-/* -*- 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.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 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/
struct lustre_cfg;
struct thandle;
-struct txn_param;
struct dt_device;
struct dt_object;
struct dt_index_features;
-struct dt_quota_ctxt;
+struct niobuf_local;
+struct niobuf_remote;
+struct ldlm_enqueue_info;
+
+typedef enum {
+ MNTOPT_USERXATTR = 0x00000001,
+ MNTOPT_ACL = 0x00000002,
+} mntopt_t;
struct dt_device_param {
unsigned ddp_max_name_len;
unsigned ddp_max_nlink;
unsigned ddp_block_shift;
+ mntopt_t ddp_mntopts;
+ unsigned ddp_max_ea_size;
+ void *ddp_mnt; /* XXX: old code can retrieve mnt -bzzz */
+ int ddp_mount_type;
+ unsigned long long ddp_maxbytes;
+ /* percentage of available space to reserve for grant error margin */
+ int ddp_grant_reserved;
+ /* per-inode space consumption */
+ short ddp_inodespace;
+ /* per-fragment grant overhead to be used by client for grant
+ * calculation */
+ int ddp_grant_frag;
};
/**
- * Basic transaction credit op
+ * Per-transaction commit callback function
*/
-enum dt_txn_op {
- DTO_INDEX_INSERT,
- DTO_INDEX_DELETE,
- DTO_IDNEX_UPDATE,
- DTO_OBJECT_CREATE,
- DTO_OBJECT_DELETE,
- DTO_ATTR_SET_BASE,
- DTO_XATTR_SET,
- DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
- DTO_WRITE_BASE,
- DTO_WRITE_BLOCK,
- DTO_ATTR_SET_CHOWN,
-
- DTO_NR
+struct dt_txn_commit_cb;
+typedef void (*dt_cb_t)(struct lu_env *env, struct thandle *th,
+ struct dt_txn_commit_cb *cb, int err);
+/**
+ * Special per-transaction callback for cases when just commit callback
+ * is needed and per-device callback are not convenient to use
+ */
+#define TRANS_COMMIT_CB_MAGIC 0xa0a00a0a
+#define MAX_COMMIT_CB_STR_LEN 32
+
+struct dt_txn_commit_cb {
+ cfs_list_t dcb_linkage;
+ dt_cb_t dcb_func;
+ __u32 dcb_magic;
+ char dcb_name[MAX_COMMIT_CB_STR_LEN];
};
/**
* Return device-wide statistics.
*/
int (*dt_statfs)(const struct lu_env *env,
- struct dt_device *dev, struct kstatfs *sfs);
+ struct dt_device *dev, struct obd_statfs *osfs);
+ /**
+ * Create transaction, described by \a param.
+ */
+ struct thandle *(*dt_trans_create)(const struct lu_env *env,
+ struct dt_device *dev);
/**
* Start transaction, described by \a param.
*/
- struct thandle *(*dt_trans_start)(const struct lu_env *env,
- struct dt_device *dev,
- struct txn_param *param);
+ int (*dt_trans_start)(const struct lu_env *env,
+ struct dt_device *dev, struct thandle *th);
/**
* Finish previously started transaction.
*/
- void (*dt_trans_stop)(const struct lu_env *env,
+ int (*dt_trans_stop)(const struct lu_env *env,
struct thandle *th);
/**
+ * Add commit callback to the transaction.
+ */
+ int (*dt_trans_cb_add)(struct thandle *th,
+ struct dt_txn_commit_cb *dcb);
+ /**
* Return fid of root index object.
*/
int (*dt_root_get)(const struct lu_env *env,
* handling device state, mostly for tests
*/
int (*dt_sync)(const struct lu_env *env, struct dt_device *dev);
- void (*dt_ro)(const struct lu_env *env, struct dt_device *dev);
+ int (*dt_ro)(const struct lu_env *env, struct dt_device *dev);
/**
* Start a transaction commit asynchronously
*
struct dt_device *dev,
int mode, unsigned long timeout,
__u32 alg, struct lustre_capa_key *keys);
- /**
- * Initialize quota context.
- */
- void (*dt_init_quota_ctxt)(const struct lu_env *env,
- struct dt_device *dev,
- struct dt_quota_ctxt *ctxt, void *data);
-
- /**
- * get transaction credits for given \a op.
- */
- int (*dt_credit_get)(const struct lu_env *env, struct dt_device *dev,
- enum dt_txn_op);
};
struct dt_index_features {
/** index can be modified */
DT_IND_UPDATE = 1 << 2,
/** index supports records with non-unique (duplicate) keys */
- DT_IND_NONUNQ = 1 << 3
+ DT_IND_NONUNQ = 1 << 3,
+ /**
+ * index support fixed-size keys sorted with natural numerical way
+ * and is able to return left-side value if no exact value found
+ */
+ DT_IND_RANGE = 1 << 4,
};
/**
* names to fids).
