*/
#define EXPORT_SYMTAB
+#define DEBUG_SUBSYSTEM S_MDC
#include <linux/module.h>
#include <linux/miscdevice.h>
-
-#define DEBUG_SUBSYSTEM S_MDC
-
#include <linux/lustre_mds.h>
+#include <linux/lustre_lite.h>
+#include <linux/lustre_dlm.h>
+#include <linux/init.h>
+#include <linux/obd_lov.h>
+#include <linux/lprocfs_status.h>
#define REQUEST_MINOR 244
extern int mds_queue_req(struct ptlrpc_request *);
+extern lprocfs_vars_t status_var_nm_1[];
+extern lprocfs_vars_t status_class_var[];
-int mdc_connect(struct ptlrpc_client *cl, struct lustre_peer *peer, ino_t ino,
- int type, int valid, struct ptlrpc_request **request)
+/* should become mdc_getinfo() */
+int mdc_getstatus(struct lustre_handle *conn, struct ll_fid *rootfid)
{
struct ptlrpc_request *req;
struct mds_body *body;
int rc, size = sizeof(*body);
ENTRY;
- req = ptlrpc_prep_req(cl, peer, MDS_GETATTR, 1, &size, NULL);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_GETSTATUS, 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;
-
+ req->rq_level = LUSTRE_CONN_CON;
req->rq_replen = lustre_msg_size(1, &size);
- rc = ptlrpc_queue_wait(cl, req);
+ mds_pack_req_body(req);
+ rc = ptlrpc_queue_wait(req);
rc = ptlrpc_check_status(req, rc);
if (!rc) {
- mds_unpack_body(req);
body = lustre_msg_buf(req->rq_repmsg, 0);
- CDEBUG(D_NET, "mode: %o\n", body->mode);
+ mds_unpack_body(body);
+ memcpy(rootfid, &body->fid1, sizeof(*rootfid));
+
+ CDEBUG(D_NET, "root ino="LPU64", last_committed="LPU64
+ ", last_xid="LPU64"\n",
+ rootfid->id, req->rq_repmsg->last_committed,
+ req->rq_repmsg->last_xid);
}
EXIT;
out:
- *request = req;
+ ptlrpc_req_finished(req);
return rc;
}
+int mdc_getlovinfo(struct obd_device *obd, struct lustre_handle *mdc_connh,
+ struct ptlrpc_request **request)
+{
+ struct ptlrpc_request *req;
+ struct mds_status_req *streq;
+ int rc, size[2] = {sizeof(*streq)};
+ ENTRY;
+
+ req = ptlrpc_prep_req(class_conn2cliimp(mdc_connh), MDS_GETLOVINFO, 1,
+ size, NULL);
+ if (!req)
+ GOTO(out, rc = -ENOMEM);
+
+ *request = req;
+ streq = lustre_msg_buf(req->rq_reqmsg, 0);
+ streq->flags = HTON__u32(MDS_STATUS_LOV);
+ streq->repbuf = HTON__u32(8192);
+
+ /* prepare for reply */
+ req->rq_level = LUSTRE_CONN_CON;
+ size[0] = 512;
+ size[1] = 8192;
+ req->rq_replen = lustre_msg_size(2, size);
+
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
+
+ out:
+ RETURN(rc);
+}
+
-int mdc_getattr(struct ptlrpc_client *cl, struct lustre_peer *peer, ino_t ino,
- int type, int valid, struct ptlrpc_request **request)
+int mdc_getattr(struct lustre_handle *conn,
+ obd_id ino, int type, unsigned long valid, size_t ea_size,
+ struct ptlrpc_request **request)
{
struct ptlrpc_request *req;
struct mds_body *body;
- int rc, size = sizeof(*body);
+ int rc, size[2] = {sizeof(*body), 0}, bufcount = 1;
ENTRY;
- req = ptlrpc_prep_req(cl, peer, MDS_GETATTR, 1, &size, NULL);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_GETATTR, 1, size,
+ NULL);
if (!req)
GOTO(out, rc = -ENOMEM);
ll_ino2fid(&body->fid1, ino, 0, type);
body->valid = valid;
- req->rq_replen = lustre_msg_size(1, &size);
+ if (S_ISREG(type)) {
+ struct client_obd *mdc = &class_conn2obd(conn)->u.cli;
+ bufcount = 2;
+ size[1] = mdc->cl_max_mds_easize;
