UBIFS: increment commit number earlier

Increment the commit number at the beginnig of the commit, instead
of doing this after the commit. This is needed for further
optimizations.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
index 3b516316c9b3..0a6aa2cc78f0 100644
--- a/fs/ubifs/commit.c
+++ b/fs/ubifs/commit.c
@@ -74,6 +74,7 @@ static int do_commit(struct ubifs_info *c)
                         goto out_up;
         }
 
+        c->cmt_no += 1;
         err = ubifs_gc_start_commit(c);
         if (err)
                 goto out_up;
@@ -115,7 +116,7 @@ static int do_commit(struct ubifs_info *c)
                 goto out;
 
         mutex_lock(&c->mst_mutex);
-        c->mst_node->cmt_no      = cpu_to_le64(++c->cmt_no);
+        c->mst_node->cmt_no      = cpu_to_le64(c->cmt_no);
         c->mst_node->log_lnum    = cpu_to_le32(new_ltail_lnum);
         c->mst_node->root_lnum   = cpu_to_le32(zroot.lnum);
         c->mst_node->root_offs   = cpu_to_le32(zroot.offs);