LU-2675 llog: remove obd_llog_init() and obd_llod_finish()

Since the OBD methods obd_llog_init() and obd_llod_finish() are only
called from MDC we remove them and just call mdc_llog_init() and
mdc_llog_finish() directly. Also simplify the prototypes the latter
functions according to their uses.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I56f906eacedaa4e2f90742fb129b4d578751a524
Reviewed-on: http://review.whamcloud.com/11781
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>

diff --git a/lustre/include/lustre_log.h b/lustre/include/lustre_log.h
index 6c87be0..45d8758 100644 (file)
--- a/lustre/include/lustre_log.h
+++ b/lustre/include/lustre_log.h
@@ -206,11 +206,6 @@ int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags);
 int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
                struct llog_cookie *cookies, int flags);
 
-int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
-                  struct obd_device *disk_obd, int *idx);
-
-int obd_llog_finish(struct obd_device *obd, int count);
-
 /* llog_ioctl.c */
 struct obd_ioctl_data;
 int llog_ioctl(const struct lu_env *env, struct llog_ctxt *ctxt, int cmd,

diff --git a/lustre/include/obd.h b/lustre/include/obd.h
index 60acd33..d85d984 100644 (file)
--- a/lustre/include/obd.h
+++ b/lustre/include/obd.h
@@ -965,11 +965,6 @@ struct obd_ops {
         int (*o_init_export)(struct obd_export *exp);
         int (*o_destroy_export)(struct obd_export *exp);
 
-        /* llog related obd_methods */
-        int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
-                           struct obd_device *disk_obd, int *idx);
-        int (*o_llog_finish)(struct obd_device *obd, int count);
-
         int (*o_import_event)(struct obd_device *, struct obd_import *,
                               enum obd_import_event);
 

diff --git a/lustre/mdc/mdc_request.c b/lustre/mdc/mdc_request.c
index 0ab1d70..032f88f 100644 (file)
--- a/lustre/mdc/mdc_request.c
+++ b/lustre/mdc/mdc_request.c
@@ -2845,6 +2845,39 @@ struct ldlm_valblock_ops inode_lvbo = {
        .lvbo_free = mdc_resource_inode_free
 };
 
+static int mdc_llog_init(struct obd_device *obd)
+{
+       struct obd_llog_group   *olg = &obd->obd_olg;
+       struct llog_ctxt        *ctxt;
+       int                      rc;
+
+       ENTRY;
+
+       rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, obd,
+                       &llog_client_ops);
+       if (rc < 0)
+               RETURN(rc);
+
+       ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
+       llog_initiator_connect(ctxt);
+       llog_ctxt_put(ctxt);
+
+       RETURN(0);
+}
+
+static void mdc_llog_finish(struct obd_device *obd)
+{
+       struct llog_ctxt *ctxt;
+
+       ENTRY;
+
+       ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
+       if (ctxt != NULL)
+               llog_cleanup(NULL, ctxt);
+
+       EXIT;
+}
+
 static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
 {
        struct client_obd               *cli = &obd->u.cli;
@@ -2880,7 +2913,7 @@ static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
 
        obd->obd_namespace->ns_lvbo = &inode_lvbo;
 
-        rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
+       rc = mdc_llog_init(obd);
         if (rc) {
                 mdc_cleanup(obd);
                 CERROR("failed to setup llogging subsystems\n");
@@ -2944,10 +2977,7 @@ static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
                 ptlrpc_lprocfs_unregister_obd(obd);
                 lprocfs_obd_cleanup(obd);
                lprocfs_free_md_stats(obd);
-
-                rc = obd_llog_finish(obd, 0);
-                if (rc != 0)
-                        CERROR("failed to cleanup llogging subsystems\n");
+               mdc_llog_finish(obd);
                 break;
         }
         RETURN(rc);
@@ -2965,42 +2995,6 @@ static int mdc_cleanup(struct obd_device *obd)
         return client_obd_cleanup(obd);
 }
 
-
-static int mdc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
-                         struct obd_device *tgt, int *index)
-{
-       struct llog_ctxt        *ctxt;
-       int                      rc;
-
-       ENTRY;
-
-       LASSERT(olg == &obd->obd_olg);
-
-       rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, tgt,
-                       &llog_client_ops);
-       if (rc)
-               RETURN(rc);
-
-       ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
-       llog_initiator_connect(ctxt);
-       llog_ctxt_put(ctxt);
-
-       RETURN(0);
-}
-
-static int mdc_llog_finish(struct obd_device *obd, int count)
-{
-       struct llog_ctxt *ctxt;
-
-       ENTRY;
-
-       ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
-       if (ctxt)
-               llog_cleanup(NULL, ctxt);
-
-       RETURN(0);
-}
-
 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
 {
         struct lustre_cfg *lcfg = buf;
@@ -3119,8 +3113,6 @@ struct obd_ops mdc_obd_ops = {
        .o_fid_fini         = client_fid_fini,
         .o_fid_alloc        = mdc_fid_alloc,
         .o_import_event     = mdc_import_event,
-        .o_llog_init        = mdc_llog_init,
-        .o_llog_finish      = mdc_llog_finish,
         .o_get_info         = mdc_get_info,
         .o_process_config   = mdc_process_config,
         .o_get_uuid         = mdc_get_uuid,

diff --git a/lustre/obdclass/llog_obd.c b/lustre/obdclass/llog_obd.c
index 2761698..1b4f541 100644 (file)
--- a/lustre/obdclass/llog_obd.c
+++ b/lustre/obdclass/llog_obd.c
@@ -246,31 +246,6 @@ int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
 }
 EXPORT_SYMBOL(llog_cancel);
 
-int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
-                  struct obd_device *disk_obd, int *index)
-{
-        int rc;
-        ENTRY;
-        OBD_CHECK_DT_OP(obd, llog_init, 0);
-        OBD_COUNTER_INCREMENT(obd, llog_init);
-
-        rc = OBP(obd, llog_init)(obd, olg, disk_obd, index);
-        RETURN(rc);
-}
-EXPORT_SYMBOL(obd_llog_init);
-
-int obd_llog_finish(struct obd_device *obd, int count)
-{
-        int rc;
-        ENTRY;
-        OBD_CHECK_DT_OP(obd, llog_finish, 0);
-        OBD_COUNTER_INCREMENT(obd, llog_finish);
-
-        rc = OBP(obd, llog_finish)(obd, count);
-        RETURN(rc);
-}
-EXPORT_SYMBOL(obd_llog_finish);
-
 /* context key constructor/destructor: llog_key_init, llog_key_fini */
 LU_KEY_INIT_FINI(llog, struct llog_thread_info);
 /* context key: llog_thread_key */

diff --git a/lustre/obdclass/lprocfs_status_server.c b/lustre/obdclass/lprocfs_status_server.c
index 2171404..a4541cf 100644 (file)
--- a/lustre/obdclass/lprocfs_status_server.c
+++ b/lustre/obdclass/lprocfs_status_server.c
@@ -436,8 +436,6 @@ void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata);
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
-       LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init);
-       LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish);
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
        LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);