- 18 3月, 2016 7 次提交
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由 Vladimir Davydov 提交于
Show how much memory is used for storing reclaimable and unreclaimable in-kernel data structures allocated from slab caches. Signed-off-by: NVladimir Davydov <vdavydov@virtuozzo.com> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Vladimir Davydov 提交于
Currently, tree_{stat,events} helpers can only get one stat index at a time, so when there are a lot of stats to be reported one has to call it over and over again (see memory_stat_show). This is neither effective, nor does it look good. Instead, let's make these helpers take a snapshot of all available counters. Signed-off-by: NVladimir Davydov <vdavydov@virtuozzo.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Vladimir Davydov 提交于
Slab pages are charged in two steps. First, an appropriate per memcg cache is selected (see memcg_kmem_get_cache) basing on the current context, then the new slab page is charged to the memory cgroup which the selected cache was created for (see memcg_charge_slab -> __memcg_kmem_charge_memcg). It is OK to bypass kmemcg charge at step 1, but if step 1 succeeded and we successfully allocated a new slab page, step 2 must be performed, otherwise we would get a per memcg kmem cache which contains a slab that does not hold a reference to the memory cgroup owning the cache. Since per memcg kmem caches are destroyed on memcg css free, this could result in freeing a cache while there are still active objects in it. However, currently we will bypass slab page charge if the memory cgroup owning the cache is offline (see __memcg_kmem_charge_memcg). This is very unlikely to occur in practice, because for this to happen a process must be migrated to a different cgroup and the old cgroup must be removed while the process is in kmalloc somewhere between steps 1 and 2 (e.g. trying to allocate a new page). Nevertheless, it's still better to eliminate such a possibility. Signed-off-by: NVladimir Davydov <vdavydov@virtuozzo.com> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Johannes Weiner 提交于
When the OOM killer scans tasks and encounters a PF_EXITING one, it force-selects that task regardless of the score. The problem is that if that task got stuck waiting for some state the allocation site is holding, the OOM reaper can not move on to the next best victim. Frankly, I don't even know why we check for exiting tasks in the OOM killer. We've tried direct reclaim at least 15 times by the time we decide the system is OOM, there was plenty of time to exit and free memory; and a task might exit voluntarily right after we issue a kill. This is testing pure noise. Remove it. Signed-off-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: NJohannes Weiner <hannes@cmpxchg.org> Acked-by: NMichal Hocko <mhocko@suse.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Andrea Argangeli <andrea@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Joshua Hunt 提交于
While working on a script to restore all sysctl params before a series of tests I found that writing any value into the /proc/sys/kernel/{nmi_watchdog,soft_watchdog,watchdog,watchdog_thresh} causes them to call proc_watchdog_update(). NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. There doesn't appear to be a reason for doing this work every time a write occurs, so only do it when the values change. Signed-off-by: NJosh Hunt <johunt@akamai.com> Acked-by: NDon Zickus <dzickus@redhat.com> Reviewed-by: NAaron Tomlin <atomlin@redhat.com> Cc: Ulrich Obergfell <uobergfe@redhat.com> Cc: <stable@vger.kernel.org> [4.1.x+] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Aaro Koskinen 提交于
Commit 1f330c32 ("drivers/firmware/broadcom/bcm47xx_nvram.c: use __ioread32_copy() instead of open-coding") switched to use a generic copy function, but failed to notice that the header pointer is updated between the two copies, resulting in bogus data being copied in the latter one. Fix by keeping the old header pointer. The patch fixes totally broken networking on WRT54GL router (both LAN and WLAN interfaces fail to probe). Fixes: 1f330c32 ("drivers/firmware/broadcom/bcm47xx_nvram.c: use __ioread32_copy() instead of open-coding") Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: NStephen Boyd <sboyd@codeaurora.org> Cc: Rafal Milecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: <stable@vger.kernel.org> [4.4.x] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Luis R. Rodriguez 提交于
All architectures now need ioremap_uc(), ia64 seems defines this already through its ioremap_nocache() and it already ensures it *only* uses UC. This is needed since v4.3 to complete an allyesconfig compile on ia64, there were others archs that needed this, and this one seems to have fallen through the cracks. Signed-off-by: NLuis R. Rodriguez <mcgrof@kernel.org> Reported-by: Nkbuild test robot <fengguang.wu@intel.com> Acked-by: NTony Luck <tony.luck@intel.com> Cc: <stable@vger.kernel.org> [4.3+] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 3月, 2016 13 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux由 Linus Torvalds 提交于
Pull fbdev updates from Tomi Valkeinen: - Miscallaneous small fixes to various fbdev drivers - Remove fb_rotate, which was never used - pmag fb improvements * tag 'fbdev-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (21 commits) xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND" video: fbdev: sis: remove unused variable drivers/video: make fbdev/sunxvr2500.c explicitly non-modular drivers/video: make fbdev/sunxvr1000.c explicitly non-modular drivers/video: make fbdev/sunxvr500.c explicitly non-modular video: exynos: fix modular build fbdev: da8xx-fb: fix videomodes of lcd panels fbdev: kill fb_rotate video: fbdev: bt431: Correct cursor format control macro video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing video: fbdev: pmag-ba-fb: Fix and rework Bt455 colormap handling video: fbdev: bt455: Remove unneeded colormap helpers for cursor support video: fbdev: pmag-aa-fb: Report video timings video: fbdev: pmag-aa-fb: Enable building as a module video: fbdev: pmag-aa-fb: Adapt to current APIs video: fbdev: pmag-ba-fb: Fix the lower margin size fbdev: sh_mobile_lcdc: Use ARCH_RENESAS fbdev: n411: check return value fbdev: exynos: fix IS_ERR_VALUE usage video: Use bool instead int pointer for get_opt_bool() argument ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media由 Linus Torvalds 提交于
Pull media updates from Mauro Carvalho Chehab: - Added support for some new video formats - mn88473 DVB frontend driver got promoted from staging - several improvements at the VSP1 driver - several cleanups and improvements at the Media Controller - added Media Controller support to snd-usb-audio. Currently, enabled only for au0828-based V4L2/DVB boards - Several improvements at nuvoton-cir: it now supports wake up codes - Add media controller support to em28xx and saa7134 drivers - coda driver now accepts NXP distributed firmware files - Some legacy SoC camera drivers will be moving to staging, as they're outdated and nobody so far is willing to fix and convert them to use the current media framework - As usual, lots of cleanups, improvements and new board additions. * tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (381 commits) media: au0828 disable tuner to demod link in au0828_media_device_register() [media] touptek: cast char types on %x printk [media] touptek: don't DMA at the stack [media] mceusb: use %*ph for small buffer dumps [media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links [media] v4l: vsp1: Check if an entity is a subdev with the right function [media] hide unused functions for !MEDIA_CONTROLLER [media] em28xx: fix Terratec Grabby AC97 codec detection [media] media: add prefixes to interface types [media] media: rc: nuvoton: switch attribute wakeup_data to text [media] v4l2-ioctl: fix YUV422P pixel format description [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source() [media] v4l2-mc.h: fix yet more compiler errors [media] staging/media: add missing TODO files [media] media.h: always start with 1 for the audio entities [media] sound/usb: Use meaninful names for goto labels [media] v4l2-mc.h: fix compiler warnings [media] media: au0828 audio mixer isn't connected to decoder [media] sound/usb: Use Media Controller API to share media resources [media] dw2102: add support for TeVii S662 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm由 Linus Torvalds 提交于
