*
* Copyright (C) 2001, 2002 Cluster File Systems, Inc.
*
- * This file is part of Portals, http://www.sf.net/projects/lustre/
+ * This file is part of Lustre, http://www.sf.net/projects/lustre/
*
- * Portals is free software; you can redistribute it and/or
+ * 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.
*
- * Portals is distributed in the hope that it will be useful,
+ * 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 Portals; if not, write to the Free Software
+ * along with Lustre; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#define EXPORT_SYMTAB
-#include <linux/config.h>
#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
#include <linux/miscdevice.h>
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
+#define DEBUG_SUBSYSTEM S_MDC
+
#include <linux/lustre_mds.h>
+#include <linux/lustre_lite.h>
#define REQUEST_MINOR 244
extern int mds_queue_req(struct ptlrpc_request *);
-/* FIXME: this belongs in some sort of service struct */
-static int mdc_xid = 0;
-
-struct ptlrpc_request *mds_prep_req(int opcode, int namelen, char *name,
- int tgtlen, char *tgt)
+int mdc_connect(struct ptlrpc_client *cl, struct ptlrpc_connection *conn,
+ struct ll_fid *rootfid, __u64 *last_committed, __u64 *last_rcvd,
+ __u32 *last_xid, struct ptlrpc_request **request)
{
- struct ptlrpc_request *request;
- int rc;
- ENTRY;
-
- OBD_ALLOC(request, sizeof(*request));
- if (!request) {
- printk("mds_prep_req: request allocation out of memory\n");
- return NULL;
- }
-
- memset(request, 0, sizeof(*request));
- request->rq_xid = mdc_xid++;
-
- rc = mds_pack_req(name, namelen, tgt, tgtlen,
- &request->rq_reqhdr, &(request->rq_req.mds),
- &request->rq_reqlen, &request->rq_reqbuf);
- if (rc) {
- printk("llight request: cannot pack request %d\n", rc);
- return NULL;
- }
- CDEBUG(D_MDC, "--> mds_prep_req: len %d, req %p, tgtlen %d\n",
- request->rq_reqlen, request->rq_req.mds,
- request->rq_req.mds->tgtlen);
- request->rq_reqhdr->opc = opcode;
-
- EXIT;
- return request;
-}
+ struct ptlrpc_request *req;
+ struct mds_body *body;
+ int rc, size = sizeof(*body);
+ ENTRY;
+
+ req = ptlrpc_prep_req(cl, conn, MDS_CONNECT, 1, &size, NULL);
+ if (!req)
+ GOTO(out, rc = -ENOMEM);
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ req->rq_level = LUSTRE_CONN_CON;
+ req->rq_replen = lustre_msg_size(1, &size);
+
+ mds_pack_req_body(req);
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
+
+ if (!rc) {
+ mds_unpack_rep_body(req);
+ body = lustre_msg_buf(req->rq_repmsg, 0);
+ memcpy(rootfid, &body->fid1, sizeof(*rootfid));
+ *last_committed = req->rq_repmsg->last_committed;
+ *last_rcvd = req->rq_repmsg->last_rcvd;
+ *last_xid = body->last_xid;
+
+ CDEBUG(D_NET, "root ino=%ld, last_committed=%Lu, last_rcvd=%Lu,"
+ " last_xid=%d\n",
+ (unsigned long)rootfid->id,
+ (unsigned long long)*last_committed,
+ (unsigned long long)*last_rcvd,
+ body->last_xid);
+ }
-static int mds_queue_wait(struct ptlrpc_request *req, struct lustre_peer *peer)
-{
- int rc;
-
- /* XXX fix the race here (wait_for_event?)*/
- if (peer == NULL) {
- /* Local delivery */
- ENTRY;
- rc = mds_queue_req(req);
- } else {
- /* Remote delivery via portals. */
- req->rq_req_portal = MDS_REQUEST_PORTAL;
- req->rq_reply_portal = MDS_REPLY_PORTAL;
- rc = ptl_send_rpc(req, peer);
- }
- if (rc) {
- printk(__FUNCTION__ ": error %d, opcode %d\n", rc,
- req->rq_reqhdr->opc);
- return -rc;
- }
-
- init_waitqueue_head(&req->rq_wait_for_rep);
- CDEBUG(D_MDC, "-- sleeping\n");
- interruptible_sleep_on(&req->rq_wait_for_rep);
- CDEBUG(D_MDC, "-- done\n");
-
- rc = mds_unpack_rep(req->rq_repbuf, req->rq_replen, &req->rq_rephdr,
- &req->rq_rep.mds);
- if (rc) {
- printk(__FUNCTION__ ": mds_unpack_rep failed: %d\n", rc);
- return rc;
- }
-
- if ( req->rq_rephdr->status == 0 )
- CDEBUG(D_MDC, "--> buf %p len %d status %d\n",
- req->rq_repbuf, req->rq_replen,
- req->rq_rephdr->status);
-
- EXIT;
- return 0;
+ EXIT;
+ out:
+ ptlrpc_free_req(req);
+ return rc;
}
-void mdc_free_req(struct ptlrpc_request *request)
-{
- OBD_FREE(request, sizeof(*request));
-}
-int mdc_getattr(struct lustre_peer *peer, ino_t ino, int type, int valid,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_getattr(struct ptlrpc_client *cl, struct ptlrpc_connection *conn,
+ ino_t ino, int type, unsigned long valid, size_t ea_size,
+ struct ptlrpc_request **request)
{
- struct ptlrpc_request *request;
- int rc;
-
- request = mds_prep_req(MDS_GETATTR, 0, NULL, 0, NULL);
- if (!request) {
- printk("llight request: cannot pack\n");
- return -ENOMEM;
- }
-
- ll_ino2fid(&request->rq_req.mds->fid1, ino, 0, type);
-
- request->rq_req.mds->valid = valid;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = mds_queue_wait(request, peer);
- if (rc) {
- printk("llight request: error in handling %d\n", rc);
- goto out;
- }
-
- CDEBUG(D_MDC, "mode: %o\n", request->rq_rep.mds->mode);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- out:
- mdc_free_req(request);
- return rc;
+ struct ptlrpc_request *req;
+ struct mds_body *body;
+ int rc, size[2] = {sizeof(*body), 0}, bufcount = 1;
+ ENTRY;
+
+ req = ptlrpc_prep_req(cl, conn, MDS_GETATTR, 1, size, NULL);
+ if (!req)
+ GOTO(out, rc = -ENOMEM);
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ ll_ino2fid(&body->fid1, ino, 0, type);
+ body->valid = valid;
+
+ if (valid & OBD_MD_LINKNAME) {
+ bufcount = 2;
+ size[1] = ea_size;
+ }
+ req->rq_replen = lustre_msg_size(bufcount, size);
+ req->rq_level = LUSTRE_CONN_FULL;
+
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
+
+ if (!rc) {
+ mds_unpack_rep_body(req);
+ body = lustre_msg_buf(req->rq_repmsg, 0);
+ CDEBUG(D_NET, "mode: %o\n", body->mode);
+ }
+
+ EXIT;
+ out:
+ *request = req;
+ return rc;
}
-int mdc_readpage(struct lustre_peer *peer, ino_t ino, int type, __u64 offset,
- char *addr, struct mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_open(struct ptlrpc_client *cl, struct ptlrpc_connection *conn,
+ ino_t ino, int type, int flags, __u64 cookie, __u64 *fh,
+ struct ptlrpc_request **request)
{
- struct ptlrpc_request *request;
- struct niobuf niobuf;
- int rc;
-
- niobuf.addr = (__u64) (long) addr;
-
- CDEBUG(D_MDC, "inode: %ld\n", ino);
-
- request = mds_prep_req(MDS_READPAGE, 0, NULL,
- sizeof(struct niobuf), (char *)&niobuf);
- if (!request) {
- printk("mdc request: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_req.mds->fid1.id = ino;
- request->rq_req.mds->fid1.f_type = type;
- request->rq_req.mds->size = offset;
- request->rq_req.mds->tgtlen = sizeof(niobuf);
-
- request->rq_bulk_portal = MDS_BULK_PORTAL;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = mds_queue_wait(request, peer);
- if (rc) {
- printk("mdc request: error in handling %d\n", rc);
- goto out;
- }
-
- CDEBUG(D_MDC, "mode: %o\n", request->rq_rep.mds->mode);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- out:
- mdc_free_req(request);
- return rc;
+ struct mds_body *body;
+ int rc, size = sizeof(*body);
+ struct ptlrpc_request *req;
+
+ req = ptlrpc_prep_req(cl, conn, MDS_OPEN, 1, &size, NULL);
+ if (!req)
+ GOTO(out, rc = -ENOMEM);
+
+ req->rq_flags |= PTL_RPC_FL_REPLAY;
+ req->rq_level = LUSTRE_CONN_FULL;
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ ll_ino2fid(&body->fid1, ino, 0, type);
+ body->flags = HTON__u32(flags);
+ body->objid = cookie;
+
+ req->rq_replen = lustre_msg_size(1, &size);
+
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
+
+ if (!rc) {
+ mds_unpack_rep_body(req);
+ body = lustre_msg_buf(req->rq_repmsg, 0);
+ *fh = body->objid;
+ }
+
+ EXIT;
+ out:
+ *request = req;
+ return rc;
}
-int mdc_reint(struct lustre_peer *peer, struct ptlrpc_request *request)
+int mdc_close(struct ptlrpc_client *cl, struct ptlrpc_connection *conn,
+ ino_t ino, int type, __u64 fh, struct ptlrpc_request **request)
{
- int rc;
+ struct mds_body *body;
+ int rc, size = sizeof(*body);
+ struct ptlrpc_request *req;
+
+ req = ptlrpc_prep_req(cl, conn, MDS_CLOSE, 1, &size, NULL);
+ if (!req)
+ GOTO(out, rc = -ENOMEM);
- rc = mds_queue_wait(request, peer);
- if (rc) {
- printk("mdc request: error in handling %d\n", rc);
- }
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ ll_ino2fid(&body->fid1, ino, 0, type);
+ body->objid = fh;
- return rc;
+ req->rq_level = LUSTRE_CONN_FULL;
+ req->rq_replen = lustre_msg_size(0, NULL);
+
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
+
+ EXIT;
+ out:
+ *request = req;
+ return rc;
}
+int mdc_readpage(struct ptlrpc_client *cl, struct ptlrpc_connection *conn,
+ ino_t ino, int type, __u64 offset, char *addr,
+ struct ptlrpc_request **request)
+{
+ struct ptlrpc_request *req = NULL;
+ struct ptlrpc_bulk_desc *desc = NULL;
+ struct ptlrpc_bulk_page *bulk = NULL;
+ struct mds_body *body;
+ int rc, size = sizeof(*body);
+ ENTRY;
+
+ CDEBUG(D_INODE, "inode: %ld\n", (long)ino);
+
+ desc = ptlrpc_prep_bulk(conn);
+ if (desc == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ req = ptlrpc_prep_req(cl, conn, MDS_READPAGE, 1, &size, NULL);
+ if (!req)
+ GOTO(out2, rc = -ENOMEM);
+
+ bulk = ptlrpc_prep_bulk_page(desc);
+ bulk->b_buflen = PAGE_SIZE;
+ bulk->b_buf = addr;
+ bulk->b_xid = req->rq_reqmsg->xid;
+ desc->b_portal = MDS_BULK_PORTAL;
+
+ rc = ptlrpc_register_bulk(desc);
+ if (rc) {
+ CERROR("couldn't setup bulk sink: error %d.\n", rc);
+ GOTO(out2, rc);
+ }
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0);
+ body->fid1.id = ino;
+ body->fid1.f_type = type;
+ body->size = offset;
+
+ req->rq_replen = lustre_msg_size(1, &size);
+ req->rq_level = LUSTRE_CONN_FULL;
+ rc = ptlrpc_queue_wait(req);
+ if (rc) {
+ CERROR("error in handling %d\n", rc);
+ ptlrpc_abort_bulk(desc);
+ } else
+ mds_unpack_rep_body(req);
+
+ EXIT;
+ out2:
+ ptlrpc_free_bulk(desc);
+ out:
+ *request = req;
+ return rc;
+}
-static int request_ioctl(struct inode *inode, struct file *file,
+static int request_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
- int err;
- struct lustre_peer peer, *peer_ptr = NULL;
+ int err = 0;
+ struct ptlrpc_client cl;
+ struct ptlrpc_connection *conn;
+ struct ptlrpc_request *request;
- ENTRY;
+ ENTRY;
- if (MINOR(inode->i_rdev) != REQUEST_MINOR) {
- EXIT;
- return -EINVAL;
- }
+ if (MINOR(inode->i_rdev) != REQUEST_MINOR)
+ RETURN(-EINVAL);
- if ( _IOC_TYPE(cmd) != IOC_REQUEST_TYPE ||
- _IOC_NR(cmd) < IOC_REQUEST_MIN_NR ||
- _IOC_NR(cmd) > IOC_REQUEST_MAX_NR ) {
+ if (_IOC_TYPE(cmd) != IOC_REQUEST_TYPE ||
+ _IOC_NR(cmd) < IOC_REQUEST_MIN_NR ||
+ _IOC_NR(cmd) > IOC_REQUEST_MAX_NR ) {
CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
- _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
- EXIT;
- return -EINVAL;
+ _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
+ RETURN(-EINVAL);
+ }
+
+ ptlrpc_init_client(NULL, NULL,
+ MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL, &cl);
+ conn = ptlrpc_uuid_to_connection("mds");
+ if (!conn) {
+ CERROR("cannot create client\n");
+ RETURN(-EINVAL);
+ }
+
+ switch (cmd) {
+ case IOC_REQUEST_GETATTR: {
+ CERROR("-- getting attr for ino %lu\n", arg);
+ err = mdc_getattr(&cl, conn, arg, S_IFDIR, ~0, 0, &request);
+ CERROR("-- done err %d\n", err);
+
+ GOTO(out, err);
}
- err = kportal_uuid_to_peer("mds", &peer);
- if (err == 0)
- peer_ptr = &peer;
-
- switch (cmd) {
- case IOC_REQUEST_GETATTR: {
- struct ptlrep_hdr *hdr = NULL;
- printk("-- getting attr for ino 2\n");
- err = mdc_getattr(peer_ptr, 2, S_IFDIR, ~0, NULL, &hdr);
- if (hdr) {
- /* FIXME: there must be a better way to get the size */
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
+ case IOC_REQUEST_READPAGE: {
+ char *buf;
+ OBD_ALLOC(buf, PAGE_SIZE);
+ if (!buf) {
+ err = -ENOMEM;
+ GOTO(out, err);
}
- printk("-- done err %d\n", err);
- break;
- }
-
- case IOC_REQUEST_READPAGE: {
- struct ptlrep_hdr *hdr = NULL;
- char *buf;
- OBD_ALLOC(buf, PAGE_SIZE);
- if (!buf) {
- err = -ENOMEM;
- break;
- }
- printk("-- readpage 0 for ino 2\n");
- err = mdc_readpage(peer_ptr, 2, S_IFDIR, 0, buf, NULL, &hdr);
- printk("-- done err %d\n", err);
- if (!err) {
- printk("-- status: %d\n", hdr->status);
- err = hdr->status;
- if (hdr)
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- }
- OBD_FREE(buf, PAGE_SIZE);
- break;
- }
-
- case IOC_REQUEST_SETATTR: {
- struct inode inode;
- struct ptlrep_hdr *hdr;
- struct iattr iattr;
-
- inode.i_ino = 2;
- iattr.ia_mode = 040777;
- iattr.ia_atime = 0;
- iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
-
- err = mdc_setattr(peer_ptr, &inode, &iattr, NULL, &hdr);
- printk("-- done err %d\n", err);
- if (!err) {
- printk("-- status: %d\n", hdr->status);
- err = hdr->status;
- } else {
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- }
- break;
- }
-
- case IOC_REQUEST_CREATE: {
- struct inode inode;
- struct ptlrep_hdr *hdr;
- struct iattr iattr;
-
- inode.i_ino = 2;
- iattr.ia_mode = 040777;
- iattr.ia_atime = 0;
- iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
-
- err = mdc_create(peer_ptr, &inode,
- "foofile", strlen("foofile"),
- NULL, 0, 0100707, 47114711,
- 11, 47, 0, NULL, &hdr);
- printk("-- done err %d\n", err);
- if (!err) {
- printk("-- status: %d\n", hdr->status);
- err = hdr->status;
- }
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- break;
- }
-
- default:
- err = -EINVAL;
- EXIT;
- break;
- }
- EXIT;
- return err;
+ CERROR("-- readpage 0 for ino %lu\n", arg);
+ err = mdc_readpage(&cl, conn, arg, S_IFDIR, 0, buf, &request);
+ CERROR("-- done err %d\n", err);
+ OBD_FREE(buf, PAGE_SIZE);
+
+ GOTO(out, err);
+ }
+
+ case IOC_REQUEST_SETATTR: {
+ struct inode inode;
+ struct iattr iattr;
+
+ inode.i_ino = arg;
+ inode.i_generation = 0;
+ iattr.ia_mode = 040777;
+ iattr.ia_atime = 0;
+ iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
+
+ err = mdc_setattr(&cl, conn, &inode, &iattr, &request);
+ CERROR("-- done err %d\n", err);
+
+ GOTO(out, err);
+ }
+
+ case IOC_REQUEST_CREATE: {
+ struct inode inode;
+ struct iattr iattr;
+
+ inode.i_ino = arg;
+ inode.i_generation = 0;
+ iattr.ia_mode = 040777;
+ iattr.ia_atime = 0;
+ iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
+
+ err = mdc_create(&cl, conn, &inode,
+ "foofile", strlen("foofile"),
+ NULL, 0, 0100707, 47114711,
+ 11, 47, 0, &request);
+ CERROR("-- done err %d\n", err);
+
+ GOTO(out, err);
+ }
+
+ case IOC_REQUEST_OPEN: {
+ __u64 fh, ino;
+ copy_from_user(&ino, (__u64 *)arg, sizeof(ino));
+ CERROR("-- opening ino %llu\n", (unsigned long long)ino);
+ err = mdc_open(&cl, conn, ino, S_IFDIR, O_RDONLY, 4711, &fh,
+ &request);
+ copy_to_user((__u64 *)arg, &fh, sizeof(fh));
+ CERROR("-- done err %d (fh=%Lu)\n", err,
+ (unsigned long long)fh);
+
+ GOTO(out, err);
+ }
+
+ case IOC_REQUEST_CLOSE: {
+ CERROR("-- closing ino 2, filehandle %lu\n", arg);
+ err = mdc_close(&cl, conn, 2, S_IFDIR, arg, &request);
+ CERROR("-- done err %d\n", err);
+
+ GOTO(out, err);
+ }
+
+ default:
+ GOTO(out, err = -EINVAL);
+ }
+
+ out:
+ ptlrpc_free_req(request);
+ ptlrpc_put_connection(conn);
+ ptlrpc_cleanup_client(&cl);
+
+ RETURN(err);
}
static struct file_operations requestdev_fops = {
- ioctl: request_ioctl,
+ ioctl: request_ioctl,
};
-
static struct miscdevice request_dev = {
- REQUEST_MINOR,
- "request",
- &requestdev_fops
+ REQUEST_MINOR,
+ "request",
+ &requestdev_fops
};
-
static int __init ptlrpc_request_init(void)
{
- misc_register(&request_dev);
- return 0 ;
+ misc_register(&request_dev);
+ return 0;
}
-
static void __exit ptlrpc_request_exit(void)
{
- misc_deregister(&request_dev);
+ misc_deregister(&request_dev);
}
MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
MODULE_DESCRIPTION("Lustre MDS Request Tester v1.0");
MODULE_LICENSE("GPL");
-EXPORT_SYMBOL(mdc_create);
-EXPORT_SYMBOL(mdc_unlink);
-EXPORT_SYMBOL(mdc_rename);
-EXPORT_SYMBOL(mdc_link);
-EXPORT_SYMBOL(mdc_getattr);
-EXPORT_SYMBOL(mdc_readpage);
-EXPORT_SYMBOL(mdc_setattr);
+EXPORT_SYMBOL(mdc_connect);
+EXPORT_SYMBOL(mdc_getattr);
+EXPORT_SYMBOL(mdc_create);
+EXPORT_SYMBOL(mdc_unlink);
+EXPORT_SYMBOL(mdc_rename);
+EXPORT_SYMBOL(mdc_link);
+EXPORT_SYMBOL(mdc_readpage);
+EXPORT_SYMBOL(mdc_setattr);
+EXPORT_SYMBOL(mdc_close);
+EXPORT_SYMBOL(mdc_open);
module_init(ptlrpc_request_init);
module_exit(ptlrpc_request_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff