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Lproc-snmp code drop
[fs/lustre-release.git] / lustre / obdclass / class_obd.c
index b1f3c68..2569fb2 100644 (file)
@@ -31,6 +31,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <asm/io.h>
+#include <asm/ioctls.h>
 #include <asm/system.h>
 #include <asm/poll.h>
 #include <asm/uaccess.h>
@@ -42,7 +43,7 @@
 #include <linux/obd_class.h>
 #include <linux/lustre_debug.h>
 #include <linux/smp_lock.h>
-#include <linux/lprocfs.h>
+#include <linux/lprocfs_status.h>
 
 struct semaphore obd_conf_sem;   /* serialize configuration commands */
 struct obd_device obd_dev[MAX_OBD_DEVICES];
@@ -55,279 +56,6 @@ unsigned long obd_timeout = 100;
 char obd_recovery_upcall[128] = "/usr/lib/lustre/ha_assist";
 
 extern struct obd_type *class_nm_to_type(char *nm);
-/*
- * LProcFS specific data structures. These define the namespace for
- * the various device classes. We will need to distribute these
- * later, to individual modules (e.g. MDS, MDC etc)
- */
-
-#ifdef LPROCFS_EXISTS
-
-/*
- * Common OBD namespace for lprocFS (these are used very often)
- */
-
-char* obd_dir_nm_1[]= {
-        "mgmt%",
-        "mgmt/setup",
-        "mgmt/cleanup",
-        "mgmt/connect",
-        "mgmt/disconnect",
-        0
-};
-
-lprocfs_vars_t obd_var_nm_1[]= {
-        {"num_ops", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"min_time", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"max_time", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"sum_time", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"0", 0, 0}
-};
-
-
-/*
- *  MDC Spcific namespace for lprocFS
- */
-
-char *mdc_dir_nm_1[]= {
-        "reint",
-        "getstatus",
-        "getattr",
-        "setattr",
-        "open",
-        "readpage",
-        "create",
-        "unlink",
-        "link",
-        "rename",
-        0
-};
-
-/*
- * Create the MDC groupings
- */
-lprocfs_group_t lprocfs_mdc_nm[]= {
-
-        {obd_dir_nm_1, obd_var_nm_1, e_generic},
-        {mdc_dir_nm_1, obd_var_nm_1, e_generic},
-        {0, 0, 0}
-};
-
-/*
- * MDS Device Groupings
- */
-char *mds_dir_nm_1[]={
-        "getstatus",
-        "connect",
-        "disconnect_callback",
-        "getattr",
-        "readpage",
-        "open",
-        "close",
-        "create",
-        "unlink",
-        "link",
-        "rename",
-        "reint%",
-        "reint/summary",
-        "reint/setattr",
-        "reint/create",
-        "reint/unlink",
-        "reint/link",
-        "reint/rename",
-        "reint/recreate",
-        0
-};
-
-char *mds_dir_nm_2[]={
-        "mstatfs",
-        0
-};
-
-
-lprocfs_vars_t mds_var_nm_2[]={
-        {"f_type", rd_other, wr_other},
-        {"f_bsize",rd_other, wr_other},
-        {"f_blocks",rd_other, wr_other},
-        {"f_bfree",rd_other, wr_other},
-        {"f_bavail",rd_other, wr_other},
-        {"uuid",rd_string, wr_string},
-        {"0", 0, 0}
-};
-
-
-lprocfs_group_t lprocfs_mds_nm[]={
-         {obd_dir_nm_1, obd_var_nm_1, e_generic},
-         {mds_dir_nm_1, obd_var_nm_1, e_generic},
-         {mds_dir_nm_2, mds_var_nm_2, e_specific},
-         {0, 0, 0}
-};
-
-/*
- * OSC Namespace
- */
-
-char* osc_dir_nm_1[]={
-        "create",
-        "destroy",
-        "getattr",
-        "setattr",
-        "open",
-        "close",
-        "brw",
-        "punch",
-        "summary",
-        "cancel",
-        0
-};
-
-lprocfs_group_t lprocfs_osc_nm[]={
-         {obd_dir_nm_1, obd_var_nm_1, e_generic},
-         {osc_dir_nm_1, obd_var_nm_1, e_generic},
-         {0, 0, 0}
-};
-
-
-/*
- * OST, LOV, OBD_FILTER namespace
- * Note: These namespaces are exactly similar to the osc_dir_namespace
- * Hence, I use the osc namespace as the base class and add only
- * those attributes that are missing in osc_dir_namespace.
- */
-
-char *ost_lov_obdfilter_dir_nm_1[]={
-        "getinfo",
-        0
-
-};
-
-char *ost_lov_obdfilter_dir_nm_2[]={
-        "ostatfs",
-        0
-};
