backing-dev: Kill set but not used var in bdi_debug_stats_show()

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index befc87531e4..f032e6e1e09 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -63,10 +63,10 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v)
         unsigned long background_thresh;
         unsigned long dirty_thresh;
         unsigned long bdi_thresh;
-        unsigned long nr_dirty, nr_io, nr_more_io, nr_wb;
+        unsigned long nr_dirty, nr_io, nr_more_io;
         struct inode *inode;
 
-        nr_wb = nr_dirty = nr_io = nr_more_io = 0;
+        nr_dirty = nr_io = nr_more_io = 0;
         spin_lock(&inode_wb_list_lock);
         list_for_each_entry(inode, &wb->b_dirty, i_wb_list)
                 nr_dirty++;