1 files changed, 104 insertions, 0 deletions
diff --git a/fs/jffs2/debug.h b/fs/jffs2/debug.h
new file mode 100644
index 000000000000..7d14f7b01397
--- /dev/null
+++ b/fs/jffs2/debug.h
@@ -0,0 +1,104 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ * $Id: debug.h,v 1.1 2005/07/17 06:56:20 dedekind Exp $
+ *
+ */
+#ifndef _JFFS2_DEBUG_H_
+#define _JFFS2_DEBUG_H_
+
+#include <linux/config.h>
+
+#ifndef CONFIG_JFFS2_FS_DEBUG
+#define CONFIG_JFFS2_FS_DEBUG 1
+#endif
+
+#if CONFIG_JFFS2_FS_DEBUG > 0
+#define JFFS2_DBG_PARANOIA_CHECKS
+#define D1(x) x
+#else
+#define D1(x)
+#endif
+
+#if CONFIG_JFFS2_FS_DEBUG > 1
+#define D2(x) x
+#else
+#define D2(x)
+#endif
+
+/* Enable JFFS2 sanity checks */
+#define JFFS2_DBG_SANITY_CHECKS
+
+#if CONFIG_JFFS2_FS_DEBUG > 0
+void
+jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c);
+
+void
+jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+
+void
+jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f);
+
+void
+jffs2_dbg_dump_buffer(char *buf, int len, uint32_t offs);
+#endif
+
+#ifdef JFFS2_DBG_PARANOIA_CHECKS
+void
+jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f);
+
+void
+jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
+			      struct jffs2_eraseblock *jeb);
+
+void
+jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
+				  uint32_t ofs, int len);
+#else
+#define jffs2_dbg_fragtree_paranoia_check(f)
+#define jffs2_dbg_acct_paranoia_check(c, jeb)
+#define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
+#endif /* !JFFS2_PARANOIA_CHECKS */
+
+#ifdef JFFS2_DBG_SANITY_CHECKS
+/*
+ * Check the space accounting of the file system and of
+ * the JFFS3 erasable block 'jeb'.
+ */
+static inline void
+jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
+			    struct jffs2_eraseblock *jeb)
+{
+	if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
+			jeb->free_size + jeb->wasted_size +
+			jeb->unchecked_size != c->sector_size)) {
+		printk(KERN_ERR "Eeep. Space accounting for block at 0x%08x is screwed\n", jeb->offset);
+		printk(KERN_ERR "free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked "
+				"%#08x != total %#08x\n", jeb->free_size, jeb->dirty_size, jeb->used_size,
+				jeb->wasted_size, jeb->unchecked_size, c->sector_size);
+		BUG();
+	}
+
+	if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
+				+ c->wasted_size + c->unchecked_size != c->flash_size)) {
+		printk(KERN_ERR "Eeep. Space accounting superblock info is screwed\n");
+		printk(KERN_ERR "free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + "
+				"wasted %#08x + unchecked %#08x != total %#08x\n",
+				c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
+				c->wasted_size, c->unchecked_size, c->flash_size);
+		BUG();
+	}
+}
+#else
+static inline void
+jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
+			    struct jffs2_eraseblock *jeb);
+#endif /* !JFFS2_DBG_SANITY_CHECKS */
+
+#endif /* _JFFS2_DEBUG_H_ */