- 31 8月, 2016 22 次提交
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由 Andy Shevchenko 提交于
Intel Quark UART uses DesignWare DMA IP. Though the DMA IP is connected in such way that handshake interface uses inverted polarity. We have to provide a possibility to set this in the DMA driver when configuring a channel. Introduce a new member of custom slave configuration called 'hs_polarity' and set active low polarity in case this value is 'true'. Acked-by: NVinod Koul <vinod.koul@intel.com> Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: NBryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Andy Shevchenko 提交于
It seems we need to extend custom slave configuration by one more member to support Intel Quart UART. It becomes a burden to manage all members of struct dw_dma_slave one-by-one. Replace the set of fields by embedding struct dw_dma_slave into struct dw_dma_chan. Acked-by: NVinod Koul <vinod.koul@intel.com> Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: NBryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Florian Vallee 提交于
Previously sc16is7xx_power was called in order to set the device to a low power mode. However since SC16IS7XX_EFR_ENABLE_BIT was not set beforehand this suspend request had not effect. Also, soft-reset the device prior to port initialization. It may otherwise be in a state (interrupt pending, fifo not empty) which prevents it from sleeping. Signed-off-by: NFlorian Vallee <fvallee@eukrea.fr> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Eddie Huang 提交于
mediatek can support baud rate up to 4M. the 'uart_get_baud_rate' function will limit the max baud rate. Modify max baud to remove the limit. Signed-off-by: NLong Cheng <long.cheng@mediatek.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Julia Lawall 提交于
Use of_property_read_bool to check for the existence of a property. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e1,e2; statement S2,S1; @@ - if (of_get_property(e1,e2,NULL)) + if (of_property_read_bool(e1,e2)) S1 else S2 // </smpl> Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Bhuvanchandra DV 提交于
Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Enable RS485 feature by either using ioctrl 'TIOCSRS485' or enable it in the device tree by setting 'linux,rs485-enabled-at-boot-time' property. Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Bhuvanchandra DV 提交于
When DMA mode is enabled one need to make sure the DMA channels are idle before entering suspend mode especially when UART ports which are set as wakeup source and console port with no_console_suspend is set. This patch takes care of gracefully releasing DMA channels for the above two cases and start the DMA at resume. Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Bhuvanchandra DV 提交于
Drop PIO to DMA switching and use scatter/gather DMA for Tx path to improve performance. Some part of the code is borrowed from imx serial driver. Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Bhuvanchandra DV 提交于
The initial approach of DMA implementatin for RX is inefficient due to switching from PIO to DMA, this leads to overruns especially on instances with the smaller FIFO. To address these issues this patch uses a cyclic DMA for receiver path. Some part of the code is borrowed from atmel serial driver. Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Bhuvanchandra DV 提交于
By default the driver always configure the mode as 8s1 even when 8m1 mode is selected. Fix this by adding support to control the space/mark bit. Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Stefan Agner 提交于
Commit 8e4934c6 ("tty: serial: fsl_lpuart: clear receive flag on FIFO flush") implemented clearing of the receive flag by reading the status register only. It turned out that even though we flush the FIFO afterwards, a explicit read of the data register is still required. This leads to a FIFO underrun. To avoid this, follow the advice in the overrun "Operation section": Unconditionally clear RXUF after using RXFLUSH. Signed-off-by: NStefan Agner <stefan@agner.ch> Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Stefan Agner 提交于
Add suspend/resume support. Signed-off-by: NStefan Agner <stefan@agner.ch> Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Stefan Agner 提交于
Currently the tx_empty callback only considers the Transmit Complete Flag (TC). The reference manual is not quite clear if the TC flag covers the TX FIFO too. Debug prints on real hardware have shown that from time to time the TC flag is asserted (indicating Transmitter idle) while there are still data in the TX FIFO. Hence, in this case the serial core will call the shutdown callback even though there are data remaining in the TX FIFO buffers. Avoid early shutdowns by considering the TX FIFO empty flag too. Also avoid theoretical race conditions between DMA and the driver by checking whether the TX DMA is in progress too. Signed-off-by: NStefan Agner <stefan@agner.ch> Signed-off-by: NBhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Kefeng Wang 提交于
It should check the data->pclk, not data->clk when get apb_pclk. Fixes: c8ed99d4("serial: 8250_dw: Add support for deferred probing") Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com> Tested-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Christophe JAILLET 提交于
The 2nd parameter of 'find_first_zero_bit' is the number of bits to search. In this case, we are passing 'sizeof(vt8500_ports_in_use)'. 'vt8500_ports_in_use' is an 'unsigned long'. So the sizeof is likely to return 4 on a 32 bits kernel. A few lines below, we check if it is below VT8500_MAX_PORTS, which is 6. It is likely that the number of bits in a long was expected here. In order to fix it: - use DECLARE_BITMAP when declaring the vt8500_ports_in_use - use VT8500_MAX_PORTS as a maximum value when checking/setting bits in this bitmap - modify code now that 'vt8500_ports_in_use' has become a pointer because of the use of DECLARE_BITMAP It has been spotted by the following coccinelle script: @@ expression ret, x; @@ * ret = \(find_first_bit \| find_first_zero_bit\) (x, sizeof(...)); Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rob Herring 提交于
tty_port_close handles much of the common parts of tty close. Convert uart_close to use it and move the serial_core specific parts into tty_port.shutdown function. This will be needed to use tty_port functions directly from in kernel clients. This change causes ops->stop_rx() to be called after uart_wait_until_sent() is called which I think should be fine. Otherwise, the sequence of the close should be the same. Cc: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: NRob Herring <robh@kernel.org> Acked-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rob Herring 提交于
tty_port_open handles much of the common parts of tty opening. Convert uart_open to use it and move the serial_core specific parts into tty_port.activate function. This will be needed to use tty_port functions directly from in kernel clients. The tricky part is uart_port_startup can return positive values to allow setserial to configure the port. We now return the positive value to tty_port_open so that the tty is not marked as initialized and then set the return value in uart_open to 0. Cc: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: NRob Herring <robh@kernel.org> Acked-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Krzysztof Kozlowski 提交于
The Samsung serial driver registered for CPU frequency transitions to recalculate its clock when ARM clock frequency changes. This is needed only on S3C24xx platform so limit the ifdef to respective cpufreq driver. On S3C24xx the ratio ratio between frequencies of UART's parent clock (pclk) and ARM's parent clock (fclk) remains fixed. Therefore when ARM clock frequency goes down, the serial is also affected. Suggested-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Ludovic Desroches 提交于
The USART device provides a fractional baud rate generator to get a more accurate baud rate. It can be used only when the USART is configured in 'normal mode' and this feature is not available on AT91RM9200 SoC. Signed-off-by: NLudovic Desroches <ludovic.desroches@atmel.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Shawn Guo 提交于
There is no Peripheral Identification Registers on ZTE PL011 device, so although the driver amba-pl011 is ready to work for ZTE device, the device cannot be probed by the driver at all. With arm,primecell-periphid DT bindings (bindings/arm/primecell.txt) in place, it should be the cleanest the way to use a pseudo-ID to probe the device from AMBA bus. We create an unofficial vendor number AMBA_VENDOR_LINUX, which will practically never become an official vendor ID, and takes Configuration, Revision number, and Part number as input to compose a pseudo-ID for ZTE device. Also, since we start using vendor_zte to probe ZTE device, the __maybe_unused for vendor_zte is removed. Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk> Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Shawn Guo 提交于
ZTE PL011 device has a fixed FIFO size 16. Let's add a .get_fifosize hook for it. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NRussell King <rmk+kernel@armlinux.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Shawn Guo 提交于
