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2007-02-12[NETFILTER]: nf_conntrack: fix invalid conntrack statistics RCU assumptionPatrick McHardy
NF_CT_STAT_INC assumes rcu_read_lock in nf_hook_slow disables preemption as well, making it legal to use __get_cpu_var without disabling preemption manually. The assumption is not correct anymore with preemptable RCU, additionally we need to protect against softirqs when not holding nf_conntrack_lock. Add NF_CT_STAT_INC_ATOMIC macro, which disables local softirqs, and use where necessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumptionPatrick McHardy
CONNTRACK_STAT_INC assumes rcu_read_lock in nf_hook_slow disables preemption as well, making it legal to use __get_cpu_var without disabling preemption manually. The assumption is not correct anymore with preemptable RCU, additionally we need to protect against softirqs when not holding ip_conntrack_lock. Add CONNTRACK_STAT_INC_ATOMIC macro, which disables local softirqs, and use where necessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_conntrack: properly use RCU API for ↵Patrick McHardy
nf_ct_protos/nf_ct_l3protos arrays Replace preempt_{enable,disable} based RCU by proper use of the RCU API and add missing rcu_read_lock/rcu_read_unlock calls in all paths not obviously only used within packet process context (nfnetlink_conntrack). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: ip_conntrack: properly use RCU API for ip_ct_protos arrayPatrick McHardy
Replace preempt_{enable,disable} based RCU by proper use of the RCU API and add missing rcu_read_lock/rcu_read_unlock calls in all paths not obviously only used within packet process context (nfnetlink_conntrack). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_nat: properly use RCU API for nf_nat_protos arrayPatrick McHardy
Replace preempt_{enable,disable} based RCU by proper use of the RCU API and add missing rcu_read_lock/rcu_read_unlock calls in paths used outside of packet processing context (nfnetlink_conntrack). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: ip_nat: properly use RCU API for ip_nat_protos arrayPatrick McHardy
Replace preempt_{enable,disable} based RCU by proper use of the RCU API and add missing rcu_read_lock/rcu_read_unlock calls in paths used outside of packet processing context (nfnetlink_conntrack). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_log: minor cleanupsPatrick McHardy
- rename nf_logging to nf_loggers since its an array of registered loggers - rename nf_log_unregister_logger() to nf_log_unregister() to make it symetrical to nf_log_register() and convert all users Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_log: switch logger registration/unregistration to mutexPatrick McHardy
The spinlock is only used in process context (register/unregister), switch to a mutex. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_log: make nf_log_unregister_pf return voidPatrick McHardy
Since the only user of nf_log_unregister_pf (nfnetlink_log) doesn't check the return value, change it to void and bail out silently when a non-existant address family is supplied. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: nf_log: use rcu_assign_pointer for RCU protected pointerPatrick McHardy
Also replace synchronize_net() calls by synchronize_rcu() since the RCU protected data is also used for sysfs. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: Switch nf_register_hook/nf_unregister_hook to mutexPatrick McHardy
The spinlock is only used in process context (register/unregister) since RCU is used for the nf_hook lists, switch to a mutex. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: Switch nf_register_afinfo/nf_unregister_afinfo to mutexPatrick McHardy
The spinlock is only used in process context (register/unregister), switch to a mutex. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: Remove unnecessary synchronize_net() in nf_register_hookPatrick McHardy
We're only adding to the list, no need to synchronize. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[NETFILTER]: Properly use RCU in nf_ct_attachPatrick McHardy
Use rcu_assign_pointer/rcu_dereference for ip_ct_attach pointer instead of self-made RCU and use rcu_read_lock to make sure the conntrack module doesn't disappear below us while calling it, since this function can be called from outside the netfilter hooks. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-12[PATCH] mark struct file_operations const 8Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] mark struct file_operations const 7Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: fix up svc_create_socket() to take a sockaddr struct ↵Chuck Lever
+ length Replace existing svc_create_socket() API to allow callers to pass addresses larger than a sockaddr_in. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: support IPv6 addresses in RPC server's UDP receive pathChuck Lever
Add support for IPv6 addresses in the RPC server's UDP receive path. [akpm@linux-foundation.org: cleanups] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Support IPv6 addresses in svc_tcp_acceptakpm@linux-foundation.org
Modify svc_tcp_accept to support connecting on IPv6 sockets. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: add a "generic" function to see if the peer uses a ↵Chuck Lever
secure port The only reason svcsock.c looks at a sockaddr's port is to check whether the remote peer is connecting from a privileged port. Refactor this check to hide processing that is specific to address format. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: teach svc_sendto() to deal with IPv6 addressesChuck Lever
CMSG_DATA comes in different sizes, depending on address family. [akpm@linux-foundation.org: remove unneeded do/while (0)] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Make rq_daddr field address-version independentChuck Lever
The rq_daddr field must support larger addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Provide room in svc_rqst for larger addressesChuck Lever
Expand the rq_addr field to allow it to contain larger addresses. Specifically, we replace a 'sockaddr_in' with a 'sockaddr_storage', then everywhere the 'sockaddr_in' was referenced, we use instead an accessor function (svc_addr_in) which safely casts the _storage to _in. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Use sockaddr_storage to store address in svc_deferred_reqChuck Lever