Pull libnvdimm updates from Dan Williams: - Asynchronous address range scrub: Given the capacities of next generation persistent memory devices a scrub operation to find all poison may take 10s of seconds. We want this scrub work to be done asynchronously with the rest of system initialization, so we move it out of line from the NFIT probing, i.e. acpi_nfit_add(). - Clear poison: ACPI 6.1 introduces the ability to send "clear error" commands to the ACPI0012:00 device representing the root of an "nvdimm bus". Similar to relocating a bad block on a disk, this support clears media errors in response to a write. - Persistent memory resource tracking: A persistent memory range may be designated as simply "reserved" by platform firmware in the efi/e820 memory map. Later when the NFIT driver loads it discovers that the range is "Persistent Memory". The NFIT bus driver inserts a resource to advertise that "persistent" attribute in the system resource tree for /proc/iomem and kernel-internal usages. - Miscellaneous cleanups and fixes: Workaround section misaligned pmem ranges when allocating a struct page memmap, fix handling of the read-only case in the ioctl path, and clean up block device major number allocation. * tag 'libnvdimm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (26 commits) libnvdimm, pmem: clear poison on write libnvdimm, pmem: fix kmap_atomic() leak in error path nvdimm/btt: don't allocate unused major device number nvdimm/blk: don't allocate unused major device number pmem: don't allocate unused major device number ACPI: Change NFIT driver to insert new resource resource: Export insert_resource and remove_resource resource: Add remove_resource interface resource: Change __request_region to inherit from immediate parent libnvdimm, pmem: fix ia64 build, use PHYS_PFN nfit, libnvdimm: clear poison command support libnvdimm, pfn: 'resource'-address and 'size' attributes for pfn devices libnvdimm, pmem: adjust for section collisions with 'System RAM' libnvdimm, pmem: fix 'pfn' support for section-misaligned namespaces libnvdimm: Fix security issue with DSM IOCTL. libnvdimm: Clean-up access mode check. tools/testing/nvdimm: expand ars unit testing nfit: disable userspace initiated ars during scrub nfit: scrub and register regions in a workqueue nfit, libnvdimm: async region scrub workqueue ...
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm由 Linus Torvalds 提交于
Pull device mapper updates from Mike Snitzer: - Most attention this cycle went to optimizing blk-mq request-based DM (dm-mq) that is used exclussively by DM multipath: - A stable fix for dm-mq that eliminates excessive context switching offers the biggest performance improvement (for both IOPs and throughput). - But more work is needed, during the next cycle, to reduce spinlock contention in DM multipath on large NUMA systems. - A stable fix for a NULL pointer seen when DM stats is enabled on a DM multipath device that must requeue an IO due to path failure. - A stable fix for DM snapshot to disallow the COW and origin devices from being identical. This amounts to graceful failure in the face of userspace error because these devices shouldn't ever be identical. - Stable fixes for DM cache and DM thin provisioning to address crashes seen if/when their respective metadata device experiences failures that cause the transition to 'fail_io' mode. - The DM cache 'mq' policy is now an alias for the 'smq' policy. The 'smq' policy proved to be consistently better than 'mq'. As such 'mq', with all its complex user-facing tunables, has been eliminated. - Improve DM thin provisioning to consistently return -ENOSPC once the thin-pool's data volume is out of space. - Improve DM core to properly handle error propagation if bio_integrity_clone() fails in clone_bio(). - Other small cleanups and improvements to DM core. * tag 'dm-4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (41 commits) dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request() dm thin: consistently return -ENOSPC if pool has run out of data space dm cache: bump the target version dm cache: make sure every metadata function checks fail_io dm: add missing newline between DM_DEBUG_BLOCK_STACK_TRACING and DM_BUFIO dm cache policy smq: clarify that mq registration failure was for 'mq' dm: return error if bio_integrity_clone() fails in clone_bio() dm thin metadata: don't issue prefetches if a transaction abort has failed dm snapshot: disallow the COW and origin devices from being identical dm cache: make the 'mq' policy an alias for 'smq' dm: drop unnecessary assignment of md->queue dm: reorder 'struct mapped_device' members to fix alignment and holes dm: remove dummy definition of 'struct dm_table' dm: add 'dm_numa_node' module parameter dm thin metadata: remove needless newline from subtree_dec() DMERR message dm mpath: cleanup reinstate_path() et al based on code review dm mpath: remove __pgpath_busy forward declaration, rename to pgpath_busy dm mpath: switch from 'unsigned' to 'bool' for flags where appropriate dm round robin: use percpu 'repeat_count' and 'current_path' dm path selector: remove 'repeat_count' return from .select_path hook ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI updates from James Bottomley: "This pull includes driver updates from the usual suspects (stex, hpsa, ncr5380, scsi_dh, qla2xxx, be2iscsi, hisi_sas, cxlflash, aacraid, mp3sas, megaraid_sas, ibmvscsi, ufs) plus an assortment of miscellaneous fixes. The major user visible change of this pull is that we've moved from monotonically increasing host number to an ida allocated one (meaning the numbers get re-used) because someone managed to wrap the count in an iscsi system. We don't believe there will be any adverse consequences of this" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (230 commits) MAINTAINERS: use new email address for James Bottomley mpt3sas: Remove unnecessary synchronize_irq() before free_irq() sg: fix dxferp in from_to case cxlflash: Increase cmd_per_lun for better throughput cxlflash: Fix to avoid unnecessary scan with internal LUNs cxlflash: Reorder user context initialization cxlflash: Simplify attach path error cleanup cxlflash: Split out context initialization cxlflash: Unmap problem state area before detaching master context cxlflash: Simplify PCI registration scsi: storvsc: fix SRB_STATUS_ABORTED handling be2iscsi: set the boot_kset pointer to NULL in case of failure sd: Fix discard granularity when LBPRZ=1 be2iscsi: Remove unnecessary synchronize_irq() before free_irq() scsi_sysfs: call 'device_add' after attaching device handler scsi_dh_emc: update 'access_state' field scsi_dh_rdac: update 'access_state' field scsi_dh_alua: update 'access_state' field scsi_dh_alua: use common definitions for ALUA state scsi: Add 'access_state' and 'preferred_path' attribute ...
