Re: True fsync() in Linux (on IDE)

[Hans Reiser]

Chris Mason wrote:

> On Fri, 2004-03-19 at 14:36, Hans Reiser wrote:
>
>  
>
> > I hope I am totally off-base and not understanding you....  Please help 
> > me here.
> >    
>
> Lets look at actual scope of the problem:
>
> filesystem metadata
> filesystem data (fsync, O_SYNC, O_DIRECT)
> block device data (fsync, O_SYNC, O_DIRECT)
>
> Multiply the cases above times each filesystem and also times md and
> device mapper, since the barriers need to aggregate down to all the
> drives.
>
> In other words, just fixing fsync in 2.4 is not enough, and there is
> still considerable development needed in 2.6.  Maybe after all the 2.6
> changes are done and accepted we can consider backporting parts of it to
> 2.4.
>
> -chris
>
>
>
>
>  
In 2.6 does fsync always insert a write barrier when the metadata 
journaling option is set for reiserfs?

--
Hans

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/