restorer: Remove unused heap

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

cr-restore.c

@@ -2522,9 +2522,8 @@ static int sigreturn_restore(pid_t pid, CoreEntry *core)
 		if (thread_args[i].pid != pid)
 			core_entry__free_unpacked(tcore, NULL);
 
-		pr_info("Thread %4d stack %8p heap %8p rt_sigframe %8p\n",
+		pr_info("Thread %4d stack %8p rt_sigframe %8p\n",
 				i, thread_args[i].mem_zone.stack,
-				thread_args[i].mem_zone.heap,
 				thread_args[i].mem_zone.rt_sigframe);
 
 	}

include/restorer.h

@@ -42,7 +42,6 @@ typedef long (*thread_restore_fcall_t) (struct thread_restore_args *args);
 /* sigframe should be aligned on 64 byte for x86 and 8 bytes for arm */
 #define RESTORE_STACK_SIGFRAME		ALIGN(sizeof(struct rt_sigframe) + SIGFRAME_OFFSET, 64)
 #define RESTORE_STACK_SIZE		(KILO(32))
-#define RESTORE_HEAP_SIZE		(KILO(16))
 
 #define RESTORE_ALIGN_STACK(start, size)	\
 	(ALIGN((start) + (size) - sizeof(long), sizeof(long)))
@@ -51,12 +50,8 @@ struct restore_mem_zone {
 	u8				redzone[RESTORE_STACK_REDZONE];
 	u8				stack[RESTORE_STACK_SIZE];
 	u8				rt_sigframe[RESTORE_STACK_SIGFRAME];
-	u8				heap[RESTORE_HEAP_SIZE];
 } __aligned(sizeof(long));
 
-#define first_on_heap(ptr, heap)	((typeof(ptr))heap)
-#define next_on_heap(ptr, prev)		((typeof(ptr))((long)(prev) + sizeof(*(prev))))
-
 struct rst_sched_param {
 	int policy;
 	int nice;

pie/restorer.c

@@ -791,14 +791,14 @@ long __export_restore_task(struct task_restore_core_args *args)
 	 *
 	 * | <-- low addresses                                          high addresses --> |
 	 * +-------------------------------------------------------+-----------------------+
-	 * | this proc body | own stack | heap | rt_sigframe space | thread restore zone   |
+	 * | this proc body | own stack | rt_sigframe space | thread restore zone   |
 	 * +-------------------------------------------------------+-----------------------+
 	 *
 	 * where each thread restore zone is the following
 	 *
 	 * | <-- low addresses                                     high addresses --> |
 	 * +--------------------------------------------------------------------------+
-	 * | thread restore proc | thread1 stack | thread1 heap | thread1 rt_sigframe |
+	 * | thread restore proc | thread1 stack | thread1 rt_sigframe |
 	 * +--------------------------------------------------------------------------+
 	 */