Removed groupmember(). Changed vfrefcnt() so that ubc_isinuse() is checked. Removed unneeded precomp defines in vop_stdfsync().
Removed groupmember().
Changed vfrefcnt() so that ubc_isinuse() is checked.
Removed unneeded precomp defines in vop_stdfsync().

georghe-crihan/ext2fsx,georghe-crihan/ext2fsx,georghe-crihan/ext2fsx,georghe-crihan/ext2fsx