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft由 Linus Torvalds 提交于
Pull iscsi_ibft update from Konrad Rzeszutek Wilk: "A simple patch that had been rattling around in SuSE repo" * 'stable/for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: iscsi_ibft: Add prefix-len attr and display netmask
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci由 Linus Torvalds 提交于
Pull PCI updates from Bjorn Helgaas: "PCI changes for v4.6: Enumeration: - Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas) - Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas Resource management: - Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas) - Don't assign or reassign immutable resources (Bjorn Helgaas) - Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas) - Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas) - Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas) - ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas) - ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas) - MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas) - Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas) - Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas) - rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi) - designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi) Virtualization: - Wait for up to 1000ms after FLR reset (Alex Williamson) - Support SR-IOV on any function type (Kelly Zytaruk) - Add ACS quirk for all Cavium devices (Manish Jaggi) AER: - Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas) - Restore pci_ops pointer while calling original pci_ops (David Daney) - Fix aer_inject error codes (Jean Delvare) - Use dev_warn() in aer_inject (Jean Delvare) - Log actual error causes in aer_inject (Jean Delvare) - Log aer_inject error injections (Jean Delvare) VPD: - Prevent VPD access for buggy devices (Babu Moger) - Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas) - Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas) - Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas) - Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas) - Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas) - Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas) - Update VPD definitions (Hannes Reinecke) - Allow access to VPD attributes with size 0 (Hannes Reinecke) - Determine actual VPD size on first access (Hannes Reinecke) Generic host bridge driver: - Move structure definitions to separate header file (David Daney) - Add pci_host_common_probe(), based on gen_pci_probe() (David Daney) - Expose pci_host_common_probe() for use by other drivers (David Daney) Altera host bridge driver: - Fix altera_pcie_link_is_up() (Ley Foon Tan) Cavium ThunderX host bridge driver: - Add PCIe host driver for ThunderX processors (David Daney) - Add driver for ThunderX-pass{1,2} on-chip devices (David Daney) Freescale i.MX6 host bridge driver: - Add DT bindings to configure PHY Tx driver settings (Justin Waters) - Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach) - Move PHY reset into imx6_pcie_establish_link() (Lucas Stach) - Remove broken Gen2 workaround (Lucas Stach) - Move link up check into imx6_pcie_wait_for_link() (Lucas Stach) Freescale Layerscape host bridge driver: - Add "fsl,ls2085a-pcie" compatible ID (Yang Shi) Intel VMD host bridge driver: - Attach VMD resources to parent domain's resource tree (Jon Derrick) - Set bus resource start to 0 (Keith Busch) Microsoft Hyper-V host bridge driver: - Add fwnode_handle to x86 pci_sysdata (Jake Oshins) - Look up IRQ domain by fwnode_handle (Jake Oshins) - Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins) NVIDIA Tegra host bridge driver: - Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding) - Implement ->{add,remove}_bus() callbacks (Thierry Reding) - Remove unused struct tegra_pcie.num_ports field (Thierry Reding) - Track bus -> CPU mapping (Thierry Reding) - Remove misleading PHYS_OFFSET (Thierry Reding) Renesas R-Car host bridge driver: - Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman) Synopsys DesignWare host bridge driver: - ARC: Add PCI support (Joao Pinto) - Add generic dw_pcie_wait_for_link() (Joao Pinto) - Add default link up check if sub-driver doesn't override (Joao Pinto) - Add driver for prototyping kits based on ARC SDP (Joao Pinto) TI Keystone host bridge driver: - Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin) Xilinx AXI host bridge driver: - Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada) - Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada) - Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada) - Update Zynq binding with Microblaze node (Bharat Kumar Gogada) - microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada) Xilinx NWL host bridge driver: - Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada) Miscellaneous: - Check device_attach() return value always (Bjorn Helgaas) - Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas) - Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas) - ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas) - Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas) - Remove includes of asm/pci-bridge.h (Bjorn Helgaas) - Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas) - unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas) - Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler) - Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas) - Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa) - frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig) - Move pci_dma_* helpers to common code (Christoph Hellwig) - Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus) - Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson) - Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)" * tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits) PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition PCI: designware: Add driver for prototyping kits based on ARC SDP PCI: designware: Add default link up check if sub-driver doesn't override PCI: designware: Add generic dw_pcie_wait_for_link() PCI: Cleanup pci/pcie/Kconfig whitespace PCI: Simplify pci_create_attr() control flow PCI: Don't leak memory if sysfs_create_bin_file() fails PCI: Simplify sysfs ROM cleanup PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource MIPS: Loongson 3: Use temporary struct resource * to avoid repetition ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource ia64/PCI: Use ioremap() instead of open-coded equivalent ia64/PCI: Use temporary struct resource * to avoid repetition PCI: Clean up pci_map_rom() whitespace PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices PCI: thunder: Add PCIe host driver for ThunderX processors PCI: generic: Expose pci_host_common_probe() for use by other drivers PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe() ...
