/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is included * in the LICENSE file that accompanied this code). * * 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. * * GPL HEADER END */ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, 2012, Whamcloud, Inc. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef __LUSTRE_DT_OBJECT_H #define __LUSTRE_DT_OBJECT_H /** \defgroup dt dt * Sub-class of lu_object with methods common for "data" objects in OST stack. * * Data objects behave like regular files: you can read/write them, get and * set their attributes. Implementation of dt interface is supposed to * implement some form of garbage collection, normally reference counting * (nlink) based one. * * Examples: osd (lustre/osd) is an implementation of dt interface. * @{ */ /* * super-class definitions. */ #include #include struct seq_file; struct proc_dir_entry; struct lustre_cfg; struct thandle; struct dt_device; struct dt_object; struct dt_index_features; struct dt_quota_ctxt; struct niobuf_local; struct niobuf_remote; 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; }; /** * Per-transaction commit callback function */ 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]; }; /** * Operations on dt device. */ struct dt_device_operations { /** * Return device-wide statistics. */ int (*dt_statfs)(const struct lu_env *env, 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. */ int (*dt_trans_start)(const struct lu_env *env, struct dt_device *dev, struct thandle *th); /** * Finish previously started transaction. */ 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, struct dt_device *dev, struct lu_fid *f); /** * Return device configuration data. */ void (*dt_conf_get)(const struct lu_env *env, const struct dt_device *dev, struct dt_device_param *param); /** * handling device state, mostly for tests */ int (*dt_sync)(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 * * \param env environment * \param dev dt_device to start commit on * * \return 0 success, negative value if error */ int (*dt_commit_async)(const struct lu_env *env, struct dt_device *dev); /** * Initialize capability context. */ 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); /** * Initialize quota context. */ void (*dt_init_quota_ctxt)(const struct lu_env *env, struct dt_device *dev, struct dt_quota_ctxt *ctxt, void *data); }; struct dt_index_features { /** required feature flags from enum dt_index_flags */ __u32 dif_flags; /** minimal required key size */ size_t dif_keysize_min; /** maximal required key size, 0 if no limit */ size_t dif_keysize_max; /** minimal required record size */ size_t dif_recsize_min; /** maximal required record size, 0 if no limit */ size_t dif_recsize_max; /** pointer size for record */ size_t dif_ptrsize; }; enum dt_index_flags { /** index supports variable sized keys */ DT_IND_VARKEY = 1 << 0, /** index supports variable sized records */ DT_IND_VARREC = 1 << 1, /** index can be modified */ DT_IND_UPDATE = 1 << 2, /** index supports records with non-unique (duplicate) keys */ 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, }; /** * Features, required from index to support file system directories (mapping * names to fids). */ extern const struct dt_index_features dt_directory_features; extern const struct dt_index_features dt_otable_features; /* index features supported by the accounting objects */ extern const struct dt_index_features dt_acct_features; /** * This is a general purpose dt allocation hint. * It now contains the parent object. * It can contain any allocation hint in the future. */ struct dt_allocation_hint { struct dt_object *dah_parent; __u32 dah_mode; }; /** * object type specifier. */ enum dt_format_type { DFT_REGULAR, DFT_DIR, /** for mknod */ DFT_NODE, /** for special index */ DFT_INDEX, /** for symbolic link */ DFT_SYM, }; /** * object format specifier. */ struct dt_object_format { /** type for dt object */ enum dt_format_type dof_type; union { struct dof_regular { } dof_reg; struct dof_dir { } dof_dir; struct dof_node { } dof_node; /** * special index need feature as parameter to create * special idx */ struct dof_index { const struct dt_index_features *di_feat; } dof_idx; } u; }; enum dt_format_type dt_mode_to_dft(__u32 mode); typedef __u64 dt_obj_version_t; /** * Per-dt-object operations. */ struct dt_object_operations { void (*do_read_lock)(const struct lu_env *env, struct dt_object *dt, unsigned role); void (*do_write_lock)(const struct lu_env *env, struct dt_object *dt, unsigned role); void (*do_read_unlock)(const struct lu_env *env, struct dt_object *dt); void (*do_write_unlock)(const struct lu_env *env, struct dt_object *dt); int (*do_write_locked)(const struct lu_env *env, struct dt_object *dt); /** * Note: following ->do_{x,}attr_{set,get}() operations are very * similar to ->moo_{x,}attr_{set,get}() operations in struct * md_object_operations (see md_object.h). These operations are not in * lu_object_operations, because ->do_{x,}attr_set() versions take * transaction handle as an argument (this transaction is started by * caller). We might factor ->do_{x,}attr_get() into * lu_object_operations, but that would break existing symmetry. */ /** * Return standard attributes. * * precondition: lu_object_exists(&dt->do_lu); */ int (*do_attr_get)(const struct lu_env *env, struct dt_object *dt, struct lu_attr *attr, struct lustre_capa *capa); /** * Set standard attributes. * * 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, struct thandle *handle, struct lustre_capa *capa); /** * Return a value of an extended attribute. * * precondition: dt_object_exists(dt); */ int (*do_xattr_get)(const struct lu_env *env, struct dt_object *dt, struct lu_buf *buf, const char *name, struct lustre_capa *capa); /** * Set value of an extended attribute. * * \a fl - flags from enum lu_xattr_flags * * 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, struct lustre_capa *capa); /** * Delete existing extended attribute. * * 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, struct lustre_capa *capa); /** * Place list of existing extended attributes into \a buf (which has * length len). * * precondition: dt_object_exists(dt); */ int (*do_xattr_list)(const struct lu_env *env, struct dt_object *dt, struct lu_buf *buf, struct lustre_capa *capa); /** * Init allocation hint using parent object and child mode. * (1) The \a parent might be NULL if this is a partial creation for * remote object. * (2) The type of child is in \a child_mode. * (3) The result hint is