Re: Syncing single filesystem (slow USB writing)

From: Andrew Morton
Date: Fri Jul 29 2005 - 06:22:04 EST

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.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at