#ifndef __EXPORT_H
#define __EXPORT_H
+/** \defgroup export export
+ *
+ * @{
+ */
+
+#include <lprocfs_status.h>
#include <lustre/lustre_idl.h>
#include <lustre_dlm.h>
-#include <lprocfs_status.h>
-/* Data stored per client in the last_rcvd file. In le32 order. */
struct mds_client_data;
struct mdt_client_data;
struct mds_idmap_table;
struct mdt_idmap_table;
+struct lu_export_data {
+ /** Protects led_lcd below */
+ cfs_semaphore_t led_lcd_lock;
+ /** Per-client data for each export */
+ struct lsd_client_data *led_lcd;
+ /** Offset of record in last_rcvd file */
+ loff_t led_lr_off;
+ /** Client index in last_rcvd file */
+ int led_lr_idx;
+};
+
struct mdt_export_data {
- struct list_head med_open_head;
- spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/
- struct semaphore med_lcd_lock;
- struct lsd_client_data *med_lcd;
+ struct lu_export_data med_led;
+ cfs_list_t med_open_head;
+ cfs_spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/
__u64 med_ibits_known;
- loff_t med_lr_off;
- int med_lr_idx;
- unsigned int med_rmtclient:1; /* remote client? */
- struct semaphore med_idmap_sem;
+ cfs_semaphore_t med_idmap_sem;
struct lustre_idmap_table *med_idmap;
};
+#define med_lcd_lock med_led.led_lcd_lock
+#define med_lcd med_led.led_lcd
+#define med_lr_off med_led.led_lr_off
+#define med_lr_idx med_led.led_lr_idx
+
struct osc_creator {
- spinlock_t oscc_lock;
- struct list_head oscc_list;
- struct obd_device *oscc_obd;
+ cfs_spinlock_t oscc_lock;
+ cfs_list_t oscc_wait_create_list;
+ struct obd_device *oscc_obd;
obd_id oscc_last_id;//last available pre-created object
obd_id oscc_next_id;// what object id to give out next
int oscc_grow_count;
cfs_waitq_t oscc_waitq; /* creating procs wait on this */
};
-struct ldlm_export_data {
- struct list_head led_held_locks; /* protected by led_lock */
- spinlock_t led_lock;
-};
-
struct ec_export_data { /* echo client */
- struct list_head eced_locks;
+ cfs_list_t eced_locks;
};
/* In-memory access to client data from OST struct */
struct filter_export_data {
- spinlock_t fed_lock; /* protects fed_open_head */
- struct lsd_client_data *fed_lcd;
- loff_t fed_lr_off;
- int fed_lr_idx;
+ struct lu_export_data fed_led;
+ cfs_spinlock_t fed_lock; /**< protects fed_mod_list */
long fed_dirty; /* in bytes */
long fed_grant; /* in bytes */
- struct list_head fed_mod_list; /* files being modified */
+ cfs_list_t fed_mod_list; /* files being modified */
int fed_mod_count;/* items in fed_writing list */
long fed_pending; /* bytes just being written */
__u32 fed_group;
- struct brw_stats fed_brw_stats;
};
+#define fed_lcd_lock fed_led.led_lcd_lock
+#define fed_lcd fed_led.led_lcd
+#define fed_lr_off fed_led.led_lr_off
+#define fed_lr_idx fed_led.led_lr_idx
+
typedef struct nid_stat {
lnet_nid_t nid;
- struct hlist_node nid_hash;
- struct list_head nid_list;
+ cfs_hlist_node_t nid_hash;
+ cfs_list_t nid_list;
struct obd_device *nid_obd;
struct proc_dir_entry *nid_proc;
struct lprocfs_stats *nid_stats;
+ struct lprocfs_stats *nid_ldlm_stats;
struct brw_stats *nid_brw_stats;
- int nid_exp_ref_count;
+ cfs_atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash
+ exp_nid_stats */
}nid_stat_t;
+#define nidstat_getref(nidstat) \
+do { \
+ cfs_atomic_inc(&(nidstat)->nid_exp_ref_count); \
+} while(0)
+
+#define nidstat_putref(nidstat) \
+do { \
+ cfs_atomic_dec(&(nidstat)->nid_exp_ref_count); \
+ LASSERTF(cfs_atomic_read(&(nidstat)->nid_exp_ref_count) >= 0, \
+ "stat %p nid_exp_ref_count < 0\n", nidstat); \
+} while(0)
+
+enum obd_option {
+ OBD_OPT_FORCE = 0x0001,
+ OBD_OPT_FAILOVER = 0x0002,
+ OBD_OPT_ABORT_RECOV = 0x0004,
+};
+
struct obd_export {
struct portals_handle exp_handle;
- atomic_t exp_refcount;
- atomic_t exp_rpc_count;
+ cfs_atomic_t exp_refcount;
+ /**
+ * Set of counters below is to track where export references are
+ * kept. The exp_rpc_count is used for reconnect handling also,
+ * the cb_count and locks_count are for debug purposes only for now.
