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2011-04-14NET: AX.25, NETROM, ROSE: Remove SOCK_DEBUG callsRalf Baechle
Nobody alive seems to recall when they last were useful. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-28rose: Add length checks to CALL_REQUEST parsingBen Hutchings
Define some constant offsets for CALL_REQUEST based on the description at <http://www.techfest.com/networking/wan/x25plp.htm> and the definition of ROSE as using 10-digit (5-byte) addresses. Use them consistently. Validate all implicit and explicit facilities lengths. Validate the address length byte rather than either trusting or assuming its value. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-14ROSE: AX25: finding routes simplificationBernard Pidoux
With previous patch, rose_get_neigh() routine investigates the full list of neighbor nodes until it finds or not an already connected node whether it is called locally or through a level 3 transit frame. If no routes are opened through an adjacent connected node then a classical connect request is attempted. Then there is no more reason for an extra loop such as the one removed by this patch. Signed-off-by: Bernard Pidoux <f6bvp@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-20rose: Fix signedness issues wrt. digi count.David S. Miller
Just use explicit casts, since we really can't change the types of structures exported to userspace which have been around for 15 years or so. Reported-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-20net: sk_sleep() helperEric Dumazet
Define a new function to return the waitqueue of a "struct sock". static inline wait_queue_head_t *sk_sleep(struct sock *sk) { return sk->sk_sleep; } Change all read occurrences of sk_sleep by a call to this function. Needed for a future RCU conversion. sk_sleep wont be a field directly available. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-02-10net: rose: use seq_hlist_foo() helpersLi Zefan
Simplify seq_file code. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-25net: use net_eq to compare netsOctavian Purdila
Generated with the following semantic patch @@ struct net *n1; struct net *n2; @@ - n1 == n2 + net_eq(n1, n2) @@ struct net *n1; struct net *n2; @@ - n1 != n2 + !net_eq(n1, n2) applied over {include,net,drivers/net}. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06net: pass kern to net_proto_family create functionEric Paris
The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-07net: mark net_proto_ops as constStephen Hemminger
All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30net: Make setsockopt() optlen be unsigned.David S. Miller
This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15net: constify remaining proto_opsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06rose: Fix rose_getname() leakEric Dumazet
rose_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-27NET: ROSE: Don't use static buffer.Ralf Baechle
The use of a static buffer in rose2asc() to return its result is not threadproof and can result in corruption if multiple threads are trying to use one of the procfs files based on rose2asc(). Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18net: correct off-by-one write allocations reportsEric Dumazet
commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. We need to take into account this offset when reporting sk_wmem_alloc to user, in PROC_FS files or various ioctls (SIOCOUTQ/TIOCOUTQ) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-17net: sk_wmem_alloc has initial value of one, not zeroEric Dumazet
commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. Some protocols check sk_wmem_alloc value to determine if a timer must delay socket deallocation. We must take care of the sk_wmem_alloc value being one instead of zero when no write allocations are pending. Reported by Ingo Molnar, and full diagnostic from David Miller. This patch introduces three helpers to get read/write allocations and a followup patch will use these helpers to report correct write allocations to user. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-15Revert "rose: zero length frame filtering in af_rose.c"David S. Miller
This reverts commit 244f46ae6e9e18f6fc0be7d1f49febde4762c34b. Alan Cox did the research, and just like the other radio protocols zero-length frames have meaning because at the top level ROSE is X.25 PLP. So this zero-length filtering is invalid. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27af_rose/x25: Sanity check the maximum user frame sizeAlan Cox
Otherwise we can wrap the sizes and end up sending garbage. Closes #10423 Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21rose: convert to internal net_device_statsStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-04Merge branch 'master' into nextJames Morris
Conflicts: fs/nfsd/nfs4recover.c Manually fixed above to use new creds API functions, e.g. nfs4_save_creds(). Signed-off-by: James Morris <jmorris@namei.org>
2008-11-25rose: zero length frame filtering in af_rose.cBernard Pidoux
Since changeset e79ad711a0108475c1b3a03815527e7237020b08 from mainline, >From David S. Miller, empty packet can be transmitted on connected socket for datagram protocols. However, this patch broke a high level application using ROSE network protocol with connected datagram. Bulletin Board Stations perform bulletins forwarding between BBS stations via ROSE network using a forward protocol. Now, if for some reason, a buffer in the application software happens to be empty at a specific moment, ROSE sends an empty packet via unfiltered packet socket. When received, this ROSE packet introduces perturbations of data exchange of BBS forwarding, for the application message forwarding protocol is waiting for something else. We agree that a more careful programming of the application protocol would avoid this situation and we are willing to debug it. But, as an empty frame is no use and does not have any meaning for ROSE protocol, we may consider filtering zero length data both when sending and receiving socket data. The proposed patch repaired BBS data exchange through ROSE network that were broken since 2.6.22.11 kernel. Signed-off-by: Bernard Pidoux <f6bvp@amsat.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-13CRED: Wrap task credential accesses in the ROSE protocolDavid Howells
Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds. Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id(). Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: linux-hams@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>
2008-07-22netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.David S. Miller
The new address list lock needs to handle the same device layering issues that the _xmit_lock one does. This integrates work done by Patrick McHardy. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-20netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki
Without CONFIG_NET_NS, namespace is always &init_net. Compiler will be able to omit namespace comparisons with this patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18netdev: Allocate multiple queues for TX.David S. Miller
alloc_netdev_mq() now allocates an array of netdev_queue structures for TX, based upon the queue_count argument. Furthermore, all accesses to the TX queues are now vectored through the netdev_get_tx_queue() and netdev_for_each_tx_queue() interfaces. This makes it easy to grep the tree for all things that want to get to a TX queue of a net device. Problem spots which are not really multiqueue aware yet, and only work with one queue, can easily be spotted by grepping for all netdev_get_tx_queue() calls that pass in a zero index. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-09netdev: Move _xmit_lock and xmit_lock_owner into netdev_queue.David S. Miller
Accesses are mostly structured such that when there are multiple TX queues the code transformations will be a little bit simpler. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-18rose: improving AX25 routing frames via ROSE networkBernard Pidoux
ROSE network is organized through nodes connected via hamradio or Internet. AX25 packet radio frames sent to a remote ROSE address destination are routed through these nodes. Without the present patch, automatic routing mechanism did not work optimally due to an improper parameter checking. rose_get_neigh() function is called either by rose_connect() or by rose_route_frame(). In the case of a call from rose_connect(), f0 timer is checked to find if a connection is already pending. In that case it returns the address of the neighbour, or returns a NULL otherwise. When called by rose_route_frame() the purpose was to route a packet AX25 frame through an adjacent node given a destination rose address. However, in that case, t0 timer checked does not indicate if the adjacent node is actually connected even if the timer is not null. Thus, for each frame sent, the function often tried to start a new connexion even if the adjacent node was already connected. The patch adds a "new" parameter that is true when the function is called by rose route_frame(). This instructs rose_get_neigh() to check node parameter "restarted". If restarted is true it means that the route to the destination address is opened via a neighbour node already connected. If "restarted" is false the function returns a NULL. In that case the calling function will initiate a new connection as before. This results in a fast routing of frames, from nodes to nodes, until destination is reached, as originaly specified by ROSE protocole. Signed-off-by: Bernard Pidoux <f6bvp@amsat.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17rose: Use sock_graft() and remove bogus sk_socket and sk_sleep init.David S. Miller
This is the rose variant of changeset 9375cb8a1232d2a15fe34bec4d3474872e02faec ("ax25: Use sock_graft() and remove bogus sk_socket and sk_sleep init.") Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-20rose: Socket lock was not released before returning to user spaceBernard Pidoux
================================================ [ BUG: lock held when returning to user space! ] ------------------------------------------------ xfbbd/3683 is leaving the kernel with locks still held! 1 lock held by xfbbd/3683: #0: (sk_lock-AF_ROSE){--..}, at: [<c8cd1eb3>] rose_connect+0x73/0x420 [rose] INFO: task xfbbd:3683 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. xfbbd D 00000246 0 3683 3669 c6965ee0 00000092 c02c5c40 00000246 c0f6b5f0 c0f6b5c0 c0f6b5f0 c0f6b5c0 c0f6b614 c6965f18 c024b74b ffffffff c06ba070 00000000 00000000 00000001 c6ab07c0 c012d450 c0f6b634 c0f6b634 c7b5bf10 c0d6004c c7b5bf10 c6965f40 Call Trace: [<c024b74b>] lock_sock_nested+0x6b/0xd0 [<c012d450>] ? autoremove_wake_function+0x0/0x40 [<c02488f1>] sock_fasync+0x41/0x150 [<c0249e69>] sock_close+0x19/0x40 [<c0175d54>] __fput+0xb4/0x170 [<c0176018>] fput+0x18/0x20 [<c017300e>] filp_close+0x3e/0x70 [<c01744e9>] sys_close+0x69/0xb0 [<c0103bda>] sysenter_past_esp+0x5f/0xa5 ======================= INFO: lockdep is turned off. Signed-off-by: Bernard Pidoux <f6bvp@amsat.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-03Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/s2io.c
2008-04-02[ROSE/AX25] af_rose: rose_release() fixJarek Poplawski
rose_release() doesn't release sockets properly, e.g. it skips sock_orphan(), so OOPSes are triggered in sock_def_write_space(), which was observed especially while ROSE skbs were kfreed from ax25_frames_acked(). There is also sock_hold() and lock_sock() added - similarly to ax25_release(). Thanks to Bernard Pidoux for substantial help in debugging this problem. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Reported-and-tested-by: Bernard Pidoux <bpidoux@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.YOSHIFUJI Hideaki
Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.YOSHIFUJI Hideaki
Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-01-28[ROSE]: Supress sparse warningsEric Dumazet
CHECK net/rose/af_rose.c net/rose/af_rose.c:125:11: warning: expensive signed divide net/rose/af_rose.c:976:46: warning: expensive signed divide net/rose/af_rose.c:1379:13: warning: context imbalance in 'rose_info_start' - wrong count at exit net/rose/af_rose.c:1406:13: warning: context imbalance in 'rose_info_stop' - unexpected unlock CHECK net/rose/rose_in.c net/rose/rose_in.c:185:25: warning: expensive signed divide CHECK net/rose/rose_route.c net/rose/rose_route.c:997:46: warning: expensive signed divide net/rose/rose_route.c:1070:13: warning: context imbalance in 'rose_node_start' - wrong count at exit net/rose/rose_route.c:1093:13: warning: context imbalance in 'rose_node_stop' - unexpected unlock net/rose/rose_route.c:1146:13: warning: context imbalance in 'rose_neigh_start' - wrong count at exit net/rose/rose_route.c:1169:13: warning: context imbalance in 'rose_neigh_stop' - unexpected unlock net/rose/rose_route.c:1229:13: warning: context imbalance in 'rose_route_start' - wrong count at exit net/rose/rose_route.c:1252:13: warning: context imbalance in 'rose_route_stop' - unexpected unlock Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET]: Convert init_timer into setup_timerPavel Emelyanov
Many-many code in the kernel initialized the timer->function and timer->data together with calling init_timer(timer). There is already a helper for this. Use it for networking code. The patch is HUGE, but makes the code 130 lines shorter (98 insertions(+), 228 deletions(-)). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-01[NET]: Forget the zero_it argument of sk_alloc()Pavel Emelyanov
Finally, the zero_it argument can be completely removed from the callers and from the function prototype. Besides, fix the checkpatch.pl warnings about using the assignments inside if-s. This patch is rather big, and it is a part of the previous one. I splitted it wishing to make the patches more readable. Hope this particular split helped. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make device event notification network namespace safeEric W. Biederman
Every user of the network device notifiers is either a protocol stack or a pseudo device. If a protocol stack that does not have support for multiple network namespaces receives an event for a device that is not in the initial network namespace it quite possibly can get confused and do the wrong thing. To avoid problems until all of the protocol stacks are converted this patch modifies all netdev event handlers to ignore events on devices that are not in the initial network namespace. As the rest of the code is made network namespace aware these checks can be removed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make socket creation namespace safe.Eric W. Biederman
This patch passes in the namespace a new socket should be created in and has the socket code do the appropriate reference counting. By virtue of this all socket create methods are touched. In addition the socket create methods are modified so that they will fail if you attempt to create a socket in a non-default network namespace. Failing if we attempt to create a socket outside of the default network namespace ensures that as we incrementally make the network stack network namespace aware we will not export functionality that someone has not audited and made certain is network namespace safe. Allowing us to partially enable network namespaces before all of the exotic protocols are supported. Any protocol layers I have missed will fail to compile because I now pass an extra parameter into the socket creation code. [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make /proc/net per network namespaceEric W. Biederman
This patch makes /proc/net per network namespace. It modifies the global variables proc_net and proc_net_stat to be per network namespace. The proc_net file helpers are modified to take a network namespace argument, and all of their callers are fixed to pass &init_net for that argument. This ensures that all of the /proc/net files are only visible and usable in the initial network namespace until the code behind them has been updated to be handle multiple network namespaces. Making /proc/net per namespace is necessary as at least some files in /proc/net depend upon the set of network devices which is per network namespace, and even more files in /proc/net have contents that are relevant to a single network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[NET] ROSE: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-11[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>
2007-04-26[AX25/NETROM/ROSE]: Convert to use modern wait queue APIRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}Arnaldo Carvalho de Melo
To clearly state the intent of copying to 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@ghostprotocols.net>
2007-04-26[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>
2007-04-26[SK_BUFF]: More skb_put related conversions to skb_reset_transport_headerArnaldo Carvalho de Melo
This is similar to the skb_reset_network_header(), i.e. at the point we reset the transport header pointer/offset skb->tail is equal to skb->data. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[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>
2007-04-26[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolutionEric Dumazet
Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-12[ROSE]: Socket locking is a great invention.Ralf Baechle
Especially if you actually try to do it ;-) Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-12[ROSE]: Remove ourselves from waitqueue when receiving a signalRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 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>