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[fs/lustre-release.git] / lustre / obdclass / llog_obd.c
index bdcf6d3..04911d5 100644 (file)
 #include <linux/obd_class.h>
 #include <linux/lustre_log.h>
 #include <portals/list.h>
+#include "llog_internal.h"
 
 /* helper functions for calling the llog obd methods */
 
-int obd_llog_setup(struct obd_device *obd, int index,
-                   struct obd_device *disk_obd, int count,
-                   struct llog_logid *logid, struct llog_operations *op)
+int llog_setup(struct obd_device *obd, struct obd_llogs *llogs, int index,
+               struct obd_device *disk_obd, int count, struct llog_logid *logid,
+               struct llog_operations *op)
 {
         int rc = 0;
         struct llog_ctxt *ctxt;
         ENTRY;
 
+        LASSERT(llogs);
+
         if (index < 0 || index >= LLOG_MAX_CTXTS)
                 RETURN(-EFAULT);
 
@@ -40,53 +43,84 @@ int obd_llog_setup(struct obd_device *obd, int index,
         if (!ctxt)
                 RETURN(-ENOMEM);
 
-        obd->obd_llog_ctxt[index] = ctxt;
-        ctxt->loc_logops = op;
+        llogs->llog_ctxt[index] = ctxt;
         ctxt->loc_obd = obd;
-        ctxt->loc_idx = index;
+        ctxt->loc_llogs = llogs;
         ctxt->loc_exp = class_export_get(disk_obd->obd_self_export);
+        ctxt->loc_idx = index;
+        ctxt->loc_logops = op;
         sema_init(&ctxt->loc_sem, 1);
 
-        if (op->lop_close == llog_lvfs_ops.lop_close) {
-                ctxt->loc_fsops = disk_obd->obd_fsops;
-                ctxt->loc_lvfs_ctxt = &disk_obd->obd_lvfs_ctxt;
-                if (!strcmp(disk_obd->obd_type->typ_name, "mds")) {
-                        struct mds_obd *mds = &disk_obd->u.mds;
-                        ctxt->loc_objects_dir = mds->mds_objects_dir;
-                        ctxt->loc_logs_dir = mds->mds_logs_dir;
-                }
-        }
-
         if (op->lop_setup)
-                rc = op->lop_setup(obd, index, disk_obd, count, logid);
-        if (ctxt && rc) {
-                obd->obd_llog_ctxt[index] = NULL;
+                rc = op->lop_setup(obd, llogs, index, disk_obd, count, logid);
+        if (ctxt && rc)
                 OBD_FREE(ctxt, sizeof(*ctxt));
-        }
 
         RETURN(rc);
 }
-EXPORT_SYMBOL(obd_llog_setup);
+EXPORT_SYMBOL(llog_setup);
 
-int obd_llog_cleanup(struct llog_ctxt *ctxt)
+int llog_cleanup(struct llog_ctxt *ctxt)
 {
         int rc = 0;
         ENTRY;
 
         LASSERT(ctxt);
 
-        ctxt->loc_obd->obd_llog_ctxt[ctxt->loc_idx] = NULL;
+        if (CTXTP(ctxt, cleanup))
+                rc = CTXTP(ctxt, cleanup)(ctxt);
+
+        ctxt->loc_llogs->llog_ctxt[ctxt->loc_idx] = NULL;
         class_export_put(ctxt->loc_exp);
         ctxt->loc_exp = NULL;
+        OBD_FREE(ctxt, sizeof(*ctxt));
 
-        if (CTXTP(ctxt, cleanup)) 
-                rc = CTXTP(ctxt, cleanup)(ctxt);
-        else
-                OBD_FREE(ctxt, sizeof(*ctxt));
+        RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cleanup);
+
+int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp)
+{
+        int rc = 0;
+        ENTRY;
+
+        if (!ctxt)
+                RETURN(0);
+
+        if (CTXTP(ctxt, sync))
+                rc = CTXTP(ctxt, sync)(ctxt, exp);
+
+        RETURN(rc);
+}
+EXPORT_SYMBOL(llog_sync);
+
+int llog_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
+                struct lov_stripe_md *lsm, struct llog_cookie *logcookies,
+                int numcookies)
+{
+        int rc;
+        ENTRY;
+
+        LASSERT(ctxt);
+        CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
 
+        rc = CTXTP(ctxt, add)(ctxt, rec, lsm, logcookies, numcookies);
         RETURN(rc);
 }
-EXPORT_SYMBOL(obd_llog_cleanup);
+EXPORT_SYMBOL(llog_add);
+
+int llog_cancel(struct llog_ctxt *ctxt, struct lov_stripe_md *lsm,
+                int count, struct llog_cookie *cookies, int flags)
+{
+        int rc;
+        ENTRY;
+
+        LASSERT(ctxt);
+        CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP);
+        rc = CTXTP(ctxt, cancel)(ctxt, lsm, count, cookies, flags);
+        RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cancel);
 
 /* callback func for llog_process in llog_obd_origin_setup */
 static int cat_cancel_cb(struct llog_handle *cathandle,
@@ -139,13 +173,13 @@ static int cat_cancel_cb(struct llog_handle *cathandle,
 
 /* lop_setup method for filter/osc */
 // XXX how to set exports
-int llog_obd_origin_setup(struct obd_device *obd, int index,
-                          struct obd_device *disk_obd, int count,
+int llog_obd_origin_setup(struct obd_device *obd, struct obd_llogs *llogs,
+                          int index, struct obd_device *disk_obd, int count,
                           struct llog_logid *logid)
 {
         struct llog_ctxt *ctxt;
         struct llog_handle *handle;
-        struct lvfs_run_ctxt saved;
+        struct obd_run_ctxt saved;
         int rc;
         ENTRY;
 
@@ -154,7 +188,7 @@ int llog_obd_origin_setup(struct obd_device *obd, int index,
 
         LASSERT(count == 1);
 
-        ctxt = llog_get_context(obd, index);
+        ctxt = llog_get_context(llogs, index);
         LASSERT(ctxt);
         llog_gen_init(ctxt);
 
@@ -166,26 +200,93 @@ int llog_obd_origin_setup(struct obd_device *obd, int index,
                         *logid = handle->lgh_id;
         }
         if (rc)
-                RETURN(rc);
+                GOTO(out, rc);
 
         ctxt->loc_handle = handle;
-        push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+        push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
         rc = llog_init_handle(handle, LLOG_F_IS_CAT, NULL);
-        pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
+        pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
         if (rc)
-                RETURN(rc);
+                GOTO(out, rc);
 
         rc = llog_process(handle, (llog_cb_t)cat_cancel_cb, NULL, NULL);
         if (rc)
                 CERROR("llog_process with cat_cancel_cb failed: %d\n", rc);
+ out:
+        if (ctxt && rc) {
+                llogs->llog_ctxt[index] = NULL;
+                OBD_FREE(ctxt, sizeof(*ctxt));
+        }
         RETURN(rc);
 }
 EXPORT_SYMBOL(llog_obd_origin_setup);
 
-int obd_llog_cat_initialize(struct obd_device *obd, int count, char *name)
+int llog_obd_origin_cleanup(struct llog_ctxt *ctxt)
+{
+        struct llog_handle *cathandle, *n, *loghandle;
+        struct llog_log_hdr *llh;
+        int rc, index;
+        ENTRY;
+
+        if (!ctxt)
+                return 0;
+
+        cathandle = ctxt->loc_handle;
+        if (cathandle) {
+                list_for_each_entry_safe(loghandle, n,
+                                         &cathandle->u.chd.chd_head,
+                                         u.phd.phd_entry) {
+                        llh = loghandle->lgh_hdr;
+                        if ((llh->llh_flags &
+                                LLOG_F_ZAP_WHEN_EMPTY) &&
+                            (llh->llh_count == 1)) {
+                                rc = llog_destroy(loghandle);
+                                if (rc)
+                                        CERROR("failure destroying log during "
+                                               "cleanup: %d\n", rc);
+                                LASSERT(rc == 0);
+
+                                index = loghandle->u.phd.phd_cookie.lgc_index;
+                                llog_free_handle(loghandle);
+
+                                LASSERT(index);
+                                llog_cat_set_first_idx(cathandle, index);
+                                rc = llog_cancel_rec(cathandle, index);
+                                if (rc == 0)
+                                        CDEBUG(D_HA, "cancel plain log at index"
+                                               " %u of catalog "LPX64"\n",
+                                               index,cathandle->lgh_id.lgl_oid);
+                        }
+                }
+                llog_cat_put(ctxt->loc_handle);
+        }
+        return 0;
+}
+EXPORT_SYMBOL(llog_obd_origin_cleanup);
+
+/* add for obdfilter/sz and mds/unlink */
+int llog_obd_origin_add(struct llog_ctxt *ctxt,
+                        struct llog_rec_hdr *rec, struct lov_stripe_md *lsm,
+                        struct llog_cookie *logcookies, int numcookies)
+{
+        struct llog_handle *cathandle;
+        int rc;
+        ENTRY;
+
+        cathandle = ctxt->loc_handle;
+        LASSERT(cathandle != NULL);
+        rc = llog_cat_add_rec(cathandle, rec, logcookies, NULL);
+        if (rc != 1)
+                CERROR("write one catalog record failed: %d\n", rc);
+        RETURN(rc);
+}
+EXPORT_SYMBOL(llog_obd_origin_add);
+
+int llog_cat_initialize(struct obd_device *obd, struct obd_llogs *llogs, int count)
 {
         struct llog_catid *idarray;
         int size = sizeof(*idarray) * count;
+        char name[32] = CATLIST;
         int rc;
         ENTRY;
 
@@ -193,21 +294,19 @@ int obd_llog_cat_initialize(struct obd_device *obd, int count, char *name)
         if (!idarray)
                 RETURN(-ENOMEM);
 
-        rc = llog_get_cat_list(&obd->obd_lvfs_ctxt, obd->obd_fsops,
-                               name, count, idarray);
+        rc = llog_get_cat_list(obd, obd, name, count, idarray);
         if (rc) {
                 CERROR("rc: %d\n", rc);
                 GOTO(out, rc);
         }
 
-        rc = obd_llog_init(obd, obd, count, idarray);
+        rc = obd_llog_init(obd, llogs, obd, count, idarray);
         if (rc) {
                 CERROR("rc: %d\n", rc);
                 GOTO(out, rc);
         }
 
-        rc = llog_put_cat_list(&obd->obd_lvfs_ctxt, obd->obd_fsops,
-                               name, count, idarray);
+        rc = llog_put_cat_list(obd, obd, name, count, idarray);
         if (rc) {
                 CERROR("rc: %d\n", rc);
                 GOTO(out, rc);
@@ -217,29 +316,30 @@ int obd_llog_cat_initialize(struct obd_device *obd, int count, char *name)
         OBD_FREE(idarray, size);
         RETURN(rc);
 }
-EXPORT_SYMBOL(obd_llog_cat_initialize);
+EXPORT_SYMBOL(llog_cat_initialize);
 
-int obd_llog_init(struct obd_device *obd, struct obd_device *disk_obd,
-                  int count, struct llog_catid *logid)
+int obd_llog_init(struct obd_device *obd, struct obd_llogs *llogs,
+                  struct obd_device *disk_obd, int count,
+                  struct llog_catid *logid)
 {
         int rc;
         ENTRY;
         OBD_CHECK_OP(obd, llog_init, 0);
         OBD_COUNTER_INCREMENT(obd, llog_init);
 
-        rc = OBP(obd, llog_init)(obd, disk_obd, count, logid);
+        rc = OBP(obd, llog_init)(obd, llogs, disk_obd, count, logid);
         RETURN(rc);
 }
 EXPORT_SYMBOL(obd_llog_init);
 
-int obd_llog_finish(struct obd_device *obd, int count)
+int obd_llog_finish(struct obd_device *obd, struct obd_llogs *llogs, int count)
 {
         int rc;
         ENTRY;
         OBD_CHECK_OP(obd, llog_finish, 0);
         OBD_COUNTER_INCREMENT(obd, llog_finish);
 
-        rc = OBP(obd, llog_finish)(obd, count);
+        rc = OBP(obd, llog_finish)(obd, llogs, count);
         RETURN(rc);
 }
 EXPORT_SYMBOL(obd_llog_finish);