+ * The sum of them should be less than exp_refcount by 3
+ */
+ cfs_atomic_t exp_rpc_count; /* RPC references */
+ cfs_atomic_t exp_cb_count; /* Commit callback references */
+ cfs_atomic_t exp_locks_count; /** Lock references */
+#if LUSTRE_TRACKS_LOCK_EXP_REFS
+ cfs_list_t exp_locks_list;
+ cfs_spinlock_t exp_locks_list_guard;
+#endif
+ cfs_atomic_t exp_replay_count;
struct obd_uuid exp_client_uuid;
- struct list_head exp_obd_chain;
- struct hlist_node exp_uuid_hash; /* uuid-export hash*/
- struct hlist_node exp_nid_hash; /* nid-export hash */
+ cfs_list_t exp_obd_chain;
+ cfs_hlist_node_t exp_uuid_hash; /* uuid-export hash*/
+ cfs_hlist_node_t exp_nid_hash; /* nid-export hash */
/* exp_obd_chain_timed fo ping evictor, protected by obd_dev_lock */
- struct list_head exp_obd_chain_timed;
+ cfs_list_t exp_obd_chain_timed;
struct obd_device *exp_obd;
struct obd_import *exp_imp_reverse; /* to make RPCs backwards */
struct nid_stat *exp_nid_stats;
struct lprocfs_stats *exp_md_stats;
- struct lprocfs_stats *exp_ldlm_stats;
struct ptlrpc_connection *exp_connection;
__u32 exp_conn_cnt;
- struct ldlm_export_data exp_ldlm_data;
- struct list_head exp_outstanding_replies;
- time_t exp_last_request_time;
- struct list_head exp_req_replay_queue;
- spinlock_t exp_lock; /* protects flags int below */
+ cfs_hash_t *exp_lock_hash; /* existing lock hash */
+ cfs_spinlock_t exp_lock_hash_lock;
+ cfs_list_t exp_outstanding_replies;
+ cfs_list_t exp_uncommitted_replies;
+ cfs_spinlock_t exp_uncommitted_replies_lock;
+ __u64 exp_last_committed;
+ cfs_time_t exp_last_request_time;
+ cfs_list_t exp_req_replay_queue;
+ cfs_spinlock_t exp_lock; /* protects flags int below */
/* ^ protects exp_outstanding_replies too */
__u64 exp_connect_flags;
- int exp_flags;
+ enum obd_option exp_flags;
unsigned long exp_failed:1,
exp_in_recovery:1,
exp_disconnected:1,
exp_connecting:1,
+ /** VBR: export missed recovery */
+ exp_delayed:1,
+ /** VBR: failed version checking */
+ exp_vbr_failed:1,
exp_req_replay_needed:1,
exp_lock_replay_needed:1,
exp_need_sync:1,
exp_flvr_changed:1,
exp_flvr_adapt:1,
- exp_libclient:1; /* liblustre client? */
+ exp_libclient:1, /* liblustre client? */
+ /* client timed out and tried to reconnect,
+ * but couldn't because of active rpcs */
+ exp_abort_active_req:1;
+ cfs_list_t exp_queued_rpc; /* RPC to be handled */
/* also protected by exp_lock */
enum lustre_sec_part exp_sp_peer;
struct sptlrpc_flavor exp_flvr; /* current */
cfs_time_t exp_flvr_expire[2]; /* seconds */
union {
+ struct lu_export_data eu_target_data;
struct mdt_export_data eu_mdt_data;
struct filter_export_data eu_filter_data;
struct ec_export_data eu_ec_data;
} u;
};
+#define exp_target_data u.eu_target_data
#define exp_mdt_data u.eu_mdt_data
#define exp_filter_data u.eu_filter_data
#define exp_ec_data u.eu_ec_data
+static inline int exp_expired(struct obd_export *exp, cfs_duration_t age)
+{
+ LASSERT(exp->exp_delayed);
+ return cfs_time_before(cfs_time_add(exp->exp_last_request_time, age),
+ cfs_time_current_sec());
+}
+
static inline int exp_connect_cancelset(struct obd_export *exp)
{
LASSERT(exp != NULL);
return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE);
}
+static inline int exp_connect_rmtclient(struct obd_export *exp)
+{
+ LASSERT(exp != NULL);
+ return !!(exp->exp_connect_flags & OBD_CONNECT_RMT_CLIENT);
+}
+
+static inline int client_is_remote(struct obd_export *exp)
+{
+ struct obd_import *imp = class_exp2cliimp(exp);
+
+ return !!(imp->imp_connect_data.ocd_connect_flags &
+ OBD_CONNECT_RMT_CLIENT);
+}
+
+static inline int exp_connect_vbr(struct obd_export *exp)
+{
+ LASSERT(exp != NULL);
+ LASSERT(exp->exp_connection);
+ return !!(exp->exp_connect_flags & OBD_CONNECT_VBR);
+}
+
+static inline int exp_connect_som(struct obd_export *exp)
+{
+ LASSERT(exp != NULL);
+ return !!(exp->exp_connect_flags & OBD_CONNECT_SOM);
+}
+
static inline int imp_connect_lru_resize(struct obd_import *imp)
{
struct obd_connect_data *ocd;
extern struct obd_export *class_conn2export(struct lustre_handle *conn);
extern struct obd_device *class_conn2obd(struct lustre_handle *conn);
+/** @} export */
+
#endif /* __EXPORT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff