LU-2634 ldiskfs: clear extent flag for fast symlink

Fast symlinks on MDT filesystems formatted with the "extents" feature
are created with EXT4_EXTENTS_FL. e2fsck considers this a corruption
and deletes the symlink.

The patch is to clear LDISKFS_INODE_EXTENTS flag in
osd_ldiskfs_writelink() just as ext4_symlink() does.

Signed-off-by: Liu Ying <emoly.liu@intel.com>
Change-Id: Ib7c1eee7becfaf2b80805d3f6c13658686ad5699
Reviewed-on: http://review.whamcloud.com/5154
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
LU-1468 o2iblnd: Support OFED-3.5 for o2ib

OFED is having new structure based on linux kernel code + backports
and packaging. Here is detailed information.
http://lists.openfabrics.org/pipermail/ewg/2011-December/017156.html

This patches are the lustre build improvements to support OFED 3.5,
3.x whatever future OFED release.

Signed-off-by: Shuichi Ihara <sihara@ddn.com>
Change-Id: Id4ffc39bc7fc24cc591bf6fb47e9b0e662993bda
Reviewed-on: http://review.whamcloud.com/3011
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Brian J. Murrell <brian.murrell@intel.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>