storage/posix: handle dentries from different mount points in readdir

- If posix translator is configured to have export directories to span accross
    different mount points, inode number is transformed in the dentry returned.
    Otherwise, the entry is not added to list of entries returned in readdir
    callback.
  - storage/posix returns ENOENT if the file is on different mount point other
    than that of exported directory and is not configured for export directory
    spanning across multiple mountpoints during lookup. But, since stat-prefetch
    shortcuts lookup calls, its necessary that readdir return only valid
    dentries.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 221 (stat prefetch implementation)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=221

0 files changed, 0 insertions, 0 deletions