Commit 0022c6bc authored by Artem Blagodarenko's avatar Artem Blagodarenko Committed by Greg Kroah-Hartman
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staging: lustre: client: Fix mkdir -i 1 from DNE2 client to DNE1 server 



After DNE phase 2 has been added to client it sends
create request to slave MDT.  DNT1-only server doesn't
expect request to slave MDT from client. It expects
only cross-mdt request from master MDT. Thus if DNE2
client tries to "mkdir -i 1" on DNE1 server, then
LBUG happened.

This patch adds OBD_CONNECT_DIR_STRIPE connection
flag check on client side. If striped directories are not
supported by server, then create requrest is sent to
master MDT.

Signed-off-by: default avatarArtem Blagodarenko <artem_blagodarenko@xyratex.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6071
Xyratex-bug-id: MRP-2319
Reviewed-on: http://review.whamcloud.com/13189


Reviewed-by: default avatarAndreas Dilger <andreas.dilger@intel.com>
Reviewed-by: default avatarwang di <di.wang@intel.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7ebb0ef3

drivers/staging/lustre/lustre/lmv/lmv_obd.c

+12 −8
Original line number Diff line number Diff line
@@ -1688,6 +1688,7 @@ static int lmv_create(struct obd_export *exp, struct md_op_data *op_data, 
	if (rc)

		return rc;



	if (exp_connect_flags(exp) & OBD_CONNECT_DIR_STRIPE) {

		/*

		 * Send the create request to the MDT where the object

		 * will be located
@@ -1697,6 +1698,9 @@ static int lmv_create(struct obd_export *exp, struct md_op_data *op_data, 
			return PTR_ERR(tgt);



		op_data->op_mds = tgt->ltd_idx;

	} else {

		CDEBUG(D_CONFIG, "Server doesn't support striped dirs\n");

	}



	CDEBUG(D_INODE, "CREATE obj "DFID" -> mds #%x\n",

	       PFID(&op_data->op_fid1), op_data->op_mds);