On Wed, Dec 23, 2020 at 12:11:36PM +0000, Matthew Wilcox wrote: > On Wed, Dec 23, 2020 at 08:31:26AM +0000, Christoph Hellwig wrote: > > Can we please make the eBPF code stop referencing this function instead > > of papering over this crap? It has no business poking into page cache > > internals. > > The reference from the BPF code is simply "you can inject errors here". > And I think we want to be able to inject errors to test the error paths, > no? Something that expects a symbol to be global is just pretty broken. I think it need to change so that whatever instrumentation is done can coexist with a static function.
