CVSROOT: /cvs
Module name: src
Changes by: d...@cvs.openbsd.org 2024/11/19 19:18:45
Modified files:
sys/net : ifq.c ifq.h
Log message:
provide ifq_deq_set_oactive.
ifq_deq_set_oactive is a variation on ifq_set_oactive that can be
called inside an if_deq_begin "transaction".
afresh@ found de(4) was calling ifq_set_oactive while holding the
ifq mutex via ifq_deq_begin, which led to a panic because ifq_set_oactive
also tries to take the ifq mutex. ifq_deq_set_oactive assumes the
caller is already holding the mutex.
de(4) is confusing, so it seemed simpler to add a small tweak to
ifqs than try and do major surgery on such a hairy driver.
tested by afresh@