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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 and ACPI updates from Rafael Wysocki: "This time the majority of changes go into cpufreq and they are significant. First off, the way CPU frequency updates are triggered is different now. Instead of having to set up and manage a deferrable timer for each CPU in the system to evaluate and possibly change its frequency periodically, cpufreq governors set up callbacks to be invoked by the scheduler on a regular basis (basically on utilization updates). The "old" governors, "ondemand" and "conservative", still do all of their work in process context (although that is triggered by the scheduler now), but intel_pstate does it all in the callback invoked by the scheduler with no need for any additional asynchronous processing. Of course, this eliminates the overhead related to the management of all those timers, but also it allows the cpufreq governor code to be simplified quite a bit. On top of that, the common code and data structures used by the "ondemand" and "conservative" governors are cleaned up and made more straightforward and some long-standing and quite annoying problems are addressed. In particular, the handling of governor sysfs attributes is modified and the related locking becomes more fine grained which allows some concurrency problems to be avoided (particularly deadlocks with the core cpufreq code). In principle, the new mechanism for triggering frequency updates allows utilization information to be passed from the scheduler to cpufreq. Although the current code doesn't make use of it, in the works is a new cpufreq governor that will make decisions based on the scheduler's utilization data. That should allow the scheduler and cpufreq to work more closely together in the long run. In addition to the core and governor changes, cpufreq drivers are updated too. Fixes and optimizations go into intel_pstate, the cpufreq-dt driver is updated on top of some modification in the Operating Performance Points (OPP) framework and there are fixes and other updates in the powernv cpufreq driver. Apart from the cpufreq updates there is some new ACPICA material, including a fix for a problem introduced by previous ACPICA updates, and some less significant changes in the ACPI code, like CPPC code optimizations, ACPI processor driver cleanups and support for loading ACPI tables from initrd. Also updated are the generic power domains framework, the Intel RAPL power capping driver and the turbostat utility and we have a bunch of traditional assorted fixes and cleanups. Specifics: - Redesign of cpufreq governors and the intel_pstate driver to make them use callbacks invoked by the scheduler to trigger CPU frequency evaluation instead of using per-CPU deferrable timers for that purpose (Rafael Wysocki). - Reorganization and cleanup of cpufreq governor code to make it more straightforward and fix some concurrency problems in it (Rafael Wysocki, Viresh Kumar). - Cleanup and improvements of locking in the cpufreq core (Viresh Kumar). - Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh Kumar, Eric Biggers). - intel_pstate driver updates including fixes, optimizations and a modification to make it enable enable hardware-coordinated P-state selection (HWP) by default if supported by the processor (Philippe Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe Franciosi). - Operating Performance Points (OPP) framework updates to improve its handling of voltage regulators and device clocks and updates of the cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter). - Updates of the powernv cpufreq driver to fix initialization and cleanup problems in it and correct its worker thread handling with respect to CPU offline, new powernv_throttle tracepoint (Shilpasri Bhat). - ACPI cpufreq driver optimization and cleanup (Rafael Wysocki). - ACPICA updates including one fix for a regression introduced by previos changes in the ACPICA code (Bob Moore, Lv Zheng, David Box, Colin Ian King). - Support for installing ACPI tables from initrd (Lv Zheng). - Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin Chaugule). - Support for _HID(ACPI0010) devices (ACPI processor containers) and ACPI processor driver cleanups (Sudeep Holla). - Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory, Aleksey Makarov). - Modification of the ACPI PCI IRQ management code to make it treat 255 in the Interrupt Line register as "not connected" on x86 (as per the specification) and avoid attempts to use that value as a valid interrupt vector (Chen Fan). - ACPI APEI fixes related to resource leaks (Josh Hunt). - Removal of modularity from a few ACPI drivers (BGRT, GHES, intel_pmic_crc) that cannot be built as modules in practice (Paul Gortmaker). - PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid resource type (Harb Abdulhamid). - New device ID (future AMD I2C controller) in the ACPI driver for AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu). - Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin). - cpuidle menu governor optimization to avoid a square root computation in it (Rasmus Villemoes). - Fix for potential use-after-free in the generic device properties framework (Heikki Krogerus). - Updates of the generic power domains (genpd) framework including support for multiple power states of a domain, fixes and debugfs output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart, Geert Uytterhoeven). - Intel RAPL power capping driver updates to reduce IPI overhead in it (Jacob Pan). - System suspend/hibernation code cleanups (Eric Biggers, Saurabh Sengar). - Year 2038 fix for the process freezer (Abhilash Jindal). - turbostat utility updates including new features (decoding of more registers and CPUID fields, sub-second intervals support, GFX MHz and RC6 printout, --out command line option), fixes (syscall jitter detection and workaround, reductioin of the number of syscalls made, fixes related to Xeon x200 processors, compiler warning fixes) and cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu)" * tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (182 commits) tools/power turbostat: bugfix: TDP MSRs print bits fixing tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump tools/power turbostat: call __cpuid() instead of __get_cpuid() tools/power turbostat: indicate SMX and SGX support tools/power turbostat: detect and work around syscall jitter tools/power turbostat: show GFX%rc6 tools/power turbostat: show GFXMHz tools/power turbostat: show IRQs per CPU tools/power turbostat: make fewer systems calls tools/power turbostat: fix compiler warnings tools/power turbostat: add --out option for saving output in a file tools/power turbostat: re-name "%Busy" field to "Busy%" tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding tools/power turbostat: Intel Xeon x200: fix erroneous bclk value tools/power turbostat: allow sub-sec intervals ACPI / APEI: ERST: Fixed leaked resources in erst_init ACPI / APEI: Fix leaked resources intel_pstate: Do not skip samples partially intel_pstate: Remove freq calculation from intel_pstate_calc_busy() intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance() ...