*/
extern const struct dt_index_features dt_directory_features;
+extern const struct dt_index_features dt_otable_features;
+extern const struct dt_index_features dt_lfsck_features;
+
+/* index features supported by the accounting objects */
+extern const struct dt_index_features dt_acct_features;
+
+/* index features supported by the quota global indexes */
+extern const struct dt_index_features dt_quota_glb_features;
+
+/* index features supported by the quota slave indexes */
+extern const struct dt_index_features dt_quota_slv_features;
/**
* This is a general purpose dt allocation hint.
enum dt_format_type dof_type;
union {
struct dof_regular {
+ int striped;
} dof_reg;
struct dof_dir {
} dof_dir;
enum dt_format_type dt_mode_to_dft(__u32 mode);
-/** Version type. May differ in DMU and ldiskfs */
typedef __u64 dt_obj_version_t;
/**
*
* precondition: dt_object_exists(dt);
*/
+ int (*do_declare_attr_set)(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_attr *attr,
+ struct thandle *handle);
int (*do_attr_set)(const struct lu_env *env,
struct dt_object *dt,
const struct lu_attr *attr,
*
* precondition: dt_object_exists(dt);
*/
+ int (*do_declare_xattr_set)(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *handle);
int (*do_xattr_set)(const struct lu_env *env,
struct dt_object *dt, const struct lu_buf *buf,
const char *name, int fl, struct thandle *handle,
*
* precondition: dt_object_exists(dt);
*/
+ int (*do_declare_xattr_del)(const struct lu_env *env,
+ struct dt_object *dt,
+ const char *name, struct thandle *handle);
int (*do_xattr_del)(const struct lu_env *env,
struct dt_object *dt,
const char *name, struct thandle *handle,
void (*do_ah_init)(const struct lu_env *env,
struct dt_allocation_hint *ah,
struct dt_object *parent,
- umode_t child_mode);
+ struct dt_object *child,
+ cfs_umode_t child_mode);
/**
* Create new object on this device.
*
* precondition: !dt_object_exists(dt);
* postcondition: ergo(result == 0, dt_object_exists(dt));
*/
+ int (*do_declare_create)(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof,
+ struct thandle *th);
int (*do_create)(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct thandle *th);
/**
+ Destroy object on this device
+ * precondition: !dt_object_exists(dt);
+ * postcondition: ergo(result == 0, dt_object_exists(dt));
+ */
+ int (*do_declare_destroy)(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *th);
+ int (*do_destroy)(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+
+ /**
* Announce that this object is going to be used as an index. This
* operation check that object supports indexing operations and
* installs appropriate dt_index_operations vector on success.
* Add nlink of the object
* precondition: dt_object_exists(dt);
*/
- void (*do_ref_add)(const struct lu_env *env,
+ int (*do_declare_ref_add)(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th);
+ int (*do_ref_add)(const struct lu_env *env,
struct dt_object *dt, struct thandle *th);
/**
* Del nlink of the object
* precondition: dt_object_exists(dt);
*/
- void (*do_ref_del)(const struct lu_env *env,
+ int (*do_declare_ref_del)(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th);
+ int (*do_ref_del)(const struct lu_env *env,
struct dt_object *dt, struct thandle *th);
struct obd_capa *(*do_capa_get)(const struct lu_env *env,
struct lustre_capa *old,
__u64 opc);
int (*do_object_sync)(const struct lu_env *, struct dt_object *);
- dt_obj_version_t (*do_version_get)(const struct lu_env *env,
- struct dt_object *dt);
- void (*do_version_set)(const struct lu_env *env, struct dt_object *dt,
- dt_obj_version_t new_version);
/**
* Get object info of next level. Currently, only get inode from osd.
* This is only used by quota b=16542
*/
int (*do_data_get)(const struct lu_env *env, struct dt_object *dt,
void **data);
+
+ /**
+ * Lock object.
+ */
+ int (*do_object_lock)(const struct lu_env *env, struct dt_object *dt,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy);
};
/**
/**
* precondition: dt_object_exists(dt);
*/
+ ssize_t (*dbo_declare_write)(const struct lu_env *env,
+ struct dt_object *dt,
+ const loff_t size, loff_t pos,
+ struct thandle *handle);
ssize_t (*dbo_write)(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, loff_t *pos,
struct thandle *handle, struct lustre_capa *capa,
int ignore_quota);
+ /*
+ * methods for zero-copy IO
+ */
+
+ /*
+ * precondition: dt_object_exists(dt);
+ * returns:
+ * < 0 - error code
+ * = 0 - illegal
+ * > 0 - number of local buffers prepared
+ */
+ int (*dbo_bufs_get)(const struct lu_env *env, struct dt_object *dt,
+ loff_t pos, ssize_t len, struct niobuf_local *lb,
+ int rw, struct lustre_capa *capa);
+ /*
+ * precondition: dt_object_exists(dt);
+ */
+ int (*dbo_bufs_put)(const struct lu_env *env, struct dt_object *dt,
+ struct niobuf_local *lb, int nr);
+ /*
+ * precondition: dt_object_exists(dt);
+ */
+ int (*dbo_write_prep)(const struct lu_env *env, struct dt_object *dt,
+ struct niobuf_local *lb, int nr);
+ /*
+ * precondition: dt_object_exists(dt);
+ */
+ int (*dbo_declare_write_commit)(const struct lu_env *env,
+ struct dt_object *dt,
+ struct niobuf_local *,
+ int, struct thandle *);
+ /*
+ * precondition: dt_object_exists(dt);
+ */
+ int (*dbo_write_commit)(const struct lu_env *env, struct dt_object *dt,
+ struct niobuf_local *, int, struct thandle *);
+ /*
+ * precondition: dt_object_exists(dt);
+ */
+ int (*dbo_read_prep)(const struct lu_env *env, struct dt_object *dt,
+ struct niobuf_local *lnb, int nr);
+ int (*dbo_fiemap_get)(const struct lu_env *env, struct dt_object *dt,
+ struct ll_user_fiemap *fm);
+ /**
+ * Punch object's content
+ * precondition: regular object, not index
+ */
+ int (*dbo_declare_punch)(const struct lu_env *, struct dt_object *,
+ __u64, __u64, struct thandle *th);
+ int (*dbo_punch)(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end, struct thandle *th,
+ struct lustre_capa *capa);
};
/**
/**
* precondition: dt_object_exists(dt);
*/
+ int (*dio_declare_insert)(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_rec *rec,
+ const struct dt_key *key,
+ struct thandle *handle);
int (*dio_insert)(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec, const struct dt_key *key,
struct thandle *handle, struct lustre_capa *capa,
/**
* precondition: dt_object_exists(dt);
*/
+ int (*dio_declare_delete)(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_key *key,
+ struct thandle *handle);
int (*dio_delete)(const struct lu_env *env, struct dt_object *dt,
const struct dt_key *key, struct thandle *handle,
struct lustre_capa *capa);
*/
struct dt_it *(*init)(const struct lu_env *env,
struct dt_object *dt,
+ __u32 attr,
struct lustre_capa *capa);
void (*fini)(const struct lu_env *env,
struct dt_it *di);
const struct dt_it *di);
int (*key_size)(const struct lu_env *env,
const struct dt_it *di);
- struct dt_rec *(*rec)(const struct lu_env *env,
- const struct dt_it *di);
+ int (*rec)(const struct lu_env *env,
+ const struct dt_it *di,
+ struct dt_rec *rec,
+ __u32 attr);
__u64 (*store)(const struct lu_env *env,
const struct dt_it *di);
int (*load)(const struct lu_env *env,
const struct dt_it *di, __u64 hash);
+ int (*key_rec)(const struct lu_env *env,
+ const struct dt_it *di, void* key_rec);
} dio_it;
};
+enum dt_otable_it_valid {
+ DOIV_ERROR_HANDLE = 0x0001,
+};
+
+enum dt_otable_it_flags {
+ /* Exit when fail. */
+ DOIF_FAILOUT = 0x0001,
+
+ /* Reset iteration position to the device beginning. */
+ DOIF_RESET = 0x0002,
+
+ /* There is up layer component uses the iteration. */
+ DOIF_OUTUSED = 0x0004,
+};
+
+/* otable based iteration needs to use the common DT interation APIs.
+ * To initialize the iteration, it needs call dio_it::init() firstly.
+ * Here is how the otable based iteration should prepare arguments to
+ * call dt_it_ops::init().
+ *
+ * For otable based iteration, the 32-bits 'attr' for dt_it_ops::init()
+ * is composed of two parts:
+ * low 16-bits is for valid bits, high 16-bits is for flags bits. */
+#define DT_OTABLE_IT_FLAGS_SHIFT 16
+#define DT_OTABLE_IT_FLAGS_MASK 0xffff0000
+
struct dt_device {
struct lu_device dd_lu_dev;
const struct dt_device_operations *dd_ops;
* way, because callbacks are supposed to be added/deleted only during
* single-threaded start-up shut-down procedures.
