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Diffstat (limited to 'drivers/staging/lustre/lustre/mgc/mgc_request.c')
-rw-r--r--drivers/staging/lustre/lustre/mgc/mgc_request.c60
1 files changed, 38 insertions, 22 deletions
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
index 60d2b0f12693..7947aec5c847 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c
@@ -95,7 +95,7 @@ int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type)
}
EXPORT_SYMBOL(mgc_fsname2resid);
-int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type)
+static int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type)
{
char *name_end;
int len;
@@ -160,7 +160,7 @@ struct config_llog_data *config_log_find(char *logname,
{
struct config_llog_data *cld;
struct config_llog_data *found = NULL;
- void * instance;
+ void *instance;
LASSERT(logname != NULL);
@@ -452,10 +452,14 @@ static int config_log_end(char *logname, struct config_llog_instance *cfg)
int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
- struct obd_import *imp = obd->u.cli.cl_import;
- struct obd_connect_data *ocd = &imp->imp_connect_data;
+ struct obd_import *imp;
+ struct obd_connect_data *ocd;
struct config_llog_data *cld;
+ LPROCFS_CLIMP_CHECK(obd);
+ imp = obd->u.cli.cl_import;
+ ocd = &imp->imp_connect_data;
+
seq_printf(m, "imperative_recovery: %s\n",
OCD_HAS_FLAG(ocd, IMP_RECOV) ? "ENABLED" : "DISABLED");
seq_printf(m, "client_state:\n");
@@ -470,6 +474,7 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
}
spin_unlock(&config_list_lock);
+ LPROCFS_CLIMP_EXIT(obd);
return 0;
}
#endif
@@ -479,9 +484,11 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
#define RQ_NOW 0x2
#define RQ_LATER 0x4
#define RQ_STOP 0x8
-static int rq_state = 0;
+#define RQ_PRECLEANUP 0x10
+static int rq_state;
static wait_queue_head_t rq_waitq;
static DECLARE_COMPLETION(rq_exit);
+static DECLARE_COMPLETION(rq_start);
static void do_requeue(struct config_llog_data *cld)
{
@@ -510,6 +517,8 @@ static void do_requeue(struct config_llog_data *cld)
static int mgc_requeue_thread(void *data)
{
+ bool first = true;
+
CDEBUG(D_MGC, "Starting requeue thread\n");
/* Keep trying failed locks periodically */
@@ -526,13 +535,19 @@ static int mgc_requeue_thread(void *data)
rq_state &= ~(RQ_NOW | RQ_LATER);
spin_unlock(&config_list_lock);
+ if (first) {
+ first = false;
+ complete(&rq_start);
+ }
+
/* Always wait a few seconds to allow the server who
caused the lock revocation to finish its setup, plus some
random so everyone doesn't try to reconnect at once. */
to = MGC_TIMEOUT_MIN_SECONDS * HZ;
to += rand * HZ / 100; /* rand is centi-seconds */
lwi = LWI_TIMEOUT(to, NULL, NULL);
- l_wait_event(rq_waitq, rq_state & RQ_STOP, &lwi);
+ l_wait_event(rq_waitq, rq_state & (RQ_STOP | RQ_PRECLEANUP),
+ &lwi);
/*
* iterate & processing through the list. for each cld, process
@@ -545,6 +560,7 @@ static int mgc_requeue_thread(void *data)
cld_prev = NULL;
spin_lock(&config_list_lock);
+ rq_state &= ~RQ_PRECLEANUP;
list_for_each_entry(cld, &config_llog_list,
cld_list_chain) {
if (!cld->cld_lostlock)
@@ -661,24 +677,26 @@ static atomic_t mgc_count = ATOMIC_INIT(0);
static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
{
int rc = 0;
+ int temp;
switch (stage) {
case OBD_CLEANUP_EARLY:
break;
case OBD_CLEANUP_EXPORTS:
if (atomic_dec_and_test(&mgc_count)) {
- int running;
+ LASSERT(rq_state & RQ_RUNNING);
/* stop requeue thread */
- spin_lock(&config_list_lock);
- running = rq_state & RQ_RUNNING;
- if (running)
- rq_state |= RQ_STOP;
- spin_unlock(&config_list_lock);
- if (running) {
- wake_up(&rq_waitq);
- wait_for_completion(&rq_exit);
- }
+ temp = RQ_STOP;
+ } else {
+ /* wakeup requeue thread to clean our cld */
+ temp = RQ_NOW | RQ_PRECLEANUP;
}
+ spin_lock(&config_list_lock);
+ rq_state |= temp;
+ spin_unlock(&config_list_lock);
+ wake_up(&rq_waitq);
+ if (temp & RQ_STOP)
+ wait_for_completion(&rq_exit);
obd_cleanup_client_import(obd);
rc = mgc_llog_fini(NULL, obd);
if (rc != 0)
@@ -690,8 +708,6 @@ static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
static int mgc_cleanup(struct obd_device *obd)
{
- int rc;
-
/* COMPAT_146 - old config logs may have added profiles we don't
know about */
if (obd->obd_type->typ_refcnt <= 1)
@@ -701,8 +717,7 @@ static int mgc_cleanup(struct obd_device *obd)
lprocfs_obd_cleanup(obd);
ptlrpcd_decref();
- rc = client_obd_cleanup(obd);
- return rc;
+ return client_obd_cleanup(obd);
}
static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
@@ -740,6 +755,7 @@ static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
}
/* rc is the task_struct pointer of mgc_requeue_thread. */
rc = 0;
+ wait_for_completion(&rq_start);
}
return rc;
@@ -951,7 +967,7 @@ static int mgc_target_register(struct obd_export *exp,
return rc;
}
-int mgc_set_info_async(const struct lu_env *env, struct obd_export *exp,
+static int mgc_set_info_async(const struct lu_env *env, struct obd_export *exp,
u32 keylen, void *key, u32 vallen,
void *val, struct ptlrpc_request_set *set)
{
@@ -1727,7 +1743,7 @@ struct obd_ops mgc_obd_ops = {
.o_process_config = mgc_process_config,
};
-int __init mgc_init(void)
+static int __init mgc_init(void)
{
return class_register_type(&mgc_obd_ops, NULL, NULL,
LUSTRE_MGC_NAME, NULL);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.