os/bluestore rm unused variable in aio_read()

Signed-off-by: tangwenjun <tang.wenjun3@zte.com.cn>

diff --git a/src/os/bluestore/NVMEDevice.cc b/src/os/bluestore/NVMEDevice.cc
index 13011580d05dc940299d92d2911b6fb812bd38ba..9c971094a4cd77991a73e3c80d9fb852bcc35504 100644 (file)
--- a/src/os/bluestore/NVMEDevice.cc
+++ b/src/os/bluestore/NVMEDevice.cc
@@ -959,7 +959,6 @@ int NVMEDevice::aio_read(
 
   bufferptr p = buffer::create_page_aligned(len);
   pbl->append(p);
-  int r = 0;
   t->ctx = ioc;
   char *buf = p.c_str();
   t->fill_cb = [buf, t]() {