/* device init/fini methods */
static void mds_stop_ptlrpc_service(struct mds_device *m)
{
ENTRY;
if (m->mds_regular_service != NULL) {
ptlrpc_unregister_service(m->mds_regular_service);
m->mds_regular_service = NULL;
}
if (m->mds_readpage_service != NULL) {
ptlrpc_unregister_service(m->mds_readpage_service);
m->mds_readpage_service = NULL;
}
if (m->mds_out_service != NULL) {
ptlrpc_unregister_service(m->mds_out_service);
m->mds_out_service = NULL;
}
if (m->mds_setattr_service != NULL) {
ptlrpc_unregister_service(m->mds_setattr_service);
m->mds_setattr_service = NULL;
}
if (m->mds_mdsc_service != NULL) {
ptlrpc_unregister_service(m->mds_mdsc_service);
m->mds_mdsc_service = NULL;
}
if (m->mds_mdss_service != NULL) {
ptlrpc_unregister_service(m->mds_mdss_service);
m->mds_mdss_service = NULL;
}
if (m->mds_fld_service != NULL) {
ptlrpc_unregister_service(m->mds_fld_service);
m->mds_fld_service = NULL;
}
EXIT;
}
static int mgs_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
{
struct mgs_obd *mgs = &obd->u.mgs;
int rc = 0;
ENTRY;
switch (stage) {
case OBD_CLEANUP_EARLY:
break;
case OBD_CLEANUP_EXPORTS:
ping_evictor_stop();
ptlrpc_unregister_service(mgs->mgs_service);
mgs_cleanup_fsdb_list(obd);
rc = obd_llog_finish(obd, 0);
lproc_mgs_cleanup(obd);
break;
}
RETURN(rc);
}
/* device init/fini methods */
static void mds_stop_ptlrpc_service(struct mds_device *m)
{
ENTRY;
mutex_lock(&m->mds_health_mutex);
if (m->mds_regular_service != NULL) {
ptlrpc_unregister_service(m->mds_regular_service);
m->mds_regular_service = NULL;
}
if (m->mds_readpage_service != NULL) {
ptlrpc_unregister_service(m->mds_readpage_service);
m->mds_readpage_service = NULL;
}
if (m->mds_out_service != NULL) {
ptlrpc_unregister_service(m->mds_out_service);
m->mds_out_service = NULL;
}
if (m->mds_setattr_service != NULL) {
ptlrpc_unregister_service(m->mds_setattr_service);
m->mds_setattr_service = NULL;
}
if (m->mds_mdsc_service != NULL) {
ptlrpc_unregister_service(m->mds_mdsc_service);
m->mds_mdsc_service = NULL;
}
if (m->mds_mdss_service != NULL) {
ptlrpc_unregister_service(m->mds_mdss_service);
m->mds_mdss_service = NULL;
}
if (m->mds_fld_service != NULL) {
ptlrpc_unregister_service(m->mds_fld_service);
m->mds_fld_service = NULL;
}
mutex_unlock(&m->mds_health_mutex);
EXIT;
}
/* Start the MGS obd */
static int mgs_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
struct lprocfs_static_vars lvars;
struct mgs_obd *mgs = &obd->u.mgs;
struct lustre_mount_info *lmi;
struct lustre_sb_info *lsi;
struct vfsmount *mnt;
int rc = 0;
ENTRY;
CDEBUG(D_CONFIG, "Starting MGS\n");
/* Find our disk */
lmi = server_get_mount(obd->obd_name);
if (!lmi)
RETURN(rc = -EINVAL);
mnt = lmi->lmi_mnt;
lsi = s2lsi(lmi->lmi_sb);
obd->obd_fsops = fsfilt_get_ops(MT_STR(lsi->lsi_ldd));
if (IS_ERR(obd->obd_fsops))
GOTO(err_put, rc = PTR_ERR(obd->obd_fsops));
if (lvfs_check_rdonly(lvfs_sbdev(mnt->mnt_sb))) {
CERROR("%s: Underlying device is marked as read-only. "
"Setup failed\n", obd->obd_name);
GOTO(err_ops, rc = -EROFS);
}
obd->u.obt.obt_magic = OBT_MAGIC;
obd->u.obt.obt_instance = 0;
/* namespace for mgs llog */
obd->obd_namespace = ldlm_namespace_new(obd ,"MGS",
LDLM_NAMESPACE_SERVER,
LDLM_NAMESPACE_MODEST,
LDLM_NS_TYPE_MGT);
if (obd->obd_namespace == NULL)
GOTO(err_ops, rc = -ENOMEM);
/* ldlm setup */
ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
"mgs_ldlm_client", &obd->obd_ldlm_client);
rc = mgs_fs_setup(obd, mnt);
if (rc) {
CERROR("%s: MGS filesystem method init failed: rc = %d\n",
obd->obd_name, rc);
GOTO(err_ns, rc);
}
rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
if (rc)
GOTO(err_fs, rc);
/* No recovery for MGC's */
obd->obd_replayable = 0;
/* Internal mgs setup */
mgs_init_fsdb_list(obd);
cfs_mutex_init(&mgs->mgs_mutex);
mgs->mgs_start_time = cfs_time_current_sec();
/* Setup proc */
lprocfs_mgs_init_vars(&lvars);
if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0) {
lproc_mgs_setup(obd);
rc = lprocfs_alloc_md_stats(obd, LPROC_MGS_LAST);
if (rc)
GOTO(err_llog, rc);
}
/* Start the service threads */
mgs->mgs_service =
ptlrpc_init_svc(MGS_NBUFS, MGS_BUFSIZE, MGS_MAXREQSIZE,
MGS_MAXREPSIZE, MGS_REQUEST_PORTAL,
MGC_REPLY_PORTAL, 2,
mgs_handle, LUSTRE_MGS_NAME,
obd->obd_proc_entry, target_print_req,
MGS_THREADS_AUTO_MIN, MGS_THREADS_AUTO_MAX,
"ll_mgs", LCT_MD_THREAD, NULL);
if (!mgs->mgs_service) {
CERROR("failed to start service\n");
GOTO(err_llog, rc = -ENOMEM);
}
rc = ptlrpc_start_threads(mgs->mgs_service);
if (rc)
GOTO(err_thread, rc);
ping_evictor_start();
CDEBUG(D_INFO, "MGS %s started\n", obd->obd_name);
RETURN(0);
err_thread:
ptlrpc_unregister_service(mgs->mgs_service);
err_llog:
lproc_mgs_cleanup(obd);
obd_llog_finish(obd, 0);
err_fs:
/* No extra cleanup needed for llog_init_commit_thread() */
mgs_fs_cleanup(obd);
err_ns:
ldlm_namespace_free(obd->obd_namespace, NULL, 0);
obd->obd_namespace = NULL;
err_ops:
fsfilt_put_ops(obd->obd_fsops);
err_put:
server_put_mount(obd->obd_name, mnt);
mgs->mgs_sb = 0;
return rc;
}
