-/*
- * ost/ost_handler.c
- * Storage Target Handling functions
- *
- * Lustre Object Server Module (OST)
- *
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
* Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * Author: Peter J. Braam <braam@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ *
+ * This file is part of Lustre, http://www.lustre.org.
*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ * Lustre is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * Lustre is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Lustre; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Storage Target Handling functions
+ * Lustre Object Server Module (OST)
*
- * by 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.)
- *
*/
#define EXPORT_SYMTAB
+#define DEBUG_SUBSYSTEM S_OST
-#include <linux/version.h>
#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/ext2_fs.h>
-#include <linux/quotaops.h>
-#include <asm/unistd.h>
-
-#define DEBUG_SUBSYSTEM S_OST
+#include <linux/obd_ost.h>
+#include <linux/lustre_net.h>
+#include <linux/lustre_dlm.h>
+#include <linux/init.h>
+#include <linux/lprocfs_status.h>
-#include <linux/obd_support.h>
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/obd_class.h>
+extern lprocfs_vars_t status_var_nm_1[];
+extern lprocfs_vars_t status_class_var[];
-// for testing
-static int ost_queue_req(struct obd_device *obddev, struct ptlrpc_request *req)
+static int ost_destroy(struct ptlrpc_request *req)
{
- struct ptlrpc_request *srv_req;
- struct ost_obd *ost = &obddev->u.ost;
-
- if (!ost) {
- EXIT;
- return -1;
- }
-
- OBD_ALLOC(srv_req, sizeof(*srv_req));
- if (!srv_req) {
- EXIT;
- return -ENOMEM;
- }
-
- CDEBUG(0, "---> OST at %d %p, incoming req %p, srv_req %p\n",
- __LINE__, ost, req, srv_req);
-
- memset(srv_req, 0, sizeof(*req));
-
- /* move the request buffer */
- srv_req->rq_reqbuf = req->rq_reqbuf;
- srv_req->rq_reqlen = req->rq_reqlen;
- srv_req->rq_ost = ost;
-
- /* remember where it came from */
- srv_req->rq_reply_handle = req;
-
- list_add(&srv_req->rq_list, &ost->ost_reqs);
- wake_up(&ost->ost_waitq);
- return 0;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body;
+ int rc, size = sizeof(*body);
+ ENTRY;
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
+
+ req->rq_status = obd_destroy(conn, &body->oa, NULL);
+ RETURN(0);
}
-int ost_reply(struct obd_device *obddev, struct ptlrpc_request *req)
+static int ost_getattr(struct ptlrpc_request *req)
{
- struct ptlrpc_request *clnt_req = req->rq_reply_handle;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
- ENTRY;
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
- if (req->rq_ost->ost_service != NULL) {
- /* This is a request that came from the network via portals. */
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
- /* FIXME: we need to increment the count of handled events */
- ptl_send_buf(req, &req->rq_peer, OST_REPLY_PORTAL, 0);
- } else {
- /* This is a local request that came from another thread. */
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_getattr(conn, &repbody->oa, NULL);
+ RETURN(0);
+}
- /* move the reply to the client */
- clnt_req->rq_replen = req->rq_replen;
- clnt_req->rq_repbuf = req->rq_repbuf;
- req->rq_repbuf = NULL;
- req->rq_replen = 0;
+static int ost_statfs(struct ptlrpc_request *req)
+{
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct obd_statfs *osfs;
+ int rc, size = sizeof(*osfs);
+ ENTRY;
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
- /* free the request buffer */
- OBD_FREE(req->rq_reqbuf, req->rq_reqlen);
- req->rq_reqbuf = NULL;
+ osfs = lustre_msg_buf(req->rq_repmsg, 0);
+ memset(osfs, 0, size);
- /* wake up the client */
- wake_up_interruptible(&clnt_req->rq_wait_for_rep);
- }
+ rc = obd_statfs(conn, osfs);
+ if (rc) {
+ CERROR("ost: statfs failed: rc %d\n", rc);
+ req->rq_status = rc;
+ RETURN(rc);
+ }
+ obd_statfs_pack(osfs, osfs);
- EXIT;
- return 0;
+ RETURN(0);
}
-int ost_error(struct obd_device *obddev, struct ptlrpc_request *req)
+static int ost_open(struct ptlrpc_request *req)
