/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: */ #ifndef _MDS_INTERNAL_H #define _MDS_INTERNAL_H #include #define MAX_ATIME_DIFF 60 struct mds_filter_data { __u64 io_epoch; }; #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)(inode)->i_filterdata) #define DENTRY_VALID(dentry) \ ((dentry)->d_inode || ((dentry)->d_flags & DCACHE_CROSS_REF)) #define MDS_NO_SPLIT_EXPECTED 0 #define MDS_EXPECT_SPLIT 1 #define MDS_NO_SPLITTABLE 2 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req) { return &req->rq_export->exp_obd->u.mds; } static inline struct obd_device *req2obd(struct ptlrpc_request *req) { return req->rq_export->exp_obd; } typedef enum { MDS_OPEN_COUNT = 0, MDS_CREATE_COUNT = 1, MDS_CLOSE_COUNT = 2, MDS_LINK_COUNT = 3, MDS_UNLINK_COUNT = 4, MDS_GETATTR_COUNT = 5, MDS_GETATTR_NAME_COUNT = 6, MDS_SETATTR_COUNT = 7, MDS_RENAME_COUNT = 8, MDS_STATFS_COUNT = 9, MDS_LAST_OPC_COUNT = 10 } mds_counters_t; struct lprocfs_stats * lprocfs_alloc_mds_counters(void); void lprocfs_free_mds_counters(struct lprocfs_stats *ptr); #ifndef LPROCFS #define MDS_UPDATE_COUNTER(mds, opcode) do {} while (0) #else #define MDS_UPDATE_COUNTER(mds, opcode) \ LASSERT( opcode < MDS_LAST_OPC_COUNT); \ LASSERT( mds->mds_counters != NULL); \ lprocfs_counter_incr(mds->mds_counters, opcode); #endif /* mds/mds_reint.c */ int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id, struct lustre_handle *p1_lockh, int p1_lock_mode, ldlm_policy_data_t *p1_policy, struct ldlm_res_id *p2_res_id, struct lustre_handle *p2_lockh, int p2_lock_mode, ldlm_policy_data_t *p2_policy); void mds_commit_cb(struct obd_device *, __u64 last_rcvd, void *data, int error); int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle, struct ptlrpc_request *req, int rc, __u32 op_data); void mds_reconstruct_generic(struct ptlrpc_request *req); void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd); int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds, struct ll_fid *fid, struct lustre_handle *parent_lockh, struct dentry **dparentp, int parent_mode, __u64 parent_lockpart, int *update_mode, char *name, int namelen, struct lustre_handle *child_lockh, struct dentry **dchildp, int child_mode, __u64 child_lockpart, void* clone_info); int mds_lock_new_child(struct obd_device *obd, struct inode *inode, struct lustre_handle *child_lockh); /* mds/mds_lib.c */ void groups_from_buffer(struct group_info *ginfo, __u32 *gids); int mds_update_unpack(struct ptlrpc_request *, int offset, struct mds_update_record *); int mds_init_ucred(struct lvfs_ucred *ucred, struct mds_req_sec_desc *rsd); void mds_exit_ucred(struct lvfs_ucred *ucred); /* mds/mds_unlink_open.c */ int mds_open_unlink_rename(struct mds_update_record *rec, struct obd_device *obd, struct dentry *dparent, struct dentry *dchild, void **handle); int mds_cleanup_orphans(struct obd_device *obd); /* mds/mds_log.c */ int mds_log_op_unlink(struct obd_device *obd, struct inode *inode, struct lov_mds_md *lmm, int lmm_size, struct llog_cookie *logcookies, int cookies_size, struct llog_create_locks **res); int mds_llog_init(struct obd_device *obd, struct obd_llogs *, struct obd_device *tgt, int count, struct llog_catid *logid); int mds_llog_finish(struct obd_device *obd, struct obd_llogs *, int count); /* mds/mds_lov.c */ int mds_lov_connect(struct obd_device *obd, char * lov_name); int mds_lov_disconnect(struct obd_device *obd, int flags); int mds_lov_set_info(struct obd_export *exp, obd_count keylen, void *key, obd_count vallen, void *val); int mds_get_lovtgts(struct obd_device *, int tgt_count, struct obd_uuid *); int mds_lov_write_objids(struct obd_device *obd); void mds_lov_update_objids(struct obd_device *obd, obd_id *ids); int mds_lov_set_growth(struct mds_obd *mds, int count); int mds_lov_set_nextid(struct obd_device *obd); int