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37 #ifndef _LMV_INTERNAL_H_
38 #define _LMV_INTERNAL_H_
40 #include <lustre/lustre_idl.h>
43 #define LMV_MAX_TGT_COUNT 128
45 #define lmv_init_lock(lmv) mutex_lock(&lmv->init_mutex);
46 #define lmv_init_unlock(lmv) mutex_unlock(&lmv->init_mutex);
48 #define LL_IT2STR(it) \
49 ((it) ? ldlm_it2str((it)->it_op) : "0")
51 int lmv_check_connect(struct obd_device *obd);
53 int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
54 void *lmm, int lmmsize, struct lookup_intent *it,
55 int flags, struct ptlrpc_request **reqp,
56 ldlm_blocking_callback cb_blocking,
57 __u64 extra_lock_flags);
59 int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
60 void *lmm, int lmmsize, struct lookup_intent *it,
61 int flags, struct ptlrpc_request **reqp,
62 ldlm_blocking_callback cb_blocking,
63 __u64 extra_lock_flags);
65 int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
66 void *lmm, int lmmsize, struct lookup_intent *it,
67 int flags, struct ptlrpc_request **reqp,
68 ldlm_blocking_callback cb_blocking,
69 __u64 extra_lock_flags);
71 int lmv_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
73 int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid,
75 int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid,
77 int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
78 struct md_op_data *op_data);
80 static inline struct lmv_stripe_md *lmv_get_mea(struct ptlrpc_request *req)
82 struct mdt_body *body;
83 struct lmv_stripe_md *mea;
87 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
89 if (!body || !S_ISDIR(body->mode) || !body->eadatasize)
92 mea = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD,
96 if (mea->mea_count == 0)
98 if( mea->mea_magic != MEA_MAGIC_LAST_CHAR &&
99 mea->mea_magic != MEA_MAGIC_ALL_CHARS &&
100 mea->mea_magic != MEA_MAGIC_HASH_SEGMENT)
106 static inline int lmv_get_easize(struct lmv_obd *lmv)
108 return sizeof(struct lmv_stripe_md) +
109 lmv->desc.ld_tgt_count *
110 sizeof(struct lu_fid);
113 static inline struct lmv_tgt_desc *
114 lmv_get_target(struct lmv_obd *lmv, mdsno_t mds)
116 return &lmv->tgts[mds];
119 static inline struct lmv_tgt_desc *
120 lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
125 if (lmv->desc.ld_tgt_count > 1) {
126 rc = lmv_fld_lookup(lmv, fid, &mds);
131 return lmv_get_target(lmv, mds);
135 *lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
139 void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars);
141 static inline void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars)
143 memset(lvars, 0, sizeof(*lvars));
146 extern struct file_operations lmv_proc_target_fops;