*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* @{
*/
+#include <linux/rhashtable.h>
+#include <linux/workqueue.h>
+
#include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
+#include <uapi/linux/lustre/lustre_idl.h>
#include <lustre_dlm.h>
struct mds_client_data;
* Target-specific export data
*/
struct tg_export_data {
- /** Protects led_lcd below */
+ /** Protects ted_lcd, ted_reply_* and
+ * ted_release_* fields below */
struct mutex ted_lcd_lock;
/** Per-client data for each export */
struct lsd_client_data *ted_lcd;
loff_t ted_lr_off;
/** Client index in last_rcvd file */
int ted_lr_idx;
+
+ /**
+ * ted_nodemap_lock is used to ensure that the nodemap is not destroyed
+ * between the time that ted_nodemap is checked for NULL, and a
+ * reference is taken. Modifications to ted_nodemap require that the
+ * active_config_lock and the nodemap(s)'s nm_member_list_lock be
+ * taken, as well as ted_nodemap_lock, so the export can be properly
+ * added to or removed from the nodemap's member list. When an export
+ * is added to a nodemap, a reference on that nodemap must be taken.
+ * That reference can be put only after ted_nodemap no longer refers to
+ * it.
+ */
+ spinlock_t ted_nodemap_lock;
+ struct lu_nodemap *ted_nodemap;
+ struct list_head ted_nodemap_member;
+
+ /** last version of nodemap config sent to client */
+ __u64 ted_nodemap_version;
+
+ /* Every reply data fields below are
+ * protected by ted_lcd_lock */
+ /** List of reply data */
+ struct list_head ted_reply_list;
+ int ted_reply_cnt;
+ /** Reply data with highest transno is retained */
+ struct tg_reply_data *ted_reply_last;
+ /* Statistics */
+ int ted_reply_max; /* high water mark */
+ int ted_release_xid;
+ int ted_release_tag;
+ /* grants */
+ long ted_dirty; /* in bytes */
+ long ted_grant; /* in bytes */
+ long ted_pending; /* bytes just being written */
+ __u8 ted_pagebits; /* log2 of client page size */
+
+ /**
+ * File Modification Data (FMD) tracking
+ */
+ spinlock_t ted_fmd_lock; /* protects ted_fmd_list */
+ struct list_head ted_fmd_list; /* FIDs being modified */
+ int ted_fmd_count;/* items in ted_fmd_list */
};
/**
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;
+ struct list_head 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 */
- cfs_list_t eced_locks;
+ struct list_head eced_locks;
};
/* 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;
- 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 */
+ __u64 fed_lastid_gen;
+ /* count of SOFT_SYNC RPCs, which will be reset after
+ * ofd_soft_sync_limit number of RPCs, and trigger a sync. */
+ atomic_t fed_soft_sync_count;
+ __u32 fed_group;
};
struct mgs_export_data {
- cfs_list_t med_clients; /* mgc fs client via this exp */
+ struct list_head med_clients; /* mgc fs client via this exp */
spinlock_t med_lock; /* protect med_clients */
};
* It tracks access patterns to this export on a per-client-NID basis
*/
struct nid_stat {
- lnet_nid_t nid;
- 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;
- cfs_atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash
- exp_nid_stats */
+ lnet_nid_t nid;
+ struct hlist_node nid_hash;
+ struct list_head nid_list;
+ struct obd_device *nid_obd;
+ struct proc_dir_entry *nid_proc;
+ struct lprocfs_stats *nid_stats;
+ struct lprocfs_stats *nid_ldlm_stats;
+ atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash
+ exp_nid_stats */
};
#define nidstat_getref(nidstat) \
do { \
- cfs_atomic_inc(&(nidstat)->nid_exp_ref_count); \
+ 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); \
+ atomic_dec(&(nidstat)->nid_exp_ref_count); \
+ LASSERTF(atomic_read(&(nidstat)->nid_exp_ref_count) >= 0, \
+ "stat %p nid_exp_ref_count < 0\n", nidstat); \
} while(0)
enum obd_option {
* attached to the same obd device.
