Whamcloud - gitweb
- name switch: "light" --> "lite"
[fs/lustre-release.git] / lustre / osc / osc_request.c
index e8721f0..b8869ba 100644 (file)
@@ -1,5 +1,18 @@
-/*
- * Copryright (C) 2001 Cluster File Systems, Inc.
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copryright (C) 2001, 2002 Cluster File Systems, Inc.
+ *
+ *  This code is issued under the GNU General Public License.
+ *  See the file COPYING in this distribution
+ *
+ *  Author Peter Braam <braam@clusterfs.com>
+ *
+ *  This server is single threaded at present (but can easily be multi
+ *  threaded). For testing and management it is treated as an
+ *  obd_device, although it does not export a full OBD method table
+ *  (the requests are coming in over the wire, so object target
+ *  modules do not have a full method table.)
  *
  */
 
 #include <linux/fs.h>
 #include <linux/stat.h>
 #include <asm/uaccess.h>
-#include <linux/vmalloc.h>
 #include <asm/segment.h>
 #include <linux/miscdevice.h>
 
-#include <linux/obd_support.h>
+#define DEBUG_SUBSYSTEM S_OSC
+
 #include <linux/obd_class.h>
 #include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
+#include <linux/lustre_net.h>
+#include <linux/obd_ost.h>
 
-extern int ost_queue_req(struct obd_device *, struct ost_request *);
+struct ptlrpc_client *osc_con2cl(struct obd_conn *conn)
+{
+        struct osc_obd *osc = &conn->oc_dev->u.osc;
+        return osc->osc_client;
+}
 
-struct ost_request *osc_prep_req(int size, int opcode)
+static int osc_connect(struct obd_conn *conn)
 {
-       struct ost_request *request;
-       int rc;
-       ENTRY; 
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
+
+        request = ptlrpc_prep_req(cl, OST_CONNECT, 0, NULL, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
 
-       request = (struct ost_request *)kmalloc(sizeof(*request), GFP_KERNEL); 
-       if (!request) { 
-               printk("osc_getattr: request allocation out of memory\n");
-               return NULL;
-       }
+        request->rq_replen = lustre_msg_size(1, &size);
 
-       rc = ost_pack_req(NULL, 0, NULL, 0, 
-                         &request->rq_reqhdr, &request->rq_req, 
-                         &request->rq_reqlen, &request->rq_reqbuf);
-       if (rc) { 
-               printk("llight request: cannot pack request %d\n", rc); 
-               return NULL;
-       }
-       request->rq_reqhdr->opc = opcode;
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
 
-       EXIT;
-       return request;
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        CDEBUG(D_INODE, "received connid %d\n", body->connid);
+
+        conn->oc_id = body->connid;
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
+        return rc;
 }
 
-extern int osc_queue_wait(struct obd_conn *conn, struct ost_request *req)
+static int osc_disconnect(struct obd_conn *conn)
 {
-       struct obd_device *client = conn->oc_dev;
-       struct obd_device *target = client->u.osc.osc_tgt;
-       int rc;
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
 
-       ENTRY;
-       /* set the connection id */
-       req->rq_req->connid = conn->oc_id;
+        request = ptlrpc_prep_req(cl, OST_DISCONNECT, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
 
-       CDEBUG(D_INODE, "tgt at %p, conn id %d, opcode %d request at: %p\n", 
-              &conn->oc_dev->u.osc.osc_tgt->u.ost, 
-              conn->oc_id, req->rq_reqhdr->opc, req);
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        body->connid = conn->oc_id;
 
-       /* XXX fix the race here (wait_for_event?)*/
-       /* hand the packet over to the server */
-       rc =  ost_queue_req(target, req); 
-       if (rc) { 
-               printk("osc_queue_wait: error %d, opcode %d\n", rc, 
-                      req->rq_reqhdr->opc); 
-               return -rc;
-       }
+        request->rq_replen = lustre_msg_size(1, &size);
 
-       /* wait for the reply */
-       init_waitqueue_head(&req->rq_wait_for_rep);
-       interruptible_sleep_on(&req->rq_wait_for_rep);
+        rc = ptlrpc_queue_wait(cl, request);
+        GOTO(out, rc);
+ out:
+        ptlrpc_free_req(request);
+        return rc;
+}
+
+static int osc_getattr(struct obd_conn *conn, struct obdo *oa)
+{
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
 
-       ost_unpack_rep(req->rq_repbuf, req->rq_replen, &req->rq_rephdr, 
-                      &req->rq_rep); 
-       printk("-->osc_queue_wait: buf %p len %d status %d\n", 
-              req->rq_repbuf, req->rq_replen, req->rq_rephdr->status); 
+        request = ptlrpc_prep_req(cl, OST_GETATTR, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
 
-       EXIT;
-       return req->rq_rephdr->status;
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+        body->oa.o_valid = ~0;
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
+        if (oa)
+                memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
+        return 0;
 }
 
-void osc_free_req(struct ost_request *request)
+static int osc_open(struct obd_conn *conn, struct obdo *oa)
 {
-       if (request->rq_repbuf)
-               kfree(request->rq_repbuf);
-       kfree(request);
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
+
+        request = ptlrpc_prep_req(cl, OST_OPEN, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+        if (body->oa.o_valid != (OBD_MD_FLMODE | OBD_MD_FLID))
+                LBUG();
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
+        if (oa)
+                memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
+        return 0;
 }
 
+static int osc_close(struct obd_conn *conn, struct obdo *oa)
+{
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
+
+        request = ptlrpc_prep_req(cl, OST_CLOSE, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+
+        request->rq_replen = lustre_msg_size(1, &size);
 
-int osc_connect(struct obd_conn *conn)
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        CDEBUG(D_INODE, "mode: %o\n", body->oa.o_mode);
+        if (oa)
+                memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
+        return 0;
+}
+
+static int osc_setattr(struct obd_conn *conn, struct obdo *oa)
 {
-       struct ost_request *request;
-       int rc; 
-       ENTRY;
-       
-       request = osc_prep_req(sizeof(*request), OST_CONNECT);
-       if (!request) { 
-               printk("osc_connect: cannot pack req!\n"); 
-               return -ENOMEM;
-       }
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
 
-       rc = osc_queue_wait(conn, request);
-       if (rc) { 
-               EXIT;
-               goto out;
-       }
-      
-       CDEBUG(D_INODE, "received connid %d\n", request->rq_rep->connid); 
+        request = ptlrpc_prep_req(cl, OST_SETATTR, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        GOTO(out, rc);
 
-       conn->oc_id = request->rq_rep->connid;
  out:
-       osc_free_req(request);
-       EXIT;
-       return rc;
-}
-
-int osc_getattr(struct obd_conn *conn, struct obdo *oa)
-{
-       struct ost_request *request;
-       int rc; 
-
-       request = osc_prep_req(sizeof(*request), OST_GETATTR);
-       if (!request) { 
-               printk("osc_connect: cannot pack req!\n"); 
-               return -ENOMEM;
-       }
-       
-       memcpy(&request->rq_req->oa, oa, sizeof(*oa));
-       request->rq_req->oa.o_valid = ~0;
-       
-       rc = osc_queue_wait(conn, request);
-       if (rc) { 
-               EXIT;
-               goto out;
-       }
-
-       CDEBUG(D_INODE, "mode: %o\n", request->rq_rep->oa.o_mode); 
-       if (oa) { 
-               memcpy(oa, &request->rq_rep->oa, sizeof(*oa));
-       }
+        ptlrpc_free_req(request);
+        return 0;
+}
+
+static int osc_create(struct obd_conn *conn, struct obdo *oa)
+{
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
+
+        if (!oa) {
+                CERROR("oa NULL\n");
+                RETURN(-EINVAL);
+        }
+        request = ptlrpc_prep_req(cl, OST_CREATE, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->oa.o_valid = ~0;
+        body->connid = conn->oc_id;
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
 
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
  out:
-       osc_free_req(request);
-       return 0;
+        ptlrpc_free_req(request);
+        return 0;
 }
 
+static int osc_punch(struct obd_conn *conn, struct obdo *oa, obd_size count,
+                     obd_off offset)
+{
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
+        ENTRY;
 
-/* mount the file system (secretly) */
-static int osc_setup(struct obd_device *obddev, obd_count len,
-                       void *buf)
-                       
+        if (!oa) {
+                CERROR("oa NULL\n");
+                RETURN(-EINVAL);
+        }
+        request = ptlrpc_prep_req(cl, OST_PUNCH, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+        body->oa.o_valid = ~0;
+        body->oa.o_size = offset;
+        body->oa.o_blocks = count;
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
+        return 0;
+}
+
+static int osc_destroy(struct obd_conn *conn, struct obdo *oa)
 {
-       struct obd_ioctl_data* data = buf;
-       struct osc_obd *osc = &obddev->u.osc;
+        struct ptlrpc_request *request;
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ost_body *body;
+        int rc, size = sizeof(*body);
         ENTRY;
 
