Date: Thu, 18 Mar 2004 07:47:58 +0100
From: Jens Axboe <axboe@suse.de>
To: Peter Zaitsev <peter@mysql.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: True  fsync() in Linux (on IDE)
Message-ID: <20040318064757.GA1072@suse.de>
References: <1079572101.2748.711.camel@abyss.local>
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On Wed, Mar 17 2004, Peter Zaitsev wrote:
> Hello,
> 
> I'm wondering is there any way in Linux to do proper fsync(), which
> makes sure data is written to the disk.
> 
> Currently on IDE devices one can see, fsync() only flushes data to the
> drive cache which is not enough for ACID guaranties database server must
> give. 
> 
> There is solution just to disable drive write cache, but it seems to
> slowdown performance way to much.

Chris and I have working real fsync() with the barrier patches. I'll
clean it up and post a patch for vanilla 2.6.5-rc today.

-- 
Jens Axboe

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