prof.pending = uintptr(unsafe.Pointer(l))
	prof.cycles = cycles
}

// From unlock2, we might not be holding a p in this code.
//
//go:nowritebarrierrec
func (prof *mLockProfile) recordUnlock(l *mutex) {
	if uintptr(unsafe.Pointer(l)) == prof.pending {
		prof.captureStack()
	}
	if gp := getg(); gp.m.locks == 1 && gp.m.mLockProfile.cycles != 0 {
		prof.store()
	}
}