- 17 10月, 2013 2 次提交
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由 Davidlohr Bueso 提交于
The initial documentation was a bit incomplete, update accordingly. [akpm@linux-foundation.org: make it more readable in 80 columns] Signed-off-by: NDavidlohr Bueso <davidlohr@hp.com> Acked-by: NManfred Spraul <manfred@colorfullife.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Rientjes 提交于
for_each_online_cpu() needs the protection of {get,put}_online_cpus() so cpu_online_mask doesn't change during the iteration. cpu_hotplug.lock is held while a cpu is going down, it's a coarse lock that is used kernel-wide to synchronize cpu hotplug activity. Memcg has a cpu hotplug notifier, called while there may not be any cpu hotplug refcounts, which drains per-cpu event counts to memcg->nocpu_base.events to maintain a cumulative event count as cpus disappear. Without get_online_cpus() in mem_cgroup_read_events(), it's possible to account for the event count on a dying cpu twice, and this value may be significantly large. In fact, all memcg->pcp_counter_lock use should be nested by {get,put}_online_cpus(). This fixes that issue and ensures the reported statistics are not vastly over-reported during cpu hotplug. Signed-off-by: NDavid Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 10月, 2013 4 次提交
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git://git.secretlab.ca/git/linux由 Linus Torvalds 提交于
Pull device tree fixes and reverts from Grant Likely: "One bug fix and three reverts. The reverts back out the slightly controversial feeding the entire device tree into the random pool and the reserved-memory binding which isn't fully baked yet. Expect the reserved-memory patches at least to resurface for v3.13. The bug fixes removes a scary but harmless warning on SPARC that was introduced in the v3.12 merge window. v3.13 will contain a proper fix that makes the new code work on SPARC. On the plus side, the diffstat looks *awesome*. I love removing lines of code" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: Revert "drivers: of: add initialization code for dma reserved memory" Revert "ARM: init: add support for reserved memory defined by device tree" Revert "of: Feed entire flattened device tree into the random pool" of: fix unnecessary warning on missing /cpus node
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git://git.linaro.org/people/mszyprowski/linux-dma-mapping由 Linus Torvalds 提交于
Pull DMA-mapping fix from Marek Szyprowski: "A bugfix for the IOMMU-based implementation of dma-mapping subsystem for ARM architecture" * 'fixes-for-v3.12' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: ARM: dma-mapping: Always pass proper prot flags to iommu_map()
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull kvm fix from Gleb Natapov. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Enable pvspinlock after jump_label_init() to avoid VM hang
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip由 Linus Torvalds 提交于
Pull Xen fixes from Stefano Stabellini: "A small fix for Xen on x86_32 and a build fix for xen-tpmfront on arm64" * tag 'stable/for-linus-3.12-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Fix possible user space selector corruption tpm: xen-tpmfront: fix missing declaration of xen_domain
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- 15 10月, 2013 10 次提交
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由 Raghavendra K T 提交于
We use jump label to enable pv-spinlock. With the changes in (442e0973 Merge branch 'x86/jumplabel'), the jump label behaviour has changed that would result in eventual hang of the VM since we would end up in a situation where slow path locks would halt the vcpus but we will not be able to wakeup the vcpu by lock releaser using unlock kick. Similar problem in Xen and more detailed description is available in a945928e (xen: Do not enable spinlocks before jump_label_init() has executed) This patch splits kvm_spinlock_init to separate jump label changes with pvops patching and also make jump label enabling after jump_label_init(). Signed-off-by: NRaghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NGleb Natapov <gleb@redhat.com>
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由 Marek Szyprowski 提交于
This reverts commit 9d8eab7a. There is still no consensus on the bindings for the reserved memory and various drawbacks of the proposed solution has been shown, so the best now is to revert it completely and start again from scratch later. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NGrant Likely <grant.likely@linaro.org>
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由 Marek Szyprowski 提交于
This reverts commit 10bcdfb8. There is no consensus on the bindings for the reserved memory, so the code for handing it will be reverted. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NGrant Likely <grant.likely@linaro.org>
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git://github.com/awilliam/linux-vfio由 Linus Torvalds 提交于
Pull vfio fix from Alex Williamson: "Fix an incorrect break out of nested loop in iommu mapping code" * tag 'vfio-v3.12-rc5' of git://github.com/awilliam/linux-vfio: VFIO: vfio_iommu_type1: fix bug caused by break in nested loop
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
