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* Merge branch 'task_killable' of ↵Linus Torvalds2008-02-014-66/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc * 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: (22 commits) Remove commented-out code copied from NFS NFS: Switch from intr mount option to TASK_KILLABLE Add wait_for_completion_killable Add wait_event_killable Add schedule_timeout_killable Use mutex_lock_killable in vfs_readdir Add mutex_lock_killable Use lock_page_killable Add lock_page_killable Add fatal_signal_pending Add TASK_WAKEKILL exit: Use task_is_* signal: Use task_is_* sched: Use task_contributes_to_load, TASK_ALL and TASK_NORMAL ptrace: Use task_is_* power: Use task_is_* wait: Use TASK_NORMAL proc/base.c: Use task_is_* proc/array.c: Use TASK_REPORT perfmon: Use task_is_* ... Fixed up conflicts in NFS/sunrpc manually..
| * NFS: Switch from intr mount option to TASK_KILLABLEMatthew Wilcox2007-12-064-58/+9
| | | | | | | | | | | | | | | | | | By using the TASK_KILLABLE infrastructure, we can get rid of the 'intr' mount option. We have to use _killable everywhere instead of _interruptible as we get rid of rpc_clnt_sigmask/sigunmask. Signed-off-by: Liam R. Howlett <howlett@gmail.com> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
* | x86: change NR_CPUS arrays in numa_64travis@sgi.com2008-01-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Change the following static arrays sized by NR_CPUS to per_cpu data variables: char cpu_to_node_map[NR_CPUS]; Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | SUNRPC: Don't bother changing the sigmask for asynchronous RPC callsTrond Myklebust2008-01-301-3/+6
| | | | | | | | | | | | | | The caller will never sleep in rpc_execute, so don't bother setting the sigmask. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: rpcb_getport_sync() passes incorrect address size to rpc_create()Chuck Lever2008-01-301-1/+1
| | | | | | | | | | | | | | | | The variable "sin" is a pointer, so sizeof(sin) is the size of a pointer, not the size of thing that sin points to. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Clean up block comment preceding rpcb_getport_sync()Chuck Lever2008-01-301-1/+4
| | | | | | | | | | Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Use appropriate argument types in rpcb clientChuck Lever2008-01-301-2/+1
| | | | | | | | | | | | | | | | | | Clean up: Follow recommendations of Chapter 5 of Documentation/CodingStyle and use "u32" instead of "__u32" for types in definitions that are not shared with user space. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: rpcb_getport_sync() should use built-in hostname generatorChuck Lever2008-01-301-3/+1
| | | | | | | | | | | | | | | | | | rpc_create() can already fill in the hostname with a string representation of the server's IP address, so remove redundant logic in in rpcb_getport_sync() that does that. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Clean up functions that free address_strings arrayChuck Lever2008-01-302-12/+20
| | | | | | | | | | | | | | | | | | Clean up: document the rule (kfree) and the exceptions (RPC_DISPLAY_PROTO and RPC_DISPLAY_NETID) when freeing the objects in a transport's address_strings array. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix up constant string declarations in struct rpcbind_argsTrond Myklebust2008-01-301-7/+5
| | | | | | | | | | | | ...and eliminate an unnecessary cast. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: fewer conditionals in the format_ip_address routinesChuck Lever2008-01-303-36/+25
| | | | | | | | | | | | | | | | | | | | | | Clean up: have the set up routines explicitly pass the strings to be used for the transport name and NETID. This removes a number of conditionals and dependencies on rpc_xprt.prot, which is overloaded. Tighten up type checking on the address_strings array while we're at it. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix use of copy_to_user() in gss_pipe_upcall()Chuck Lever2008-01-301-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | The gss_pipe_upcall() function expects the copy_to_user() function to return a negative error value if the call fails, but copy_to_user() returns an unsigned long number of bytes that couldn't be copied. Can rpc_pipefs actually retry a partially completed upcall read? If not, then gss_pipe_upcall() should punt any partial read, just like the upcall logic in net/sunrpc/cache.c. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Add support for per-client timeout valuesTrond Myklebust2008-01-304-18/+18
| | | | | | | | | | | | | | | | In order to be able to support setting the timeo and retrans parameters on a per-mountpoint basis, we move the rpc_timeout structure into the rpc_clnt. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Clean up the transport timeout initialisationTrond Myklebust2008-01-303-26/+27
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: cleanup for rpc_new_client()Trond Myklebust2008-01-301-10/+14
| | | | | | | | | | | | There is no reason why we shouldn't just pass the rpc_create_args. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Move universal address definitions to global headerChuck Lever2008-01-301-42/+3
