LU-4478 ldiskfs: fix problem when ldiskfs_acct_on() fails

ldiskfs_fill_super() does not handle the failure that
ldiskfs_acct_on() returns correctly. This patch fixes
the problem.

Lustre-change: http://review.whamcloud.com/8829/
Lustre-commit: 76015cf061e1692bda1d58a94a55349021f93169

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Wu Libin <lwu@ddn.com>
Change-Id: Ibde4d76c3074aba12440b585391c27b1b81389ec
LU-4019 ofd: setattr don't udpate lvbo with object referenced

we shouldn't allow recursive lu_object_find() while object
can be destroyed. so release the reference to the object
before calling to ldlm_res_lvbo_update() which lookups the
object on its own.

Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Change-Id: If34d89834e352b6d0b8129a6fb4377317833a78a
Reviewed-on: http://review.whamcloud.com/7795
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>