LibrbdWriteback: use a tid_t for tids

An int could be much smaller, leading to overflow and bad behavior.

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/librbd/LibrbdWriteback.h b/src/librbd/LibrbdWriteback.h
index 43a563bbc5f..6466a23ce98 100644
--- a/src/librbd/LibrbdWriteback.h
+++ b/src/librbd/LibrbdWriteback.h
@@ -36,7 +36,7 @@ namespace librbd {
 			__u32 trunc_seq, Context *oncommit);
 
   private:
-    int m_tid;
+    tid_t m_tid;
     Mutex& m_lock;
     librbd::ImageCtx *m_ictx;
   };