Re: Syncing single filesystem (slow USB writing)

[Andrew Morton]

Andrey Borzenkov <arvidjaar@xxxxxxx> wrote:
>
> On Friday 29 July 2005 07:50, Andrew Morton wrote:
> > > One idea how to improve situation - continue to mount with dsync (having
> > > basically old case) and do frequent sync of filesystem (this culd be
> > > started as HAL callout or whatever). Unfortunately, I could not find a
> > > way to request a sync (flush) of single mount point or block device. Have
> > > I missed something?
> >
> > It's trivial to do in-kernel but no, I'm afraid there isn't a userspace
> > interface for this.
> 
> apparently one should not ask such a question at 7 am. Any reason why 
> BLKFLSBUF does not suite?

That'll only write back data associated with /dev/hdXX (ie: filesystem
metadata) and not the data associated with all the files in the filesystem
which is mounted on /dev/hdXX.

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