Call rw_access lazily so we only call access just before we need to 
write to the file to avoid calling access as often.  Deprecated bit in
profile structures to track writability.

Commit By: lxs



Revision: 20341
Changed Files:
U   trunk/src/util/profile/prof_file.c
U   trunk/src/util/profile/prof_init.c
U   trunk/src/util/profile/prof_int.h