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* 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: 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: 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: Change the svc_sock in the rqstp structure to a transportTom Tucker2008-02-01
| | | | | | | | | | | | | | | The rqstp structure contains a pointer to the transport for the RPC request. This functionaly trivial patch adds an unamed union with pointers to both svc_sock and svc_xprt. Ultimately the union will be removed and only the rq_xprt field will remain. This allows incrementally extracting transport independent interfaces without one gigundo patch. 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>
* svc: Add an svc transport classTom Tucker2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | The transport class (svc_xprt_class) represents a type of transport, e.g. udp, tcp, rdma. A transport class has a unique name and a set of transport operations kept in the svc_xprt_ops structure. A transport class can be dynamically registered and unregisterd. The svc_xprt_class represents the module that implements the transport type and keeps reference counts on the module to avoid unloading while there are active users. The endpoint (svc_xprt) is a generic, transport independent endpoint that can be used to send and receive data for an RPC service. It inherits it's operations from the transport class. A transport driver module registers and unregisters itself with svc sunrpc by calling svc_reg_xprt_class, and svc_unreg_xprt_class respectively. 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>
* nfsd: Allow AIX client to read dir containing mountpointsFrank Filz2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses a compatibility issue with a Linux NFS server and AIX NFS client. I have exported /export as fsid=0 with sec=krb5:krb5i I have mount --bind /home onto /export/home I have exported /export/home with sec=krb5i The AIX client mounts / -o sec=krb5:krb5i onto /mnt If I do an ls /mnt, the AIX client gets a permission error. Looking at the network traceIwe see a READDIR looking for attributes FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID. The response gives a NFS4ERR_WRONGSEC which the AIX client is not expecting. Since the AIX client is only asking for an attribute that is an attribute of the parent file system (pseudo root in my example), it seems reasonable that there should not be an error. In discussing this issue with Bruce Fields, I initially proposed ignoring the error in nfsd4_encode_dirent_fattr() if all that was being asked for was FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID, however, Bruce suggested that we avoid calling cross_mnt() if only these attributes are requested. The following patch implements bypassing cross_mnt() if only FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID are called. Since there is some complexity in the code in nfsd4_encode_fattr(), I didn't want to duplicate code (and introduce a maintenance nightmare), so I added a parameter to nfsd4_encode_fattr() that indicates whether it should ignore cross mounts and simply fill in the attribute using the passed in dentry as opposed to it's parent. Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: move nfsd/auth.h into fs/nfsdJ. Bruce Fields2008-02-01
| | | | | | | | | | This header is used only in a few places in fs/nfsd, so there seems to be little point to having it in include/. (Thanks to Robert Day for pointing this out.) Cc: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: allow cache_register to return error on failureJ. Bruce Fields2008-02-01
| | | | | | | | | | | | | Newer server features such as nfsv4 and gss depend on proc to work, so a failure to initialize the proc files they need should be treated as fatal. Thanks to Andrew Morton for style fix and compile fix in case where CONFIG_NFSD_V4 is undefined. Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: cache unregistration needn't return errorJ. Bruce Fields2008-02-01
| | | | | | | | | | There's really nothing much the caller can do if cache unregistration fails. And indeed, all any caller does in this case is print an error and continue. So just return void and move the printk's inside cache_unregister. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: fail module init on reply cache init failureJ. Bruce Fields2008-02-01
| | | | | | | | | | | | | | | | | | If the reply cache initialization fails due to a kmalloc failure, currently we try to soldier on with a reduced (or nonexistant) reply cache. Better to just fail immediately: the failure is then much easier to understand and debug, and it could save us complexity in some later code. (But actually, it doesn't help currently because the cache is also turned off in some odd failure cases; we should probably find a better way to handle those failure cases some day.) Fix some minor style problems while we're at it, and rename nfsd_cache_init() to remove the need for a comment describing it. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* NFSD: Path name length signage in nfsd request argument structuresChuck Lever2008-02-01
| | | | | | | | | Clean up: For consistency, store the length of path name strings in nfsd argument structures as unsigned integers. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-By: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* NFSD: Adjust filename length argument of nfsd_lookupChuck Lever2008-02-01
| | | | | | | | | | Clean up: adjust the sign of the length argument of nfsd_lookup and nfsd_lookup_dentry, for consistency with recent changes. NFSD version 4 callers already pass an unsigned file name length. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-By: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* NFSD: File name length signage in nfsd request argument structuresChuck Lever2008-02-01
| | | | | | | | | | Clean up: For consistency, store the length of file name strings in nfsd argument structures as unsigned integers. This matches the XDR routines and client argument structures for the same operation types. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-By: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* NLM: Fix sign of length of NLM variable length stringsChuck Lever2008-02-01
