aboutsummaryrefslogtreecommitdiffstats
path: root/include/net/sock.h
Commit message (Collapse)AuthorAgeFilesLines
...
* [NET]: Isolate the net/core/ sysctl tablePavel Emelyanov2008-01-281-4/+0
| | | | | | | | | | | Using ctl paths we can put all the stuff, related to net/core/ sysctl table, into one file and remove all the references on it. As a good side effect this hides the "core_table" name from the global scope :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: netns compilation speedupDenis V. Lunev2008-01-281-1/+1
| | | | | | | | This patch speedups compilation when net_namespace.h is changed. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Eliminate unused argument from sk_stream_alloc_pskbPavel Emelyanov2008-01-281-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | The 3rd argument is always zero (according to grep :) Eliminate it and merge the function with sk_stream_alloc_skb. This saves 44 more bytes, and together with the previous patch we have: add/remove: 1/0 grow/shrink: 0/8 up/down: 183/-751 (-568) function old new delta sk_stream_alloc_skb - 183 +183 ip_rt_init 529 525 -4 arp_ignore 112 107 -5 __inet_lookup_listener 284 274 -10 tcp_sendmsg 2583 2481 -102 tcp_sendpage 1449 1300 -149 tso_fragment 417 258 -159 tcp_fragment 1149 988 -161 __tcp_push_pending_frames 1998 1837 -161 Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Uninline the sk_stream_alloc_pskbPavel Emelyanov2008-01-281-27/+2
| | | | | | | | | | | | | | | | | | | | This function seems too big for inlining. Indeed, it saves half-a-kilo when uninlined: add/remove: 1/0 grow/shrink: 0/7 up/down: 195/-719 (-524) function old new delta sk_stream_alloc_pskb - 195 +195 ip_rt_init 529 525 -4 __inet_lookup_listener 284 274 -10 tcp_sendmsg 2583 2486 -97 tcp_sendpage 1449 1305 -144 tso_fragment 417 267 -150 tcp_fragment 1149 992 -157 __tcp_push_pending_frames 1998 1841 -157 Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] proto: Use pcounters for the inuse fieldArnaldo Carvalho de Melo2008-01-281-51/+8
| | | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Move sock_valbool_flag to socket.cPavel Emelyanov2008-01-281-8/+0
| | | | | | | | | | | | | | | | The sock_valbool_flag() helper is used in setsockopt to set or reset some flag on the sock. This helper is required in the net/socket.c only, so move it there. Besides, patch two places in sys_setsockopt() that repeat this helper functionality manually. Since this is not a bugfix, but a trivial cleanup, I prepared this patch against net-2.6.25, but it also applies (with a single offset) to the latest net-2.6. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Add raw drops counter.Wang Chen2008-01-281-3/+8
| | | | | | | Add raw drops counter for IPv4 in /proc/net/raw . Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SOCK]: Adds a rcu_dereference() in sk_filterEric Dumazet2008-01-081-1/+1
| | | | | | | | | | | | It seems commit fda9ef5d679b07c9d9097aaf6ef7f069d794a8f9 introduced a RCU protection for sk_filter(), without a rcu_dereference() Either we need a rcu_dereference(), either a comment should explain why we dont need it. I vote for the former. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Fix TCP header misalignmentHerbert Xu2007-11-181-0/+3
| | | | | | | | | | | | | | | | | | | | | Indeed my previous change to alloc_pskb has made it possible for the TCP header to be misaligned iff the MTU is not a multiple of 4 (and less than a page). So I suspect the optimised IPsec MTU calculation is giving you just such an MTU :) This patch fixes it by changing alloc_pskb to make sure that the size is at least 32-bit aligned. This does not cause the problem fixed by the previous patch because max_header is always 32-bit aligned which means that in the SG/NOTSO case this will be a no-op. I thought about putting this in the callers but all the current callers are from TCP. If and when we get a non-TCP caller we can always create a TCP wrapper for this function and move the alignment over there. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Fix size calculation in sk_stream_alloc_pskbHerbert Xu2007-11-141-4/+6
| | | | | | | | | | | | | | | | | | | | | | We round up the header size in sk_stream_alloc_pskb so that TSO packets get zero tail room. Unfortunately this rounding up is not coordinated with the select_size() function used by TCP to calculate the second parameter of sk_stream_alloc_pskb. As a result, we may allocate more than a page of data in the non-TSO case when exactly one page is desired. In fact, rounding up the head room is detrimental in the non-TSO case because it makes memory that would otherwise be available to the payload head room. TSO doesn't need this either, all it wants is the guarantee that there is no tail room. So this patch fixes this by adjusting the skb_reserve call so that exactly the requested amount (which all callers have calculated in a precise way) is made available as tail room. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Define infrastructure to keep 'inuse' changes in an efficent SMP/NUMA ↵Eric Dumazet2007-11-071-6/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | way. "struct proto" currently uses an array stats[NR_CPUS] to track change on 'inuse' sockets per protocol. If NR_CPUS is big, this means we use a big memory area for this. Moreover, all this memory area is located on a single node on NUMA machines, increasing memory pressure on the boot node. In this patch, I tried to : - Keep a fast !CONFIG_SMP implementation - Keep a fast CONFIG_SMP implementation for often used protocols (tcp,udp,raw,...) - Introduce a NUMA efficient implementation Some helper macros are defined in include/net/sock.h These macros take into account CONFIG_SMP If a "struct proto" is declared without using DEFINE_PROTO_INUSE / REF_PROTO_INUSE macros, it will automatically use a default implementation, using a dynamically allocated percpu zone. This default implementation will be NUMA efficient, but might use 32/64 bytes per possible cpu because of current alloc_percpu() implementation. However it still should be better than previous implementation based on stats[NR_CPUS] field. When a "struct proto" is changed to use the new macros, we use a single static "int" percpu variable, lowering the memory and cpu costs, still preserving NUMA efficiency. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Forget the zero_it argument of sk_alloc()Pavel Emelyanov2007-11-011-1/+1
| | | | | | | | | | | | | | | Finally, the zero_it argument can be completely removed from the callers and from the function prototype. Besides, fix the checkpatch.pl warnings about using the assignments inside if-s. This patch is rather big, and it is a part of the previous one. I splitted it wishing to make the patches more readable. Hope this particular split helped. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Move the sock_copy() from the headerPavel Emelyanov2007-11-011-14/+0
| | | | | | | | The sock_copy() call is not used outside the sock.c file, so just move it into a sock.c Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix the race between sk_filter_(de|at)tach and sk_clone()Pavel Emelyanov2007-10-171-11/+1
| | | | | | | | | | | | | The proposed fix is to delay the reference counter decrement until the quiescent state pass. This will give sk_clone() a chance to get the reference on the cloned filter. Regular sk_filter_uncharge can happen from the sk_free() only and there's no need in delaying the put - the socket is dead anyway and is to be release itself. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Move the filter releasing into a separate callPavel Emelyanov2007-10-171-4/+8
| | | | | | | | | | | | | This is done merely as a preparation for the fix. The sk_filter_uncharge() unaccounts the filter memory and calls the sk_filter_release(), which in turn decrements the refcount anf frees the filter. The latter function will be required separately. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: sparse warning fixesStephen Hemminger2007-10-101-11/+11
