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LU-7340 mdd: changelogs garbage collection
[fs/lustre-release.git] / lustre / obdclass / llog_swab.c
index 3a49fdc..2713e03 100644 (file)
  *
  * 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 
 #define DEBUG_SUBSYSTEM S_LOG
 
-#ifndef __KERNEL__
-#include <liblustre.h>
-#endif
 
 #include <lustre_log.h>
+#include <lustre_update.h>
 
 static void print_llogd_body(struct llogd_body *d)
 {
-        CDEBUG(D_OTHER, "llogd body: %p\n", d);
-        CDEBUG(D_OTHER, "\tlgd_logid.lgl_oid: "LPX64"\n", d->lgd_logid.lgl_oid);
-        CDEBUG(D_OTHER, "\tlgd_logid.lgl_oseq: "LPX64"\n", d->lgd_logid.lgl_oseq);
-        CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
-        CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
-        CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
-        CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
-        CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
-        CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
-        CDEBUG(D_OTHER, "\tlgd_cur_offset: "LPX64"\n", d->lgd_cur_offset);
+       CDEBUG(D_OTHER, "llogd body: %p\n", d);
+       CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi.oi_fid: "DFID"\n",
+              PFID(&d->lgd_logid.lgl_oi.oi_fid));
+       CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
+       CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
+       CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
+       CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
+       CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
+       CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
+       CDEBUG(D_OTHER, "\tlgd_cur_offset: %#llx\n", d->lgd_cur_offset);
+}
+
+void lustre_swab_lu_fid(struct lu_fid *fid)
+{
+        __swab64s (&fid->f_seq);
+        __swab32s (&fid->f_oid);
+        __swab32s (&fid->f_ver);
+}
+EXPORT_SYMBOL(lustre_swab_lu_fid);
+
+void lustre_swab_ost_id(struct ost_id *oid)
+{
+       if (fid_seq_is_mdt0(oid->oi.oi_seq) ||
+           fid_seq_is_default(oid->oi.oi_seq)) {
+               __swab64s(&oid->oi.oi_id);
+               __swab64s(&oid->oi.oi_seq);
+       } else {
+               lustre_swab_lu_fid(&oid->oi_fid);
+       }
+}
+EXPORT_SYMBOL(lustre_swab_ost_id);
+
+void lustre_swab_llog_id(struct llog_logid *log_id)
+{
+       __swab64s(&log_id->lgl_oi.oi.oi_id);
+       __swab64s(&log_id->lgl_oi.oi.oi_seq);
+        __swab32s(&log_id->lgl_ogen);
 }
 
 void lustre_swab_llogd_body (struct llogd_body *d)
 {
         ENTRY;
         print_llogd_body(d);
-        __swab64s (&d->lgd_logid.lgl_oid);
-        __swab64s (&d->lgd_logid.lgl_oseq);
-        __swab32s (&d->lgd_logid.lgl_ogen);
+       lustre_swab_llog_id(&d->lgd_logid);
         __swab32s (&d->lgd_ctxt_idx);
         __swab32s (&d->lgd_llh_flags);
         __swab32s (&d->lgd_index);
@@ -82,9 +103,7 @@ void lustre_swab_llogd_conn_body (struct llogd_conn_body *d)
 {
         __swab64s (&d->lgdc_gen.mnt_cnt);
         __swab64s (&d->lgdc_gen.conn_cnt);
-        __swab64s (&d->lgdc_logid.lgl_oid);
-        __swab64s (&d->lgdc_logid.lgl_oseq);
-        __swab32s (&d->lgdc_logid.lgl_ogen);
+       lustre_swab_llog_id(&d->lgdc_logid);
         __swab32s (&d->lgdc_ctxt_idx);
 }
 EXPORT_SYMBOL(lustre_swab_llogd_conn_body);
@@ -95,15 +114,6 @@ void lustre_swab_ll_fid(struct ll_fid *fid)
         __swab32s (&fid->generation);
         __swab32s (&fid->f_type);
 }
-EXPORT_SYMBOL(lustre_swab_ll_fid);
-
-void lustre_swab_lu_fid(struct lu_fid *fid)
-{
-        __swab64s (&fid->f_seq);
-        __swab32s (&fid->f_oid);
-        __swab32s (&fid->f_ver);
-}
-EXPORT_SYMBOL(lustre_swab_lu_fid);
 
 void lustre_swab_lu_seq_range(struct lu_seq_range *range)
 {
@@ -114,6 +124,21 @@ void lustre_swab_lu_seq_range(struct lu_seq_range *range)
 }
 EXPORT_SYMBOL(lustre_swab_lu_seq_range);
 
+void lustre_swab_update_ops(struct update_ops *uops, unsigned int op_count)
+{
+       unsigned int i;
+       unsigned int j;
+
+       for (i = 0; i < op_count; i++) {
+               lustre_swab_lu_fid(&uops->uops_op[i].uop_fid);
+               __swab16s(&uops->uops_op[i].uop_type);
+               __swab16s(&uops->uops_op[i].uop_param_count);
+               for (j = 0; j < uops->uops_op[i].uop_param_count; j++)
+                       __swab16s(&uops->uops_op[i].uop_params_off[j]);
+       }
+}
+EXPORT_SYMBOL(lustre_swab_update_ops);
+
 void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
 {
        struct llog_rec_tail *tail = NULL;
@@ -144,30 +169,44 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
                tail = &lur->lur_tail;
                 break;
         }
+       case MDS_UNLINK64_REC:
+       {
+               struct llog_unlink64_rec *lur =
+                       (struct llog_unlink64_rec *)rec;
+
+               lustre_swab_lu_fid(&lur->lur_fid);
+               __swab32s(&lur->lur_count);
+               tail = &lur->lur_tail;
+               break;
+       }
        case CHANGELOG_REC:
        {
-                struct llog_changelog_rec *cr = (struct llog_changelog_rec*)rec;
-
-                __swab16s(&cr->cr.cr_namelen);
-                __swab16s(&cr->cr.cr_flags);
-                __swab32s(&cr->cr.cr_type);
-                __swab64s(&cr->cr.cr_index);
-                __swab64s(&cr->cr.cr_prev);
-                __swab64s(&cr->cr.cr_time);
-                lustre_swab_lu_fid(&cr->cr.cr_tfid);
-                lustre_swab_lu_fid(&cr->cr.cr_pfid);
-               if (CHANGELOG_REC_EXTENDED(&cr->cr)) {
-                       struct llog_changelog_ext_rec *ext =
-                               (struct llog_changelog_ext_rec *)rec;
-
-                       lustre_swab_lu_fid(&ext->cr.cr_sfid);
-                       lustre_swab_lu_fid(&ext->cr.cr_spfid);
-                       tail = &ext->cr_tail;
-               } else {
-                       tail = &cr->cr_tail;
+               struct llog_changelog_rec *cr =
+                       (struct llog_changelog_rec *)rec;
+
+               __swab16s(&cr->cr.cr_namelen);
+               __swab16s(&cr->cr.cr_flags);
+               __swab32s(&cr->cr.cr_type);
+               __swab64s(&cr->cr.cr_index);
+               __swab64s(&cr->cr.cr_prev);
+               __swab64s(&cr->cr.cr_time);
+               lustre_swab_lu_fid(&cr->cr.cr_tfid);
+               lustre_swab_lu_fid(&cr->cr.cr_pfid);
+               if (cr->cr.cr_flags & CLF_RENAME) {
+                       struct changelog_ext_rename *rnm =
+                               changelog_rec_rename(&cr->cr);
+
+                       lustre_swab_lu_fid(&rnm->cr_sfid);
+                       lustre_swab_lu_fid(&rnm->cr_spfid);
                }
-                break;
-        }
+               /* Because the tail follows a variable-length structure we need
+                * to compute its location at runtime */
+               tail = (struct llog_rec_tail *)((char *)&cr->cr +
+                                               changelog_rec_size(&cr->cr) +
+                                               cr->cr.cr_namelen);
+               break;
+       }
+
        case CHANGELOG_USER_REC:
        {
                 struct llog_changelog_user_rec *cur =
@@ -175,50 +214,76 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
 
                 __swab32s(&cur->cur_id);
                 __swab64s(&cur->cur_endrec);
+               __swab32s(&cur->cur_time);
                tail = &cur->cur_tail;
                 break;
         }
 
+       case HSM_AGENT_REC: {
+               struct llog_agent_req_rec *arr =
+                       (struct llog_agent_req_rec *)rec;
+
+               __swab32s(&arr->arr_hai.hai_len);
+               __swab32s(&arr->arr_hai.hai_action);
+               lustre_swab_lu_fid(&arr->arr_hai.hai_fid);
+               lustre_swab_lu_fid(&arr->arr_hai.hai_dfid);
+               __swab64s(&arr->arr_hai.hai_cookie);
+               __swab64s(&arr->arr_hai.hai_extent.offset);
+               __swab64s(&arr->arr_hai.hai_extent.length);
+               __swab64s(&arr->arr_hai.hai_gid);
+               /* no swabing for opaque data */
+               /* hai_data[0]; */
+               break;
+       }
+
        case MDS_SETATTR64_REC:
        {
                struct llog_setattr64_rec *lsr =
                        (struct llog_setattr64_rec *)rec;
 
-                __swab64s(&lsr->lsr_oid);
-                __swab32s(&lsr->lsr_oseq);
-                __swab32s(&lsr->lsr_uid);
+               lustre_swab_ost_id(&lsr->lsr_oi);
+               __swab32s(&lsr->lsr_uid);
                __swab32s(&lsr->lsr_uid_h);
-                __swab32s(&lsr->lsr_gid);
+               __swab32s(&lsr->lsr_gid);
                __swab32s(&lsr->lsr_gid_h);
-               tail = &lsr->lsr_tail;
-                break;
-        }
-        case OBD_CFG_REC:
-                /* these are swabbed as they are consumed */
-                break;
+               __swab64s(&lsr->lsr_valid);
+
+               if (rec->lrh_len > sizeof(struct llog_setattr64_rec)) {
+                       struct llog_setattr64_rec_v2 *lsr2 =
+                               (struct llog_setattr64_rec_v2 *)rec;
+
+                       __swab32s(&lsr2->lsr_projid);
+                       __swab32s(&lsr2->lsr_layout_version);
+                       tail = &lsr2->lsr_tail;
+               } else {
+                       tail = &lsr->lsr_tail;
+               }
+               break;
+       }
+       case OBD_CFG_REC:
+               /* these are swabbed as they are consumed */
+               break;
        case LLOG_HDR_MAGIC:
        {
-                struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
-
-                __swab64s(&llh->llh_timestamp);
-                __swab32s(&llh->llh_count);
-                __swab32s(&llh->llh_bitmap_offset);
-                __swab32s(&llh->llh_flags);
-                __swab32s(&llh->llh_size);
-                __swab32s(&llh->llh_cat_idx);
-               tail = &llh->llh_tail;
-                break;
-        }
+               struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
+
+               __swab64s(&llh->llh_timestamp);
+               __swab32s(&llh->llh_count);
+               __swab32s(&llh->llh_bitmap_offset);
+               __swab32s(&llh->llh_flags);
+               __swab32s(&llh->llh_size);
+               __swab32s(&llh->llh_cat_idx);
+               tail = LLOG_HDR_TAIL(llh);
+               break;
+       }
        case LLOG_LOGID_MAGIC:
        {
-                struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
+               struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
 
-                __swab64s(&lid->lid_id.lgl_oid);
-                __swab64s(&lid->lid_id.lgl_oseq);
-                __swab32s(&lid->lid_id.lgl_ogen);
+               lustre_swab_llog_id(&lid->lid_id);
                tail = &lid->lid_tail;
-                break;
-        }
+               break;
+       }
        case LLOG_GEN_REC:
        {
                struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
@@ -230,32 +295,52 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
        }
         case LLOG_PAD_MAGIC:
                 break;
+       case UPDATE_REC:
+       {
+               struct llog_update_record *lur =
+                               (struct llog_update_record *)rec;
+               struct update_records *record = &lur->lur_update_rec;
+
+               __swab32s(&record->ur_flags);
+               __swab64s(&record->ur_batchid);
+               __swab64s(&record->ur_master_transno);
+               __swab32s(&record->ur_param_count);
+               __swab32s(&record->ur_update_count);
+               lustre_swab_update_ops(&record->ur_ops,
+                                      record->ur_update_count);
+
+               /* Compute tail location. */
+               tail = (struct llog_rec_tail *)((char *)record +
+                                               update_records_size(record));
+               break;
+       }
         default:
                 CERROR("Unknown llog rec type %#x swabbing rec %p\n",
                        rec->lrh_type, rec);
         }
 
-        if (tail) {
-                __swab32s(&tail->lrt_len);
-                __swab32s(&tail->lrt_index);
-        }
+       if (tail) {
+               __swab32s(&tail->lrt_len);
+               __swab32s(&tail->lrt_index);
+       }
 }
-EXPORT_SYMBOL(lustre_swab_llog_rec);
 
 static void print_llog_hdr(struct llog_log_hdr *h)
 {
-        CDEBUG(D_OTHER, "llog header: %p\n", h);
-        CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
-        CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
-        CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
-        CDEBUG(D_OTHER, "\tllh_timestamp: "LPX64"\n", h->llh_timestamp);
-        CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
-        CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
-        CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
-        CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
-        CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
-        CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index);
-        CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
+       CDEBUG(D_OTHER, "llog header: %p\n", h);
+       CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
+       CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
+       CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
+       CDEBUG(D_OTHER, "\tllh_timestamp: %#llx\n", h->llh_timestamp);
+       CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
+       CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
+       CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
+       CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
+       CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
+       CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n",
+              LLOG_HDR_TAIL(h)->lrt_index);
+       CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n",
+              LLOG_HDR_TAIL(h)->lrt_len);
 }
 
 void lustre_swab_llog_hdr (struct llog_log_hdr *h)
@@ -319,7 +404,6 @@ void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
         EXIT;
         return;
 }
-EXPORT_SYMBOL(lustre_swab_lustre_cfg);
 
 /* used only for compatibility with old on-disk cfg_marker data */
 struct cfg_marker32 {
@@ -383,4 +467,3 @@ void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
         EXIT;
         return;
 }
-EXPORT_SYMBOL(lustre_swab_cfg_marker);