lustre/quota/quota_internal.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * GPL HEADER START
   5  *
   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 only,
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * version 2 along with this program; If not, see
  20  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  21  *
  22  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  23  * CA 95054 USA or visit www.sun.com if you need additional information or
  24  * have any questions.
  25  *
  26  * GPL HEADER END
  27  */
  28 /*
  29  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  30  * Use is subject to license terms.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  */
  36
  37 #ifndef __QUOTA_INTERNAL_H
  38 #define __QUOTA_INTERNAL_H
  39
  40 #include <lustre_quota.h>
  41
  42 #ifdef HAVE_QUOTA_SUPPORT
  43
  44 /* QUSG covnert bytes to blocks when counting block quota */
  45 #define QUSG(count, isblk)      (isblk ? toqb(count) : count)
  46
  47 /* This flag is set in qc_stat to distinguish if the current getquota
  48  * operation is for quota recovery */
  49 #define QUOTA_RECOVERING    0x01
  50 #define OBD_LQUOTA_DEVICENAME  "lquota"
  51
  52 #ifdef __KERNEL__
  53
  54 #define DQUOT_DEBUG(dquot, fmt, arg...)                                       \
  55         CDEBUG(D_QUOTA, "refcnt(%u) id(%u) type(%u) off(%llu) flags(%lu) "    \
  56                "bhardlimit("LPU64") curspace("LPU64") ihardlimit("LPU64") "   \
  57                "curinodes("LPU64"): " fmt, dquot->dq_refcnt,                  \
  58                dquot->dq_id, dquot->dq_type, dquot->dq_off,  dquot->dq_flags, \
  59                dquot->dq_dqb.dqb_bhardlimit, dquot->dq_dqb.dqb_curspace,      \
  60                dquot->dq_dqb.dqb_ihardlimit, dquot->dq_dqb.dqb_curinodes,     \
  61                ## arg);                                                       \
  62
  63 #define QINFO_DEBUG(qinfo, fmt, arg...)                                       \
  64         CDEBUG(D_QUOTA, "files (%p/%p) flags(%lu/%lu) blocks(%u/%u) "         \
  65                "free_blk(/%u/%u) free_entry(%u/%u): " fmt,                    \
  66                qinfo->qi_files[0], qinfo->qi_files[1],                        \
  67                qinfo->qi_info[0].dqi_flags, qinfo->qi_info[1].dqi_flags,      \
  68                qinfo->qi_info[0].dqi_blocks, qinfo->qi_info[1].dqi_blocks,    \
  69                qinfo->qi_info[0].dqi_free_blk, qinfo->qi_info[1].dqi_free_blk,\
  70                qinfo->qi_info[0].dqi_free_entry,                              \
  71                qinfo->qi_info[1].dqi_free_entry, ## arg);
  72
  73 #define QDATA_DEBUG(qd, fmt, arg...)                                          \
  74         CDEBUG(D_QUOTA, "id(%u) flag(%u) type(%c) isblk(%c) count("LPU64") "  \
  75                "qd_qunit("LPU64"): " fmt, qd->qd_id, qd->qd_flags,            \
  76                QDATA_IS_GRP(qd) ? 'g' : 'u', QDATA_IS_BLK(qd) ? 'b': 'i',     \
  77                qd->qd_count,                                                  \
  78                (QDATA_IS_ADJBLK(qd) | QDATA_IS_ADJINO(qd)) ? qd->qd_qunit : 0,\
  79                ## arg);
  80
  81 #define QAQ_DEBUG(qaq, fmt, arg...)                                           \
  82         CDEBUG(D_QUOTA, "id(%u) flag(%u) type(%c) bunit("LPU64") "            \
  83                "iunit("LPU64"): " fmt, qaq->qaq_id, qaq->qaq_flags,           \
  84                QAQ_IS_GRP(qaq) ? 'g': 'u', qaq->qaq_bunit_sz,                 \
  85                qaq->qaq_iunit_sz, ## arg);
  86
  87 #define LQS_DEBUG(lqs, fmt, arg...)                                           \
  88         CDEBUG(D_QUOTA, "lqs(%p) id(%u) flag(%lu) type(%c) bunit(%lu) "       \
  89                "btune(%lu) iunit(%lu) itune(%lu) lqs_bwrite_pending(%lu) "    \
  90                "lqs_iwrite_pending(%lu) ino_rec(%lld) blk_rec(%lld) "         \
  91                "refcount(%d): "                                               \
  92                fmt, lqs, lqs->lqs_id, lqs->lqs_flags,                         \
  93                LQS_IS_GRP(lqs) ? 'g' : 'u',                                   \
  94                lqs->lqs_bunit_sz, lqs->lqs_btune_sz, lqs->lqs_iunit_sz,       \
  95                lqs->lqs_itune_sz, lqs->lqs_bwrite_pending,                    \
  96                lqs->lqs_iwrite_pending, lqs->lqs_ino_rec,                     \
  97                lqs->lqs_blk_rec, cfs_atomic_read(&lqs->lqs_refcount), ## arg);
  98
  99
 100 /* quota_context.c */
 101 void qunit_cache_cleanup(void);
 102 int qunit_cache_init(void);
 103 int qctxt_adjust_qunit(struct obd_device *obd, struct lustre_quota_ctxt *qctxt,
 104                        const unsigned int id[], __u32 isblk, int wait,
 105                        struct obd_trans_info *oti);
 106 int qctxt_wait_pending_dqacq(struct lustre_quota_ctxt *qctxt, unsigned int id,
 107                              unsigned short type, int isblk);
 108 int qctxt_init(struct obd_device *obd, dqacq_handler_t handler);
 109 void qctxt_cleanup(struct lustre_quota_ctxt *qctxt, int force);
 110 void qslave_start_recovery(struct obd_device *obd,
 111                            struct lustre_quota_ctxt *qctxt);
 112 int compute_remquota(struct obd_device *obd,
 113                      struct lustre_quota_ctxt *qctxt, struct qunit_data *qdata,
 114                      int isblk);
 115 int check_qm(struct lustre_quota_ctxt *qctxt);
 116 void dqacq_interrupt(struct lustre_quota_ctxt *qctxt);
 117 int quota_is_on(struct lustre_quota_ctxt *qctxt, struct obd_quotactl *oqctl);
 118 int quota_is_off(struct lustre_quota_ctxt *qctxt, struct obd_quotactl *oqctl);
 119 void* quota_barrier(struct lustre_quota_ctxt *qctxt,
 120                     struct obd_quotactl *oqctl, int isblk);
 121 void quota_unbarrier(void *handle);
 122 /* quota_master.c */
 123 int lustre_dquot_init(void);
 124 void lustre_dquot_exit(void);
 125 int dqacq_handler(struct obd_device *obd, struct qunit_data *qdata, int opc);
 126 int mds_quota_adjust(struct obd_device *obd, const unsigned int qcids[],
 127                      const unsigned int qpids[], int rc, int opc);
 128 int filter_quota_adjust(struct obd_device *obd, const unsigned int qcids[],
 129                         const unsigned int qpids[], int rc, int opc);
 130 int init_admin_quotafiles(struct obd_device *obd, struct obd_quotactl *oqctl);
 131 int mds_quota_get_version(struct obd_device *obd, lustre_quota_version_t *ver);
 132 int mds_quota_invalidate(struct obd_device *obd, struct obd_quotactl *oqctl);
 133 int mds_quota_finvalidate(struct obd_device *obd, struct obd_quotactl *oqctl);
 134
 135 int mds_admin_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl);
 136 int mds_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl);
 137 int mds_quota_off(struct obd_device *obd, struct obd_quotactl *oqctl);
 138 int do_mds_quota_off(struct obd_device *obd, struct obd_quotactl *oqctl);
 139 int mds_admin_quota_off(struct obd_device *obd, struct obd_quotactl *oqctl);
 140 int mds_set_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl);
 141 int mds_get_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl);
 142 int mds_set_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl);
 143 int mds_get_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl);
 144 int mds_quota_recovery(struct obd_device *obd);
 145 int mds_get_obd_quota(struct obd_device *obd, struct obd_quotactl *oqctl);
 146 int dquot_create_oqaq(struct lustre_quota_ctxt *qctxt, struct lustre_dquot
 147                       *dquot, __u32 ost_num, __u32 mdt_num, int type,
