From: Jens Axboe <axboe@suse.de>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
SCSI Mailing List <linux-scsi@vger.kernel.org>,
Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: Getting 'sync' to flush disk cache?
Date: Mon, 14 Aug 2006 22:15:46 +0200 [thread overview]
Message-ID: <20060814201545.GE16819@suse.de> (raw)
In-Reply-To: <1155584098.2886.271.camel@laptopd505.fenrus.org>
On Mon, Aug 14 2006, Arjan van de Ven wrote:
> On Mon, 2006-08-14 at 14:39 -0400, Jeff Garzik wrote:
> > So... has anybody given any thought to enabling fsync(2), fdatasync(2),
> > and sync_file_range(2) issuing a [FLUSH|SYNCHRONIZE] CACHE command?
> >
> > This has bugged me for _years_, that Linux does not do this. Looking at
> > forums on the web, it bugs a lot of other people too.
>
> eh afaik 2.6.17 and such do this if you have barriers enabled...
That is correct, but it only works on reiserfs and XFS and user space
really cannot tell whether it did the right thing or not. File system
developers really should take this more seriously...
--
Jens Axboe
next prev parent reply other threads:[~2006-08-14 20:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-14 18:39 Getting 'sync' to flush disk cache? Jeff Garzik
2006-08-14 19:34 ` Arjan van de Ven
2006-08-14 20:15 ` Jens Axboe [this message]
2006-08-14 21:04 ` Jeff Garzik
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=20060814201545.GE16819@suse.de \
--to=axboe@suse.de \
--cc=akpm@osdl.org \
--cc=arjan@infradead.org \
--cc=jeff@garzik.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-raid@vger.kernel.org \
--cc=linux-scsi@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;
as well as URLs for NNTP newsgroup(s).