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2014-08-25Merge tag 'nfs-for-3.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client fixes from Trond Myklebust: "Highlights: - more fixes for read/write codepath regressions * sleeping while holding the inode lock * stricter enforcement of page contiguity when coalescing requests * fix up error handling in the page coalescing code - don't busy wait on SIGKILL in the file locking code" * tag 'nfs-for-3.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: nfs: Don't busy-wait on SIGKILL in __nfs_iocounter_wait nfs: can_coalesce_requests must enforce contiguity nfs: disallow duplicate pages in pgio page vectors nfs: don't sleep with inode lock in lock_and_join_requests nfs: fix error handling in lock_and_join_requests nfs: use blocking page_group_lock in add_request nfs: fix nonblocking calls to nfs_page_group_lock nfs: change nfs_page_group_lock argument
2014-08-25Merge tag 'trace-fixes-v3.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull fix for ftrace function tracer/profiler conflict from Steven Rostedt: "The rewrite of the ftrace code that makes it possible to allow for separate trampolines had a design flaw with the interaction between the function and function_graph tracers. The main flaw was the simplification of the use of multiple tracers having the same filter (like function and function_graph, that use the set_ftrace_filter file to filter their code). The design assumed that the two tracers could never run simultaneously as only one tracer can be used at a time. The problem with this assumption was that the function profiler could be implemented on top of the function graph tracer, and the function profiler could run at the same time as the function tracer. This caused the assumption to be broken and when ftrace detected this failed assumpiton it would spit out a nasty warning and shut itself down. Instead of using a single ftrace_ops that switches between the function and function_graph callbacks, the two tracers can again use their own ftrace_ops. But instead of having a complex hierarchy of ftrace_ops, the filter fields are placed in its own structure and the ftrace_ops can carefully use the same filter. This change took a bit to be able to allow for this and currently only the global_ops can share the same filter, but this new design can easily be modified to allow for any ftrace_ops to share its filter with another ftrace_ops. The first four patches deal with the change of allowing the ftrace_ops to share the filter (and this needs to go to 3.16 as well). The fifth patch fixes a bug that was also caused by the new changes but only for archs other than x86, and only if those archs implement a direct call to the function_graph tracer which they do not do yet but will in the future. It does not need to go to stable, but needs to be fixed before the other archs update their code to allow direct calls to the function_graph trampoline" * tag 'trace-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Use current addr when converting to nop in __ftrace_replace_code() ftrace: Fix function_profiler and function tracer together ftrace: Fix up trampoline accounting with looping on hash ops ftrace: Update all ftrace_ops for a ftrace_hash_ops update ftrace: Allow ftrace_ops to use the hashes from other ops
2014-08-24Merge tag 'gpio-v3.17-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull gpio fixes from Linus Walleij: - a largeish fix for the IRQ handling in the new Zynq driver. The quite verbose commit message gives the exact details. - move some defines for gpiod flags outside an ifdef to make stub functions work again. - various minor fixes that we can accept for -rc1. * tag 'gpio-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio-lynxpoint: enable input sensing in resume gpio: move GPIOD flags outside #ifdef gpio: delete unneeded test before of_node_put gpio: zynq: Fix IRQ handlers gpiolib: devres: use correct structure type name in sizeof MAINTAINERS: Change maintainer for gpio-bcm-kona.c
2014-08-24Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Intel and radeon fixes. Post KS/LC git requests from i915 and radeon stacked up. They are all fixes along with some new pci ids for radeon, and one maintainers file entry. - i915: display fixes and irq fixes - radeon: pci ids, and misc gpuvm, dpm and hdp cache" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits) MAINTAINERS: Add entry for Renesas DRM drivers drm/radeon: add additional SI pci ids drm/radeon: add new bonaire pci ids drm/radeon: add new KV pci id Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe" drm/radeon: fix active_cu mask on SI and CIK after re-init (v3) drm/radeon: fix active cu count for SI and CIK drm/radeon: re-enable selective GPUVM flushing drm/radeon: Sync ME and PFP after CP semaphore waits v4 drm/radeon: fix display handling in radeon_gpu_reset drm/radeon: fix pm handling in radeon_gpu_reset drm/radeon: Only flush HDP cache for indirect buffers from userspace drm/radeon: properly document reloc priority mask drm/i915: don't try to retrain a DP link on an inactive CRTC drm/i915: make sure VDD is turned off during system suspend drm/i915: cancel hotplug and dig_port work during suspend and unload drm/i915: fix HPD IRQ reenable work cancelation drm/i915: take display port power domain in DP HPD handler drm/i915: Don't try to enable cursor from setplane when crtc is disabled drm/i915: Skip load detect when intel_crtc->new_enable==true ...
2014-08-22nfs: don't sleep with inode lock in lock_and_join_requestsWeston Andros Adamson
This handles the 'nonblock=false' case in nfs_lock_and_join_requests. If the group is already locked and blocking is allowed, drop the inode lock and wait for the group lock to be cleared before trying it all again. This should fix warnings found in peterz's tree (sched/wait branch), where might_sleep() checks are added to wait.[ch]. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Reviewed-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Here are some bug fixes that have piled up during ksummit/linuxcon. 1) Fix endian problems in ibmveth, from Anton Blanchard. 2) IPV6 routing code does GFP_KERNEL allocation in atomic, fix from Benjamin Block. 3) SCTP association fixes from Daniel Borkmann. 4) When multiple VLAN headers are present we have to make sure the second and subsequent ones are pullable in the SKB otherwise we blindly dereference garbage. From Jiri Benc. 5) The argument adjustment of the signature of hlist_add_after*() introduced a regression in the batman-adv code, fix from Sven Eckelmann. 6) Fix TX hang handling to avoid a panic in i40e, from Anjali Singhai Jain. 7) PTP flag test is inverted in i40e driver, from Jesse Brandeburg. 8) ATM LEC driver needs to hold RTNL mutex over MTU changes, from Chas Williams. 9) Truncate packets larger then the TPACKET_V3 format configured buffers, otherwise we overwrite past the end of said buffers. From Eric Dumazet. 10) Fix endianness bugs in qlcnic firmware handling, from Rajesh Borundia and Shahed Shaikh. 11) CXGB4 sometimes doesn't get all of the TX completion events it should resulting in SKBs getting stuck in the TX queue, from Hariprasad Shenai. 12) When the FEC chip's PTP clock is disabled, you can't access the register. Add necessary checks to avoid the resulting hang, from Fugang Duan" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits) drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef net: sctp: fix suboptimal edge-case on non-active active/retrans path selection net: sctp: spare unnecessary comparison in sctp_trans_elect_best net: ethernet: broadcom: bnx2x: Remove redundant #ifdef ibmveth: Fix endian issues with rx_no_buffer statistic net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings() openvswitch: fix panic with multiple vlan headers net: ipv6: fib: don't sleep inside atomic lock net: fec: ptp: avoid register access when ipg clock is disabled cxgb4: Free completed tx skbs promptly cxgb4: Fix race condition in cleanup sctp: not send SCTP_PEER_ADDR_CHANGE notifications with failed probe bnx2x: Revert UNDI flushing mechanism qlcnic: Fix endianess issue in firmware load from file operation qlcnic: Fix endianess issue in FW dump template header qlcnic: Fix flash access interface to application MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver macvlan: Allow setting multicast filter on all macvlan types packet: handle too big packets for PACKET_V3 MAINTAINERS: add entry for ec_bhf driver ...
