On Sat, Dec 26, 2020 at 10:33:25AM -0700, Jens Axboe wrote: > +.TP > +.B RESOLVE_CACHED > +Make the open operation fail unless all path components are already present > +in the kernels lookup cache. > +If any kind of revalidation or IO is needed to satisfy the lookup, Usually spelled I/O in manpages. > +.BR openat2 () > +fails with the error > +.B EAGAIN. > +This is useful in providing a fast path open that can be performed without > +resorting to thread offload, or other mechanism that an application might > +use to offload slower operations. That almost reads backwards ... how about this? This provides a fast path open that can be used when an application does not wish to block. It allows the application to hand off the lookup to a separate thread which can block.
