ted
prev parent reply other threads:[~2010-05-08 12:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-19 15:51 readahead on directories Phillip Susi
2010-04-21 0:44 ` Jamie Lokier
2010-04-21 14:57 ` Phillip Susi
2010-04-21 16:12 ` Jamie Lokier
2010-04-21 18:10 ` Phillip Susi
2010-04-21 20:22 ` Jamie Lokier
2010-04-21 20:59 ` Phillip Susi
2010-04-21 22:06 ` Jamie Lokier
2010-04-22 7:01 ` Brad Boyer
2010-04-22 14:26 ` Phillip Susi
2010-04-22 17:53 ` Jamie Lokier
2010-04-22 19:23 ` Phillip Susi
2010-04-22 20:35 ` Jamie Lokier
2010-04-22 21:22 ` Phillip Susi
2010-04-22 22:43 ` Jamie Lokier
2010-04-23 4:13 ` Phillip Susi
2010-04-21 18:38 ` Evgeniy Polyakov
2010-04-21 18:51 ` Jamie Lokier
2010-04-21 18:56 ` Evgeniy Polyakov
2010-04-21 20:02 ` Jamie Lokier
2010-04-21 20:21 ` Evgeniy Polyakov
2010-04-21 20:39 ` Jamie Lokier
2010-04-21 19:23 ` Phillip Susi
2010-04-21 20:01 ` Jamie Lokier
2010-04-21 20:13 ` Phillip Susi
2010-04-21 20:37 ` Jamie Lokier
2010-05-07 13:38 ` unified page and buffer cache? (was: readahead on directories) Phillip Susi
2010-05-07 13:53 ` Matthew Wilcox
2010-05-07 15:45 ` unified page and buffer cache? Phillip Susi
2010-05-07 18:30 ` Matthew Wilcox
2010-05-08 0:50 ` Phillip Susi
2010-05-08 0:46 ` tytso
2010-05-08 0:54 ` Phillip Susi
2010-05-08 12:52 ` tytso [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=20100508125215.GH18762@thunk.org \
--to=tytso@mit.edu \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=matthew@wil.cx \
--cc=psusi@cfl.rr.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;
as well as URLs for NNTP newsgroup(s).