Mateusz Guzik 61f67f32c7 vfs: allow tail call optimisation in vops in the common case
Most frequently used vops boil down to checking SDT probes, doing the call and
checking again. There is no vop_post/pre in their case but the check after the
call prevents tail call optimisation from taking place. Instead, check once
upfront. Kernels with debug or vops with non-empty vop_post still don't short
circuit.

Reviewed by:	kib
Tested by:	pho
Differential Revision:	https://reviews.freebsd.org/D22739
2019-12-16 00:07:51 +00:00
..
2019-06-08 16:26:56 +00:00