[sheepdog] [PATCH v2] sheep/recovery: fix floating point error

[Ruoyu]

Once the recovery count is less than 100, sheep process will crash
because of devided by zero.

The solution is round up the recovery count first to make sure
the result is not zero.

Cc: Saeki Masaki <saeki.masaki at po.ntts.co.jp>
Signed-off-by: Ruoyu <liangry at ucweb.com>
---
 sheep/recovery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sheep/recovery.c b/sheep/recovery.c
index 8d87f4c..4648966 100644
--- a/sheep/recovery.c
+++ b/sheep/recovery.c
@@ -901,7 +901,7 @@ static void recover_object_main(struct work *work)
 
 	wakeup_requests_on_oid(row->oid);
 
-	if (!(rinfo->done % (rinfo->count/100)))
+	if (!(rinfo->done % DIV_ROUND_UP(rinfo->count, 100)))
 		sd_info("object recovery progress %3.0lf%% ",
 			(double)rinfo->done / rinfo->count * 100);
 	sd_debug("object %"PRIx64" is recovered (%"PRIu64"/%"PRIu64")",
-- 
1.8.3.2