2014-08-22ftrace: Allow ftrace_ops to use the hashes from other opsSteven Rostedt (Red Hat)
Currently the top level debug file system function tracer shares its ftrace_ops with the function graph tracer. This was thought to be fine because the tracers are not used together, as one can only enable function or function_graph tracer in the current_tracer file. But that assumption proved to be incorrect. The function profiler can use the function graph tracer when function tracing is enabled. Since all function graph users uses the function tracing ftrace_ops this causes a conflict and when a user enables both function profiling as well as the function tracer it will crash ftrace and disable it. The quick solution so far is to move them as separate ftrace_ops like it was earlier. The problem though is to synchronize the functions that are traced because both function and function_graph tracer are limited by the selections made in the set_ftrace_filter and set_ftrace_notrace files. To handle this, a new structure is made called ftrace_ops_hash. This structure will now hold the filter_hash and notrace_hash, and the ftrace_ops will point to this structure. That will allow two ftrace_ops to share the same hashes. Since most ftrace_ops do not share the hashes, and to keep allocation simple, the ftrace_ops structure will include both a pointer to the ftrace_ops_hash called func_hash, as well as the structure itself, called local_hash. When the ops are registered, the func_hash pointer will be initialized to point to the local_hash within the ftrace_ops structure. Some of the ftrace internal ftrace_ops will be initialized statically. This will allow for the function and function_graph tracer to have separate ops but still share the same hash tables that determine what functions they trace. Cc: stable@vger.kernel.org # 3.16 (apply after 3.17-rc4 is out) Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "This small set of fixes addresses a few issues introduced during the merge window, including: - fix typo in I-cache detection that was causing us to treat all I-caches as aliasing - hook up memfd_create and getrandom syscalls for native and compat - revert a temporary hack for defconfig builds in -next (the audit tree changes didn't make it in this merge window) - a couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/ - a simple sparsemem fix for 48-bit physical addressing - small defconfig updates to get autotesters working with X-gene" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: Revert "arm64: Do not invoke audit_syscall_* functions if !CONFIG_AUDIT_SYSCALL" arm64: mm: update max pa bits to 48 arm64: ignore DT memreserve entries when booting in UEFI mode arm64: configs: Enable X-Gene SATA and ethernet in defconfig arm64: align randomized TEXT_OFFSET on 4 kB boundary asm-generic: add memfd_create system call to unistd.h arm64: compat: wire up memfd_create and getrandom syscalls for aarch32 arm64: fix typo in I-cache policy detection
2014-08-22drm/radeon: add additional SI pci idsAlex Deucher
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-08-22drm/radeon: add new bonaire pci idsAlex Deucher
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-08-22drm/radeon: add new KV pci idAlex Deucher
bug: https://bugs.freedesktop.org/show_bug.cgi?id=82912 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-08-21gpio: move GPIOD flags outside #ifdefLinus Walleij
The GPIOD flags are defined inside the #ifdef CONFIG_GPIOLIB switch, making the gpiolib stubs fail if these flags are used by a consumer. This is not correct: the stubs should compile fine without GPIOLIB. Reported-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-19i2c: rework kernel config I2C_ACPILan Tianyu
Commit da3c6647(I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI config) adds a new kernel config I2C_ACPI and make I2C core built in when the config is selected. This is wrong because distributions etc generally compile I2C as a module and the commit broken that. This patch is to rename I2C_ACPI to ACPI_I2C_OPREGION. New config only controls ACPI I2C operation region code and depends on I2C=y. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> [wsa: removed unrelated change for Kconfig] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-08-18drm/radeon: properly document reloc priority maskChristian König
Instead of hard coding the value properly document that this is an userspace interface. No intended functional change. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-08-18asm-generic: add memfd_create system call to unistd.hWill Deacon
Commit 9183df25fe7b ("shm: add memfd_create() syscall") added a new system call (memfd_create) but didn't update the asm-generic unistd header. This patch adds the new system call to the asm-generic version of unistd.h so that it can be used by architectures such as arm64. Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-16net: phy: bcm7xxx: remove 28nm wildcard entryFlorian Fainelli
A wildcard entry with the 32-bits OUI 0x600d8400 was added as part of the BCM7xxx internal PHY driver, but that entry might match other PHYs that are not covered by this driver, so let's just remove it. Fixes: b560a58c45c6 ("net: phy: add Broadcom BCM7xxx internal PHY driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@greenl8ke.davemloft.net>
2014-08-15Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull more SCSI changes from James Bottomley: "This is a small set of updates which missed the first pull. It's more msix updates, some iscsi and qla4xxx fixes, we also have some string null termination fixes a return value fix and a couple of pm8001 firmware fixes. Just a note, we do have a couple of bug fixes coming under separate cover, but they don't have to be part of the merge window" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: iscsi class: Fix freeing of skb in get host error path scsi: fix u14-34f printk format warnings pm8001: fix pm8001_store_update_fw pm8001: Fix erratic calculation in update_flash pm8001: Update MAINTAINERS list libiscsi: return new error code when nop times out iscsi class: fix get_host_stats return code when not supported iscsi class: fix get_host_stats error handling qla4xxx: fix get_host_stats error propagation qla4xxx: check the return value of dma_alloc_coherent() scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction with strncpy scsi: qla4xxx: ql4_os.c: Cleaning up missing null-terminate in conjunction with strncpy qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix() pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
2014-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer fixes from Dmitry Torokhov: "Second round of updates for the input subsystem. Mostly small fixups to the code merged in the first round (atmel_mxt_ts, wacom) but also a smallish patch to xbox driver to support Xbox One controllers and a patch to better handle Synaptics profile sensors found in Cr-48 Chromebooks that should not affect any other devices" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: edt-ft5x06 - remove superfluous assignment Input: xpad - add support for Xbox One controllers Input: atmel_mxt_ts - fix a few issues reported by Coverity Input: atmel_mxt_ts - split config update a bit Input: atmel_mxt_ts - simplify mxt_initialize a bit Input: joystick - use get_cycles on ARMv8 Input: wacom - fix compiler warning if !CONFIG_PM Input: cap1106 - allow changing key mapping from userspace Input: synaptics - use firmware data for Cr-48 Input: synaptics - properly initialize slots for semi-MT Input: MT - make slot cleanup callable outside mt_sync_frame() Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA
2014-08-15Merge branch 'linux_next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac Pull EDAC updates from Mauro Carvalho Chehab. * 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: sb_edac: add support for Haswell based systems sb_edac: Fix mix tab/spaces alignments edac: add DDR4 and RDDR4 sb_edac: remove bogus assumption on mc ordering sb_edac: make minimal use of channel_mask sb_edac: fix socket detection on Ivy Bridge controllers sb_edac: update Kconfig description sb_edac: search devices using product id sb_edac: make RIR limit retrieval per model sb_edac: make node id retrieval per model sb_edac: make memory type detection per memory controller
2014-08-14Merge tag 'pm+acpi-3.17-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI and power management updates from Rafael Wysocki: "These are a couple of regression fixes, cpuidle menu governor optimizations, fixes for ACPI proccessor and battery drivers, hibernation fix to avoid problems related to the e820 memory map, fixes for a few cpufreq drivers and a new version of the suspend profiling tool analyze_suspend.py. Specifics: - Fix for an ACPI-based device hotplug regression introduced in 3.14 that causes a kernel panic to trigger when memory hot-remove is attempted with CONFIG_ACPI_HOTPLUG_MEMORY unset from Tang Chen - Fix for a cpufreq regression introduced in 3.16 that triggers a "sleeping function called from invalid context" bug in dev_pm_opp_init_cpufreq_table() from Stephen Boyd - ACPI battery driver fix for a warning message added in 3.16 that prints silly stuff sometimes from Mariusz Ceier - Hibernation fix for safer handling of mismatches in the 820 memory map between the configurations during image creation and during the subsequent restore from Chun-Yi Lee - ACPI processor driver fix to handle CPU hotplug notifications correctly during system suspend/resume from Lan Tianyu - Series of four cpuidle menu governor cleanups that also should speed it up a bit from Mel Gorman - Fixes for the speedstep-smi, integrator, cpu0 and arm_big_little cpufreq drivers from Hans Wennborg, Himangi Saraogi, Markus Pargmann and Uwe Kleine-König - Version 3.0 of the analyze_suspend.py suspend profiling tool from Todd E Brandt" * tag 'pm+acpi-3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / battery: Fix warning message in acpi_battery_get_state() PM / tools: analyze_suspend.py: update to v3.0 cpufreq: arm_big_little: fix module license spec cpufreq: speedstep-smi: fix decimal printf specifiers ACPI / hotplug: Check scan handlers in acpi_scan_hot_remove() cpufreq: OPP: Avoid sleeping while atomic cpufreq: cpu0: Do not print error message when deferring cpufreq: integrator: Use set_cpus_allowed_ptr PM / hibernate: avoid unsafe pages in e820 reserved regions ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events cpuidle: menu: Lookup CPU runqueues less cpuidle: menu: Call nr_iowait_cpu less times cpuidle: menu: Use ktime_to_us instead of reinventing the wheel cpuidle: menu: Use shifts when calculating averages where possible
2014-08-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "I'm sending this out, in particular, to get the iwlwifi fix propagated: 1) Fix build due to missing include in i40e driver, from Lucas Tanure. 2) Memory leak in openvswitch port allocation, from Chirstoph Jaeger. 3) Check DMA mapping errors in myri10ge, from Stanislaw Gruszka. 4) Fix various deadlock scenerios in sunvnet driver, from Sowmini Varadhan. 5) Fix cxgb4i build failures with incompatible Kconfig settings of the driver vs ipv6, from Anish Bhatt. 6) Fix generation of ACK packet timestamps in the presence of TSO which will be split up, from Willem de Bruijn. 7) Don't enable sched scan in iwlwifi driver, it causes firmware crashes in some revisions. From Emmanuel Grumbach. 8) Revert a macvlan simplification that causes crashes. 9) Handle RTT calculations properly in the presence of repair'd SKBs, from Andrey Vagin. 10) SIT tunnel lookup uses wrong device index in compares, from Shmulik Ladkani. 11) Handle MTU reductions in TCP properly for ipv4 mapped ipv6 sockets, from Neal Cardwell. 12) Add missing annotations in rhashtable code, from Thomas Graf. 13) Fix false interpretation of two RTOs as being from the same TCP loss event in the FRTO code, from Neal Cardwell" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits) netlink: Annotate RCU locking for seq_file walker rhashtable: fix annotations for rht_for_each_entry_rcu() rhashtable: unexport and make rht_obj() static rhashtable: RCU annotations for next pointers tcp: fix ssthresh and undo for consecutive short FRTO episodes tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced() sit: Fix ipip6_tunnel_lookup device matching criteria net: ethernet: ibm: ehea: Remove duplicate object from Makefile net: xgene: Check negative return value of xgene_enet_get_ring_size() tcp: don't use timestamp from repaired skb-s to calculate RTT (v2) net: xilinx: Remove .owner field for driver Revert "macvlan: simplify the structure port" iwlwifi: mvm: disable scheduled scan to prevent firmware crash xen-netback: remove loop waiting function xen-netback: don't stop dealloc kthread too early xen-netback: move NAPI add/remove calls xen-netback: fix debugfs entry creation xen-netback: fix debugfs write length check net-timestamp: fix missing tcp fragmentation cases ...
2014-08-14rhashtable: fix annotations for rht_for_each_entry_rcu()Thomas Graf
Call rcu_deference_raw() directly from within rht_for_each_entry_rcu() as list_for_each_entry_rcu() does. Fixes the following sparse warnings: net/netlink/af_netlink.c:2906:25: expected struct rhash_head const *__mptr net/netlink/af_netlink.c:2906:25: got struct rhash_head [noderef] <asn:4>*<noident> Fixes: e341694e3eb57fc ("netlink: Convert netlink_lookup() to use RCU protected hash table") Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14rhashtable: unexport and make rht_obj() staticThomas Graf
No need to export rht_obj(), all inner to outer object translations occur internally. It was intended to be used with rht_for_each() which now primarily serves as the iterator for rhashtable_remove_pprev() to effectively flush and free the full table. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14rhashtable: RCU annotations for next pointersThomas Graf
Properly annotate next pointers as access is RCU protected in the lookup path. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logicHannes Frederic Sowa
tcp_tw_recycle heavily relies on tcp timestamps to build a per-host ordering of incoming connections and teardowns without the need to hold state on a specific quadruple for TCP_TIMEWAIT_LEN, but only for the last measured RTO. To do so, we keep the last seen timestamp in a per-host indexed data structure and verify if the incoming timestamp in a connection request is strictly greater than the saved one during last connection teardown. Thus we can verify later on that no old data packets will be accepted by the new connection. During moving a socket to time-wait state we already verify if timestamps where seen on a connection. Only if that was the case we let the time-wait socket expire after the RTO, otherwise normal TCP_TIMEWAIT_LEN will be used. But we don't verify this on incoming SYN packets. If a connection teardown was less than TCP_PAWS_MSL seconds in the past we cannot guarantee to not accept data packets from an old connection if no timestamps are present. We should drop this SYN packet. This patch closes this loophole. Please note, this patch does not make tcp_tw_recycle in any way more usable but only adds another safety check: Sporadic drops of SYN packets because of reordering in the network or in the socket backlog queues can happen. Users behing NAT trying to connect to a tcp_tw_recycle enabled server can get caught in blackholes and their connection requests may regullary get dropped because hosts behind an address translator don't have synchronized tcp timestamp clocks. tcp_tw_recycle cannot work if peers don't have tcp timestamps enabled. In general, use of tcp_tw_recycle is disadvised. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Florian Westphal <fw@strlen.de> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()Neal Cardwell
Make sure we use the correct address-family-specific function for handling MTU reductions from within tcp_release_cb(). Previously AF_INET6 sockets were incorrectly always using the IPv6 code path when sometimes they were handling IPv4 traffic and thus had an IPv4 dst. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Diagnosed-by: Willem de Bruijn <willemb@google.com> Fixes: 563d34d057862 ("tcp: dont drop MTU reduction indications") Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14tcp: don't use timestamp from repaired skb-s to calculate RTT (v2)Andrey Vagin
We don't know right timestamp for repaired skb-s. Wrong RTT estimations isn't good, because some congestion modules heavily depends on it. This patch adds the TCPCB_REPAIRED flag, which is included in TCPCB_RETRANS. Thanks to Eric for the advice how to fix this issue. This patch fixes the warning: [ 879.562947] WARNING: CPU: 0 PID: 2825 at net/ipv4/tcp_input.c:3078 tcp_ack+0x11f5/0x1380() [ 879.567253] CPU: 0 PID: 2825 Comm: socket-tcpbuf-l Not tainted 3.16.0-next-20140811 #1 [ 879.567829] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 879.568177] 0000000000000000 00000000c532680c ffff880039643d00 ffffffff817aa2d2 [ 879.568776] 0000000000000000 ffff880039643d38 ffffffff8109afbd ffff880039d6ba80 [ 879.569386] ffff88003a449800 000000002983d6bd 0000000000000000 000000002983d6bc [ 879.569982] Call Trace: [ 879.570264] [<ffffffff817aa2d2>] dump_stack+0x4d/0x66 [ 879.570599] [<ffffffff8109afbd>] warn_slowpath_common+0x7d/0xa0 [ 879.570935] [<ffffffff8109b0ea>] warn_slowpath_null+0x1a/0x20 [ 879.571292] [<ffffffff816d0a05>] tcp_ack+0x11f5/0x1380 [ 879.571614] [<ffffffff816d10bd>] tcp_rcv_established+0x1ed/0x710 [ 879.571958] [<ffffffff816dc9da>] tcp_v4_do_rcv+0x10a/0x370 [ 879.572315] [<ffffffff81657459>] release_sock+0x89/0x1d0 [ 879.572642] [<ffffffff816c81a0>] do_tcp_setsockopt.isra.36+0x120/0x860 [ 879.573000] [<ffffffff8110a52e>] ? rcu_read_lock_held+0x6e/0x80 [ 879.573352] [<ffffffff816c8912>] tcp_setsockopt+0x32/0x40 [ 879.573678] [<ffffffff81654ac4>] sock_common_setsockopt+0x14/0x20 [ 879.574031] [<ffffffff816537b0>] SyS_setsockopt+0x80/0xf0 [ 879.574393] [<ffffffff817b40a9>] system_call_fastpath+0x16/0x1b [ 879.574730] ---[ end trace a17cbc38eb8c5c00 ]--- v2: moving setting of skb->when for repaired skb-s in tcp_write_xmit, where it's set for other skb-s. Fixes: 431a91242d8d ("tcp: timestamp SYN+DATA messages") Fixes: 740b0f1841f6 ("tcp: switch rtt estimations to usec resolution") Cc: Eric Dumazet <edumazet@google.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14Merge tag 'rdma-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband/rdma updates from Roland Dreier: "Main set of InfiniBand/RDMA updates for 3.17 merge window: - MR reregistration support - MAD support for RMPP in userspace - iSER and SRP initiator updates - ocrdma hardware driver updates - other fixes..." * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits) IB/srp: Fix return value check in srp_init_module() RDMA/ocrdma: report asic-id in query device RDMA/ocrdma: Update sli data structure for endianness RDMA/ocrdma: Obtain SL from device structure RDMA/uapi: Include socket.h in rdma_user_cm.h IB/srpt: Handle GID change events IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0] IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0] RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf() IPoIB: Remove unnecessary test for NULL before debugfs_remove() IB/mad: Add user space RMPP support IB/mad: add new ioctl to ABI to support new registration options IB/mad: Add dev_notice messages for various umad/mad registration failures IB/mad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid multicast join attempts with invalid P_key IB/umad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid flushing the workqueue from worker context IB/ipoib: Use P_Key change event instead of P_Key polling mechanism IB/ipath: Add P_Key change event support mlx4_core: Add support for secure-host and SMP firewall ...
2014-08-14Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull more powerpc updates from Ben Herrenschmidt: "Here are some more powerpc bits for 3.17, essentially fixes. The biggest series, also aimed at -stable, is from Aneesh and is the result of weeks and weeks of debugging to find out why the heck or THP implementation was occasionally triggering multi-hit errors in our level 1 TLB. It ended up being a combination of issues including subtleties as to how we should invalidate those special 'MPSS' pages we use to allow the use of 16M pages inside 4K/64K "base page size" segments (you really have to love our MMU !) Another interesting one in the "OMG" category is the series from Michael adding memory barriers to spin_is_locked(). That's also the result of many days of debugging to figure out why the semaphore code would occasionally crash in ways that made no sense. It ended up being some creative lock stacking that was defeated by the fact that our locks allow a load inside the locked section to be re-ordered with the load of the lock value itself (I'm still of two mind about whether to kill that once and for all by putting a heavier barrier back into our lock implementation...). The fixes come with a long explanation in the cset comments, feel free to read it if you feel like having a headache today" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits) powerpc/thp: Add tracepoints to track hugepage invalidate powerpc/mm: Use read barrier when creating real_pte powerpc/thp: Use ACCESS_ONCE when loading pmdp powerpc/thp: Invalidate with vpn in loop powerpc/thp: Handle combo pages in invalidate powerpc/thp: Invalidate old 64K based hash page mapping before insert of 4k pte powerpc/thp: Don't recompute vsid and ssize in loop on invalidate powerpc/thp: Add write barrier after updating the valid bit powerpc: reorder per-cpu NUMA information's initialization powerpc/perf/hv-24x7: Use kmem_cache_free powerpc/pseries/hvcserver: Fix endian issue in hvcs_get_partner_info powerpc: Hard disable interrupts in xmon powerpc: remove duplicate definition of TEXASR_FS powerpc/pseries: Avoid deadlock on removing ddw powerpc/pseries: Failure on removing device node powerpc/boot: Use correct zlib types for comparison powerpc/powernv: Interface to register/unregister opal dump region printk: Add function to return log buffer address and size powerpc: Add POWER8 features to CPU_FTRS_POSSIBLE/ALWAYS powerpc/ppc476: Disable BTAC ...
2014-08-14Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'iwcm', 'mad', 'misc', ↵Roland Dreier
'mlx4', 'mlx5', 'ocrdma' and 'srp' into for-next
2014-08-14Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds
Pull device tree updates from Grant Likely: "The branch contains the following device tree changes the v3.17 merge window: Group changes to the device tree. In preparation for adding device tree overlay support, OF_DYNAMIC is reworked so that a set of device tree changes can be prepared and applied to the tree all at once. OF_RECONFIG notifiers see the most significant change here so that users always get a consistent view of the tree. Notifiers generation is moved from before a change to after it, and notifiers for a group of changes are emitted after the entire block of changes have been applied Automatic console selection from DT. Console drivers can now use of_console_check() to see if the device node is specified as a console device. If so then it gets added as a preferred console. UART devices get this support automatically when uart_add_one_port() is called. DT unit tests no longer depend on pre-loaded data in the device tree. Data is loaded dynamically at the start of unit tests, and then unloaded again when the tests have completed. Also contains a few bugfixes for reserved regions and early memory setup" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: (21 commits) of: Fixing OF Selftest build error drivers: of: add automated assignment of reserved regions to client devices of: Use proper types for checking memory overflow of: typo fix in __of_prop_dup() Adding selftest testdata dynamically into live tree of: Add todo tasklist for Devicetree of: Transactional DT support. of: Reorder device tree changes and notifiers of: Move dynamic node fixups out of powerpc and into common code of: Make sure attached nodes don't carry along extra children of: Make devicetree sysfs update functions consistent. of: Create unlocked versions of node and property add/remove functions OF: Utility helper functions for dynamic nodes of: Move CONFIG_OF_DYNAMIC code into a separate file of: rename of_aliases_mutex to just of_mutex of/platform: Fix of_platform_device_destroy iteration of devices of: Migrate of_find_node_by_name() users to for_each_node_by_name() tty: Update hypervisor tty drivers to use core stdout parsing code. arm/versatile: Add the uart as the stdout device. of: Enable console on serial ports specified by /chosen/stdout-path ...
2014-08-14Merge tag 'vfio-v3.17-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO updates from Alex Williamson: - enable support for bus reset on device release - fixes for EEH support * tag 'vfio-v3.17-rc1' of git://github.com/awilliam/linux-vfio: drivers/vfio: Enable VFIO if EEH is not supported drivers/vfio: Allow EEH to be built as module drivers/vfio: Fix EEH build error vfio-pci: Attempt bus/slot reset on release vfio-pci: Use mutex around open, release, and remove vfio-pci: Release devices with BusMaster disabled
2014-08-14Merge tag 'mmc-v3.17-1' of git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds
Pull MMC updates from Ulf Hansson: "Me and Chris Ball decided to try out using my MMC tree as the primary one, to simplify handling of patches. This pull does thus contains all the MMC patches for 3.17 rc1, no pull from Chris this time. Details: MMC core: - forward compatibility for eMMC - fix some blacklisted cards with broken secure discard MMC host: - mmci: Add support for Qualcomm variant - mmci: Fix regression for arm_variant - sdhci: Various fixes and cleanups - sdhci: Improve external VDD regulator support - sdhci: Support for DDR50 1.8V mode for BayTrail - sdhci-st: Add driver for ST SDHCI controller - sh-mmcif: DMA fixes - omap_hsmmc: Add support for SDIO interrupts - sdhci-pci: Add support for Intel Quark X1000 - dw_mmc: Update the reset sequence - s3cmci: port DMA code to dmaengine API" * tag 'mmc-v3.17-1' of git://git.linaro.org/people/ulf.hansson/mmc: (67 commits) mmc: dw_mmc: modify the dt-binding for removing slot-node and supports-highspeed mmc: dw_mmc: Slot quirk "disable-wp" is deprecated. mmc: mmci: Reverse IRQ handling for the arm_variant mmc: mmci: Move all CMD irq handling to mmci_cmd_irq() mmc: mmci: Remove redundant check of status for DATA irq mmc: dw_mmc: change to use recommended reset procedure mmc: sdhci-pxav3: Use devm_* managed helpers mmc: tmio: Configure DMA slave bus width mmc: sh_mmcif: Configure DMA slave bus width mmc: sh_mmcif: Fix DMA slave address configuration mmc: sh_mmcif: Document DT bindings mmc: sdhci-pci: remove PCI PM functions in suspend/resume callback mmc: Do not advertise secure discard if it is blacklisted mmc: sdhci-msm: Get COMPILE_TEST support mmc: sdhci-msm: Remove unnecessary header file inclusion mmc: sdhci-msm: Fix the binding example mmc: sdhci: add DDR50 1.8V mode support for BayTrail eMMC Controller mmc: sdhci: Preset value not supported in Baytrail eMMC mmc: MMC_USDHI6ROL0 should depend on HAS_DMA mmc: MMC_SH_MMCIF should depend on HAS_DMA ...
2014-08-14Merge branch 'for-3.17/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block driver changes from Jens Axboe: "Nothing out of the ordinary here, this pull request contains: - A big round of fixes for bcache from Kent Overstreet, Slava Pestov, and Surbhi Palande. No new features, just a lot of fixes. - The usual round of drbd updates from Andreas Gruenbacher, Lars Ellenberg, and Philipp Reisner. - virtio_blk was converted to blk-mq back in 3.13, but now Ming Lei has taken it one step further and added support for actually using more than one queue. - Addition of an explicit SG_FLAG_Q_AT_HEAD for block/bsg, to compliment the the default behavior of adding to the tail of the queue. From Douglas Gilbert" * 'for-3.17/drivers' of git://git.kernel.dk/linux-block: (86 commits) bcache: Drop unneeded blk_sync_queue() calls bcache: add mutex lock for bch_is_open bcache: Correct printing of btree_gc_max_duration_ms bcache: try to set b->parent properly bcache: fix memory corruption in init error path bcache: fix crash with incomplete cache set bcache: Fix more early shutdown bugs bcache: fix use-after-free in btree_gc_coalesce() bcache: Fix an infinite loop in journal replay bcache: fix crash in bcache_btree_node_alloc_fail tracepoint bcache: bcache_write tracepoint was crashing bcache: fix typo in bch_bkey_equal_header bcache: Allocate bounce buffers with GFP_NOWAIT bcache: Make sure to pass GFP_WAIT to mempool_alloc() bcache: fix uninterruptible sleep in writeback thread bcache: wait for buckets when allocating new btree root bcache: fix crash on shutdown in passthrough mode bcache: fix lockdep warnings on shutdown bcache allocator: send discards with correct size bcache: Fix to remove the rcu_sched stalls. ...
2014-08-14Merge branch 'for-3.17/core' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block core bits from Jens Axboe: "Small round this time, after the massive blk-mq dump for 3.16. This pull request contains: - Fixes for max_sectors overflow in ioctls from Akinoby Mita. - Partition off-by-one bug fix in aix partitions from Dan Carpenter. - Various small partition cleanups from Fabian Frederick. - Fix for the block integrity code sometimes returning the wrong vector count from Gu Zheng. - Cleanup an re-org of the blk-mq queue enter/exit percpu counters from Tejun. Dependent on the percpu pull for 3.17 (which was in the block tree too), that you have already pulled in. - A blkcg oops fix, also from Tejun" * 'for-3.17/core' of git://git.kernel.dk/linux-block: partitions: aix.c: off by one bug blkcg: don't call into policy draining if root_blkg is already gone Revert "bio: modify __bio_add_page() to accept pages that don't start a new segment" bio: modify __bio_add_page() to accept pages that don't start a new segment block: fix SG_[GS]ET_RESERVED_SIZE ioctl when max_sectors is huge block: fix BLKSECTGET ioctl when max_sectors is greater than USHRT_MAX block/partitions/efi.c: kerneldoc fixing block/partitions/msdos.c: code clean-up block/partitions/amiga.c: replace nolevel printk by pr_err block/partitions/aix.c: replace count*size kzalloc by kcalloc bio-integrity: add "bip_max_vcnt" into struct bio_integrity_payload blk-mq: use percpu_ref for mq usage count blk-mq: collapse __blk_mq_drain_queue() into blk_mq_freeze_queue() blk-mq: decouble blk-mq freezing from generic bypassing block, blk-mq: draining can't be skipped even if bypass_depth was non-zero blk-mq: fix a memory ordering bug in blk_mq_queue_enter()
2014-08-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Several networking final fixes and tidies for the merge window: 1) Changes during the merge window unintentionally took away the ability to build bluetooth modular, fix from Geert Uytterhoeven. 2) Several phy_node reference count bug fixes from Uwe Kleine-König. 3) Fix ucc_geth build failures, also from Uwe Kleine-König. 4) Fix klog false positivies when netlink messages go to network taps, by properly resetting the network header. Fix from Daniel Borkmann. 5) Sizing estimate of VF netlink messages is too small, from Jiri Benc. 6) New APM X-Gene SoC ethernet driver, from Iyappan Subramanian. 7) VLAN untagging is erroneously dependent upon whether the VLAN module is loaded or not, but there are generic dependencies that matter wrt what can be expected as the SKB enters the stack. Make the basic untagging generic code, and do it unconditionally. From Vlad Yasevich. 8) xen-netfront only has so many slots in it's transmit queue so linearize packets that have too many frags. From Zoltan Kiss. 9) Fix suspend/resume PHY handling in bcmgenet driver, from Florian Fainelli" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (55 commits) net: bcmgenet: correctly resume adapter from Wake-on-LAN net: bcmgenet: update UMAC_CMD only when link is detected net: bcmgenet: correctly suspend and resume PHY device net: bcmgenet: request and enable main clock earlier net: ethernet: myricom: myri10ge: myri10ge.c: Cleaning up missing null-terminate after strncpy call xen-netfront: Fix handling packets on compound pages with skb_linearize net: fec: Support phys probed from devicetree and fixed-link smsc: replace WARN_ON() with WARN_ON_SMP() xen-netback: Don't deschedule NAPI when carrier off net: ethernet: qlogic: qlcnic: Remove duplicate object file from Makefile wan: wanxl: Remove typedefs from struct names m68k/atari: EtherNEC - ethernet support (ne) net: ethernet: ti: cpmac.c: Cleaning up missing null-terminate after strncpy call hdlc: Remove typedefs from struct names airo_cs: Remove typedef local_info_t atmel: Remove typedef atmel_priv_ioctl com20020_cs: Remove typedef com20020_dev_t ethernet: amd: Remove typedef local_info_t net: Always untag vlan-tagged traffic on input. drivers: net: Add APM X-Gene SoC ethernet driver support. ...
2014-08-13Merge tag 'nfs-for-3.17-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client updates from Trond Myklebust: "Highlights include: - stable fix for a bug in nfs3_list_one_acl() - speed up NFS path walks by supporting LOOKUP_RCU - more read/write code cleanups - pNFS fixes for layout return on close - fixes for the RCU handling in the rpcsec_gss code - more NFS/RDMA fixes" * tag 'nfs-for-3.17-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (79 commits) nfs: reject changes to resvport and sharecache during remount NFS: Avoid infinite loop when RELEASE_LOCKOWNER getting expired error SUNRPC: remove all refcounting of groupinfo from rpcauth_lookupcred NFS: fix two problems in lookup_revalidate in RCU-walk NFS: allow lockless access to access_cache NFS: teach nfs_lookup_verify_inode to handle LOOKUP_RCU NFS: teach nfs_neg_need_reval to understand LOOKUP_RCU NFS: support RCU_WALK in nfs_permission() sunrpc/auth: allow lockless (rcu) lookup of credential cache. NFS: prepare for RCU-walk support but pushing tests later in code. NFS: nfs4_lookup_revalidate: only evaluate parent if it will be used. NFS: add checks for returned value of try_module_get() nfs: clear_request_commit while holding i_lock pnfs: add pnfs_put_lseg_async pnfs: find swapped pages on pnfs commit lists too nfs: fix comment and add warn_on for PG_INODE_REF nfs: check wait_on_bit_lock err in page_group_lock sunrpc: remove "ec" argument from encrypt_v2 operation sunrpc: clean up sparse endianness warnings in gss_krb5_wrap.c sunrpc: clean up sparse endianness warnings in gss_krb5_seal.c ...
2014-08-13Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull quota, reiserfs, UDF updates from Jan Kara: "Scalability improvements for quota, a few reiserfs fixes, and couple of misc cleanups (udf, ext2)" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: reiserfs: Fix use after free in journal teardown reiserfs: fix corruption introduced by balance_leaf refactor udf: avoid redundant memcpy when writing data in ICB fs/udf: re-use hex_asc_upper_{hi,lo} macros fs/quota: kernel-doc warning fixes udf: use linux/uaccess.h fs/ext2/super.c: Drop memory allocation cast quota: remove dqptr_sem quota: simplify remove_inode_dquot_ref() quota: avoid unnecessary dqget()/dqput() calls quota: protect Q_GETFMT by dqonoff_mutex
2014-08-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "There is a lot of refactoring and hardening of the libceph and rbd code here from Ilya that fix various smaller bugs, and a few more important fixes with clone overlap. The main fix is a critical change to the request_fn handling to not sleep that was exposed by the recent mutex changes (which will also go to the 3.16 stable series). Yan Zheng has several fixes in here for CephFS fixing ACL handling, time stamps, and request resends when the MDS restarts. Finally, there are a few cleanups from Himangi Saraogi based on Coccinelle" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (39 commits) libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly rbd: remove extra newlines from rbd_warn() messages rbd: allocate img_request with GFP_NOIO instead GFP_ATOMIC rbd: rework rbd_request_fn() ceph: fix kick_requests() ceph: fix append mode write ceph: fix sizeof(struct tYpO *) typo ceph: remove redundant memset(0) rbd: take snap_id into account when reading in parent info rbd: do not read in parent info before snap context rbd: update mapping size only on refresh rbd: harden rbd_dev_refresh() and callers a bit rbd: split rbd_dev_spec_update() into two functions rbd: remove unnecessary asserts in rbd_dev_image_probe() rbd: introduce rbd_dev_header_info() rbd: show the entire chain of parent images ceph: replace comma with a semicolon rbd: use rbd_segment_name_free() instead of kfree() ceph: check zero length in ceph_sync_read() ceph: reset r_resend_mds after receiving -ESTALE ...
2014-08-13powerpc/thp: Add tracepoints to track hugepage invalidateAneesh Kumar K.V
Add tracepoint to track hugepage invalidate. This help us in debugging difficult to track bugs. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-08-13printk: Add function to return log buffer address and sizeVasant Hegde
Platforms like IBM Power Systems supports service processor assisted dump. It provides interface to add memory region to be captured when system is crashed. During initialization/running we can add kernel memory region to be collected. Presently we don't have a way to get the log buffer base address and size. This patch adds support to return log buffer address and size. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Andrew Morton <akpm@linux-foundation.org>
2014-08-12RDMA/uapi: Include socket.h in rdma_user_cm.hDoug Ledford
added struct sockaddr_storage to rdma_user_cm.h without also adding an include for linux/socket.h to make sure it is defined. Systemtap needs the header files to build standalone and cannot rely on other files to pre-include other headers, so add linux/socket.h to the list of includes in this file. Fixes: ee7aed4528f ("RDMA/ucma: Support querying for AF_IB addresses") Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-11Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'Rafael J. Wysocki
* pm-sleep: PM / hibernate: avoid unsafe pages in e820 reserved regions * pm-cpufreq: cpufreq: arm_big_little: fix module license spec cpufreq: speedstep-smi: fix decimal printf specifiers cpufreq: OPP: Avoid sleeping while atomic cpufreq: cpu0: Do not print error message when deferring cpufreq: integrator: Use set_cpus_allowed_ptr * pm-cpuidle: cpuidle: menu: Lookup CPU runqueues less cpuidle: menu: Call nr_iowait_cpu less times cpuidle: menu: Use ktime_to_us instead of reinventing the wheel cpuidle: menu: Use shifts when calculating averages where possible
2014-08-11net: Always untag vlan-tagged traffic on input.Vlad Yasevich
Currently the functionality to untag traffic on input resides as part of the vlan module and is build only when VLAN support is enabled in the kernel. When VLAN is disabled, the function vlan_untag() turns into a stub and doesn't really untag the packets. This seems to create an interesting interaction between VMs supporting checksum offloading and some network drivers. There are some drivers that do not allow the user to change tx-vlan-offload feature of the driver. These drivers also seem to assume that any VLAN-tagged traffic they transmit will have the vlan information in the vlan_tci and not in the vlan header already in the skb. When transmitting skbs that already have tagged data with partial checksum set, the checksum doesn't appear to be updated correctly by the card thus resulting in a failure to establish TCP connections. The following is a packet trace taken on the receiver where a sender is a VM with a VLAN configued. The host VM is running on doest not have VLAN support and the outging interface on the host is tg3: 10:12:43.503055 52:54:00:ae:42:3f > 28:d2:44:7d:c2:de, ethertype 802.1Q (0x8100), length 78: vlan 100, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 27243, offset 0, flags [DF], proto TCP (6), length 60) 10.0.100.1.58545 > 10.0.100.10.ircu-2: Flags [S], cksum 0xdc39 (incorrect -> 0x48d9), seq 1069378582, win 29200, options [mss 1460,sackOK,TS val 4294837885 ecr 0,nop,wscale 7], length 0 10:12:44.505556 52:54:00:ae:42:3f > 28:d2:44:7d:c2:de, ethertype 802.1Q (0x8100), length 78: vlan 100, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 27244, offset 0, flags [DF], proto TCP (6), length 60) 10.0.100.1.58545 > 10.0.100.10.ircu-2: Flags [S], cksum 0xdc39 (incorrect -> 0x44ee), seq 1069378582, win 29200, options [mss 1460,sackOK,TS val 4294838888 ecr 0,nop,wscale 7], length 0 This connection finally times out. I've only access to the TG3 hardware in this configuration thus have only tested this with TG3 driver. There are a lot of other drivers that do not permit user changes to vlan acceleration features, and I don't know if they all suffere from a similar issue. The patch attempt to fix this another way. It moves the vlan header stipping code out of the vlan module and always builds it into the kernel network core. This way, even if vlan is not supported on a virtualizatoin host, the virtual machines running on top of such host will still work with VLANs enabled. CC: Patrick McHardy <kaber@trash.net> CC: Nithin Nayak Sujir <nsujir@broadcom.com> CC: Michael Chan <mchan@broadcom.com> CC: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs updates from Al Viro: "Stuff in here: - acct.c fixes and general rework of mnt_pin mechanism. That allows to go for delayed-mntput stuff, which will permit mntput() on deep stack without worrying about stack overflows - fs shutdown will happen on shallow stack. IOW, we can do Eric's umount-on-rmdir series without introducing tons of stack overflows on new mntput() call chains it introduces. - Bruce's d_splice_alias() patches - more Miklos' rename() stuff. - a couple of regression fixes (stable fodder, in the end of branch) and a fix for API idiocy in iov_iter.c. There definitely will be another pile, maybe even two. I'd like to get Eric's series in this time, but even if we miss it, it'll go right in the beginning of for-next in the next cycle - the tricky part of prereqs is in this pile" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits) fix copy_tree() regression __generic_file_write_iter(): fix handling of sync error after DIO switch iov_iter_get_pages() to passing maximal number of pages fs: mark __d_obtain_alias static dcache: d_splice_alias should detect loops exportfs: update Exporting documentation dcache: d_find_alias needn't recheck IS_ROOT && DCACHE_DISCONNECTED dcache: remove unused d_find_alias parameter dcache: d_obtain_alias callers don't all want DISCONNECTED dcache: d_splice_alias should ignore DCACHE_DISCONNECTED dcache: d_splice_alias mustn't create directory aliases dcache: close d_move race in d_splice_alias dcache: move d_splice_alias namei: trivial fix to vfs_rename_dir comment VFS: allow ->d_manage() to declare -EISDIR in rcu_walk mode. cifs: support RENAME_NOREPLACE hostfs: support rename flags shmem: support RENAME_EXCHANGE shmem: support RENAME_NOREPLACE btrfs: add RENAME_NOREPLACE ...
2014-08-11Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dma updates from Vinod Koul: "Some notable changes are: - new driver for AMBA AXI NBPF by Guennadi - new driver for sun6i controller by Maxime - pl330 drivers fixes from Lar's - sh-dma updates and fixes from Laurent, Geert and Kuninori - Documentation updates from Geert - drivers fixes and updates spread over dw, edma, freescale, mpc512x etc.." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits) dmaengine: sun6i: depends on RESET_CONTROLLER dma: at_hdmac: fix invalid remaining bytes detection dmaengine: nbpfaxi: don't build this driver where it cannot be used dmaengine: nbpf_error_get_channel() can be static dma: pl08x: Use correct specifier for size_t values dmaengine: Remove the context argument to the prep_dma_cyclic operation dmaengine: nbpfaxi: convert to tasklet dmaengine: nbpfaxi: fix a theoretical race dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores dmaengine: add device tree binding documentation for the nbpfaxi driver dmaengine: edma: Do not register second device when booted with DT dmaengine: edma: Do not change the error code returned from edma_alloc_slot dmaengine: rcar-dmac: Add device tree bindings documentation dmaengine: shdma: Allocate cyclic sg list dynamically dmaengine: shdma: Make channel filter ignore unrelated devices dmaengine: sh: Rework Kconfig and Makefile dmaengine: sun6i: Fix memory leaks dmaengine: sun6i: Free the interrupt before killing the tasklet dmaengine: sun6i: Remove switch statement from buswidth convertion routine dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected ...
2014-08-11Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal updates from Zhang Rui: "Specifics: - adds full support for 2 types of Thermal Controllers produced by STMicroelectronics. One is a more traditional memory mapped variant, the other is controlled solely by system configuration registers. From Lee Jones. - add TMU (Thermal Management Unit) support for Exynos3250 Soc. From Chanwoo Choi. - add critical and passive trip point support for int3403 thermal driver. From Srinivas Pandruvada. - a couple of small fixes/cleanups from Javi Merino, and Geert Uytterhoeven" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: document struct thermal_zone_device and thermal_governor thermal: cpu_cooling: fix typo highjack -> hijack thermal: rcar: Document SoC-specific bindings thermal: samsung: Add TMU support for Exynos3250 SoC thermal: exynos: fix ordering in exynos_tmu_remove() thermal: allow building dove_thermal with mvebu thermal: sti: Add support for ST's Memory Mapped based Thermal controller thermal: sti: Add support for ST's System Config Register based Thermal controller thermal: sti: Introduce ST Thermal core code thermal: sti: Supply Device Tree documentation Thermal: int3403: Add CRT and PSV trip
2014-08-11Merge branch 'devicetree/next-overlay' into devicetree/nextGrant Likely
Conflicts: drivers/of/testcase-data/testcases.dts
2014-08-11Merge branch 'devicetree/next-console' into devicetree/nextGrant Likely
2014-08-11mmc: dw_mmc: Slot quirk "disable-wp" is deprecated.Jaehoon Chung
Slot quirks "disable-wp" is deprecated. Instead, use the host quirk "disable-wp". (Because the slot-node is removed in dt-file.) Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Sachin Kamat <sachin.kamat@samsung.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>