+ } else if (valid & OBD_MD_LINKNAME) {
+ bufcount = 2;
+ size[1] = ea_size;
+ body->size = ea_size;
+ CDEBUG(D_INODE, "allocating %d bytes for symlink in packet\n",
+ ea_size);
+ }
+ req->rq_replen = lustre_msg_size(bufcount, size);
+ mds_pack_req_body(req);
- rc = ptlrpc_queue_wait(cl, req);
+ rc = ptlrpc_queue_wait(req);
rc = ptlrpc_check_status(req, rc);
if (!rc) {
- mds_unpack_body(req);
body = lustre_msg_buf(req->rq_repmsg, 0);
+ mds_unpack_body(body);
CDEBUG(D_NET, "mode: %o\n", body->mode);
}
return rc;
}
-int mdc_open(struct ptlrpc_client *cl, struct lustre_peer *peer, ino_t ino,
- int type, int flags, __u64 *fh, struct ptlrpc_request **request)
+static void d_delete_aliases(struct inode *inode)
+{
+ struct dentry *dentry = NULL;
+ struct list_head *tmp;
+ int dentry_count = 0;
+ ENTRY;
+
+ spin_lock(&dcache_lock);
+ list_for_each(tmp, &inode->i_dentry) {
+ dentry = list_entry(tmp, struct dentry, d_alias);
+ dentry_count++;
+ }
+
+ /* XXX FIXME tell phil/peter that you see this -- unless you're playing
+ * with hard links, in which case, stop. */
+ LASSERT(dentry_count <= 1);
+
+ if (dentry_count == 0) {
+ spin_unlock(&dcache_lock);
+ EXIT;
+ return;
+ }
+
+ CDEBUG(D_INODE, "d_deleting dentry %p\n", dentry);
+ dget_locked(dentry);
+ spin_unlock(&dcache_lock);
+ d_delete(dentry);
+ dput(dentry);
+ EXIT;
+}
+
+static int mdc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
+ void *data, __u32 data_len, int flag)
+{
+ int rc;
+ struct lustre_handle lockh;
+ ENTRY;
+
+ switch (flag) {
+ case LDLM_CB_BLOCKING:
+ ldlm_lock2handle(lock, &lockh);
+ rc = ldlm_cli_cancel(&lockh);
+ if (rc < 0) {
+ CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
+ RETURN(rc);
+ }
+ break;
+ case LDLM_CB_CANCELING: {
+ /* Invalidate all dentries associated with this inode */
+ struct inode *inode = data;
+
+ LASSERT(inode != NULL);
+ LASSERT(data_len == sizeof(*inode));
+
+ if (S_ISDIR(inode->i_mode)) {
+ CDEBUG(D_INODE, "invalidating inode %ld\n",
+ inode->i_ino);
+ ll_invalidate_inode_pages(inode);
+ }
+
+ LASSERT(igrab(inode) == inode);
+ d_delete_aliases(inode);
+ iput(inode);
+ break;
+ }
+ default:
+ LBUG();
+ }
+
+ RETURN(0);
+}
+
+struct create_replay_data {
+ struct super_block *sb;
+ u32 generation;
+};
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+static int create_replay_find_inode(struct inode *inode, unsigned long ino,
+ void *opaque)
+#else
+static int create_replay_find_inode(struct inode *inode, void *opaque)
+#endif
{
+ struct ptlrpc_request *req = opaque;
+ struct create_replay_data *saved;
struct mds_body *body;
- int rc, size = sizeof(*body);
+
+ saved = lustre_msg_buf(req->rq_reqmsg, 5); /* lock with intent */
+
+ if (saved->generation != inode->i_generation) {
+ CDEBUG(D_HA,
+ "generation mismatch for ino %u: saved %u != inode %u\n",
+ inode->i_ino, saved->generation, inode->i_generation);
+ return 0;
+ }
+
+ body = lustre_msg_buf(req->rq_repmsg, 1);
+
+ /* XXX do I need more out of ll_update_inode? */
+ CDEBUG(D_HA, "updating inode %u generation %u to %u\n",
+ inode->i_ino, inode->i_generation, body->generation);
+
+ inode->i_generation = body->generation;
+
+ return 1;
+}
+
+static void fixup_req_for_recreate(struct ptlrpc_request *fixreq,
