6382360 dnode_setblksz assertion failed

[matthew.ahr...@sun.com]

Author: ahrens
Repository: /hg/onnv/onnv-gate
Revision: c0b75a0336583cdb90fe7e7d24cbc3fbc038e557
Log message:
6382360 dnode_setblksz assertion failed

Files:
        update: usr/src/uts/common/fs/zfs/dnode.c