C++ (Cpp) cfs_cpt_weight Examples

Example #1

File: module.c Project: Chong-Li/cse522

static int
lnet_selftest_init(void)
{
	int nscheds;
	int rc;
	int i;

	rc = cfs_wi_sched_create("lst_s", lnet_cpt_table(), CFS_CPT_ANY,
				 1, &lst_sched_serial);
	if (rc != 0) {
		CERROR("Failed to create serial WI scheduler for LST\n");
		return rc;
	}
	lst_init_step = LST_INIT_WI_SERIAL;

	nscheds = cfs_cpt_number(lnet_cpt_table());
	LIBCFS_ALLOC(lst_sched_test, sizeof(lst_sched_test[0]) * nscheds);
	if (lst_sched_test == NULL)
		goto error;

	lst_init_step = LST_INIT_WI_TEST;
	for (i = 0; i < nscheds; i++) {
		int nthrs = cfs_cpt_weight(lnet_cpt_table(), i);

		/* reserve at least one CPU for LND */
		nthrs = max(nthrs - 1, 1);
		rc = cfs_wi_sched_create("lst_t", lnet_cpt_table(), i,
					 nthrs, &lst_sched_test[i]);
		if (rc != 0) {
			CERROR("Failed to create CPT affinity WI scheduler %d for LST\n",
			       i);
			goto error;
		}
	}

	rc = srpc_startup();
	if (rc != 0) {
		CERROR("LST can't startup rpc\n");
		goto error;
	}
	lst_init_step = LST_INIT_RPC;

	rc = sfw_startup();
	if (rc != 0) {
		CERROR("LST can't startup framework\n");
		goto error;
	}
	lst_init_step = LST_INIT_FW;

	rc = lstcon_console_init();
	if (rc != 0) {
		CERROR("LST can't startup console\n");
		goto error;
	}
	lst_init_step = LST_INIT_CONSOLE;
	return 0;
error:
	lnet_selftest_fini();
	return rc;
}

Example #2

File: module.c Project: walgenbach/lustre-release

static int init_libcfs_module(void)
{
	int rc;

	libcfs_arch_init();
	libcfs_init_nidstrings();
	init_rwsem(&cfs_tracefile_sem);
	mutex_init(&cfs_trace_thread_mutex);
	init_rwsem(&ioctl_list_sem);
	CFS_INIT_LIST_HEAD(&ioctl_list);
	init_waitqueue_head(&cfs_race_waitq);

	rc = libcfs_debug_init(5 * 1024 * 1024);
	if (rc < 0) {
		printk(KERN_ERR "LustreError: libcfs_debug_init: %d\n", rc);
		return (rc);
	}

	rc = cfs_cpu_init();
	if (rc != 0)
		goto cleanup_debug;

#if LWT_SUPPORT
	rc = lwt_init();
	if (rc != 0) {
		CERROR("lwt_init: error %d\n", rc);
		goto cleanup_debug;
	}
#endif
	rc = misc_register(&libcfs_dev);
	if (rc) {
		CERROR("misc_register: error %d\n", rc);
		goto cleanup_lwt;
	}

	rc = cfs_wi_startup();
	if (rc) {
		CERROR("initialize workitem: error %d\n", rc);
		goto cleanup_deregister;
	}

	/* max to 4 threads, should be enough for rehash */
	rc = min(cfs_cpt_weight(cfs_cpt_table, CFS_CPT_ANY), 4);
	rc = cfs_wi_sched_create("cfs_rh", cfs_cpt_table, CFS_CPT_ANY,
				 rc, &cfs_sched_rehash);
	if (rc != 0) {
		CERROR("Startup workitem scheduler: error: %d\n", rc);
		goto cleanup_deregister;
	}

	rc = cfs_crypto_register();
	if (rc) {
		CERROR("cfs_crypto_regster: error %d\n", rc);
		goto cleanup_wi;
	}


	rc = insert_proc();
	if (rc) {
		CERROR("insert_proc: error %d\n", rc);
		goto cleanup_crypto;
	}

	CDEBUG (D_OTHER, "portals setup OK\n");
	return 0;
 cleanup_crypto:
	cfs_crypto_unregister();
 cleanup_wi:
	cfs_wi_shutdown();
 cleanup_deregister:
	misc_deregister(&libcfs_dev);
 cleanup_lwt:
#if LWT_SUPPORT
	lwt_fini();
#endif
 cleanup_debug:
	libcfs_debug_cleanup();
	return rc;
}