- 02 7月, 2014 2 次提交
-
-
由 Eric Dumazet 提交于
When an UDP application switches from AF_INET to AF_INET6 sockets, we have a small performance degradation for IPv4 communications because of extra cache line misses to access ipv6only information. This can also be noticed for TCP listeners, as ipv6_only_sock() is also used from __inet_lookup_listener()->compute_score() This is magnified when SO_REUSEPORT is used. Move ipv6only into struct sock_common so that it is available at no extra cost in lookups. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Ben Greear 提交于
This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 28 6月, 2014 11 次提交
-
-
由 Octavian Purdila 提交于
Create tcp_conn_request and remove most of the code from tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Add queue_add_hash member to tcp_request_sock_ops so that we can later unify tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Add mss_clamp member to tcp_request_sock_ops so that we can later unify tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Create a new tcp_request_sock_ops method to unify the IPv4/IPv6 signature for tcp_v[46]_send_synack. This allows us to later unify tcp_v4_rtx_synack with tcp_v6_rtx_synack and tcp_v4_conn_request with tcp_v4_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
More work in preparation of unifying tcp_v4_conn_request and tcp_v6_conn_request: indirect the init sequence calls via the tcp_request_sock_ops. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Create wrappers with same signature for the IPv4/IPv6 request routing calls and use these wrappers (via route_req method from tcp_request_sock_ops) in tcp_v4_conn_request and tcp_v6_conn_request with the purpose of unifying the two functions in a later patch. We can later drop the wrapper functions and modify inet_csk_route_req and inet6_cks_route_req to use the same signature. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Move the specific IPv4/IPv6 cookie sequence initialization to a new method in tcp_request_sock_ops in preparation for unifying tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Move the specific IPv4/IPv6 intializations to a new method in tcp_request_sock_ops in preparation for unifying tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Since pktops is only used for IPv6 only and opts is used for IPv4 only, we can move these fields into a union and this allows us to drop the inet6_reqsk_alloc function as after this change it becomes equivalent with inet_reqsk_alloc. This patch also fixes a kmemcheck issue in the IPv6 stack: the flags field was not annotated after a request_sock was allocated. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Octavian Purdila 提交于
Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 26 6月, 2014 5 次提交
-
-
由 Erik Hugne 提交于
The maximum window size is limited by the sequence gap field, which was expanded with bd784533 ("tipc: Expand link sequence gap field to 13 bits") We remove the artificial limit that prevents the link window to be set larger than 150. Signed-off-by: NErik Hugne <erik.hugne@ericsson.com> Reviewed-by: NJon Maloy <jon.maloy@ericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Joe Perches 提交于
Use bool instead of int as the return type. All uses are tested with !. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
When IP route cache had been removed in linux-3.6, we broke assumption that dst entries were all freed after rcu grace period. DST_NOCACHE dst were supposed to be freed from dst_release(). But it appears we want to keep such dst around, either in UDP sockets or tunnels. In sk_dst_get() we need to make sure dst refcount is not 0 before incrementing it, or else we might end up freeing a dst twice. DST_NOCACHE set on a dst does not mean this dst can not be attached to a socket or a tunnel. Then, before actual freeing, we need to observe a rcu grace period to make sure all other cpus can catch the fact the dst is no longer usable. Signed-off-by: NEric Dumazet <edumazet@google.com> Reported-by: NDormando <dormando@rydia.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 George Spelvin 提交于
In case they help the compiler. Signed-off-by: NGeorge Spelvin <linux@horizon.com> Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 George Spelvin 提交于
There's no need for a full 32x32 matrix, when rows before the last are just shifted copies of the rows after them. There's still room for improvement (especially on X86 processors with CRC32 and PCLMUL instructions), but this is a large step in the right direction [which is in particular useful for its current user, namely SCTP checksumming over multiple skb frags[] entries, i.e. in IPVS balancing when other CRC32 offloads are not available]. The internal primitive is now called crc32_generic_shift and takes one less argument; the XOR with crc2 is done in inline wrappers. Signed-off-by: NGeorge Spelvin <linux@horizon.com> Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 24 6月, 2014 4 次提交
-
-
由 Aaron Tomlin 提交于
A 'softlockup' is defined as a bug that causes the kernel to loop in kernel mode for more than a predefined period to time, without giving other tasks a chance to run. Currently, upon detection of this condition by the per-cpu watchdog task, debug information (including a stack trace) is sent to the system log. On some occasions, we have observed that the "victim" rather than the actual "culprit" (i.e. the owner/holder of the contended resource) is reported to the user. Often this information has proven to be insufficient to assist debugging efforts. To avoid loss of useful debug information, for architectures which support NMI, this patch makes it possible to improve soft lockup reporting. This is accomplished by issuing an NMI to each cpu to obtain a stack trace. If NMI is not supported we just revert back to the old method. A sysctl and boot-time parameter is available to toggle this feature. [dzickus@redhat.com: add CONFIG_SMP in certain areas] [akpm@linux-foundation.org: additional CONFIG_SMP=n optimisations] [mq@suse.cz: fix warning] Signed-off-by: NAaron Tomlin <atomlin@redhat.com> Signed-off-by: NDon Zickus <dzickus@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: NJan Moskyto Matejka <mq@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Aaron Tomlin 提交于
Sometimes it is preferred not to use the trigger_all_cpu_backtrace() routine when one wants to avoid capturing a back trace for current. For instance if one was previously captured recently. This patch provides a new routine namely trigger_allbutself_cpu_backtrace() which offers the flexibility to issue an NMI to every cpu but current and capture a back trace accordingly. Patch x86 and sparc to support new routine. [dzickus@redhat.com: add stub in #else clause] [dzickus@redhat.com: don't print message in single processor case, wrap with get/put_cpu based on Oleg's suggestion] [sfr@canb.auug.org.au: undo C99ism] Signed-off-by: NAaron Tomlin <atomlin@redhat.com> Signed-off-by: NDon Zickus <dzickus@redhat.com> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Petr Tesarik 提交于
To allow filtering of huge pages, makedumpfile must be able to identify them in the dump. This can be done by checking the appropriate page flag, so communicate its value to makedumpfile through the VMCOREINFO interface. There's only one small catch. Depending on how many page flags are available on a given architecture, this bit can be called PG_head or PG_compound. I sent a similar patch back in 2012, but Eric Biederman did not like using an #ifdef. So, this time I'm adding a common symbol (PG_head_mask) instead. See https://lkml.org/lkml/2012/11/28/91 for the previous version. Signed-off-by: NPetr Tesarik <ptesarik@suse.cz> Acked-by: NVivek Goyal <vgoyal@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Shaohua Li <shli@kernel.org> Cc: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
skb_flow_dissect() dissects only transport header type in ip_proto. It dose not give any information about IPv4 or IPv6. This patch adds new member, n_proto, to struct flow_keys. Which records the IP layer type. i.e IPv4 or IPv6. This can be used in netdev->ndo_rx_flow_steer driver function to dissect flow. Adding new member to flow_keys increases the struct size by around 4 bytes. This causes BUILD_BUG_ON(sizeof(qcb->data) < sz); to fail in qdisc_cb_private_validate() So increase data size by 4 Signed-off-by: NGovindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 23 6月, 2014 1 次提交
-
-
由 Varka Bhadram 提交于
This patch adds the driver support for the cc2520 radio. Driver support: - Tx and Rx of IEEE-802.15.4 packets - Energy Detection on channel - Setting the Channel for the radio. [b/w 11 - 26 channels] - Start and Stop the radio - h/w address filtering Signed-off-by: NVarka Bhadram <varkab@cdac.in> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 22 6月, 2014 1 次提交
-
-
由 Daniel Mack 提交于
Add a notify callback to inform phy drivers when the core is about to do its link adjustment. No change for drivers that do not implement this callback. Signed-off-by: NDaniel Mack <zonque@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 21 6月, 2014 2 次提交
-
-
由 Steven Rostedt 提交于
Currently the __field() macro in TRACE_EVENT is only good for primitive values, such as integers and pointers, but it fails on complex data types such as structures or unions. This is because the __field() macro determines if the variable is signed or not with the test of: (((type)(-1)) < (type)1) Unfortunately, that fails when type is a structure. Since trace events should support structures as fields a new macro is created for such a case called __field_struct() which acts exactly the same as __field() does but it does not do the signed type check and just uses a constant false for that answer. Cc: Tony Luck <tony.luck@gmail.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
-
由 Oleg Nesterov 提交于
syscall_regfunc() and syscall_unregfunc() should set/clear TIF_SYSCALL_TRACEPOINT system-wide, but do_each_thread() can race with copy_process() and miss the new child which was not added to the process/thread lists yet. Change copy_process() to update the child's TIF_SYSCALL_TRACEPOINT under tasklist. Link: http://lkml.kernel.org/p/20140413185854.GB20668@redhat.com Cc: stable@vger.kernel.org # 2.6.33 Fixes: a871bd33 "tracing: Add syscall tracepoints" Acked-by: NFrederic Weisbecker <fweisbec@gmail.com> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NOleg Nesterov <oleg@redhat.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
-
- 20 6月, 2014 1 次提交
-
-
由 Haiyang Zhang 提交于
The RNDIS_STATUS_NETWORK_CHANGE event is received after the Hyper-V host sleep or hibernation. We refresh network at this time. MS-TFS: 135162 Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com> Reviewed-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 18 6月, 2014 4 次提交
-
-
由 Lars-Peter Clausen 提交于
The user-control put and get handlers as well as the tlv do not protect against concurrent access from multiple threads. Since the state of the control is not updated atomically it is possible that either two write operations or a write and a read operation race against each other. Both can lead to arbitrary memory disclosure. This patch introduces a new lock that protects user-controls from concurrent access. Since applications typically access controls sequentially than in parallel a single lock per card should be fine. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Acked-by: NJaroslav Kysela <perex@perex.cz> Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
-
由 Alexander Gordeev 提交于
Fix racy updates of shared blk_mq_bitmap_tags::wake_index and blk_mq_hw_ctx::wake_index fields. Cc: Ming Lei <tom.leiming@gmail.com> Signed-off-by: NAlexander Gordeev <agordeev@redhat.com> Signed-off-by: NJens Axboe <axboe@fb.com>
-
由 Jens Axboe 提交于
Commit 762380ad inadvertently changed a check for max_sectors to max_hw_sectors. Revert that part, so we still compare against max_sectors. Signed-off-by: NJens Axboe <axboe@fb.com>
-
由 Octavian Purdila 提交于
ir_mark initialization is done for both TCP v4 and v6, move it in the common tcp_openreq_init function. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 17 6月, 2014 4 次提交
-
-
由 Peter Griffin 提交于
This patch fixes two problems: - 1) The device tree isn't currently providing sti-ethclk which is required by the dwmac glue code to correctly configure the ethernet PHY clock speed. This means depending on what the bootloader/jtag has configured this clock to, and what switch/hub the board is plugged into you most likely will NOT successfully negotiate a ethernet link. 2) The stmmaceth clock was associated with the wrong clock. It was referencing the PHY clock rather than the interconnect clock which clocks the IP. This patch also brings us closer to not having to boot the upstream kernel with the clk_ignore_unused parameter. Acked-by: NLee Jones <lee.jones@linaro.org> Signed-off-by: NPeter Griffin <peter.griffin@linaro.org> Signed-off-by: NMaxime Coquelin <maxime.coquelin@st.com>
-
由 Fugang Duan 提交于
There's a enet clock gate missing in clock tree, thus add it. Signed-off-by: NFugang Duan <B38611@freescale.com> Signed-off-by: NShawn Guo <shawn.guo@freescale.com>
-
由 Fabian Frederick 提交于
This patch fixes checkpatch warnings: "WARNING: __packed is preferred over __attribute__((packed))" Signed-off-by: NFabian Frederick <fabf@skynet.be> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
-
由 Kees Cook 提交于
To support using kernel features that are not compatible with hibernation, this creates the "nohibernate" kernel boot parameter to disable both hibernation and resume. This allows hibernation support to be a boot-time choice instead of only a compile-time choice. Signed-off-by: NKees Cook <keescook@chromium.org> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
-
- 16 6月, 2014 2 次提交
-
-
由 Pablo Neira Ayuso 提交于
Since 4fefee57 ("netfilter: nf_tables: allow to delete several objects from a batch"), every new rule bumps the chain use counter. However, this is limited to 16 bits, which means that it will overrun after 2^16 rules. Use a u32 chain counter and check for overflows (just like we do for table objects). Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
-
由 Takashi Iwai 提交于
When a machine is booted with nomodeset option, i915 driver skips the whole initialization. Meanwhile, HD-audio tries to bind wth i915 just by request_symbol() without knowing that the initialization was skipped, and eventually it hits WARN_ON() in i915_request_power_well() and i915_release_power_well() wrongly but still continues probing, even though it doesn't work at all. In this patch, both functions are changed to return an error in case of uninitialized state instead of WARN_ON(), so that HD-audio driver can give up HDMI controller initialization at the right time. Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Cc: <stable@vger.kernel.org> [3.15] Signed-off-by: NTakashi Iwai <tiwai@suse.de>
-
- 15 6月, 2014 3 次提交
-
-
由 Tom Herbert 提交于
This function is used by UDP encapsulation protocols in RX when crossing encapsulation boundary. If ip_summed is set to CHECKSUM_UNNECESSARY and encapsulation is not set, change to CHECKSUM_NONE since the checksum has not been validated within the encapsulation. Clears csum_valid by the same rationale. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tom Herbert 提交于
In __udp_lib_checksum_complete check if checksum is being done over all the data (len is equal to skb->len) and if it is call __skb_checksum_complete instead of __skb_checksum_complete_head. This allows checksum to be saved in checksum complete. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tom Herbert 提交于
Joseph Gasparakis reported that VXLAN GSO offload stopped working with i40e device after recent UDP changes. The problem is that the SKB_GSO_* bits are out of sync with the corresponding NETIF flags. This patch fixes that. Also, we add BUILD_BUG_ONs in net_gso_ok for several GSO constants that were missing to avoid the problem in the future. Reported-by: NJoseph Gasparakis <joseph.gasparakis@intel.com> Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-