ocfs2: don't use handle for locking in allocation functions

Instead we record our state on the allocation context structure which all
callers already know about and lifetime correctly. This means the
reservation functions don't need a handle passed in any more, and we can
also take it off the alloc context.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/dir.c

@@ -409,13 +409,6 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	mlog(0, "extending dir %llu (i_size = %lld)\n",
 	     (unsigned long long)OCFS2_I(dir)->ip_blkno, dir_i_size);
 
-	handle = ocfs2_alloc_handle(osb);
-	if (handle == NULL) {
-		status = -ENOMEM;
-		mlog_errno(status);
-		goto bail;
-	}
-
 	/* dir->i_size is always block aligned. */
 	spin_lock(&OCFS2_I(dir)->ip_lock);
 	if (dir_i_size == ocfs2_clusters_to_bytes(sb, OCFS2_I(dir)->ip_clusters)) {
@@ -428,8 +421,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 		}
 
 		if (!num_free_extents) {
-			status = ocfs2_reserve_new_metadata(osb, handle,
-							    fe, &meta_ac);
+			status = ocfs2_reserve_new_metadata(osb, fe, &meta_ac);
 			if (status < 0) {
 				if (status != -ENOSPC)
 					mlog_errno(status);
@@ -437,7 +429,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 			}
 		}
 
-		status = ocfs2_reserve_clusters(osb, handle, 1, &data_ac);
+		status = ocfs2_reserve_clusters(osb, 1, &data_ac);
 		if (status < 0) {
 			if (status != -ENOSPC)
 				mlog_errno(status);
@@ -450,7 +442,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 		credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
 	}
 
-	handle = ocfs2_start_trans(osb, handle, credits);
+	handle = ocfs2_start_trans(osb, NULL, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		handle = NULL;