--- l/fs/ocfs2/suballoc.c
+++ k/fs/ocfs2/suballoc.c
@@ -962,8 +962,10 @@ int ocfs2_reserve_new_metadata_blocks(st
 {
 	int status;
 	int slot = ocfs2_get_meta_steal_slot(osb);
+	unsigned int pff = memalloc_nofs_save();
 
 	*ac = kzalloc(sizeof(struct ocfs2_alloc_context), GFP_KERNEL);
+	memalloc_nofs_restore(pff);
 	if (!(*ac)) {
 		status = -ENOMEM;
 		mlog_errno(status);