LU-8066 mdt: migrate procfs files to sysfs

[fs/lustre-release.git] / lustre / obdclass / obd_config.c

diff --git a/lustre/obdclass/obd_config.c b/lustre/obdclass/obd_config.c
index 3ee0f6e..5cb44e7 100644 (file)
--- a/lustre/obdclass/obd_config.c
+++ b/lustre/obdclass/obd_config.c
@@ -1496,106 +1496,6 @@ ssize_t class_modify_config(struct lustre_cfg *lcfg, const char *prefix,
 }
 EXPORT_SYMBOL(class_modify_config);
 
-int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
-                            struct lustre_cfg *lcfg, void *data)
-{
-       struct lprocfs_vars *var;
-       struct file fakefile;
-       struct seq_file fake_seqfile;
-       char *key, *sval;
-       int i, keylen, vallen;
-       int matched = 0, j = 0;
-       int rc = 0;
-       int skip = 0;
-
-       ENTRY;
-
-       if (lcfg->lcfg_command != LCFG_PARAM) {
-               CERROR("Unknown command: %d\n", lcfg->lcfg_command);
-               RETURN(-EINVAL);
-       }
-
-       /* fake a seq file so that var->fops->write can work... */
-       fakefile.private_data = &fake_seqfile;
-       fake_seqfile.private = data;
-       /*
-        * e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
-        * or   lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
-        * or   lctl conf_param lustre-OST0000.osc.max_dirty_mb=36
-        */
-       for (i = 1; i < lcfg->lcfg_bufcount; i++) {
-               key = lustre_cfg_buf(lcfg, i);
-               /* Strip off prefix */
-               if (class_match_param(key, prefix, &key))
-                       /*
-                        * If the prefix doesn't match, return error so we
-                        * can pass it down the stack
-                        */
-                       RETURN(-ENOSYS);
-               sval = strchr(key, '=');
-               if (!sval || *(sval + 1) == 0) {
-                       CERROR("%s: can't parse param '%s' (missing '=')\n",
-                              lustre_cfg_string(lcfg, 0),
-                              lustre_cfg_string(lcfg, i));
-                       /* rc = -EINVAL;        continue parsing other params */
-                       continue;
-               }
-               keylen = sval - key;
-               sval++;
-               vallen = strlen(sval);
-               matched = 0;
-               j = 0;
-               /* Search proc entries */
-               while (lvars[j].name) {
-                       var = &lvars[j];
-                       if (class_match_param(key, var->name, NULL) == 0 &&
-                           keylen == strlen(var->name)) {
-                               matched++;
-                               rc = -EROFS;
-
-                               if (var->fops && var->fops->write) {
-                                       mm_segment_t oldfs;
-                                       oldfs = get_fs();
-                                       set_fs(KERNEL_DS);
-                                       rc = (var->fops->write)(&fakefile, sval,
-                                                               vallen, NULL);
-                                       set_fs(oldfs);
-                               }
-                               break;
-                       }
-                       j++;
-               }
-               if (!matched) {
-                       /*
-                        * It was upgraded from old MDT/OST device,
-                        * ignore the obsolete "sec_level" parameter.
-                        */
-                       if (strncmp("sec_level", key, keylen) == 0)
-                               continue;
-
-                       CERROR("%s: unknown config parameter '%s'\n",
-                              lustre_cfg_string(lcfg, 0),
-                              lustre_cfg_string(lcfg, i));
-                       /* rc = -EINVAL;        continue parsing other params */
-                       skip++;
-               } else if (rc < 0) {
-                       CERROR("%s: error writing parameter '%s': rc = %d\n",
-                              lustre_cfg_string(lcfg, 0), key, rc);
-                       rc = 0;
-               } else {
-                       CDEBUG(D_CONFIG, "%s: set parameter '%s'\n",
-                              lustre_cfg_string(lcfg, 0), key);
-               }
-       }
-
-       if (rc > 0)
-               rc = 0;
-       if (!rc && skip)
-               rc = skip;
-       RETURN(rc);
-}
-EXPORT_SYMBOL(class_process_proc_param);
-
 /*
  * Supplemental functions for config logs, it allocates lustre_cfg
  * buffers plus initialized llog record header at the beginning.