Kernel: Make AsyncDeviceRequest::name() return StringView

Kernel/Devices/AsyncDeviceRequest.h

@@ -54,7 +54,7 @@ public:
 
     virtual ~AsyncDeviceRequest();
 
-    virtual const char* name() const = 0;
+    virtual StringView name() const = 0;
     virtual void start() = 0;
 
     void add_sub_request(NonnullRefPtr<AsyncDeviceRequest>);

Kernel/Devices/BlockDevice.h

@@ -29,13 +29,13 @@ public:
     size_t buffer_size() const { return m_buffer_size; }
 
     virtual void start() override;
-    virtual const char* name() const override
+    virtual StringView name() const override
     {
         switch (m_request_type) {
         case Read:
-            return "BlockDeviceRequest (read)";
+            return "BlockDeviceRequest (read)"sv;
         case Write:
-            return "BlockDeviceRequest (write)";
+            return "BlockDeviceRequest (write)"sv;
         default:
             VERIFY_NOT_REACHED();
         }

Kernel/Thread.h

@@ -527,7 +527,7 @@ public:
 
     class QueueBlocker : public Blocker {
     public:
-        explicit QueueBlocker(WaitQueue&, const char* block_reason = nullptr);
+        explicit QueueBlocker(WaitQueue&, StringView block_reason = {});
         virtual ~QueueBlocker();
 
         virtual Type blocker_type() const override { return Type::Queue; }

Kernel/ThreadBlockers.cpp

@@ -118,7 +118,7 @@ bool Thread::JoinBlocker::unblock(void* value, bool from_add_blocker)
     return true;
 }
 
-Thread::QueueBlocker::QueueBlocker(WaitQueue& wait_queue, const char* block_reason)
+Thread::QueueBlocker::QueueBlocker(WaitQueue& wait_queue, StringView block_reason)
     : m_block_reason(block_reason)
 {
     if (!set_block_condition(wait_queue, Thread::current()))