*/
struct obd_export {
- /**
- * Export handle, it's id is provided to client on connect
- * Subsequent client RPCs contain this handle id to identify
- * what export they are talking to.
- */
- struct portals_handle exp_handle;
- 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 */
+ /**
+ * Export handle, it's id is provided to client on connect
+ * Subsequent client RPCs contain this handle id to identify
+ * what export they are talking to.
+ */
+ struct portals_handle exp_handle;
+ /**
+ * 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_handle.href by 3
+ */
+ atomic_t exp_rpc_count; /* RPC references */
+ 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 */
+ atomic_t exp_replay_count;
+ atomic_t exp_locks_count; /** Lock references */
#if LUSTRE_TRACKS_LOCK_EXP_REFS
- cfs_list_t exp_locks_list;
- spinlock_t exp_locks_list_guard;
+ struct list_head exp_locks_list;
+ spinlock_t exp_locks_list_guard;
#endif
/** UUID of client connected to this export */
- struct obd_uuid exp_client_uuid;
+ struct obd_uuid exp_client_uuid;
/** To link all exports on an obd device */
- 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 */
+ struct list_head exp_obd_chain;
+ /** work_struct for destruction of export */
+ struct work_struct exp_zombie_work;
+ /* Unlinked export list */
+ struct list_head exp_stale_list;
+ struct rhash_head exp_uuid_hash; /** uuid-export hash */
+ struct hlist_node exp_nid_hash; /** nid-export hash */
+ struct hlist_node exp_gen_hash; /** last_rcvd clt gen hash */
/**
* All exports eligible for ping evictor are linked into a list
* through this field in "most time since last request on this export"
* order
* protected by obd_dev_lock
*/
- cfs_list_t exp_obd_chain_timed;
- /** Obd device of this export */
- struct obd_device *exp_obd;
+ struct list_head 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
* exp_lock protect its change
*/
struct obd_import *exp_imp_reverse;
struct nid_stat *exp_nid_stats;
- struct lprocfs_stats *exp_md_stats;
/** Active connetion */
struct ptlrpc_connection *exp_connection;
- /** Connection count value from last succesful reconnect rpc */
- __u32 exp_conn_cnt;
- /** Hash list of all ldlm locks granted on this export */
- cfs_hash_t *exp_lock_hash;
- /**
+ /** Connection count value from last successful reconnect rpc */
+ __u32 exp_conn_cnt;
+ /** Hash list of all ldlm locks granted on this export */
+ struct cfs_hash *exp_lock_hash;
+ /**
* 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;
- 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;
+ */
+ struct cfs_hash *exp_flock_hash;
+ struct list_head exp_outstanding_replies;
+ struct list_head exp_uncommitted_replies;
+ spinlock_t exp_uncommitted_replies_lock;
+ /** Last committed transno for this export */
+ __u64 exp_last_committed;
+ /** When was last request received */
+ time64_t exp_last_request_time;
+ /** On replay all requests waiting for replay are linked here */
+ struct list_head exp_req_replay_queue;
/**
* protects exp_flags, exp_outstanding_replies and the change
* of exp_imp_reverse
*/
- spinlock_t exp_lock;
+ 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_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? */
- /* client timed out and tried to reconnect,
- * but couldn't because of active rpcs */
- 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 */
- struct sptlrpc_flavor exp_flvr_old[2]; /* about-to-expire */
- cfs_time_t exp_flvr_expire[2]; /* seconds */
-
- /** protects exp_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;
- spinlock_t exp_bl_list_lock;
+ struct obd_connect_data exp_connect_data;
+ 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,
+ /* if to swap nidtbl entries for 2.2 clients.
