migration/multifd: Change multifd_pages_init argument

The 'size' argument is actually the number of pages that fit in a
multifd packet. Change it to uint32_t and rename.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240104142144.9680-4-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
diff --git a/migration/multifd.c b/migration/multifd.c
index 2dbc3ba..25cbc6d 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -236,12 +236,12 @@
     return msg.id;
 }
 
-static MultiFDPages_t *multifd_pages_init(size_t size)
+static MultiFDPages_t *multifd_pages_init(uint32_t n)
 {
     MultiFDPages_t *pages = g_new0(MultiFDPages_t, 1);
 
-    pages->allocated = size;
-    pages->offset = g_new0(ram_addr_t, size);
+    pages->allocated = n;
+    pages->offset = g_new0(ram_addr_t, n);
 
     return pages;
 }