For some reason we do not really understand, ZTE hardware designers choose to define PL011 Flag Register bit positions differently from standard ones as below. Bit Standard ZTE ----------------------------------- CTS 0 1 DSR 1 3 BUSY 3 8 RI 8 0 Let's define these bits into vendor data and get ZTE PL011 supported properly. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NRussell King <rmk+kernel@armlinux.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 8月, 2016 3 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux由 Linus Torvalds 提交于
Pull thermal updates from Zhang Rui: - Fix a race condition when updating cooling device, which may lead to a situation where a thermal governor never updates the cooling device. From Michele Di Giorgio. - Fix a zero division error when disabling the forced idle injection from the intel powerclamp. From Petr Mladek. - Add suspend/resume callback for intel_pch_thermal thermal driver. From Srinivas Pandruvada. - Another two fixes for clocking cooling driver and hwmon sysfs I/F. From Michele Di Giorgio and Kuninori Morimoto. [ Hmm. That suspend/resume callback for intel_pch_thermal doesn't look like a fix, but I'm letting it slide.. - Linus ] * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: clock_cooling: Fix missing mutex_init() thermal: hwmon: EXPORT_SYMBOL_GPL for thermal hwmon sysfs thermal: fix race condition when updating cooling device thermal/powerclamp: Prevent division by zero when counting interval thermal: intel_pch_thermal: Add suspend/resume callback
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu由 Linus Torvalds 提交于
Pull m68knommu fix from Greg Ungerer: "This contains only a single fix for a register corruption problem on certain types of m68k flat format binaries" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: fix user a5 register being overwritten
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- 14 8月, 2016 4 次提交
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由 Linus Torvalds 提交于
Merge tag 'fixes-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull h8300 and unicore32 architecture fixes from Guenter Roeck: "Two patches to fix h8300 and unicore32 builds. unicore32 builds have been broken since v4.6. The fix has been available in -next since March of this year. h8300 builds have been broken since the last commit window. The fix has been available in -next since June of this year" * tag 'fixes-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: h8300: Add missing include file to asm/io.h unicore32: mm: Add missing parameter to arch_vma_access_permitted
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux由 Linus Torvalds 提交于
Pull arm64 fixes from Catalin Marinas: - support for nr_cpus= command line argument (maxcpus was previously changed to allow secondary CPUs to be hot-plugged) - ARM PMU interrupt handling fix - fix potential TLB conflict in the hibernate code - improved handling of EL1 instruction aborts (better error reporting) - removal of useless jprobes code for stack saving/restoring - defconfig updates * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO arm64: defconfig: add options for virtualization and containers arm64: hibernate: handle allocation failures arm64: hibernate: avoid potential TLB conflict arm64: Handle el1 synchronous instruction aborts cleanly arm64: Remove stack duplicating code from jprobes drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property drivers/perf: arm-pmu: convert arm_pmu_mutex to spinlock arm64: Support hard limit of cpu count by nr_cpus
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fixes from Radim Krčmář: "KVM: - lock kvm_device list to prevent corruption on device creation. PPC: - split debugfs initialization from creation of the xics device to unlock the newly taken kvm lock earlier. s390: - prevent userspace from triggering two WARN_ON_ONCE. MIPS: - fix several issues in the management of TLB faults (Cc: stable)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: MIPS: KVM: Propagate kseg0/mapped tlb fault errors MIPS: KVM: Fix gfn range check in kseg0 tlb faults MIPS: KVM: Add missing gfn range check MIPS: KVM: Fix mapped fault broken commpage handling KVM: Protect device ops->create and list_add with kvm->lock KVM: PPC: Move xics_debugfs_init out of create KVM: s390: reset KVM_REQ_MMU_RELOAD if mapping the prefix failed KVM: s390: set the prefix initially properly
