X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flov%2Flov_internal.h;h=9e640b280ab0f6619e701fe64a4c7591b1e9107e;hb=8cad1d968ad4efee46d08aee1e6a6266d4713e84;hp=a565f515370b1b72e6bf32bb4e5aafdb948c33a5;hpb=30c3a18963d1d6d70175fbbbdd9554e1eb2fa40d;p=fs%2Flustre-release.git diff --git a/lustre/lov/lov_internal.h b/lustre/lov/lov_internal.h index a565f51..9e640b2 100644 --- a/lustre/lov/lov_internal.h +++ b/lustre/lov/lov_internal.h @@ -1,37 +1,284 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * Copyright (C) 2003 Cluster File Systems, Inc. + * GPL HEADER START * - * This code is issued under the GNU General Public License. - * See the file COPYING in this distribution + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef LOV_INTERNAL_H #define LOV_INTERNAL_H -#include +#include +#include + +struct lov_lock_handles { + struct portals_handle llh_handle; + cfs_atomic_t llh_refcount; + int llh_stripe_count; + struct lustre_handle llh_handles[0]; +}; + +struct lov_request { + struct obd_info rq_oi; + struct lov_request_set *rq_rqset; -#define LAP_MAGIC 8200 + cfs_list_t rq_link; -struct lov_async_page { - int lap_magic; - int lap_stripe; - obd_off lap_sub_offset; - void *lap_sub_cookie; - struct obd_async_page_ops *lap_caller_ops; - struct obd_async_page_ops *lap_caller_data; - obd_id lap_loi_id; + int rq_idx; /* index in lov->tgts array */ + int rq_stripe; /* stripe number */ + int rq_complete; + int rq_rc; + int rq_buflen; /* length of sub_md */ + + obd_count rq_oabufs; + obd_count rq_pgaidx; }; -/* lov_obd.c */ -int lov_get_stripecnt(struct lov_obd *lov, int stripe_count); -int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, int pattern); -void lov_free_memmd(struct lov_stripe_md **lsmp); +struct lov_request_set { + struct ldlm_enqueue_info*set_ei; + struct obd_info *set_oi; + cfs_atomic_t set_refcount; + struct obd_export *set_exp; + /* XXX: There is @set_exp already, however obd_statfs gets obd_device + only. */ + struct obd_device *set_obd; + int set_count; + int set_completes; + int set_success; + struct llog_cookie *set_cookies; + int set_cookie_sent; + struct obd_trans_info *set_oti; + obd_count set_oabufs; + struct brw_page *set_pga; + struct lov_lock_handles *set_lockh; + cfs_list_t set_list; + cfs_waitq_t set_waitq; + cfs_spinlock_t set_lock; +}; + +extern cfs_mem_cache_t *lov_oinfo_slab; + +static inline void lov_llh_addref(void *llhp) +{ + struct lov_lock_handles *llh = llhp; + cfs_atomic_inc(&llh->llh_refcount); + CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh, + cfs_atomic_read(&llh->llh_refcount)); +} + +static inline struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm) +{ + struct lov_lock_handles *llh; + + OBD_ALLOC(llh, sizeof *llh + + sizeof(*llh->llh_handles) * lsm->lsm_stripe_count); + if (llh == NULL) + return NULL; + cfs_atomic_set(&llh->llh_refcount, 2); + llh->llh_stripe_count = lsm->lsm_stripe_count; + CFS_INIT_LIST_HEAD(&llh->llh_handle.h_link); + class_handle_hash(&llh->llh_handle, lov_llh_addref); + return llh; +} + +void lov_finish_set(struct lov_request_set *set); + +static inline void lov_get_reqset(struct lov_request_set *set) +{ + LASSERT(set != NULL); + LASSERT(cfs_atomic_read(&set->set_refcount) > 0); + cfs_atomic_inc(&set->set_refcount); +} +static inline void lov_put_reqset(struct lov_request_set *set) +{ + if (cfs_atomic_dec_and_test(&set->set_refcount)) + lov_finish_set(set); +} + +static inline struct lov_lock_handles * +lov_handle2llh(struct lustre_handle *handle) +{ + LASSERT(handle != NULL); + return(class_handle2object(handle->cookie)); +} + +static inline void lov_llh_put(struct lov_lock_handles *llh) +{ + CDEBUG(D_INFO, "PUTting llh %p : new refcount %d\n", llh, + cfs_atomic_read(&llh->llh_refcount) - 1); + LASSERT(cfs_atomic_read(&llh->llh_refcount) > 0 && + cfs_atomic_read(&llh->llh_refcount) < 0x5a5a); + if (cfs_atomic_dec_and_test(&llh->llh_refcount)) { + class_handle_unhash(&llh->llh_handle); + /* The structure may be held by other threads because RCU. + * -jxiong */ + if (cfs_atomic_read(&llh->llh_refcount)) + return; + + OBD_FREE_RCU(llh, sizeof *llh + + sizeof(*llh->llh_handles) * llh->llh_stripe_count, + &llh->llh_handle); + } +} + +#define lov_uuid2str(lv, index) \ + (char *)((lv)->lov_tgts[index]->ltd_uuid.uuid) + +/* lov_merge.c */ +void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_flag valid, + struct lov_stripe_md *lsm, int stripeno, int *set); +int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm, + struct ost_lvb *lvb, int kms_only); +int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm, + obd_off size, int shrink); +int lov_merge_lvb_kms(struct lov_stripe_md *lsm, + struct ost_lvb *lvb, __u64 *kms_place); + +/* lov_offset.c */ +obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size, + int stripeno); +int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off, + int stripeno, obd_off *obd_off); +obd_off lov_size_to_stripe(struct lov_stripe_md *lsm, obd_off file_size, + int stripeno); +int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno, + obd_off start, obd_off end, + obd_off *obd_start, obd_off *obd_end); +int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off); + +/* lov_qos.c */ +#define LOV_USES_ASSIGNED_STRIPE 0 +#define LOV_USES_DEFAULT_STRIPE 1 +int qos_add_tgt(struct obd_device *obd, __u32 index); +int qos_del_tgt(struct obd_device *obd, struct lov_tgt_desc *tgt); +void qos_shrink_lsm(struct lov_request_set *set); +int qos_prep_create(struct obd_export *exp, struct lov_request_set *set); +void qos_update(struct lov_obd *lov); +void qos_statfs_done(struct lov_obd *lov); +void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait); +int qos_remedy_create(struct lov_request_set *set, struct lov_request *req); + +/* lov_request.c */ +void lov_set_add_req(struct lov_request *req, struct lov_request_set *set); +int lov_finished_set(struct lov_request_set *set); +void lov_update_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_update_common_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_prep_create_set(struct obd_export *exp, struct obd_info *oifo, + struct lov_stripe_md **ea, struct obdo *src_oa, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int cb_create_update(void *cookie, int rc); +int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea); +int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo, + obd_count oa_bufs, struct brw_page *pga, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_fini_brw_set(struct lov_request_set *set); +int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_request_set **reqset); +int lov_fini_getattr_set(struct lov_request_set *set); +int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo, + struct obdo *src_oa, struct lov_stripe_md *lsm, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_update_destroy_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_fini_destroy_set(struct lov_request_set *set); +int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_update_setattr_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_fini_setattr_set(struct lov_request_set *set); +int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_fini_punch_set(struct lov_request_set *set); +int lov_prep_sync_set(struct obd_export *exp, struct obd_info *obd_info, + struct obdo *src_oa, + struct lov_stripe_md *lsm, obd_off start, + obd_off end, struct lov_request_set **reqset); +int lov_fini_sync_set(struct lov_request_set *set); +int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo, + struct ldlm_enqueue_info *einfo, + struct lov_request_set **reqset); +int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc, + struct ptlrpc_request_set *rqset); +int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_stripe_md *lsm, + ldlm_policy_data_t *policy, __u32 mode, + struct lustre_handle *lockh, + struct lov_request_set **reqset); +int lov_update_match_set(struct lov_request_set *set, struct lov_request *req, + int rc); +int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags); +int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_stripe_md *lsm, + __u32 mode, struct lustre_handle *lockh, + struct lov_request_set **reqset); +int lov_fini_cancel_set(struct lov_request_set *set); +int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo, + struct lov_request_set **reqset); +void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs, + int success); +int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs, + int success); +int lov_fini_statfs_set(struct lov_request_set *set); +int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc); + +int cb_sync_fs_update(void *cookie, int rc); +int lov_fini_sync_fs_set(struct lov_request_set *set); +int lov_prep_sync_fs_set(struct obd_device *obd, struct obd_info *oinfo, + struct lov_request_set **reqset); +/* lov_obd.c */ +void lov_fix_desc(struct lov_desc *desc); +void lov_fix_desc_stripe_size(__u64 *val); +void lov_fix_desc_stripe_count(__u32 *val); +void lov_fix_desc_pattern(__u32 *val); +void lov_fix_desc_qos_maxage(__u32 *val); +int lov_get_stripecnt(struct lov_obd *lov, __u32 stripe_count); +int lov_connect_obd(struct obd_device *obd, __u32 index, int activate, + struct obd_connect_data *data); +int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg); +int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg, + __u32 *indexp, int *genp); +int lov_del_target(struct obd_device *obd, __u32 index, + struct obd_uuid *uuidp, int gen); /* lov_log.c */ -int lov_llog_init(struct obd_device *obd, struct obd_device *tgt, - int count, struct llog_logid *logid); +int lov_llog_init(struct obd_device *obd, struct obd_llog_group *olg, + struct obd_device *tgt, int *idx); int lov_llog_finish(struct obd_device *obd, int count); /* lov_pack.c */ @@ -39,14 +286,87 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm, struct lov_stripe_md *lsm); int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, struct lov_mds_md *lmm, int lmm_bytes); -int lov_setstripe(struct obd_export *exp, +int lov_setstripe(struct obd_export *exp, int max_lmm_size, struct lov_stripe_md **lsmp, struct lov_user_md *lump); -int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp, +int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp, struct lov_user_md *lump); int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_user_md *lump); +int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, + int pattern, int magic); +void lov_free_memmd(struct lov_stripe_md **lsmp); + +void lov_dump_lmm_v1(int level, struct lov_mds_md_v1 *lmm); +void lov_dump_lmm_v3(int level, struct lov_mds_md_v3 *lmm); +void lov_dump_lmm(int level, void *lmm); + +/* lov_ea.c */ +struct lov_stripe_md *lsm_alloc_plain(int stripe_count, int *size); +void lsm_free_plain(struct lov_stripe_md *lsm); +int lovea_destroy_object(struct lov_obd *lov, struct lov_stripe_md *lsm, + struct obdo *oa, void *data); /* lproc_lov.c */ extern struct file_operations lov_proc_target_fops; +#ifdef LPROCFS +void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars); +#else +static inline void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars) +{ + memset(lvars, 0, sizeof(*lvars)); +} +#endif + +/* lov_cl.c */ +extern struct lu_device_type lov_device_type; + +/* pools */ +extern cfs_hash_ops_t pool_hash_operations; +/* ost_pool methods */ +int lov_ost_pool_init(struct ost_pool *op, unsigned int count); +int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count); +int lov_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count); +int lov_ost_pool_remove(struct ost_pool *op, __u32 idx); +int lov_ost_pool_free(struct ost_pool *op); + +/* high level pool methods */ +int lov_pool_new(struct obd_device *obd, char *poolname); +int lov_pool_del(struct obd_device *obd, char *poolname); +int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname); +int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname); +void lov_dump_pool(int level, struct pool_desc *pool); +struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname); +int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool); +void lov_pool_putref(struct pool_desc *pool); + +#if BITS_PER_LONG == 64 +# define ll_do_div64(n,base) ({ \ + uint64_t __base = (base); \ + uint64_t __rem; \ + __rem = ((uint64_t)(n)) % __base; \ + (n) = ((uint64_t)(n)) / __base; \ + __rem; \ + }) +#elif BITS_PER_LONG == 32 +# define ll_do_div64(n,base) ({ \ + uint64_t __rem; \ + if ((sizeof(base) > 4) && (((base)&0xffffffff00000000ULL) != 0)) { \ + int __remainder; \ + LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov "\ + "division %llu / %llu\n", (n), (base)); \ + __remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1); \ + (n) >>= LOV_MIN_STRIPE_BITS; \ + (base) >>= LOV_MIN_STRIPE_BITS; \ + __rem = do_div(n, base); \ + __rem <<= LOV_MIN_STRIPE_BITS; \ + __rem += __remainder; \ + } else { \ + __rem = do_div(n, base); \ + } \ + __rem; \ + }) +#else +#error Unsupported architecture. +#endif #endif