| | | | | | | | | | | | | | | According to The Open Group's NLM specification, NLM callers are variable length strings. XDR variable length strings use an unsigned 32 bit length. And internally, negative string lengths are not meaningful for the Linux NLM implementation. Clean up: Make nlm_lock.len and nlm_reboot.len unsigned integers. This makes the sign of NLM string lengths consistent with the sign of xdr_netobj lengths. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-By: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* SUNRPC: Use unsigned string lengths in xdr_decode_string_inplaceChuck Lever2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | XDR strings, opaques, and net objects should all use unsigned lengths. To wit, RFC 4506 says: 4.2. Unsigned Integer An XDR unsigned integer is a 32-bit datum that encodes a non-negative integer in the range [0,4294967295]. ... 4.11. String The standard defines a string of n (numbered 0 through n-1) ASCII bytes to be the number n encoded as an unsigned integer (as described above), and followed by the n bytes of the string. After this patch, xdr_decode_string_inplace now matches the other XDR string and array helpers that take a string length argument. See: xdr_encode_opaque_fixed, xdr_encode_opaque, xdr_encode_array Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-By: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2008-02-01
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: kill swap_io_context() as-iosched: fix inconsistent ioc->lock context ide-cd: fix leftover data BUG block: make elevator lib checkpatch compliant cfq-iosched: make checkpatch compliant block: make core bits checkpatch compliant block: new end request handling interface should take unsigned byte counts unexport add_disk_randomness block/sunvdc.c:print_version() must be __devinit splice: always updated atime in direct splice
| * block: kill swap_io_context()Jens Axboe2008-02-01
| | | | | | | | | | | | | | | | | | | | It blindly copies everything in the io_context, including the lock. That doesn't work so well for either lock ordering or lockdep. There seems zero point in swapping io contexts on a request to request merge, so the best point of action is to just remove it. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * block: new end request handling interface should take unsigned byte countsJens Axboe2008-02-01
| | | | | | | | | | | | | | No point in passing signed integers as the byte count, they can never be negative. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-02-01
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (173 commits) [NETNS]: Lookup in FIB semantic hashes taking into account the namespace. [NETNS]: Add a namespace mark to fib_info. [IPV4]: fib_sync_down rework. [NETNS]: Process interface address manipulation routines in the namespace. [IPV4]: Small style cleanup of the error path in rtm_to_ifaddr. [IPV4]: Fix memory leak on error path during FIB initialization. [NETFILTER]: Ipv6-related xt_hashlimit compilation fix. [NET_SCHED]: Add flow classifier [NET_SCHED]: sch_sfq: make internal queues visible as classes [NET_SCHED]: sch_sfq: add support for external classifiers [NET_SCHED]: Constify struct tcf_ext_map [BLUETOOTH]: Fix bugs in previous conn add/del workqueue changes. [TCP]: Unexport sysctl_tcp_tso_win_divisor [IPV4]: Make struct ipv4_devconf static. [TR] net/802/tr.c: sysctl_tr_rif_timeout static [XFRM]: Fix statistics. [XFRM]: Remove unused exports. [PKT_SCHED] sch_teql.c: Duplicate IFF_BROADCAST in FMASK, remove 2nd. [BNX2]: Fix ASYM PAUSE advertisement for remote PHY. [IPV4] route cache: Introduce rt_genid for smooth cache invalidation ...
| * | [NETNS]: Lookup in FIB semantic hashes taking into account the namespace.Denis V. Lunev2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The namespace is not available in the fib_sync_down_addr, add it as a parameter. Looking up a device by the pointer to it is OK. Looking up using a result from fib_trie/fib_hash table lookup is also safe. No need to fix that at all. So, just fix lookup by address and insertion to the hash table path. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETNS]: Add a namespace mark to fib_info.Denis V. Lunev2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is required to make fib_info lookups namespace aware. In the other case initial namespace devices are marked as dead in the local routing table during other namespace stop. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [IPV4]: fib_sync_down rework.Denis V. Lunev2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fib_sync_down can be called with an address and with a device. In reality it is called either with address OR with a device. The codepath inside is completely different, so lets separate it into two calls for these two cases. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NET_SCHED]: Add flow classifierPatrick McHardy2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new "flow" classifier, which is meant to extend the SFQ hashing capabilities without hard-coding new hash functions and also allows deterministic mappings of keys to classes, replacing some out of tree iptables patches like IPCLASSIFY (maps IPs to classes), IPMARK (maps IPs to marks, with fw filters to classes), ... Some examples: - Classic SFQ hash: tc filter add ... flow hash \ keys src,dst,proto,proto-src,proto-dst divisor 1024 - Classic SFQ hash, but using information from conntrack to work properly in combination with NAT: tc filter add ... flow hash \ keys nfct-src,nfct-dst,proto,nfct-proto-src,nfct-proto-dst divisor 1024 - Map destination IPs of 192.168.0.0/24 to classids 1-257: tc filter add ... flow map \ key dst addend -192.168.0.0 divisor 256 - alternatively: tc filter add ... flow map \ key dst and 0xff - similar, but reverse ordered: tc filter add ... flow map \ key dst and 0xff xor 0xff Perturbation is currently not supported because we can't reliable kill the timer on destruction. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NET_SCHED]: sch_sfq: make internal queues visible as classesPatrick McHardy2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | Add support for dumping statistics and make internal queues visible as classes. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NET_SCHED]: Constify struct tcf_ext_mapPatrick McHardy2008-01-31
| | | | | | | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [IPV4]: Make struct ipv4_devconf static.Adrian Bunk2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | struct ipv4_devconf can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [XFRM]: Fix statistics.Masahide NAKAMURA2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Outbound sequence number overflow error status is counted as XfrmOutStateSeqError. o Additionaly, it changes inbound sequence number replay error name from XfrmInSeqOutOfWindow to XfrmInStateSeqError to apply name scheme above. o Inbound IPv4 UDP encapsuling type mismatch error is wrongly mapped to XfrmInStateInvalid then this patch fiex the error to XfrmInStateMismatch. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [IPV4] route cache: Introduce rt_genid for smooth cache invalidationEric Dumazet2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current ip route cache implementation is not suited to large caches. We can consume a lot of CPU when cache must be invalidated, since we currently need to evict all cache entries, and this eviction is sometimes asynchronous. min_delay & max_delay can somewhat control this asynchronism behavior, but whole thing is a kludge, regularly triggering infamous soft lockup messages. When entries are still in use, this also consumes a lot of ram, filling dst_garbage.list. A better scheme is to use a generation identifier on each entry, so that cache invalidation can be performed by changing the table identifier, without having to scan all entries. No more delayed flushing, no more stalling when secret_interval expires. Invalidated entries will then be freed at GC time (controled by ip_rt_gc_timeout or stress), or when an invalidated entry is found in a chain when an insert is done. Thus we keep a normal equilibrium. This patch : - renames rt_hash_rnd to rt_genid (and makes it an atomic_t) - Adds a new rt_genid field to 'struct rtable' (filling a hole on 64bit) - Checks entry->rt_genid at appropriate places :
| * | [VLAN]: set_rx_mode support for unicast address listChris Leech2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reuse the existing logic for multicast list synchronization for the unicast address list. The core of dev_mc_sync/unsync are split out as __dev_addr_sync/unsync and moved from dev_mcast.c to dev.c. These are then used to implement dev_unicast_sync/unsync as well. I'm working on cleaning up Intel's FCoE stack, which generates new MAC addresses from the fibre channel device id assigned by the fabric as per the current draft specification in T11. When using such a protocol in a VLAN environment it would be nice to not always be forced into promiscuous mode, assuming the underlying Ethernet driver supports multiple unicast addresses as well. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | [IPV4] fib_trie: rescan if key is lost during dumpStephen Hemminger2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Normally during a dump the key of the last dumped entry is used for continuation, but since lock is dropped it might be lost. In that case fallback to the old counter based N^2 behaviour. This means the dump will end up skipping some routes which matches what FIB_HASH does. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETNS]: Tcp-v6 sockets per-net lookup.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a net argument to inet6_lookup and propagate it further. Actually, this is tcp-v6 implementation of what was done for tcp-v4 sockets in a previous patch. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETNS]: Tcp-v4 sockets per-net lookup.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a net argument to inet_lookup and propagate it further into lookup calls. Plus tune the __inet_check_established. The dccp and inet_diag, which use that lookup functions pass the init_net into them. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETNS]: Make bind buckets live in net namespaces.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This tags the inet_bind_bucket struct with net pointer, initializes it during creation and makes a filtering during lookup. A better hashfn, that takes the net into account is to be done in the future, but currently all bind buckets with similar port will be in one hash chain. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [INET]: Consolidate inet(6)_hash_connect.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These two functions are the same except for what they call to "check_established" and "hash" for a socket. This saves half-a-kilo for ipv4 and ipv6. add/remove: 1/0 grow/shrink: 1/4 up/down: 582/-1128 (-546) function old new delta __inet_hash_connect - 577 +577 arp_ignore 108 113 +5 static.hint 8 4 -4 rt_worker_func 376 372 -4 inet6_hash_connect 584 25 -559 inet_hash_connect 586 25 -561 Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [IPV6]: Introduce the INET6_TW_MATCH macro.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have INET_MATCH, INET_TW_MATCH and INET6_MATCH to test sockets and twbuckets for matching, but ipv6 twbuckets are tested manually. Here's the INET6_TW_MATCH to help with it. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETFILTER]: nf_conntrack: annotate l3protos with constJan Engelhardt2008-01-31
| | | | | | | | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETFILTER]: nf_{conntrack,nat}_proto_tcp: constify and annotate TCP modulesJan Engelhardt2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | Constify a few data tables use const qualifiers on variables where possible in the nf_*_proto_tcp sources. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETFILTER]: nf_{conntrack,nat}_pptp: annotate PPtP helper with constJan Engelhardt2008-01-31
| | | | | | | | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETFILTER]: nf_{conntrack,nat}_sip: annotate SIP helper with constJan Engelhardt2008-01-31
| | | | | | | | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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