-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Target-specific export data
*/
struct tg_export_data {
- /** Protects led_lcd below */
- cfs_semaphore_t ted_lcd_lock;
- /** Per-client data for each export */
- struct lsd_client_data *ted_lcd;
- /** Offset of record in last_rcvd file */
- loff_t ted_lr_off;
- /** Client index in last_rcvd file */
- int ted_lr_idx;
+ /** Protects led_lcd below */
+ struct mutex ted_lcd_lock;
+ /** Per-client data for each export */
+ struct lsd_client_data *ted_lcd;
+ /** Offset of record in last_rcvd file */
+ loff_t ted_lr_off;
+ /** Client index in last_rcvd file */
+ int ted_lr_idx;
};
/**
* MDT-specific export data
*/
struct mdt_export_data {
- struct tg_export_data med_ted;
- /** List of all files opened by client on this MDT */
- cfs_list_t med_open_head;
- cfs_spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/
- /** Bitmask of all ibit locks this MDT understands */
- __u64 med_ibits_known;
- cfs_semaphore_t med_idmap_sem;
- struct lustre_idmap_table *med_idmap;
-};
-
-struct osc_creator {
- 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;
- /**
- * Limit oscc_grow_count value, can be changed via proc fs
- */
- int oscc_max_grow_count;
- struct obdo oscc_oa;
- int oscc_flags;
- cfs_waitq_t oscc_waitq; /* creating procs wait on this */
+ struct tg_export_data med_ted;
+ /** List of all files opened by client on this MDT */
+ cfs_list_t med_open_head;
+ spinlock_t med_open_lock; /* med_open_head, mfd_list */
+ /** Bitmask of all ibit locks this MDT understands */
+ __u64 med_ibits_known;
+ struct mutex med_idmap_mutex;
+ struct lustre_idmap_table *med_idmap;
};
struct ec_export_data { /* echo client */
/* In-memory access to client data from OST struct */
/** Filter (oss-side) specific import data */
struct filter_export_data {
- struct tg_export_data fed_ted;
- cfs_spinlock_t fed_lock; /**< protects fed_mod_list */
+ struct tg_export_data fed_ted;
+ spinlock_t fed_lock; /**< protects fed_mod_list */
long fed_dirty; /* in bytes */
long fed_grant; /* in bytes */
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;
+ __u8 fed_pagesize; /* log2 of client page size */
};
struct mgs_export_data {
- cfs_list_t med_clients; /* mgc fs client via this exp */
- cfs_spinlock_t med_lock; /* protect med_clients */
+ cfs_list_t med_clients; /* mgc fs client via this exp */
+ spinlock_t med_lock; /* protect med_clients */
};
/**
* per-NID statistics structure.
* It tracks access patterns to this export on a per-client-NID basis
*/
-typedef struct nid_stat {
+struct nid_stat {
lnet_nid_t nid;
cfs_hlist_node_t nid_hash;
cfs_list_t nid_list;
struct proc_dir_entry *nid_proc;
struct lprocfs_stats *nid_stats;
struct lprocfs_stats *nid_ldlm_stats;
- struct brw_stats *nid_brw_stats;
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_t exp_rpc_count; /* RPC references */
cfs_atomic_t exp_cb_count; /* Commit callback references */
+ /** Number of queued replay requests to be processes */
+ cfs_atomic_t exp_replay_count;
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;
+ spinlock_t exp_locks_list_guard;
#endif
- /** Number of queued replay requests to be processes */
- cfs_atomic_t exp_replay_count;
/** UUID of client connected to this export */
struct obd_uuid exp_client_uuid;
/** To link all exports on an obd device */
cfs_list_t exp_obd_chain_timed;
/** Obd device of this export */
struct obd_device *exp_obd;
- /** "reverse" import to send requests (e.g. from ldlm) back to client */
+ /**
+ * "reverse" import to send requests (e.g. from ldlm) back to client
+ * exp_lock protect its change
+ */
struct obd_import *exp_imp_reverse;
struct nid_stat *exp_nid_stats;
struct lprocfs_stats *exp_md_stats;
__u32 exp_conn_cnt;
/** Hash list of all ldlm locks granted on this export */
cfs_hash_t *exp_lock_hash;
- /** lock to protect exp_lock_hash accesses */
- cfs_spinlock_t exp_lock_hash_lock;
+ /**
+ * Hash list for Posix lock deadlock detection, added with
+ * ldlm_lock::l_exp_flock_hash.