{
- struct ptlrep_hdr *hdr;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
- ENTRY;
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
- OBD_ALLOC(hdr, sizeof(*hdr));
- if (!hdr) {
- EXIT;
- return -ENOMEM;
- }
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
- memset(hdr, 0, sizeof(*hdr));
-
- hdr->seqno = req->rq_reqhdr->seqno;
- hdr->status = req->rq_status;
- hdr->type = OST_TYPE_ERR;
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_open(conn, &repbody->oa, NULL);
+ RETURN(0);
+}
- req->rq_repbuf = (char *)hdr;
- req->rq_replen = sizeof(*hdr);
+static int ost_close(struct ptlrpc_request *req)
+{
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
- EXIT;
- return ost_reply(obddev, req);
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
+
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_close(conn, &repbody->oa, NULL);
+ RETURN(0);
}
-static int ost_destroy(struct ost_obd *ost, struct ptlrpc_request *req)
+static int ost_create(struct ptlrpc_request *req)
{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_destroy: cannot pack reply\n");
- return rc;
- }
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_destroy
- (&conn, &req->rq_req.ost->oa);
-
- EXIT;
- return 0;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
+
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_create(conn, &repbody->oa, NULL);
+ RETURN(0);
}
-static int ost_getattr(struct ost_obd *ost, struct ptlrpc_request *req)
+static int ost_punch(struct ptlrpc_request *req)
{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_getattr: cannot pack reply\n");
- return rc;
- }
- req->rq_rep.ost->oa.o_id = req->rq_req.ost->oa.o_id;
- req->rq_rep.ost->oa.o_valid = req->rq_req.ost->oa.o_valid;
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_getattr
- (&conn, &req->rq_rep.ost->oa);
-
- EXIT;
- return 0;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+
+ if ((NTOH__u32(body->oa.o_valid) & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))!=
+ (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
+ RETURN(-EINVAL);
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
+
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_punch(conn, &repbody->oa, NULL,
+ repbody->oa.o_size, repbody->oa.o_blocks);
+ RETURN(0);
}
-static int ost_create(struct ost_obd *ost, struct ptlrpc_request *req)
+static int ost_setattr(struct ptlrpc_request *req)
{
- struct obd_conn conn;
- int rc;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ost_body *body, *repbody;
+ int rc, size = sizeof(*body);
+ ENTRY;
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_create: cannot pack reply\n");
- return rc;
- }
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ RETURN(rc);
- memcpy(&req->rq_rep.ost->oa, &req->rq_req.ost->oa, sizeof(req->rq_req.ost->oa));
+ repbody = lustre_msg_buf(req->rq_repmsg, 0);
+ /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_setattr(conn, &repbody->oa, NULL);
+ RETURN(0);
+}
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_create
- (&conn, &req->rq_rep.ost->oa);
+static int ost_bulk_timeout(void *data)
+{
+ struct ptlrpc_bulk_desc *desc = data;
- EXIT;
- return 0;
+ ENTRY;
+ CERROR("(not yet) starting recovery of client %p\n", desc->bd_client);
+ RETURN(1);
}
-
-static int ost_setattr(struct ost_obd *ost, struct ptlrpc_request *req)
+static int ost_brw_read(struct ptlrpc_request *req)
{
- struct obd_conn conn;
- int rc;
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ptlrpc_bulk_desc *desc;
+ void *tmp1, *tmp2, *end2;
+ struct niobuf_remote *remote_nb;
+ struct niobuf_local *local_nb = NULL;
+ struct obd_ioobj *ioo;
+ struct ost_body *body;
+ struct l_wait_info lwi;
+ void *desc_priv = NULL;
+ int rc, cmd, i, j, objcount, niocount, size = sizeof(*body);
+ ENTRY;
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
+ tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
+ end2 = (char *)tmp2 + req->rq_reqmsg->buflens[2];
+ objcount = req->rq_reqmsg->buflens[1] / sizeof(*ioo);
+ niocount = req->rq_reqmsg->buflens[2] / sizeof(*remote_nb);
+ cmd = OBD_BRW_READ;
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_READ_BULK))
+ GOTO(out, rc = 0);
+
+ for (i = 0; i < objcount; i++) {
+ ost_unpack_ioo(&tmp1, &ioo);
+ if (tmp2 + ioo->ioo_bufcnt > end2) {
+ LBUG();
+ GOTO(out, rc = -EFAULT);
+ }
+ for (j = 0; j < ioo->ioo_bufcnt; j++)
+ ost_unpack_niobuf(&tmp2, &remote_nb);
+ }
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_setattr: cannot pack reply\n");
- return rc;
- }
+ OBD_ALLOC(local_nb, sizeof(*local_nb) * niocount);
+ if (local_nb == NULL)
+ GOTO(out, rc = -ENOMEM);
- memcpy(&req->rq_rep.ost->oa, &req->rq_req.ost->oa,
- sizeof(req->rq_req.ost->oa));
+ /* The unpackers move tmp1 and tmp2, so reset them before using */
+ ioo = lustre_msg_buf(req->rq_reqmsg, 1);
+ remote_nb = lustre_msg_buf(req->rq_reqmsg, 2);
+ req->rq_status = obd_preprw(cmd, conn, objcount, ioo, niocount,
+ remote_nb, local_nb, &desc_priv);
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_setattr
- (&conn, &req->rq_rep.ost->oa);
+ if (req->rq_status)
+ GOTO(out, rc = 0);
- EXIT;
- return 0;
-}
+ desc = ptlrpc_prep_bulk(req->rq_connection);
+ if (desc == NULL)
+ GOTO(out_local, rc = -ENOMEM);
+ desc->bd_portal = OST_BULK_PORTAL;
-static int ost_connect(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_setattr: cannot pack reply\n");
- return rc;
- }
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_connect(&conn);
-
- CDEBUG(0, "ost_connect: rep buffer %p, id %d\n", req->rq_repbuf,
- conn.oc_id);
- req->rq_rep.ost->connid = conn.oc_id;
- EXIT;
- return 0;
-}
+ for (i = 0; i < niocount; i++) {
+ struct ptlrpc_bulk_page *bulk = ptlrpc_prep_bulk_page(desc);
-static int ost_disconnect(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
+ if (bulk == NULL)
+ GOTO(out_bulk, rc = -ENOMEM);
+ bulk->bp_xid = remote_nb[i].xid;
+ bulk->bp_buf = local_nb[i].addr;
+ bulk->bp_buflen = remote_nb[i].len;
+ }
- ENTRY;
-
- conn.oc_dev = ost->ost_tgt;
- conn.oc_id = req->rq_req.ost->connid;
+ rc = ptlrpc_send_bulk(desc);
+ if (rc)
+ GOTO(out_bulk, rc);
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_setattr: cannot pack reply\n");
- return rc;
- }
+ lwi = LWI_TIMEOUT(obd_timeout * HZ, ost_bulk_timeout, desc);
+ rc = l_wait_event(desc->bd_waitq, desc->bd_flags &PTL_BULK_FL_SENT, &lwi);
+ if (rc) {
+ LASSERT(rc == -ETIMEDOUT);
+ GOTO(out_bulk, rc);
+ }
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_disconnect(&conn);
+ req->rq_status = obd_commitrw(cmd, conn, objcount, ioo, niocount,
+ local_nb, desc_priv);
- EXIT;
- return 0;
-}
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
-static int ost_get_info(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
- int vallen;
- void *val;
- char *ptr;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- ptr = ost_req_buf1(req->rq_req.ost);
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_get_info
- (&conn, req->rq_req.ost->buflen1, ptr, &vallen, &val);
-
- rc = ost_pack_rep(val, vallen, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_setattr: cannot pack reply\n");
- return rc;
- }
-
- EXIT;
- return 0;
+out_bulk:
+ ptlrpc_free_bulk(desc);
+out_local:
+ OBD_FREE(local_nb, sizeof(*local_nb) * niocount);
+out:
+ if (rc) {
+ /* It's a lot of work to delay allocating the reply, and a lot
+ * less work to just free it here. */
+ OBD_FREE(req->rq_repmsg, req->rq_replen);
+ req->rq_repmsg = NULL;
+ ptlrpc_error(req->rq_svc, req);
+ } else
+ ptlrpc_reply(req->rq_svc, req);
+ RETURN(rc);
}
-int ost_brw(struct ost_obd *obddev, struct ptlrpc_request *req)
+static int ost_brw_write(struct ptlrpc_request *req)
{
- struct obd_conn conn;
- int rc;
- int i, j;
- int objcount, niocount;
- char *tmp1, *tmp2, *end2;
- char *res;
- int cmd;
- struct niobuf *nb, *src, *dst;
- struct obd_ioobj *ioo;
- struct ost_req *r = req->rq_req.ost;
-
- ENTRY;
-
- tmp1 = ost_req_buf1(r);
- tmp2 = ost_req_buf2(r);
- end2 = tmp2 + req->rq_req.ost->buflen2;
- objcount = r->buflen1 / sizeof(*ioo);
- niocount = r->buflen2 / sizeof(*nb);
- cmd = r->cmd;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = req->rq_ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, niocount, NULL, 0,
- &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- printk("ost_create: cannot pack reply\n");
- return rc;
- }
- res = ost_rep_buf1(req->rq_rep.ost);
-
- for (i=0; i < objcount; i++) {
- ost_unpack_ioo((void *)&tmp1, &ioo);
- if (tmp2 + ioo->ioo_bufcnt > end2) {
- rc = -EFAULT;
- break;
- }
- for (j = 0 ; j < ioo->ioo_bufcnt ; j++) {
- ost_unpack_niobuf((void *)&tmp2, &nb);
- }
- }
-
- /* The unpackers move tmp1 and tmp2, so reset them before using */
- tmp1 = ost_req_buf1(r);
- tmp2 = ost_req_buf2(r);
- req->rq_rep.ost->result =
- req->rq_ost->ost_tgt->obd_type->typ_ops->o_preprw
- (cmd, &conn, objcount, (struct obd_ioobj *)tmp1,
- niocount, (struct niobuf *)tmp2, (struct niobuf *)res);
-
- if (cmd == OBD_BRW_WRITE) {
- for (i=0; i<niocount; i++) {
- src = &((struct niobuf *)tmp2)[i];
- dst = &((struct niobuf *)res)[i];
- memcpy((void *)(unsigned long)dst->addr,
- (void *)(unsigned long)src->addr,
- src->len);
- }
- } else {
- for (i=0; i<niocount; i++) {
- dst = &((struct niobuf *)tmp2)[i];
- src = &((struct niobuf *)res)[i];
- memcpy((void *)(unsigned long)dst->addr,
- (void *)(unsigned long)src->addr,
- PAGE_SIZE);
- }
- }
-
- req->rq_rep.ost->result =
- req->rq_ost->ost_tgt->obd_type->typ_ops->o_commitrw
- (cmd, &conn, objcount, (struct obd_ioobj *)tmp1,
- niocount, (struct niobuf *)res);
-
- EXIT;
- return 0;
-}
+ struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct ptlrpc_bulk_desc *desc;
+ struct niobuf_remote *remote_nb;
+ struct niobuf_local *local_nb, *lnb;
+ struct obd_ioobj *ioo;
+ struct ost_body *body;
+ int cmd, rc, i, j, objcount, niocount, size[2] = {sizeof(*body)};
+ void *tmp1, *tmp2, *end2;
+ void *desc_priv = NULL;
+ int reply_sent = 0;
+ struct ptlrpc_service *srv;
+ struct l_wait_info lwi;
+ __u32 xid;
+ ENTRY;
-int ost_handle(struct obd_device *obddev, struct ptlrpc_request *req)
-{
- int rc;
- struct ost_obd *ost = &obddev->u.ost;
- struct ptlreq_hdr *hdr;
-
- ENTRY;
- CDEBUG(0, "req at %p\n", req);
-
- hdr = (struct ptlreq_hdr *)req->rq_reqbuf;
- if (NTOH__u32(hdr->type) != OST_TYPE_REQ) {
- printk("lustre_ost: wrong packet type sent %d\n",
- NTOH__u32(hdr->type));
- rc = -EINVAL;
- goto out;
- }
-
- rc = ost_unpack_req(req->rq_reqbuf, req->rq_reqlen,
- &req->rq_reqhdr, &req->rq_req.ost);
- if (rc) {
- printk("lustre_ost: Invalid request\n");
- EXIT;
- goto out;
- }
-
- switch (req->rq_reqhdr->opc) {
-
- case OST_CONNECT:
- CDEBUG(D_INODE, "connect\n");
- rc = ost_connect(ost, req);
- break;
- case OST_DISCONNECT:
- CDEBUG(D_INODE, "disconnect\n");
- rc = ost_disconnect(ost, req);
- break;
- case OST_GET_INFO:
- CDEBUG(D_INODE, "get_info\n");
- rc = ost_get_info(ost, req);
- break;
- case OST_CREATE:
- CDEBUG(D_INODE, "create\n");
- rc = ost_create(ost, req);
- break;
- case OST_DESTROY:
- CDEBUG(D_INODE, "destroy\n");
- rc = ost_destroy(ost, req);
- break;
- case OST_GETATTR:
- CDEBUG(D_INODE, "getattr\n");
- rc = ost_getattr(ost, req);
- break;
- case OST_SETATTR:
- CDEBUG(D_INODE, "setattr\n");
- rc = ost_setattr(ost, req);
- break;
- case OST_BRW:
- CDEBUG(D_INODE, "brw\n");
- rc = ost_brw(ost, req);
- break;
- default:
- req->rq_status = -ENOTSUPP;
- return ost_error(obddev, req);
- }
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
+ tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
+ end2 = (char *)tmp2 + req->rq_reqmsg->buflens[2];
+ objcount = req->rq_reqmsg->buflens[1] / sizeof(*ioo);
+ niocount = req->rq_reqmsg->buflens[2] / sizeof(*remote_nb);
+ cmd = OBD_BRW_WRITE;
+
+ for (i = 0; i < objcount; i++) {
+ ost_unpack_ioo((void *)&tmp1, &ioo);
+ if (tmp2 + ioo->ioo_bufcnt > end2) {
+ rc = -EFAULT;
+ break;
+ }
+ for (j = 0; j < ioo->ioo_bufcnt; j++)
+ ost_unpack_niobuf((void *)&tmp2, &remote_nb);
+ }
+ size[1] = niocount * sizeof(*remote_nb);
+ rc = lustre_pack_msg(2, size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc)
+ GOTO(out, rc);
+ remote_nb = lustre_msg_buf(req->rq_repmsg, 1);
+
+ OBD_ALLOC(local_nb, niocount * sizeof(*local_nb));
+ if (local_nb == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ /* The unpackers move tmp1 and tmp2, so reset them before using */
+ tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
+ tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
+ req->rq_status = obd_preprw(cmd, conn, objcount, tmp1, niocount, tmp2,
+ local_nb, &desc_priv);
+ if (req->rq_status)
+ GOTO(out_free, rc = 0); /* XXX is this correct? */
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
+ GOTO(fail_preprw, rc = 0);
+
+ desc = ptlrpc_prep_bulk(req->rq_connection);
+ if (desc == NULL)
+ GOTO(fail_preprw, rc = -ENOMEM);
+ desc->bd_cb = NULL;
+ desc->bd_portal = OSC_BULK_PORTAL;
+ desc->bd_desc_private = desc_priv;
+ memcpy(&(desc->bd_conn), &conn, sizeof(conn));
+
+ srv = req->rq_obd->u.ost.ost_service;
+ spin_lock(&srv->srv_lock);
+ xid = srv->srv_xid++; /* single xid for all pages */
+ spin_unlock(&srv->srv_lock);
+
+ for (i = 0, lnb = local_nb; i < niocount; i++, lnb++) {
+ struct ptlrpc_bulk_page *bulk;
+
+ bulk = ptlrpc_prep_bulk_page(desc);
+ if (bulk == NULL)
+ GOTO(fail_bulk, rc = -ENOMEM);
+
+ bulk->bp_xid = xid; /* single xid for all pages */
+
+ bulk->bp_buf = lnb->addr;
+ bulk->bp_page = lnb->page;
+ bulk->bp_flags = lnb->flags;
+ bulk->bp_dentry = lnb->dentry;
+ bulk->bp_buflen = lnb->len;
+ bulk->bp_cb = NULL;
+
+ /* this advances remote_nb */
+ ost_pack_niobuf((void **)&remote_nb, lnb->offset, lnb->len, 0,
+ bulk->bp_xid);
+ }
+
+ rc = ptlrpc_register_bulk(desc);
+ if (rc)
+ GOTO(fail_bulk, rc);
+
+ reply_sent = 1;
+ ptlrpc_reply(req->rq_svc, req);
+
+ lwi = LWI_TIMEOUT(obd_timeout * HZ, ost_bulk_timeout, desc);
+ rc = l_wait_event(desc->bd_waitq, desc->bd_flags & PTL_BULK_FL_RCVD,
+ &lwi);
+ if (rc) {
+ if (rc != -ETIMEDOUT)
+ LBUG();
+ GOTO(fail_bulk, rc);
+ }
+
+ rc = obd_commitrw(cmd, conn, objcount, tmp1, niocount, local_nb,
+ desc->bd_desc_private);
+ ptlrpc_free_bulk(desc);
+ EXIT;
+out_free:
+ OBD_FREE(local_nb, niocount * sizeof(*local_nb));
out:
- req->rq_status = rc;
- if (rc) {
- printk("ost: processing error %d\n", rc);
- ost_error(obddev, req);
- } else {
- CDEBUG(D_INODE, "sending reply\n");
- ost_reply(obddev, req);
- }
-
- return 0;
-}
+ if (!reply_sent) {
+ if (rc) {
+ OBD_FREE(req->rq_repmsg, req->rq_replen);
+ req->rq_repmsg = NULL;
+ ptlrpc_error(req->rq_svc, req);
+ } else
+ ptlrpc_reply(req->rq_svc, req);
+ }
+ return rc;
-int ost_main(void *arg)
-{
- struct obd_device *obddev = (struct obd_device *) arg;
- struct ost_obd *ost = &obddev->u.ost;
- ENTRY;
-
- lock_kernel();
- daemonize();
- spin_lock_irq(¤t->sigmask_lock);
- sigfillset(¤t->blocked);
- recalc_sigpending(current);
- spin_unlock_irq(¤t->sigmask_lock);
-
- sprintf(current->comm, "lustre_ost");
-
- /* Record that the thread is running */
- ost->ost_thread = current;
- wake_up(&ost->ost_done_waitq);
-
- /* XXX maintain a list of all managed devices: insert here */
-
- /* And now, wait forever for commit wakeup events. */
- while (1) {
- int rc;
-
- if (ost->ost_flags & OST_EXIT)
- break;
-
- wake_up(&ost->ost_done_waitq);
- interruptible_sleep_on(&ost->ost_waitq);
-
- CDEBUG(D_INODE, "lustre_ost wakes\n");
- CDEBUG(D_INODE, "pick up req here and continue\n");
-
-
- if (ost->ost_service != NULL) {
- ptl_event_t ev;
-
- while (1) {
- struct ptlrpc_request request;
- struct ptlrpc_service *service;
-
- rc = PtlEQGet(ost->ost_service->srv_eq_h, &ev);
- if (rc != PTL_OK && rc != PTL_EQ_DROPPED)
- break;
-
- service = (struct ptlrpc_service *)ev.mem_desc.user_ptr;
-
- /* FIXME: If we move to an event-driven model,
- * we should put the request on the stack of
- * mds_handle instead. */
- memset(&request, 0, sizeof(request));
- request.rq_reqbuf = ev.mem_desc.start +
- ev.offset;
- request.rq_reqlen = ev.mem_desc.length;
- request.rq_ost = ost;
- request.rq_xid = ev.match_bits;
-
- request.rq_peer.peer_nid = ev.initiator.nid;
- /* FIXME: this NI should be the incoming NI.
- * We don't know how to find that from here. */
- request.rq_peer.peer_ni =
- ost->ost_service->srv_self.peer_ni;
- rc = ost_handle(obddev, &request);
-
- /* Inform the rpc layer the event has been handled */
- ptl_received_rpc(service);
- }
- } else {
- struct ptlrpc_request *request;
-
- if (list_empty(&ost->ost_reqs)) {
- CDEBUG(D_INODE, "woke because of timer\n");
- } else {
- request = list_entry(ost->ost_reqs.next,
- struct ptlrpc_request,
- rq_list);
- list_del(&request->rq_list);
- rc = ost_handle(obddev, request);
- }
- }
- }
-
- /* XXX maintain a list of all managed devices: cleanup here */
-
- ost->ost_thread = NULL;
- wake_up(&ost->ost_done_waitq);
- printk("lustre_ost: exiting\n");
- return 0;
+fail_bulk:
+ ptlrpc_free_bulk(desc);
+fail_preprw:
+ /* FIXME: how do we undo the preprw? */
+ goto out_free;
}
-static void ost_stop_srv_thread(struct ost_obd *ost)
+static int ost_handle(struct ptlrpc_request *req)
{
- ost->ost_flags |= OST_EXIT;
+ int rc;
+ ENTRY;
- while (ost->ost_thread) {
- wake_up(&ost->ost_waitq);
- sleep_on(&ost->ost_done_waitq);
- }
-}
+ rc = lustre_unpack_msg(req->rq_reqmsg, req->rq_reqlen);
+ if (rc || OBD_FAIL_CHECK(OBD_FAIL_OST_HANDLE_UNPACK)) {
+ CERROR("lustre_ost: Invalid request\n");
+ GOTO(out, rc);
+ }
-static void ost_start_srv_thread(struct obd_device *obd)
-{
- struct ost_obd *ost = &obd->u.ost;
- ENTRY;
-
- init_waitqueue_head(&ost->ost_waitq);
- init_waitqueue_head(&ost->ost_done_waitq);
- kernel_thread(ost_main, (void *)obd,
- CLONE_VM | CLONE_FS | CLONE_FILES);
- while (!ost->ost_thread)
- sleep_on(&ost->ost_done_waitq);
- EXIT;
+ if (req->rq_reqmsg->opc != OST_CONNECT &&
+ req->rq_export == NULL) {
+ CERROR("lustre_ost: operation %d on unconnected OST\n",
+ req->rq_reqmsg->opc);
+ GOTO(out, rc = -ENOTCONN);
+ }
+
+ if (strcmp(req->rq_obd->obd_type->typ_name, "ost") != 0)
+ GOTO(out, rc = -EINVAL);
+
+ switch (req->rq_reqmsg->opc) {
+ case OST_CONNECT:
+ CDEBUG(D_INODE, "connect\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_CONNECT_NET, 0);
+ rc = target_handle_connect(req);
+ break;
+ case OST_DISCONNECT:
+ CDEBUG(D_INODE, "disconnect\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_DISCONNECT_NET, 0);
+ rc = target_handle_disconnect(req);
+ break;
+ case OST_CREATE:
+ CDEBUG(D_INODE, "create\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_CREATE_NET, 0);
+ rc = ost_create(req);
+ break;
+ case OST_DESTROY:
+ CDEBUG(D_INODE, "destroy\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_DESTROY_NET, 0);
+ rc = ost_destroy(req);
+ break;
+ case OST_GETATTR:
+ CDEBUG(D_INODE, "getattr\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_GETATTR_NET, 0);
+ rc = ost_getattr(req);
+ break;
+ case OST_SETATTR:
+ CDEBUG(D_INODE, "setattr\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_SETATTR_NET, 0);
+ rc = ost_setattr(req);
+ break;
+ case OST_OPEN:
+ CDEBUG(D_INODE, "open\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_OPEN_NET, 0);
+ rc = ost_open(req);
+ break;
+ case OST_CLOSE:
+ CDEBUG(D_INODE, "close\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_CLOSE_NET, 0);
+ rc = ost_close(req);
+ break;
+ case OST_WRITE:
+ CDEBUG(D_INODE, "write\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_BRW_NET, 0);
+ rc = ost_brw_write(req);
+ /* ost_brw sends its own replies */
+ RETURN(rc);
+ case OST_READ:
+ CDEBUG(D_INODE, "read\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_BRW_NET, 0);
+ rc = ost_brw_read(req);
+ /* ost_brw sends its own replies */
+ RETURN(rc);
+ case OST_PUNCH:
+ CDEBUG(D_INODE, "punch\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_PUNCH_NET, 0);
+ rc = ost_punch(req);
+ break;
+ case OST_STATFS:
+ CDEBUG(D_INODE, "statfs\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_STATFS_NET, 0);
+ rc = ost_statfs(req);
+ break;
+ case LDLM_ENQUEUE:
+ CDEBUG(D_INODE, "enqueue\n");
+ OBD_FAIL_RETURN(OBD_FAIL_LDLM_ENQUEUE, 0);
+ rc = ldlm_handle_enqueue(req);
+ if (rc)
+ break;
+ RETURN(0);
+ case LDLM_CONVERT:
+ CDEBUG(D_INODE, "convert\n");
+ OBD_FAIL_RETURN(OBD_FAIL_LDLM_CONVERT, 0);
+ rc = ldlm_handle_convert(req);
+ if (rc)
+ break;
+ RETURN(0);
+ case LDLM_CANCEL:
+ CDEBUG(D_INODE, "cancel\n");
+ OBD_FAIL_RETURN(OBD_FAIL_LDLM_CANCEL, 0);
+ rc = ldlm_handle_cancel(req);
+ if (rc)
+ break;
+ RETURN(0);
+ case LDLM_BL_CALLBACK:
+ case LDLM_CP_CALLBACK:
+ CDEBUG(D_INODE, "callback\n");
+ CERROR("callbacks should not happen on OST\n");
+ LBUG();
+ OBD_FAIL_RETURN(OBD_FAIL_LDLM_BL_CALLBACK, 0);
+ break;
+ default:
+ req->rq_status = -ENOTSUPP;
+ rc = ptlrpc_error(req->rq_svc, req);
+ RETURN(rc);
+ }
+
+ EXIT;
+out:
+ //req->rq_status = rc;
+ if (rc) {
+ CERROR("ost: processing error (opcode=%d): %d\n",
+ req->rq_reqmsg->opc, rc);
+ ptlrpc_error(req->rq_svc, req);
+ } else {
+ CDEBUG(D_INODE, "sending reply\n");
+ if (req->rq_repmsg == NULL)
+ CERROR("handler for opcode %d returned rc=0 without "
+ "creating rq_repmsg; needs to return rc != "
+ "0!\n", req->rq_reqmsg->opc);
+ ptlrpc_reply(req->rq_svc, req);
+ }
+
+ return 0;
}
+#define OST_NUM_THREADS 6
+
/* mount the file system (secretly) */
-static int ost_setup(struct obd_device *obddev, obd_count len,
- void *buf)
-
+static int ost_setup(struct obd_device *obddev, obd_count len, void *buf)
{
- struct obd_ioctl_data* data = buf;
- struct ost_obd *ost = &obddev->u.ost;
- struct obd_device *tgt;
- struct lustre_peer peer;
- int err;
+ struct obd_ioctl_data* data = buf;
+ struct ost_obd *ost = &obddev->u.ost;
+ struct obd_device *tgt;
+ int err;
+ int i;
ENTRY;
- if (data->ioc_dev < 0 || data->ioc_dev > MAX_OBD_DEVICES) {
- EXIT;
- return -ENODEV;
- }
+ if (data->ioc_inllen1 < 1) {
+ CERROR("requires a TARGET OBD UUID\n");
+ RETURN(-EINVAL);
+ }
+ if (data->ioc_inllen1 > 37) {
+ CERROR("OBD UUID must be less than 38 characters\n");
+ RETURN(-EINVAL);
+ }
- tgt = &obd_dev[data->ioc_dev];
- ost->ost_tgt = tgt;
- if ( ! (tgt->obd_flags & OBD_ATTACHED) ||
- ! (tgt->obd_flags & OBD_SET_UP) ){
- printk("device not attached or not set up (%d)\n",
+ MOD_INC_USE_COUNT;
+ tgt = class_uuid2obd(data->ioc_inlbuf1);
+ if (!tgt || !(tgt->obd_flags & OBD_ATTACHED) ||
+ !(tgt->obd_flags & OBD_SET_UP)) {
+ CERROR("device not attached or not set up (%d)\n",
data->ioc_dev);
- EXIT;
- return -EINVAL;
- }
-
- ost->ost_conn.oc_dev = tgt;
- err = tgt->obd_type->typ_ops->o_connect(&ost->ost_conn);
- if (err) {
- printk("lustre ost: fail to connect to device %d\n",
- data->ioc_dev);
- return -EINVAL;
- }
-
- INIT_LIST_HEAD(&ost->ost_reqs);
- ost->ost_thread = NULL;
- ost->ost_flags = 0;
-
- spin_lock_init(&obddev->u.ost.ost_lock);
-
- err = kportal_uuid_to_peer("self", &peer);
- if (err == 0) {
- OBD_ALLOC(ost->ost_service, sizeof(*ost->ost_service));
- if (ost->ost_service == NULL)
- return -ENOMEM;
- ost->ost_service->srv_buf_size = 64 * 1024;
- ost->ost_service->srv_portal = OST_REQUEST_PORTAL;
- memcpy(&ost->ost_service->srv_self, &peer, sizeof(peer));
- ost->ost_service->srv_wait_queue = &ost->ost_waitq;
-