*/
- struct list_head dd_txn_callbacks;
+ cfs_list_t dd_txn_callbacks;
};
int dt_device_init(struct dt_device *dev, struct lu_device_type *t);
const struct dt_index_operations *do_index_ops;
};
+/*
+ * In-core representation of per-device local object OID storage
+ */
+struct local_oid_storage {
+ /* all initialized llog systems on this node linked by this */
+ cfs_list_t los_list;
+
+ /* how many handle's reference this los has */
+ cfs_atomic_t los_refcount;
+ struct dt_device *los_dev;
+ struct dt_object *los_obj;
+
+ /* data used to generate new fids */
+ struct mutex los_id_lock;
+ __u64 los_seq;
+ __u32 los_last_oid;
+};
+
+static inline struct lu_device *dt2lu_dev(struct dt_device *d)
+{
+ return &d->dd_lu_dev;
+}
+
+static inline struct dt_object *lu2dt(struct lu_object *l)
+{
+ LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
+ return container_of0(l, struct dt_object, do_lu);
+}
+
int dt_object_init(struct dt_object *obj,
struct lu_object_header *h, struct lu_device *d);
return lu_object_exists(&dt->do_lu);
}
-struct txn_param {
- /** number of blocks this transaction will modify */
- unsigned int tp_credits;
- /** sync transaction is needed */
- __u32 tp_sync:1;
-};
+static inline int dt_object_remote(const struct dt_object *dt)
+{
+ return lu_object_remote(&dt->do_lu);
+}
-static inline void txn_param_init(struct txn_param *p, unsigned int credits)
+static inline struct dt_object *lu2dt_obj(struct lu_object *o)
{
- memset(p, 0, sizeof(*p));
- p->tp_credits = credits;
+ LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
+ return container_of0(o, struct dt_object, do_lu);
}
/**
* No RPC request should be issued inside transaction.
*/
struct thandle {
- /** the dt device on which the transactions are executed */
- struct dt_device *th_dev;
+ /** the dt device on which the transactions are executed */
+ struct dt_device *th_dev;
- /** context for this transaction, tag is LCT_TX_HANDLE */
- struct lu_context th_ctx;
+ /** context for this transaction, tag is LCT_TX_HANDLE */
+ struct lu_context th_ctx;
- /** the last operation result in this transaction.
- * this value is used in recovery */
- __s32 th_result;
+ /** additional tags (layers can add in declare) */
+ __u32 th_tags;
+
+ /** the last operation result in this transaction.
+ * this value is used in recovery */
+ __s32 th_result;
+
+ /** whether we need sync commit */
+ unsigned int th_sync:1;
+
+ /* local transation, no need to inform other layers */
+ unsigned int th_local:1;
+
+ /* In DNE, one transaction can be disassemblied into
+ * updates on several different MDTs, and these updates
+ * will be attached to th_remote_update_list per target.
+ * Only single thread will access the list, no need lock
+ */
+ cfs_list_t th_remote_update_list;
+ struct update_request *th_current_request;
};
/**
*/
struct dt_txn_callback {
int (*dtc_txn_start)(const struct lu_env *env,
- struct txn_param *param, void *cookie);
+ struct thandle *txn, void *cookie);
int (*dtc_txn_stop)(const struct lu_env *env,
struct thandle *txn, void *cookie);
- int (*dtc_txn_commit)(const struct lu_env *env,
- struct thandle *txn, void *cookie);
- void *dtc_cookie;
- __u32 dtc_tag;
- struct list_head dtc_linkage;
+ void (*dtc_txn_commit)(struct thandle *txn, void *cookie);
+ void *dtc_cookie;
+ __u32 dtc_tag;
+ cfs_list_t dtc_linkage;
};
void dt_txn_callback_add(struct dt_device *dev, struct dt_txn_callback *cb);
void dt_txn_callback_del(struct dt_device *dev, struct dt_txn_callback *cb);
int dt_txn_hook_start(const struct lu_env *env,
- struct dt_device *dev, struct txn_param *param);
+ struct dt_device *dev, struct thandle *txn);
int dt_txn_hook_stop(const struct lu_env *env, struct thandle *txn);
-int dt_txn_hook_commit(const struct lu_env *env, struct thandle *txn);
+void dt_txn_hook_commit(struct thandle *txn);
int dt_try_as_dir(const struct lu_env *env, struct dt_object *obj);
char *local, dt_entry_func_t entry_func,
void *data);
+struct dt_object *
+dt_store_resolve(const struct lu_env *env, struct dt_device *dt,
+ const char *path, struct lu_fid *fid);
+
struct dt_object *dt_store_open(const struct lu_env *env,
struct dt_device *dt,
const char *dirname,
const char *filename,
struct lu_fid *fid);
-struct dt_object *dt_locate(const struct lu_env *env,
- struct dt_device *dev,
- const struct lu_fid *fid);
