SX_NOWITNESS
#define RW_FLAGS (SX_DUPOK | SX_NOWITNESS)
linux_mutex_init(_m, mutex_name(#_m), SX_NOWITNESS)
linux_mutex_init(_m, _n, SX_NOWITNESS)
sx_init_flags(&rw->sx, name, SX_NOWITNESS);
linux_mutex_init(&lock->base, ww_class->mutex_name, SX_NOWITNESS);
sx_init_flags(&udev->sr_sx, "USB suspend and resume SX lock", SX_NOWITNESS);
sx_init_flags(&anp->an_vnode_lock, "autofsvlk", SX_NOWITNESS);
xflags | SX_NOWITNESS);
MPASS((opts & ~(SX_QUIET | SX_RECURSE | SX_NOWITNESS | SX_DUPOK |
if (!(opts & SX_NOWITNESS))