* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LUSTRE_LU_TARGET_H
#include <lustre_update.h>
#include <lustre_disk.h>
#include <lustre_lfsck.h>
+#include <lu_object.h>
/* Each one represents a distribute transaction replay
* operation, and updates on each MDTs are linked to
struct list_head tdtd_list;
/* Threads to manage distribute transaction */
- wait_queue_head_t tdtd_commit_thread_waitq;
+ struct task_struct *tdtd_commit_task;
atomic_t tdtd_refcount;
+ struct lu_env tdtd_env;
/* recovery update */
distribute_txn_replay_handler_t tdtd_replay_handler;
void *tdtd_show_retrievers_cbdata;
};
+struct tg_grants_data {
+ /* grants: all values in bytes */
+ /* grant lock to protect all grant counters */
+ spinlock_t tgd_grant_lock;
+ /* total amount of dirty data reported by clients in incoming obdo */
+ u64 tgd_tot_dirty;
+ /* sum of filesystem space granted to clients for async writes */
+ u64 tgd_tot_granted;
+ /* grant used by I/Os in progress (between prepare and commit) */
+ u64 tgd_tot_pending;
+ /* amount of available space in percentage that is never used for
+ * grants, used on MDT to always keep space for metadata. */
+ u64 tgd_reserved_pcnt;
+ /* number of clients using grants */
+ int tgd_tot_granted_clients;
+ /* shall we grant space to clients not
+ * supporting OBD_CONNECT_GRANT_PARAM? */
+ int tgd_grant_compat_disable;
+ /* protect all statfs-related counters */
+ spinlock_t tgd_osfs_lock;
+ time64_t tgd_osfs_age;
+ int tgd_blockbits;
+ /* counters used during statfs update, protected by ofd_osfs_lock.
+ * record when some statfs refresh are in progress */
+ int tgd_statfs_inflight;
+ /* writes between prep & commit which might be accounted twice in
+ * ofd_osfs.os_bavail */
+ u64 tgd_osfs_unstable;
+ /* track writes completed while statfs refresh is underway.
+ * tracking is only effective when ofd_statfs_inflight > 1 */
+ u64 tgd_osfs_inflight;
+ /* statfs optimization: we cache a bit */
+ struct obd_statfs tgd_osfs;
+};
+
struct lu_target {
struct obd_device *lut_obd;
struct dt_device *lut_bottom;
+ struct dt_device_param lut_dt_conf;
struct target_distribute_txn_data *lut_tdtd;
- struct ptlrpc_thread lut_tdtd_commit_thread;
/* supported opcodes and handlers for this target */
struct tgt_opc_slice *lut_slice;
unsigned int lut_syncjournal:1,
lut_sync_lock_cancel:2,
/* e.g. OST node */
- lut_no_reconstruct:1;
+ lut_no_reconstruct:1,
+ /* enforce recovery for local clients */
+ lut_local_recovery:1,
+ lut_cksum_t10pi_enforce:1;
+ /* checksum types supported on this node */
+ enum cksum_types lut_cksum_types_supported;
/** last_rcvd file */
struct dt_object *lut_last_rcvd;
/* transaction callbacks */
/** cross MDT locks which should trigger Sync-on-Lock-Cancel */
spinlock_t lut_slc_locks_guard;
struct list_head lut_slc_locks;
+
+ /* target grants fields */
+ struct tg_grants_data lut_tgd;
+
+ /* target tunables */
+ const struct attribute **lut_attrs;
+
+ /* FMD (file modification data) values */
+ int lut_fmd_max_num;
+ time64_t lut_fmd_max_age;
};
+#define LUT_FMD_MAX_NUM_DEFAULT 128
+#define LUT_FMD_MAX_AGE_DEFAULT (obd_timeout + 10)
+
/* number of slots in reply bitmap */
#define LUT_REPLY_SLOTS_PER_CHUNK (1<<20)
#define LUT_REPLY_SLOTS_MAX_CHUNKS 16
+#define TRD_INDEX_MEMORY -1
+
/**
* Target reply data
*/
int trd_index;
/** tag the client used */
__u16 trd_tag;
+ /** child fid to reconstruct open */
+ struct lu_fid trd_object;
};
extern struct lu_context_key tgt_session_key;
/* object affected by VBR, for last_rcvd_update */
struct dt_object *tsi_vbr_obj;
+ /* open child object, for last_rcvd_update */
+ struct dt_object *tsi_open_obj;
/* opdata for mdt_reint_open(), has the same value as
* ldlm_reply:lock_policy_res1. The tgt_update_last_rcvd() stores
* this value onto disk for recovery when tgt_txn_stop_cb() is called.
