EXPORT_SYMBOL(mgc_logname2resid);
/********************** config llog list **********************/
-static struct list_head config_llog_list = LIST_HEAD_INIT(config_llog_list);
+static LIST_HEAD(config_llog_list);
static DEFINE_SPINLOCK(config_list_lock); /* protects config_llog_list */
/* Take a reference to a config log */
{
ENTRY;
atomic_inc(&cld->cld_refcount);
- CDEBUG(D_INFO, "log %s refs %d\n", cld->cld_logname,
+ CDEBUG(D_INFO, "log %s (%p) refs %d\n", cld->cld_logname, cld,
atomic_read(&cld->cld_refcount));
RETURN(0);
}
if (unlikely(!cld))
RETURN_EXIT;
- CDEBUG(D_INFO, "log %s refs %d\n", cld->cld_logname,
+ CDEBUG(D_INFO, "log %s(%p) refs %d\n", cld->cld_logname, cld,
atomic_read(&cld->cld_refcount));
LASSERT(atomic_read(&cld->cld_refcount) > 0);
return ERR_PTR(rc);
}
+DEFINE_MUTEX(llog_process_lock);
+
+static inline void config_mark_cld_stop_nolock(struct config_llog_data *cld)
+{
+ ENTRY;
+
+ spin_lock(&config_list_lock);
+ cld->cld_stopping = 1;
+ spin_unlock(&config_list_lock);
+
+ CDEBUG(D_INFO, "lockh %#llx\n", cld->cld_lockh.cookie);
+ if (!ldlm_lock_addref_try(&cld->cld_lockh, LCK_CR))
+ ldlm_lock_decref_and_cancel(&cld->cld_lockh, LCK_CR);
+}
+
static inline void config_mark_cld_stop(struct config_llog_data *cld)
{
if (cld) {
mutex_lock(&cld->cld_lock);
- spin_lock(&config_list_lock);
- cld->cld_stopping = 1;
- spin_unlock(&config_list_lock);
+ config_mark_cld_stop_nolock(cld);
mutex_unlock(&cld->cld_lock);
}
}
RETURN(rc);
}
- spin_lock(&config_list_lock);
- cld->cld_stopping = 1;
- spin_unlock(&config_list_lock);
-
cld_recover = cld->cld_recover;
cld->cld_recover = NULL;
cld_params = cld->cld_params;
cld->cld_barrier = NULL;
cld_sptlrpc = cld->cld_sptlrpc;
cld->cld_sptlrpc = NULL;
+
+ config_mark_cld_stop_nolock(cld);
mutex_unlock(&cld->cld_lock);
config_mark_cld_stop(cld_recover);
- config_log_put(cld_recover);
-
config_mark_cld_stop(cld_params);
- config_log_put(cld_params);
+ config_mark_cld_stop(cld_barrier);
+ config_mark_cld_stop(cld_sptlrpc);
+ config_log_put(cld_params);
+ config_log_put(cld_recover);
/* don't set cld_stopping on nm lock as other targets may be active */
config_log_put(cld_nodemap);
-
- if (cld_barrier) {
- mutex_lock(&cld_barrier->cld_lock);
- cld_barrier->cld_stopping = 1;
- mutex_unlock(&cld_barrier->cld_lock);
- config_log_put(cld_barrier);
- }
-
+ config_log_put(cld_barrier);
config_log_put(cld_sptlrpc);
/* drop the ref from the find */
config_log_put(cld_prev);
/* Wait a bit to see if anyone else needs a requeue */
- lwi = (struct l_wait_info) { 0 };
- l_wait_event(rq_waitq, rq_state & (RQ_NOW | RQ_STOP),
- &lwi);
+ wait_event_idle(rq_waitq, rq_state & (RQ_NOW | RQ_STOP));
spin_lock(&config_list_lock);
}
cld->cld_stopping, rq_state);
LASSERT(atomic_read(&cld->cld_refcount) > 0);
+ /* lets cancel an existent lock to mark cld as "lostlock" */