Pull infiniband updates from Roland Dreier: "Last batch of IB changes for 3.12: many mlx5 hardware driver fixes plus one trivial semicolon cleanup" * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB: Remove unnecessary semicolons IB/mlx5: Ensure proper synchronization accessing memory IB/mlx5: Fix alignment of reg umr gather buffers IB/mlx5: Fix eq names to display nicely in /proc/interrupts mlx5: Fix error code translation from firmware to driver IB/mlx5: Fix opt param mask according to firmware spec mlx5: Fix opt param mask for sq err to rts transition IB/mlx5: Disable atomic operations mlx5: Fix layout of struct mlx5_init_seg mlx5: Keep polling to reclaim pages while any returned IB/mlx5: Avoid async events on invalid port number IB/mlx5: Decrease memory consumption of mr caches mlx5: Remove checksum on command interface commands IB/mlx5: Fix memory leak in mlx5_ib_create_srq IB/mlx5: Flush cache workqueue before destroying it IB/mlx5: Fix send work queue size calculation
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由 Roland Dreier 提交于
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由 Joe Perches 提交于
These aren't necessary after switch blocks. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NRoland Dreier <roland@purestorage.com>
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git://git.linaro.org/people/rmk/linux-arm由 Linus Torvalds 提交于
Pull ARM fixes from Russell King: "Some more ARM fixes, nothing particularly major here. The biggest change is to fix the SMP_ON_UP code so that it works with TI's Aegis cores" * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7851/1: check for number of arguments in syscall_get/set_arguments() ARM: 7846/1: Update SMP_ON_UP code to detect A9MPCore with 1 CPU devices ARM: 7845/1: sharpsl_param.c: fix invalid memory access for pxa devices ARM: 7843/1: drop asm/types.h from generic-y ARM: 7842/1: MCPM: don't explode if invoked without being initialized first
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux由 Linus Torvalds 提交于
Pull SLAB fix from Pekka Enberg: "A regression fix for overly eager slab cache name checks" * 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: slab_common: Do not check for duplicate slab names
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPI and power management fixes from Rafael Wysocki: "These fix two recent bugs in ACPIPHP (ACPI-based PCI hotplug) and update a bunch of web links and e-mail addresses in MAINTAINERS, docs and Kconfig that either are stale or will expire soon. Specifics: - The WARN_ON() in acpiphp_enumerate_slots() triggers as a false positive in some cases, so drop it. - Add a missing pci_dev_put() to an error code path in acpiphp_enumerate_slots(). - Replace my old e-mail address that's going to expire with a new one. - Update ACPI web links and git tree information in MAINTAINERS. - Update links to the Linux-ACPI project's page in MAINTAINERS. - Update some stale links and e-mail addresses under Documentation and in the ACPI Kconfig file" * tag 'pm+acpi-3.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / hotplug / PCI: Drop WARN_ON() from acpiphp_enumerate_slots() ACPI / hotplug / PCI: Fix error code path in acpiphp_enumerate_slots() ACPI / PM / Documentation: Replace outdated project links and addresses MAINTAINERS / ACPI: Update links to the Linux-ACPI project web page MAINTAINERS / ACPI: Update links and git tree information MAINTAINERS / Documentation: Update Rafael's e-mail address
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- 14 10月, 2013 13 次提交
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由 Grant Likely 提交于
This reverts commit 109b6236. Tim Bird expressed concern that this will have a bad effect on boot time, and while simple tests have shown it to be okay with simple tree, a device tree blob can potentially be quite large and add_device_randomness() is not a fast function. Rather than do this for all platforms unconditionally, I'm reverting this patch and would like to see it revisited. Instead of feeding the entire tree into the random pool, it would probably be appropriate to hash the tree and feed the hash result into the pool. There really isn't a lot of randomness in a device tree anyway. In the majority of cases only a handful of properties are going to be different between machines with the same baseboard. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Not all DT platforms have all the cpus collected under a /cpus node. That just happens to be a details of FDT, ePAPR and PowerPC platforms. Sparc does something different, but unfortunately the current code complains with a warning if /cpus isn't there. This became a problem with commit f86e4718, "driver/core cpu: initialize of_node in cpu's device structure", which caused the function to get called for all architectures. This commit is a temporary fix to fail silently if the cpus node isn't present. A proper fix will come later to allow arch code to provide a custom mechanism for decoding the CPU hwid if the 'reg' property isn't appropriate. Signed-off-by: NGrant Likely <grant.likely@linaro.org> Cc: David Miller <davem@davemloft.net> Cc: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com> Cc: Rob Herring <rob.herring@calxeda.com>
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由 Linus Torvalds 提交于
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git://www.linux-watchdog.org/linux-watchdog由 Linus Torvalds 提交于
Pull watchdog fixes from Wim Van Sebroeck: "This will fix a deadlock on the ts72xx_wdt driver, fix bitmasks in the kempld_wdt driver and fix a section mismatch in the sunxi_wdt driver" * git://www.linux-watchdog.org/linux-watchdog: watchdog: sunxi: Fix section mismatch watchdog: kempld_wdt: Fix bit mask definition watchdog: ts72xx_wdt: locking bug in ioctl
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由 Maxime Ripard 提交于
This driver has a section mismatch, for probe and remove functions, leading to the following warning during the compilation. WARNING: drivers/watchdog/built-in.o(.data+0x24): Section mismatch in reference from the variable sunxi_wdt_driver to the function .init.text:sunxi_wdt_probe() The variable sunxi_wdt_driver references the function __init sunxi_wdt_probe() Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Jingoo Han 提交于
STAGE_CFG bits are defined as [5:4] bits. However, '(((x) & 0x30) << 4)' handles [9:8] bits. Thus, it should be fixed in order to handle [5:4] bits. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Dan Carpenter 提交于
Calling the WDIOC_GETSTATUS & WDIOC_GETBOOTSTATUS and twice will cause a interruptible deadlock. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 AKASHI Takahiro 提交于
In ftrace_syscall_enter(), syscall_get_arguments(..., 0, n, ...) if (i == 0) { <handle ORIG_r0> ...; n--;} memcpy(..., n * sizeof(args[0])); If 'number of arguments(n)' is zero and 'argument index(i)' is also zero in syscall_get_arguments(), none of arguments should be copied by memcpy(). Otherwise 'n--' can be a big positive number and unexpected amount of data will be copied. Tracing system calls which take no argument, say sync(void), may hit this case and eventually make the system corrupted. This patch fixes the issue both in syscall_get_arguments() and syscall_set_arguments(). Cc: <stable@vger.kernel.org> Acked-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NAKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc由 Linus Torvalds 提交于
Pull ARM SoC fixes from Olof Johansson: "A small batch of fixes this week, mostly OMAP related. Nothing stands out as particularly controversial. Also a fix for a 3.12-rc1 timer regression for Exynos platforms, including the Chromebooks" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: exynos: dts: Update 5250 arch timer node with clock frequency ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config ARM: mach-omap2: board-generic: fix undefined symbol ARM: dts: Fix pinctrl mask for omap3 ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT
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由 Yuvaraj Kumar C D 提交于
Without the "clock-frequency" property in arch timer node, could able to see the below crash dump. [<c0014e28>] (unwind_backtrace+0x0/0xf4) from [<c0011808>] (show_stack+0x10/0x14) [<c0011808>] (show_stack+0x10/0x14) from [<c036ac1c>] (dump_stack+0x7c/0xb0) [<c036ac1c>] (dump_stack+0x7c/0xb0) from [<c01ab760>] (Ldiv0_64+0x8/0x18) [<c01ab760>] (Ldiv0_64+0x8/0x18) from [<c0062f60>] (clockevents_config.part.2+0x1c/0x74) [<c0062f60>] (clockevents_config.part.2+0x1c/0x74) from [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c) [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c) from [<c02b8e8c>] (arch_timer_setup+0xa8/0x134) [<c02b8e8c>] (arch_timer_setup+0xa8/0x134) from [<c04b47b4>] (arch_timer_init+0x1f4/0x24c) [<c04b47b4>] (arch_timer_init+0x1f4/0x24c) from [<c04b40d8>] (clocksource_of_init+0x34/0x58) [<c04b40d8>] (clocksource_of_init+0x34/0x58) from [<c049ed8c>] (time_init+0x20/0x2c) [<c049ed8c>] (time_init+0x20/0x2c) from [<c049b95c>] (start_kernel+0x1e0/0x39c) THis is because the Exynos u-boot, for example on the Chromebooks, doesn't set up the CNTFRQ register as expected by arch_timer. Instead, we have to specify the frequency in the device tree like this. Signed-off-by: NYuvaraj Kumar C D <yuvaraj.cd@samsung.com> [olof: Changed subject, added comment, elaborated on commit message] Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Olof Johansson 提交于
Merge tag 'fixes-against-v3.12-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: Few fixes for omap3 related hangs and errors that people have noticed now that people are actually using the device tree based booting for omap3. Also one regression fix for timer compile for dra7xx when omap5 is not selected, and a LED regression fix for n900. * tag 'fixes-against-v3.12-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config ARM: mach-omap2: board-generic: fix undefined symbol ARM: dts: Fix pinctrl mask for omap3 ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT Signed-off-by: NOlof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux由 Linus Torvalds 提交于
Pull parisc fixes from Helge Deller: "This patchset includes a bugfix to prevent a kernel crash when memory in page zero is accessed by the kernel itself, e.g. via probe_kernel_read(). Furthermore we now export flush_cache_page() which is needed (indirectly) by the lustre filesystem. The other patches remove unused functions and optimizes the page fault handler to only evaluate variables if needed, which again protects against possible kernel crashes" * 'parisc-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: let probe_kernel_read() capture access to page zero parisc: optimize variable initialization in do_page_fault parisc: fix interruption handler to respect pagefault_disable() parisc: mark parisc_terminate() noreturn and cold. parisc: remove unused syscall_ipi() function. parisc: kill SMP single function call interrupt parisc: Export flush_cache_page() (needed by lustre)
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git://git.infradead.org/users/vkoul/slave-dma由 Linus Torvalds 提交于
Pull slave-dmaengine fixes from Vinod Koul: "Another week, time to send another fixes request taking time out of extended weekend for the festivities in this part of the world. We have two fixes from Sergei for rcar driver and one fixing memory leak of edma driver by Geyslan" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dma: edma.c: remove edma_desc leakage rcar-hpbdma: add parameter to set_slave() method rcar-hpbdma: remove shdma_free_irq() calls
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- 13 10月, 2013 11 次提交
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由 Helge Deller 提交于
Signed-off-by: NHelge Deller <deller@gmx.de>
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由 John David Anglin 提交于
The attached change defers the initialization of the variables tsk, mm and flags until they are needed. As a result, the code won't crash if a kernel probe is done with a corrupt context and the code will be better optimized. Signed-off-by: NJohn David Anglin <dave.anglin@bell.net> Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Helge Deller 提交于
Running an "echo t > /proc/sysrq-trigger" crashes the parisc kernel. The problem is, that in print_worker_info() we try to read the workqueue info via the probe_kernel_read() functions which use pagefault_disable() to avoid crashes like this: probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq)); probe_kernel_read(&wq, &pwq->wq, sizeof(wq)); probe_kernel_read(name, wq->name, sizeof(name) - 1); The problem here is, that the first probe_kernel_read(&pwq) might return zero in pwq and as such the following probe_kernel_reads() try to access contents of the page zero which is read protected and generate a kernel segfault. With this patch we fix the interruption handler to call parisc_terminate() directly only if pagefault_disable() was not called (in which case preempt_count()==0). Otherwise we hand over to the pagefault handler which will try to look up the faulting address in the fixup tables. Signed-off-by: NHelge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # v3.0+ Signed-off-by: NJohn David Anglin <dave.anglin@bell.net> Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Helge Deller 提交于
Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Helge Deller 提交于
Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Jiang Liu 提交于
Commit 9a46ad6d "smp: make smp_call_function_many() use logic similar to smp_call_function_single()" has unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Signed-off-by: NJiang Liu <jiang.liu@huawei.com> Cc: Jiang Liu <liuj97@gmail.com> Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Geert Uytterhoeven 提交于
ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Linus Torvalds 提交于
Olga reported that file descriptors opened with O_PATH do not work with fstatfs(), found during further development of ksh93's thread support. There is no reason to not allow O_PATH file descriptors here (fstatfs is very much a path operation), so use "fdget_raw()". See commit 55815f70 ("vfs: make O_PATH file descriptors usable for 'fstat()'") for a very similar issue reported for fstat() by the same team. Reported-and-tested-by: Nольга крыжановская <olga.kryzhanovska@gmail.com> Acked-by: NAl Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org # O_PATH introduced in 3.0+ Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
Pull ext4 bugfixes from Ted Ts'o: "A bug fix and performance regression fix for ext4" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix memory leak in xattr ext4: fix performance regression in writeback of random writes
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs由 Linus Torvalds 提交于
Pull btrfs fixes from Chris Mason: "We've got more bug fixes in my for-linus branch: One of these fixes another corner of the compression oops from last time. Miao nailed down some problems with concurrent snapshot deletion and drive balancing. I kept out one of his patches for more testing, but these are all stable" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix oops caused by the space balance and dead roots Btrfs: insert orphan roots into fs radix tree Btrfs: limit delalloc pages outside of find_delalloc_range Btrfs: use right root when checking for hash collision
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound由 Linus Torvalds 提交于
Pull sound fixes from Takashi Iwai: "All stable fixes except for a trivial headset mic fixup: the removal of bogus frame checks in snd-usb-usx2y driver that have regressed in the recent kernel versions, the HD-audio HDMI channel map fix, and a few HD-audio device-specific fixes" * tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Sony VAIO Pro 13 (haswell) now has a working headset jack ALSA: hda - Add a headset mic model for ALC269 and friends ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model) ALSA: hda - Add fixup for ASUS N56VZ ALSA: hda - hdmi: Fix channel map switch not taking effect ALSA: hda - Fix mono speakers and headset mic on Dell Vostro 5470 ALSA: snd-usb-usx2y: remove bogus frame checks
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