+ struct ptlrpc_request *req,
+ struct inode *inode)
+{
+ struct ldlm_request *lockreq;
+ struct mds_rec_link *rec; /* representative, two-fid op structure */
+ int opc;
+
+ if (fixreq->rq_import != req->rq_import) {
+ DEBUG_REQ(D_HA, fixreq, "import mismatch, skipping");
+ return;
+ }
+
+ DEBUG_REQ(D_HA, fixreq, "fixing");
+
+ /* XXX check replay_state to see if we'll actually replay. */
+
+ /* We only care about LDLM_ENQUEUE and MDS_REINT requests. */
+ if (fixreq->rq_reqmsg->opc == LDLM_ENQUEUE) {
+ lockreq = lustre_msg_buf(fixreq->rq_reqmsg, 0);
+
+ if (lockreq->lock_desc.l_resource.lr_type != LDLM_PLAIN &&
+ !(lockreq->lock_flags & LDLM_FL_HAS_INTENT)) {
+ DEBUG_REQ(D_HA, fixreq, "non-intent lock, skipping");
+ return;
+ }
+
+ if (fixreq->rq_reqmsg->bufcount < 2) {
+ DEBUG_REQ(D_HA, fixreq,
+ "short intent (probably readdir), skipping");
+ return;
+ }
+
+ /* XXX endianness is probably very very wrong here. Very. */
+ rec = lustre_msg_buf(fixreq->rq_reqmsg, 2);
+ } else if (fixreq->rq_reqmsg->opc == MDS_REINT) {
+ rec = lustre_msg_buf(fixreq->rq_reqmsg, 0);
+ } else if (fixreq->rq_reqmsg->opc == MDS_OPEN) {
+ struct mds_body *body = lustre_msg_buf(fixreq->rq_reqmsg, 0);
+ DEBUG_REQ(D_HA, fixreq, "fixing fid1: %u -> %u",
+ body->fid1.generation, inode->i_generation);
+ body->fid1.generation = inode->i_generation;
+ return;
+ } else {
+ DEBUG_REQ(D_HA, fixreq, "not a replayable request, skipping");
+ return;
+ }
+
+ if (rec->lk_fid1.id == inode->i_ino) {
+ DEBUG_REQ(D_HA, fixreq, "fixing fid1: %u -> %u",
+ rec->lk_fid1.generation, inode->i_generation);
+ rec->lk_fid1.generation = inode->i_generation;
+ }
+
+ /* Some ops have two FIDs. ZZZ We rely on the identical
+ * placement of that second FID in all such ops' messages.
+ */
+ opc = rec->lk_opcode & REINT_OPCODE_MASK;
+ if ((opc == REINT_LINK || opc == REINT_UNLINK ||
+ opc == REINT_RENAME) &&
+ rec->lk_fid2.id == inode->i_ino) {
+ DEBUG_REQ(D_HA, fixreq, "fixing fid2: %u -> %u",
+ rec->lk_fid2.generation, inode->i_generation);
+ rec->lk_fid2.generation = inode->i_generation;
+ }
+}
+
+static void mdc_replay_create(struct ptlrpc_request *req)
+{
+ struct create_replay_data *saved;
+ struct mds_body *body;
+ struct inode *inode;
+ struct list_head *tmp;
+
+ if (req->rq_reqmsg->opc == MDS_REINT)
+ LBUG(); /* XXX don't handle the non-intent case yet */
+
+ body = lustre_msg_buf(req->rq_repmsg, 1);
+ saved = lustre_msg_buf(req->rq_reqmsg, 5); /* lock with intent */
+
+ CDEBUG(D_HA, "create of inode %d replayed; gen %u -> %u\n",
+ body->fid1.id, saved->generation, body->generation);
+ /* XXX cargo-culted right out of ll_iget */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+ inode = iget4(saved->sb, body->fid1.id, create_replay_find_inode, req);
+#endif
+#if 0
+ {
+ extern int ll_read_inode2(struct inode *inode, void *opaque);
+ inode = iget5_locked(saved->sb, body->fid1.id,
+ create_replay_find_inode,
+ ll_read_inode2, req);
+
+ if (!inode)
+ LBUG(); /* XXX ick */
+
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+ }
+#endif
+
+ /* Now that we've updated the generation, we need to go and find all
+ * the other requests that refer to this file and will be replayed,
+ * and teach them about our new generation.
