UBIFS: re-calculate min_idx_size after the commit

When we commit, but before we try to write anything to the flash
media, @c->min_idx_size is inaccurate, because we do not re-calculate
it after the commit. Do not forget to do this.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 3c0af452887b..fde8d127c768 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -802,8 +802,10 @@ int ubifs_tnc_start_commit(struct ubifs_info *c, struct ubifs_zbranch *zroot)
          * budgeting subsystem to assume the index is already committed,
          * even though it is not.
          */
+        ubifs_assert(c->min_idx_lebs == ubifs_calc_min_idx_lebs(c));
         c->old_idx_sz = c->calc_idx_sz;
         c->budg_uncommitted_idx = 0;
+        c->min_idx_lebs = ubifs_calc_min_idx_lebs(c);
         spin_unlock(&c->space_lock);
         mutex_unlock(&c->tnc_mutex);