[GFS2] Remove unused function from inode.c

The gfs2_glock_nq_m_atime function is unused in so far as its only
ever called with num_gh = 1, and this falls through to the
gfs2_glock_nq_atime function, so we might as well call that directly.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 2f7ef98..8676c39 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -217,7 +217,7 @@
 		}
 		gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh);
 		do_unlock = 1;
-		error = gfs2_glock_nq_m_atime(1, &gh);
+		error = gfs2_glock_nq_atime(&gh);
 		if (unlikely(error))
 			goto out_unlock;
 	}
@@ -282,7 +282,7 @@
 		gfs2_holder_init(ip->i_gl, LM_ST_SHARED,
 				 LM_FLAG_TRY_1CB|GL_ATIME, &gh);
 		do_unlock = 1;
-		ret = gfs2_glock_nq_m_atime(1, &gh);
+		ret = gfs2_glock_nq_atime(&gh);
 		if (ret == GLR_TRYFAILED)
 			goto out_noerror;
 		if (unlikely(ret))
@@ -354,7 +354,7 @@
 
 
 	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_ATIME|LM_FLAG_TRY_1CB, &ip->i_gh);
-	error = gfs2_glock_nq_m_atime(1, &ip->i_gh);
+	error = gfs2_glock_nq_atime(&ip->i_gh);
 	if (unlikely(error)) {
 		if (error == GLR_TRYFAILED)
 			error = AOP_TRUNCATED_PAGE;
@@ -609,7 +609,7 @@
 	 * on this path. All we need change is atime.
 	 */
 	gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, &gh);
-	rv = gfs2_glock_nq_m_atime(1, &gh);
+	rv = gfs2_glock_nq_atime(&gh);
 	if (rv)
 		goto out;