-
-lprocfs_vars_t ost_lov_obdfilter_var_nm_2[]={
-        {"f_type", rd_other, wr_other},
-        {"f_bsize",rd_other, wr_other},
-        {"f_blocks",rd_other, wr_other},
-        {"f_bfree",rd_other, wr_other},
-        {"f_bavail",rd_other, wr_other},
-        {"f_objects", rd_other, wr_other},
-        {"f_ofree", rd_other, wr_other},
-        {"f_objectgroups", rd_other, wr_other},
-        {"f_uuid", rd_string, wr_string},
-        {"0", 0, 0}
-};
-
-
-lprocfs_group_t lprocfs_ost_lov_obdf_nm[]={
-         {obd_dir_nm_1, obd_var_nm_1, e_generic},
-         {osc_dir_nm_1, obd_var_nm_1, e_generic},
-         {ost_lov_obdfilter_dir_nm_1, obd_var_nm_1, e_generic},
-         {ost_lov_obdfilter_dir_nm_2, ost_lov_obdfilter_var_nm_2, e_specific},
-         {0, 0, 0}
-};
-
-/*
- * LDLM Device namespace
- */
-
-
-char* ldlm_dir_nm_1[]={
-        "locks%",
-        "locks/enqueus",
-        "locks/cancels",
-        "locks/converts",
-        "locks/matches",
-        0
-};
-
-lprocfs_vars_t ldlm_var_nm_1[]= {
-        {"num_total", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"num_zerolatency", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"num_zerolatency_inflight", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"num_zerolatency_done", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"nonzero_mintime", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"nonzero_maxtime", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"nonzero_sumtime", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"0", 0, 0}
-
-};
-
-lprocfs_group_t lprocfs_ldlm_nm[]={
-         {obd_dir_nm_1, obd_var_nm_1, e_generic},
-         {ldlm_dir_nm_1, ldlm_var_nm_1, e_generic},
-         {0, 0, 0}
-};
-
-/*
- * Note: Need to add namespace for breaking out locks by device class
- */
-
-/*
- * PTLRPC Namespace
- */
-char* ptlrpc_dir_nm_1[]={
-        "counters",
-        0
-};
-
-lprocfs_vars_t ptlrpc_var_nm_1[]={
-        {"msgs_alloc", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"msgs_max", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"recv_count", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"recv_length", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"send_count", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"send_length", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"portal_kmemory", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"0", 0, 0}
-};
-
-char* ptlrpc_dir_nm_2[] = {
-        "network",
-        0
-};
-
-lprocfs_vars_t ptlrpc_var_nm_2[] = {
-        {"type", rd_string, wr_string},
-        {"mtu", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"rxpackets", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"txpackets", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"txbytes", lprocfs_ll_rd, lprocfs_ll_wr},
-        {"0", 0, 0}
-};
-
-lprocfs_group_t lprocfs_ptlrpc_nm[]={
-         {obd_dir_nm_1, obd_var_nm_1, e_generic},
-         {ptlrpc_dir_nm_1, ptlrpc_var_nm_1, e_generic},
-         {ptlrpc_dir_nm_2, ptlrpc_var_nm_2, e_specific},
-         {0, 0, 0}
-};
-
-
-/*
- * Building the entire device namespace. This will be used during attach and
- * detach to associate the namespace with the class of the device
- */
-
-lprocfs_obd_nm_t obd_nm[]={
-        {"mdc", lprocfs_mdc_nm, sizeof(struct lprofiler_gen)},
-        {"mds", lprocfs_mds_nm, sizeof(struct lprofiler_gen)},
-        {"osc", lprocfs_osc_nm, sizeof(struct lprofiler_gen)},
-        {"ost", lprocfs_ost_lov_obdf_nm, sizeof(struct lprofiler_gen)},
-        {"lov", lprocfs_ost_lov_obdf_nm, sizeof(struct lprofiler_gen)},
-        {"obdfilter", lprocfs_ost_lov_obdf_nm, sizeof(struct lprofiler_gen)},
-        {"obdecho", lprocfs_ost_lov_obdf_nm, sizeof(struct lprofiler_gen)},
-        {"ldlm", lprocfs_ldlm_nm, sizeof(struct lprofiler_ldlm)},
-        {"ptlrpc", lprocfs_ptlrpc_nm, sizeof(struct lprofiler_ptlrpc)},
-        {"0", 0, 0}
-};
-
-#else
-
-lprocfs_obd_nm_t* obd_nm=0;
-
-#endif
 
 /*  opening /dev/obd */
 static int obd_class_open(struct inode * inode, struct file * file)
@@ -335,6 +63,8 @@ static int obd_class_open(struct inode * inode, struct file * file)
         ENTRY;
 
         file->private_data = NULL;
+        CDEBUG(D_IOCTL, "MOD_INC_USE for open: count = %d\n",
+               atomic_read(&(THIS_MODULE)->uc.usecount));
         MOD_INC_USE_COUNT;
         RETURN(0);
 }
@@ -344,9 +74,12 @@ static int obd_class_release(struct inode * inode, struct file * file)
 {
         ENTRY;
 
+        // XXX drop lsm, connections here
         if (file->private_data)
                 file->private_data = NULL;
 
+        CDEBUG(D_IOCTL, "MOD_DEC_USE for close: count = %d\n",
+               atomic_read(&(THIS_MODULE)->uc.usecount) - 1);
         MOD_DEC_USE_COUNT;
         RETURN(0);
 }
@@ -365,6 +98,28 @@ inline void obd_conn2data(struct obd_ioctl_data *data, struct lustre_handle *con
         data->ioc_cookie = conn->cookie;
 }
 
+static void forcibly_detach_exports(struct obd_device *obd)
+{
+        int rc;
+        struct list_head *tmp, *n;
+        struct lustre_handle fake_conn;
+
+        CDEBUG(D_IOCTL, "OBD device %d (%p) has exports, "
+               "disconnecting them", obd->obd_minor, obd);
+        list_for_each_safe(tmp, n, &obd->obd_exports) {
+                struct obd_export *exp = list_entry(tmp, struct obd_export,
+                                                    exp_obd_chain);
+                fake_conn.addr = (__u64)(unsigned long)exp;
+                fake_conn.cookie = exp->exp_cookie;
+                rc = obd_disconnect(&fake_conn);
+                if (rc) {
+                        CDEBUG(D_IOCTL, "disconnecting export %p failed: %d\n",
+                               exp, rc);
+                } else {
+                        CDEBUG(D_IOCTL, "export %p disconnected\n", exp);
+                }
+        }
+}
 
 /* to control /dev/obd */
 static int obd_class_ioctl (struct inode * inode, struct file * filp,
@@ -379,7 +134,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
         int rw = OBD_BRW_READ;
         int err = 0;
         int serialised = 0;
-        int l_idx = 0;
+
         ENTRY;
 
         switch (cmd)
@@ -455,7 +210,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                         }
                 }
 
-                err = copy_to_user((int *)arg, data, len);
+                err = copy_to_user((void *)arg, data, len);
                 GOTO(out, err);
         }
 
@@ -486,7 +241,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
 
                 CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
                        dev);
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
@@ -516,7 +271,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
 
                 CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
                        dev);
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
@@ -539,7 +294,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                 if (dev == -1)
                         GOTO(out, err=-EINVAL);
 
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
@@ -582,17 +337,6 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                 INIT_LIST_HEAD(&obd->obd_imports);
                 spin_lock_init(&obd->obd_dev_lock);
 
-                /* do the attach */
-                if (OBP(obd, attach))
-                        err = OBP(obd,attach)(obd, sizeof(*data), data);
-                if (err) {
-                        obd->obd_type = NULL;
-                } else {
-                        obd->obd_flags |= OBD_ATTACHED;
-
-                        type->typ_refcnt++;
-                        CDEBUG(D_IOCTL, "OBD: dev %d attached type %s\n",
-                               obd->obd_minor, data->ioc_inlbuf1);
                         if (data->ioc_inlbuf2) {
                                 int len = strlen(data->ioc_inlbuf2) + 1;
                                 OBD_ALLOC(obd->obd_name, len);
@@ -601,14 +345,9 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                                         LBUG();
                                 }
                                 memcpy(obd->obd_name, data->ioc_inlbuf2, len);
-                                /* obd->obd_proc_entry =
-                                        proc_lustre_register_obd_device(obd);
-                                */
                         } else {
                                 CERROR("WARNING: unnamed obd device\n");
-                                obd->obd_proc_entry = NULL;
                         }
-
                         if (data->ioc_inlbuf3) {
                                 int len = strlen(data->ioc_inlbuf3);
                                 if (len >= sizeof(obd->obd_uuid)) {
@@ -621,17 +360,23 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                                 }
                                 memcpy(obd->obd_uuid, data->ioc_inlbuf3, len);
                         }
-                        /* Get the LprocFS namespace for this device class */
-                        /*
-                        l_idx = lprocfs_get_nm(data->ioc_inlbuf1, obd_nm);
-                        if (l_idx < 0) {
-                                CERROR("Non-existent device class"
-                                       "or proc/lustre not compiled \n");
+                /* do the attach */
+                if (OBP(obd, attach))
+                        err = OBP(obd,attach)(obd, sizeof(*data), data);
+                if (err) {
+                        if(data->ioc_inlbuf2)                                                
+                                OBD_FREE(obd->obd_name, strlen(obd->obd_name)+1);
+                        obd->obd_type = NULL;
+
                         } else {
-                                lprocfs_reg_dev(obd, obd_nm[l_idx].obd_names,
-                                                obd_nm[l_idx].cntr_blk_sz);
-                        }
-                        */
+                        obd->obd_flags |= OBD_ATTACHED;
+
+                        type->typ_refcnt++;
+                        CDEBUG(D_IOCTL, "OBD: dev %d attached type %s\n",
+                               obd->obd_minor, data->ioc_inlbuf1);
+
+                        CDEBUG(D_IOCTL, "MOD_INC_USE for attach: count = %d\n",
+                               atomic_read(&(THIS_MODULE)->uc.usecount));
                         MOD_INC_USE_COUNT;
                 }
 
@@ -648,32 +393,29 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                         CERROR("OBD device %d not attached\n", obd->obd_minor);
                         GOTO(out, err=-ENODEV);
                 }
-#warning FIXME: Mike, we probably need some sort of "force detach" here
-                if (!list_empty(&obd->obd_exports) ) {
-                        CERROR("OBD device %d (%p) has exports\n",
-                               obd->obd_minor, obd);
-                        GOTO(out, err=-EBUSY);
+                if (!list_empty(&obd->obd_exports)) {
+                        if (!data->ioc_inlbuf1 || data->ioc_inlbuf1[0] != 'F') {
+                                CERROR("OBD device %d (%p) has exports\n",
+                                       obd->obd_minor, obd);
+                                GOTO(out, err=-EBUSY);
+                        }
+                        forcibly_detach_exports(obd);
                 }
+                   if (OBP(obd, detach))
+                        err=OBP(obd,detach)(obd);
 
-                /*
-                if (lprocfs_dereg_dev(obd) != LPROCFS_SUCCESS) {
-                        CERROR("Could not remove /proc entry\n");
-                }
-                */
                 if (obd->obd_name) {
                         OBD_FREE(obd->obd_name, strlen(obd->obd_name)+1);
                         obd->obd_name = NULL;
                 }
-                /*
-                if (obd->obd_proc_entry)
-                        proc_lustre_release_obd_device(obd);
-                */
 
                 obd->obd_flags &= ~OBD_ATTACHED;
                 obd->obd_type->typ_refcnt--;
                 obd->obd_type = NULL;
+                CDEBUG(D_IOCTL, "MOD_DEC_USE for detach: count = %d\n",
+                       atomic_read(&(THIS_MODULE)->uc.usecount) - 1);
                 MOD_DEC_USE_COUNT;
-                GOTO(out, err=0);
+                GOTO(out, err = 0);
         }
 
         case OBD_IOC_SETUP: {
@@ -721,14 +463,15 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                 char * cluuid = "OBD_CLASS_UUID";
                 obd_data2conn(&conn, data);
 
-                err = obd_connect(&conn, obd, cluuid);
+                err = obd_connect(&conn, obd, cluuid, NULL, NULL);
 
                 CDEBUG(D_IOCTL, "assigned export "LPX64"\n", conn.addr);
                 obd_conn2data(data, &conn);
                 if (err)
                         GOTO(out, err);
 
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                err = copy_to_user((void *)arg, data, sizeof(*data));
+                // XXX save connection data into file handle
                 GOTO(out, err);
         }
 
@@ -739,19 +482,20 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
         }
 
         case OBD_IOC_DEC_USE_COUNT: {
+                CDEBUG(D_IOCTL, "MOD_DEC_USE for force dec: count = %d\n",
+                       atomic_read(&(THIS_MODULE)->uc.usecount) - 1);
                 MOD_DEC_USE_COUNT;
                 GOTO(out, err=0);
         }
 
         case OBD_IOC_CREATE: {
-                struct lov_stripe_md *ea = NULL;
+                struct lov_stripe_md *lsm = NULL;
                 obd_data2conn(&conn, data);
 
-                err = obd_create(&conn, &data->ioc_obdo1, &ea);
-                if (err)
-                        GOTO(out, err);
-
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+#warning FIXME: save lsm into file handle for other ops, release on close
+                err = obd_create(&conn, &data->ioc_obdo1, &lsm);
+                if (!err)
+                        err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
@@ -759,20 +503,16 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
 
                 obd_data2conn(&conn, data);
                 err = obd_getattr(&conn, &data->ioc_obdo1, NULL);
-                if (err)
-                        GOTO(out, err);
-
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                if (!err)
+                        err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
         case OBD_IOC_SETATTR: {
                 obd_data2conn(&conn, data);
                 err = obd_setattr(&conn, &data->ioc_obdo1, NULL);
-                if (err)
-                        GOTO(out, err);
-
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                if (!err)
+                        err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
@@ -781,34 +521,34 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                 obd_data2conn(&conn, data);
 
                 err = obd_destroy(&conn, &data->ioc_obdo1, NULL);
-                if (err)
-                        GOTO(out, err);
-
-                err = copy_to_user((int *)arg, data, sizeof(*data));
+                if (!err)
+                        err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
         case OBD_IOC_OPEN: {
-                struct lov_stripe_md *md; // XXX fill in md from create
+                struct lov_stripe_md *lsm = NULL; // XXX fill in from create
 
                 obd_data2conn(&conn, data);
-                err = obd_open(&conn, &data->ioc_obdo1, NULL);
+                err = obd_open(&conn, &data->ioc_obdo1, lsm);
+                if (!err)
+                        err = copy_to_user((void *)arg, data, sizeof(*data));
                 GOTO(out, err);
         }
 
         case OBD_IOC_CLOSE: {
-                struct lov_stripe_md *md; // XXX fill in md from create
+                struct lov_stripe_md *lsm = NULL; // XXX fill in from create
 
                 obd_data2conn(&conn, data);
-                obd_data2conn(&conn, data);
-                err = obd_close(&conn, &data->ioc_obdo1, NULL);
+                err = obd_close(&conn, &data->ioc_obdo1, lsm);
                 GOTO(out, err);
         }
 
         case OBD_IOC_BRW_WRITE:
                 rw = OBD_BRW_WRITE;
         case OBD_IOC_BRW_READ: {
-                struct lov_stripe_md smd;
+                struct lov_stripe_md tmp_lsm; // XXX fill in from create
+                struct lov_stripe_md *lsm = &tmp_lsm; // XXX fill in from create
                 struct io_cb_data *cbd = ll_init_cb();
                 obd_count       pages = 0;
                 struct brw_page *pga, *pgp;
@@ -834,8 +574,8 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                         GOTO(brw_free, err = -ENOMEM);
                 }
 
-                memset(&smd, 0, sizeof(smd));
-                smd.lmd_object_id = id;
+                memset(lsm, 0, sizeof(*lsm)); // XXX don't do this later
+                lsm->lsm_object_id = id; // ensure id == lsm->lsm_object_id
 
                 for (j = 0, pgp = pga; j < pages; j++, off += PAGE_SIZE, pgp++){
                         pgp->pg = alloc_pages(gfp_mask, 0);
@@ -861,7 +601,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                         }
                 }
 
-                err = obd_brw(rw, &conn, &smd, j, pga, ll_sync_io_cb, cbd);
+                err = obd_brw(rw, &conn, lsm, j, pga, ll_sync_io_cb, cbd);
                 if (err)
                         CERROR("test_brw: error from obd_brw: err = %d\n", err);
                 EXIT;
@@ -891,7 +631,7 @@ static int obd_class_ioctl (struct inode * inode, struct file * filp,
                 if (err)
                         GOTO(out, err);
 
-                err = copy_to_user((int *)arg, data, len);
+                err = copy_to_user((void *)arg, data, len);
                 GOTO(out, err);
         }
 
@@ -921,8 +661,6 @@ static struct miscdevice obd_psdev = {
 };
 
 void (*class_signal_connection_failure)(struct ptlrpc_connection *);
-int (*mds_destroy_export)(struct obd_export *exp);
-int (*ldlm_destroy_export)(struct obd_export *exp);
 
 EXPORT_SYMBOL(obd_dev);
 EXPORT_SYMBOL(obdo_cachep);
@@ -930,6 +668,7 @@ EXPORT_SYMBOL(obd_memory);
 EXPORT_SYMBOL(obd_fail_loc);
 EXPORT_SYMBOL(obd_timeout);
 EXPORT_SYMBOL(obd_recovery_upcall);
+EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
 
 EXPORT_SYMBOL(class_register_type);
 EXPORT_SYMBOL(class_unregister_type);
@@ -951,10 +690,9 @@ EXPORT_SYMBOL(class_uuid_unparse);
 //EXPORT_SYMBOL(class_multi_cleanup);
 
 EXPORT_SYMBOL(class_signal_connection_failure);
-EXPORT_SYMBOL(mds_destroy_export);
-EXPORT_SYMBOL(ldlm_destroy_export);
 EXPORT_SYMBOL(ll_sync_io_cb);
 EXPORT_SYMBOL(ll_init_cb);
+EXPORT_SYMBOL(class_nm_to_type);
 
 static int __init init_obdclass(void)
 {
@@ -977,15 +715,19 @@ static int __init init_obdclass(void)
                 obd->obd_minor = i;
 
         err = obd_init_caches();
+        
         if (err)
                 return err;
         obd_sysctl_init();
+        
+        err=lprocfs_reg_main();
+        
         return 0;
 }
 
 static void __exit cleanup_obdclass(void)
 {
-        int i;
+        int i, err;
         ENTRY;
 
         misc_deregister(&obd_psdev);
@@ -1000,6 +742,9 @@ static void __exit cleanup_obdclass(void)
 
         obd_cleanup_caches();
         obd_sysctl_clean();
+        
+        err = lprocfs_dereg_main();
+
         CERROR("obd memory leaked: %ld bytes\n", obd_memory);
         EXIT;
 }