UBIFS: improve journal head debugging prints

Convert the journal head integer into the head name when printing
debugging information.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 17 insertions, 2 deletions

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 8183ee0d4f9d..96900049bcd6 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -210,6 +210,20 @@ const char *dbg_cstate(int cmt_state)
         }
 }
 
+const char *dbg_jhead(int jhead)
+{
+        switch (jhead) {
+        case GCHD:
+                return "0 (GC)";
+        case BASEHD:
+                return "1 (base)";
+        case DATAHD:
+                return "2 (data)";
+        default:
+                return "unknown journal head";
+        }
+}
+
 static void dump_ch(const struct ubifs_ch *ch)
 {
         printk(KERN_DEBUG "\tmagic          %#x\n", le32_to_cpu(ch->magic));
@@ -623,8 +637,9 @@ void dbg_dump_budg(struct ubifs_info *c)
         /* If we are in R/O mode, journal heads do not exist */
         if (c->jheads)
                 for (i = 0; i < c->jhead_cnt; i++)
-                        printk(KERN_DEBUG "\tjhead %d\t LEB %d\n",
-                               c->jheads[i].wbuf.jhead, c->jheads[i].wbuf.lnum);
+                        printk(KERN_DEBUG "\tjhead %s\t LEB %d\n",
+                               dbg_jhead(c->jheads[i].wbuf.jhead),
+                               c->jheads[i].wbuf.lnum);
         for (rb = rb_first(&c->buds); rb; rb = rb_next(rb)) {
                 bud = rb_entry(rb, struct ubifs_bud, rb);
                 printk(KERN_DEBUG "\tbud LEB %d\n", bud->lnum);