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* [NET]: sem2mutex part 2Ingo Molnar2006-03-21
| | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] sem2mutex: net/Arjan van de Ven2006-03-21
| | | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] SUNRPC: Fix potential deadlock in RPC codeTrond Myklebust2006-03-14
| | | | | | | | | | | | In rpc_wake_up() and rpc_wake_up_status(), it is possible for the call to __rpc_wake_up_task() to fail if another thread happens to be calling rpc_wake_up_task() on the same rpc_task. Problem noticed by Bruno Faccini. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SUNRPC: fix a NULL pointer dereference in net/sunrpc/clnt.cAdrian Bunk2006-03-14
| | | | | | | | | | The Coverity checker spotted this possible NULL pointer dereference in rpc_new_client(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* SUNRPC: Move upcall out of auth->au_ops->crcreate()Trond Myklebust2006-02-01
| | | | | | | | | This fixes a bug whereby if two processes try to look up the same auth_gss credential, they may end up creating two creds, and triggering two upcalls because the upcall is performed before the credential is added to the credcache. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Remove the deprecated function lookup_hash() from rpc_pipefs codeTrond Myklebust2006-02-01
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: rpc_timeout_upcall_queue should not sleepTrond Myklebust2006-02-01
| | | | | | | | The function rpc_timeout_upcall_queue runs from a workqueue, and hence sleeping is not recommended. Convert the protection of the upcall queue from being mutex-based to being spinlock-based. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Fix a lock recursion in the auth_gss downcallTrond Myklebust2006-02-01
| | | | | | | | | | | | When we look up a new cred in the auth_gss downcall so that we can stuff the credcache, we do not want that lookup to queue up an upcall in order to initialise it. To do an upcall here not only redundant, but since we are already holding the inode->i_mutex, it will trigger a lock recursion. This patch allows rpcauth cache searches to indicate that they can cope with uninitialised credentials. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* [PATCH] DocBook: fix some kernel-doc comments in net/sunrpcMartin Waitz2006-02-01
| | | | | | | | Fix the syntax of some kernel-doc comments Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] svcrpc: gss: svc context creation error handlingJ. Bruce Fields2006-01-18
| | | | | | | | | | Allow mechanisms to return more varied errors on the context creation downcall. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] svcrpc: gss: server context init failure handlingKevin Coffman2006-01-18
| | | | | | | | | | | | | | | | | We require the server's gssd to create a completed context before asking the kernel to send a final context init reply. However, gssd could be buggy, or under some bizarre circumstances we might purge the context from our cache before we get the chance to use it here. Handle this case by returning GSS_S_NO_CONTEXT to the client. Also move the relevant code here to a separate function rather than nesting excessively. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] svcrpc: gss: handle the GSS_S_CONTINUEAndy Adamson2006-01-18
| | | | | | | | | | | | Kerberos context initiation is handled in a single round trip, but other mechanisms (including spkm3) may require more, so we need to handle the GSS_S_CONTINUE case in svcauth_gss_accept. Send a null verifier. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] svcrpc: save and restore the daddr field when request deferredJ. Bruce Fields2006-01-18
| | | | | | | | | | | | The server code currently keeps track of the destination address on every request so that it can reply using the same address. However we forget to do that in the case of a deferred request. Remedy this oversight. >From folks at PolyServe. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Remove more unneeded typecasts on *malloc()Kris Katterjohn2006-01-11
| | | | | | | | | This removes more unneeded casts on the return value for kmalloc(), sock_kmalloc(), and vmalloc(). Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove unneeded kmalloc() return value castsJesper Juhl2006-01-10
| | | | | | | | Get rid of needless casting of kmalloc() return value in net/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Fix rpc shutdown event condition bugLinus Torvalds2006-01-10
| | | | | | | | We want to wait for the cl_users to go down to zero, not for it to stay positive. Quoth Trond (who wasn't even the author, but acked the wrong version): "Argh! I need to increase my daily caffeine dosages." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfs: sleep_on() removalIngo Molnar2006-01-10
