}
-static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
{
- struct nfs_client *clp = server->nfs_client;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
}
+static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+{
+ do_renew_lease(server->nfs_client, timestamp);
+}
+
#if defined(CONFIG_NFS_V4_1)
/*
{
struct rpc_task *task;
- if (!test_bit(NFS4CLNT_SESSION_DRAINING, &ses->clp->cl_state)) {
+ if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
task = rpc_wake_up_next(&ses->fc_slot_table.slot_tbl_waitq);
if (task)
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
complete(&ses->complete);
}
-static void nfs41_sequence_free_slot(const struct nfs_client *clp,
- struct nfs4_sequence_res *res)
+static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
{
struct nfs4_slot_table *tbl;
- tbl = &clp->cl_session->fc_slot_table;
+ tbl = &res->sr_session->fc_slot_table;
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
/* just wake up the next guy waiting since
* we may have not consumed a slot after all */
spin_lock(&tbl->slot_tbl_lock);
nfs4_free_slot(tbl, res->sr_slotid);
- nfs41_check_drain_session_complete(clp->cl_session);
+ nfs41_check_drain_session_complete(res->sr_session);
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
}
-static void nfs41_sequence_done(struct nfs_client *clp,
- struct nfs4_sequence_res *res,
- int rpc_status)
+static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
{
unsigned long timestamp;
struct nfs4_slot_table *tbl;
struct nfs4_slot *slot;
+ struct nfs_client *clp;
/*
* sr_status remains 1 if an RPC level error occurred. The server
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE)
goto out;
+ tbl = &res->sr_session->fc_slot_table;
+ slot = tbl->slots + res->sr_slotid;
+
/* Check the SEQUENCE operation status */
- if (res->sr_status == 0) {
- tbl = &clp->cl_session->fc_slot_table;
- slot = tbl->slots + res->sr_slotid;
+ switch (res->sr_status) {
+ case 0:
/* Update the slot's sequence and clientid lease timer */
++slot->seq_nr;
timestamp = res->sr_renewal_time;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal, timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ clp = res->sr_session->clp;
+ do_renew_lease(clp, timestamp);
/* Check sequence flags */
if (atomic_read(&clp->cl_count) > 1)
nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
+ break;
+ case -NFS4ERR_DELAY:
+ /* The server detected a resend of the RPC call and
+ * returned NFS4ERR_DELAY as per Section 2.10.6.2
+ * of RFC5661.
+ */
+ dprintk("%s: slot=%d seq=%d: Operation in progress\n",
+ __func__, res->sr_slotid, slot->seq_nr);
+ goto out_retry;
+ default:
+ /* Just update the slot sequence no. */
+ ++slot->seq_nr;
}
out:
/* The session may be reset by one of the error handlers. */
dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);
- nfs41_sequence_free_slot(clp, res);
+ nfs41_sequence_free_slot(res);
+ return 1;
+out_retry:
+ if (!rpc_restart_call(task))
+ goto out;
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return 0;
+}
+
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ if (res->sr_session == NULL)
+ return 1;
+ return nfs41_sequence_done(task, res);
}
/*
if (res->sr_slotid != NFS4_MAX_SLOT_TABLE)
return 0;
- memset(res, 0, sizeof(*res));
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
tbl = &session->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
- if (test_bit(NFS4CLNT_SESSION_DRAINING, &session->clp->cl_state) &&
+ if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
/*
* The state manager will wait until the slot table is empty.
res->sr_session = session;
res->sr_slotid = slotid;
res->sr_renewal_time = jiffies;
+ res->sr_status_flags = 0;
/*
* sr_status is only set in decode_sequence, and so will remain
* set to 1 if an rpc level failure occurs.