| | | | | | | | | Fix a bunch of sparse warnings. Mostly about 0 used as NULL pointer, and shadowed variable declarations. One notable case was that hash size should have been unsigned. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make socket creation namespace safe.Eric W. Biederman2007-10-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | This patch passes in the namespace a new socket should be created in and has the socket code do the appropriate reference counting. By virtue of this all socket create methods are touched. In addition the socket create methods are modified so that they will fail if you attempt to create a socket in a non-default network namespace. Failing if we attempt to create a socket outside of the default network namespace ensures that as we incrementally make the network stack network namespace aware we will not export functionality that someone has not audited and made certain is network namespace safe. Allowing us to partially enable network namespaces before all of the exotic protocols are supported. Any protocol layers I have missed will fail to compile because I now pass an extra parameter into the socket creation code. [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add a network namespace parameter to struct sockEric W. Biederman2007-10-101-0/+3
| | | | | | | | | | Sockets need to get a reference to their network namespace, or possibly a simple hold if someone registers on the network namespace notifier and will free the sockets when the namespace is going to be destroyed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Change type of owner in sock_lock_t to int, renameJohn Heffner2007-10-101-4/+3
| | | | | | | | | | The type of owner in sock_lock_t is currently (struct sock_iocb *), presumably for historical reasons. It is never used as this type, only tested as NULL or set to (void *)1. For clarity, this changes it to type int, and renames to owned, to avoid any possible type casting errors. 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 Järvinen2007-10-101-1/+2
| | | | | | | | | | | 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>
* [SOCK]: Shrink struct sock by 8 bytes on 64-bit.Arnaldo Carvalho de Melo2007-05-311-1/+1
| | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cleanup compat ioctl handlingChristoph Hellwig2007-05-081-9/+0
| | | | | | | | | | | Merge all compat ioctl handling into compat_ioctl.c instead of splitting it over compat.c and compat_ioctl.c. This also allows to get rid of ioctl32.h Signed-off-by: Christoph Hellwig <hch@lst.de> Looks-good-to: Andi Kleen <ak@suse.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET]: Move sk_setup_caps() out of line.Andi Kleen2007-04-251-13/+1
| | | | | | | It is far too large to be an inline and not in any hot paths. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS supportEric Dumazet2007-04-251-10/+7
| | | | | | | | | | | | | | | | | | | | | Now that network timestamps use ktime_t infrastructure, we can add a new SOL_SOCKET sockopt SO_TIMESTAMPNS. This command is similar to SO_TIMESTAMP, but permits transmission of a 'timespec struct' instead of a 'timeval struct' control message. (nanosecond resolution instead of microsecond) Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are mutually exclusive. sock_recv_timestamp() became too big to be fully inlined so I added a __sock_recv_timestamp() helper function. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: linux-arch@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Replace CONFIG_NET_DEBUG with sysctl.Stephen Hemminger2007-04-251-7/+5
| | | | | | | | Covert network warning messages from a compile time to runtime choice. Removes kernel config option and replaces it with new /proc/sys/net/core/warnings. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolutionEric Dumazet2007-04-251-0/+1
| | | | | | | | | | Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Abstract out all write queue operations.David S. Miller2007-04-251-21/+0
| | | | | | | This allows the write queue implementation to be changed, for example, to one which allows fast interval searching. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: convert network timestamps to ktime_tEric Dumazet2007-04-251-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently use a special structure (struct skb_timeval) and plain 'struct timeval' to store packet timestamps in sk_buffs and struct sock. This has some drawbacks : - Fixed resolution of micro second. - Waste of space on 64bit platforms where sizeof(struct timeval)=16 I suggest using ktime_t that is a nice abstraction of high resolution time services, currently capable of nanosecond resolution. As sizeof(ktime_t) is 8 bytes, using ktime_t in 'struct sock' permits a 8 byte shrink of this structure on 64bit architectures. Some other structures also benefit from this size reduction (struct ipq in ipv4/ip_fragment.c, struct frag_queue in ipv6/reassembly.c, ...) Once this ktime infrastructure adopted, we can more easily provide nanosecond resolution on top of it. (ioctl SIOCGSTAMPNS and/or SO_TIMESTAMPNS/SCM_TIMESTAMPNS) Note : this patch includes a bug correction in compat_sock_get_timestamp() where a "err = 0;" was missing (so this syscall returned -ENOENT instead of 0) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> CC: John find <linux.kernel@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Keep sk_backlog near sk_lockEric Dumazet2007-04-251-9/+9
| | | | | | | | | | | | | | | | | sk_backlog is a critical field of struct sock. (known famous words) It is (ab)used in hot paths, in particular in release_sock(), tcp_recvmsg(), tcp_v4_rcv(), sk_receive_skb(). It really makes sense to place it next to sk_lock, because sk_backlog is only used after sk_lock locked (and thus memory cache line in L1 cache). This should reduce cache misses and sk_lock acquisition time. (In theory, we could only move the head pointer near sk_lock, and leaving tail far away, because 'tail' is normally not so hot, but keep it simple :) ) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Revert incorrect accept queue backlog changes.David S. Miller2007-03-061-1/+1
| | | | | | | | | | | | | | | This reverts two changes: 8488df894d05d6fa41c2bd298c335f944bb0e401 248f06726e866942b3d8ca8f411f9067713b7ff8 A backlog value of N really does mean allow "N + 1" connections to queue to a listening socket. This allows one to specify "0" as the backlog and still get 1 connection. Noticed by Gerrit Renker and Rick Jones. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix bugs in "Whether sock accept queue is full" checkingWei Dong2007-03-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when I use linux TCP socket, and find there is a bug in function sk_acceptq_is_full(). When a new SYN comes, TCP module first checks its validation. If valid, send SYN,ACK to the client and add the sock to the syn hash table. Next time if received the valid ACK for SYN,ACK from the client. server will accept this connection and increase the sk->sk_ack_backlog -- which is done in function tcp_check_req().We check wether acceptq is full in function tcp_v4_syn_recv_sock(). Consider an example: After listen(sockfd, 1) system call, sk->sk_max_ack_backlog is set to 1. As we know, sk->sk_ack_backlog is initialized to 0. Assuming accept() system call is not invoked now. 1. 1st connection comes. invoke sk_acceptq_is_full(). sk- >sk_ack_backlog=0 sk->sk_max_ack_backlog=1, function return 0 accept this connection. Increase the sk->sk_ack_backlog 2. 2nd connection comes. invoke sk_acceptq_is_full(). sk- >sk_ack_backlog=1 sk->sk_max_ack_backlog=1, function return 0 accept this connection. Increase the sk->sk_ack_backlog 3. 3rd connection comes. invoke sk_acceptq_is_full(). sk- >sk_ack_backlog=2 sk->sk_max_ack_backlog=1, function return 1. Refuse this connection. I think it has bugs. after listen system call. sk->sk_max_ack_backlog=1 but now it can accept 2 connections. Signed-off-by: Wei Dong <weid@np.css.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Handle disabled preemption in gfp_any()Patrick McHardy2007-02-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ctnetlink uses netlink_unicast from an atomic_notifier_chain (which is called within a RCU read side critical section) without holding further locks. netlink_unicast calls netlink_trim with the result of gfp_any() for the gfp flags, which are passed down to pskb_expand_header. gfp_any() only checks for softirq context and returns GFP_KERNEL, resulting in this warning: BUG: sleeping function called from invalid context at mm/slab.c:3032 in_atomic():1, irqs_disabled():0 no locks held by rmmod/7010. Call Trace: [<ffffffff8109467f>] debug_show_held_locks+0x9/0xb [<ffffffff8100b0b4>] __might_sleep+0xd9/0xdb [<ffffffff810b5082>] __kmalloc+0x68/0x110 [<ffffffff811ba8f2>] pskb_expand_head+0x4d/0x13b [<ffffffff81053147>] netlink_broadcast+0xa5/0x2e0 [<ffffffff881cd1d7>] :nfnetlink:nfnetlink_send+0x83/0x8a [<ffffffff8834f6a6>] :nf_conntrack_netlink:ctnetlink_conntrack_event+0x94c/0x96a [<ffffffff810624d6>] notifier_call_chain+0x29/0x3e [<ffffffff8106251d>] atomic_notifier_call_chain+0x32/0x60 [<ffffffff881d266d>] :nf_conntrack:destroy_conntrack+0xa5/0x1d3 [<ffffffff881d194e>] :nf_conntrack:nf_ct_cleanup+0x8c/0x12c [<ffffffff881d4614>] :nf_conntrack:kill_l3proto+0x0/0x13 [<ffffffff881d482a>] :nf_conntrack:nf_conntrack_l3proto_unregister+0x90/0x94 [<ffffffff883551b3>] :nf_conntrack_ipv4:nf_conntrack_l3proto_ipv4_fini+0x2b/0x5d [<ffffffff8109d44f>] sys_delete_module+0x1b5/0x1e6 [<ffffffff8105f245>] trace_hardirqs_on_thunk+0x35/0x37 [<ffffffff8105911e>] system_call+0x7e/0x83 Since netlink_unicast is supposed to be callable from within RCU read side critical sections, make gfp_any() check for in_atomic() instead of in_softirq(). Additionally nfnetlink_send needs to use gfp_any() as well for the call to netlink_broadcast). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] lockdep: annotate nfs/nfsd in-kernel socketsPeter Zijlstra2006-12-071-0/+19
| | | | | | | | | | | | | | | | | Stick NFS sockets in their own class to avoid some lockdep warnings. NFS sockets are never exposed to user-space, and will hence not trigger certain code paths that would otherwise pose deadlock scenarios. [akpm@osdl.org: cleanups] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Steven Dickson <SteveD@redhat.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: Neil Brown <neilb@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> [ Fixed patch corruption by quilt, pointed out by Peter Zijlstra ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] slab: remove kmem_cache_tChristoph Lameter2006-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] severing skbuff.h -> mm.hAl Viro2006-12-041-0/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [NET]: Conditionally use bh_lock_sock_nested in sk_receive_skbArnaldo Carvalho de Melo2006-12-021-1/+2
| | | | | | | | | | | Spotted by Ian McDonald, tentatively fixed by Gerrit Renker: http://www.mail-archive.com/dccp%40vger.kernel.org/msg00599.html Rewritten not to unroll sk_receive_skb, in the common case, i.e. no lock debugging, its optimized away. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [NET]: Annotate callers of csum_partial_copy_...() and csum_and_copy...() in ↵Al Viro2006-12-021-1/+1
| | | | | | | net/* Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BLUETOOTH] lockdep: annotate sk_lock nesting in AF_BLUETOOTHPeter Zijlstra2006-12-021-1/+7
| | | | | | ============================================= [ INFO: possible recursive locking detected ] 2.6.18-1.2726.fc6 #1
* [NET]: Re-fix of doc-comment in sock.hPaul Bonser2006-11-251-5/+10
| | | | | | | | | | | | Restoring old, correct comment for sk_filter_release, moving it to where it should actually be, and changing new comment into proper comment for sk_filter_rcu_free, where it actually makes sense. The original fix submitted for this on Oct 23 mistakenly documented the wrong function. Signed-off-by: Paul Bonser <misterpib@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: kernel-doc fix for sock.hRandy Dunlap2006-10-221-2/+1
| | | | | | | | Fix kernel-doc warning in include/net/sock.h: Warning(/var/linsrc/linux-2619-rc1-pv//include/net/sock.h:894): No description found for parameter 'rcu' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] Vectorize aio_read/aio_write fileop methodsBadari Pulavarty2006-10-011-1/+0
| | | | | | | | | | | | This patch vectorizes aio_read() and aio_write() methods to prepare for collapsing all aio & vectored operations into one interface - which is aio_read()/aio_write(). Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Michael Holzheu <HOLZHEU@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Fix sk->sk_filter field accessDmitry Mishin2006-09-221-17/+17
| | | | | | | | | | | Function sk_filter() is called from tcp_v{4,6}_rcv() functions with arg needlock = 0, while socket is not locked at that moment. In order to avoid this and similar issues in the future, use rcu for sk->sk_filter field read protection. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org>
