Subject: Re: Synchronous mounts of FFS
To: Brian Grayson \(home\) <bgrayson@austin.rr.com>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: netbsd-users
Date: 11/29/2001 22:50:57
On Thu, Nov 29, 2001 at 09:56:38AM -0600, Brian Grayson (home) wrote:
>   No, I don't think I am thinking of journaling or LFS or anything.  The
> mount man page says that under the sync option:
>  
>      All I/O to the file system should be done syn-
>      chronously. This is not equivalent to the normal mode
>      in which only metadata is written synchronously.
> 
>   What does "synchronously" mean?  I thought it meant that if you are
> writing two different blocks to the disk, you'll launch the write
> for one, wait until it completes, and then launch the write for the
> other.

Unless you're using tagged queuing.
The 'synchronous' is per file descriptor I think.

--
Manuel Bouyer <bouyer@antioche.eu.org>
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