return 0;
}
-int nfs4_setup_sequence(struct nfs_client *clp,
+int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply,
struct rpc_task *task)
{
+ struct nfs4_session *session = nfs4_get_session(server);
int ret = 0;
+ if (session == NULL) {
+ args->sa_session = NULL;
+ res->sr_session = NULL;
+ goto out;
+ }
+
dprintk("--> %s clp %p session %p sr_slotid %d\n",
- __func__, clp, clp->cl_session, res->sr_slotid);
+ __func__, session->clp, session, res->sr_slotid);
- if (!nfs4_has_session(clp))
- goto out;
- ret = nfs41_setup_sequence(clp->cl_session, args, res, cache_reply,
+ ret = nfs41_setup_sequence(session, args, res, cache_reply,
task);
- if (ret && ret != -EAGAIN) {
- /* terminate rpc task */
- task->tk_status = ret;
- task->tk_action = NULL;
- }
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
struct nfs41_call_sync_data {
- struct nfs_client *clp;
+ const struct nfs_server *seq_server;
struct nfs4_sequence_args *seq_args;
struct nfs4_sequence_res *seq_res;
int cache_reply;
{
struct nfs41_call_sync_data *data = calldata;
- dprintk("--> %s data->clp->cl_session %p\n", __func__,
- data->clp->cl_session);
- if (nfs4_setup_sequence(data->clp, data->seq_args,
+ dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
+
+ if (nfs4_setup_sequence(data->seq_server, data->seq_args,
data->seq_res, data->cache_reply, task))
return;
rpc_call_start(task);
{
struct nfs41_call_sync_data *data = calldata;
- nfs41_sequence_done(data->clp, data->seq_res, task->tk_status);
+ nfs41_sequence_done(task, data->seq_res);
}
struct rpc_call_ops nfs41_call_sync_ops = {
.rpc_call_done = nfs41_call_sync_done,
};
-static int nfs4_call_sync_sequence(struct nfs_client *clp,
- struct rpc_clnt *clnt,
+static int nfs4_call_sync_sequence(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int ret;
struct rpc_task *task;
struct nfs41_call_sync_data data = {
- .clp = clp,
+ .seq_server = server,
.seq_args = args,
.seq_res = res,
.cache_reply = cache_reply,
};
struct rpc_task_setup task_setup = {
- .rpc_client = clnt,
+ .rpc_client = server->client,
.rpc_message = msg,
.callback_ops = &nfs41_call_sync_ops,
.callback_data = &data
struct nfs4_sequence_res *res,
int cache_reply)
{
- return nfs4_call_sync_sequence(server->nfs_client, server->client,
- msg, args, res, cache_reply, 0);
+ return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0);
}
+#else
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ return 1;
+}
#endif /* CONFIG_NFS_V4_1 */
int _nfs4_call_sync(struct nfs_server *server,
}
#define nfs4_call_sync(server, msg, args, res, cache_reply) \
- (server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
+ (server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
&(res)->seq_res, (cache_reply))
-static void nfs4_sequence_done(const struct nfs_server *server,
- struct nfs4_sequence_res *res, int rpc_status)
-{
-#ifdef CONFIG_NFS_V4_1
- if (nfs4_has_session(server->nfs_client))
- nfs41_sequence_done(server->nfs_client, res, rpc_status);
-#endif /* CONFIG_NFS_V4_1 */
-}
-
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
- if (flags & O_EXCL) {
- if (nfs4_has_persistent_session(server->nfs_client)) {
- /* GUARDED */
- p->o_arg.u.attrs = &p->attrs;
- memcpy(&p->attrs, attrs, sizeof(p->attrs));
- } else { /* EXCLUSIVE4_1 */
- u32 *s = (u32 *) p->o_arg.u.verifier.data;
- s[0] = jiffies;
- s[1] = current->pid;
- }
- } else if (flags & O_CREAT) {
+ if (flags & O_CREAT) {
+ u32 *s;
+
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
+ s = (u32 *) p->o_arg.u.verifier.data;
+ s[0] = jiffies;
+ s[1] = current->pid;
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- return;
if (data->rpc_status == 0) {
memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
sizeof(data->o_res.stateid.data));
}
/* Update sequence id. */
data->o_arg.id = sp->so_owner_id.id;
- data->o_arg.clientid = sp->so_client->cl_clientid;
+ data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
+ if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res, 1, task))
return;
data->rpc_status = task->tk_status;
- nfs4_sequence_done(data->o_arg.server, &data->o_res.seq_res,
- task->tk_status);
-
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
+
if (task->tk_status == 0) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) {
/* Use that stateid */
} else if (state != NULL) {
- nfs4_copy_stateid(&arg.stateid, state, current->files);
+ nfs4_copy_stateid(&arg.stateid, state, current->files, current->tgid);
} else
memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