* [MLSXFRM]: Auto-labeling of child socketsVenkat Yekkirala2006-09-221-0/+1
| | | | | | | | | | | | | This automatically labels the TCP, Unix stream, and dccp child sockets as well as openreqs to be at the same MLS level as the peer. This will result in the selection of appropriately labeled IPSec Security Associations. This also uses the sock's sid (as opposed to the isec sid) in SELinux enforcement of secmark in rcv_skb and postroute_last hooks. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add security sid to sockVenkat Yekkirala2006-09-221-0/+13
| | | | | | | | | | | | | This adds security for IP sockets at the sock level. Security at the sock level is needed to enforce the SELinux security policy for security associations even when a sock is orphaned (such as in the TCP LAST_ACK state). This will also be used to enforce SELinux controls over data arriving at or leaving a child socket while it's still waiting to be accepted. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] lockdep: annotate sk_locksIngo Molnar2006-07-031-10/+10
| | | | | | | | | | | | | | | | | | | Teach sk_lock semantics to the lock validator. In the softirq path the slock has mutex_trylock()+mutex_unlock() semantics, in the process context sock_lock() case it has mutex_lock()/mutex_unlock() semantics. Thus we treat sock_owned_by_user() flagged areas as an exclusion area too, not just those areas covered by a held sk_lock.slock. Effect on non-lockdep kernels: minimal, sk_lock_sock_init() has been turned into an inline function. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lockdep: annotate bh_lock_sock()Ingo Molnar2006-07-031-0/+3
| | | | | | | | | | | Teach special (recursive) locking code to the lock validator. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lockdep: annotate sock_lock_init()Ingo Molnar2006-07-031-0/+4
| | | | | | | | | | | Teach special (multi-initialized, per-address-family) locking code to the lock validator. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Generalise TSO-specific bits from skb_setup_capsHerbert Xu2006-06-301-3/+10
| | | | | | | | | | | | | | This patch generalises the TSO-specific bits from sk_setup_caps by adding the sk_gso_type member to struct sock. This makes sk_setup_caps generic so that it can be used by TCPv6 or UFO. The only catch is that whoever uses this must provide a GSO implementation for their protocol which I think is a fair deal :) For now UFO continues to live without a GSO implementation which is OK since it doesn't use the sock caps field at the moment. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add ECN support for TSOMichael Chan2006-06-291-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | In the current TSO implementation, NETIF_F_TSO and ECN cannot be turned on together in a TCP connection. The problem is that most hardware that supports TSO does not handle CWR correctly if it is set in the TSO packet. Correct handling requires CWR to be set in the first packet only if it is set in the TSO header. This patch adds the ability to turn on NETIF_F_TSO and ECN using GSO if necessary to handle TSO packets with CWR set. Hardware that handles CWR correctly can turn on NETIF_F_TSO_ECN in the dev-> features flag. All TSO packets with CWR set will have the SKB_GSO_TCPV4_ECN set. If the output device does not have the NETIF_F_TSO_ECN feature set, GSO will split the packet up correctly with CWR only set in the first segment. With help from Herbert Xu <herbert@gondor.apana.org.au>. Since ECN can always be enabled with TSO, the SOCK_NO_LARGESEND sock flag is completely removed. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: fix net-core kernel-docRandy Dunlap2006-06-231-0/+1
| | | | | | | | | | Warning(/var/linsrc/linux-2617-g4//include/linux/skbuff.h:304): No description found for parameter 'dma_cookie' Warning(/var/linsrc/linux-2617-g4//include/net/sock.h:1274): No description found for parameter 'copied_early' Warning(/var/linsrc/linux-2617-g4//net/core/dev.c:3309): No description found for parameter 'chan' Warning(/var/linsrc/linux-2617-g4//net/core/dev.c:3309): No description found for parameter 'event' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.1 at 2024-12-27 06:00:30 +0000