+ * Only used by the MGS to fix LU-1644. */
+ exp_need_mne_swab:1,
+ /* The export already got final replay ping
+ * request. */
+ exp_replay_done:1,
+ /* local client with recovery disabled */
+ exp_no_recovery:1;
+ /* also protected by exp_lock */
+ enum lustre_sec_part exp_sp_peer;
+ struct sptlrpc_flavor exp_flvr; /* current */
+ struct sptlrpc_flavor exp_flvr_old[2]; /* about-to-expire */
+ time64_t exp_flvr_expire[2]; /* seconds */
+
+ /** protects exp_hp_rpcs */
+ spinlock_t exp_rpc_lock;
+ struct list_head exp_hp_rpcs; /* (potential) HP RPCs */
+ struct list_head exp_reg_rpcs; /* RPC being handled */
+
+ /** blocking dlm lock list, protected by exp_bl_list_lock */
+ struct list_head exp_bl_list;
+ spinlock_t exp_bl_list_lock;
/** Target specific data */
union {
struct ec_export_data eu_ec_data;
struct mgs_export_data eu_mgs_data;
} u;
+
+ struct adaptive_timeout exp_bl_lock_at;
+
+ /** highest XID received by export client that has no
+ * unreceived lower-numbered XID
+ */
+ __u64 exp_last_xid;
+ long *exp_used_slots;
};
#define exp_target_data u.eu_target_data
return *exp_connect_flags_ptr(exp);
}
+static inline __u64 *exp_connect_flags2_ptr(struct obd_export *exp)
+{
+ return &exp->exp_connect_data.ocd_connect_flags2;
+}
+
+static inline __u64 exp_connect_flags2(struct obd_export *exp)
+{
+ if (exp_connect_flags(exp) & OBD_CONNECT_FLAGS2)
+ return *exp_connect_flags2_ptr(exp);
+ return 0;
+}
+
static inline int exp_max_brw_size(struct obd_export *exp)
{
LASSERT(exp != NULL);
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);
- 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_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE);
}
-static inline int exp_connect_rmtclient(struct obd_export *exp)
-{
- LASSERT(exp != NULL);
- return !!(exp_connect_flags(exp) & 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);
return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR);
}
-static inline int exp_connect_som(struct obd_export *exp)
-{
- 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);
return false;
}
+static inline bool imp_connect_disp_stripe(struct obd_import *imp)
+{
+ struct obd_connect_data *ocd;
+
+ LASSERT(imp != NULL);
+ ocd = &imp->imp_connect_data;
+ return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE;
+}
+
+static inline bool imp_connect_shortio(struct obd_import *imp)
+{
+ struct obd_connect_data *ocd = &imp->imp_connect_data;
+
+ return ocd->ocd_connect_flags & OBD_CONNECT_SHORTIO;
+}
+
+static inline __u64 exp_connect_ibits(struct obd_export *exp)
+{
+ struct obd_connect_data *ocd;
+
+ ocd = &exp->exp_connect_data;
+ return ocd->ocd_ibits_known;
+}
+
+static inline int exp_connect_large_acl(struct obd_export *exp)
+{
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_LARGE_ACL);
+}
+
+static inline int exp_connect_lockahead(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCKAHEAD);
+}
+
+static inline int exp_connect_overstriping(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_OVERSTRIPING);
+}
+
+static inline int exp_connect_flr(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_FLR);
+}
+
+static inline int exp_connect_lock_convert(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCK_CONVERT);
+}
+
extern struct obd_export *class_conn2export(struct lustre_handle *conn);
-extern struct obd_device *class_conn2obd(struct lustre_handle *conn);
+
+static inline int exp_connect_archive_id_array(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_ARCHIVE_ID_ARRAY);
+}
+
+static inline int exp_connect_sepol(struct obd_export *exp)
+{
+ return !!(exp_connect_flags2(exp) & OBD_CONNECT2_SELINUX_POLICY);
+}
+
+enum {
+ /* archive_ids in array format */
+ KKUC_CT_DATA_ARRAY_MAGIC = 0x092013cea,
+ /* archive_ids in bitmap format */
+ KKUC_CT_DATA_BITMAP_MAGIC = 0x082018cea,
+};
+
+
+struct kkuc_ct_data {
+ __u32 kcd_magic;
+ __u32 kcd_nr_archives;
+ __u32 kcd_archives[0];
+};
/** @} export */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff