-/* -*- 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.
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
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,
* 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;
+ cfs_list_t dcb_linkage;
+ dt_cb_t dcb_func;
+ __u32 dcb_magic;
+ char dcb_name[MAX_COMMIT_CB_STR_LEN];
};
/**
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 {
/** 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;
void (*do_ah_init)(const struct lu_env *env,
struct dt_allocation_hint *ah,
struct dt_object *parent,
+ struct dt_object *child,
cfs_umode_t child_mode);
/**
* Create new object on this device.
struct lustre_capa *capa);
};
+struct dt_lock_operations {
+ int (*do_object_lock)(const struct lu_env *env, struct dt_object *dt,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy);
+};
/**
* Incomplete type of index record.
*/
} 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;
const struct dt_object_operations *do_ops;
const struct dt_body_operations *do_body_ops;
const struct dt_index_operations *do_index_ops;
+ const struct dt_lock_operations *do_lock_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 dt_object *lu2dt(struct lu_object *l)
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
* 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;
- /** additional tags (layers can add in declare) */
- __u32 th_tags;
+ /** 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;
+ /** 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;
+ /** 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;
+ /** whether we need sync commit */
+ unsigned int th_sync:1;
- /* local transation, no need to inform other layers */
- int th_local: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;
};
/**
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);
+
+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_lock_ops);
+ LASSERT(o->do_lock_ops->do_object_lock);
+ return o->do_lock_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)
+{
+ 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);
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)
}
static inline int dt_trans_cb_add(struct thandle *th,
- struct dt_txn_commit_cb *dcb)
+ struct dt_txn_commit_cb *dcb)
{
- LASSERT(th->th_dev->dd_ops->dt_trans_cb_add);
- return th->th_dev->dd_ops->dt_trans_cb_add(th, 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 */
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;
}
LASSERT(d);
if (d->do_body_ops == NULL)
return -EPROTO;
- LASSERT(d->do_body_ops->dbo_fiemap_get);
+ if (d->do_body_ops->dbo_fiemap_get == NULL)
+ return -EOPNOTSUPP;
return d->do_body_ops->dbo_fiemap_get(env, d, fm);
}
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,
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);
+
#endif /* __LUSTRE_DT_OBJECT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff