vm: only align slab headers when offslab is being used

vm/cache.c

@@ -1,5 +1,6 @@
 #include <socks/queue.h>
 #include <socks/compiler.h>
+#include <socks/panic.h>
 #include <socks/vm.h>
 #include <socks/util.h>
 #include <stddef.h>
@@ -67,7 +68,7 @@ void vm_cache_init(struct vm_cache *cache)
 	   get the object buffer pointer. by aligning c_hdr_size to the
 	   requested alignment, we ensure that the object buffer
 	   is aligned too */
-	if (cache->c_hdr_size & (cache->c_align - 1)) {
+	if (cache->c_hdr_size & (cache->c_align - 1) && !(cache->c_flags & VM_CACHE_OFFSLAB)) {
 		cache->c_hdr_size &= ~(cache->c_align - 1);
 		cache->c_hdr_size += cache->c_align;
 	}