X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre_mdc.h;h=f09f327e0b42b10de033b2fc3c9e340767080298;hb=fffe8ac7e42b6638bff9fe19c4bfeb6635023c92;hp=c0f070f466adefd8eadae1a7fae4375db0da3285;hpb=2b294992edce5af7b79d4300ed3aa1ea6a8db850;p=fs%2Flustre-release.git diff --git a/lustre/include/lustre_mdc.h b/lustre/include/lustre_mdc.h index c0f070f..f09f327 100644 --- a/lustre/include/lustre_mdc.h +++ b/lustre/include/lustre_mdc.h @@ -165,28 +165,58 @@ static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck, EXIT; } -/* Update the maximum observed easize and cookiesize. The default easize - * and cookiesize is initialized to the minimum value but allowed to grow - * up to a single page in size if required to handle the common case. +static inline void mdc_get_mod_rpc_slot(struct ptlrpc_request *req, + struct lookup_intent *it) +{ + struct client_obd *cli = &req->rq_import->imp_obd->u.cli; + __u32 opc; + __u16 tag; + + opc = lustre_msg_get_opc(req->rq_reqmsg); + tag = obd_get_mod_rpc_slot(cli, opc, it); + lustre_msg_set_tag(req->rq_reqmsg, tag); +} + +static inline void mdc_put_mod_rpc_slot(struct ptlrpc_request *req, + struct lookup_intent *it) +{ + struct client_obd *cli = &req->rq_import->imp_obd->u.cli; + __u32 opc; + __u16 tag; + + opc = lustre_msg_get_opc(req->rq_reqmsg); + tag = lustre_msg_get_tag(req->rq_reqmsg); + obd_put_mod_rpc_slot(cli, opc, it, tag); +} + + +/** + * Update the maximum possible easize. + * + * This value is learned from ptlrpc replies sent by the MDT. The + * default easize is initialized to the minimum value but allowed to + * grow up to a single page in size if required to handle the common + * case. + * + * \see client_obd::cl_default_mds_easize + * + * \param[in] exp export for MDC device + * \param[in] body body of ptlrpc reply from MDT + * */ static inline void mdc_update_max_ea_from_body(struct obd_export *exp, struct mdt_body *body) { if (body->mbo_valid & OBD_MD_FLMODEASIZE) { struct client_obd *cli = &exp->exp_obd->u.cli; + __u32 def_easize; - if (cli->cl_max_mds_easize < body->mbo_max_mdsize) { + if (cli->cl_max_mds_easize < body->mbo_max_mdsize) cli->cl_max_mds_easize = body->mbo_max_mdsize; - cli->cl_default_mds_easize = - min_t(__u32, body->mbo_max_mdsize, - PAGE_CACHE_SIZE); - } - if (cli->cl_max_mds_cookiesize < body->mbo_max_cookiesize) { - cli->cl_max_mds_cookiesize = body->mbo_max_cookiesize; - cli->cl_default_mds_cookiesize = - min_t(__u32, body->mbo_max_cookiesize, - PAGE_CACHE_SIZE); - } + + def_easize = min_t(__u32, body->mbo_max_mdsize, + OBD_MAX_DEFAULT_EA_SIZE); + cli->cl_default_mds_easize = def_easize; } }