- nfs4_sequence_done(server, &calldata->res.seq_res, task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence((NFS_SERVER(calldata->inode))->nfs_client,
+ if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
&calldata->arg.seq_args, &calldata->res.seq_res,
1, task))
return;
return ret;
}
-struct dentry *
-nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
+struct inode *
+nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *attr)
{
- struct path path = {
- .mnt = nd->path.mnt,
- .dentry = dentry,
- };
- struct dentry *parent;
- struct iattr attr;
- struct rpc_cred *cred;
struct nfs4_state *state;
- struct dentry *res;
- fmode_t fmode = nd->intent.open.flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
-
- if (nd->flags & LOOKUP_CREATE) {
- attr.ia_mode = nd->intent.open.create_mode;
- attr.ia_valid = ATTR_MODE;
- if (!IS_POSIXACL(dir))
- attr.ia_mode &= ~current_umask();
- } else {
- attr.ia_valid = 0;
- BUG_ON(nd->intent.open.flags & O_CREAT);
- }
- cred = rpc_lookup_cred();
- if (IS_ERR(cred))
- return (struct dentry *)cred;
- parent = dentry->d_parent;
/* Protect against concurrent sillydeletes */
- nfs_block_sillyrename(parent);
- state = nfs4_do_open(dir, &path, fmode, nd->intent.open.flags, &attr, cred);
- put_rpccred(cred);
- if (IS_ERR(state)) {
- if (PTR_ERR(state) == -ENOENT) {
- d_add(dentry, NULL);
- nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
- }
- nfs_unblock_sillyrename(parent);
- return (struct dentry *)state;
- }
- res = d_add_unique(dentry, igrab(state->inode));
- if (res != NULL)
- path.dentry = res;
- nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
- nfs_unblock_sillyrename(parent);
- nfs4_intent_set_file(nd, &path, state, fmode);
- return res;
+ state = nfs4_do_open(dir, &ctx->path, ctx->mode, open_flags, attr, ctx->cred);
+ if (IS_ERR(state))
+ return ERR_CAST(state);
+ ctx->state = state;
+ return igrab(state->inode);
}
int
out:
if (page)
__free_page(page);
- if (locations)
- kfree(locations);
+ kfree(locations);
return status;
}
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
- nfs4_sequence_done(res->server, &res->seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &res->seq_res))
+ return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
dprintk("--> %s\n", __func__);
- nfs4_sequence_done(server, &data->res.seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, server->nfs_client);
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
+
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
nfs4_schedule_state_recovery(clp);
return;
}
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, timestamp);
}
static const struct rpc_call_ops nfs4_renew_ops = {
status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
if (status < 0)
return status;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,now))
- clp->cl_last_renewal = now;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, now);
return 0;
}
}
static int
-_nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs_client *clp, struct nfs4_state *state)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
- if (!clp || task->tk_status >= 0)
+ struct nfs_client *clp = server->nfs_client;
+
+ if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_ADMIN_REVOKED:
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
- if (server)
- nfs_inc_server_stats(server, NFSIOS_DELAY);
+ nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
return -EAGAIN;
}
-static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
-{
- return _nfs4_async_handle_error(task, server, server->nfs_client, state);
-}
-
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
{
struct nfs4_delegreturndata *data = calldata;
- nfs4_sequence_done(data->res.server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_STALE_STATEID:
d_data = (struct nfs4_delegreturndata *)data;
- if (nfs4_setup_sequence(d_data->res.server->nfs_client,
+ if (nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
&d_data->res.seq_res, 1, task))
return;
{
struct nfs4_unlockdata *calldata = data;
- nfs4_sequence_done(calldata->server, &calldata->res.seq_res,
- task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
return;
}
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(calldata->server->nfs_client,
+ if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res, 1, task))
return;
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->server->nfs_client, &data->arg.seq_args,
+ if (nfs4_setup_sequence(data->server,
