[PATCH] reiserfs: handle cnode allocation failure gracefully
[linux-2.6.git] / fs / reiserfs / journal.c
index 4b15761..68b7b78 100644 (file)
@@ -2757,6 +2757,15 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
        journal->j_cnode_used = 0;
        journal->j_must_wait = 0;
 
+       if (journal->j_cnode_free == 0) {
+               reiserfs_warning(p_s_sb, "journal-2004: Journal cnode memory "
+                                "allocation failed (%ld bytes). Journal is "
+                                "too large for available memory. Usually "
+                                "this is due to a journal that is too large.",
+                                sizeof (struct reiserfs_journal_cnode) * num_cnodes);
+               goto free_and_return;
+       }
+
        init_journal_hash(p_s_sb);
        jl = journal->j_current_jl;
        jl->j_list_bitmap = get_list_bitmap(p_s_sb, jl);