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block fixes from Jens Axboe: - an NVMe fix from Gabriel, fixing a suspend/resume issue on some setups - addition of a few missing entries in the block queue sysfs documentation, from Joe - a fix for a sparse shadow warning for the bvec iterator, from Johannes - a writeback deadlock involving raid issuing barriers, and not flushing the plug when we wakeup the flusher threads. From Konstantin - a set of patches for the NVMe target/loop/rdma code, from Roland and Sagi * 'for-linus' of git://git.kernel.dk/linux-block: bvec: avoid variable shadowing warning doc: update block/queue-sysfs.txt entries nvme: Suspend all queues before deletion mm, writeback: flush plugged IO in wakeup_flusher_threads() nvme-rdma: Remove unused includes nvme-rdma: start async event handler after reconnecting to a controller nvmet: Fix controller serial number inconsistency nvmet-rdma: Don't use the inline buffer in order to avoid allocation for small reads nvmet-rdma: Correctly handle RDMA device hot removal nvme-rdma: Make sure to shutdown the controller if we can nvme-loop: Remove duplicate call to nvme_remove_namespaces nvme-rdma: Free the I/O tags when we delete the controller nvme-rdma: Remove duplicate call to nvme_remove_namespaces nvme-rdma: Fix device removal handling nvme-rdma: Queue ns scanning after a sucessful reconnection nvme-rdma: Don't leak uninitialized memory in connect request private data
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- 13 8月, 2016 11 次提交
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由 Guenter Roeck 提交于
h8300 builds fail with arch/h8300/include/asm/io.h:9:15: error: unknown type name ‘u8’ arch/h8300/include/asm/io.h:15:15: error: unknown type name ‘u16’ arch/h8300/include/asm/io.h:21:15: error: unknown type name ‘u32’ and many related errors. Fixes: 23c82d41bdf4 ("kexec-allow-architectures-to-override-boot-mapping-fix") Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Guenter Roeck 提交于
unicore32 fails to compile with the following errors. mm/memory.c: In function ‘__handle_mm_fault’: mm/memory.c:3381: error: too many arguments to function ‘arch_vma_access_permitted’ mm/gup.c: In function ‘check_vma_flags’: mm/gup.c:456: error: too many arguments to function ‘arch_vma_access_permitted’ mm/gup.c: In function ‘vma_permits_fault’: mm/gup.c:640: error: too many arguments to function ‘arch_vma_access_permitted’ Fixes: d61172b4 ("mm/core, x86/mm/pkeys: Differentiate instruction fetches") Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Acked-by: NGuan Xuetao <gxt@mprc.pku.edu.cn>
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git://github.com/awilliam/linux-vfio由 Linus Torvalds 提交于
Pull VFIO fix from Alex Williamson: "Fix oops when dereferencing empty data (Alex Williamson)" * tag 'vfio-v4.8-rc2' of git://github.com/awilliam/linux-vfio: vfio/pci: Fix NULL pointer oops in error interrupt setup handling
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git://linux-nfs.org/~bfields/linux由 Linus Torvalds 提交于
Pull nfsd fixes from Bruce Fields: "Fixes for the dentry refcounting leak I introduced in 4.8-rc1, and for races in the LOCK code which appear to go back to the big nfsd state lock removal from 3.17" * tag 'nfsd-4.8-1' of git://linux-nfs.org/~bfields/linux: nfsd: don't return an unhashed lock stateid after taking mutex nfsd: Fix race between FREE_STATEID and LOCK nfsd: fix dentry refcounting on create
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management fixes from Rafael Wysocki: "Two hibernation fixes allowing it to work with the recently added randomization of the kernel identity mapping base on x86-64 and one cpufreq driver regression fix. Specifics: - Fix the x86 identity mapping creation helpers to avoid the assumption that the base address of the mapping will always be aligned at the PGD level, as it may be aligned at the PUD level if address space randomization is enabled (Rafael Wysocki). - Fix the hibernation core to avoid executing tracing functions before restoring the processor state completely during resume (Thomas Garnier). - Fix a recently introduced regression in the powernv cpufreq driver that causes it to crash due to an out-of-bounds array access (Akshay Adiga)" * tag 'pm-4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / hibernate: Restore processor state before using per-CPU variables x86/power/64: Always create temporary identity mapping correctly cpufreq: powernv: Fix crash in gpstate_timer_handler()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull x86 fixes from Ingo Molnar: "This is bigger than usual - the reason is partly a pent-up stream of fixes after the merge window and partly accidental. The fixes are: - five patches to fix a boot failure on Andy Lutomirsky's laptop - four SGI UV platform fixes - KASAN fix - warning fix - documentation update - swap entry definition fix - pkeys fix - irq stats fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic/x2apic, smp/hotplug: Don't use before alloc in x2apic_cluster_probe() x86/efi: Allocate a trampoline if needed in efi_free_boot_services() x86/boot: Rework reserve_real_mode() to allow multiple tries x86/boot: Defer setup_real_mode() to early_initcall time x86/boot: Synchronize trampoline_cr4_features and mmu_cr4_features directly x86/boot: Run reserve_bios_regions() after we initialize the memory map x86/irq: Do not substract irq_tlb_count from irq_call_count x86/mm: Fix swap entry comment and macro x86/mm/kaslr: Fix -Wformat-security warning x86/mm/pkeys: Fix compact mode by removing protection keys' XSAVE buffer manipulation x86/build: Reduce the W=1 warnings noise when compiling x86 syscall tables x86/platform/UV: Fix kernel panic running RHEL kdump kernel on UV systems x86/platform/UV: Fix problem with UV4 BIOS providing incorrect PXM values x86/platform/UV: Fix bug with iounmap() of the UV4 EFI System Table causing a crash x86/platform/UV: Fix problem with UV4 Socket IDs not being contiguous x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET x86/mm: Disable preemption during CR3 read+write x86/mm/KASLR: Increase BRK pages for KASLR memory randomization x86/mm/KASLR: Fix physical memory calculation on KASLR memory randomization x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull timer fixes from Ingo Molnar: "Misc fixes: a /dev/rtc regression fix, two APIC timer period calibration fixes, an ARM clocksource driver fix and a NOHZ power use regression fix" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/hpet: Fix /dev/rtc breakage caused by RTC cleanup x86/timers/apic: Inform TSC deadline clockevent device about recalibration x86/timers/apic: Fix imprecise timer interrupts by eliminating TSC clockevents frequency roundoff error timers: Fix get_next_timer_interrupt() computation clocksource/arm_arch_timer: Force per-CPU interrupt to be level-triggered
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由 Rafael J. Wysocki 提交于
* pm-sleep: PM / hibernate: Restore processor state before using per-CPU variables x86/power/64: Always create temporary identity mapping correctly * pm-cpufreq: cpufreq: powernv: Fix crash in gpstate_timer_handler()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull scheduler fixes from Ingo Molnar: "Misc fixes: cputime fixes, two deadline scheduler fixes and a cgroups scheduling fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/cputime: Fix omitted ticks passed in parameter sched/cputime: Fix steal time accounting sched/deadline: Fix lock pinning warning during CPU hotplug sched/cputime: Mitigate performance regression in times()/clock_gettime() sched/fair: Fix typo in sync_throttle() sched/deadline: Fix wrap-around in DL heap
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由 Thomas Garnier 提交于
Restore the processor state before calling any other functions to ensure per-CPU variables can be used with KASLR memory randomization. Tracing functions use per-CPU variables (GS based on x86) and one was called just before restoring the processor state fully. It resulted in a double fault when both the tracing & the exception handler functions tried to use a per-CPU variable. Fixes: bb3632c6 (PM / sleep: trace events for suspend/resume) Reported-and-tested-by: NBorislav Petkov <bp@suse.de> Reported-by: NJiri Kosina <jikos@kernel.org> Tested-by: NRafael J. Wysocki <rafael@kernel.org> Tested-by: NJiri Kosina <jkosina@suse.cz> Signed-off-by: NThomas Garnier <thgarnie@google.com> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf fixes from Ingo Molnar: "Mostly tooling fixes, plus two uncore-PMU fixes, an uprobes fix, a perf-cgroups fix and an AUX events fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Add enable_box for client MSR uncore perf/x86/intel/uncore: Fix uncore num_counters uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions perf/core: Set cgroup in CPU contexts for new cgroup events perf/core: Fix sideband list-iteration vs. event ordering NULL pointer deference crash perf probe ppc64le: Fix probe location when using DWARF perf probe: Add function to post process kernel trace events tools: Sync cpufeatures headers with the kernel toops: Sync tools/include/uapi/linux/bpf.h with the kernel tools: Sync cpufeatures.h and vmx.h with the kernel perf probe: Support signedness casting perf stat: Avoid skew when reading events perf probe: Fix module name matching perf probe: Adjust map->reloc offset when finding kernel symbol from map perf hists: Trim libtraceevent trace_seq buffers perf script: Add 'bpf-output' field to usage message
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