+ */
+ list_for_each(tmp, &req->rq_connection->c_sending_head) {
+ struct ptlrpc_request *fixreq =
+ list_entry(tmp, struct ptlrpc_request, rq_list);
+
+ fixup_req_for_recreate(fixreq, req, inode);
+ }
+
+ list_for_each(tmp, &req->rq_connection->c_delayed_head) {
+ struct ptlrpc_request *fixreq =
+ list_entry(tmp, struct ptlrpc_request, rq_list);
+
+ fixup_req_for_recreate(fixreq, req, inode);
+ }
+}
+
+void mdc_store_create_replay_data(struct ptlrpc_request *req,
+ struct super_block *sb)
+{
+ struct create_replay_data *saved =
+ lustre_msg_buf(req->rq_reqmsg, 5);
+ struct mds_body *body = lustre_msg_buf(req->rq_repmsg, 1);
+
+
+ if (req->rq_reqmsg->opc == MDS_REINT)
+ LBUG(); /* XXX don't handle the non-intent case yet */
+
+ saved->generation = body->generation;
+ saved->sb = sb; /* XXX is this safe? */
+
+ req->rq_replay_cb = mdc_replay_create;
+}
+
+int mdc_enqueue(struct lustre_handle *conn, int lock_type,
+ struct lookup_intent *it, int lock_mode, struct inode *dir,
+ struct dentry *de, struct lustre_handle *lockh,
+ char *tgt, int tgtlen, void *data, int datalen)
+{
struct ptlrpc_request *req;
+ struct obd_device *obddev = class_conn2obd(conn);
+ __u64 res_id[RES_NAME_SIZE] = {dir->i_ino, (__u64)dir->i_generation};
+ int size[6] = {sizeof(struct ldlm_request), sizeof(struct ldlm_intent)};
+ int rc, flags = LDLM_FL_HAS_INTENT;
+ int repsize[3] = {sizeof(struct ldlm_reply),
+ sizeof(struct mds_body),
+ obddev->u.cli.cl_max_mds_easize};
+ struct ldlm_reply *dlm_rep;
+ struct ldlm_intent *lit;
+ struct ldlm_request *lockreq;
+ ENTRY;
+
+ LDLM_DEBUG_NOLOCK("mdsintent %s dir %ld", ldlm_it2str(it->it_op),
+ dir->i_ino);
- req = ptlrpc_prep_req(cl, peer, MDS_OPEN, 1, &size, NULL);
+ if (it->it_op & (IT_MKDIR | IT_CREAT | IT_SYMLINK | IT_MKNOD)) {
+ switch (it->it_op) {
+ case IT_MKDIR:
+ it->it_mode |= S_IFDIR;
+ break;
+ case (IT_CREAT|IT_OPEN):
+ case IT_CREAT:
+ it->it_mode |= S_IFREG;
+ break;
+ case IT_SYMLINK:
+ it->it_mode |= S_IFLNK;
+ break;
+ }
+ it->it_mode &= ~current->fs->umask;
+
+ size[2] = sizeof(struct mds_rec_create);
+ size[3] = de->d_name.len + 1;
+ size[4] = tgtlen + 1;
+ size[5] = sizeof(struct create_replay_data);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 6,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1);
+ lit->opc = NTOH__u64((__u64)it->it_op);
+
+ /* pack the intended request */
+ mds_create_pack(req, 2, dir, it->it_mode, 0, current->fsuid,
+ current->fsgid, CURRENT_TIME, de->d_name.name,
+ de->d_name.len, tgt, tgtlen);
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else if (it->it_op == IT_RENAME2) {
+ struct dentry *old_de = it->it_data;
+
+ size[2] = sizeof(struct mds_rec_rename);
+ size[3] = old_de->d_name.len + 1;
+ size[4] = de->d_name.len + 1;
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 5,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1);
+ lit->opc = NTOH__u64((__u64)it->it_op);
+
+ /* pack the intended request */
+ mds_rename_pack(req, 2, old_de->d_parent->d_inode, dir,
+ old_de->d_name.name, old_de->d_name.len,
+ de->d_name.name, de->d_name.len);
