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* SUNRPC: The sunrpc server code should not be used by out-of-tree modulesTrond Myklebust2009-01-07
| | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move kfree of deferral record to common codeTom Tucker2009-01-07
| | | | | | | | | | | | | | | The rqstp structure has a pointer to a svc_deferred_req record that is allocated when requests are deferred. This record is common to all transports and can be freed in common code. Move the kfree of the rq_deferred to the common svc_xprt_release function. This also fixes a memory leak in the RDMA transport which does not kfree the dr structure in it's version of the xpo_release_rqst callback. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: Ensure the server closes sockets in a timely fashionTrond Myklebust2009-01-06
| | | | | | | | | We want to ensure that connected sockets close down the connection when we set XPT_CLOSE, so that we don't keep it hanging while cleaning up all the stuff that is keeping a reference to the socket. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* Merge branch 'master' of ↵David S. Miller2008-12-15
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e1000e/ich8lan.c
| * Add a reference to sunrpc in svc_addsockTom Tucker2008-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The svc_addsock function adds transport instances without taking a reference on the sunrpc.ko module, however, the generic transport destruction code drops a reference when a transport instance is destroyed. Add a try_module_get call to the svc_addsock function for transport instances added by this function. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Tested-by: Jeff Moyer <jmoyer@redhat.com>
* | net: replace NIPQUAD() in net/*/Harvey Harrison2008-10-31
|/ | | | | | | | Using NIPQUAD() with NIPQUAD_FMT, %d.%d.%d.%d or %u.%u.%u.%u can be replaced with %pI4 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* NLM: Remove unused argument from svc_addsock() functionChuck Lever2008-10-04
| | | | | | | | | Clean up: The svc_addsock() function no longer uses its "proto" argument, so remove it. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: Set V6ONLY socket option for RPC listener socketsChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | My plan is to use an AF_INET listener on systems that support only IPv4, and an AF_INET6 listener on systems that can support IPv6. Incoming IPv4 packets will be posted to an AF_INET6 listener with a mapped IPv4 address. Max Matveev <makc@sgi.com> says: Creating a single listener can be dangerous - if net.ipv6.bindv6only is enabled then it's possible to create another listener in v4 namespace on the same port and steal the traffic from the "unifed" listener. You need to disable V6ONLY explicitly via a sockopt to stop that. Set appropriate socket option on RPC server listener sockets to prevent this. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: Update RPC server's TCP record marker decoderChuck Lever2008-04-23
| | | | | | | | Clean up: Update the RPC server's TCP record marker decoder to match the constructs used by the RPC client's TCP socket transport. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: RPC server still uses 2.4 method for disabling TCP NagleChuck Lever2008-04-23
| | | | | | | Use the 2.6 method for disabling TCP Nagle in the kernel's RPC server. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: export svc_sock_update_bufsJeff Layton2008-04-23
| | | | | | | | | Needed since the plan is to not have a svc_create_thread helper and to have current users of that function just call kthread_run directly. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* Wrap buffers used for rpc debug printks into RPC_IFDEBUGPavel Emelyanov2008-02-21
| | | | | | | | | | | | | | | | Sorry for the noise, but here's the v3 of this compilation fix :) There are some places, which declare the char buf[...] on the stack to push it later into dprintk(). Since the dprintk sometimes (if the CONFIG_SYSCTL=n) becomes an empty do { } while (0) stub, these buffers cause gcc to produce appropriate warnings. Wrap these buffers with RPC_IFDEBUG macro, as Trond proposed, to compile them out when not needed. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* svc: Add transport hdr size for defer/revisitTom Tucker2008-02-01
| | | | | | | | | | | | | | | Some transports have a header in front of the RPC header. The current defer/revisit processing considers only the iov_len and arg_len to determine how much to back up when saving the original request to revisit. Add a field to the rqstp structure to save the size of the transport header so svc_defer can correctly compute the start of a request. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move the xprt independent code to the svc_xprt.c fileTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | | | This functionally trivial patch moves all of the transport independent functions from the svcsock.c file to the transport independent svc_xprt.c file. In addition the following formatting changes were made: - White space cleanup - Function signatures on single line - The inline directive was removed - Lines over 80 columns were reformatted - The term 'socket' was changed to 'transport' in comments - The SMP comment was moved and updated. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_check_conn_limits xprt independentTom Tucker2008-02-01