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由 Linus Torvalds 提交于
Merge first patch-bomb from Andrew Morton: - some misc things - ofs2 updates - about half of MM - checkpatch updates - autofs4 update * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits) autofs4: fix string.h include in auto_dev-ioctl.h autofs4: use pr_xxx() macros directly for logging autofs4: change log print macros to not insert newline autofs4: make autofs log prints consistent autofs4: fix some white space errors autofs4: fix invalid ioctl return in autofs4_root_ioctl_unlocked() autofs4: fix coding style line length in autofs4_wait() autofs4: fix coding style problem in autofs4_get_set_timeout() autofs4: coding style fixes autofs: show pipe inode in mount options kallsyms: add support for relative offsets in kallsyms address table kallsyms: don't overload absolute symbol type for percpu symbols x86: kallsyms: disable absolute percpu symbols on !SMP checkpatch: fix another left brace warning checkpatch: improve UNSPECIFIED_INT test for bare signed/unsigned uses checkpatch: warn on bare unsigned or signed declarations without int checkpatch: exclude asm volatile from complex macro check mm: memcontrol: drop unnecessary lru locking from mem_cgroup_migrate() mm: migrate: consolidate mem_cgroup_migrate() calls mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous ...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k由 Linus Torvalds 提交于
Pull m68k updates from Geert Uytterhoeven. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Fix misspellings in comments. m68k: Use conventional function parameters for do_sigreturn zorro: Use kobj_to_dev()
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux由 Linus Torvalds 提交于
Pull s390 updates from Martin Schwidefsky: - Add the CPU id for the new z13s machine - Add a s390 specific XOR template for RAID-5 checksumming based on the XC instruction. Remove all other alternatives, XC is always faster - The merge of our four different stack tracers into a single one - Tidy up the code related to page tables, several large inline functions are now out-of-line. Bloat-o-meter reports ~11K text size reduction - A binary interface for the priviledged CLP instruction to retrieve the hardware view of the installed PCI functions - Improvements for the dasd format code - Bug fixes and cleanups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (31 commits) s390/pci: enforce fmb page boundary rule s390: fix floating pointer register corruption (again) s390/cpumf: add missing lpp magic initialization s390: Fix misspellings in comments s390/mm: split arch/s390/mm/pgtable.c s390/mm: uninline pmdp_xxx functions from pgtable.h s390/mm: uninline ptep_xxx functions from pgtable.h s390/pci: add ioctl interface for CLP s390: Use pr_warn instead of pr_warning s390/dasd: remove casts to dasd_*_private s390/dasd: Refactor dasd format functions s390/dasd: Simplify code in format logic s390/dasd: Improve dasd format code s390/percpu: remove this_cpu_cmpxchg_double_4 s390/cpumf: Improve guest detection heuristics s390/fault: merge report_user_fault implementations s390/dis: use correct escape sequence for '%' character s390/kvm: simplify set_guest_storage_key s390/oprofile: add z13/z13s model numbers s390: add z13s model number to z13 elf platform ...
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git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32由 Linus Torvalds 提交于
Pull AVR32 updates from Hans-Christian Egtvedt. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: avr32: fix asm operand constraint in cmpxchg() avr32: wire up copy_file_range syscall
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM updates from Paolo Bonzini: "One of the largest releases for KVM... Hardly any generic changes, but lots of architecture-specific updates. ARM: - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems - PMU support for guests - 32bit world switch rewritten in C - various optimizations to the vgic save/restore code. PPC: - enabled KVM-VFIO integration ("VFIO device") - optimizations to speed up IPIs between vcpus - in-kernel handling of IOMMU hypercalls - support for dynamic DMA windows (DDW). s390: - provide the floating point registers via sync regs; - separated instruction vs. data accesses - dirty log improvements for huge guests - bugfixes and documentation improvements. x86: - Hyper-V VMBus hypercall userspace exit - alternative implementation of lowest-priority interrupts using vector hashing (for better VT-d posted interrupt support) - fixed guest debugging with nested virtualizations - improved interrupt tracking in the in-kernel IOAPIC - generic infrastructure for tracking writes to guest memory - currently its only use is to speedup the legacy shadow paging (pre-EPT) case, but in the future it will be used for virtual GPUs as well - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (217 commits) KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch KVM: x86: disable MPX if host did not enable MPX XSAVE features arm64: KVM: vgic-v3: Only wipe LRs on vcpu exit arm64: KVM: vgic-v3: Reset LRs at boot time arm64: KVM: vgic-v3: Do not save an LR known to be empty arm64: KVM: vgic-v3: Save maintenance interrupt state only if required arm64: KVM: vgic-v3: Avoid accessing ICH registers KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit KVM: arm/arm64: vgic-v2: Only wipe LRs on vcpu exit KVM: arm/arm64: vgic-v2: Reset LRs at boot time KVM: arm/arm64: vgic-v2: Do not save an LR known to be empty KVM: arm/arm64: vgic-v2: Move GICH_ELRSR saving to its own function KVM: arm/arm64: vgic-v2: Save maintenance interrupt state only if required KVM: arm/arm64: vgic-v2: Avoid accessing GICH registers KVM: s390: allocate only one DMA page per VM KVM: s390: enable STFLE interpretation only if enabled for the guest KVM: s390: wake up when the VCPU cpu timer expires KVM: s390: step the VCPU timer while in enabled wait KVM: s390: protect VCPU cpu timer with a seqcount KVM: s390: step VCPU cpu timer during kvm_run ioctl ...
