Subject: Re: True  fsync() in Linux (on IDE)
From: Chris Mason <mason@suse.com>
To: reiser@namesys.com
Cc: Peter Zaitsev <peter@mysql.com>, Jens Axboe <axboe@suse.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
In-Reply-To: <405B58BB.1020208@namesys.com>
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Date: Fri, 19 Mar 2004 15:38:27 -0500
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On Fri, 2004-03-19 at 15:31, Hans Reiser wrote:
> Chris Mason wrote:
> 
> >
> >>- It depends on type of write (if it changes mata data or not)
> >>- Finally it depends on file system and even journal mount options
> >>
> >>    
> >>
> >All of the above is correct.
> >  
> >
> Doesn't the above statement contradict the following?:
> 
Sorry for the confusion, I thought he was asking about 2.4.x. 

> >In 2.6 does fsync always insert a write barrier when the metadata 
> >> journaling option is set for reiserfs?
> >    
> >
> 
> Yes, fsync is done in the 2.6 patches. 
> 
> and I was imprecise, I should have asked, does fsync flush the disk 
> cache regardless of what mount options are set or data/metadata touched 
> in the 2.6 patches?
> 

-chris


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