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-rw-r--r--drivers/staging/lustre/lustre/include/dt_object.h1496
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diff --git a/drivers/staging/lustre/lustre/include/dt_object.h b/drivers/staging/lustre/lustre/include/dt_object.h
deleted file mode 100644
index abae31b41e74..000000000000
--- a/drivers/staging/lustre/lustre/include/dt_object.h
+++ /dev/null
@@ -1,1496 +0,0 @@
-/*
- * 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, Intel Corporation.
- */
-/*
- * 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 "lu_object.h"
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-struct seq_file;
-struct lustre_cfg;
-
-struct thandle;
-struct dt_device;
-struct dt_object;
-struct dt_index_features;
-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;
-};
-
-/**
- * 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 {
- struct list_head 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);
-};
-
-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;
-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.
- * 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 {
- int striped;
- } 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,
- struct dt_object *child,
- 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 *env, struct dt_object *obj,
- __u64 start, __u64 end);
- /**
- * 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);
-
- /**
- * 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);
-};
-
-/**
- * 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 (*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);
-};
-
-/**
- * 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.
- */
- struct list_head 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;
-};
-
-/*
- * In-core representation of per-device local object OID storage
- */
-struct local_oid_storage {
- /* all initialized llog systems on this node linked by this */
- struct list_head los_list;
-
- /* how many handle's reference this los has */
- 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 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);
-}
-
-static inline int dt_object_remote(const struct dt_object *dt)
-{
- return lu_object_remote(&dt->do_lu);
-}
-
-static inline struct dt_object *lu2dt_obj(struct lu_object *o)
-{
- LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
- return container_of0(o, struct dt_object, 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;
-
- /** context for this transaction, tag is LCT_TX_HANDLE */
- struct lu_context th_ctx;
-
- /** 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
- */
- struct list_head th_remote_update_list;
- struct update_request *th_current_request;
-};
-
-/**
- * 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;
- struct list_head 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_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_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 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);
- LASSERT(o->do_ops);
- LASSERT(o->do_ops->do_object_lock);
- return o->do_ops->do_object_lock(env, o, lh, einfo, policy);
-}
-
-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,
- __u64 start, __u64 end)
-{
- LASSERT(o);
- LASSERT(o->do_ops);
- LASSERT(o->do_ops->do_object_sync);
- return o->do_ops->do_object_sync(env, o, start, end);
-}
-
-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);
-}
-
-/* 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->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);
-
-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 /* __LUSTRE_DT_OBJECT_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.