On Thu, Mar 21, 2024 at 11:09:25AM -0600, Jens Axboe wrote: > Where is this IO coming from? The normal block level dio has checks. And > in fact they are expensive... How is this expensive when we need the bio cache lines all the time during I/O submission which follows instantly? > If we add this one, then we should be able > to kill the block/fops.c checks, no? That would mean we'd only get an async error back, and it would be past say page cache invalidation. Not sure that's a good way to handle failed alignment from userspace.
