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* [IA64] fix nested_dtlb_miss handler for hugetlb addressKen Chen2005-06-21
| | | | | | | | | | | | | | | | The nested_dtlb_miss handler currently does not handle fault from hugetlb address correctly. It walks the page table assuming PAGE_SIZE. Thus when taking a fault triggered from hugetlb address, it would not calculate the pgd/pmd/pte address correctly and thus result an incorrect invocation of ia64_do_page_fault(). In there, kernel will signal SIGBUS and application dies (The faulting address is perfectly legal and we have a valid pte for the corresponding user hugetlb address as well). This patch fix the described kernel bug. Since nested_dtlb_miss is a rare event and a slow path anyway, I'm making the change without #ifdef CONFIG_HUGETLB_PAGE for code readability. Tony, please apply. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] printk needs KERN_INFO arch/ia64/kernel/smp.cChristophe Lucas2005-06-21
| | | | | | | | printk() calls should include appropriate KERN_* constant. Signed-off-by: Christophe Lucas <clucas@rotomalug.org> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] enable SGI simulator for generic kernelsGreg Edwards2005-06-21
| | | | | | | | | | Allow the SGI simulator (medusa) to work on generic kernels. There is no inherent dependency on an sn2-specific kernel. Boot tested on Altix, medusa and HP rx2600. Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Refresh tiger_defconfigTony Luck2005-06-21
| | | | Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] refresh arch/ia64/defconfigGreg Edwards2005-06-21
| | | | | | | | | | | | | | | | | | | | | | Refresh arch/ia64/defconfig, as it was getting a bit stale. The only manual changes I made were: CONFIG_SCSI_SATA=y needed for some Altix base I/O cards CONFIG_SCSI_SATA_VITESSE=y CONFIG_DM_MULTIPATH=m the rest are already modules CONFIG_FUSION_SPI=y new driver breakout CONFIG_FUSION_FC=m CONFIG_SGI_TIOCX=y enable some other SGI drivers CONFIG_SGI_MBCS=m CONFIG_AGP_SGI_TIOCA=m Boot tested on Altix, HP rx2600 and Intel Tiger Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Auto merge with /home/aegl/GIT/linusTony Luck2005-06-20
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| * Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-06-19
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| | * Merge with ../linux-2.6-smpRussell King2005-06-19
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| | | * [PATCH] ARM SMP: Add missed files from Integrator/CP platformRussell King2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | Add missed new files from basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * [PATCH] ARM SMP: Add basic support Integrator/CP platformRussell King2005-06-18
| | | | | | | | | | | | | | | | | | | | | | | | Add basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * [PATCH] ARM SMP: Add support for startup of secondary processorsRussell King2005-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a temporary page table to startup secondary processors. This page table must have a 1:1 virtual/physical mapping for the kernel in addition to the standard mappings to ensure that the secondary CPU can enable its MMU safely. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [PATCH] ARM SMP: Fix PXA/SA11x0 suspend resume crashRussell King2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to re-initialise the stack pointers for undefined, IRQ and abort mode handlers whenever we resume. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [TCP]: Fix sysctl_tcp_low_latencyDavid S. Miller2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When enabled, this should disable UCOPY prequeue'ing altogether, but it does not due to a missing test. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV4]: [4/4] signed vs unsigned cleanup in net/ipv4/raw.cJesper Juhl2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the type of the third parameter 'length' of the raw_send_hdrinc() function from 'int' to 'size_t'. This makes sense since this function is only ever called from one location, and the value passed as the third parameter in that location is itself of type size_t, so this makes the recieving functions parameter type match. Also, inside raw_send_hdrinc() the 'length' variable is used in comparisons with unsigned values and passed as parameter to functions expecting unsigned values (it's used in a single comparison with a signed value, but that one can never actually be negative so the patch also casts that one to size_t to stop gcc worrying, and it is passed in a single instance to memcpy_fromiovecend() which expects a signed int, but as far as I can see that's not a problem since the value of 'length' shouldn't ever exceed the value of a signed int). Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV4]: [3/4] signed vs unsigned cleanup in net/ipv4/raw.cJesper Juhl2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the type of the local variable 'i' in raw_probe_proto_opt() from 'int' to 'unsigned int'. The only use of 'i' in this function is as a counter in a for() loop and subsequent index into the msg->msg_iov[] array. Since 'i' is compared in a loop to the unsigned variable msg->msg_iovlen gcc -W generates this warning : net/ipv4/raw.c:340: warning: comparison between signed and unsigned Changing 'i' to unsigned silences this warning and is safe since the array index can never be negative anyway, so unsigned int is the logical type to use for 'i' and also enables a larger msg_iov[] array (but I don't know if that will ever matter). Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV4]: [2/4] signed vs unsigned cleanup in net/ipv4/raw.cJesper Juhl2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch gets rid of the following gcc -W warning in net/ipv4/raw.c : net/ipv4/raw.c:387: warning: comparison of unsigned expression < 0 is always false Since 'len' is of type size_t it is unsigned and can thus never be <0, and since this is obvious from the function declaration just a few lines above I think it's ok to remove the pointless check for len<0. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV4]: [1/4] signed vs unsigned cleanup in net/ipv4/raw.cJesper Juhl2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch silences these two gcc -W warnings in net/ipv4/raw.c : net/ipv4/raw.c:517: warning: signed and unsigned type in conditional expression net/ipv4/raw.c:613: warning: signed and unsigned type in conditional expression It doesn't change the behaviour of the code, simply writes the conditional expression with plain 'if()' syntax instead of '? :' , but since this breaks it into sepperate statements gcc no longer complains about having both a signed and unsigned value in the same conditional expression. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: noop/noqueue qdisc style cleanupsThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Cleanup pfifo_fast qdisc and remove unnecessary codeThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removes the skb trimming code which is not needed since we never touch the skb upon failure. Removes unnecessary initializers, and simplifies the code a bit. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Add and use prio2list() in the pfifo_fast qdiscThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | prio2list() returns the relevant sk_buff_head for the band specified by the priority for a given skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Transform pfifo_fast to use generic queue management interfaceThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Gives pfifo_fast a byte based backlog. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Cleanup fifo qdisc and remove unnecessary codeThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removes the skb trimming code which is not needed since we never touch the skb upon failure. Removes unnecessary includes, initializers, and simplifies the code a bit. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Transform fifo qdisc to use generic queue management interfaceThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The simplicity of the fifo qdisc allows several qdisc operations to be redirected to the relevant queue management function directly. Saves a lot of code lines and gives the pfifo a byte based backlog. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Generic queue management interface for qdiscs using internal ↵Thomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | skb queues Implements an interface to be used by leaf qdiscs maintaining an internal skb queue. The interface maintains a backlog in bytes additionaly to the skb_queue_len() maintained by the queue itself. Relevant statistics get incremented automatically. Every function comes in two variants, one assuming Qdisc->q is used as queue and the second taking a sk_buff_head as argument. Be aware that, if you use multiple queues, you still have to maintain the Qdisc->q.qlen counter yourself. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Replace spin_lock_irqsave with spin_lock_bhHerbert Xu2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces the spin_lock_irqsave call on the receive queue lock in SCTP with spin_lock_bh. Despite the proliferation of spin_lock_irqsave calls in this stack, it is only entered from the IPv4/IPv6 stack and user space. That is, it is never entered from hardirq context. The call in question is only called from recvmsg which means that IRQs aren't disabled. Therefore it is safe to replace it with spin_lock_bh. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bhHerbert Xu2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In light of my recent patch to net/ipv4/udp.c that replaced the spin_lock_irq calls on the receive queue lock with spin_lock_bh, here is a similar patch for all other occurences of spin_lock_irq on receive/error queue locks in IPv4 and IPv6. In these stacks, we know that they can only be entered from user or softirq context. Therefore it's safe to disable BH only. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Set correct pid for ioctl originating netlink eventsJamal Hadi Salim2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch ensures that netlink events created as a result of programns using ioctls (such as ifconfig, route etc) contains the correct PID of those events. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Explicit typingJamal Hadi Salim2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts "unsigned flags" to use more explict types like u16 instead and incrementally introduces NLMSG_NEW(). Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [DECNET]: Remove unnecessary initilization of unused variable entriesThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was supposed to be part of the neighbour tables related patchset but apparently got lost. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPSEC]: Add XFRMA_SA/XFRMA_POLICY for delete notificationHerbert Xu2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the format of the XFRM_MSG_DELSA and XFRM_MSG_DELPOLICY notification so that the main message sent is of the same format as that received by the kernel if the original message was via netlink. This also means that we won't lose the byid information carried in km_event. Since this user interface is introduced by Jamal's patch we can still afford to change it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Correctly set NLM_F_MULTI without checking the pidJamal Hadi Salim2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch rectifies some rtnetlink message builders that derive the flags from the pid. It is now explicit like the other cases which get it right. Also fixes half a dozen dumpers which did not set NLM_F_MULTI at all. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Introduce NLMSG_NEW macro to better handle netlink flagsThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduces a new macro NLMSG_NEW which extends NLMSG_PUT but takes a flags argument. NLMSG_PUT stays there for compatibility but now calls NLMSG_NEW with flags == 0. NLMSG_PUT_ANSWER is renamed to NLMSG_NEW_ANSWER which now also takes a flags argument. Also converts the users of NLMSG_PUT_ANSWER to use NLMSG_NEW_ANSWER and fixes the two direct users of __nlmsg_put to either provide the flags or use NLMSG_NEW(_ANSWER). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Logic simplifications and codingstyle/whitespace cleanupsThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Make dsmark use the new dumping macrosThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PKT_SCHED]: Fix dsmark to apply changes consistentThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes dsmark to do all configuration sanity checks first and only apply the changes if all of them can be applied without any errors. Also fixes the weak sanity checks for DSMARK_VALUE and DSMASK_MASK. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [RTNETLINK]: Add RTA_(PUT|GET) shortcuts for u8, u16, and flagThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NEIGH]: Fix use of uninitialized variable when trimming in neightbl_fill_parmsThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Kill bogus NLMSG_SET_MULTIPART uses.Thomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Fix RTA_NEST_CANCEL().Thomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Only skb_trim() if 'start' is non-NULL. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NEIGHBOUR]: Remove unused fields in struct neigh_parms and neigh_tableThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: Neighbour table configuration and statistics via rtnetlinkThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To retrieve the neighbour tables send RTM_GETNEIGHTBL with the NLM_F_DUMP flag set. Every neighbour table configuration is spread over multiple messages to avoid running into message size limits on systems with many interfaces. The first message in the sequence transports all not device specific data such as statistics, configuration, and the default parameter set. This message is followed by 0..n messages carrying device specific parameter sets. Although the ordering should be sufficient, NDTA_NAME can be used to identify sequences. The initial message can be identified by checking for NDTA_CONFIG. The device specific messages do not contain this TLV but have NDTPA_IFINDEX set to the corresponding interface index. To change neighbour table attributes, send RTM_SETNEIGHTBL with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked otherwise. Device specific parameter sets can be changed by setting NDTPA_IFINDEX to the interface index of the corresponding device. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK] Routing attribute related shortcutsThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RTA_GET_U(32|64)(tlv) Assumes TLV is a u32/u64 field and returns its value. RTA_GET_[M]SECS(tlv) Assumes TLV is a u64 and transports jiffies converted to seconds or milliseconds and returns its value. RTA_PUT_U(32|64)(skb, type, value) Appends %value as fixed u32/u64 to %skb as TLV %type. RTA_PUT_[M]SECS(skb, type, jiffies) Converts %jiffies to secs/msecs and appends it as u64 to %skb as TLV %type. RTA_PUT_STRING(skb, type, string) Appends %NUL terminated %string to %skb as TLV %type. RTA_NEST(skb, type) Starts a nested TLV %type and returns the nesting handle. RTA_NEST_END(skb, nesting_handle) Finishes the nested TLV %nesting_handle, must be called symmetric to RTA_NEST(). Returns skb->len RTA_NEST_CANCEL(skb, nesting_handle) Cancel the nested TLV %nesting_handle and trim nested TLV from skb again, returns -1. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETLINK]: New message building macrosThomas Graf2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NLMSG_PUT_ANSWER(skb, nlcb, type, length) Start a new netlink message as answer to a request, returns the message header. NLMSG_END(skb, nlh) End a netlink message, fixes total message length, returns skb->len. NLMSG_CANCEL(skb, nlh) Cancel the building process and trim whole message from skb again, returns -1. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: Move sysctl_max_syn_backlog into request_sock.cDavid S. Miller2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the CONFIG_INET=n build failure noticed by Andrew Morton. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET] rename struct tcp_listen_opt to struct listen_sockArnaldo Carvalho de Melo2005-06-19
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET] Generalise tcp_listen_optArnaldo Carvalho de Melo2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This chunks out the accept_queue and tcp_listen_opt code and moves them to net/core/request_sock.c and include/net/request_sock.h, to make it useful for other transport protocols, DCCP being the first one to use it. Next patches will rename tcp_listen_opt to accept_sock and remove the inline tcp functions that just call a reqsk_queue_ function. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET] Rename open_request to request_sockArnaldo Carvalho de Melo2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ok, this one just renames some stuff to have a better namespace and to dissassociate it from TCP: struct open_request -> struct request_sock tcp_openreq_alloc -> reqsk_alloc tcp_openreq_free -> reqsk_free tcp_openreq_fastfree -> __reqsk_free With this most of the infrastructure closely resembles a struct sock methods subset. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET] Generalise TCP's struct open_request minisock infrastructureArnaldo Carvalho de Melo2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kept this first changeset minimal, without changing existing names to ease peer review. Basicaly tcp_openreq_alloc now receives the or_calltable, that in turn has two new members: ->slab, that replaces tcp_openreq_cachep ->obj_size, to inform the size of the openreq descendant for a specific protocol The protocol specific fields in struct open_request were moved to a class hierarchy, with the things that are common to all connection oriented PF_INET protocols in struct inet_request_sock, the TCP ones in tcp_request_sock, that is an inet_request_sock, that is an open_request. I.e. this uses the same approach used for the struct sock class hierarchy, with sk_prot indicating if the protocol wants to use the open_request infrastructure by filling in sk_prot->rsk_prot with an or_calltable. Results? Performance is improved and TCP v4 now uses only 64 bytes per open request minisock, down from 96 without this patch :-) Next changeset will rename some of the structs, fields and functions mentioned above, struct or_calltable is way unclear, better name it struct request_sock_ops, s/struct open_request/struct request_sock/g, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SLAB] Introduce kmem_cache_nameArnaldo Carvalho de Melo2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is for use with slab users that pass a dynamically allocated slab name in kmem_cache_create, so that before destroying the slab one can retrieve the name and free its memory. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPSEC] Use NLMSG_LENGTH in xfrm_exp_state_notifyJamal Hadi Salim2005-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Small fixup to use netlink macros instead of hardcoding. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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