+ &data->arg.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
dprintk("%s: begin!\n", __func__);
- nfs4_sequence_done(data->server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- goto out;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
return err;
}
+static void nfs4_release_lockowner_release(void *calldata)
+{
+ kfree(calldata);
+}
+
+const struct rpc_call_ops nfs4_release_lockowner_ops = {
+ .rpc_release = nfs4_release_lockowner_release,
+};
+
+void nfs4_release_lockowner(const struct nfs4_lock_state *lsp)
+{
+ struct nfs_server *server = lsp->ls_state->owner->so_server;
+ struct nfs_release_lockowner_args *args;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RELEASE_LOCKOWNER],
+ };
+
+ if (server->nfs_client->cl_mvops->minor_version != 0)
+ return;
+ args = kmalloc(sizeof(*args), GFP_NOFS);
+ if (!args)
+ return;
+ args->lock_owner.clientid = server->nfs_client->cl_clientid;
+ args->lock_owner.id = lsp->ls_id.id;
+ msg.rpc_argp = args;
+ rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
+}
+
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
(struct nfs4_get_lease_time_data *)calldata;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(data->clp, &data->res->lr_seq_res, task->tk_status);
+ if (!nfs41_sequence_done(task, &data->res->lr_seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
if (!session)
return NULL;
- /*
- * The create session reply races with the server back
- * channel probe. Mark the client NFS_CS_SESSION_INITING
- * so that the client back channel can find the
- * nfs_client struct
- */
- clp->cl_cons_state = NFS_CS_SESSION_INITING;
init_completion(&session->complete);
tbl = &session->fc_slot_table;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+ session->session_state = 1<<NFS4_SESSION_INITING;
+
session->clp = clp;
return session;
}
if (!nfs4_has_session(clp))
return 0;
+ session = clp->cl_session;
+ if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
+ return 0;
+
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
- session = clp->cl_session;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
/*
* Renew the cl_session lease.
*/
-static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
-{
+struct nfs4_sequence_data {
+ struct nfs_client *clp;
struct nfs4_sequence_args args;
struct nfs4_sequence_res res;
-
- struct rpc_message msg = {
- .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
- .rpc_argp = &args,
- .rpc_resp = &res,
- .rpc_cred = cred,
- };
-
- args.sa_cache_this = 0;
-
- return nfs4_call_sync_sequence(clp, clp->cl_rpcclient, &msg, &args,
- &res, args.sa_cache_this, 1);
-}
+};
static void nfs41_sequence_release(void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
if (atomic_read(&clp->cl_count) > 1)
nfs4_schedule_state_renewal(clp);
nfs_put_client(clp);
+ kfree(calldata);
+}
+
+static int nfs41_sequence_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
}
static void nfs41_sequence_call_done(struct rpc_task *task, void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
- nfs41_sequence_done(clp, task->tk_msg.rpc_resp, task->tk_status);
+ if (!nfs41_sequence_done(task, task->tk_msg.rpc_resp))
+ return;
if (task->tk_status < 0) {
dprintk("%s ERROR %d\n", __func__, task->tk_status);
if (atomic_read(&clp->cl_count) == 1)
goto out;
- if (_nfs4_async_handle_error(task, NULL, clp, NULL)
- == -EAGAIN) {
- nfs_restart_rpc(task, clp);
+ if (nfs41_sequence_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
return;
}
}
dprintk("%s rpc_cred %p\n", __func__, task->tk_msg.rpc_cred);
out:
- kfree(task->tk_msg.rpc_argp);
- kfree(task->tk_msg.rpc_resp);
-
dprintk("<-- %s\n", __func__);
}
static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
{
- struct nfs_client *clp;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
struct nfs4_sequence_args *args;
struct nfs4_sequence_res *res;
- clp = (struct nfs_client *)data;
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
- if (nfs4_setup_sequence(clp, args, res, 0, task))
+ if (nfs41_setup_sequence(clp->cl_session, args, res, 0, task))
return;
rpc_call_start(task);
}
.rpc_release = nfs41_sequence_release,
};
-static int nfs41_proc_async_sequence(struct nfs_client *clp,
- struct rpc_cred *cred)
+static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
- struct nfs4_sequence_args *args;
- struct nfs4_sequence_res *res;
+ struct nfs4_sequence_data *calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
.rpc_cred = cred,
};
+ struct rpc_task_setup task_setup_data = {
+ .rpc_client = clp->cl_rpcclient,