| | | | | | | | | | | | | | | | | | | | Universal addresses are defined in RFC 1833 and clarified in RFC 3530. We need to use them in several places in the NFS and RPC clients, so move the relevant definition and block comment to an appropriate global include file. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: RPC version numbers are u32Chuck Lever2008-01-301-2/+2
| | | | | | | | | | | | | | Clean up: use correct type for RPC version numbers in rpcbind client. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix socket address handling in rpcb_clntChuck Lever2008-01-301-8/+12
| | | | | | | | | | | | | | Make sure rpcb_clnt passes the correct address length to rpc_create(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: rpc_create() default hostname should support AF_INET6 addressesChuck Lever2008-01-301-5/+27
| | | | | | | | | | | | | | | | | | | | | | | | If the ULP doesn't pass a hostname string to rpc_create(), it manufactures one based on the passed-in address. Be smart enough to handle an AF_INET6 address properly in this case. Move the default servername logic before the xprt_create_transport() call to simplify error handling in rpc_create(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Remove an unneeded implicit type cast when calling rpc_depopulate()Chuck Lever2008-01-301-2/+2
| | | | | | | | | | | | | | | | The two arguments of rpc_depopulate() that pass in inode numbers should use the same type as inode->i_ino: unsigned long. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: temp var should match return type of xdr_skb_read_actorChuck Lever2008-01-301-1/+1
| | | | | | | | | | | | | | | | The return type of xdr_skb_read_actor functions is size_t. This fixes a nit I unwittingly overlooked in commit dd456471. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Check a return resultChuck Lever2008-01-301-3/+5
| | | | | | | | | | | | | | | | Minor: Replace an empty if statement with a debugging dprintk. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Thomas Talpey <Thomas.Talpey@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix an unnecessary implicit type cast in rpcrdma_count_chunks()Chuck Lever2008-01-301-1/+1
| | | | | | | | | | | | | | | | | | | | Nit: rl_nchunks is an unsigned integer, so pass it into rpcrdma_count_chunks() via an unsigned integer argument. This eliminates a harmless mixed sign comparison in rpcrdma_count_chunks() Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Thomas Talpey <Thomas.Talpey@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Prevent mixed sign comparisons in rpcrdma_convert_iovs()Chuck Lever2008-01-301-3/+3
| | | | | | | | | | | | | | | | | | | | Keep the type of the buffer position the same during iovec conversion to reduce the likelihood of unexpected results from comparisons and length computations. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Thomas Talpey <Thomas.Talpey@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Cleanup to remove the last users of the RPC_WAITQ declarationTrond Myklebust2008-01-301-1/+6
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Unexport rpc_init_task() and rpc_execute()Trond Myklebust2008-01-301-3/+1
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: allow the caller of rpc_run_task to preallocate the struct rpc_taskTrond Myklebust2008-01-301-6/+10
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Remove the now unused function rpc_call_setup()Trond Myklebust2008-01-301-18/+0
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS/SUNRPC: Convert all users of rpc_call_setup()Trond Myklebust2008-01-301-21/+19
| | | | | | | | | | | | | | Replace use of rpc_call_setup() with rpc_init_task(), and in cases where we need to initialise task->tk_action, with rpc_call_start(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Allow rpc_init_task() to initialise the rpc_task->tk_msgTrond Myklebust2008-01-302-7/+15
| | | | | | | | | | | | In preparation for the removal of rpc_call_setup(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Add a helper rpc_call_start() that initialises task->tk_actionTrond Myklebust2008-01-301-0/+7
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Mask signals across the call to rpc_call_setup() in rpc_run_taskTrond Myklebust2008-01-302-6/+10
| | | | | | | | | | | | To ensure that the RPCSEC_GSS upcall is performed with the correct sigmask. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Clean up the initialisation of priority queue scheduling info.Trond Myklebust2008-01-301-15/+15
| | | | | | | | | | | | | | | | | | | | We want the default scheduling priority (priority == 0) to remain RPC_PRIORITY_NORMAL. Also ensure that the priority wait queue scheduling is per process id instead of sometimes being per thread, and sometimes being per inode. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Clean up rpc_run_taskTrond Myklebust2008-01-302-28/+16
| | | | | | | | | | | | | | Make it use the new task initialiser structure instead of acting as a wrapper. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Cleanup of rpc_task initialisationTrond Myklebust2008-01-302-28/+50
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Restrict sunrpc client exportsTrond Myklebust2008-01-306-44/+44