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else if (it->it_op == IT_LINK2) {
+ struct dentry *old_de = it->it_data;
+
+ size[2] = sizeof(struct mds_rec_link);
+ size[3] = de->d_name.len + 1;
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 4,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1);
+ lit->opc = NTOH__u64((__u64)it->it_op);
+
+ /* pack the intended request */
+ mds_link_pack(req, 2, old_de->d_inode, dir,
+ de->d_name.name, de->d_name.len);
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else if (it->it_op == IT_UNLINK || it->it_op == IT_RMDIR) {
+ size[2] = sizeof(struct mds_rec_unlink);
+ size[3] = de->d_name.len + 1;
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 4,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1);
+ lit->opc = NTOH__u64((__u64)it->it_op);
+
+ /* pack the intended request */
+ mds_unlink_pack(req, 2, dir, NULL,
+ it->it_op == IT_UNLINK ? S_IFREG : S_IFDIR,
+ de->d_name.name, de->d_name.len);
+
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else if (it->it_op & (IT_GETATTR | IT_RENAME | IT_LINK |
+ IT_OPEN | IT_SETATTR | IT_LOOKUP | IT_READLINK)) {
+ size[2] = sizeof(struct mds_body);
+ size[3] = de->d_name.len + 1;
+
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 4,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1);
+ lit->opc = NTOH__u64((__u64)it->it_op);
+
+ /* pack the intended request */
+ mds_getattr_pack(req, 2, dir, de->d_name.name, de->d_name.len);
+
+ /* we need to replay opens */
+ if (it->it_op == IT_OPEN)
+ req->rq_flags |= PTL_RPC_FL_REPLAY;
+
+ /* get ready for the reply */
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else if (it->it_op == IT_READDIR) {
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), LDLM_ENQUEUE, 1,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* get ready for the reply */
+ req->rq_replen = lustre_msg_size(1, repsize);
+ } else {
+ LBUG();
+ RETURN(-EINVAL);
+ }
+#warning FIXME: the data here needs to be different if a lock was granted for a different inode
+ rc = ldlm_cli_enqueue(conn, req, obddev->obd_namespace, NULL, res_id,
+ lock_type, NULL, 0, lock_mode, &flags,
+ ldlm_completion_ast, mdc_blocking_ast, data,
+ datalen, lockh);
+ if (rc == -ENOENT) {
+ /* This can go when we're sure that this can never happen */
+ LBUG();
+ }
+ if (rc == ELDLM_LOCK_ABORTED) {
+ lock_mode = 0;
+ memset(lockh, 0, sizeof(*lockh));
+ /* rc = 0 */
+ } else if (rc != 0) {
+ CERROR("ldlm_cli_enqueue: %d\n", rc);
+ RETURN(rc);
+ }
+
+ /* On replay, we don't want the lock granted. */
+ lockreq = lustre_msg_buf(req->rq_reqmsg, 0);
+ lockreq->lock_flags |= LDLM_FL_INTENT_ONLY;
+
+ dlm_rep = lustre_msg_buf(req->rq_repmsg, 0);
+ it->it_disposition = (int) dlm_rep->lock_policy_res1;
+ it->it_status = (int) dlm_rep->lock_policy_res2;
+ it->it_lock_mode = lock_mode;
+ it->it_data = req;
+
+ RETURN(0);
+}
+
+int mdc_cancel_unused(struct lustre_handle *conn, struct inode *inode,
+ int flags)
+{
+ __u64 res_id[RES_NAME_SIZE] = {inode->i_ino, inode->i_generation};
