6762445 defer signals while locking a mutex and setting its owner field

[roger.faulk...@sun.com]

Author: Roger A. Faulkner <Roger.Faulkner at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: ca1310195b6f3138c3612b5624eb650adc43427e
Total changesets: 1
Log message:
6762445 defer signals while locking a mutex and setting its owner field

Files:
        update: usr/src/lib/libc/port/threads/rwlock.c
        update: usr/src/lib/libc/port/threads/synch.c