| | | | | | | | | | | The svc_check_conn_limits function only manipulates xprt fields. Change references to svc_sock->sk_xprt to svc_xprt directly. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Removing remaining references to rq_sock in rqstpTom Tucker2008-02-01
| | | | | | | | | | | This functionally empty patch removes rq_sock and unamed union from rqstp structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move create logic to common codeTom Tucker2008-02-01
| | | | | | | | | | | | | | Move the svc transport list logic into common transport creation code. Refactor this code path to make the flow of control easier to read. Move the setting and clearing of the BUSY_BIT during transport creation to common code. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_age_temp_sockets svc_age_temp_transportsTom Tucker2008-02-01
| | | | | | | | | | | This function is transport independent. Change it to use svc_xprt directly and change it's name to reflect this. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_recv transport neutralTom Tucker2008-02-01
| | | | | | | | | | | | All of the transport field and functions used by svc_recv are now transport independent. Change the svc_recv function to use the svc_xprt structure directly instead of the transport specific svc_sock structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_sock_release svc_xprt_releaseTom Tucker2008-02-01
| | | | | | | | | | | | The svc_sock_release function only touches transport independent fields. Change the function to manipulate svc_xprt directly instead of the transport dependent svc_sock structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move the sockaddr information to svc_xprtTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the transport sockaddr to the svc_xprt structure. Convenience functions are added to set and get the local and remote addresses of a transport from the transport provider as well as determine the length of a sockaddr. A transport is responsible for setting the xpt_local and xpt_remote addresses in the svc_xprt structure as part of transport creation and xpo_accept processing. This cannot be done in a generic way and in fact varies between TCP, UDP and RDMA. A set of xpo_ functions (e.g. getlocalname, getremotename) could have been added but this would have resulted in additional caching and copying of the addresses around. Note that the xpt_local address should also be set on listening endpoints; for TCP/RDMA this is done as part of endpoint creation. For connected transports like TCP and RDMA, the addresses never change and can be set once and copied into the rqstp structure for each request. For UDP, however, the local and remote addresses may change for each request. In this case, the address information is obtained from the UDP recvmsg info and copied into the rqstp structure from there. A svc_xprt_local_port function was also added that returns the local port given a transport. This is used by svc_create_xprt when returning the port associated with a newly created transport, and later when creating a generic find transport service to check if a service is already listening on a given port. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make deferral processing xprt independentTom Tucker2008-02-01
| | | | | | | | | | | | | This patch moves the transport independent sk_deferred list to the svc_xprt structure and updates the svc_deferred_req structure to keep pointers to svc_xprt's directly. The deferral processing code is also moved out of the transport dependent recvfrom functions and into the generic svc_recv path. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move the authinfo cache to svc_xprt.Tom Tucker2008-02-01
| | | | | | | | | | | | | | | | Move the authinfo cache to svc_xprt. This allows both the TCP and RDMA transports to share this logic. A flag bit is used to determine if auth information is to be cached or not. Previously, this code looked at the transport protocol. I've also changed the spin_lock/unlock logic so that a lock is not taken for transports that are not caching auth info. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Remove sk_lastrecvTom Tucker2008-02-01
| | | | | | | | | | | With the implementation of the new mark and sweep algorithm for shutting down old connections, the sk_lastrecv field is no longer needed. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move accept call to svc_xprt_received to common codeTom Tucker2008-02-01
| | | | | | | | | | | | Now that the svc_xprt_received function handles transports, the call to svc_xprt_received in the xpo_tcp_accept function can be moved to common code. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Change svc_sock_received to svc_xprt_received and export itTom Tucker2008-02-01
