md/raid5-cache: delete meaningless code

sector_t is unsigned long, it's never < 0

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Shaohua Li <shli@fb.com>

diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 0e8ed2c327b07fd849c1720d7b272dd860b949b9..e0d6dd1835d03f031b2dc41e472113997dcee20f 100644 (file)
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -1393,8 +1393,6 @@ static void r5l_do_reclaim(struct r5l_log *log)
        next_checkpoint = r5c_calculate_new_cp(conf);
        spin_unlock_irq(&log->io_list_lock);
 
-       BUG_ON(reclaimable < 0);
-
        if (reclaimable == 0 || !write_super)
                return;