+ */
+ cfs_hash_t *exp_flock_hash;
cfs_list_t exp_outstanding_replies;
cfs_list_t exp_uncommitted_replies;
- cfs_spinlock_t exp_uncommitted_replies_lock;
+ spinlock_t exp_uncommitted_replies_lock;
/** Last committed transno for this export */
__u64 exp_last_committed;
/** When was last request received */
cfs_time_t exp_last_request_time;
/** On replay all requests waiting for replay are linked here */
cfs_list_t exp_req_replay_queue;
- /** protects exp_flags and exp_outstanding_replies */
- cfs_spinlock_t exp_lock;
- /** Compatibility flags for this export */
- __u64 exp_connect_flags;
+ /**
+ * protects exp_flags, exp_outstanding_replies and the change
+ * of exp_imp_reverse
+ */
+ spinlock_t exp_lock;
+ /** Compatibility flags for this export are embedded into
+ * exp_connect_data */
+ struct obd_connect_data exp_connect_data;
enum obd_option exp_flags;
unsigned long exp_failed:1,
exp_in_recovery:1,
exp_libclient:1, /* liblustre client? */
/* client timed out and tried to reconnect,
* but couldn't because of active rpcs */
- exp_abort_active_req:1;
+ exp_abort_active_req:1,
+ /* if to swap nidtbl entries for 2.2 clients.
+ * Only used by the MGS to fix LU-1644. */
+ exp_need_mne_swab:1;
/* 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 */
/** protects exp_hp_rpcs */
- cfs_spinlock_t exp_rpc_lock;
- cfs_list_t exp_hp_rpcs; /* (potential) HP RPCs */
+ spinlock_t exp_rpc_lock;
+ cfs_list_t exp_hp_rpcs; /* (potential) HP RPCs */
/** blocking dlm lock list, protected by exp_bl_list_lock */
cfs_list_t exp_bl_list;
- cfs_spinlock_t exp_bl_list_lock;
+ spinlock_t exp_bl_list_lock;
/** Target specific data */
union {
#define exp_filter_data u.eu_filter_data
#define exp_ec_data u.eu_ec_data
+static inline __u64 *exp_connect_flags_ptr(struct obd_export *exp)
+{
+ return &exp->exp_connect_data.ocd_connect_flags;
+}
+
+static inline __u64 exp_connect_flags(struct obd_export *exp)
+{
+ return *exp_connect_flags_ptr(exp);
+}
+
+static inline int exp_max_brw_size(struct obd_export *exp)
+{
+ LASSERT(exp != NULL);
+ if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE)
+ return exp->exp_connect_data.ocd_brw_size;
+
+ return ONE_MB_BRW_SIZE;
+}
+
+static inline int exp_connect_multibulk(struct obd_export *exp)
+{
+ return exp_max_brw_size(exp) > ONE_MB_BRW_SIZE;
+}
+
static inline int exp_expired(struct obd_export *exp, cfs_duration_t age)
{
LASSERT(exp->exp_delayed);
static inline int exp_connect_cancelset(struct obd_export *exp)
{
- LASSERT(exp != NULL);
- return !!(exp->exp_connect_flags & OBD_CONNECT_CANCELSET);
+ LASSERT(exp != NULL);
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET);
}
static inline int exp_connect_lru_resize(struct obd_export *exp)
{
- LASSERT(exp != NULL);
- return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE);
+ LASSERT(exp != NULL);
+ return !!(exp_connect_flags(exp) & 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);
+ LASSERT(exp != NULL);
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_RMT_CLIENT);
}
static inline int client_is_remote(struct obd_export *exp)
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);
+ LASSERT(exp != NULL);
+ LASSERT(exp->exp_connection);
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR);
}
static inline int exp_connect_som(struct obd_export *exp)
{
- LASSERT(exp != NULL);
- return !!(exp->exp_connect_flags & OBD_CONNECT_SOM);
+ LASSERT(exp != NULL);
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_SOM);
+}
+
+static inline int exp_connect_umask(struct obd_export *exp)
+{
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_UMASK);
}
static inline int imp_connect_lru_resize(struct obd_import *imp)
return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
}
+static inline int exp_connect_layout(struct obd_export *exp)
+{
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_LAYOUTLOCK);
+}
+
+static inline bool exp_connect_lvb_type(struct obd_export *exp)
+{
+ LASSERT(exp != NULL);
+ if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE)
+ return true;
+ else
+ return false;
+}
+
+static inline bool imp_connect_lvb_type(struct obd_import *imp)
+{
+ struct obd_connect_data *ocd;
+
+ LASSERT(imp != NULL);
+ ocd = &imp->imp_connect_data;
+ if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE)
+ return true;
+ else
+ return false;
+}
+
extern struct obd_export *class_conn2export(struct lustre_handle *conn);
extern struct obd_device *class_conn2obd(struct lustre_handle *conn);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff