From: Don Zickus <dzickus@redhat.com>
Date: Tue, 14 Apr 2009 15:23:31 -0400
Subject: [openib] core: disable lock dep annotation
Message-id: 1239737023-31222-5-git-send-email-dledford@redhat.com
O-Subject: [Patch RHEL5.4 04/16] [infiniband/core] Update core code to OFED 1.4.1-rc3
Bugzilla: 476301

Lock dep doesn't seem to be happy with per cpu annotations.  It doesn't harm
anything to turn it off for now.  Only really affects -debug kernels anyway.

diff --git a/drivers/infiniband/core/namespace.c b/drivers/infiniband/core/namespace.c
index a33f9e9..281502d 100644
--- a/drivers/infiniband/core/namespace.c
+++ b/drivers/infiniband/core/namespace.c
@@ -21,7 +21,8 @@ int __init init_mnt_writers(void)
 	for_each_possible_cpu(cpu) {
 		struct mnt_writer *writer = &per_cpu(mnt_writers, cpu);
 		spin_lock_init(&writer->lock);
-		lockdep_set_class(&writer->lock, &writer->lock_class);
+		/* causes issues on RHEL-5 -debug kernels */
+		//lockdep_set_class(&writer->lock, &writer->lock_class);
 		writer->count = 0;
 	}
 	return 0;