staging/lustre/osc: split different type of IO
staging/lustre/osc: split different type of IO

Do not allow different type of pages at the same rpc.

Signed-off-by: Alexander Boyko <cfa59b601bf071cb54bdd53ecc00ea3af69c3711@xyratex.com>
Signed-off-by: Vitaly Fertman <2e5bd42d2403f82ce81a8fa46791d7577125dc35@xyratex.com>
Xyratex-bug-id: MRP-859
Reviewed-on: http://review.whamcloud.com/10930
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3192
Reviewed-by: Jinshan Xiong <4f9c0b864b7f9eb8a22fd0e8ad685c34bbc01268@intel.com>
Reviewed-by: Niu Yawei <9a4306993a9b05dce7bd8a5e926759eea151be9f@intel.com>
Signed-off-by: Oleg Drokin <65b2ca07820e940f66d8901813c729ec10a548f5@intel.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs