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LU-1302 llog: pass lu_env as parametr in llog functions
[fs/lustre-release.git] / lustre / obdclass / llog_cat.c
index 51d62e9..3bbb801 100644 (file)
@@ -58,7 +58,8 @@
  *
  * Assumes caller has already pushed us into the kernel context and is locking.
  */
-static struct llog_handle *llog_cat_new_log(struct llog_handle *cathandle)
+static struct llog_handle *llog_cat_new_log(const struct lu_env *env,
+                                           struct llog_handle *cathandle)
 {
         struct llog_handle *loghandle;
         struct llog_log_hdr *llh;
@@ -80,11 +81,11 @@ static struct llog_handle *llog_cat_new_log(struct llog_handle *cathandle)
         if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
                 RETURN(ERR_PTR(-ENOSPC));
 
-        rc = llog_create(cathandle->lgh_ctxt, &loghandle, NULL, NULL);
-        if (rc)
-                RETURN(ERR_PTR(rc));
+       rc = llog_create(env, cathandle->lgh_ctxt, &loghandle, NULL, NULL);
+       if (rc)
+               RETURN(ERR_PTR(rc));
 
-        rc = llog_init_handle(loghandle,
+       rc = llog_init_handle(env, loghandle,
                               LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
                               &cathandle->lgh_hdr->llh_tgtuuid);
         if (rc)
@@ -118,7 +119,7 @@ static struct llog_handle *llog_cat_new_log(struct llog_handle *cathandle)
         rec.lid_tail.lrt_index = index;
 
         /* update the catalog: header and record */
-        rc = llog_write_rec(cathandle, &rec.lid_hdr,
+       rc = llog_write_rec(env, cathandle, &rec.lid_hdr,
                             &loghandle->u.phd.phd_cookie, 1, NULL, index);
         if (rc < 0) {
                 GOTO(out_destroy, rc);
@@ -131,10 +132,10 @@ static struct llog_handle *llog_cat_new_log(struct llog_handle *cathandle)
                           &cathandle->u.chd.chd_head);
 
 out_destroy:
-        if (rc < 0)
-                llog_destroy(loghandle);
+       if (rc < 0)
+               llog_destroy(env, loghandle);
 
-        RETURN(loghandle);
+       RETURN(loghandle);
 }
 
 /* Open an existent log handle and add it to the open list.
@@ -143,8 +144,8 @@ out_destroy:
  * Assumes caller has already pushed us into the kernel context and is locking.
  * We return a lock on the handle to ensure nobody yanks it from us.
  */
-int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
-                       struct llog_logid *logid)
+int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
+                      struct llog_handle **res, struct llog_logid *logid)
 {
         struct llog_handle *loghandle;
         int rc = 0;
@@ -156,6 +157,7 @@ int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
         cfs_list_for_each_entry(loghandle, &cathandle->u.chd.chd_head,
                                 u.phd.phd_entry) {
                 struct llog_logid *cgl = &loghandle->lgh_id;
+
                 if (cgl->lgl_oid == logid->lgl_oid) {
                         if (cgl->lgl_ogen != logid->lgl_ogen) {
                                 CERROR("log "LPX64" generation %x != %x\n",
@@ -168,12 +170,12 @@ int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
                 }
         }
 
-        rc = llog_create(cathandle->lgh_ctxt, &loghandle, logid, NULL);
-        if (rc) {
-                CERROR("error opening log id "LPX64":%x: rc %d\n",
-                       logid->lgl_oid, logid->lgl_ogen, rc);
-        } else {
-                rc = llog_init_handle(loghandle, LLOG_F_IS_PLAIN, NULL);
+       rc = llog_create(env, cathandle->lgh_ctxt, &loghandle, logid, NULL);
+       if (rc) {
+               CERROR("error opening log id "LPX64":%x: rc %d\n",
+                      logid->lgl_oid, logid->lgl_ogen, rc);
+       } else {
+               rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, NULL);
                 if (!rc) {
                         cfs_list_add(&loghandle->u.phd.phd_entry,
                                      &cathandle->u.chd.chd_head);
@@ -191,20 +193,21 @@ out:
         RETURN(rc);
 }
 
-int llog_cat_put(struct llog_handle *cathandle)
+int llog_cat_put(const struct lu_env *env, struct llog_handle *cathandle)
 {
-        struct llog_handle *loghandle, *n;
-        int rc;
-        ENTRY;
-
-        cfs_list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
-                                     u.phd.phd_entry) {
-                int err = llog_close(loghandle);
-                if (err)
-                        CERROR("error closing loghandle\n");
-        }
-        rc = llog_close(cathandle);
-        RETURN(rc);
+       struct llog_handle      *loghandle, *n;
+       int                      rc;
+
+       ENTRY;
+
+       cfs_list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
+                                    u.phd.phd_entry) {
+               int err = llog_close(env, loghandle);
+               if (err)
+                       CERROR("error closing loghandle\n");
+       }
+       rc = llog_close(env, cathandle);
+       RETURN(rc);
 }
 EXPORT_SYMBOL(llog_cat_put);
 
@@ -226,8 +229,9 @@ enum {
  *
  * NOTE: loghandle is write-locked upon successful return
  */
-static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
-                                                int create)
+static struct llog_handle *llog_cat_current_log(const struct lu_env *env,
+                                               struct llog_handle *cathandle,
+                                               int create)
 {
         struct llog_handle *loghandle = NULL;
         ENTRY;
@@ -236,6 +240,7 @@ static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
         loghandle = cathandle->u.chd.chd_current_log;
         if (loghandle) {
                 struct llog_log_hdr *llh = loghandle->lgh_hdr;
+
                 cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
                 if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
                         cfs_up_read(&cathandle->lgh_lock);
@@ -259,6 +264,7 @@ static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
         loghandle = cathandle->u.chd.chd_current_log;
         if (loghandle) {
                 struct llog_log_hdr *llh = loghandle->lgh_hdr;
+
                 cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
                 if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
                         cfs_up_write(&cathandle->lgh_lock);
@@ -269,7 +275,7 @@ static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
         }
 
         CDEBUG(D_INODE, "creating new log\n");
-        loghandle = llog_cat_new_log(cathandle);
+       loghandle = llog_cat_new_log(env, cathandle);
         if (!IS_ERR(loghandle))
                 cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
         cfs_up_write(&cathandle->lgh_lock);
@@ -281,28 +287,30 @@ static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
  *
  * Assumes caller has already pushed us into the kernel context.
  */
-int llog_cat_add_rec(struct llog_handle *cathandle, struct llog_rec_hdr *rec,
-                     struct llog_cookie *reccookie, void *buf)
+int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle,
+                    struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
+                    void *buf)
 {
         struct llog_handle *loghandle;
         int rc;
         ENTRY;
 
         LASSERT(rec->lrh_len <= LLOG_CHUNK_SIZE);
-        loghandle = llog_cat_current_log(cathandle, 1);
-        if (IS_ERR(loghandle))
-                RETURN(PTR_ERR(loghandle));
-        /* loghandle is already locked by llog_cat_current_log() for us */
-        rc = llog_write_rec(loghandle, rec, reccookie, 1, buf, -1);
+       loghandle = llog_cat_current_log(env, cathandle, 1);
+       if (IS_ERR(loghandle))
+               RETURN(PTR_ERR(loghandle));
+       /* loghandle is already locked by llog_cat_current_log() for us */
+       rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf, -1);
         if (rc < 0)
                 CERROR("llog_write_rec %d: lh=%p\n", rc, loghandle);
         cfs_up_write(&loghandle->lgh_lock);
         if (rc == -ENOSPC) {
                 /* to create a new plain log */
-                loghandle = llog_cat_current_log(cathandle, 1);
-                if (IS_ERR(loghandle))
-                        RETURN(PTR_ERR(loghandle));
-                rc = llog_write_rec(loghandle, rec, reccookie, 1, buf, -1);
+               loghandle = llog_cat_current_log(env, cathandle, 1);
+               if (IS_ERR(loghandle))
+                       RETURN(PTR_ERR(loghandle));
+               rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf,
+                                   -1);
                 cfs_up_write(&loghandle->lgh_lock);
         }
 
@@ -319,8 +327,9 @@ EXPORT_SYMBOL(llog_cat_add_rec);
  *
  * Assumes caller has already pushed us into the kernel context.
  */
-int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
-                            struct llog_cookie *cookies)
+int llog_cat_cancel_records(const struct lu_env *env,
+                           struct llog_handle *cathandle, int count,
+                           struct llog_cookie *cookies)
 {
         int i, index, rc = 0;
         ENTRY;
@@ -330,14 +339,14 @@ int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
                 struct llog_handle *loghandle;
                 struct llog_logid *lgl = &cookies->lgc_lgl;
 
-                rc = llog_cat_id2handle(cathandle, &loghandle, lgl);
-                if (rc) {
-                        CERROR("Cannot find log "LPX64"\n", lgl->lgl_oid);
-                        break;
-                }
+               rc = llog_cat_id2handle(env, cathandle, &loghandle, lgl);
+               if (rc) {
+                       CERROR("Cannot find log "LPX64"\n", lgl->lgl_oid);
+                       break;
+               }
 
                 cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
-                rc = llog_cancel_rec(loghandle, cookies->lgc_index);
+               rc = llog_cancel_rec(env, loghandle, cookies->lgc_index);
                 cfs_up_write(&loghandle->lgh_lock);
 
                 if (rc == 1) {          /* log has been destroyed */
@@ -348,7 +357,7 @@ int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
 
                         LASSERT(index);
                         llog_cat_set_first_idx(cathandle, index);
-                        rc = llog_cancel_rec(cathandle, index);
+                       rc = llog_cancel_rec(env, cathandle, index);
                         if (rc == 0)
                                 CDEBUG(D_RPCTRACE,"cancel plain log at index %u"
                                        " of catalog "LPX64"\n",
@@ -361,8 +370,8 @@ int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
 }
 EXPORT_SYMBOL(llog_cat_cancel_records);
 
-int llog_cat_process_cb(struct llog_handle *cat_llh, struct llog_rec_hdr *rec,
-                        void *data)
+int llog_cat_process_cb(const struct lu_env *env, struct llog_handle *cat_llh,
+                       struct llog_rec_hdr *rec, void *data)
 {
         struct llog_process_data *d = data;
         struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
@@ -378,7 +387,7 @@ int llog_cat_process_cb(struct llog_handle *cat_llh, struct llog_rec_hdr *rec,
                LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
                rec->lrh_index, cat_llh->lgh_id.lgl_oid);
 
-        rc = llog_cat_id2handle(cat_llh, &llh, &lir->lid_id);
+       rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
         if (rc) {
                 CERROR("Cannot find handle for log "LPX64"\n",
                        lir->lid_id.lgl_oid);
@@ -394,11 +403,11 @@ int llog_cat_process_cb(struct llog_handle *cat_llh, struct llog_rec_hdr *rec,
 
                 cd.lpcd_first_idx = d->lpd_startidx;
                 cd.lpcd_last_idx = 0;
-               rc = llog_process(NULL, llh, d->lpd_cb, d->lpd_data, &cd);
+               rc = llog_process(env, llh, d->lpd_cb, d->lpd_data, &cd);
                 /* Continue processing the next log from idx 0 */
                 d->lpd_startidx = 0;
         } else {
-               rc = llog_process(NULL, llh, d->lpd_cb, d->lpd_data, NULL);
+               rc = llog_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
         }
 
         RETURN(rc);
@@ -475,12 +484,12 @@ int llog_cat_process_thread(void *data)
        LASSERT(lgi);
 
        lgi->lgi_logid = *(struct llog_logid *)(args->lpca_arg);
-       rc = llog_create(ctxt, &llh, &lgi->lgi_logid, NULL);
+       rc = llog_create(&env, ctxt, &llh, &lgi->lgi_logid, NULL);
         if (rc) {
                 CERROR("llog_create() failed %d\n", rc);
                GOTO(out_env, rc);
         }
-        rc = llog_init_handle(llh, LLOG_F_IS_CAT, NULL);
+       rc = llog_init_handle(&env, llh, LLOG_F_IS_CAT, NULL);
         if (rc) {
                 CERROR("llog_init_handle failed %d\n", rc);
                 GOTO(release_llh, rc);
@@ -488,9 +497,9 @@ int llog_cat_process_thread(void *data)
 
         if (cb) {
                rc = llog_cat_process(&env, llh, cb, NULL, 0, 0);
-                if (rc != LLOG_PROC_BREAK && rc != 0)
-                        CERROR("llog_cat_process() failed %d\n", rc);
-                cb(llh, NULL, NULL);
+               if (rc != LLOG_PROC_BREAK && rc != 0)
+                       CERROR("llog_cat_process() failed %d\n", rc);
+               cb(&env, llh, NULL, NULL);
         } else {
                 CWARN("No callback function for recovery\n");
         }
@@ -501,7 +510,7 @@ int llog_cat_process_thread(void *data)
        llog_sync(ctxt, NULL, 0);
         GOTO(release_llh, rc);
 release_llh:
-        rc = llog_cat_put(llh);
+       rc = llog_cat_put(&env, llh);
         if (rc)
                 CERROR("llog_cat_put() failed %d\n", rc);
 out_env:
@@ -514,8 +523,9 @@ out:
 EXPORT_SYMBOL(llog_cat_process_thread);
 #endif
 
-static int llog_cat_reverse_process_cb(struct llog_handle *cat_llh,
-                                       struct llog_rec_hdr *rec, void *data)
+static int llog_cat_reverse_process_cb(const struct lu_env *env,
+                                      struct llog_handle *cat_llh,
+                                      struct llog_rec_hdr *rec, void *data)
 {
         struct llog_process_data *d = data;
         struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
@@ -530,14 +540,14 @@ static int llog_cat_reverse_process_cb(struct llog_handle *cat_llh,
                LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
                le32_to_cpu(rec->lrh_index), cat_llh->lgh_id.lgl_oid);
 
-        rc = llog_cat_id2handle(cat_llh, &llh, &lir->lid_id);
+       rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
         if (rc) {
                 CERROR("Cannot find handle for log "LPX64"\n",
                        lir->lid_id.lgl_oid);
                 RETURN(rc);
         }
 
-       rc = llog_reverse_process(NULL, llh, d->lpd_cb, d->lpd_data, NULL);
+       rc = llog_reverse_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
         RETURN(rc);
 }
 
@@ -613,3 +623,61 @@ out:
 
         RETURN(0);
 }
+
+/* callback func for llog_process in llog_obd_origin_setup */
+int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
+                 struct llog_rec_hdr *rec, void *data)
+{
+       struct llog_logid_rec   *lir = (struct llog_logid_rec *)rec;
+       struct llog_handle      *loghandle;
+       struct llog_log_hdr     *llh;
+       int                      rc, index;
+
+       ENTRY;
+
+       if (rec->lrh_type != LLOG_LOGID_MAGIC) {
+               CERROR("%s: invalid record in catalog\n",
+                      loghandle->lgh_ctxt->loc_obd->obd_name);
+               RETURN(-EINVAL);
+       }
+       CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "
+              LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
+              rec->lrh_index, cathandle->lgh_id.lgl_oid);
+
+       rc = llog_cat_id2handle(env, cathandle, &loghandle, &lir->lid_id);
+       if (rc) {
+               CERROR("%s: cannot find handle for llog "LPX64"\n",
+                      loghandle->lgh_ctxt->loc_obd->obd_name,
+                      lir->lid_id.lgl_oid);
+               if (rc == -ENOENT) {
+                       index = rec->lrh_index;
+                       goto cat_cleanup;
+               }
+               RETURN(rc);
+       }
+
+       llh = loghandle->lgh_hdr;
+       if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
+           (llh->llh_count == 1)) {
+               rc = llog_destroy(env, loghandle);
+               if (rc)
+                       CERROR("%s: fail to destroy empty log: rc = %d\n",
+                              loghandle->lgh_ctxt->loc_obd->obd_name, rc);
+
+               index = loghandle->u.phd.phd_cookie.lgc_index;
+               llog_free_handle(loghandle);
+
+cat_cleanup:
+               LASSERT(index);
+               llog_cat_set_first_idx(cathandle, index);
+               rc = llog_cancel_rec(env, cathandle, index);
+               if (rc == 0)
+                       CDEBUG(D_HA,
+                              "cancel log "LPX64":%x at index %u of catalog "
+                              LPX64"\n", lir->lid_id.lgl_oid,
+                              lir->lid_id.lgl_ogen, rec->lrh_index,
+                              cathandle->lgh_id.lgl_oid);
+       }
+
+       RETURN(rc);
+}