+struct dt_object *dt_find_or_create(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object_format *dof,
+ struct lu_attr *attr);
+
+struct dt_object *dt_locate_at(const struct lu_env *env,
+ struct dt_device *dev,
+ const struct lu_fid *fid,
+ struct lu_device *top_dev);
+static inline struct dt_object *
+dt_locate(const struct lu_env *env, struct dt_device *dev,
+ const struct lu_fid *fid)
+{
+ return dt_locate_at(env, dev, fid, dev->dd_lu_dev.ld_site->ls_top_dev);
+}
+
+
+int local_oid_storage_init(const struct lu_env *env, struct dt_device *dev,
+ const struct lu_fid *first_fid,
+ struct local_oid_storage **los);
+void local_oid_storage_fini(const struct lu_env *env,
+ struct local_oid_storage *los);
+int local_object_fid_generate(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct lu_fid *fid);
+int local_object_declare_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *o,
+ struct lu_attr *attr,
+ struct dt_object_format *dof,
+ struct thandle *th);
+int local_object_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *o,
+ struct lu_attr *attr, struct dt_object_format *dof,
+ struct thandle *th);
+struct dt_object *local_file_find_or_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *parent,
+ const char *name, __u32 mode);
+struct dt_object *local_file_find_or_create_with_fid(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object *parent,
+ const char *name,
+ __u32 mode);
+struct dt_object *
+local_index_find_or_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *parent,
+ const char *name, __u32 mode,
+ const struct dt_index_features *ft);
+struct dt_object *
+local_index_find_or_create_with_fid(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object *parent,
+ const char *name, __u32 mode,
+ const struct dt_index_features *ft);
+int local_object_unlink(const struct lu_env *env, struct dt_device *dt,
+ struct dt_object *parent, const char *name);
-static inline dt_obj_version_t do_version_get(const struct lu_env *env,
- struct dt_object *o)
+static inline int dt_object_lock(const struct lu_env *env,
+ struct dt_object *o, struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy)
{
- LASSERT(o->do_ops->do_version_get);
- return o->do_ops->do_version_get(env, o);
+ LASSERT(o);
+ LASSERT(o->do_ops);
+ LASSERT(o->do_ops->do_object_lock);
+ return o->do_ops->do_object_lock(env, o, lh, einfo, policy);
}
-static inline void do_version_set(const struct lu_env *env,
- struct dt_object *o, dt_obj_version_t v)
+int dt_lookup_dir(const struct lu_env *env, struct dt_object *dir,
+ const char *name, struct lu_fid *fid);
+
+static inline int dt_object_sync(const struct lu_env *env,
+ struct dt_object *o)
{
- LASSERT(o->do_ops->do_version_set);
- return o->do_ops->do_version_set(env, o, v);
+ LASSERT(o);
+ LASSERT(o->do_ops);
+ LASSERT(o->do_ops->do_object_sync);
+ return o->do_ops->do_object_sync(env, o);
}
+int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
+ struct thandle *th);
+void dt_version_set(const struct lu_env *env, struct dt_object *o,
+ dt_obj_version_t version, struct thandle *th);
+dt_obj_version_t dt_version_get(const struct lu_env *env, struct dt_object *o);
+
+
+int dt_read(const struct lu_env *env, struct dt_object *dt,
+ struct lu_buf *buf, loff_t *pos);
int dt_record_read(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *buf, loff_t *pos);
int dt_record_write(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, loff_t *pos, struct thandle *th);
+typedef int (*dt_index_page_build_t)(const struct lu_env *env,
+ union lu_page *lp, int nob,
+ const struct dt_it_ops *iops,
+ struct dt_it *it, __u32 attr, void *arg);
+int dt_index_walk(const struct lu_env *env, struct dt_object *obj,
+ const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
+ void *arg);
+int dt_index_read(const struct lu_env *env, struct dt_device *dev,
+ struct idx_info *ii, const struct lu_rdpg *rdpg);
+
+static inline struct thandle *dt_trans_create(const struct lu_env *env,
+ struct dt_device *d)
+{
+ LASSERT(d->dd_ops->dt_trans_create);
+ return d->dd_ops->dt_trans_create(env, d);
+}
+static inline int dt_trans_start(const struct lu_env *env,
+ struct dt_device *d, struct thandle *th)
+{
+ LASSERT(d->dd_ops->dt_trans_start);
+ return d->dd_ops->dt_trans_start(env, d, th);
+}
-static inline struct thandle *dt_trans_start(const struct lu_env *env,
- struct dt_device *d,