 148                       struct quota_adjust_qunit *oqaq);
 149 int generic_quota_on(struct obd_device *, struct obd_quotactl *, int);
 150 #endif
 151
 152 /* quota_ctl.c */
 153 int mds_quota_ctl(struct obd_device *obd, struct obd_export *exp,
 154                   struct obd_quotactl *oqctl);
 155 int filter_quota_ctl(struct obd_device *unused, struct obd_export *exp,
 156                      struct obd_quotactl *oqctl);
 157
 158 /* quota_chk.c */
 159 int target_quota_check(struct obd_device *obd, struct obd_export *exp,
 160                        struct obd_quotactl *oqctl);
 161
 162 int quota_adjust_slave_lqs(struct quota_adjust_qunit *oqaq, struct
 163                           lustre_quota_ctxt *qctxt);
 164 #ifdef __KERNEL__
 165 int quota_is_set(struct obd_device *obd, const unsigned int id[], int flag);
 166 struct lustre_qunit_size *quota_search_lqs(unsigned long long lqs_key,
 167                                            struct lustre_quota_ctxt *qctxt,
 168                                            int create);
 169 void quota_compute_lqs(struct qunit_data *qdata, struct lustre_qunit_size *lqs,
 170                        int is_chk, int is_acq);
 171
 172
 173 extern int quote_get_qdata(struct ptlrpc_request *req, struct qunit_data *qdata,
 174                            int is_req, int is_exp);
 175 extern int quote_copy_qdata(struct ptlrpc_request *req, struct qunit_data *qdata,
 176                             int is_req, int is_exp);
 177 int filter_quota_adjust_qunit(struct obd_export *exp,
 178                               struct quota_adjust_qunit *oqaq,
 179                               struct lustre_quota_ctxt *qctxt);
 180 int lquota_proc_setup(struct obd_device *obd, int is_master);
 181 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt);
 182 void build_lqs(struct obd_device *obd);
 183
 184 extern cfs_proc_dir_entry_t *lquota_type_proc_dir;
 185 #endif
 186
 187 #define LQS_BLK_DECREASE 1
 188 #define LQS_BLK_INCREASE 2
 189 #define LQS_INO_DECREASE 4
 190 #define LQS_INO_INCREASE 8
 191
 192 /* the return status of quota operation */
 193 #define QUOTA_REQ_RETURNED 1
 194
 195 #endif
 196 int client_quota_adjust_qunit(struct obd_export *exp,
 197                               struct quota_adjust_qunit *oqaq,
 198                               struct lustre_quota_ctxt *qctxt);
 199 int lov_quota_adjust_qunit(struct obd_export *exp,
 200                            struct quota_adjust_qunit *oqaq,
 201                            struct lustre_quota_ctxt *qctxt);
 202 int client_quota_ctl(struct obd_device *unused, struct obd_export *exp,
 203                      struct obd_quotactl *oqctl);
 204 int lmv_quota_ctl(struct obd_device *unused, struct obd_export *exp,
 205                   struct obd_quotactl *oqctl);
 206 int lov_quota_ctl(struct obd_device *unused, struct obd_export *exp,
 207                   struct obd_quotactl *oqctl);
 208 int client_quota_check(struct obd_device *unused, struct obd_export *exp,
 209                        struct obd_quotactl *oqctl);
 210 int lmv_quota_check(struct obd_device *unused, struct obd_export *exp,
 211                     struct obd_quotactl *oqctl);
 212 int lov_quota_check(struct obd_device *unused, struct obd_export *exp,
 213                     struct obd_quotactl *oqctl);
 214 int client_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk);
 215
 216 static inline int client_quota_recoverable_error(int rc)
 217 {
 218         return (rc == -ETIMEDOUT || rc == -EAGAIN);
 219 }
 220
 221 static inline int client_quota_should_resend(int resend, struct client_obd *cli)
 222 {
 223         return (cfs_atomic_read(&cli->cl_quota_resends) >= 0) ?
 224                 cfs_atomic_read(&cli->cl_quota_resends) > resend : 1;
 225 }
 226
 227 #endif