stored in \a ah; */ void (*do_ah_init)(const struct lu_env *env, struct dt_allocation_hint *ah, struct dt_object *parent, 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 dt_object_format *dof, 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. * * Also probes for features. Operation is successful if all required * features are supported. */ int (*do_index_try)(const struct lu_env *env, struct dt_object *dt, const struct dt_index_features *feat); /** * Add nlink of the object * precondition: dt_object_exists(dt); */ 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); */ 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 dt_object *dt, struct lustre_capa *old, __u64 opc); int (*do_object_sync)(const struct lu_env *, struct dt_object *); /** * Get object info of next level. Currently, only get inode from osd. * This is only used by quota b=16542 * precondition: dt_object_exists(dt); */ int (*do_data_get)(const struct lu_env *env, struct dt_object *dt, void **data); }; /** * Per-dt-object operations on "file body". */ struct dt_body_operations { /** * precondition: dt_object_exists(dt); */ ssize_t (*dbo_read)(const struct lu_env *env, struct dt_object *dt, struct lu_buf *buf, loff_t *pos, struct lustre_capa *capa); /** * 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 (*do_declare_punch)(const struct lu_env *, struct dt_object *, __u64, __u64, struct thandle *th); int (*do_punch)(const struct lu_env *env, struct dt_object *dt, __u64 start, __u64 end, struct thandle *th, struct lustre_capa *capa); }; /** * Incomplete type of index record. */ struct dt_rec; /** * Incomplete type of index key. */ struct dt_key; /** * Incomplete type of dt iterator. */ struct dt_it; /** * Per-dt-object operations on object as index. */ struct dt_index_operations { /** * precondition: dt_object_exists(dt); */ int (*dio_lookup)(const struct lu_env *env, struct dt_object *dt, struct dt_rec *rec, const struct dt_key *key, 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, int ignore_quota); /** * 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); /** * Iterator interface */ struct dt_it_ops { /** * Allocate and initialize new iterator. * * precondition: dt_object_exists(dt); */ 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); int (*get)(const struct lu_env *env, struct dt_it *di, const struct dt_key *key); void (*put)(const struct lu_env *env, struct dt_it *di); int (*next)(const struct lu_env *env, struct dt_it *di); struct dt_key *(*key)(const struct lu_env *env, const struct dt_it *di); int (*key_size)(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; /** * List of dt_txn_callback (see below). This is not protected in any * way, because callbacks are supposed to be added/deleted only during * single-threaded start-up shut-down procedures. */ cfs_list_t dd_txn_callbacks; }; int dt_device_init(struct dt_device *dev, struct lu_device_type *t); void dt_device_fini(struct dt_device *dev); static inline int lu_device_is_dt(const struct lu_device *d) { return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_DT); } static inline struct dt_device * lu2dt_dev(struct lu_device *l) { LASSERT(lu_device_is_dt(l)); return container_of0(l, struct dt_device, dd_lu_dev); } struct dt_object { struct lu_object do_lu; const struct dt_object_operations *do_ops; const struct dt_body_operations *do_body_ops; const struct dt_index_operations *do_index_ops; }; 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); void dt_object_fini(struct dt_object *obj); static inline int dt_object_exists(const struct dt_object *dt) { return lu_object_exists(&dt->do_lu); } /** * This is the general purpose transaction handle. * 1. Transaction Life Cycle * This transaction handle is allocated upon starting a new transaction, * and deallocated after this transaction is committed. * 2. Transaction Nesting * We do _NOT_ support nested transaction. So, every thread should only * have one active transaction, and a transaction only belongs to one * thread. Due to this, transaction handle need no reference count. * 3. Transaction & dt_object locking * dt_object locks should be taken inside transaction. * 4. Transaction & RPC * No RPC request should be issued inside transaction. */ struct thandle { /** the dt device on which the transactions are executed */ struct dt_device *th_dev; /** additional tags (layers can add in declare) */ __u32 th_tags; /** 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; /** whether we need sync commit */ int th_sync:1; /* local transation, no need to inform other layers */ int th_local:1; }; /** * Transaction call-backs. * * These are invoked by osd (or underlying transaction engine) when * transaction changes state. * * Call-backs are used by upper layers to modify transaction parameters and to * perform some actions on for each transaction state transition. Typical * example is mdt registering call-back to write into last-received file * before each transaction commit. */ struct dt_txn_callback { int (*dtc_txn_start)(const struct lu_env *env, struct thandle *txn, void *cookie); int (*dtc_txn_stop)(const struct lu_env *env, struct thandle *txn, void *cookie); 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 thandle *txn); int dt_txn_hook_stop(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); /** * Callback function used for parsing path. * \see llo_store_resolve */ typedef int (*dt_entry_func_t)(const struct lu_env *env, const char *name, void *pvt); #define DT_MAX_PATH 1024 int dt_path_parser(const struct lu_env *env, char *local, dt_entry_func_t entry_func, void *data); 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_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(const struct lu_env *env, struct dt_device *dev, const struct lu_fid *fid); static inline int dt_object_sync(const struct lu_env *env, struct dt_object *o) { 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); 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); } /* 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); th->th_local = 1; return d->dd_ops->dt_trans_start(env, d, 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->do_declare_punch); return dt->do_body_ops->do_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->do_punch); return dt->do_body_ops->do_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; LASSERT(d->do_body_ops->dbo_fiemap_get); 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_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) #endif /* __LUSTRE_DT_OBJECT_H */