CVSROOT: /cvs
Module name: src
Changes by: v...@cvs.openbsd.org 2020/02/05 10:03:13
Modified files:
sys/kern : kern_descrip.c kern_event.c
Log message:
Move kernel locking inside knote_fdclose() from finishdup() and
fdrelease(). This makes the upper layer of file descriptor closing
free of KERNEL_LOCK() when the process does not use kqueue.
The kernel locking around fdremove() and knote_fdclose() is no longer
needed because kqueue_register() checks if there has been a race with
file descriptor close. Moreover, the locking became ineffective against
these races when filterops callbacks were allowed to sleep.
OK anton@, mpi@