+ CDEBUG(D_INFO, "lockh %#llx\n", cld->cld_lockh.cookie);
+ if (!ldlm_lock_addref_try(&cld->cld_lockh, LCK_CR))
+ ldlm_lock_decref_and_cancel(&cld->cld_lockh, LCK_CR);
+
mutex_lock(&cld->cld_lock);
spin_lock(&config_list_lock);
- if (!(rq_state & RQ_STOP) && !cld->cld_stopping && !cld->cld_lostlock) {
+ if (!(rq_state & RQ_STOP) && !cld->cld_stopping) {
cld->cld_lostlock = 1;
rq_state |= RQ_NOW;
wakeup = true;
/* COMPAT_146 - old config logs may have added profiles we don't
know about */
- if (obd->obd_type->typ_refcnt <= 1)
+ if (atomic_read(&obd->obd_type->typ_refcnt) <= 1)
/* Only for the last mgc */
class_del_profiles();
LASSERT(atomic_read(&cld->cld_refcount) > 0);
lock->l_ast_data = NULL;
+ cld->cld_lockh.cookie = 0;
/* Are we done with this log? */
if (cld->cld_stopping) {
CDEBUG(D_MGC, "log %s: stopping, won't requeue\n",
/* Get the cld, it will be released in mgc_blocking_ast. */
config_log_get(cld);
rc = ldlm_lock_set_data(&lockh, (void *)cld);
+ LASSERT(!lustre_handle_is_used(&cld->cld_lockh));
LASSERT(rc == 0);
+ cld->cld_lockh = lockh;
} else {
CDEBUG(D_MGC, "Can't get cfg lock: %d\n", rcl);
+ cld->cld_lockh.cookie = 0;
if (rcl == -ESHUTDOWN &&
atomic_read(&mgc->u.cli.cl_mgc_refcount) > 0 && !retry) {
struct obd_import *imp;
struct l_wait_info lwi;
- int secs = cfs_time_seconds(obd_timeout);
+ long timeout = cfs_time_seconds(obd_timeout);
mutex_unlock(&cld->cld_lock);
imp = class_exp2cliimp(mgc->u.cli.cl_mgc_mgsexp);
* FULL or closed */
ptlrpc_pinger_force(imp);
- lwi = LWI_TIMEOUT(secs, NULL, NULL);
+ lwi = LWI_TIMEOUT(timeout, NULL, NULL);
l_wait_event(imp->imp_recovery_waitq,
!mgc_import_in_recovery(imp), &lwi);
else if (cld_is_nodemap(cld))
rc = rcl;
- if (cld_is_recover(cld) && rc) {
- if (!rcl) {
- CERROR("%s: recover log %s failed, not fatal: rc = %d\n",
- mgc->obd_name, cld->cld_logname, rc);
- spin_lock(&config_list_lock);
- cld->cld_lostlock = 1;
- spin_unlock(&config_list_lock);
- }
- rc = 0; /* this is not a fatal error for recover log */
- }
} else if (!cld_is_barrier(cld)) {
rc = mgc_process_cfg_log(mgc, cld, rcl != 0);
}
CDEBUG(D_MGC, "%s: configuration from log '%s' %sed (%d).\n",
mgc->obd_name, cld->cld_logname, rc ? "fail" : "succeed", rc);
- mutex_unlock(&cld->cld_lock);
-
/* Now drop the lock so MGS can revoke it */
if (!rcl) {
rcl = mgc_cancel(mgc->u.cli.cl_mgc_mgsexp, LCK_CR, &lockh);
if (rcl)
CERROR("Can't drop cfg lock: %d\n", rcl);
}
+ mutex_unlock(&cld->cld_lock);
/* requeue nodemap lock immediately if transfer was interrupted */
- if (cld_is_nodemap(cld) && rc == -EAGAIN) {
+ if ((cld_is_nodemap(cld) && rc == -EAGAIN) ||
+ (cld_is_recover(cld) && rc)) {
+ if (cld_is_recover(cld))
+ CWARN("%s: IR log %s failed, not fatal: rc = %d\n",
+ mgc->obd_name, cld->cld_logname, rc);
mgc_requeue_add(cld);
rc = 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff