#ifdef NFS_DEBUG
#define NFSDBG_FACILITY NFSDBG_CALLBACK
#endif
-
-__be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res)
+
+__be32 nfs4_callback_getattr(struct cb_getattrargs *args,
+ struct cb_getattrres *res,
+ struct cb_process_state *cps)
{
- struct nfs_client *clp;
struct nfs_delegation *delegation;
struct nfs_inode *nfsi;
struct inode *inode;
+ res->status = htonl(NFS4ERR_OP_NOT_IN_SESSION);
+ if (!cps->clp) /* Always set for v4.0. Set in cb_sequence for v4.1 */
+ goto out;
+
res->bitmap[0] = res->bitmap[1] = 0;
res->status = htonl(NFS4ERR_BADHANDLE);
- clp = nfs_find_client(args->addr, 4);
- if (clp == NULL)
- goto out;
dprintk("NFS: GETATTR callback request from %s\n",
- rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
+ rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
- inode = nfs_delegation_find_inode(clp, &args->fh);
+ inode = nfs_delegation_find_inode(cps->clp, &args->fh);
if (inode == NULL)
- goto out_putclient;
+ goto out;
nfsi = NFS_I(inode);
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
out_iput:
rcu_read_unlock();
iput(inode);
-out_putclient:
- nfs_put_client(clp);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res->status));
return res->status;
}
-__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
+__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+ struct cb_process_state *cps)
{
- struct nfs_client *clp;
struct inode *inode;
__be32 res;
- res = htonl(NFS4ERR_BADHANDLE);
- clp = nfs_find_client(args->addr, 4);
- if (clp == NULL)
+ res = htonl(NFS4ERR_OP_NOT_IN_SESSION);
+ if (!cps->clp) /* Always set for v4.0. Set in cb_sequence for v4.1 */
goto out;
dprintk("NFS: RECALL callback request from %s\n",
- rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
-
- do {
- struct nfs_client *prev = clp;
-
- inode = nfs_delegation_find_inode(clp, &args->fh);
- if (inode != NULL) {
- /* Set up a helper thread to actually return the delegation */
- switch (nfs_async_inode_return_delegation(inode, &args->stateid)) {
- case 0:
- res = 0;
- break;
- case -ENOENT:
- if (res != 0)
- res = htonl(NFS4ERR_BAD_STATEID);
- break;
- default:
- res = htonl(NFS4ERR_RESOURCE);
- }
- iput(inode);
- }
- clp = nfs_find_client_next(prev);
- nfs_put_client(prev);
- } while (clp != NULL);
+ rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
+
+ res = htonl(NFS4ERR_BADHANDLE);
+ inode = nfs_delegation_find_inode(cps->clp, &args->fh);
+ if (inode == NULL)
+ goto out;
+ /* Set up a helper thread to actually return the delegation */
+ switch (nfs_async_inode_return_delegation(inode, &args->stateid)) {
+ case 0:
+ res = 0;
+ break;
+ case -ENOENT:
+ if (res != 0)
+ res = htonl(NFS4ERR_BAD_STATEID);
+ break;
+ default:
+ res = htonl(NFS4ERR_RESOURCE);
+ }
+ iput(inode);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res));
return res;
return htonl(NFS4ERR_SEQ_MISORDERED);
}
-/*
- * Returns a pointer to a held 'struct nfs_client' that matches the server's
- * address, major version number, and session ID. It is the caller's
- * responsibility to release the returned reference.
- *
- * Returns NULL if there are no connections with sessions, or if no session
- * matches the one of interest.
- */
- static struct nfs_client *find_client_with_session(
- const struct sockaddr *addr, u32 nfsversion,
- struct nfs4_sessionid *sessionid)
-{
- struct nfs_client *clp;
-
- clp = nfs_find_client(addr, 4);
- if (clp == NULL)
- return NULL;
-
- do {
- struct nfs_client *prev = clp;
-
- if (clp->cl_session != NULL) {
- if (memcmp(clp->cl_session->sess_id.data,
- sessionid->data,
- NFS4_MAX_SESSIONID_LEN) == 0) {
- /* Returns a held reference to clp */
- return clp;
- }
- }
- clp = nfs_find_client_next(prev);
- nfs_put_client(prev);
- } while (clp != NULL);
-
- return NULL;
-}
-
/*
* For each referring call triple, check the session's slot table for
* a match. If the slot is in use and the sequence numbers match, the
}
__be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
- struct cb_sequenceres *res)
+ struct cb_sequenceres *res,
+ struct cb_process_state *cps)
{
struct nfs_client *clp;
int i;
__be32 status;
+ cps->clp = NULL;
+
status = htonl(NFS4ERR_BADSESSION);
- clp = find_client_with_session(args->csa_addr, 4, &args->csa_sessionid);
+ /* Incoming session must match the callback session */
+ if (memcmp(&args->csa_sessionid, cps->svc_sid, NFS4_MAX_SESSIONID_LEN))
+ goto out;
+
+ clp = nfs4_find_client_sessionid(args->csa_addr,
+ &args->csa_sessionid, 1);
if (clp == NULL)
goto out;
status = validate_seqid(&clp->cl_session->bc_slot_table, args);
if (status)
- goto out_putclient;
+ goto out;
/*
* Check for pending referring calls. If a match is found, a
*/
if (referring_call_exists(clp, args->csa_nrclists, args->csa_rclists)) {
status = htonl(NFS4ERR_DELAY);
- goto out_putclient;
+ goto out;
}
memcpy(&res->csr_sessionid, &args->csa_sessionid,
res->csr_slotid = args->csa_slotid;
res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+ cps->clp = clp; /* put in nfs4_callback_compound */
-out_putclient:
- nfs_put_client(clp);
out:
for (i = 0; i < args->csa_nrclists; i++)
kfree(args->csa_rclists[i].rcl_refcalls);
kfree(args->csa_rclists);
- if (status == htonl(NFS4ERR_RETRY_UNCACHED_REP))
- res->csr_status = 0;
- else
+ if (status == htonl(NFS4ERR_RETRY_UNCACHED_REP)) {
+ cps->drc_status = status;
+ status = 0;
+ } else
res->csr_status = status;
+
dprintk("%s: exit with status = %d res->csr_status %d\n", __func__,
ntohl(status), ntohl(res->csr_status));
return status;
}
-__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy)
+__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
+ struct cb_process_state *cps)
{
- struct nfs_client *clp;
__be32 status;
fmode_t flags = 0;
status = htonl(NFS4ERR_OP_NOT_IN_SESSION);
- clp = nfs_find_client(args->craa_addr, 4);
- if (clp == NULL)
+ if (!cps->clp) /* set in cb_sequence */
goto out;
dprintk("NFS: RECALL_ANY callback request from %s\n",
- rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
+ rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
if (test_bit(RCA4_TYPE_MASK_RDATA_DLG, (const unsigned long *)
&args->craa_type_mask))
flags |= FMODE_WRITE;
if (flags)
- nfs_expire_all_delegation_types(clp, flags);
+ nfs_expire_all_delegation_types(cps->clp, flags);
status = htonl(NFS4_OK);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
}
/* Reduce the fore channel's max_slots to the target value */
-__be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy)
+__be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy,
+ struct cb_process_state *cps)
{
- struct nfs_client *clp;
struct nfs4_slot_table *fc_tbl;
__be32 status;
status = htonl(NFS4ERR_OP_NOT_IN_SESSION);
- clp = nfs_find_client(args->crsa_addr, 4);
- if (clp == NULL)
+ if (!cps->clp) /* set in cb_sequence */
goto out;
dprintk("NFS: CB_RECALL_SLOT request from %s target max slots %d\n",
- rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR),
+ rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR),
args->crsa_target_max_slots);
- fc_tbl = &clp->cl_session->fc_slot_table;
+ fc_tbl = &cps->clp->cl_session->fc_slot_table;
status = htonl(NFS4ERR_BAD_HIGH_SLOT);
if (args->crsa_target_max_slots > fc_tbl->max_slots ||
args->crsa_target_max_slots < 1)
- goto out_putclient;
+ goto out;
status = htonl(NFS4_OK);
if (args->crsa_target_max_slots == fc_tbl->max_slots)
- goto out_putclient;
+ goto out;
fc_tbl->target_max_slots = args->crsa_target_max_slots;
- nfs41_handle_recall_slot(clp);
-out_putclient:
- nfs_put_client(clp); /* balance nfs_find_client */
+ nfs41_handle_recall_slot(cps->clp);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
return status;
git.openpandora.org / pandora-kernel.git / blobdiff