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* [PATCH] Define __raw_get_cpu_var and use itPaul Mackerras2006-06-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | There are several instances of per_cpu(foo, raw_smp_processor_id()), which is semantically equivalent to __get_cpu_var(foo) but without the warning that smp_processor_id() can give if CONFIG_DEBUG_PREEMPT is enabled. For those architectures with optimized per-cpu implementations, namely ia64, powerpc, s390, sparc64 and x86_64, per_cpu() turns into more and slower code than __get_cpu_var(), so it would be preferable to use __get_cpu_var on those platforms. This defines a __raw_get_cpu_var(x) macro which turns into per_cpu(x, raw_smp_processor_id()) on architectures that use the generic per-cpu implementation, and turns into __get_cpu_var(x) on the architectures that have an optimized per-cpu implementation. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove for_each_cpu()Andrew Morton2006-06-251-1/+1
| | | | | | | | Convert a few stragglers over to for_each_possible_cpu(), remove for_each_cpu(). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-06-2316-85/+602
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: Require CAP_NET_ADMIN to create tuntap devices. [NET]: fix net-core kernel-doc [TCP]: Move inclusion of <linux/dmaengine.h> to correct place in <linux/tcp.h> [IPSEC]: Handle GSO packets [NET]: Added GSO toggle [NET]: Add software TSOv4 [NET]: Add generic segmentation offload [NET]: Merge TSO/UFO fields in sk_buff [NET]: Prevent transmission after dev_deactivate [IPV6] ADDRCONF: Fix default source address selection without CONFIG_IPV6_PRIVACY [IPV6]: Fix source address selection. [NET]: Avoid allocating skb in skb_pad
| * [NET]: fix net-core kernel-docRandy Dunlap2006-06-231-2/+2
| | | | | | | | | | | | | | | | | | | | 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>
| * [IPSEC]: Handle GSO packetsHerbert Xu2006-06-232-10/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch segments GSO packets received by the IPsec stack. This can happen when a NIC driver injects GSO packets into the stack which are then forwarded to another host. The primary application of this is going to be Xen where its backend driver may inject GSO packets into dom0. Of course this also can be used by other virtualisation schemes such as VMWare or UML since the tap device could be modified to inject GSO packets received through splice. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Added GSO toggleHerbert Xu2006-06-232-6/+40
| | | | | | | | | | | | | | | | This patch adds a generic segmentation offload toggle that can be turned on/off for each net device. For now it only supports in TCPv4. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Add software TSOv4Herbert Xu2006-06-233-0/+239
| | | | | | | | | | | | | | This patch adds the GSO implementation for IPv4 TCP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Add generic segmentation offloadHerbert Xu2006-06-232-10/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the infrastructure for generic segmentation offload. The idea is to tap into the potential savings of TSO without hardware support by postponing the allocation of segmented skb's until just before the entry point into the NIC driver. The same structure can be used to support software IPv6 TSO, as well as UFO and segmentation offload for other relevant protocols, e.g., DCCP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Merge TSO/UFO fields in sk_buffHerbert Xu2006-06-238-42/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not going to scale if we add any more segmentation methods (e.g., DCCP). So let's merge them. They were used to tell the protocol of a packet. This function has been subsumed by the new gso_type field. This is essentially a set of netdev feature bits (shifted by 16 bits) that are required to process a specific skb. As such it's easy to tell whether a given device can process a GSO skb: you just have to and the gso_type field and the netdev's features field. I've made gso_type a conjunction. The idea is that you have a base type (e.g., SKB_GSO_TCPV4) that can be modified further to support new features. For example, if we add a hardware TSO type that supports ECN, they would declare NETIF_F_TSO | NETIF_F_TSO_ECN. All TSO packets with CWR set would have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO packets would be SKB_GSO_TCPV4. This means that only the CWR packets need to be emulated in software. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Prevent transmission after dev_deactivateHerbert Xu2006-06-232-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dev_deactivate function has bit-rotted since the introduction of lockless drivers. In particular, the spin_unlock_wait call at the end has no effect on the xmit routine of lockless drivers. With a little bit of work, we can make it much more useful by providing the guarantee that when it returns, no more calls to the xmit routine of the underlying driver will be made. The idea is simple. There are two entry points in to the xmit routine. The first comes from dev_queue_xmit. That one is easily stopped by using synchronize_rcu. This works because we set the qdisc to noop_qdisc before the synchronize_rcu call. That in turn causes all subsequent packets sent to dev_queue_xmit to be dropped. The synchronize_rcu call also ensures all outstanding calls leave their critical section. The other entry point is from qdisc_run. Since we now have a bit that indicates whether it's running, all we have to do is to wait until the bit is off. I've removed the loop to wait for __LINK_STATE_SCHED to clear. This is useless because netif_wake_queue can cause it to be set again. It is also harmless because we've disarmed qdisc_run. I've also removed the spin_unlock_wait on xmit_lock because its only purpose of making sure that all outstanding xmit_lock holders have exited is also given by dev_watchdog_down. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6] ADDRCONF: Fix default source address selection without ↵YOSHIFUJI Hideaki2006-06-231-0/+3
| | | | | | | | | | | | | | | | | | | | CONFIG_IPV6_PRIVACY We need to update hiscore.rule even if we don't enable CONFIG_IPV6_PRIVACY, because we have more less significant rule; longest match. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Fix source address selection.Łukasz Stelmach2006-06-231-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | Two additional labels (RFC 3484, sec. 10.3) for IPv6 addreses are defined to make a distinction between global unicast addresses and Unique Local Addresses (fc00::/7, RFC 4193) and Teredo (2001::/32, RFC 4380). It is necessary to avoid attempts of connection that would either fail (eg. fec0:: to 2001:feed::) or be sub-optimal (2001:0:: to 2001:feed::). Signed-off-by: Łukasz Stelmach <stlman@poczta.fm> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Avoid allocating skb in skb_padHerbert Xu2006-06-231-10/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First of all it is unnecessary to allocate a new skb in skb_pad since the existing one is not shared. More importantly, our hard_start_xmit interface does not allow a new skb to be allocated since that breaks requeueing. This patch uses pskb_expand_head to expand the existing skb and linearize it if needed. Actually, someone should sift through every instance of skb_pad on a non-linear skb as they do not fit the reasons why this was originally created. Incidentally, this fixes a minor bug when the skb is cloned (tcpdump, TCP, etc.). As it is skb_pad will simply write over a cloned skb. Because of the position of the write it is unlikely to cause problems but still it's best if we don't do it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] list: use list_replace_init() instead of list_splice_init()Oleg Nesterov2006-06-232-6/+5
| | | | | | | | | | | | | | | | | | | | list_splice_init(list, head) does unneeded job if it is known that list_empty(head) == 1. We can use list_replace_init() instead. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] clean up default value of IP_DCCP_ACKVECJean-Luc Leger2006-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | Default values for boolean and tristate options can only be 'y', 'm' or 'n'. This patch removes wrong default for IP_DCCP_ACKVEC. Signed-off-by: Jean-Luc Leger <jean-luc.leger@dspnet.fr.eu.org> Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] VFS: Permit filesystem to override root dentry on mountDavid Howells2006-06-232-6/+7
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the get_sb() filesystem operation to take an extra argument that permits the VFS to pass in the target vfsmount that defines the mountpoint. The filesystem is then required to manually set the superblock and root dentry pointers. For most filesystems, this should be done with simple_set_mnt() which will set the superblock pointer and then set the root dentry to the superblock's s_root (as per the old default behaviour). The get_sb() op now returns an integer as there's now no need to return the superblock pointer. This patch permits a superblock to be implicitly shared amongst several mount points, such as can be done with NFS to avoid potential inode aliasing. In such a case, simple_set_mnt() would not be called, and instead the mnt_root and mnt_sb would be set directly. The patch also makes the following changes: (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount pointer argument and return an integer, so most filesystems have to change very little. (*) If one of the convenience function is not used, then get_sb() should normally call simple_set_mnt() to instantiate the vfsmount. This will always return 0, and so can be tail-called from get_sb(). (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the dcache upon superblock destruction rather than shrink_dcache_anon(). This is required because the superblock may now have multiple trees that aren't actually bound to s_root, but that still need to be cleaned up. The currently called functions assume that the whole tree is rooted at s_root, and that anonymous dentries are not the roots of trees which results in dentries being left unculled. However, with the way NFS superblock sharing are currently set to be implemented, these assumptions are violated: the root of the filesystem is simply a dummy dentry and inode (the real inode for '/' may well be inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries with child trees. [*] Anonymous until discovered from another tree. (*) The documentation has been adjusted, including the additional bit of changing ext2_* into foo_* in the documentation. [akpm@osdl.org: convert ipath_fs, do other stuff] Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'master' into upstreamJeff Garzik2006-06-225-23/+19
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| * [ATM]: fix broken uses of NIPQUAD in net/atmAl Viro2006-06-202-18/+7
| | | | | | | | | | | | | | | | NIPQUAD expects an l-value of type __be32, _NOT_ a pointer to __be32. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: sctp_unpack_cookie() fixAl Viro2006-06-201-2/+2
| | | | | | | | | | | | | | | | sizeof(pointer) != sizeof(array)... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Prevent multiple qdisc runsHerbert Xu2006-06-191-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Having two or more qdisc_run's contend against each other is bad because it can induce packet reordering if the packets have to be requeued. It appears that this is an unintended consequence of relinquinshing the queue lock while transmitting. That in turn is needed for devices that spend a lot of time in their transmit routine. There are no advantages to be had as devices with queues are inherently single-threaded (the loopback device is not but then it doesn't have a queue). Even if you were to add a queue to a parallel virtual device (e.g., bolt a tbf filter in front of an ipip tunnel device), you would still want to process the queue in sequence to ensure that the packets are ordered correctly. The solution here is to steal a bit from net_device to prevent this. BTW, as qdisc_restart is no longer used by anyone as a module inside the kernel (IIRC it used to with netif_wake_queue), I have not exported the new __qdisc_run function. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER]: xt_sctp: fix endless loop caused by 0 chunk lengthPatrick McHardy2006-06-191-1/+1
| | | | | | | | | | | | | | | | Fix endless loop in the SCTP match similar to those already fixed in the SCTP conntrack helper (was CVE-2006-1527). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'upstream' of ↵Jeff Garzik2006-06-201-1/+1
|\ \ | |/ |/| | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream
| * [PATCH] wireless: correct dump of WPA IELarry Finger2006-06-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | In net/ieee80211/softmac/ieee80211softmac_wx.c, there is a bug that prints extended sign information whenever the byte value exceeds 0x7f. The following patch changes the printk to use a u8 cast to limit the output to 2 digits. This bug was first noticed by Dan Williams <dcbw@redhat.com>. This patch applies to the current master branch of the Linville tree. Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * Merge branch 'from-linus' into upstreamJohn W. Linville2006-06-139-46/+17
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* | \ Merge branch 'for-linus' of ↵Linus Torvalds2006-06-191-0/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (46 commits) IB/uverbs: Don't serialize with ib_uverbs_idr_mutex IB/mthca: Make all device methods truly reentrant IB/mthca: Fix memory leak on modify_qp error paths IB/uverbs: Factor out common idr code IB/uverbs: Don't decrement usecnt on error paths IB/uverbs: Release lock on error path IB/cm: Use address handle helpers IB/sa: Add ib_init_ah_from_path() IB: Add ib_init_ah_from_wc() IB/ucm: Get rid of duplicate P_Key parameter IB/srp: Factor out common request reset code IB/srp: Support SRP rev. 10 targets [SCSI] srp.h: Add I/O Class values IB/fmr: Use device's max_map_map_per_fmr attribute in FMR pool. IB/mthca: Fill in max_map_per_fmr device attribute IB/ipath: Add client reregister event generation IB/mthca: Add client reregister event generation IB: Move struct port_info from ipath to <rdma/ib_smi.h> IPoIB: Handle client reregister events IB: Add client reregister event type ...
| * | | [NET]: Export ip_dev_find()Sean Hefty2006-06-171-0/+1
| | |/ | |/| | | | | | | | | | | | | | | | Export ip_dev_find() to allow locating a net_device given an IP address. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-06-19132-1846/+5268
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (109 commits) [ETHTOOL]: Fix UFO typo [SCTP]: Fix persistent slowdown in sctp when a gap ack consumes rx buffer. [SCTP]: Send only 1 window update SACK per message. [SCTP]: Don't do CRC32C checksum over loopback. [SCTP] Reset rtt_in_progress for the chunk when processing its sack. [SCTP]: Reject sctp packets with broadcast addresses. [SCTP]: Limit association max_retrans setting in setsockopt. [PFKEYV2]: Fix inconsistent typing in struct sadb_x_kmprivate. [IPV6]: Sum real space for RTAs. [IRDA]: Use put_unaligned() in irlmp_do_discovery(). [BRIDGE]: Add support for NETIF_F_HW_CSUM devices [NET]: Add NETIF_F_GEN_CSUM and NETIF_F_ALL_CSUM [TG3]: Convert to non-LLTX [TG3]: Remove unnecessary tx_lock [TCP]: Add tcp_slow_start_after_idle sysctl. [BNX2]: Update version and reldate [BNX2]: Use CPU native page size [BNX2]: Use compressed firmware [BNX2]: Add firmware decompression [BNX2]: Allow WoL settings on new 5708 chips ... Manual fixup for conflict in drivers/net/tulip/winbond-840.c
| * | | [ETHTOOL]: Fix UFO typoHerbert Xu2006-06-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function ethtool_get_ufo was referring to ETHTOOL_GTSO instead of ETHTOOL_GUFO. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Fix persistent slowdown in sctp when a gap ack consumes rx buffer.Neil Horman2006-06-171-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the event that our entire receive buffer is full with a series of chunks that represent a single gap-ack, and then we accept a chunk (or chunks) that fill in the gap between the ctsn and the first gap, we renege chunks from the end of the buffer, which effectively does nothing but move our gap to the end of our received tsn stream. This does little but move our missing tsns down stream a little, and, if the sender is sending sufficiently large retransmit frames, the result is a perpetual slowdown which can never be recovered from, since the only chunk that can be accepted to allow progress in the tsn stream necessitates that a new gap be created to make room for it. This leads to a constant need for retransmits, and subsequent receiver stalls. The fix I've come up with is to deliver the frame without reneging if we have a full receive buffer and the receiving sockets sk_receive_queue is empty(indicating that the receive buffer is being blocked by a missing tsn). Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Send only 1 window update SACK per message.Tsutomu Fujii2006-06-171-2/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now, every time we increase our rwnd by more then MTU bytes, we trigger a SACK. When processing large messages, this will generate a SACK for almost every other SCTP fragment. However since we are freeing the entire message at the same time, we might as well collapse the SACK generation to 1. Signed-off-by: Tsutomu Fujii <t-fujii@nb.jp.nec.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Don't do CRC32C checksum over loopback.Sridhar Samudrala2006-06-172-22/+29
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP] Reset rtt_in_progress for the chunk when processing its sack.Vlad Yasevich2006-06-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Reject sctp packets with broadcast addresses.Vlad Yasevich2006-06-174-5/+14
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SCTP]: Limit association max_retrans setting in setsockopt.Vlad Yasevich2006-06-171-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using ASSOCINFO socket option, we need to limit the number of maximum association retransmissions to be no greater than the sum of all the path retransmissions. This is specified in Section 7.1.2 of the SCTP socket API draft. However, we only do this if the association has multiple paths. If there is only one path, the protocol stack will use the assoc_max_retrans setting when trying to retransmit packets. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPV6]: Sum real space for RTAs.YOSHIFUJI Hideaki2006-06-171-4/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes RTNLGRP_IPV6_IFINFO netlink notifications. Issue pointed out by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IRDA]: Use put_unaligned() in irlmp_do_discovery().David S. Miller2006-06-171-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | irda_device_info->hints[] is byte aligned but is being accessed as a u16 Based upon a patch by Luke Yang <luke.adi@gmail.com>. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [BRIDGE]: Add support for NETIF_F_HW_CSUM devicesHerbert Xu2006-06-172-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As it is the bridge will only ever declare NETIF_F_IP_CSUM even if all its constituent devices support NETIF_F_HW_CSUM. This patch fixes this by supporting the first one out of NETIF_F_NO_CSUM, NETIF_F_HW_CSUM, and NETIF_F_IP_CSUM that is supported by all constituent devices. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: Add NETIF_F_GEN_CSUM and NETIF_F_ALL_CSUMHerbert Xu2006-06-175-19/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current stack treats NETIF_F_HW_CSUM and NETIF_F_NO_CSUM identically so we test for them in quite a few places. For the sake of brevity, I'm adding the macro NETIF_F_GEN_CSUM for these two. We also test the disjunct of NETIF_F_IP_CSUM and the other two in various places, for that purpose I've added NETIF_F_ALL_CSUM. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [TCP]: Add tcp_slow_start_after_idle sysctl.David S. Miller2006-06-172-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A lot of people have asked for a way to disable tcp_cwnd_restart(), and it seems reasonable to add a sysctl to do that. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [TCP] Westwood: reset RTT min after FRTOLuca De Cicco2006-06-171-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RTT_min is updated each time a timeout event occurs in order to cope with hard handovers in wireless scenarios such as UMTS. Signed-off-by: Luca De Cicco <ldecicco@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@dxpl.pdx.osdl.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [TCP] Westwood: bandwidth filter startupLuca De Cicco2006-06-171-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bandwidth estimate filter is now initialized with the first sample in order to have better performances in the case of small file transfers. Signed-off-by: Luca De Cicco <ldecicco@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@dxpl.pdx.osdl.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [TCP] Westwood: comment fixesLuca De Cicco2006-06-171-4/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanup some comments and add more references Signed-off-by: Luca De Cicco <ldecicco@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@dxpl.pdx.osdl.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [TCP] Westwood: fix first sampleStephen Hemminger2006-06-171-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Need to update send sequence number tracking after first ack. Rework of patch from Luca De Cicco. Signed-off-by: Stephen Hemminger <shemminger@dxpl.pdx.osdl.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: net.ipv4.ip_autoconfig sysctl removalStephen Hemminger2006-06-171-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The sysctl net.ipv4.ip_autoconfig is a legacy value that is not used. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [IPX]: Endian bug in ipxrtr_route_packet()Alexey Dobriyan2006-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: Warn in __skb_trim if skb is pagedHerbert Xu2006-06-171-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's better to warn and fail rather than rarely triggering BUG on paths that incorrectly call skb_trim/__skb_trim on a non-linear skb. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: skb_trim auditHerbert Xu2006-06-172-18/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I found a few more spots where pskb_trim_rcsum could be used but were not. This patch changes them to use it. Also, sk_filter can get paged skb data. Therefore we must use pskb_trim instead of skb_trim. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: Clean up skb_linearizeHerbert Xu2006-06-175-81/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The linearisation operation doesn't need to be super-optimised. So we can replace __skb_linearize with __pskb_pull_tail which does the same thing but is more general. Also, most users of skb_linearize end up testing whether the skb is linear or not so it helps to make skb_linearize do just that. Some callers of skb_linearize also use it to copy cloned data, so it's useful to have a new function skb_linearize_cow to copy the data if it's either non-linear or cloned. Last but not least, I've removed the gfp argument since nobody uses it anymore. If it's ever needed we can easily add it back. Misc bugs fixed by this patch: * via-velocity error handling (also, no SG => no frags) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NET]: Add netif_tx_lockHerbert Xu2006-06-177-53/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various drivers use xmit_lock internally to synchronise with their transmission routines. They do so without setting xmit_lock_owner. This is fine as long as netpoll is not in use. With netpoll it is possible for deadlocks to occur if xmit_lock_owner isn't set. This is because if a printk occurs while xmit_lock is held and xmit_lock_owner is not set can cause netpoll to attempt to take xmit_lock recursively. While it is possible to resolve this by getting netpoll to use trylock, it is suboptimal because netpoll's sole objective is to maximise the chance of getting the printk out on the wire. So delaying or dropping the message is to be avoided as much as possible. So the only alternative is to always set xmit_lock_owner. The following patch does this by introducing the netif_tx_lock family of functions that take care of setting/unsetting xmit_lock_owner. I renamed xmit_lock to _xmit_lock to indicate that it should not be used directly. I didn't provide irq versions of the netif_tx_lock functions since xmit_lock is meant to be a BH-disabling lock. This is pretty much a straight text substitution except for a small bug fix in winbond. It currently uses netif_stop_queue/spin_unlock_wait to stop transmission. This is unsafe as an IRQ can potentially wake up the queue. So it is safer to use netif_tx_disable. The hamradio bits used spin_lock_irq but it is unnecessary as xmit_lock must never be taken in an IRQ handler. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETFILTER]: hashlimit match: fix random initializationPatrick McHardy2006-06-171-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hashlimit does: if (!ht->rnd) get_random_bytes(&ht->rnd, 4); ignoring that 0 is also a valid random number. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.1 at 2024-12-26 10:07:35 +0000