| | | | | | | | | | | | | | | | The sunrpc client exports are not meant to be part of any official kernel API: they can change at the drop of a hat. Mark them as internal functions using EXPORT_SYMBOL_GPL. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Move exported declarations to the function declarationsTrond Myklebust2008-01-309-67/+55
| | | | | | | | | | | | Do this for all RPC client related functions and XDR functions. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | sunrpc: document the rpc_pipefs kernel apiJ. Bruce Fields2008-01-301-1/+51
| | | | | | | | | | | | | | Add kerneldoc comments for the rpc_pipefs.c functions that are exported. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Reconnect immediately whenever the server isn't refusing it.Trond Myklebust2008-01-301-1/+9
| | | | | | | | | | | | | | If we've disconnected from the server, rather than the other way round, then it makes little sense to wait 3 seconds before reconnecting. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Rename xprt_disconnect()Trond Myklebust2008-01-303-7/+7
| | | | | | | | | | | | | | | | xprt_disconnect() should really only be called when the transport shutdown is completed, and it is time to wake up any pending tasks. Rename it to xprt_disconnect_done() in order to reflect the semantical change. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Make call_status()/call_decode() call xprt_force_disconnect()Trond Myklebust2008-01-302-3/+3
| | | | | | | | | | | | | | | | | | Move the calls to xprt_disconnect() over to xprt_force_disconnect() in order to enable the transport layer to manage the state of the XPRT_CONNECTED flag. Ditto in xs_tcp_read_fraghdr(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: xprt_autoclose() should not call xprt_disconnect()Trond Myklebust2008-01-302-3/+1
| | | | | | | | | | | | | | | | | | | | | | The transport layer should do that itself whenever appropriate. Note that the RDMA transport already assumes that it needs to call xprt_disconnect in xprt_rdma_close(). For TCP sockets, we want to call xprt_disconnect() only after the connection has been closed by both ends. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Use shutdown() instead of close() when disconnecting a TCP socketTrond Myklebust2008-01-301-7/+34
| | | | | | | | | | | | | | | | | | | | By using shutdown() rather than close() we allow the RPC client to wait for the TCP close handshake to complete before we start trying to reconnect using the same port. We use shutdown(SHUT_WR) only instead of shutting down both directions, however we wait until the server has closed the connection on its side. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: TCP clear XPRT_CLOSE_WAIT when the socket is closed for writesTrond Myklebust2008-01-301-0/+2
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Allow the client to detect if the TCP connection is closedTrond Myklebust2008-01-301-3/+21
| | | | | | | | | | | | | | | | Add an xprt->state bit to enable the TCP ->state_change() method to signal whether or not the TCP connection is in the process of closing down. This will to be used by the reconnection logic in a separate patch. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix TCP rebinding logicTrond Myklebust2008-01-301-21/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the TCP rebinding logic assumes that if we're not using a reserved port, then we don't need to reconnect on the same port if a disconnection event occurs. This breaks most RPC duplicate reply cache implementations. Also take into account the fact that xprt_min_resvport and xprt_max_resvport may change while we're reconnecting, since the user may change them at any time via the sysctls. Ensure that we check the port boundaries every time we loop in xs_bind4/xs_bind6. Also ensure that if the boundaries change, we only scan the ports a maximum of 2 times. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: Fix a race in xs_tcp_state_change()Trond Myklebust2008-01-302-4/+21
| | | | | | | | | | | | | | When scheduling the autoclose RPC call, we want to ensure that we don't race against the test_bit() call in xprt_clear_locked(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | [NET]: Add some acquires/releases sparse annotations.Eric Dumazet2008-01-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __acquires() and __releases() annotations to suppress some sparse warnings. example of warnings : net/ipv4/udp.c:1555:14: warning: context imbalance in 'udp_seq_start' - wrong count at exit net/ipv4/udp.c:1571:13: warning: context imbalance in 'udp_seq_stop' - unexpected unlock Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [SUNRPC]: Use htonl() where appropriate.YOSHIFUJI Hideaki2008-01-281-3/+3
| | | | | | | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [UDP]: Restore missing inDatagrams incrementsHerbert Xu2008-01-281-1/+5
| | | | | | | | | | | | | | | | | | | | | | The previous move of the the UDP inDatagrams counter caused the counting of encapsulated packets, SUNRPC data (as opposed to call) packets and RXRPC packets to go missing. This patch restores all of these. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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