+ struct obd_device *obddev = class_conn2obd(conn);
+ ENTRY;
+ RETURN(ldlm_cli_cancel_unused(obddev->obd_namespace, res_id, flags));
+}
+
+struct replay_open_data {
+ struct lustre_handle *fh;
+};
+
+static void mdc_replay_open(struct ptlrpc_request *req)
+{
+ int offset;
+ struct replay_open_data *saved;
+ struct mds_body *body = lustre_msg_buf(req->rq_repmsg, 0);
+
+ if (lustre_msg_get_op_flags(req->rq_reqmsg) & MDS_OPEN_HAS_EA)
+ offset = 2;
+ else
+ offset = 1;
+
+ saved = lustre_msg_buf(req->rq_reqmsg, offset);
+ mds_unpack_body(body);
+ CDEBUG(D_HA, "updating from "LPD64"/"LPD64" to "LPD64"/"LPD64"\n",
+ saved->fh->addr, saved->fh->cookie,
+ body->handle.addr, body->handle.cookie);
+ memcpy(saved->fh, &body->handle, sizeof(body->handle));
+}
+
+int mdc_open(struct lustre_handle *conn, obd_id ino, int type, int flags,
+ struct lov_stripe_md *lsm, struct lustre_handle *fh,
+ struct ptlrpc_request **request)
+{
+ struct mds_body *body;
+ struct replay_open_data *replay_data;
+ int rc, size[3] = {sizeof(*body), sizeof(*replay_data)}, bufcount = 2;
+ struct ptlrpc_request *req;
+ ENTRY;
+
+ if (lsm) {
+ bufcount = 3;
+ size[2] = size[1]; /* shuffle the spare data along */
+
+ size[1] = lsm->lsm_mds_easize;
+ }
+
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_OPEN, bufcount, size,
+ NULL);
if (!req)
GOTO(out, rc = -ENOMEM);
+ if (lsm)
+ lustre_msg_set_op_flags(req->rq_reqmsg, MDS_OPEN_HAS_EA);
+
+
+ req->rq_flags |= PTL_RPC_FL_REPLAY;
body = lustre_msg_buf(req->rq_reqmsg, 0);
+
ll_ino2fid(&body->fid1, ino, 0, type);
body->flags = HTON__u32(flags);
+ memcpy(&body->handle, fh, sizeof(body->handle));
- req->rq_replen = lustre_msg_size(1, &size);
+ if (lsm)
+ lov_packmd(lustre_msg_buf(req->rq_reqmsg, 1), lsm);
- rc = ptlrpc_queue_wait(cl, req);
- rc = ptlrpc_check_status(req, rc);
+ req->rq_replen = lustre_msg_size(1, size);
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
if (!rc) {
- mds_unpack_body(req);
body = lustre_msg_buf(req->rq_repmsg, 0);
- *fh = body->objid;
+ mds_unpack_body(body);
+ memcpy(fh, &body->handle, sizeof(*fh));
}
+ /* If open is replayed, we need to fix up the fh. */
+ req->rq_replay_cb = mdc_replay_open;
+ replay_data = lustre_msg_buf(req->rq_reqmsg, lsm ? 2 : 1);
+ replay_data->fh = fh;
+
EXIT;
out:
*request = req;
return rc;
}
-int mdc_close(struct ptlrpc_client *cl, struct lustre_peer *peer, ino_t ino,
- int type, __u64 fh, struct ptlrpc_request **request)
+int mdc_close(struct lustre_handle *conn, obd_id ino, int type,
+ struct lustre_handle *fh, struct ptlrpc_request **request)
{
struct mds_body *body;
int rc, size = sizeof(*body);
struct ptlrpc_request *req;
- req = ptlrpc_prep_req(cl, peer, MDS_CLOSE, 1, &size, NULL);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_CLOSE, 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->objid = fh;
+ memcpy(&body->handle, fh, sizeof(body->handle));
- req->rq_replen = lustre_msg_size(1, &size);
+ req->rq_replen = lustre_msg_size(0, NULL);
- rc = ptlrpc_queue_wait(cl, req);
+ rc = ptlrpc_queue_wait(req);
rc = ptlrpc_check_status(req, rc);
EXIT;