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- 16 3月, 2016 20 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp由 Linus Torvalds 提交于
Pull EDAC updates from Borislav Petkov: - Altera: L2 cache and On-Chip RAM support (Thor Thayer). - EDAC: Workqueue handling cleanups (Borislav Petkov). - Xgene: Register bus error handling (Loc Ho). - Misc small fixes. * tag 'edac_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: ARM: socfpga: Enable OCRAM ECC on startup ARM: socfpga: Enable L2 cache ECC on startup ARM: dts: Add Altera L2 Cache and OCRAM EDAC entries EDAC, altera: Add Altera L2 cache and OCRAM support EDAC: Use edac_debugfs_remove_recursive() in edac_debugfs_exit() EDAC, mpc85xx: Silence unused variable warning EDAC: Cleanup/sync workqueue functions EDAC: Kill workqueue setup/teardown functions EDAC: Balance workqueue setup and teardown arm64: Update the APM X-Gene EDAC node with the RB register resource EDAC, xgene: Add missing SoC register bus error handling Documentation, EDAC: Update xgene binding for missing register bus EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
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git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds由 Linus Torvalds 提交于
Pull LED updates from Jacek Anaszewski: "LED core improvements: - Fix misleading comment after workqueue removal from drivers - Avoid error message when a USB LED device is unplugged - Add helpers for calling brightness_set(_blocking) LED triggers: - Simplify led_trigger_store by using sysfs_streq() LED class drivers improvements: - Improve wording and formatting in a comment: lp3944 - Fix return value check in create_gpio_led(): leds-gpio - Use GPIOF_OUT_INIT_LOW instead of hardcoded zero: leds-gpio - Use devm_led_classdev_register(): leds-lm3533, leds-lm3533, leds-lp8788, leds-wm831x-status, leds-s3c24xx, leds-s3c24xx, leds-max8997. New LED class driver: - Add driver for the ISSI IS31FL32xx family of LED controllers. Device Tree documentation: - of: Add vendor prefixes for Integrated Silicon Solutions Inc. (issi) and Si-En Technology (si-en). - DT: Add common bindings for Si-En Technology SN3216/18 and IS31FL32xx family of LED controllers, since they seem to be the same hardware, just rebranded" * tag 'leds_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: triggers: simplify led_trigger_store leds: max8997: Use devm_led_classdev_register leds: da903x: Use devm_led_classdev_register leds: s3c24xx: Use devm_led_classdev_register leds: wm831x-status: Use devm_led_classdev_register leds: lp8788: Use devm_led_classdev_register leds: 88pm860x: Use devm_led_classdev_register leds: Add SN3218 and SN3216 support to the IS31FL32XX driver of: Add vendor prefix for Si-En Technology leds: Add driver for the ISSI IS31FL32xx family of LED controllers DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllers DT: Add vendor prefix for Integrated Silicon Solutions Inc. leds: lm3533: Use devm_led_classdev_register leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zero leds: core: add helpers for calling brightness_set(_blocking) leds: leds-gpio: Fix return value check in create_gpio_led() leds: lp3944: improve wording and formatting in a comment leds: core: avoid error message when a USB LED device is unplugged leds: core: fix misleading comment after workqueue removal from drivers
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux由 Linus Torvalds 提交于
Pull RTC updates from Alexandre Belloni: "Core: - New sysfs interface to set and read clock offset - Drivers can now be both I2C and SPI (see pcf2127 and ds3232) New drivers: - Alphascale ASM9260 - Epson RX6110SA - Maxim max20024 and max77620 (in max77686) - Microchip PIC32 - NXP pcf2129 (in pcf2127) Subsystem wide cleanups: - remove IRQF_EARLY_RESUME when unecessary Drivers: - ds1307: clock output, temperature sensor and wakeup-source support - ds1685: actually spin forever in poweroff error path - ds3232: many cleanups - ds3234: merged in ds3232 - hym8563: fix invalid year calculation - max77686: many cleanups - max77802 merged in max77686 - pcf2123: cleanups and offset support - pcf85063: cleanups - pcf8523: propely handle oscillator stop bit - rv3029: many cleanups, trickle charger and temperature sensor support - rv8803: convert spin_lock to mutex_lock - rx8025: many fixes - vr41xx: restore alarm_irq_enable" * tag 'rtc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (86 commits) rtc: pcf2127: add pcf2129 device id rtc: pcf2127: add support for spi interface rtc: pcf2127: convert to use regmap rtc: rv3029: Add thermometer hwmon support rtc: rv3029: Add update_bits helper for eeprom access rtc: ds1685: actually spin forever in poweroff error path rtc: hym8563: fix invalid year calculation rtc: ds3232: use rtc->ops_lock to protect alarm operations rtc: ds3232: fix issue when irq is shared several devices rtc: ds3232: remove unused UIE code rtc: ds3232: add register access error checks rtc: ds3232: fix read on /dev/rtc after RTC_AIE_ON rtc: merge ds3232 and ds3234 rtc: ds3232: convert to use regmap rtc: pxa: fix Kconfig indentation rtc: rv3029: Add device tree property for trickle charger rtc: rv3029: Add functions for EEPROM access rtc: rv3029: Add i2c register update-bits helper rtc: rv3029: Add missing register definitions rtc: rv3029: Add "rv3029" I2C device id ...