| | | | | | | | | | | | | | All fields touched by svc_sock_received are now transport independent. Change it to use svc_xprt directly. This function is called from transport dependent code, so export it. Update the comment to clearly state the rules for calling this function. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_send transport neutralTom Tucker2008-02-01
| | | | | | | | | | | | | Move the sk_mutex field to the transport independent svc_xprt structure. Now all the fields that svc_send touches are transport neutral. Change the svc_send function to use the transport independent svc_xprt directly instead of the transport dependent svc_sock structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make the enqueue service transport neutral and export it.Tom Tucker2008-02-01
| | | | | | | | | | | | | | | | The svc_sock_enqueue function is now transport independent since all of the fields it touches have been moved to the transport independent svc_xprt structure. Change the function to use the svc_xprt structure directly instead of the transport specific svc_sock structure. Transport specific data-ready handlers need to call this function, so export it. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move sk_reserved to svc_xprtTom Tucker2008-02-01
| | | | | | | | | | | This functionally trivial patch moves the sk_reserved field to the transport independent svc_xprt structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make close transport independentTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | | | Move sk_list and sk_ready to svc_xprt. This involves close because these lists are walked by svcs when closing all their transports. So I combined the moving of these lists to svc_xprt with making close transport independent. The svc_force_sock_close has been changed to svc_close_all and takes a list as an argument. This removes some svc internals knowledge from the svcs. This code races with module removal and transport addition. Thanks to Simon Holm Thøgersen for a compile fix. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Simon Holm Thøgersen <odie@cs.aau.dk>
* svc: Move sk_server and sk_pool to svc_xprtTom Tucker2008-02-01
| | | | | | | | | | | | This is another incremental change that moves transport independent fields from svc_sock to the svc_xprt structure. The changes should be functionally null. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move sk_flags to the svc_xprt structureTom Tucker2008-02-01
| | | | | | | | | | | This functionally trivial change moves the transport independent sk_flags field to the transport independent svc_xprt structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Change sk_inuse to a krefTom Tucker2008-02-01
| | | | | | | | | | | | Change the atomic_t reference count to a kref and move it to the transport indepenent svc_xprt structure. Change the reference count wrapper names to be generic. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Change services to use new svc_create_xprt serviceTom Tucker2008-02-01
| | | | | | | | | | Modify the various kernel RPC svcs to use the svc_create_xprt service. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add a generic transport svc_create_xprt functionTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | The svc_create_xprt function is a transport independent version of the svc_makesock function. Since transport instance creation contains transport dependent and independent components, add an xpo_create transport function. The transport implementation of this function allocates the memory for the endpoint, implements the transport dependent initialization logic, and calls svc_xprt_init to initialize the transport independent field (svc_xprt) in it's data structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move connection limit checking to its own functionTom Tucker2008-02-01
| | | | | | | | | | | | Move the code that poaches connections when the connection limit is hit to a subroutine to make the accept logic path easier to follow. Since this is in the new connection path, it should not be a performance issue. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Remove unnecessary call to svc_sock_enqueueTom Tucker2008-02-01
| | | | | | | | | | | | | The svc_tcp_accept function calls svc_sock_enqueue after setting the SK_CONN bit. This doesn't actually do anything because the SK_BUSY bit is still set. The call is unnecessary anyway because the generic code in svc_recv calls svc_sock_received after calling the accept function. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add xpo_accept transport functionTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | Previously, the accept logic looked into the socket state to determine whether to call accept or recv when data-ready was indicated on an endpoint. Since some transports don't use sockets, this logic now uses a flag bit (SK_LISTENER) to identify listening endpoints. A transport function (xpo_accept) allows each transport to define its own accept processing. A transport's initialization logic is reponsible for setting the SK_LISTENER bit. I didn't see any way to do this in transport independent logic since the passive side of a UDP connection doesn't listen and always recv's. In the svc_recv function, if the SK_LISTENER bit is set, the transport xpo_accept function is called to handle accept processing. Note that all functions are defined even if they don't make sense for a given transport. For example, accept doesn't mean anything for UDP. The function is defined anyway and bug checks if called. The UDP transport should never set the SK_LISTENER bit. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move close processing to a single placeTom Tucker2008-02-01
| | | | | | | | | | | | Close handling was duplicated in the UDP and TCP recvfrom methods. This code has been moved to the transport independent svc_recv function. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add a transport function that checks for write spaceTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | In order to avoid blocking a service thread, the receive side checks to see if there is sufficient write space to reply to the request. Each transport has a different mechanism for determining if there is enough write space to reply. The code that checked for write space was coupled with code that checked for CLOSE and CONN. These checks have been broken out into separate statements to make the code easier to read. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add xpo_prep_reply_hdrTom Tucker2008-02-01
| | | | | | | | | | | | Some transports add fields to the RPC header for replies, e.g. the TCP record length. This function is called when preparing the reply header to allow each transport to add whatever fields it requires. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add per-transport delete functionsTom Tucker2008-02-01
| | | | | | | | | | | | | | | Add transport specific xpo_detach and xpo_free functions. The xpo_detach function causes the transport to stop delivering data-ready events and enqueing the transport for I/O. The xpo_free function frees all resources associated with the particular transport instance. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add transport specific xpo_release functionTom Tucker2008-02-01
| | | | | | | | | | | | The svc_sock_release function releases pages allocated to a thread. For UDP this frees the receive skb. For RDMA it will post a receive WR and bump the client credit count. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Move sk_sendto and sk_recvfrom to svc_xprt_classTom Tucker2008-02-01
| | | | | | | | | | | | The sk_sendto and sk_recvfrom are function pointers that allow svc_sock to be used for both UDP and TCP. Move these function pointers to the svc_xprt_ops structure. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Add a max payload value to the transportTom Tucker2008-02-01
| | | | | | | | | | | | The svc_max_payload function currently looks at the socket type to determine the max payload. Add a max payload value to svc_xprt_class so it can be returned directly. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svc: Make svc_sock the tcp/udp transportTom Tucker2008-02-01
| | | | | | | | | | | | | | Make TCP and UDP svc_sock transports, and register them with the svc transport core. A transport type (svc_sock) has an svc_xprt as its first member, and calls svc_xprt_init to initialize this field. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* [NET] Cleanup: Use sock_owned_by_user() macroJohn Heffner2007-10-10
| | | | | | | | Changes asserts in sunrpc to use sock_owned_by_user() macro instead of referencing sock_lock.owner directly. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: DIV_ROUND_UP cleanup (part two)Ilpo Järvinen2007-10-10
| | | | | | | | | | | Hopefully captured all single statement cases under net/. I'm not too sure if there is some policy about #includes that are "guaranteed" (ie., in the current tree) to be available through some other #included header, so I just added linux/kernel.h to each changed file that didn't #include it previously. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* rpc: fix garbage in printk in svc_tcp_accept()Wolfgang Walter2007-09-20
| | | | | | | | | | | | | | | | | | | | | we upgraded the kernel of a nfs-server from 2.6.17.11 to 2.6.22.6. Since then we get the message lockd: too many open TCP sockets, consider increasing the number of nfsd threads lockd: last TCP connect from ^\\236^\É^D These random characters in the second line are caused by a bug in svc_tcp_accept. (Note: there are two previous __svc_print_addr(sin, buf, sizeof(buf)) calls in this function, either of which would initialize buf correctly; but both are inside "if"'s and are not necessarily executed. This is less obvious in the second case, which is inside a dprintk(), which is a macro which expands to an if statement.) Signed-off-by: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Correctly close old nfsd/lockd sockets.Neil Brown2007-09-14
| | | | | | | | | | | | | | | | Commit aaf68cfbf2241d24d46583423f6bff5c47e088b3 added a bias to sk_inuse, so this test for an unused socket now fails. So no sockets get closed because they are old (they might get closed if the client closed them). This bug has existed since 2.6.21-rc1. Thanks to Wolfgang Walter for finding and reporting the bug. Cc: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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