6360864 lofs blows chunks when file does not exist

[mark.shellenb...@sun.com]

Author: marks
Repository: /hg/onnv/onnv-gate
Revision: 235ed1aa35183028704960519a6804283d1b609a
Log message:
6360864 lofs blows chunks when file does not exist

Files:
        update: usr/src/uts/common/fs/gfs.c
        update: usr/src/uts/common/fs/lofs/lofs_vnops.c