CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2022/05/12 07:33:09
Modified files:
sys/sys : filedesc.h
Log message:
Convert `fd_cmask' and `fd_refcnt' types from u_short to 32 bit types.
`fd_cmask' and `fd_refcnt' are 16 bit variables which are protected by
different locks and could be not MP independent on all architectures.
`fd_cmask' modifications already protected by fd_lock' rwlock(9), but
actually we do all access to both variables with kernel lock held. So
convert them both before make `fd_cmask' access without kernel when
umask(2) will be unlocked.
Proposed by bluhm@.
ok deraadt@ bluhm@
