linux-kernel - [PATCH 27/35] ocfs2/dlm: Hold off sending lockres drop ref message while lockres is migrating

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Message-Id: <1230228290-22803-28-git-send-email-mfasheh@suse.com>
Date:	Thu, 25 Dec 2008 10:04:42 -0800
From:	Mark Fasheh <mfasheh@...e.com>
To:	linux-kernel@...r.kernel.org
Cc:	ocfs2-devel@....oracle.com, Joel Becker <joel.becker@...cle.com>,
	Sunil Mushran <sunil.mushran@...cle.com>,
	Mark Fasheh <mfasheh@...e.com>
Subject: [PATCH 27/35] ocfs2/dlm: Hold off sending lockres drop ref message while lockres is migrating

From: Sunil Mushran <sunil.mushran@...cle.com>

During lockres purge, o2dlm sends a drop reference message to the lockres
master. This patch delays the message if the lockres is being migrated.

Fixes oss bugzilla#1012
http://oss.oracle.com/bugzilla/show_bug.cgi?id=1012

Signed-off-by: Sunil Mushran <sunil.mushran@...cle.com>
Signed-off-by: Mark Fasheh <mfasheh@...e.com>
---
 fs/ocfs2/dlm/dlmthread.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 4060bb3..d129520 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -181,7 +181,8 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm,
 
 		spin_lock(&res->spinlock);
 		/* This ensures that clear refmap is sent after the set */
-		__dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG);
+		__dlm_wait_on_lockres_flags(res, (DLM_LOCK_RES_SETREF_INPROG |
+						  DLM_LOCK_RES_MIGRATING));
 		spin_unlock(&res->spinlock);
 
 		/* clear our bit from the master's refmap, ignore errors */
-- 
1.5.6

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