- 21 4月, 2015 7 次提交
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由 Vivien Didelot 提交于
Minor, use the explicit PORT_DEFAULT_VLAN define instead of 0x07. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
mv88e6xxx_setup_port_common was writing to PORT_DEFAULT_VLAN (port offset 0x07) instead of PORT_CONTROL_1 (port offset 0x05). Fixes: cca8b133 ("net: dsa: Use mnemonics rather than register numbers") Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Tom Herbert says: ==================== net: Fix "hw csum failure" message flood for ppp tunnel This patch set addresses bug "Bug 95171 - "hw csum failure" message flood for ppp tunnel since upgrade to 3.16". The problem is that pppoe is being used over UDP with UDP checksusm enabled. On receive checksum conversion turns checksum-unnecessary in checksum- complete. The PPP receive functions do not properly pull the checksum over its headers, so that when an encapsulated checksums is considered the checksum-complete value is incorrect. This patch adds skb_checksum_complete_unset which can be called in the receive path in lieu of pulling checksum complete in layer. This is useful when the packet is being modified (e.g. decompressed) and the checksum-complete value is no longer relevant. In the ppp_receive_frame we call skb_checksum_complete_unset to toss out checksum-complete. This should eliminate the reported messages. Alternatively, we could add skb_postpull_rcsum and probably special case handling for VJ compression if maintaining the checksum-complete is needed (not clear to me this is worth the effort). I haven't tested this since setting up the failure scenario doesn't seem trivial to configure. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
Call checksum_complete_unset in PPP receive to discard checksum-complete value. PPP does not pull checksum for headers and also modifies packet as in VJ compression. Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
This function changes ip_summed to CHECKSUM_NONE if CHECKSUM_COMPLETE is set. This is called to discard checksum-complete when packet is being modified and checksum is not pulled for headers in a layer. Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Joakim Tjernlund 提交于
A pppoe session is identified by its session ID and MAC address. Currently pppoe does not check if the received pkg has the correct MAC address. This is a problem when the eth I/F is in promisc mode as then any DST MAC address is accepted. Signed-off-by: NJoakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sebastian Pöhn 提交于
Initial discussion was: [FYI] xfrm: Don't lookup sk_policy for timewait sockets Forwarded frames should not have a socket attached. Especially tw sockets will lead to panics later-on in the stack. This was observed with TPROXY assigning a tw socket and broken policy routing (misconfigured). As a result frame enters forwarding path instead of input. We cannot solve this in TPROXY as it cannot know that policy routing is broken. v2: Remove useless comment Signed-off-by: NSebastian Poehn <sebastian.poehn@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 4月, 2015 27 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide由 Linus Torvalds 提交于
Pull IDE update from David Miller: "Just one change, getting rid of usage of the deprecated PCI DMA interfaces in the IDE drivers" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: ide: remove deprecated use of pci api
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: 1) Fix verifier memory corruption and other bugs in BPF layer, from Alexei Starovoitov. 2) Add a conservative fix for doing BPF properly in the BPF classifier of the packet scheduler on ingress. Also from Alexei. 3) The SKB scrubber should not clear out the packet MARK and security label, from Herbert Xu. 4) Fix oops on rmmod in stmmac driver, from Bryan O'Donoghue. 5) Pause handling is not correct in the stmmac driver because it doesn't take into consideration the RX and TX fifo sizes. From Vince Bridgers. 6) Failure path missing unlock in FOU driver, from Wang Cong. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits) net: dsa: use DEVICE_ATTR_RW to declare temp1_max netns: remove BUG_ONs from net_generic() IB/ipoib: Fix ndo_get_iflink sfc: Fix memcpy() with const destination compiler warning. altera tse: Fix network-delays and -retransmissions after high throughput. net: remove unused 'dev' argument from netif_needs_gso() act_mirred: Fix bogus header when redirecting from VLAN inet_diag: fix access to tcp cc information tcp: tcp_get_info() should fetch socket fields once net: dsa: mv88e6xxx: Add missing initialization in mv88e6xxx_set_port_state() skbuff: Do not scrub skb mark within the same name space Revert "net: Reset secmark when scrubbing packet" bpf: fix two bugs in verification logic when accessing 'ctx' pointer bpf: fix bpf helpers to use skb->mac_header relative offsets stmmac: Configure Flow Control to work correctly based on rxfifo size stmmac: Enable unicast pause frame detect in GMAC Register 6 stmmac: Read tx-fifo-depth and rx-fifo-depth from the devicetree stmmac: Add defines and documentation for enabling flow control stmmac: Add properties for transmit and receive fifo sizes stmmac: fix oops on rmmod after assigning ip addr ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc由 Linus Torvalds 提交于
Pull sparc updates from David Miller: "The PowerPC folks have a really nice scalable IOMMU pool allocator that we wanted to make use of for sparc. So here we have a series that abstracts out their code into a common layer that anyone can make use of. Sparc is converted, and the PowerPC folks have reviewed and ACK'd this series and plan to convert PowerPC over as well" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: iommu-common: Fix PARISC compile-time warnings sparc: Make LDC use common iommu poll management functions sparc: Make sparc64 use scalable lib/iommu-common.c functions sparc: Break up monolithic iommu table/lock into finer graularity pools and lock
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile由 Linus Torvalds 提交于
Pull arch/tile updates from Chris Metcalf: "These are mostly nohz_full changes, plus a smattering of minor fixes (notably a couple for ftrace)" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: nohz: warn if nohz_full uses hypervisor shared cores tile: ftrace: fix function_graph tracer issues tile: map data region shadow of kernel as R/W tile: support CONTEXT_TRACKING and thus NOHZ_FULL tile: support arch_irq_work_raise arch: tile: fix null pointer dereference on pt_regs pointer tile/elf: reorganize notify_exec() tile: use si_int instead of si_ptr for compat_siginfo
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由 Vivien Didelot 提交于
Since commit da4759c7 (sysfs: Use only return value from is_visible for the file mode), it is possible to reduce the permissions of a file. So declare temp1_max with the DEVICE_ATTR_RW macro and remove the write permission in dsa_hwmon_attrs_visible if set_temp_limit isn't provided. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for Linux 4.1. Most noteworthy: - Add more Octeon-optimized crypto functions - Octeon crypto preemption and locking fixes - Little endian support for Octeon - Use correct CSR to soft reset Octeons - Support LEDs on the Octeon-based DSR-1000N - Fix PCI interrupt mapping for the Octeon-based DSR-1000N - Mark prom_free_prom_memory() as __init for a number of systems - Support for Imagination's Pistachio SOC. This includes arch and CLK bits. I'd like to merge pinctrl bits later - Improve parallelism of csum_partial for certain pipelines - Organize DTB files in subdirs like other architectures - Implement read_sched_clock for all MIPS platforms other than Octeon - Massive series of 38 fixes and cleanups for the FPU emulator / kernel - Further FPU remulator work to support new features. This sits on a separate branch which also has been pulled into the 4.1 KVM branch - Clean up and fixes for the SEAD3 eval board; remove unused file - Various updates for Netlogic platforms - A number of small updates for Loongson 3 platforms - Increase the memory limit for ATH79 platforms to 256MB - A fair number of fixes and updates for BCM47xx platforms - Finish the implementation of XPA support - MIPS FDC support. No, not floppy controller but Fast Debug Channel :) - Detect the R16000 used in SGI legacy platforms - Fix Kconfig dependencies for the SSB bus support" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits) MIPS: Makefile: Fix MIPS ASE detection code MIPS: asm: elf: Set O32 default FPU flags MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G MIPS: Kconfig: Disable SMP/CPS for 64-bit MIPS: Hibernate: flush TLB entries earlier MIPS: smp-cps: cpu_set FPU mask if FPU present MIPS: lose_fpu(): Disable FPU when MSA enabled MIPS: ralink: add missing symbol for RALINK_ILL_ACC MIPS: ralink: Fix bad config symbol in PCI makefile. SSB: fix Kconfig dependencies MIPS: Malta: Detect and fix bad memsize values Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores." MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard. MIPS: Fix cpu_has_mips_r2_exec_hazard. MIPS: kernel: entry.S: Set correct ISA level for mips_ihb MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter MIPS: unaligned: Fix regular load/store instruction emulation for EVA MIPS: unaligned: Surround load/store macros in do {} while statements ...
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git://github.com/czankel/xtensa-linux由 Linus Torvalds 提交于
Pull Xtensa updates from Chris Zankel: - fix linker script transformation for .text / .text.fixup - wire bpf and execveat syscalls - provide __NR_sync_file_range2 instead of __NR_sync_file_range, as that's what xtensa uses. - make xtfpgs LCD driver functional and configurable. This fixes hardware lockup on KC705/ML605 boot - add audio subsystem bits to xtfpga DTS and provide sample KC705 config with audio features enabled - add CY7C67300 USB controller support to XTFPGA - fix locking issues in ISS network driver - document PIC and MX interrupt distributor device tree bindings * tag 'xtensa-20150416' of git://github.com/czankel/xtensa-linux: xtensa: xtfpga: add CY7C67300 USB controller support irqchip: xtensa-pic: xtensa-mx: document DT bindings xtensa: ISS: fix locking in TAP network adapter xtensa: Fix fix linker script transformation for .text / .text.fixup xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range xtensa: wire bpf and execveat syscalls xtensa: xtfpga: fix hardware lockup caused by LCD driver xtensa: xtfpga: provide defconfig with audio subsystem xtensa: xtfpga: add audio card to xtfpga DTS
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由 Quentin Lambert 提交于
Replace occurences of the pci api by appropriate call to the dma api. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr) @deprecated@ idexpression id; position p; @@ ( pci_dma_supported@p ( id, ...) | pci_alloc_consistent@p ( id, ...) ) @bad1@ idexpression id; position deprecated.p; @@ ...when != &id->dev when != pci_get_drvdata ( id ) when != pci_enable_device ( id ) ( pci_dma_supported@p ( id, ...) | pci_alloc_consistent@p ( id, ...) ) @depends on !bad1@ idexpression id; expression direction; position deprecated.p; @@ ( - pci_dma_supported@p ( id, + dma_supported ( &id->dev, ... + , GFP_ATOMIC ) | - pci_alloc_consistent@p ( id, + dma_alloc_coherent ( &id->dev, ... + , GFP_ATOMIC ) ) Signed-off-by: NQuentin Lambert <lambert.quentin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sowmini Varadhan 提交于
Fixes warnings due to - no DMA_ERROR_CODE on PARISC, - sizeof (unsigned long) == 4 bytes on PARISC. Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Denys Vlasenko 提交于
This inline has ~500 callsites. On 04/14/2015 08:37 PM, David Miller wrote: > That BUG_ON() was added 7 years ago, and I don't remember it ever > triggering or helping us diagnose something, so just remove it and > keep the function inlined. On x86 allyesconfig build: text data bss dec hex filename 82447071 22255384 20627456 125329911 77861f7 vmlinux4 82441375 22255384 20627456 125324215 7784bb7 vmlinux5prime Signed-off-by: NDenys Vlasenko <dvlasenk@redhat.com> CC: Eric W. Biederman <ebiederm@xmission.com> CC: David S. Miller <davem@davemloft.net> CC: Jan Engelhardt <jengelh@medozas.de> CC: Jiri Pirko <jpirko@redhat.com> CC: linux-kernel@vger.kernel.org CC: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Erez Shitrit 提交于
Currently, iflink of the parent interface was always accessed, even when interface didn't have a parent and hence we crashed there. Handle the interface types properly: for a child interface, return the ifindex of the parent, for parent interface, return its ifindex. For child devices, make sure to set the parent pointer prior to invoking register_netdevice(), this allows the new ndo to be called by the stack immediately after the child device is registered. Fixes: 5aa7add8 ('infiniband/ipoib: implement ndo_get_iflink') Reported-by: NHonggang Li <honli@redhat.com> Signed-off-by: NErez Shitrit <erezsh@mellanox.com> Signed-off-by: NHonggang Li <honli@redhat.com> Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>+ Acked-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
drivers/net/ethernet/sfc/selftest.c: In function ‘efx_iterate_state’: drivers/net/ethernet/sfc/selftest.c:388:9: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-array-qualifiers] This is because the msg[] member of struct efx_loopback_payload is marked as 'const'. Remove that. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andreas Oetken 提交于
Fix bug which occurs when more than <limit> packets are available during napi-poll, leading to "delays" and retransmissions on the network. Check for (count < limit) before checking the get_rx_status in tse_rx-function. Function get_rx_status is reading from the response-fifo. If there is currently a response in the fifo, reading the last byte of the response pops the value from the fifo. If the limit is checked as second condition and the limit is reached the fifo is popped but the packet is not processed. Signed-off-by: NAndreas Oetken <ennoerlangen@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block core fix from Jens Axboe: "A commit in the previous pull request introduce a regression. So far only observed on qemu-sparc64, but it's a general bug. Please pull this single fix to rectify that, thanks" [ And it turns out that it's been seen outside of that qemu-sparc64 case, and is easy to trigger with small number of CPUs and blk-mq enabled by default - Linus ] * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: fix iteration of busy bitmap
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPICA updates from Rafael Wysocki: "This updates the kernel's ACPICA code to upstream revision 20150410 and adds a fix for a GPE handling regression introduced during the 3.19 cycle on top of that. Included are two stable-candidate bug fixes (one of them fixing a 3.16 regression), multiple other fixes and a bunch of cleanups. Specifics: - Fix for a GPE handling regression on Dell Latitude D600 that caused GPE signaling to stop working on that machine, which appears to be due to a hardware glitch, but it used to work and it can be made work again in a relativly straightforward way (Rafael J Wysocki). - Fix for a mutex unlock regression related to the handling of ACPI tables introduced during the 3.16 development cycle (Octavian Purdila). - _REV modification to always return 2 which has been done by all versions of Windows since NT and the firmware people started to use it to distinguish between OSes in their AML and do some silly and wrong things on that basis (Bob Moore). - Fixes and cleanups related to the acpi_physicall_address data type including one stable-candidate fix for an issue occasionally occuring on 64-bit machines running 32-bit kernels where using offsets provided by the firmware may lead to address overflows (Lv Zheng). - External() opcode support infrastructure needed for recompiling disassembled ACPI tables in some cases including interpreter modification to ignore that opcode (Bob Moore). - Support for the "Windows 2015" string in _OSI (Bob Moore). - GPE debug interface change to return values read from hardware registers (Lv Zheng). - Removal of the __DATE__ macro usage in tools (Rasmus Villemoes). - Assorted minor fixes and cleanups (Lv Zheng, Rickard Strandqvist, Bob Moore)" * tag 'acpica-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) ACPICA: Store GPE register enable masks upfront ACPICA: Update version to 20150410. ACPICA: Fix a couple issues with the local printf module. ACPICA: Disassembler: Some cleanup of the table dump module. ACPICA: iASL: Add support for MSDM ACPI table. ACPICA: Update for SLIC ACPI table. ACPICA: Add "//" before ascii output of buffers. ACPICA: Remove unused internal AML opcode. ACPICA: Permanently set _REV to the value '2'. ACPICA: Add "Windows 2015" string to _OSI support. ACPICA: Add infrastructure for External() opcode. ACPICA: iASL: Enhancement for constant folding. ACPICA: iASL/Disassembler: Add option to assume table contains valid AML. ACPICA: Update AML Debugger global variables. ACPICA: Update Resource descriptor dump module. ACPICA: Fix a sscanf format string. ACPICA: Casting changes around acpi_physical_address/acpi_size. ACPICA: Resources: Correct conditional compilation definitions. ACPICA: Utilities: Correct conditional compilation definitions. ACPICA: Tables: Move an iasl specific table function to iasl source file. ...
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由 Chris Metcalf 提交于
The "hypervisor shared" cores are ones that the Tilera hypervisor uses to receive interrupts to manage hypervisor-owned devices. It's a bad idea to try to use those cores with nohz_full, since they will get interrupted unpredictably -- and invisibly to Linux tracing tools, since the interrupts are delivered at a higher privilege level to the Tilera hypervisor. Generate a clear warning at boot up that this doesn't end well for the nohz_full cores in question. Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com>
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由 Tony Lu 提交于
- Add support for ARCH_SUPPORTS_FTRACE_OPS - Replace the instruction in ftrace_call with the bundle {move r10, lr; jal ftrace_stub}, so that the lr contains the right value after returning from ftrace_stub. An alternative fix might be to leave the instruction in ftrace_call alone when it is being updated with ftrace_stub. Signed-off-by: NTony Lu <zlu@ezchip.com> Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com>
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由 Chris Metcalf 提交于
This is necessary for things like reading /proc/kcore, doing ftrace, etc. It happens by default when using huge pages to map the kernel data, but not when using small pages. Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com>
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由 Chris Metcalf 提交于
Add the TIF_NOHZ flag appropriately. Add call to user_exit() on entry to do_work_pending() and on entry to syscalls via do_syscall_trace_enter(), and also the top of do_syscall_trace_exit() just because it's done in x86. Add call to user_enter() at the bottom of do_work_pending() once we have no more work to do before returning to userspace. Wrap all the trap code in exception_enter() / exception_exit(). Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com> Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Johannes Berg 提交于
In commit 04ffcb25 ("net: Add ndo_gso_check") Tom originally added the 'dev' argument to be able to call ndo_gso_check(). Then later, when generalizing this in commit 5f35227e ("net: Generalize ndo_gso_check to ndo_features_check") Jesse removed the call to ndo_gso_check() in netif_needs_gso() by calling the new ndo_features_check() in a different place. This made the 'dev' argument unused. Remove the unused argument and go back to the code as before. Cc: Tom Herbert <therbert@google.com> Cc: Jesse Gross <jesse@nicira.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
When you redirect a VLAN device to any device, you end up with crap in af_packet on the xmit path because hard_header_len is not equal to skb->mac_len. So the redirected packet contains four extra bytes at the start which then gets interpreted as part of the MAC address. This patch fixes this by only pushing skb->mac_len. We also need to fix ifb because it tries to undo the pushing done by act_mirred. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Acked-by: NAlexei Starovoitov <ast@plumgrid.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Two different problems are fixed here : 1) inet_sk_diag_fill() might be called without socket lock held. icsk->icsk_ca_ops can change under us and module be unloaded. -> Access to freed memory. Fix this using rcu_read_lock() to prevent module unload. 2) Some TCP Congestion Control modules provide information but again this is not safe against icsk->icsk_ca_ops change and nla_put() errors were ignored. Some sockets could not get the additional info if skb was almost full. Fix this by returning a status from get_info() handlers and using rcu protection as well. Signed-off-by: NEric Dumazet <edumazet@google.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
tcp_get_info() can be called without holding socket lock, so any socket fields can change under us. Use READ_ONCE() to fetch sk_pacing_rate and sk_max_pacing_rate Fixes: 977cb0ec ("tcp: add pacing_rate information into tcp_info") Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Chris Metcalf 提交于
Tile includes a hypervisor hook to deliver messages to arbitrary tiles, so we can use that to raise an interrupt as soon as possible on our own core. Unfortunately the Tilera hypervisor disabled that support on principle in previous releases, but it will be available in MDE 4.3.4 and later. Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com> Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Colin Ian King 提交于
Cppcheck reports the following issue: [arch/tile/kernel/stack.c:116]: (error) Possible null pointer dereference: p In this case, on reporting on an odd fault, p is set to NULL and immediately afterwords p is dereferenced iff !kbt->profile is false. Rather than doing this check just return NULL rather than falling through to the potential null pointer dereference (since the original intentional outcome would be to return NULL anyhow) for this odd fault case. Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> [tweaked lightly]
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由 Davidlohr Bueso 提交于
In the future mm->exe_file will be done without mmap_sem serialization, thus isolate and reorganize the tile elf code to make the transition easier. Good users will, make use of the more standard get_mm_exe_file(), requiring only holding the mmap_sem to read the value, and relying on reference counting to make sure that the exe file won't dissappear underneath us. The visible effects of this patch are: o We now take and drop the mmap_sem more often. Instead of just in arch_setup_additional_pages(), we also do it in: 1) get_mm_exe_file() 2) to get the mm->vm_file and notify the simulator. [Note that 1) will disappear once we change the locking rules for exe_file.] o We avoid getting a free page and doing d_path() while holding the mmap_sem. This requires reordering the checks. Signed-off-by: NDavidlohr Bueso <dbueso@suse.de> Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com>
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由 Chris Metcalf 提交于
To be compatible with the generic get_compat_sigevent(), the copy_siginfo_to_user32() and thus copy_siginfo_from_user32() have to use si_int instead of si_ptr. Using si_ptr means that for the case of ILP32 compat code running in big-endian mode, we would end up copying the high 32 bits of the pointer value into si_int instead of the desired low 32 bits. Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com> Cc: Catalin Marinas <catalin.marinas@arm.com>
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- 17 4月, 2015 6 次提交
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由 Jens Axboe 提交于
Commit 889fa31f was a bit too eager in reducing the loop count, so we ended up missing queues in some configurations. Ensure that our division rounds up, so that's not the case. Reported-by: NGuenter Roeck <linux@roeck-us.net> Fixes: 889fa31f ("blk-mq: reduce unnecessary software queue looping") Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Linus Torvalds 提交于
Merge third patchbomb from Andrew Morton: - various misc things - a couple of lib/ optimisations - provide DIV_ROUND_CLOSEST_ULL() - checkpatch updates - rtc tree - befs, nilfs2, hfs, hfsplus, fatfs, adfs, affs, bfs - ptrace fixes - fork() fixes - seccomp cleanups - more mmap_sem hold time reductions from Davidlohr * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (138 commits) proc: show locks in /proc/pid/fdinfo/X docs: add missing and new /proc/PID/status file entries, fix typos drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic Documentation/spi/spidev_test.c: fix warning drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type .gitignore: ignore *.tar MAINTAINERS: add Mediatek SoC mailing list tomoyo: reduce mmap_sem hold for mm->exe_file powerpc/oprofile: reduce mmap_sem hold for exe_file oprofile: reduce mmap_sem hold for mm->exe_file mips: ip32: add platform data hooks to use DS1685 driver lib/Kconfig: fix up HAVE_ARCH_BITREVERSE help text x86: switch to using asm-generic for seccomp.h sparc: switch to using asm-generic for seccomp.h powerpc: switch to using asm-generic for seccomp.h parisc: switch to using asm-generic for seccomp.h mips: switch to using asm-generic for seccomp.h microblaze: use asm-generic for seccomp.h arm: use asm-generic for seccomp.h seccomp: allow COMPAT sigreturn overrides ...
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由 Andrey Vagin 提交于
Let's show locks which are associated with a file descriptor in its fdinfo file. Currently we don't have a reliable way to determine who holds a lock. We can find some information in /proc/locks, but PID which is reported there can be wrong. For example, a process takes a lock, then forks a child and dies. In this case /proc/locks contains the parent pid, which can be reused by another process. $ cat /proc/locks ... 6: FLOCK ADVISORY WRITE 324 00:13:13431 0 EOF ... $ ps -C rpcbind PID TTY TIME CMD 332 ? 00:00:00 rpcbind $ cat /proc/332/fdinfo/4 pos: 0 flags: 0100000 mnt_id: 22 lock: 1: FLOCK ADVISORY WRITE 324 00:13:13431 0 EOF $ ls -l /proc/332/fd/4 lr-x------ 1 root root 64 Mar 5 14:43 /proc/332/fd/4 -> /run/rpcbind.lock $ ls -l /proc/324/fd/ total 0 lrwx------ 1 root root 64 Feb 27 14:50 0 -> /dev/pts/0 lrwx------ 1 root root 64 Feb 27 14:50 1 -> /dev/pts/0 lrwx------ 1 root root 64 Feb 27 14:49 2 -> /dev/pts/0 You can see that the process with the 324 pid doesn't hold the lock. This information is required for proper dumping and restoring file locks. Signed-off-by: NAndrey Vagin <avagin@openvz.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Acked-by: NJeff Layton <jlayton@poochiereds.net> Acked-by: N"J. Bruce Fields" <bfields@fieldses.org> Acked-by: NCyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nathan Scott 提交于
docs: add missing and new /proc/PID/status file entries, fix typos Signed-off-by: NNathan Scott <nathans@redhat.com> Signed-off-by: NChen Hanxiao <chenhanxiao@cn.fujitsu.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ben Dooks 提交于
Change the __raw IO calls to readl/write_relaxed which makes the driver endian agnostic to run properly on big endian systems. Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Andrew Victor <linux@maxim.org.za> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
Documentation/spi/spidev_test.c:83:5: warning: no previous prototype for 'unespcape' [-Wmissing-prototypes] fix spelling too. Acked-by: NMark Brown <broonie@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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