UBIFS: introduce a helper to dump scanning info

This commit adds 'dbg_dump_sleb()' helper function to dump scanning
information.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index eef109a..b09ba2d 100644 (file)
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -870,6 +870,22 @@ void dbg_dump_lpt_info(struct ubifs_info *c)
        spin_unlock(&dbg_lock);
 }
 
+void dbg_dump_sleb(const struct ubifs_info *c,
+                  const struct ubifs_scan_leb *sleb, int offs)
+{
+       struct ubifs_scan_node *snod;
+
+       printk(KERN_DEBUG "(pid %d) start dumping scanned data from LEB %d:%d\n",
+              current->pid, sleb->lnum, offs);
+
+       list_for_each_entry(snod, &sleb->nodes, list) {
+               cond_resched();
+               printk(KERN_DEBUG "Dumping node at LEB %d:%d len %d\n", sleb->lnum,
+                      snod->offs, snod->len);
+               dbg_dump_node(c, snod->node);
+       }
+}
+
 void dbg_dump_leb(const struct ubifs_info *c, int lnum)
 {
        struct ubifs_scan_leb *sleb;

diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index 45174b5..2bf8421 100644 (file)
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -269,6 +269,8 @@ void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp);
 void dbg_dump_lprops(struct ubifs_info *c);
 void dbg_dump_lpt_info(struct ubifs_info *c);
 void dbg_dump_leb(const struct ubifs_info *c, int lnum);
+void dbg_dump_sleb(const struct ubifs_info *c,
+                  const struct ubifs_scan_leb *sleb, int offs);
 void dbg_dump_znode(const struct ubifs_info *c,
                    const struct ubifs_znode *znode);
 void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat);
@@ -387,6 +389,9 @@ static inline void dbg_dump_lpt_info(struct ubifs_info *c)        { return; }
 static inline void dbg_dump_leb(const struct ubifs_info *c,
                                int lnum)                         { return; }
 static inline void
+dbg_dump_sleb(const struct ubifs_info *c,
+             const struct ubifs_scan_leb *sleb, int offs)        { return; }
+static inline void
 dbg_dump_znode(const struct ubifs_info *c,
               const struct ubifs_znode *znode)                   { return; }
 static inline void dbg_dump_heap(struct ubifs_info *c,