| | | | | | | | | Convert sleep_on() to wait_event_timeout(). Probably safe with the BKL but could be racy once BKL use in NFS-client is gone. Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/mingo/mutex-2.6Linus Torvalds2006-01-09
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| * [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_semJes Sorensen2006-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts the inode semaphore to a mutex. I have tested it on XFS and compiled as much as one can consider on an ia64. Anyway your luck with it might be different. Modified-by: Ingo Molnar <mingo@elte.hu> (finished the conversion) Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | [NET]: Change some "if (x) BUG();" to "BUG_ON(x);"Kris Katterjohn2006-01-09
|/ | | | | | | This changes some simple "if (x) BUG();" statements to "BUG_ON(x);" Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] shrink dentry structEric Dumazet2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some long time ago, dentry struct was carefully tuned so that on 32 bits UP, sizeof(struct dentry) was exactly 128, ie a power of 2, and a multiple of memory cache lines. Then RCU was added and dentry struct enlarged by two pointers, with nice results for SMP, but not so good on UP, because breaking the above tuning (128 + 8 = 136 bytes) This patch reverts this unwanted side effect, by using an union (d_u), where d_rcu and d_child are placed so that these two fields can share their memory needs. At the time d_free() is called (and d_rcu is really used), d_child is known to be empty and not touched by the dentry freeing. Lockless lookups only access d_name, d_parent, d_lock, d_op, d_flags (so the previous content of d_child is not needed if said dentry was unhashed but still accessed by a CPU because of RCU constraints) As dentry cache easily contains millions of entries, a size reduction is worth the extra complexity of the ugly C union. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: Maneesh Soni <maneesh@in.ibm.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Ian Kent <raven@themaw.net> Cc: Paul Jackson <pj@sgi.com> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@epoch.ncsc.mil> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* SUNRPC: Make krb5 report unsupported encryption typesJ. Bruce Fields2006-01-06
| | | | | | | | | Print messages when an unsupported encrytion algorthm is requested or there is an error locating a supported algorthm. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Make spkm3 report unsupported encryption typesJ. Bruce Fields2006-01-06
| | | | | | | | | Print messages when an unsupported encrytion algorthm is requested or there is an error locating a supported algorthm. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Update the spkm3 code to use the make_checksum interfaceJ. Bruce Fields2006-01-06
| | | | | | | | Also update the tokenlen calculations to accomodate g_token_size(). Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Clean up xprt_destroy()Trond Myklebust2006-01-06
| | | | | | | We ought never to be calling xprt_destroy() if there are still active rpc_tasks. Optimise away the broken code that attempts to "fix" that case. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Ensure client closes the socket when server initiates a closeTrond Myklebust2006-01-06
| | | | | | | | | | | | If the server decides to close the RPC socket, we currently don't actually respond until either another RPC call is scheduled, or until xprt_autoclose() gets called by the socket expiry timer (which may be up to 5 minutes later). This patch ensures that xprt_autoclose() is called much sooner if the server closes the socket. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: get rid of cl_chattyChuck Lever2006-01-06
| | | | | | | | | | | | Clean up: Every ULP that uses the in-kernel RPC client, except the NLM client, sets cl_chatty. There's no reason why NLM shouldn't set it, so just get rid of cl_chatty and always be verbose. Test-plan: Compile with CONFIG_NFS enabled. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: transport switch API for setting port numberChuck Lever2006-01-06
| | | | | | | | | | | | | | | At some point, transport endpoint addresses will no longer be IPv4. To hide the structure of the rpc_xprt's address field from ULPs and port mappers, add an API for setting the port number during an RPC bind operation. Test-plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked. Probably need to rig a server where certain services aren't running, or that returns an error for some typical operation. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: new interface to force an RPC rebindChuck Lever2006-01-06
| | | | | | | | | | | | | | | We'd like to hide fields in rpc_xprt and rpc_clnt from upper layer protocols. Start by creating an API to force RPC rebind, replacing logic that simply sets cl_port to zero. Test-plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked. Probably need to rig a server where certain services aren't running, or that returns an error for some typical operation. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: switchable buffer allocationChuck Lever2006-01-06
