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2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-10[NET]: Make all initialized struct seq_operations const.Philippe De Muyter
Make all initialized struct seq_operations in net/ const Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NET]: dev_mcast: unexport dev_mc_uploadPatrick McHardy
dev_mc_add/dev_mc_delete take care of uploading the list when necessary and thats the only interface other code should use. Also remove two incorrect calls in DECnet. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-07[NETLINK]: Mark netlink policies constPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-09Fix occurrences of "the the "Michael Opdenacker
Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-03[NET]: Rework dev_base via list_head (v3)Pavel Emelianov
Cleanup of dev_base list use, with the aim to simplify making device list per-namespace. In almost every occasion, use of dev_base variable and dev->next pointer could be easily replaced by for_each_netdev loop. A few most complicated places were converted to using first_netdev()/next_netdev(). Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[RTNETLINK]: Remove unnecessary locking in dump callbacksPatrick McHardy
Since we're now holding the rtnl during the entire dump operation, we can remove additional locking for rtnl protected data. This patch does that for all simple cases (dev_base_lock for dev_base walking, RCU protection for FIB rule dumping). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: Switch cb_lock spinlock to mutex and allow to override itPatrick McHardy
Switch cb_lock to mutex and allow netlink kernel users to override it with a subsystem specific mutex for consistent locking in dump callbacks. All netlink_dump_start users have been audited not to rely on any side-effects of the previously used spinlock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Some more conversions to skb_copy_from_linear_dataArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
2007-04-25[NET] fib_rules: delay route cache flush by ip_rt_min_delayThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}Arnaldo Carvalho de Melo
To clearly state the intent of copying from linear sk_buffs, _offset being a overly long variant but interesting for the sake of saving some bytes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25[NET] fib_rules: Flush route cache after rule modificationsThomas Graf
The results of FIB rules lookups are cached in the routing cache except for IPv6 as no such cache exists. So far, it was the responsibility of the user to flush the cache after modifying any rules. This lead to many false bug reports due to misunderstanding of this concept. This patch automatically flushes the route cache after inserting or deleting a rule. Thanks to Muli Ben-Yehuda <muli@il.ibm.com> for catching a bug in the previous patch. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET] rules: Unified rules dumpingThomas Graf
Implements a unified, protocol independant rules dumping function which is capable of both, dumping a specific protocol family or all of them. This speeds up dumping as less lookups are required. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[DECNet]: Use rtnl registration interfaceThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: Use nlmsg_trim() where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: Introduce nlmsg_hdr() helperArnaldo Carvalho de Melo
For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the number of direct accesses to skb->data and for consistency with all the other cast skb member helpers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Convert skb->tail to sk_buff_data_tArnaldo Carvalho de Melo
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes on 64bit architectures, allowing us to combine the 4 bytes hole left by the layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4 64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN... :-) Many calculations that previously required that skb->{transport,network, mac}_header be first converted to a pointer now can be done directly, being meaningful as offsets or pointers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_reset_transport_header(skb)Arnaldo Carvalho de Melo
For the common, open coded 'skb->h.raw = skb->data' operation, so that we can later turn skb->h.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple cases: skb->h.raw = skb->data; skb->h.raw = {skb_push|[__]skb_pull}() The next ones will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_network_header()Arnaldo Carvalho de Melo
For the places where we need a pointer to the network header, it is still legal to touch skb->nh.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_reset_network_header(skb)Arnaldo Carvalho de Melo
For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_reset_mac_header(skb)Arnaldo Carvalho de Melo
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-25[DECNet] fib: Fix out of bound access of dn_fib_props[]Thomas Graf
Fixes a typo which caused fib_props[] to have the wrong size and makes sure the value used to index the array which is provided by userspace via netlink is checked to avoid out of bound access. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-25[NET]: Fix fib_rules compatibility breakageThomas Graf
Based upon a patch from Patrick McHardy. The fib_rules netlink attribute policy introduced in 2.6.19 broke userspace compatibilty. When specifying a rule with "from all" or "to all", iproute adds a zero byte long netlink attribute, but the policy requires all addresses to have a size equal to sizeof(struct in_addr)/sizeof(struct in6_addr), resulting in a validation error. Check attribute length of FRA_SRC/FRA_DST in the generic framework by letting the family specific rules implementation provide the length of an address. Report an error if address length is non zero but no address attribute is provided. Fix actual bug by checking address length for non-zero instead of relying on availability of attribute. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-14[PATCH] sysctl: remove the proc_dir_entry member for the sysctl tablesEric W. Biederman
It isn't needed anymore, all of the users are gone, and all of the ctl_table initializers have been converted to use explicit names of the fields they are initializing. [akpm@osdl.org: NTFS fix] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] sysctl: remove insert_at_head from register_sysctlEric W. Biederman
The semantic effect of insert_at_head is that it would allow new registered sysctl entries to override existing sysctl entries of the same name. Which is pain for caching and the proc interface never implemented. I have done an audit and discovered that none of the current users of register_sysctl care as (excpet for directories) they do not register duplicate sysctl entries. So this patch simply removes the support for overriding existing entries in the sys_sysctl interface since no one uses it or cares and it makes future enhancments harder. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Corey Minyard <minyard@acm.org> Cc: Neil Brown <neilb@suse.de> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jan Kara <jack@ucw.cz> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] sysctl: decnet: remove unnecessary insert_at_head flagEric W. Biederman
The sysctl numbers used are unique so setting the insert_at_head flag does not succeed in overriding any sysctls, and is just confusing because it doesn't. Clear the flag. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Patrick Caulfield <patrick@tykepenguin.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> 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>
2007-02-11Merge 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[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[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[NET] DECNET: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[NETLINK]: Don't BUG on undersized allocationsPatrick McHardy
Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-25[DECNET]: Handle a failure in neigh_parms_alloc (take 2)Eric W. Biederman
While enhancing the neighbour code to handle multiple network namespaces I noticed that decnet is assuming neigh_parms_alloc will allways succeed, which is clearly wrong. So handle the failure. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Steven Whitehouse <steve@chygwyn.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-10[PATCH] sysctl: remove unused "context" paramAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: David Howells <dhowells@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove kmem_cache_tChristoph Lameter
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>
2006-12-07[PATCH] slab: remove SLAB_KERNELChristoph Lameter
SLAB_KERNEL is an alias of GFP_KERNEL. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-02[RTNETLINK]: Add rtnl_put_cacheinfo() to unify some codeThomas Graf
IPv4, IPv6, and DECNet all use struct rta_cacheinfo in a similiar way, therefore rtnl_put_cacheinfo() is added to reuse code. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETLINK]: Remove unused dst_pid field in netlink_skb_parmsThomas Graf
The destination PID is passed directly to netlink_unicast() respectively netlink_multicast(). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET] address: Convert to new netlink interfaceThomas Graf
Extends the netlink interface to support the __le16 type and converts address addition, deletion and, dumping to use the new netlink interface. Fixes multiple occasions of possible illegal memory references due to not validated netlink attributes. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET] address: Rename rtmsg_ifa() to dn_ifaddr_notify()Thomas Graf
The name rtmsg_ifa is heavly overused and confusing. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET] address: Calculate accurate message size for netlink notificationsThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET]: Use kzalloc where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DECNET]: Use kmemdupArnaldo Carvalho de Melo
Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/decnet.ko.before /tmp/decnet.ko.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/decnet/dn_dev.c: dn_dev_sysctl_register | -51 1 function changed, 51 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[NET]: Conditionally use bh_lock_sock_nested in sk_receive_skbArnaldo Carvalho de Melo
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>
2006-12-02[DECNET]: Fix build regressions.David S. Miller
Spotted by Arnaldo. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETLINK]: Do precise netlink message allocations where possibleThomas Graf
Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NET] rules: Share common attribute validation policyThomas Graf
Move the attribute policy for the non-specific attributes into net/fib_rules.h and include it in the respective protocols. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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