cifs: update comments - [s/GlobalSMBSesLock/cifs_file_list_lock/g]

GlobalSMBSesLock is now cifs_file_list_lock. Update comments to reflect this.

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index ad47820..d7c212a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2291,7 +2291,7 @@
 	/*
 	 * We might have kicked in before is_valid_oplock_break()
 	 * finished grabbing reference for us.  Make sure it's done by
-	 * waiting for GlobalSMSSeslock.
+	 * waiting for cifs_file_list_lock.
 	 */
 	spin_lock(&cifs_file_list_lock);
 	spin_unlock(&cifs_file_list_lock);