Re: [Bug-ddrescue] Feature request: --direct for output file in fill mode

[Antonio Diaz Diaz]

Christian Franke wrote:
> > > I'm not sure. The block layer might e.g. legitimately buffer blocks 
> > > in larger chunks.
> >
> > Not for the input file in fill mode, and not for the output file with 
> > the new --synchronous option of ddrescue 1.8-pre2.
>
> I didn't mean the block buffering from ddrescue, but the block layer of 
> the OS kernel.

When invoked with the --synchronous option, ddrescue follows every call 
to writeblock with a call to fsync. So the kernel shouldn't be 
clustering writes.


Regards,
Antonio.