}
}
+static inline void tgt_open_obj_set(const struct lu_env *env,
+ struct dt_object *obj)
+{
+ struct tgt_session_info *tsi;
+
+ if (env->le_ses != NULL) {
+ tsi = tgt_ses_info(env);
+ tsi->tsi_open_obj = obj;
+ }
+}
+
static inline void tgt_opdata_set(const struct lu_env *env, __u64 flags)
{
struct tgt_session_info *tsi;
/*
* struct *_body is passed in the incoming message, and object
* identified by this fid exists on disk.
- * *
- * "habeo corpus" == "I have a body"
*/
- HABEO_CORPUS = (1 << 0),
+ HAS_BODY = BIT(0),
/*
* struct ldlm_request is passed in the incoming message.
- *
- * "habeo clavis" == "I have a key"
- * */
- HABEO_CLAVIS = (1 << 1),
+ */
+ HAS_KEY = BIT(1),
/*
* this request has fixed reply format, so that reply message can be
* packed by generic code.
- *
- * "habeo refero" == "I have a reply"
*/
- HABEO_REFERO = (1 << 2),
+ HAS_REPLY = BIT(2),
/*
* this request will modify something, so check whether the file system
* is readonly or not, then return -EROFS to client asap if necessary.
- *
- * "mutabor" == "I shall modify"
*/
- MUTABOR = (1 << 3)
+ IS_MUTABLE = BIT(3)
};
struct tgt_handler {
/* Flags in enum tgt_handler_flags */
__u32 th_flags;
/* Request version for this opcode */
- int th_version;
+ enum lustre_msg_version th_version;
/* Handler function */
int (*th_act)(struct tgt_session_info *tsi);
/* Handler function for high priority requests */
return exp_connect_flags(exp) & OBD_CONNECT_MULTIMODRPCS;
}
+static inline bool tgt_is_increasing_xid_client(struct obd_export *exp)
+{
+ return exp_connect_flags2(exp) & OBD_CONNECT2_INC_XID;
+}
/* target/tgt_handler.c */
int tgt_request_handle(struct ptlrpc_request *req);
int tgt_bl_callback(struct tgt_session_info *tsi);
int tgt_cp_callback(struct tgt_session_info *tsi);
int tgt_llog_open(struct tgt_session_info *tsi);
-int tgt_llog_close(struct tgt_session_info *tsi);
-int tgt_llog_destroy(struct tgt_session_info *tsi);
int tgt_llog_read_header(struct tgt_session_info *tsi);
int tgt_llog_next_block(struct tgt_session_info *tsi);
int tgt_llog_prev_block(struct tgt_session_info *tsi);
int tgt_io_thread_init(struct ptlrpc_thread *thread);
void tgt_io_thread_done(struct ptlrpc_thread *thread);
-int tgt_extent_lock(struct ldlm_namespace *ns, struct ldlm_res_id *res_id,
- __u64 start, __u64 end, struct lustre_handle *lh,
- int mode, __u64 *flags);
-void tgt_extent_unlock(struct lustre_handle *lh, enum ldlm_mode mode);
-int tgt_brw_lock(struct ldlm_namespace *ns, struct ldlm_res_id *res_id,
- struct obd_ioobj *obj, struct niobuf_remote *nb,
- struct lustre_handle *lh, enum ldlm_mode mode);
-void tgt_brw_unlock(struct obd_ioobj *obj, struct niobuf_remote *niob,
- struct lustre_handle *lh, enum ldlm_mode mode);
+int tgt_mdt_data_lock(struct ldlm_namespace *ns, struct ldlm_res_id *res_id,
+ struct lustre_handle *lh, int mode, __u64 *flags);
+int tgt_extent_lock(const struct lu_env *env, struct ldlm_namespace *ns,
+ struct ldlm_res_id *res_id, __u64 start, __u64 end,
+ struct lustre_handle *lh, int mode, __u64 *flags);
+void tgt_data_unlock(struct lustre_handle *lh, enum ldlm_mode mode);
int tgt_brw_read(struct tgt_session_info *tsi);
int tgt_brw_write(struct tgt_session_info *tsi);
+int tgt_lseek(struct tgt_session_info *tsi);
int tgt_hpreq_handler(struct ptlrpc_request *req);
+void tgt_register_lfsck_in_notify_local(int (*notify)(const struct lu_env *,
+ struct dt_device *,
+ struct lfsck_req_local *,
+ struct thandle *));
void tgt_register_lfsck_in_notify(int (*notify)(const struct lu_env *,
struct dt_device *,
- struct lfsck_request *,
- struct thandle *));
+ struct lfsck_request *));
void tgt_register_lfsck_query(int (*query)(const struct lu_env *,
