UBIFS: fix bogus assertion

Empty journal head LEBs are accounted as taken empty as well, so
the GC LEB does not have to be the only taken empty LEB when
nounting/remounting.

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

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 1182b66..03cd9ac 100644 (file)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1318,11 +1318,15 @@ static int mount_ubifs(struct ubifs_info *c)
                else {
                        c->need_recovery = 0;
                        ubifs_msg("recovery completed");
-                       /* GC LEB has to be empty and taken at this point */
-                       ubifs_assert(c->lst.taken_empty_lebs == 1);
+                       /*
+                        * GC LEB has to be empty and taken at this point. But
+                        * the journal head LEBs may also be accounted as
+                        * "empty taken" if they are empty.
+                        */
+                       ubifs_assert(c->lst.taken_empty_lebs > 0);
                }
        } else
-               ubifs_assert(c->lst.taken_empty_lebs == 1);
+               ubifs_assert(c->lst.taken_empty_lebs > 0);
 
        err = dbg_check_filesystem(c);
        if (err)
@@ -1775,7 +1779,7 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
                c->bu.buf = NULL;
        }
 
-       ubifs_assert(c->lst.taken_empty_lebs == 1);
+       ubifs_assert(c->lst.taken_empty_lebs > 0);
        return 0;
 }