From 3155adb299bfb8bf6b66658073f1641f623de9ef Mon Sep 17 00:00:00 2001
From: "zhaozhao.zz" <276441700@qq.com>
Date: Fri, 10 Jul 2020 13:20:27 +0800
Subject: [PATCH] BITOP: propagate only when it really SET or DEL targetkey
 (#5783)

For example:
    BITOP not targetkey sourcekey

If targetkey and sourcekey doesn't exist, BITOP has no effect,
we do not propagate it, thus can save aof and replica flow.

(cherry picked from commit 1978f996d8b13db112d5d2fdf4a4ce2baf636729)
---
 src/bitops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/bitops.c b/src/bitops.c
index b37bea2bf..4b1a09aa4 100644
--- a/src/bitops.c
+++ b/src/bitops.c
@@ -759,11 +759,12 @@ void bitopCommand(client *c) {
         setKey(c,c->db,targetkey,o);
         notifyKeyspaceEvent(NOTIFY_STRING,"set",targetkey,c->db->id);
         decrRefCount(o);
+        server.dirty++;
     } else if (dbDelete(c->db,targetkey)) {
         signalModifiedKey(c,c->db,targetkey);
         notifyKeyspaceEvent(NOTIFY_GENERIC,"del",targetkey,c->db->id);
+        server.dirty++;
     }
-    server.dirty++;
     addReplyLongLong(c,maxlen); /* Return the output string length in bytes. */
 }