> Andrea Arcangeli wrote:
> >
> > I prefer my fix that simply recalls the ->truncate callback if -ENOSPC
> > is returned by prepare_write. vmtruncate seems way overkill,
>
> No opinion on that here. This is what was in -ac. Perhaps Al can
> comment?
a) It's obviously correct
b) it's a friggin error-handling path and I'll take correctness over
anything here.
Keep in mind that you want to zero the area out, so at the very least
truncate_inode_pages() + ->truncate() are needed. And locking/ordering
consideration here are tricky enough to make duplicating them a Bad
Thing(tm).
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