return rc;
}
-int mdc_readpage(struct ptlrpc_client *cl, struct lustre_peer *peer, ino_t ino,
- int type, __u64 offset, char *addr,
- struct ptlrpc_request **request)
+int mdc_readpage(struct lustre_handle *conn, obd_id ino, int type, __u64 offset,
+ char *addr, struct ptlrpc_request **request)
{
+ struct ptlrpc_connection *connection =
+ client_conn2cli(conn)->cl_import.imp_connection;
struct ptlrpc_request *req = NULL;
- struct ptlrpc_bulk_desc *bulk = NULL;
- struct niobuf niobuf;
+ struct ptlrpc_bulk_desc *desc = NULL;
+ struct ptlrpc_bulk_page *bulk = NULL;
struct mds_body *body;
- int rc, size[2] = {sizeof(*body), sizeof(struct niobuf)};
- char *bufs[2] = {NULL, (char *)&niobuf};
-
- niobuf.addr = (__u64) (long) addr;
+ int rc, size = sizeof(*body);
+ ENTRY;
- CDEBUG(D_INODE, "inode: %ld\n", ino);
+ CDEBUG(D_INODE, "inode: %ld\n", (long)ino);
- bulk = ptlrpc_prep_bulk(peer);
- if (bulk == NULL) {
- CERROR("%s: cannot init bulk desc\n", __FUNCTION__);
- rc = -ENOMEM;
- goto out;
- }
+ desc = ptlrpc_prep_bulk(connection);
+ if (desc == NULL)
+ GOTO(out, rc = -ENOMEM);
- req = ptlrpc_prep_req(cl, peer, MDS_READPAGE, 2, size, bufs);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_READPAGE, 1, &size,
+ NULL);
if (!req)
- GOTO(out, rc = -ENOMEM);
+ GOTO(out2, rc = -ENOMEM);
- bulk->b_buflen = PAGE_SIZE;
- bulk->b_buf = (void *)(long)niobuf.addr;
- bulk->b_portal = MDS_BULK_PORTAL;
- bulk->b_xid = req->rq_xid;
+ bulk = ptlrpc_prep_bulk_page(desc);
+ bulk->bp_buflen = PAGE_SIZE;
+ bulk->bp_buf = addr;
+ bulk->bp_xid = req->rq_xid;
+ desc->bd_portal = MDS_BULK_PORTAL;
- rc = ptlrpc_register_bulk(bulk);
+ rc = ptlrpc_register_bulk(desc);
if (rc) {
CERROR("couldn't setup bulk sink: error %d.\n", rc);
- GOTO(out, rc);
+ GOTO(out2, rc);
}
body = lustre_msg_buf(req->rq_reqmsg, 0);
body->fid1.f_type = type;
body->size = offset;
- req->rq_replen = lustre_msg_size(1, size);
-
- rc = ptlrpc_queue_wait(cl, req);
+ req->rq_replen = lustre_msg_size(1, &size);
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
if (rc) {
- CERROR("error in handling %d\n", rc);
- ptlrpc_abort_bulk(bulk);
- GOTO(out, rc);
+ ptlrpc_abort_bulk(desc);
+ GOTO(out2, rc);
+ } else {
+ body = lustre_msg_buf(req->rq_repmsg, 0);
+ mds_unpack_body(body);
}
- mds_unpack_body(req);
EXIT;
-
+ out2:
+ ptlrpc_free_bulk(desc);
out:
*request = req;
- if (bulk != NULL)
- OBD_FREE(bulk, sizeof(*bulk));
return rc;
}
-static int request_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int mdc_statfs(struct lustre_handle *conn, struct obd_statfs *osfs)
{
- int err;
- struct ptlrpc_client cl;
- struct lustre_peer peer;
- struct ptlrpc_request *request;
-
+ struct ptlrpc_request *req;
+ int rc, size = sizeof(*osfs);
ENTRY;
- 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 ) {
- CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
- _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
- RETURN(-EINVAL);
- }
-
- ptlrpc_init_client(NULL, MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL, &cl);
- err = ptlrpc_connect_client("mds", &cl, &peer);
