On Wed, Jan 29, 2003 at 01:42:05PM -0800, Andrew Morton wrote:
> Oliver Xymoron <oxymoron@waste.org> wrote:
> >
> > > - fsync_buffers_list() will handle them and will return errors to the fsync()
> > > caller. We only need to handle those buffers which were stripped
> > > asynchronously by VM activity.
> >
> > Are we guaranteed that we'll get a try_to_free_buffers after IO
> > completion and before sync? I haven't dug through this path much.
>
> Think so. That's the only place where buffers are detached. Otherwise,
> fsync_buffers_list() looks at them all.
The other problem here is that by the time we're in
try_to_free_buffers we no longer know that we're looking at a harmless
stale page (readahead?) or a write error, which is why Linus had me
make the separate end_buffer functions. So I don't think this pans out
- thoughts?
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