- struct txn_param *p)
+/* for this transaction hooks shouldn't be called */
+static inline int dt_trans_start_local(const struct lu_env *env,
+ struct dt_device *d, struct thandle *th)
{
LASSERT(d->dd_ops->dt_trans_start);
- return d->dd_ops->dt_trans_start(env, d, p);
+ th->th_local = 1;
+ return d->dd_ops->dt_trans_start(env, d, th);
}
-static inline void dt_trans_stop(const struct lu_env *env,
- struct dt_device *d,
- struct thandle *th)
+static inline int dt_trans_stop(const struct lu_env *env,
+ struct dt_device *d, struct thandle *th)
{
LASSERT(d->dd_ops->dt_trans_stop);
return d->dd_ops->dt_trans_stop(env, th);
}
+
+static inline int dt_trans_cb_add(struct thandle *th,
+ struct dt_txn_commit_cb *dcb)
+{
+ LASSERT(th->th_dev->dd_ops->dt_trans_cb_add);
+ dcb->dcb_magic = TRANS_COMMIT_CB_MAGIC;
+ return th->th_dev->dd_ops->dt_trans_cb_add(th, dcb);
+}
/** @} dt */
+
+
+static inline int dt_declare_record_write(const struct lu_env *env,
+ struct dt_object *dt,
+ int size, loff_t pos,
+ struct thandle *th)
+{
+ int rc;
+
+ LASSERTF(dt != NULL, "dt is NULL when we want to write record\n");
+ LASSERT(th != NULL);
+ LASSERT(dt->do_body_ops);
+ LASSERT(dt->do_body_ops->dbo_declare_write);
+ rc = dt->do_body_ops->dbo_declare_write(env, dt, size, pos, th);
+ return rc;
+}
+
+static inline int dt_declare_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_create);
+ return dt->do_ops->do_declare_create(env, dt, attr, hint, dof, th);
+}
+
+static inline int dt_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_create);
+ return dt->do_ops->do_create(env, dt, attr, hint, dof, th);
+}
+
+static inline int dt_declare_destroy(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_destroy);
+ return dt->do_ops->do_declare_destroy(env, dt, th);
+}
+
+static inline int dt_destroy(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_destroy);
+ return dt->do_ops->do_destroy(env, dt, th);
+}
+
+static inline void dt_read_lock(const struct lu_env *env,
+ struct dt_object *dt,
+ unsigned role)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_read_lock);
+ dt->do_ops->do_read_lock(env, dt, role);
+}
+
+static inline void dt_write_lock(const struct lu_env *env,
+ struct dt_object *dt,
+ unsigned role)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_write_lock);
+ dt->do_ops->do_write_lock(env, dt, role);
+}
+
+static inline void dt_read_unlock(const struct lu_env *env,
+ struct dt_object *dt)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_read_unlock);
+ dt->do_ops->do_read_unlock(env, dt);
+}
+
+static inline void dt_write_unlock(const struct lu_env *env,
+ struct dt_object *dt)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_write_unlock);
+ dt->do_ops->do_write_unlock(env, dt);
+}
+
+static inline int dt_write_locked(const struct lu_env *env,
+ struct dt_object *dt)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_write_locked);
+ return dt->do_ops->do_write_locked(env, dt);
+}
+
+static inline int dt_attr_get(const struct lu_env *env, struct dt_object *dt,
+ struct lu_attr *la, void *arg)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_attr_get);
+ return dt->do_ops->do_attr_get(env, dt, la, arg);
+}
+
+static inline int dt_declare_attr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_attr *la,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_attr_set);
+ return dt->do_ops->do_declare_attr_set(env, dt, la, th);
+}
+
+static inline int dt_attr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_attr *la, struct thandle *th,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_attr_set);
+ return dt->do_ops->do_attr_set(env, dt, la, th, capa);
+}
+
+static inline int dt_declare_ref_add(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_ref_add);
+ return dt->do_ops->do_declare_ref_add(env, dt, th);
+}
+
+static inline int dt_ref_add(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_ref_add);
+ return dt->do_ops->do_ref_add(env, dt, th);
+}
+
+static inline int dt_declare_ref_del(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_ref_del);
+ return dt->do_ops->do_declare_ref_del(env, dt, th);
+}
+
+static inline int dt_ref_del(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_ref_del);
+ return dt->do_ops->do_ref_del(env, dt, th);
+}
+
+static inline struct obd_capa *dt_capa_get(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lustre_capa *old, __u64 opc)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_ref_del);