Sockaddr_storage will allow us to store arbitrary socket addresses in the svc_deferred_req struct. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Add a function to format the address in an svc_rqst ↵Chuck Lever
for printing There are loads of places where the RPC server assumes that the rq_addr fields contains an IPv4 address. Top among these are error and debugging messages that display the server's IP address. Let's refactor the address printing into a separate function that's smart enough to figure out the difference between IPv4 and IPv6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Don't set msg_name and msg_namelen when calling ↵Chuck Lever
sock_recvmsg Clean-up: msg_name and msg_namelen are not used by sock_recvmsg, so don't bother to set them in svc_recvfrom. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: Cache remote peer's address in svc_sockChuck Lever
The remote peer's address won't change after the socket has been accepted. We don't need to call ->getname on every incoming request. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: aplit svc_sock_enqueue out of svc_setup_socketNeilBrown
Rather than calling svc_sock_enqueue at the end of svc_setup_socket, we now call it (via svc_sock_recieved) after calling svc_setup_socket at each call site. We do this because a subsequent patch will insert some code between the two calls at one call site. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: allow creating an RPC service without registering ↵Chuck Lever
with portmapper Sometimes we need to create an RPC service but not register it with the local portmapper. NFSv4 delegation callback, for example. Change the svc_makesock() API to allow optionally creating temporary or permanent sockets, optionally registering with the local portmapper, and make it return the ephemeral port of the new socket. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] knfsd: SUNRPC: update internal API: separate pmap register and temp ↵Chuck Lever
sockets Currently in the RPC server, registering with the local portmapper and creating "permanent" sockets are tied together. Expand the internal APIs to allow these two socket characteristics to be separately specified. This will be externalized in the next patch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (45 commits) [IPV4]: Restore multipath routing after rt_next changes. [XFRM] IPV6: Fix outbound RO transformation which is broken by IPsec tunnel patch. [NET]: Reorder fields of struct dst_entry [DECNET]: Convert decnet route to use the new dst_entry 'next' pointer [IPV6]: Convert ipv6 route to use the new dst_entry 'next' pointer [IPV4]: Convert ipv4 route to use the new dst_entry 'next' pointer [NET]: Introduce union in struct dst_entry to hold 'next' pointer [DECNET]: fix misannotation of linkinfo_dn [DECNET]: FRA_{DST,SRC} are le16 for decnet [UDP]: UDP can use sk_hash to speedup lookups [NET]: Fix whitespace errors. [NET] XFRM: Fix whitespace errors. [NET] X25: Fix whitespace errors. [NET] WANROUTER: Fix whitespace errors. [NET] UNIX: Fix whitespace errors. [NET] TIPC: Fix whitespace errors. [NET] SUNRPC: Fix whitespace errors. [NET] SCTP: Fix whitespace errors. [NET] SCHED: Fix whitespace errors. [NET] RXRPC: Fix whitespace errors. ...
2007-02-11[PATCH] FRA_{DST,SRC} are le16 for decnetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().Robert P. J. Day
Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-10[IPV4]: Restore multipath routing after rt_next changes.Eric Dumazet
I forgot to test build this part of the networking code... Sorry guys. This patch renames u.rt_next to u.dst.rt_next Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[XFRM] IPV6: Fix outbound RO transformation which is broken by IPsec tunnel ↵Masahide NAKAMURA
patch. It seems to miss RO mode path by IPv6 over IPv4 IPsec tunnel patch when it changed semantics to check the mode from "xfrm[i]->props.mode != XFRM_MODE_TRANSPORT" to "xfrm[i]->props.mode == XFRM_MODE_TUNNEL" before changing address. It also makes two incline functions __xfrm6_bundle_addr_{remote,local} are used by nobody. This patch fixes it. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[DECNET]: Convert decnet route to use the new dst_entry 'next' pointerEric Dumazet
This patch removes the next pointer from 'struct dn_route.u' union, and renames u.rt_next to u.dst.dn_next. It also moves 'struct flowi' right after 'struct dst_entry' to prepare speedup lookups. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[IPV6]: Convert ipv6 route to use the new dst_entry 'next' pointerEric Dumazet
This patch removes the next pointer from 'struct rt6_info.u' union, and renames u.next to u.dst.rt6_next. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[IPV4]: Convert ipv4 route to use the new dst_entry 'next' pointerEric Dumazet
This patch removes the rt_next pointer from 'struct rtable.u' union, and renames u.rt_next to u.dst_rt_next. It also moves 'struct flowi' right after 'struct dst_entry' to prepare the gain on lookups. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[DECNET]: FRA_{DST,SRC} are le16 for decnetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[UDP]: UDP can use sk_hash to speedup lookupsEric Dumazet
In a prior patch, I introduced a sk_hash field (__sk_common.skc_hash) to let tcp lookups use one cache line per unmatched entry instead of two. We can also use sk_hash to speedup UDP part as well. We store in sk_hash the hnum value, and use sk->sk_hash (same cache line than 'next' pointer), instead of inet->num (different cache line) Note : We still have a false sharing problem for SMP machines, because sock_hold(sock) dirties the cache line containing the 'next' pointer. Not counting the udp_hash_lock rwlock. (did someone mentioned RCU ? :) ) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET]: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] XFRM: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] X25: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] WANROUTER: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] UNIX: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] TIPC: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] SUNRPC: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] SCTP: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] SCHED: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] RXRPC: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>