| | | | | | | | | | | | | | | | | | | | Add RPC client transport switch support for replacing buffer management on a per-transport basis. In the current IPv4 socket transport implementation, RPC buffers are allocated as needed for each RPC message that is sent. Some transport implementations may choose to use pre-allocated buffers for encoding, sending, receiving, and unmarshalling RPC messages, however. For transports capable of direct data placement, the buffers can be carved out of a pre-registered area of memory rather than from a slab cache. Test-plan: Millions of fsx operations. Performance characterization with "sio" and "iozone". Use oprofile and other tools to look for significant regression in CPU utilization. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: net/sunrpc/xdr.c: remove xdr_decode_string()Adrian Bunk2006-01-06
| | | | | | | | | This patch removes ths unused function xdr_decode_string(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Neil Brown <neilb@suse.de> Acked-by: Charles Lever <Charles.Lever@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Fix a potential race in rpc_pipefs.Trond Myklebust2006-01-06
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Ensure that SIGKILL will always terminate a synchronous RPC call.Trond Myklebust2006-01-06
| | | | | | | ...and make sure that the "intr" flag also enables SIGHUP and SIGTERM to interrupt RPC calls too (as per the Solaris implementation). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: rpc_execute should not return task->tk_status;Trond Myklebust2006-01-06
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Get rid of some unused exportsTrond Myklebust2006-01-06
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: stateful NFSv4 RPC call interfaceTrond Myklebust2006-01-06
| | | | | | | | | | | | | | The NFSv4 model requires us to complete all RPC calls that might establish state on the server whether or not the user wants to interrupt it. We may also need to schedule new work (including new RPC calls) in order to cancel the new state. The asynchronous RPC model will allow us to ensure that RPC calls always complete, but in order to allow for "synchronous" RPC, we want to add the ability to wait for completion. The waits are, of course, interruptible. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Further cleanupsTrond Myklebust2006-01-06
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* RPC: Clean up RPC task structureTrond Myklebust2006-01-06
| | | | | | | | | | Shrink the RPC task structure. Instead of storing separate pointers for task->tk_exit and task->tk_release, put them in a structure. Also pass the user data pointer as a parameter instead of passing it via task->tk_calldata. This enables us to nest callbacks. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Yet more RPC cleanupsTrond Myklebust2006-01-06
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* [PATCH] Keep nfsd from exiting when seeing recv() errorsOlaf Kirch2006-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I submitted this one previously - svc_tcp_recvfrom currently returns any errors to the caller, including ECONNRESET and the like. This is something svc_recv isn't able to deal with: len = svsk->sk_recvfrom(rqstp); [...] if (len == 0 || len == -EAGAIN) { [...] return -EAGAIN; } [...] return len; The nfsd main loop will exit when it sees an error code other than EAGAIN. The following patch fixes this problem svc_recv is not equipped to deal with error codes other than EAGAIN, and will propagate anything else (such as ECONNRESET) up to nfsd, causing it to exit. Signed-off-by: Olaf Kirch <okir@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: fix hash function for IP addresses on 64bit little-endian ↵NeilBrown2006-01-06
| | | | | | | | | | | | | | | | | | | | | | | | machines. The hash.h hash_long function, when used on a 64 bit machine, ignores many of the middle-order bits. (The prime chosen it too bit-sparse). IP addresses for clients of an NFS server are very likely to differ only in the low-order bits. As addresses are stored in network-byte-order, these bits become middle-order bits in a little-endian 64bit 'long', and so do not contribute to the hash. Thus you can have the situation where all clients appear on one hash chain. So, until hash_long is fixed (or maybe forever), us a hash function that works well on IP addresses - xor the bytes together. Thanks to "Iozone" <capps@iozone.org> for identifying this problem. Cc: "Iozone" <capps@iozone.org> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: move struct proto_ops to constEric Dumazet2006-01-03
| | | | | | | | | | | | | | | | | | | | | | I noticed that some of 'struct proto_ops' used in the kernel may share a cache line used by locks or other heavily modified data. (default linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at least) This patch makes sure a 'struct proto_ops' can be declared as const, so that all cpus can share all parts of it without false sharing. This is not mandatory : a driver can still use a read/write structure if it needs to (and eventually a __read_mostly) I made a global stubstitute to change all existing occurences to make them const. This should reduce the possibility of false sharing on SMP, and speedup some socket system calls. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* SUNRPC: Fix "EPIPE" error on mount of rpcsec_gss-protected partitionsTrond Myklebust2005-12-19
| | | | | | | | gss_create_upcall() should not error just because rpc.gssd closed the pipe on its end. Instead, it should requeue the pending requests and then retry. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* RPC: Do not block on skb allocationTrond Myklebust2005-12-19
| | | | | | | | | | | | | | | | | | | | | | | | If we get something like the following, [ 125.300636] [<c04086e1>] schedule_timeout+0x54/0xa5 [ 125.305931] [<c040866e>] io_schedule_timeout+0x29/0x33 [ 125.311495] [<c02880c4>] blk_congestion_wait+0x70/0x85 [ 125.317058] [<c014136b>] throttle_vm_writeout+0x69/0x7d [ 125.322720] [<c014714d>] shrink_zone+0xe0/0xfa [ 125.327560] [<c01471d4>] shrink_caches+0x6d/0x6f [ 125.332581] [<c01472a6>] try_to_free_pages+0xd0/0x1b5 [ 125.338056] [<c013fa4b>] __alloc_pages+0x135/0x2e8 [ 125.343258] [<c03b74ad>] tcp_sendmsg+0xaa0/0xb78 [ 125.348281] [<c03d4666>] inet_sendmsg+0x48/0x53 [ 125.353212] [<c0388716>] sock_sendmsg+0xb8/0xd3 [ 125.358147] [<c0388773>] kernel_sendmsg+0x42/0x4f [ 125.363259] [<c038bc00>] sock_no_sendpage+0x5e/0x77 [ 125.368556] [<c03ee7af>] xs_tcp_send_request+0x2af/0x375 then the socket is blocked until memory is reclaimed, and no progress can ever be made. Try to access the emergency pools by using GFP_ATOMIC. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Fix Oopsable condition in rpc_pipefsTrond Myklebust2005-12-03
| | | | | | | | | | The elements on rpci->in_upcall are tracked by the filp->private_data, which will ensure that they get released when the file is closed. The exception is if rpc_close_pipes() gets called first, since that sets rpci->ops to NULL. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: Funny looking code in __rpc_purge_upcallTrond Myklebust2005-11-25
| | | | | | | | In __rpc_purge_upcall (net/sunrpc/rpc_pipe.c), the newer code to clean up the in_upcall list has a typo. Thanks to Vince Busam <vbusam@google.com> for spotting this! Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* [PATCH] knfsd: make sure nfsd doesn't hog a cpu foreverNeilBrown2005-11-15
| | | | | | | | | | | | | | | Being kernel-threads, nfsd servers don't get pre-empted (depending on CONFIG). If there is a steady stream of NFS requests that can be served from cache, an nfsd thread may hold on to a cpu indefinitely, which isn't very friendly. So it is good to have a cond_resched in there (just before looking for a new request to serve), to make sure we play nice. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Detect hardware rx checksum faults correctlyHerbert Xu2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] SUNRPC: don't reencode when looping in call transmit.Trond Myklebust2005-11-09
| | | | | | | | | | | | | | | If the call to xprt_transmit() fails due to socket buffer space exhaustion, we do not need to re-encode the RPC message when we loop back through call_transmit. Re-encoding can actually end up triggering the WARN_ON() in call_decode() if we re-encode something like a read() request and auth->au_rslack has changed. It can also cause us to increment the RPCSEC_GSS sequence number beyond the limits of the allowed window. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sanitize lookup_hash prototypeChristoph Hellwig2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | ->permission and ->lookup have a struct nameidata * argument these days to pass down lookup intents. Unfortunately some callers of lookup_hash don't actually pass this one down. For lookup_one_len() we don't have a struct nameidata to pass down, but as this function is a library function only used by filesystem code this is an acceptable limitation. All other callers should pass down the nameidata, so this patch changes the lookup_hash interface to only take a struct nameidata argument and derives the other two arguments to __lookup_hash from it. All callers already have the nameidata argument available so this is not a problem. At the same time I'd like to deprecate the lookup_hash interface as there are better exported interfaces for filesystem usage. Before it can actually be removed I need to fix up rpc_pipefs. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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