Re: 2.6.9-mm1: LVM stopped working (dio-handle-eof.patch)

From: Andrew Morton
Date: Wed Oct 27 2004 - 15:37:52 EST


Mathieu Segaud <matt@xxxxxxxxxxxxxxxx> wrote:
>
> Jens Axboe <axboe@xxxxxxx> disait dernièrement que :
>
>
> > This feels pretty icky, but should suffice for testing. Does it make a
> > difference?
> >
> > --- /opt/kernel/linux-2.6.10-rc1-mm1/fs/direct-io.c 2004-10-27 08:29:51.866931262 +0200
> > +++ linux-2.6.10-rc1-mm1/fs/direct-io.c 2004-10-27 08:41:20.292172299 +0200
> > @@ -987,8 +987,8 @@
> > isize = i_size_read(inode);
> > if (bytes_todo > (isize - offset))
> > bytes_todo = isize - offset;
> > - if (!bytes_todo)
> > - return 0;
> > + if (bytes_todo < PAGE_SIZE)
> > + bytes_todo = PAGE_SIZE;
> >
> > for (seg = 0; seg < nr_segs && bytes_todo; seg++) {
> > user_addr = (unsigned long)iov[seg].iov_base;
>
> As 2.6.10-rc1-mm1 failed (as expected), I tried tour fix applied upon
> 2.6.10-rc1-mm1. This did not make any difference.
> The only workaround for now is backing out dio-handle-eof-fix.patch and
> dio-handle-eof.patch

Could someone pleeeeze send out a simple recipe for repeating this problem?
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