Re: move block #A to block #B on a given device.
Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz)
Fri, 5 Nov 1999 15:54:08 +0100 (CET)
> > > > don't want to read block B as its data is going to be discarded anyway,
> > > > why generate extra io?
> > >
> > > Exactly.
> >
> > I think doing pure getblk is wrong (someone else can call bread and
> > overwrite data in buffer). There should be bh = getblk();
> > mark_buffer_uptodate(bh, 1)
>
> Yes, of course. Also
BTW. neither getblk nor mark_buffer_uptodate check for i/o completion.
Isn't it race? Many filesystem do it this way.
Mikulas Patocka
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