- rpc_register_service(ost->ost_service, "self");
- }
-
- ost_start_srv_thread(obddev);
+ GOTO(error_dec, err = -EINVAL);
+ }
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
+ err = obd_connect(&ost->ost_conn, tgt, NULL, NULL, NULL);
+ if (err) {
+ CERROR("fail to connect to device %d\n", data->ioc_dev);
+ GOTO(error_dec, err = -EINVAL);
+ }
+
+ ost->ost_service = ptlrpc_init_svc(OST_NEVENTS, OST_NBUFS,
+ OST_BUFSIZE, OST_MAXREQSIZE,
+ OST_REQUEST_PORTAL, OSC_REPLY_PORTAL,
+ "self", ost_handle, "ost");
+ if (!ost->ost_service) {
+ CERROR("failed to start service\n");
+ GOTO(error_disc, err = -EINVAL);
+ }
+
+ for (i = 0; i < OST_NUM_THREADS; i++) {
+ char name[32];
+ sprintf(name, "lustre_ost_%02d", i);
+ err = ptlrpc_start_thread(obddev, ost->ost_service, name);
+ if (err) {
+ CERROR("error starting thread #%d: rc %d\n", i, err);
+ GOTO(error_disc, err = -EINVAL);
+ }
+ }
+
+ RETURN(0);
+
+error_disc:
+ obd_disconnect(&ost->ost_conn);
+error_dec:
+ MOD_DEC_USE_COUNT;
+ RETURN(err);
+}
static int ost_cleanup(struct obd_device * obddev)
{
- struct ost_obd *ost = &obddev->u.ost;
- struct obd_device *tgt;
- int err;
+ struct ost_obd *ost = &obddev->u.ost;
+ int err;
ENTRY;
- if ( !(obddev->obd_flags & OBD_SET_UP) ) {
- EXIT;
- return 0;
+ if ( !list_empty(&obddev->obd_exports) ) {
+ CERROR("still has clients!\n");
+ RETURN(-EBUSY);
}
- if ( !list_empty(&obddev->obd_gen_clients) ) {
- printk(KERN_WARNING __FUNCTION__ ": still has clients!\n");
- EXIT;
- return -EBUSY;
- }
+ ptlrpc_stop_all_threads(ost->ost_service);
+ ptlrpc_unregister_service(ost->ost_service);
- ost_stop_srv_thread(ost);
- rpc_unregister_service(ost->ost_service);
- OBD_FREE(ost->ost_service, sizeof(*ost->ost_service));
-
- if (!list_empty(&ost->ost_reqs)) {
- // XXX reply with errors and clean up
- CDEBUG(D_INODE, "Request list not empty!\n");
- }
-
- tgt = ost->ost_tgt;
- err = tgt->obd_type->typ_ops->o_disconnect(&ost->ost_conn);
- if (err) {
- printk("lustre ost: fail to disconnect device\n");
- return -EINVAL;
- }
-
+ err = obd_disconnect(&ost->ost_conn);
+ if (err) {
+ CERROR("lustre ost: fail to disconnect device\n");
+ RETURN(-EINVAL);
+ }
MOD_DEC_USE_COUNT;
- EXIT;
+ RETURN(0);
+}
+int ost_attach(struct obd_device *dev,
+ obd_count len, void *data)
+{
+ /* lprocfs_reg_dev(dev, (lprocfs_group_t*)lprocfs_ptlrpc_nm,
+ sizeof(struct lprofiler_ptlrpc));
+ */
+ lprocfs_reg_obd(dev, (lprocfs_vars_t*)status_var_nm_1, (void*)dev);
+ return 0;
+}
+
+int ost_detach(struct obd_device *dev)
+{
+ /* lprocfs_dereg_dev(dev); */
+ lprocfs_dereg_obd(dev);
return 0;
+
}
+
+
/* use obd ops to offer management infrastructure */
static struct obd_ops ost_obd_ops = {
+ o_attach: ost_attach,
+ o_detach: ost_detach,
o_setup: ost_setup,
o_cleanup: ost_cleanup,
};
static int __init ost_init(void)
{
- obd_register_type(&ost_obd_ops, LUSTRE_OST_NAME);
- return 0;
+ int rc;
+
+ rc = class_register_type(&ost_obd_ops,
+ (lprocfs_vars_t*)status_class_var,
+ LUSTRE_OST_NAME);
+ if (rc) RETURN(rc);
+
+ return 0;
+
}
static void __exit ost_exit(void)
{
- obd_unregister_type(LUSTRE_OST_NAME);
+
+ class_unregister_type(LUSTRE_OST_NAME);
}
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
+MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
MODULE_DESCRIPTION("Lustre Object Storage Target (OST) v0.01");
MODULE_LICENSE("GPL");
-// for testing (maybe this stays)
-EXPORT_SYMBOL(ost_queue_req);
-
module_init(ost_init);
module_exit(ost_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff