Thread (3 messages) 3 messages, 3 authors, 2023-02-01

Re: [PATCH v7] module: replace module_layout with module_memory

From: Peter Zijlstra <peterz@infradead.org>
Date: 2023-02-01 21:24:22
Also in: lkml

On Wed, Feb 01, 2023 at 10:44:22AM -0800, Song Liu wrote:
 static ssize_t show_datasize(struct module_attribute *mattr,
 			     struct module_kobject *mk, char *buffer)
 {
-	return sprintf(buffer, "%u\n", mk->mod->data_layout.size);
+	unsigned int size = 0;
+
+	for_class_mod_mem_type(type, core) {
+		if (type == MOD_TEXT)
+			continue;
isn't this the same as:

	for_class_mod_mem_type(type, core_data)

?
+		size += mk->mod->mem[type].size;
+	}
+	return sprintf(buffer, "%u\n", size);
 }
-	lockdep_free_key_range(mod->data_layout.base, mod->data_layout.size);
+	for_class_mod_mem_type(type, core) {
+		lockdep_free_key_range(mod->mem[type].base,
+				       mod->mem[type].size);
+	}
Why the core_data to core change? Specifically the difference seems to
be you now include text. Now, we shouldn't be having lockdep keys in
text, so it's harmless, still a bit weird.


Anyway, looks real good to me otherwise. Thanks!
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