]> git.baikalelectronics.ru Git - kernel.git/commit
staging: lustre: statahead: drop support for remote entry
authorLai Siyao <lai.siyao@intel.com>
Sun, 29 Jan 2017 00:04:30 +0000 (19:04 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 3 Feb 2017 12:01:36 +0000 (13:01 +0100)
commit22414ea26b142f68f970fc0a6ecf9c4139e3b1e6
treedce471f423771bb20100d3e4d0a45659d583786f
parentf6b963bcb99f06c166077acaf4c2b735c3698035
staging: lustre: statahead: drop support for remote entry

This patch dropped support for remote entry statahead, because it
needs 2 async RPCs to fetch both LOOKUP lock from parent MDT and
UPDATE lock from client MDT, which is complicated. Plus not
supporting remote entry statahead won't cause any issue.

* pack child fid in statahead request.
* lmv_intent_getattr_async() will compare parent and child MDT,
  if child is remote, return -ENOTSUPP.

Signed-off-by: Lai Siyao <lai.siyao@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6578
Reviewed-on: http://review.whamcloud.com/15767
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/lustre/lustre/include/obd.h
drivers/staging/lustre/lustre/include/obd_class.h
drivers/staging/lustre/lustre/llite/statahead.c
drivers/staging/lustre/lustre/lmv/lmv_obd.c
drivers/staging/lustre/lustre/mdc/mdc_internal.h
drivers/staging/lustre/lustre/mdc/mdc_locks.c