struct dt_device *,
struct lfsck_request *,
struct lfsck_reply *,
struct lfsck_query *));
-bool req_can_reconstruct(struct ptlrpc_request *req, struct tg_reply_data *trd);
+int req_can_reconstruct(struct ptlrpc_request *req, struct tg_reply_data *trd);
extern struct tgt_handler tgt_sec_ctx_handlers[];
extern struct tgt_handler tgt_lfsck_handlers[];
int tgt_server_data_update(const struct lu_env *env, struct lu_target *tg,
int sync);
int tgt_reply_data_init(const struct lu_env *env, struct lu_target *tgt);
-bool tgt_lookup_reply(struct ptlrpc_request *req, struct tg_reply_data *trd);
-int tgt_add_reply_data(const struct lu_env *env, struct lu_target *tgt,
- struct tg_export_data *ted, struct tg_reply_data *trd,
- struct thandle *th, bool update_lrd_file);
+int tgt_lookup_reply(struct ptlrpc_request *req, struct tg_reply_data *trd);
+int tgt_mk_reply_data(const struct lu_env *env, struct lu_target *tgt,
+ struct tg_export_data *ted, struct ptlrpc_request *req,
+ __u64 opdata, struct thandle *th, bool write_update,
+ __u64 transno);
struct tg_reply_data *tgt_lookup_reply_by_xid(struct tg_export_data *ted,
__u64 xid);
+int tgt_tunables_init(struct lu_target *lut);
+void tgt_tunables_fini(struct lu_target *lut);
+void tgt_mask_cksum_types(struct lu_target *lut, enum cksum_types *cksum_types);
+
+/* target/tgt_grant.c */
+static inline int exp_grant_param_supp(struct obd_export *exp)
+{
+ return !!(exp_connect_flags(exp) & OBD_CONNECT_GRANT_PARAM);
+}
+
+/* Blocksize used for client not supporting OBD_CONNECT_GRANT_PARAM.
+ * That's 4KB=2^12 which is the biggest block size known to work whatever
+ * the client's page size is. */
+#define COMPAT_BSIZE_SHIFT 12
+
+void tgt_grant_sanity_check(struct obd_device *obd, const char *func);
+void tgt_grant_connect(const struct lu_env *env, struct obd_export *exp,
+ struct obd_connect_data *data, bool new_conn);
+void tgt_grant_discard(struct obd_export *exp);
+void tgt_grant_prepare_read(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa);
+void tgt_grant_prepare_write(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa, struct niobuf_remote *rnb,
+ int niocount);
+void tgt_grant_commit(struct obd_export *exp, unsigned long grant_used, int rc);
+int tgt_grant_commit_cb_add(struct thandle *th, struct obd_export *exp,
+ unsigned long grant);
+long tgt_grant_create(const struct lu_env *env, struct obd_export *exp,
+ s64 *nr);
+int tgt_statfs_internal(const struct lu_env *env, struct lu_target *lut,
+ struct obd_statfs *osfs, time64_t max_age,
+ int *from_cache);
+ssize_t tot_dirty_show(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ssize_t tot_granted_show(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ssize_t tot_pending_show(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ssize_t grant_compat_disable_show(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ssize_t grant_compat_disable_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count);
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
+ssize_t sync_lock_cancel_show(struct kobject *kobj,
+ struct attribute *attr, char *buf);
+ssize_t sync_lock_cancel_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count);
+#endif
+
+/* FMD */
+void tgt_fmd_update(struct obd_export *exp, const struct lu_fid *fid,
+ __u64 xid);
+bool tgt_fmd_check(struct obd_export *exp, const struct lu_fid *fid,
+ __u64 xid);
+#ifdef DO_FMD_DROP
+void tgt_fmd_drop(struct obd_export *exp, const struct lu_fid *fid);
+#else
+#define tgt_fmd_drop(exp, fid) do {} while (0)
+#endif
/* target/update_trans.c */
int distribute_txn_init(const struct lu_env *env,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff