From 5a123e35911db0e706f1376638fb67d10c94d464 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Fri, 22 Aug 2008 09:41:10 +0000
Subject: [PATCH] * Added a post boot device module init function that unloads
 all unused modules,   as they aren't unloaded when there is no boot device
 yet.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27136 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/private/kernel/kmodule.h |  1 +
 src/system/kernel/main.cpp       |  2 ++
 src/system/kernel/module.cpp     | 22 ++++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/headers/private/kernel/kmodule.h b/headers/private/kernel/kmodule.h
index 14736fdb53..4b02692767 100644
--- a/headers/private/kernel/kmodule.h
+++ b/headers/private/kernel/kmodule.h
@@ -31,6 +31,7 @@ extern status_t load_module(const char *path, module_info ***_modules);
 
 extern status_t module_init(struct kernel_args *args);
 extern status_t module_init_post_threads(void);
+extern status_t module_init_post_boot_device(void);
 
 #ifdef __cplusplus
 }
diff --git a/src/system/kernel/main.cpp b/src/system/kernel/main.cpp
index 153bb6d41d..353a6a8656 100644
--- a/src/system/kernel/main.cpp
+++ b/src/system/kernel/main.cpp
@@ -294,6 +294,8 @@ main2(void *unused)
 	TRACE("device_manager_init_post_modules\n");
 	device_manager_init_post_modules(&sKernelArgs);
 
+	module_init_post_boot_device();
+
 	boot_splash_set_stage(BOOT_SPLASH_STAGE_7_RUN_BOOT_SCRIPT);
 	boot_splash_uninit();
 		// NOTE: We could introduce a syscall to draw more icons indicating
diff --git a/src/system/kernel/module.cpp b/src/system/kernel/module.cpp
index 3f34f0dbdd..7faa9c5c6d 100644
--- a/src/system/kernel/module.cpp
+++ b/src/system/kernel/module.cpp
@@ -1836,6 +1836,28 @@ module_init_post_threads(void)
 }
 
 
+status_t
+module_init_post_boot_device(void)
+{
+	RecursiveLocker locker(sModulesLock);
+
+	hash_iterator iterator;
+	hash_open(sModuleImagesHash, &iterator);
+
+	while (true) {
+		struct module_image* image
+			= (struct module_image*)hash_next(sModuleImagesHash, &iterator);
+		if (image == NULL)
+			break;
+
+		if (image->ref_count == 0 && !image->keep_loaded)
+			unload_module_image(image, NULL);
+	}
+
+	return B_OK;
+}
+
+
 //	#pragma mark - Exported Kernel API (public part)