From: Di Wang <di.wang@intel.com>
Date: Thu, 25 Feb 2016 14:15:04 +0000 (-0500)
Subject: LU-7815 mdt: pinger should not evict MDT-MDT export
X-Git-Tag: 2.8.51~57
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=a3e6b142c074df8ef20cbf3a9d9f7687c9ed9a5f

LU-7815 mdt: pinger should not evict MDT-MDT export

MDT-MDT export should not be added obd_chained_timed
list, to avoid being evicted by evict pinger thread.

Signed-off-by: Di Wang <di.wang@intel.com>
Change-Id: I99ae008905b3654a9ddc66ec60c27613f9930592
Reviewed-on: http://review.whamcloud.com/18676
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lustre/mdt/mdt_handler.c b/lustre/mdt/mdt_handler.c
index 9ffd9c7..82d6623 100644
--- a/lustre/mdt/mdt_handler.c
+++ b/lustre/mdt/mdt_handler.c
@@ -5210,6 +5210,13 @@ out:
 		*exp = NULL;
 	} else {
 		*exp = lexp;
+		/* Because we do not want this export to be evicted by pinger,
+		 * let's not add this export to the timed chain list. */
+		if (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS) {
+			spin_lock(&lexp->exp_obd->obd_dev_lock);
+			list_del_init(&lexp->exp_obd_chain_timed);
+			spin_unlock(&lexp->exp_obd->obd_dev_lock);
+		}
 	}
 
 	RETURN(rc);