+ return dt->do_ops->do_capa_get(env, dt, old, opc);
+}
+
+static inline int dt_bufs_get(const struct lu_env *env, struct dt_object *d,
+ struct niobuf_remote *rnb,
+ struct niobuf_local *lnb, int rw,
+ struct lustre_capa *capa)
+{
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_bufs_get);
+ return d->do_body_ops->dbo_bufs_get(env, d, rnb->offset,
+ rnb->len, lnb, rw, capa);
+}
+
+static inline int dt_bufs_put(const struct lu_env *env, struct dt_object *d,
+ struct niobuf_local *lnb, int n)
+{
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_bufs_put);
+ return d->do_body_ops->dbo_bufs_put(env, d, lnb, n);
+}
+
+static inline int dt_write_prep(const struct lu_env *env, struct dt_object *d,
+ struct niobuf_local *lnb, int n)
+{
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_write_prep);
+ return d->do_body_ops->dbo_write_prep(env, d, lnb, n);
+}
+
+static inline int dt_declare_write_commit(const struct lu_env *env,
+ struct dt_object *d,
+ struct niobuf_local *lnb,
+ int n, struct thandle *th)
+{
+ LASSERTF(d != NULL, "dt is NULL when we want to declare write\n");
+ LASSERT(th != NULL);
+ return d->do_body_ops->dbo_declare_write_commit(env, d, lnb, n, th);
+}
+
+
+static inline int dt_write_commit(const struct lu_env *env,
+ struct dt_object *d, struct niobuf_local *lnb,
+ int n, struct thandle *th)
+{
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_write_commit);
+ return d->do_body_ops->dbo_write_commit(env, d, lnb, n, th);
+}
+
+static inline int dt_read_prep(const struct lu_env *env, struct dt_object *d,
+ struct niobuf_local *lnb, int n)
+{
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_read_prep);
+ return d->do_body_ops->dbo_read_prep(env, d, lnb, n);
+}
+
+static inline int dt_declare_punch(const struct lu_env *env,
+ struct dt_object *dt, __u64 start,
+ __u64 end, struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_body_ops);
+ LASSERT(dt->do_body_ops->dbo_declare_punch);
+ return dt->do_body_ops->dbo_declare_punch(env, dt, start, end, th);
+}
+
+static inline int dt_punch(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end, struct thandle *th,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_body_ops);
+ LASSERT(dt->do_body_ops->dbo_punch);
+ return dt->do_body_ops->dbo_punch(env, dt, start, end, th, capa);
+}
+
+static inline int dt_fiemap_get(const struct lu_env *env, struct dt_object *d,
+ struct ll_user_fiemap *fm)
+{
+ LASSERT(d);
+ if (d->do_body_ops == NULL)
+ return -EPROTO;
+ if (d->do_body_ops->dbo_fiemap_get == NULL)
+ return -EOPNOTSUPP;
+ return d->do_body_ops->dbo_fiemap_get(env, d, fm);
+}
+
+static inline int dt_statfs(const struct lu_env *env, struct dt_device *dev,
+ struct obd_statfs *osfs)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_statfs);
+ return dev->dd_ops->dt_statfs(env, dev, osfs);
+}
+
+static inline int dt_root_get(const struct lu_env *env, struct dt_device *dev,
+ struct lu_fid *f)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_root_get);
+ return dev->dd_ops->dt_root_get(env, dev, f);
+}
+
+static inline void dt_conf_get(const struct lu_env *env,
+ const struct dt_device *dev,
+ struct dt_device_param *param)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_conf_get);
+ return dev->dd_ops->dt_conf_get(env, dev, param);
+}
+
+static inline int dt_sync(const struct lu_env *env, struct dt_device *dev)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_sync);
+ return dev->dd_ops->dt_sync(env, dev);
+}
+
+static inline int dt_ro(const struct lu_env *env, struct dt_device *dev)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_ro);
+ return dev->dd_ops->dt_ro(env, dev);
+}
+
+static inline int dt_declare_insert(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_rec *rec,
+ const struct dt_key *key,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_index_ops);
+ LASSERT(dt->do_index_ops->dio_declare_insert);
+ return dt->do_index_ops->dio_declare_insert(env, dt, rec, key, th);
+}
+
+static inline int dt_insert(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_rec *rec,
+ const struct dt_key *key,
+ struct thandle *th,
+ struct lustre_capa *capa,
+ int noquota)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_index_ops);
+ LASSERT(dt->do_index_ops->dio_insert);
