os/bluestore/KernelDevice: explicit on ctor

This was lost in the wip-spdk merge.

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/os/bluestore/KernelDevice.h b/src/os/bluestore/KernelDevice.h
index a61f4e9bfbfddcc6730056a5e4ee6bfb4cfdb39c..55526eaaa587fbfa59761a9907d0b1ae17195831 100644 (file)
--- a/src/os/bluestore/KernelDevice.h
+++ b/src/os/bluestore/KernelDevice.h
@@ -42,7 +42,7 @@ class KernelDevice : public BlockDevice {
 
   struct AioCompletionThread : public Thread {
     KernelDevice *bdev;
-    AioCompletionThread(KernelDevice *b) : bdev(b) {}
+    explicit AioCompletionThread(KernelDevice *b) : bdev(b) {}
     void *entry() {
       bdev->_aio_thread();
       return NULL;