- if (err) {
- 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, &peer, arg, S_IFDIR, ~0, &request);
- CERROR("-- done err %d\n", err);
-
- GOTO(out, err);
- }
-
- case IOC_REQUEST_READPAGE: {
- char *buf;
- OBD_ALLOC(buf, PAGE_SIZE);
- if (!buf) {
- err = -ENOMEM;
- break;
- }
- CERROR("-- readpage 0 for ino %lu\n", arg);
- err = mdc_readpage(&cl, &peer, 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, &peer, &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, &peer, &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", ino);
- err = mdc_open(&cl, &peer, ino, S_IFDIR, O_RDONLY, &fh,
- &request);
- copy_to_user((__u64 *)arg, &fh, sizeof(fh));
- CERROR("-- done err %d (fh=%Lu)\n", err, fh);
+ req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_STATFS, 0, NULL,
+ NULL);
+ if (!req)
+ RETURN(-ENOMEM);
- GOTO(out, err);
- }
+ req->rq_replen = lustre_msg_size(1, &size);
- case IOC_REQUEST_CLOSE: {
- CERROR("-- closing ino 2, filehandle %lu\n", arg);
- err = mdc_close(&cl, &peer, 2, S_IFDIR, arg, &request);
- CERROR("-- done err %d\n", err);
+ rc = ptlrpc_queue_wait(req);
+ rc = ptlrpc_check_status(req, rc);
- GOTO(out, err);
- }
+ if (rc)
+ GOTO(out, rc);
- default:
- RETURN(-EINVAL);
- }
+ obd_statfs_unpack(osfs, lustre_msg_buf(req->rq_repmsg, 0));
- out:
- ptlrpc_free_req(request);
+ EXIT;
+out:
+ ptlrpc_req_finished(req);
- RETURN(err);
+ return rc;
+}
+int mdc_attach(struct obd_device *dev,
+ obd_count len, void *data)
+{
+ int rc;
+ rc = lprocfs_reg_obd(dev, (lprocfs_vars_t*)status_var_nm_1, (void*)dev);
+ return rc;
}
+int mdc_detach(struct obd_device *dev)
+{
+ int rc;
+ rc = lprocfs_dereg_obd(dev);
+ return rc;
-static struct file_operations requestdev_fops = {
- ioctl: request_ioctl,
-};
-
-static struct miscdevice request_dev = {
- REQUEST_MINOR,
- "request",
- &requestdev_fops
+}
+struct obd_ops mdc_obd_ops = {
+ o_attach: mdc_attach,
+ o_detach: mdc_detach,
+ o_setup: client_obd_setup,
+ o_cleanup: client_obd_cleanup,
+ o_connect: client_obd_connect,
+ o_disconnect: client_obd_disconnect,
+ o_statfs: mdc_statfs,
};
static int __init ptlrpc_request_init(void)
{
- misc_register(&request_dev);
+ int rc;
+ rc = class_register_type(&mdc_obd_ops,
+ (lprocfs_vars_t*)status_class_var,
+ LUSTRE_MDC_NAME);
+ if(rc)
+ RETURN(rc);
return 0;
+
}
static void __exit ptlrpc_request_exit(void)
{
- misc_deregister(&request_dev);
+
+ class_unregister_type(LUSTRE_MDC_NAME);
+
}
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre MDS Request Tester v1.0");
+MODULE_AUTHOR("Cluster File Systems <info@clusterfs.com>");
+MODULE_DESCRIPTION("Lustre Metadata Client v1.0");
MODULE_LICENSE("GPL");
+EXPORT_SYMBOL(mdc_getstatus);
+EXPORT_SYMBOL(mdc_getlovinfo);
+EXPORT_SYMBOL(mdc_enqueue);
+EXPORT_SYMBOL(mdc_cancel_unused);
+EXPORT_SYMBOL(mdc_getattr);
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_close);
EXPORT_SYMBOL(mdc_open);
+EXPORT_SYMBOL(mdc_store_create_replay_data);
+
module_init(ptlrpc_request_init);
module_exit(ptlrpc_request_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff