iothread: rename PollParamInfo to IOThreadParamInfo

Commit 1793ad0247 ("iothread: add aio-max-batch parameter") added
a new parameter (aio-max-batch) to IOThread and used PollParamInfo
structure to handle it.

Since it is not a parameter of the polling mechanism, we rename the
structure to a more generic IOThreadParamInfo.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20210727145936.147032-2-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

iothread.c

@@ -215,18 +215,18 @@ static void iothread_complete(UserCreatable *obj, Error **errp)
 typedef struct {
     const char *name;
     ptrdiff_t offset; /* field's byte offset in IOThread struct */
-} PollParamInfo;
+} IOThreadParamInfo;
 
-static PollParamInfo poll_max_ns_info = {
+static IOThreadParamInfo poll_max_ns_info = {
     "poll-max-ns", offsetof(IOThread, poll_max_ns),
 };
-static PollParamInfo poll_grow_info = {
+static IOThreadParamInfo poll_grow_info = {
     "poll-grow", offsetof(IOThread, poll_grow),
 };
-static PollParamInfo poll_shrink_info = {
+static IOThreadParamInfo poll_shrink_info = {
     "poll-shrink", offsetof(IOThread, poll_shrink),
 };
-static PollParamInfo aio_max_batch_info = {
+static IOThreadParamInfo aio_max_batch_info = {
     "aio-max-batch", offsetof(IOThread, aio_max_batch),
 };
 
@@ -234,7 +234,7 @@ static void iothread_get_param(Object *obj, Visitor *v,
         const char *name, void *opaque, Error **errp)
 {
     IOThread *iothread = IOTHREAD(obj);
-    PollParamInfo *info = opaque;
+    IOThreadParamInfo *info = opaque;
     int64_t *field = (void *)iothread + info->offset;
 
     visit_type_int64(v, name, field, errp);
@@ -244,7 +244,7 @@ static bool iothread_set_param(Object *obj, Visitor *v,
         const char *name, void *opaque, Error **errp)
 {
     IOThread *iothread = IOTHREAD(obj);
-    PollParamInfo *info = opaque;
+    IOThreadParamInfo *info = opaque;
     int64_t *field = (void *)iothread + info->offset;
     int64_t value;