From: wang di <di.wang@intel.com>
Date: Wed, 14 Jan 2015 13:25:31 +0000 (-0800)
Subject: LU-5357 lod: hold thandle during lod_trans_stop
X-Git-Tag: 2.6.94~24
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=c236efcd5ed186c5813cc6b11d0b1b12d8ec0734

LU-5357 lod: hold thandle during lod_trans_stop

Hold thandle during lod_trans_stop, to avoid the thandle
being freed in local transaction stop.

Signed-off-by: wang di <di.wang@intel.com>
Change-Id: I2448d725e35b119a61bbfb2e9567446d203bec16
Reviewed-on: http://review.whamcloud.com/13420
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lustre/lod/lod_dev.c b/lustre/lod/lod_dev.c
index 8606df9..e9cf6ce 100644
--- a/lustre/lod/lod_dev.c
+++ b/lustre/lod/lod_dev.c
@@ -591,9 +591,12 @@ static int lod_trans_stop(const struct lu_env *env, struct dt_device *dt,
 	int				rc;
 	ENTRY;
 
+	thandle_get(th);
 	rc = dt_trans_stop(env, th->th_dev, th);
-	if (likely(tu == NULL))
+	if (likely(tu == NULL)) {
+		thandle_put(th);
 		RETURN(rc);
+	}
 
 	list_for_each_entry_safe(update, tmp,
 				 &tu->tu_remote_update_list,
@@ -603,6 +606,7 @@ static int lod_trans_stop(const struct lu_env *env, struct dt_device *dt,
 		if (unlikely(rc2 != 0 && rc == 0))
 			rc = rc2;
 	}
+	thandle_put(th);
 
 	RETURN(rc);
 }