-       if (data->ioc_dev  < 0 || data->ioc_dev > MAX_OBD_DEVICES) { 
-               EXIT;
-               return -ENODEV;
-       }
-
-        osc->osc_tgt = &obd_dev[data->ioc_dev];
-       printk("OSC: tgt %d ost at %p\n", data->ioc_dev, &osc->osc_tgt->u.ost); 
-        if ( ! (osc->osc_tgt->obd_flags & OBD_ATTACHED) || 
-             ! (osc->osc_tgt->obd_flags & OBD_SET_UP) ){
-                printk("device not attached or not set up (%d)\n", 
-                       data->ioc_dev);
-                EXIT;
-               return -EINVAL;
-        } 
-
-        MOD_INC_USE_COUNT;
-        EXIT; 
+        if (!oa) {
+                CERROR("oa NULL\n");
+                RETURN(-EINVAL);
+        }
+        request = ptlrpc_prep_req(cl, OST_DESTROY, 1, &size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        memcpy(&body->oa, oa, sizeof(*oa));
+        body->connid = conn->oc_id;
+        body->oa.o_valid = ~0;
+
+        request->rq_replen = lustre_msg_size(1, &size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        body = lustre_msg_buf(request->rq_repmsg, 0);
+        memcpy(oa, &body->oa, sizeof(*oa));
+
+        EXIT;
+ out:
+        ptlrpc_free_req(request);
         return 0;
-} 
+}
 
+int osc_sendpage(struct obd_conn *conn, struct ptlrpc_request *req,
+                 struct niobuf *dst, struct niobuf *src)
+{
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+
+        if (cl->cli_obd) {
+                /* local sendpage */
+                memcpy((char *)(unsigned long)dst->addr,
+                       (char *)(unsigned long)src->addr, src->len);
+        } else {
+                struct ptlrpc_bulk_desc *bulk;
+                int rc;
+
+                bulk = ptlrpc_prep_bulk(&cl->cli_server);
+                if (bulk == NULL)
+                        return -ENOMEM;
+
+                bulk->b_buf = (void *)(unsigned long)src->addr;
+                bulk->b_buflen = src->len;
+                bulk->b_xid = dst->xid;
+                rc = ptlrpc_send_bulk(bulk, OSC_BULK_PORTAL);
+                if (rc != 0) {
+                        CERROR("send_bulk failed: %d\n", rc);
+                        LBUG();
+                        return rc;
+                }
+                wait_event_interruptible(bulk->b_waitq,
+                                         ptlrpc_check_bulk_sent(bulk));
+
+                if (bulk->b_flags == PTL_RPC_INTR) {
+                        EXIT;
+                        /* FIXME: hey hey, we leak here. */
+                        return -EINTR;
+                }
+
+                OBD_FREE(bulk, sizeof(*bulk));
+        }
 
-static int osc_cleanup(struct obd_device * obddev)
+        return 0;
+}
+
+int osc_brw_read(struct obd_conn *conn, obd_count num_oa, struct obdo **oa,
+                 obd_count *oa_bufs, struct page **buf, obd_size *count,
+                 obd_off *offset, obd_flag *flags)
 {
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ptlrpc_request *request;
+        struct ost_body *body;
+        struct obd_ioobj ioo;
+        struct niobuf src;
+        int pages, rc, i, j, size[3] = {sizeof(*body)};
+        void *ptr1, *ptr2;
+        struct ptlrpc_bulk_desc **bulk;
         ENTRY;
 
-        if ( !(obddev->obd_flags & OBD_SET_UP) ) {
-                EXIT;
-                return 0;
+        size[1] = num_oa * sizeof(ioo);
+        pages = 0;
+        for (i = 0; i < num_oa; i++)
+                pages += oa_bufs[i];
+        size[2] = pages * sizeof(src);
+
+        OBD_ALLOC(bulk, pages * sizeof(*bulk));
+        if (bulk == NULL)
+                RETURN(-ENOMEM);
+
+        request = ptlrpc_prep_req(cl, OST_BRW, 3, size, NULL);
+        if (!request)
+                GOTO(out, rc = -ENOMEM);
+
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        body->data = OBD_BRW_READ;
+
+        ptr1 = lustre_msg_buf(request->rq_reqmsg, 1);
+        ptr2 = lustre_msg_buf(request->rq_reqmsg, 2);
+        for (pages = 0, i = 0; i < num_oa; i++) {
+                ost_pack_ioo(&ptr1, oa[i], oa_bufs[i]);
+                for (j = 0; j < oa_bufs[i]; j++, pages++) {
+                        bulk[pages] = ptlrpc_prep_bulk(&cl->cli_server);
+                        if (bulk[pages] == NULL)
+                                GOTO(out, rc = -ENOMEM);
+
+                        spin_lock(&cl->cli_lock);
+                        bulk[pages]->b_xid = cl->cli_xid++;
+                        spin_unlock(&cl->cli_lock);
+
+                        bulk[pages]->b_buf = kmap(buf[pages]);
+                        bulk[pages]->b_buflen = PAGE_SIZE;
+                        bulk[pages]->b_portal = OST_BULK_PORTAL;
+                        ost_pack_niobuf(&ptr2, bulk[pages]->b_buf,
+                                        offset[pages], count[pages],
+                                        flags[pages], bulk[pages]->b_xid);
+
+                        rc = ptlrpc_register_bulk(bulk[pages]);
+                        if (rc)
+                                GOTO(out, rc);
+                }
         }
 
-        MOD_DEC_USE_COUNT;
-        EXIT;
+        request->rq_replen = lustre_msg_size(1, size);
+        rc = ptlrpc_queue_wait(cl, request);
+        GOTO(out, rc);
+
+ out:
+        /* FIXME: if we've called ptlrpc_wait_bulk but rc != 0, we need to
+         * abort those bulk listeners. */
+
+        for (pages = 0, i = 0; i < num_oa; i++) {
+                for (j = 0; j < oa_bufs[i]; j++, pages++) {
+                        if (bulk[pages] == NULL)
+                                continue;
+                        kunmap(buf[pages]);
+                        OBD_FREE(bulk[pages], sizeof(**bulk));
+                }
+        }
+
+        OBD_FREE(bulk, pages * sizeof(*bulk));
+        ptlrpc_free_req(request);
+        return rc;
+}
+
+int osc_brw_write(struct obd_conn *conn, obd_count num_oa, struct obdo **oa,
+                  obd_count *oa_bufs, struct page **buf, obd_size *count,
+                  obd_off *offset, obd_flag *flags)
+{
+        struct ptlrpc_client *cl = osc_con2cl(conn);
+        struct ptlrpc_request *request;
+        struct obd_ioobj ioo;
+        struct ost_body *body;
+        struct niobuf *src;
+        int pages, rc, i, j, size[3] = {sizeof(*body)};
+        void *ptr1, *ptr2;
+        ENTRY;
+
+        size[1] = num_oa * sizeof(ioo);
+        pages = 0;
+        for (i = 0; i < num_oa; i++)
+                pages += oa_bufs[i];
+        size[2] = pages * sizeof(*src);
+
+        OBD_ALLOC(src, size[2]);
+        if (!src)
+                RETURN(-ENOMEM);
+
+        request = ptlrpc_prep_req(cl, OST_BRW, 3, size, NULL);
+        if (!request)
+                RETURN(-ENOMEM);
+        body = lustre_msg_buf(request->rq_reqmsg, 0);
+        body->data = OBD_BRW_WRITE;
+
+        ptr1 = lustre_msg_buf(request->rq_reqmsg, 1);
+        ptr2 = lustre_msg_buf(request->rq_reqmsg, 2);
+        for (pages = 0, i = 0; i < num_oa; i++) {
+                ost_pack_ioo(&ptr1, oa[i], oa_bufs[i]);
+                for (j = 0; j < oa_bufs[i]; j++, pages++) {
+                        ost_pack_niobuf(&ptr2, kmap(buf[pages]), offset[pages],
+                                        count[pages], flags[pages], 0);
+                }
+        }
+        memcpy(src, lustre_msg_buf(request->rq_reqmsg, 2), size[2]);
+
+        size[1] = pages * sizeof(struct niobuf);
+        request->rq_replen = lustre_msg_size(2, size);
+
+        rc = ptlrpc_queue_wait(cl, request);
+        if (rc)
+                GOTO(out, rc);
+
+        ptr2 = lustre_msg_buf(request->rq_repmsg, 1);
+        if (ptr2 == NULL)
+                GOTO(out, rc = -EINVAL);
+
+        if (request->rq_repmsg->buflens[1] != pages * sizeof(struct niobuf)) {
+                CERROR("buffer length wrong (%d vs. %d)\n",
+                       request->rq_repmsg->buflens[1],
+                       pages * sizeof(struct niobuf));
+                GOTO(out, rc = -EINVAL);
+        }
+
+        for (pages = 0, i = 0; i < num_oa; i++) {
+                for (j = 0; j < oa_bufs[i]; j++, pages++) {
+                        struct niobuf *dst;
+                        ost_unpack_niobuf(&ptr2, &dst);
+                        osc_sendpage(conn, request, dst, &src[pages]);
+                }
+        }
+        OBD_FREE(src, size[2]);
+ out:
+        for (pages = 0, i = 0; i < num_oa; i++)
+                for (j = 0; j < oa_bufs[i]; j++, pages++)
+                        kunmap(buf[n]);
+
+        ptlrpc_free_req(request);
         return 0;
 }
 
+int osc_brw(int rw, struct obd_conn *conn, obd_count num_oa,
+              struct obdo **oa, obd_count *oa_bufs, struct page **buf,
+              obd_size *count, obd_off *offset, obd_flag *flags)
+{
+        if (rw == OBD_BRW_READ)
+                return osc_brw_read(conn, num_oa, oa, oa_bufs, buf, count,
+                                    offset, flags);
+        else
+                return osc_brw_write(conn, num_oa, oa, oa_bufs, buf, count,
+                                     offset, flags);
+}
+
+/* mount the file system (secretly) */
+static int osc_setup(struct obd_device *obddev, obd_count len,
+                        void *buf)
+
+{
+        struct osc_obd *osc = &obddev->u.osc;
+        struct obd_ioctl_data *data = (struct obd_ioctl_data *)buf;
+        int rc;
+        int dev = data->ioc_dev;
+        ENTRY;
+
+        OBD_ALLOC(osc->osc_client, sizeof(*osc->osc_client));
+        if (osc->osc_client == NULL)
+                RETURN(-ENOMEM);
+
+        ptlrpc_init_client(dev, OST_REQUEST_PORTAL, OSC_REPLY_PORTAL,
+                                   osc->osc_client);
+        rc = ptlrpc_connect_client(dev, "ost", osc->osc_client);
+
+        if (rc == 0)
+                MOD_INC_USE_COUNT;
+        RETURN(rc);
+}
+
+static int osc_cleanup(struct obd_device * obddev)
+{
+        struct osc_obd *osc = &obddev->u.osc;
+
+        if (osc->osc_client != NULL)
+                OBD_FREE(osc->osc_client, sizeof(*osc->osc_client));
+
+        MOD_DEC_USE_COUNT;
+        return 0;
+}
 
-struct obd_ops osc_obd_ops = { 
-       o_setup:   osc_setup,
-       o_cleanup: osc_cleanup, 
-       o_getattr: osc_getattr,
-       o_connect: osc_connect
+struct obd_ops osc_obd_ops = {
+        o_setup:   osc_setup,
+        o_cleanup: osc_cleanup,
+        o_create: osc_create,
+        o_destroy: osc_destroy,
+        o_getattr: osc_getattr,
+        o_setattr: osc_setattr,
+        o_open: osc_open,
+        o_close: osc_close,
+        o_connect: osc_connect,
+        o_disconnect: osc_disconnect,
+        o_brw: osc_brw,
+        o_punch: osc_punch
 };
 
 static int __init osc_init(void)
 {
         obd_register_type(&osc_obd_ops, LUSTRE_OSC_NAME);
-       return 0;
+        return 0;
 }
 
 static void __exit osc_exit(void)
 {
-       obd_unregister_type(LUSTRE_OSC_NAME);
+        obd_unregister_type(LUSTRE_OSC_NAME);
 }
 
 MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
 MODULE_DESCRIPTION("Lustre Object Storage Client (OSC) v1.0");
-MODULE_LICENSE("GPL"); 
+MODULE_LICENSE("GPL");
 
 module_init(osc_init);
 module_exit(osc_exit);
-