CVS commit: syssrc

[Bill Sommerfeld <sommerfeld%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   sommerfeld
Date:           Sat May 27 21:00:26 UTC 2000

Modified Files:
        syssrc/sys/kern: sysv_sem.c

Log Message:
Remove existing semaphore system locking mechanism and turn
sys_semconfig into a placebo system call, to avoid giving folks an
easy way to wedge processes which use semaphores.

NOTE: unlike 386bsd and freebsd, processes which did not have
semaphore undo records would not be affected by this problem (reducing
it from a serious local denial-of-service problem to a largely
cosmetic problem, since virtually nobody uses semaphores).  But the
code is just Wrong so we're ripping it out anyway.


To generate a diff of this commit:
cvs rdiff -r1.36 -r1.37 syssrc/sys/kern/sysv_sem.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.