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由 Linus Torvalds 提交于
Merge tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: - New drivers for NSA320 and LTC2990 - Added support for ADM1278 to adm1275 driver - Added support for ncpXXxh103 to ntc_thermistor driver - Renamed vexpress hwmon implementation - Minor cleanups and improvements * tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: Create an NSA320 hardware monitoring driver hwmon: Define binding for the nsa320-hwmon driver hwmon: (adm1275) Add support for ADM1278 hwmon: (ntc_thermistor) Add support for ncpXXxh103 Doc: hwmon: Fix typo "montoring" in hwmon ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel ARM: dts: Change iio_hwmon nodes to use hypen in node names hwmon: (iio_hwmon) Allow the driver to accept hypen in device tree node names hwmon: Add LTC2990 sensor driver hwmon: (vexpress) rename vexpress hwmon implementation
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator由 Linus Torvalds 提交于
Pull regulator updates from Mark Brown: "This has been an extremely quiet release for the regulator API, aside from bugfixes and small enhancements the only thing that really stands out are the new drivers for Action Semiconductors ACT8945A, HiSilicon HI665x, and the Maxim MAX20024 and MAX77620" * tag 'regulator-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (46 commits) regulator: pwm: Add support to have multiple instance of pwm regulator regulator: pwm: Fix calculation of voltage-to-duty cycle regulator: of: Use of_property_read_u32() for reading min/max regulator: pv88060: fix incorrect clear of event register regulator: pv88090: fix incorrect clear of event register regulator: max77620: Add support to configure active-discharge regulator: core: Add support for active-discharge configuration regulator: helper: Add helper to configure active-discharge using regmap regulator: core: Add support for active-discharge configuration regulator: DT: Add DT property for active-discharge configuration regulator: act8865: Specify fixed voltage of 3.3V for ACT8600's REG9 regulator: act8865: Rename platform_data field to init_data regulator: act8865: Remove "static" from local variable ASoC: cs4271: add regulator consumer support regulator: max77620: Remove duplicate module alias regulator: max77620: Eliminate duplicate code regulator: max77620: Remove unused fields regulator: core: fix crash in error path of regulator_register regulator: core: Request GPIO before creating sysfs entries regulator: gpio: don't print error on EPROBE_DEFER ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap由 Linus Torvalds 提交于
Pull regmap updates from Mark Brown: "This has been a very busy release for regmap, not just in cleaning up the mess we got ourselves into with the endianness handling but also in other areas too: - Fixes for the endianness handling so that we now explicitly default to little endian (the code used to do this by accident). This fixes handling of explictly specified endianness on big endian systems. - Optimisation of the implementation of register striding. - A refectoring of the _update_bits() code to reduce duplication. - Fixes and enhancements for the interrupt implementation which make it easier to use in a wider range of systems" * tag 'regmap-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (28 commits) regmap: irq: add devm apis for regmap_{add,del}_irq_chip regmap: replace regmap_write_bits() regmap: irq: Enable irq retriggering for nested irqs regmap: add regmap_fields_force_xxx() macros regmap: add regmap_field_force_xxx() macros regmap: merge regmap_fields_update_bits() into macro regmap: merge regmap_fields_write() into macro regmap: add regmap_fields_update_bits_base() regmap: merge regmap_field_update_bits() into macro regmap: merge regmap_field_write() into macro regmap: add regmap_field_update_bits_base() regmap: merge regmap_update_bits_check_async() into macro regmap: merge regmap_update_bits_check() into macro regmap: merge regmap_update_bits_async() into macro regmap: merge regmap_update_bits() into macro regmap: add regmap_update_bits_base() regcache: flat: Introduce register strider order regcache: Introduce the index parsing API by stride order regmap: core: Introduce register stride order regmap: irq: add devm apis for regmap_{add,del}_irq_chip ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi由 Linus Torvalds 提交于
Pull spi updates from Mark Brown: "Not the biggest set of changes for SPI but a bit of a pickup in activity on the core: - Support for memory mapped read from flash devices via a SPI controller. - The beginnings of a message rewriting framework in the core which should in time allow us to support transforming messages to work around the limits of controllers or optimise the performance for controllers transparently to calling drivers. - Updates to the PXA2xx, the main functional change being to improve the ACPI support. - A new driver for the Analog Devices AXI SPI engine" * tag 'spi-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits) spi: Add gfp parameter to kernel-doc to fix build warning spi: Fix htmldocs build error due struct spi_replaced_transfers spi: rockchip: covert rsd_nsecs to u32 type spi: rockchip: header file cleanup spi: xilinx: Add devicetree binding for spi-xilinx spi: respect the maximum segment size of DMA device spi: rockchip: check requesting dma channel with EPROBE_DEFER spi: rockchip: migrate to dmaengine_terminate_async spi: rockchip: check return value of dmaengine_prep_slave_sg spi: core: Fix deadlock when sending messages spi/rockchip: fix endian mode for 16-bit transfers spi/rockchip: Make sure spi clk is on in rockchip_spi_set_cs spi: pxa2xx: Use newer more explicit DMAengine terminate API spi: pxa2xx: Add support for Intel Broxton B-Step spi: lp-8841: return correct error code from probe spi: imx: drop bogus tests for rx/tx bufs in DMA transfer spi: imx: set MX51_ECSPI_CTRL_SMC bit in setup function spi: imx: make some register defines simpler spi: imx: remove unnecessary bit clearing in mx51_ecspi_config spi: imx: add support for all SPI word width for DMA ...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl由 Linus Torvalds 提交于
Pull pin control updates from Linus Walleij: "An almost purely driver related set of changes with no major changes to the framework, only one patch adding an unlocked version of the pinctrl_find_gpio_range_from_pin() library call. New drivers: - ST Microelectronics STM32 MCU support: this is a non-MMU low-end platform for IoT things (etc). - Microchip PIC32 MCU support: same story as for STM32. New subdrivers: - Allwinner SunXi H3 R_PIO controller support. - Qualcomm IPQ4019 support. - MediaTek MT2701 and MT7623. - Allwinner A64 Non-critical fixes: - gpio_disable_free() for the Vybrid. - pinctrl single: use a separate lockdep class. Misc: - Substantial cleanups and rewrites for the Super-H PFC driver and subdrivers. - Various fixes and cleanups, especially Paul Gortmakers work to make nonmodular drivers nonmodular" * tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits) pinctrl: single: Use a separate lockdep class drivers: pinctrl: add driver for Allwinner A64 SoC pinctrl: Broadcom Northstar2 pinctrl device tree bindings pinctrl: amlogic: Make driver independent from two-domain configuration pinctrl: amlogic: Separate some pin functions for Meson8 / Meson8b pinctrl: at91: use __maybe_unused to hide pm functions pinctrl: sh-pfc: core: don't open code of_device_get_match_data() pinctrl: uniphier: rename CONFIG options and file names pinctrl: sunxi: make A80 explicitly non-modular pinctrl: stm32: make explicitly non-modular pinctrl: sh-pfc: make explicitly non-modular pinctrl: meson: make explicitly non-modular pinctrl: pinctrl-mt6397 driver explicitly non-modular pinctrl: sunxi: does not need module.h pinctrl: pxa2xx: export symbols pinctrl: sunxi: Change mux setting on PI irq pins pinctrl: sunxi: Remove non existing irq's pinctrl: imx: attach iomuxc device to gpr syscon pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing pinctrl: lpc1850-scu: document nxp,gpio-pin-interrupt ...