+ return dt->do_index_ops->dio_insert(env, dt, rec, key, th,
+ capa, noquota);
+}
+
+static inline int dt_declare_xattr_del(const struct lu_env *env,
+ struct dt_object *dt,
+ const char *name,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_xattr_del);
+ return dt->do_ops->do_declare_xattr_del(env, dt, name, th);
+}
+
+static inline int dt_xattr_del(const struct lu_env *env,
+ struct dt_object *dt, const char *name,
+ struct thandle *th,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_xattr_del);
+ return dt->do_ops->do_xattr_del(env, dt, name, th, capa);
+}
+
+static inline int dt_declare_xattr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_declare_xattr_set);
+ return dt->do_ops->do_declare_xattr_set(env, dt, buf, name, fl, th);
+}
+
+static inline int dt_xattr_set(const struct lu_env *env,
+ struct dt_object *dt, const struct lu_buf *buf,
+ const char *name, int fl, struct thandle *th,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_xattr_set);
+ return dt->do_ops->do_xattr_set(env, dt, buf, name, fl, th, capa);
+}
+
+static inline int dt_xattr_get(const struct lu_env *env,
+ struct dt_object *dt, struct lu_buf *buf,
+ const char *name, struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_xattr_get);
+ return dt->do_ops->do_xattr_get(env, dt, buf, name, capa);
+}
+
+static inline int dt_xattr_list(const struct lu_env *env,
+ struct dt_object *dt, struct lu_buf *buf,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_ops);
+ LASSERT(dt->do_ops->do_xattr_list);
+ return dt->do_ops->do_xattr_list(env, dt, buf, capa);
+}
+
+static inline int dt_declare_delete(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_key *key,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_index_ops);
+ LASSERT(dt->do_index_ops->dio_declare_delete);
+ return dt->do_index_ops->dio_declare_delete(env, dt, key, th);
+}
+
+static inline int dt_delete(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct dt_key *key,
+ struct thandle *th,
+ struct lustre_capa *capa)
+{
+ LASSERT(dt);
+ LASSERT(dt->do_index_ops);
+ LASSERT(dt->do_index_ops->dio_delete);
+ return dt->do_index_ops->dio_delete(env, dt, key, th, capa);
+}
+
+static inline int dt_commit_async(const struct lu_env *env,
+ struct dt_device *dev)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_commit_async);
+ return dev->dd_ops->dt_commit_async(env, dev);
+}
+
+static inline int dt_init_capa_ctxt(const struct lu_env *env,
+ struct dt_device *dev,
+ int mode, unsigned long timeout,
+ __u32 alg, struct lustre_capa_key *keys)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_init_capa_ctxt);
+ return dev->dd_ops->dt_init_capa_ctxt(env, dev, mode,
+ timeout, alg, keys);
+}
+
+static inline int dt_lookup(const struct lu_env *env,
+ struct dt_object *dt,
+ struct dt_rec *rec,
+ const struct dt_key *key,
+ struct lustre_capa *capa)
+{
+ int ret;
+
+ LASSERT(dt);
+ LASSERT(dt->do_index_ops);
+ LASSERT(dt->do_index_ops->dio_lookup);
+
+ ret = dt->do_index_ops->dio_lookup(env, dt, rec, key, capa);
+ if (ret > 0)
+ ret = 0;
+ else if (ret == 0)
+ ret = -ENOENT;
+ return ret;
+}
+
+#define LU221_BAD_TIME (0x80000000U + 24 * 3600)
+
+struct dt_find_hint {
+ struct lu_fid *dfh_fid;
+ struct dt_device *dfh_dt;
+ struct dt_object *dfh_o;
+};
+
+struct dt_thread_info {
+ char dti_buf[DT_MAX_PATH];
+ struct dt_find_hint dti_dfh;
+ struct lu_attr dti_attr;
+ struct lu_fid dti_fid;
+ struct dt_object_format dti_dof;
+ struct lustre_mdt_attrs dti_lma;
+ struct lu_buf dti_lb;
+ loff_t dti_off;
+};
+
+extern struct lu_context_key dt_key;
+
+static inline struct dt_thread_info *dt_info(const struct lu_env *env)
+{
+ struct dt_thread_info *dti;
+
+ dti = lu_context_key_get(&env->le_ctx, &dt_key);
+ LASSERT(dti);
+ return dti;
+}
+
+int dt_global_init(void);
+void dt_global_fini(void);
+
+# ifdef LPROCFS
+int lprocfs_dt_rd_blksize(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytestotal(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytesfree(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytesavail(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+int lprocfs_dt_rd_filestotal(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+int lprocfs_dt_rd_filesfree(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+# endif /* LPROCFS */
+
#endif /* __LUSTRE_DT_OBJECT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff