LU-8066 mdt: migrate procfs files to sysfs

[fs/lustre-release.git] / lustre / mdt / mdt_handler.c

diff --git a/lustre/mdt/mdt_handler.c b/lustre/mdt/mdt_handler.c
index 5ae5c63..fd323bf 100644 (file)
--- a/lustre/mdt/mdt_handler.c
+++ b/lustre/mdt/mdt_handler.c
@@ -5255,8 +5255,8 @@ static void mdt_fini(const struct lu_env *env, struct mdt_device *m)
        ping_evictor_stop();
 
        /* Remove the HSM /proc entry so the coordinator cannot be
-        * restarted by a user while it's shutting down. */
-       hsm_cdt_procfs_fini(m);
+        * restarted by a user while it's shutting down.
+        */
        mdt_hsm_cdt_stop(m);
 
        mdt_llog_ctxt_unclone(env, m, LLOG_AGENT_ORIG_CTXT);
@@ -5276,7 +5276,7 @@ static void mdt_fini(const struct lu_env *env, struct mdt_device *m)
        /* Calling the cleanup functions in the same order as in the mdt_init0
         * error path
         */
-       mdt_procfs_fini(m);
+       mdt_tunables_fini(m);
 
        target_recovery_fini(obd);
        upcall_cache_cleanup(m->mdt_identity_cache);
@@ -5526,7 +5526,7 @@ static int mdt_init0(const struct lu_env *env, struct mdt_device *m,
                GOTO(err_free_hsm, rc);
        }
 
-       rc = mdt_procfs_init(m, dev);
+       rc = mdt_tunables_init(m, dev);
        if (rc) {
                CERROR("Can't init MDT lprocfs, rc %d\n", rc);
                GOTO(err_recovery, rc);
@@ -5554,7 +5554,7 @@ static int mdt_init0(const struct lu_env *env, struct mdt_device *m,
 
        RETURN(0);
 err_procfs:
-       mdt_procfs_fini(m);
+       mdt_tunables_fini(m);
 err_recovery:
        upcall_cache_cleanup(m->mdt_identity_cache);
        m->mdt_identity_cache = NULL;
@@ -5612,12 +5612,12 @@ static int mdt_process_config(const struct lu_env *env,
 
        switch (cfg->lcfg_command) {
        case LCFG_PARAM: {
-               struct obd_device          *obd = d->ld_obd;
-
+               struct obd_device *obd = d->ld_obd;
                /* For interoperability */
-               struct cfg_interop_param   *ptr = NULL;
-               struct lustre_cfg          *old_cfg = NULL;
-               char                       *param = NULL;
+               struct cfg_interop_param *ptr = NULL;
+               struct lustre_cfg *old_cfg = NULL;
+               char *param = NULL;
+               ssize_t count;
 
                param = lustre_cfg_string(cfg, 1);
                if (param == NULL) {
@@ -5646,17 +5646,22 @@ static int mdt_process_config(const struct lu_env *env,
                        }
                }
 
-               rc = class_process_proc_param(PARAM_MDT, obd->obd_vars,
-                                             cfg, obd);
-               if (rc > 0 || rc == -ENOSYS) {
+               count = class_modify_config(cfg, PARAM_MDT,
+                                           &obd->obd_kset.kobj);
+               if (count < 0) {
+                       struct coordinator *cdt = &m->mdt_coordinator;
+
                        /* is it an HSM var ? */
-                       rc = class_process_proc_param(PARAM_HSM,
-                                                     hsm_cdt_get_proc_vars(),
-                                                     cfg, obd);
-                       if (rc > 0 || rc == -ENOSYS)
+                       count = class_modify_config(cfg, PARAM_HSM,
+                                                   &cdt->cdt_hsm_kobj);
+                       if (count < 0)
                                /* we don't understand; pass it on */
                                rc = next->ld_ops->ldo_process_config(env, next,
                                                                      cfg);
+                       else
+                               rc = count > 0 ? 0 : count;
+               } else {
+                       rc = count > 0 ? 0 : count;
                }
 
                if (old_cfg)