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由 Ian Kent 提交于
Since including linux/string.h will now do the right thing remove the conditional check. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Kent 提交于
Use the standard pr_xxx() log macros directly for log prints instead of the AUTOFS_XXX() macros. Signed-off-by: NIan Kent <ikent@redhat.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 Ian Kent 提交于
Common kernel coding practice is to include the newline of log prints within the log text rather than hidden away in a macro. To avoid introducing inconsistencies as changes are made change the log macros to not include the newline. Signed-off-by: NIan Kent <raven@themaw.net> 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 Ian Kent 提交于
Use the pr_*() print in AUTOFS_*() macros instead of printks and include the module name in log message macros. Also use the AUTOFS_*() macros everywhere instead of raw printks. Signed-off-by: NIan Kent <raven@themaw.net> 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 Ian Kent 提交于
Fix some white space format errors. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Kent 提交于
The return from an ioctl if an invalid ioctl is passed in should be EINVAL not ENOSYS. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Kent 提交于
The need for this is questionable but checkpatch.pl complains about the line length and it's a straightfoward change. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Kent 提交于
Refactor autofs4_get_set_timeout() to eliminate coding style error. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Kent 提交于
Try and make the coding style completely consistent throughtout the autofs module and inline with kernel coding style recommendations. Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Stanislav Kinsburskiy 提交于
This is required for CRIU (Checkpoint Restart In Userspace) to migrate a mount point when write end in user space is closed. Below is a brief description of the problem. To migrate a non-catatonic autofs mount point, one has to restore the control pipe between kernel and autofs master process. One of the autofs masters is systemd, which closes pipe write end after passing it to the kernel with mount call. To be able to restore the systemd control pipe one has to know which read pipe end in systemd corresponds to the write pipe end in the kernel. The pipe "fd" in mount options is not enough because it was closed and probably replaced by some other descriptor. Thus, some other attribute is required to be able to find the read pipe end. The best attribute to use to find the correct pipe end is inode number becuase it's unique for the whole system and can't be reused while the autofs mount exists. This attribute can also be used to recognize a situation where an autofs mount has no master (no process with specified "pgrp" or no file descriptor with "pipe_ino", specified in autofs mount options). Signed-off-by: NStanislav Kinsburskiy <skinsbursky@virtuozzo.com> Signed-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ard Biesheuvel 提交于
Similar to how relative extables are implemented, it is possible to emit the kallsyms table in such a way that it contains offsets relative to some anchor point in the kernel image rather than absolute addresses. On 64-bit architectures, it cuts the size of the kallsyms address table in half, since offsets between kernel symbols can typically be expressed in 32 bits. This saves several hundreds of kilobytes of permanent .rodata on average. In addition, the kallsyms address table is no longer subject to dynamic relocation when CONFIG_RELOCATABLE is in effect, so the relocation work done after decompression now doesn't have to do relocation updates for all these values. This saves up to 24 bytes (i.e., the size of a ELF64 RELA relocation table entry) per value, which easily adds up to a couple of megabytes of uncompressed __init data on ppc64 or arm64. Even if these relocation entries typically compress well, the combined size reduction of 2.8 MB uncompressed for a ppc64_defconfig build (of which 2.4 MB is __init data) results in a ~500 KB space saving in the compressed image. Since it is useful for some architectures (like x86) to retain the ability to emit absolute values as well, this patch also adds support for capturing both absolute and relative values when KALLSYMS_ABSOLUTE_PERCPU is in effect, by emitting absolute per-cpu addresses as positive 32-bit values, and addresses relative to the lowest encountered relative symbol as negative values, which are subtracted from the runtime address of this base symbol to produce the actual address. Support for the above is enabled by default for all architectures except IA-64 and Tile-GX, whose symbols are too far apart to capture in this manner. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: NGuenter Roeck <linux@roeck-us.net> Reviewed-by: NKees Cook <keescook@chromium.org> Tested-by: NKees Cook <keescook@chromium.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ingo Molnar <mingo@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ard Biesheuvel 提交于
Commit c6bda7c9 ("kallsyms: fix percpu vars on x86-64 with relocation") overloaded the 'A' (absolute) symbol type to signify that a symbol is not subject to dynamic relocation. However, the original A type does not imply that at all, and depending on the version of the toolchain, many A type symbols are emitted that are in fact relative to the kernel text, i.e., if the kernel is relocated at runtime, these symbols should be updated as well. For instance, on sparc32, the following symbols are emitted as absolute (kindly provided by Guenter Roeck): f035a420 A _etext f03d9000 A _sdata f03de8c4 A jiffies f03f8860 A _edata f03fc000 A __init_begin f041bdc8 A __init_text_end f0423000 A __bss_start f0423000 A __init_end f044457d A __bss_stop f044457d A _end On x86_64, similar behavior can be observed: ffffffff81a00000 A __end_rodata_hpage_align ffffffff81b19000 A __vvar_page ffffffff81d3d000 A _end Even if only a couple of them pass the symbol range check that results in them to be taken into account for the final kallsyms symbol table, it is obvious that 'A' does not mean the symbol does not need to be updated at relocation time, and overloading its meaning to signify that is perhaps not a good idea. So instead, add a new percpu_absolute member to struct sym_entry, and when --absolute-percpu is in effect, use it to record symbols whose addresses should be emitted as final values rather than values that still require relocation at runtime. That way, we can drop the check against the 'A' type. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: NGuenter Roeck <linux@roeck-us.net> Reviewed-by: NKees Cook <keescook@chromium.org> Tested-by: NKees Cook <keescook@chromium.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ingo Molnar <mingo@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michal Marek <mmarek@suse.cz> Acked-by: NRusty Russell <rusty@rustcorp.com.au> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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