mds_lov_clearorphans(struct mds_obd *mds, struct obd_uuid *ost_uuid); int mds_post_mds_lovconf(struct obd_device *obd); int mds_notify(struct obd_device *obd, struct obd_device *watched, int active, void *data); int mds_lov_update_config(struct obd_device *obd, int transno); int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode, struct lov_mds_md *lmm, int lmm_size); int mds_revalidate_lov_ea(struct obd_device *obd, struct inode *inode, struct lustre_msg *msg, int offset); /* mds/mds_open.c */ int mds_query_write_access(struct inode *inode); int mds_open(struct mds_update_record *rec, int offset, struct ptlrpc_request *req, struct lustre_handle *); int mds_pin(struct ptlrpc_request *req, int offset); int mds_mfd_close(struct ptlrpc_request *req, int offset, struct obd_device *obd, struct mds_file_data *mfd, int unlink_orphan); int mds_close(struct ptlrpc_request *req, int offset); int mds_done_writing(struct ptlrpc_request *req, int offset); /* mds/mds_fs.c */ int mds_client_add(struct obd_device *obd, struct mds_obd *mds, struct mds_export_data *med, int cl_off); int mds_client_free(struct obd_export *exp, int clear_client); int mds_obd_create(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md **ea, struct obd_trans_info *oti); int mds_obd_destroy(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, struct obd_trans_info *oti); /* mds/handler.c */ void mds_squash_root(struct mds_obd *mds, struct mds_req_sec_desc *rsd, ptl_nid_t *peernid); int mds_handle(struct ptlrpc_request *req); extern struct lvfs_callback_ops mds_lvfs_ops; int mds_lov_clean(struct obd_device *obd); extern int mds_iocontrol(unsigned int cmd, struct obd_export *exp, int len, void *karg, void *uarg); extern int mds_lock_mode_for_dir(struct obd_device *, struct dentry *, int); int mds_postrecov(struct obd_device *obd); #ifdef __KERNEL__ int mds_get_md(struct obd_device *, struct inode *, void *md, int *size, int lock); int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset, struct mds_body *, struct inode *, int lock); void mds_pack_dentry2fid(struct ll_fid *, struct dentry *); void mds_pack_dentry2body(struct mds_body *b, struct dentry *dentry); void mds_pack_inode2fid(struct obd_device *, struct ll_fid *, struct inode *); void mds_pack_inode2body(struct obd_device *, struct mds_body *, struct inode *); #endif /* mds/mds_lmv.c */ int mds_lmv_postsetup(struct obd_device *obd); int mds_lmv_connect(struct obd_device *obd, char * lov_name); int mds_lmv_disconnect(struct obd_device *obd, int flags); int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **, int, int); int mds_get_lmv_attr(struct obd_device *, struct inode *, struct mea **, int *); int mds_choose_mdsnum(struct obd_device *, const char *, int, int); int mds_lmv_postsetup(struct obd_device *); int mds_splitting_expected(struct obd_device *, struct dentry *); int mds_lock_slave_objs(struct obd_device *, struct dentry *, struct lustre_handle **); int mds_unlink_slave_objs(struct obd_device *, struct dentry *); void mds_unlock_slave_objs(struct obd_device *, struct dentry *, struct lustre_handle *); int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *); int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int); /* mds_groups.c */ int mds_group_hash_init(void); void mds_group_hash_cleanup(void); void mds_group_hash_flush_idle(void); int mds_allow_setgroups(void); extern char mds_getgroups_upcall[PATH_MAX]; extern int mds_grp_hash_entry_expire; extern int mds_grp_hash_acquire_expire; struct mds_grp_hash *__mds_get_global_group_hash(void); struct mds_grp_hash_entry * mds_get_group_entry(struct mds_obd *mds, uid_t uid); void mds_put_group_entry(struct mds_obd *mds, struct mds_grp_hash_entry *entry); int mds_handle_group_downcall(int err, uid_t uid, __u32 ngroups, gid_t *groups); #endif /* _MDS_INTERNAL_H */