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37 #ifndef _LMV_INTERNAL_H_
38 #define _LMV_INTERNAL_H_
40 #include "../include/lustre/lustre_idl.h"
41 #include "../include/obd.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_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds);
60 int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds);
61 int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
62 struct md_op_data *op_data);
64 static inline struct lmv_stripe_md *lmv_get_mea(struct ptlrpc_request *req)
66 struct mdt_body *body;
67 struct lmv_stripe_md *mea;
71 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
73 if (!body || !S_ISDIR(body->mode) || !body->eadatasize)
76 mea = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD,
80 if (mea->mea_count == 0)
82 if (mea->mea_magic != MEA_MAGIC_LAST_CHAR &&
83 mea->mea_magic != MEA_MAGIC_ALL_CHARS &&
84 mea->mea_magic != MEA_MAGIC_HASH_SEGMENT)
90 static inline int lmv_get_easize(struct lmv_obd *lmv)
92 return sizeof(struct lmv_stripe_md) +
93 lmv->desc.ld_tgt_count *
94 sizeof(struct lu_fid);
97 static inline struct lmv_tgt_desc *
98 lmv_get_target(struct lmv_obd *lmv, u32 mds)
100 int count = lmv->desc.ld_tgt_count;
103 for (i = 0; i < count; i++) {
104 if (lmv->tgts[i] == NULL)
107 if (lmv->tgts[i]->ltd_idx == mds)
111 return ERR_PTR(-ENODEV);
114 static inline struct lmv_tgt_desc *
115 lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
120 if (lmv->desc.ld_tgt_count > 1) {
121 rc = lmv_fld_lookup(lmv, fid, &mds);
126 return lmv_get_target(lmv, mds);
130 *lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
133 void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars);
135 extern struct file_operations lmv_proc_target_fops;