+ .rpc_message = &msg,
+ .callback_ops = &nfs41_sequence_ops,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_SOFT,
+ };
if (!atomic_inc_not_zero(&clp->cl_count))
- return -EIO;
- args = kzalloc(sizeof(*args), GFP_NOFS);
- res = kzalloc(sizeof(*res), GFP_NOFS);
- if (!args || !res) {
- kfree(args);
- kfree(res);
+ return ERR_PTR(-EIO);
+ calldata = kmalloc(sizeof(*calldata), GFP_NOFS);
+ if (calldata == NULL) {
nfs_put_client(clp);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
- res->sr_slotid = NFS4_MAX_SLOT_TABLE;
- msg.rpc_argp = args;
- msg.rpc_resp = res;
+ calldata->res.sr_slotid = NFS4_MAX_SLOT_TABLE;
+ msg.rpc_argp = &calldata->args;
+ msg.rpc_resp = &calldata->res;
+ calldata->clp = clp;
+ task_setup_data.callback_data = calldata;
- return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_SOFT,
- &nfs41_sequence_ops, (void *)clp);
+ return rpc_run_task(&task_setup_data);
+}
+
+static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret = 0;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task))
+ ret = PTR_ERR(task);
+ else
+ rpc_put_task(task);
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
+}
+
+static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task)) {
+ ret = PTR_ERR(task);
+ goto out;
+ }
+ ret = rpc_wait_for_completion_task(task);
+ if (!ret)
+ ret = task->tk_status;
+ rpc_put_task(task);
+out:
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
}
struct nfs4_reclaim_complete_data {
struct nfs4_reclaim_complete_data *calldata = data;
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
- if (nfs4_setup_sequence(calldata->clp, &calldata->arg.seq_args,
+ if (nfs41_setup_sequence(calldata->clp->cl_session,
+ &calldata->arg.seq_args,
&calldata->res.seq_res, 0, task))
return;
rpc_call_start(task);
}
+static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case 0:
+ case -NFS4ERR_COMPLETE_ALREADY:
+ case -NFS4ERR_WRONG_CRED: /* What to do here? */
+ break;
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
+}
+
static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
{
struct nfs4_reclaim_complete_data *calldata = data;
struct nfs4_sequence_res *res = &calldata->res.seq_res;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(clp, res, task->tk_status);
- switch (task->tk_status) {
- case 0:
- case -NFS4ERR_COMPLETE_ALREADY:
- break;
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_DEADSESSION:
- /*
- * Handle the session error, but do not retry the operation, as
- * we have no way of telling whether the clientid had to be
- * reset before we got our reply. If reset, a new wave of
- * reclaim operations will follow, containing their own reclaim
- * complete. We don't want our retry to get on the way of
- * recovery by incorrectly indicating to the server that we're
- * done reclaiming state since the process had to be restarted.
- */
- _nfs4_async_handle_error(task, NULL, clp, NULL);
- break;
- default:
- if (_nfs4_async_handle_error(
- task, NULL, clp, NULL) == -EAGAIN) {
- rpc_restart_call_prepare(task);
- return;
- }
- }
+ if (!nfs41_sequence_done(task, res))
+ return;
+ if (nfs41_reclaim_complete_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
+ return;
+ }
dprintk("<-- %s\n", __func__);
}
};
#endif
-/*
- * Per minor version reboot and network partition recovery ops
- */
-
-struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[] = {
- &nfs40_reboot_recovery_ops,
-#if defined(CONFIG_NFS_V4_1)
- &nfs41_reboot_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
+ .minor_version = 0,
+ .call_sync = _nfs4_call_sync,
+ .validate_stateid = nfs4_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs40_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs40_nograce_recovery_ops,
+ .state_renewal_ops = &nfs40_state_renewal_ops,
};
-struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[] = {
- &nfs40_nograce_recovery_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_nograce_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
+ .minor_version = 1,
+ .call_sync = _nfs4_call_sync_session,
+ .validate_stateid = nfs41_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
+ .state_renewal_ops = &nfs41_state_renewal_ops,
};
+#endif
-struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
- &nfs40_state_renewal_ops,
+const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
+ [0] = &nfs_v4_0_minor_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_state_renewal_ops,
+ [1] = &nfs_v4_1_minor_ops,
#endif
};
projects / mv-sheeva.git / blobdiff