int
cfs_wi_startup (void)
{
int i;
int n;
int rc;
cfs_wi_data.wi_nthreads = 0;
cfs_wi_data.wi_nsched = CFS_WI_NSCHED;
LIBCFS_ALLOC(cfs_wi_data.wi_scheds,
cfs_wi_data.wi_nsched * sizeof(cfs_wi_sched_t));
if (cfs_wi_data.wi_scheds == NULL)
return -ENOMEM;
cfs_spin_lock_init(&cfs_wi_data.wi_glock);
for (i = 0; i < cfs_wi_data.wi_nsched; i++)
cfs_wi_sched_init(&cfs_wi_data.wi_scheds[i]);
#ifdef __KERNEL__
n = cfs_num_online_cpus();
for (i = 0; i <= n; i++) {
rc = cfs_wi_start_thread(cfs_wi_scheduler,
(void *)(long_ptr_t)(i == n ? -1 : i));
if (rc != 0) {
CERROR ("Can't spawn workitem scheduler: %d\n", rc);
cfs_wi_shutdown();
return rc;
}
}
#else
n = rc = 0;
#endif
return 0;
}
static void exit_libcfs_module(void)
{
int rc;
remove_proc();
CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
cfs_atomic_read(&libcfs_kmemory));
cfs_wi_shutdown();
rc = cfs_psdev_deregister(&libcfs_dev);
if (rc)
CERROR("misc_deregister error %d\n", rc);
#if LWT_SUPPORT
lwt_fini();
#endif
if (cfs_atomic_read(&libcfs_kmemory) != 0)
CERROR("Portals memory leaked: %d bytes\n",
cfs_atomic_read(&libcfs_kmemory));
rc = libcfs_debug_cleanup();
if (rc)
printk(CFS_KERN_ERR "LustreError: libcfs_debug_cleanup: %d\n",
rc);
cfs_fini_rwsem(&ioctl_list_sem);
cfs_fini_rwsem(&cfs_tracefile_sem);
libcfs_arch_cleanup();
}
static int init_libcfs_module(void)
{
int rc;
libcfs_arch_init();
libcfs_init_nidstrings();
cfs_init_rwsem(&cfs_tracefile_sem);
cfs_init_mutex(&cfs_trace_thread_sem);
cfs_init_rwsem(&ioctl_list_sem);
CFS_INIT_LIST_HEAD(&ioctl_list);
rc = libcfs_debug_init(5 * 1024 * 1024);
if (rc < 0) {
printk(CFS_KERN_ERR "LustreError: libcfs_debug_init: %d\n", rc);
return (rc);
}
#if LWT_SUPPORT
rc = lwt_init();
if (rc != 0) {
CERROR("lwt_init: error %d\n", rc);
goto cleanup_debug;
}
#endif
rc = cfs_psdev_register(&libcfs_dev);
if (rc) {
CERROR("misc_register: error %d\n", rc);
goto cleanup_lwt;
}
rc = cfs_wi_startup();
if (rc) {
CERROR("startup workitem: error %d\n", rc);
goto cleanup_deregister;
}
rc = insert_proc();
if (rc) {
CERROR("insert_proc: error %d\n", rc);
goto cleanup_wi;
}
CDEBUG (D_OTHER, "portals setup OK\n");
return (0);
cleanup_wi:
cfs_wi_shutdown();
cleanup_deregister:
cfs_psdev_deregister(&libcfs_dev);
cleanup_lwt:
#if LWT_SUPPORT
lwt_fini();
cleanup_debug:
#endif
libcfs_debug_cleanup();
return rc;
}
static void exit_libcfs_module(void)
{
int rc;
remove_proc();
CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
atomic_read(&libcfs_kmemory));
if (cfs_sched_rehash != NULL) {
cfs_wi_sched_destroy(cfs_sched_rehash);
cfs_sched_rehash = NULL;
}
cfs_crypto_unregister();
cfs_wi_shutdown();
rc = misc_deregister(&libcfs_dev);
if (rc)
CERROR("misc_deregister error %d\n", rc);
#if LWT_SUPPORT
lwt_fini();
#endif
cfs_cpu_fini();
if (atomic_read(&libcfs_kmemory) != 0)
CERROR("Portals memory leaked: %d bytes\n",
atomic_read(&libcfs_kmemory));
rc = libcfs_debug_cleanup();
if (rc)
printk(KERN_ERR "LustreError: libcfs_debug_cleanup: %d\n",
rc);
fini_rwsem(&ioctl_list_sem);
fini_rwsem(&cfs_tracefile_sem);
libcfs_arch_cleanup();
}
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;
}
