On Monday 28 January 2008 14:38:57 Alan Cox wrote:
> > Also worse really fixing it would be a major change to the VFS
> > because of the way ->read/write are defined :/
>
> I don't see a problem there. ->read and ->write update the passed pointer
> which is not the real f_pos anyway. Just the copies need fixing.
They are effectually doing a decoupled read/modify/write cycle. e.g.:
A B
read fpos
read fpos
fpos += A fpos += B
write fpos
write fpos
So you get overlapping reads. Probably not good.
-Andi
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