mirror of https://gitee.com/openkylin/linux.git
418530 Commits
Author | SHA1 | Message | Date |
---|---|---|---|
Vadim Rozenfeld | b94b64c9a7 |
KVM: x86: mark hyper-v hypercall page as dirty
Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini | c760f5e29d |
This deals with 2 guest features that need enablement in the kvm host:
- transactional execution - lpp sampling support In addition there is also a fix to the virtio-ccw guest driver. This will enable future features -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJS2SgQAAoJEBF7vIC1phx8f48P/Rfb/Gg6YT8impCxUr9xaCBM X5lI48HbY7o/b3pQ624VlBUTuv6Hwo0HTVwNExKK0XzS/e9LXFch5dZ03EvFnVYX 3KcAOQ1mlJwYz2At8WdIHj+UHWSiVtNSq6T/rFILMBXqQw/d20NBG2t6J79Pa84G /WkexHv3Q9VKTWZUl05fmbnYTDtEPbVfTt85EbjaHxuUS8ahibYws+GSWcH2eDYe NYtXjrnDJwpoNM0OsyyGItiwNnIQ0ISzxwCzgtu97re9VTKEUoCqkEsMEf1lYr2+ t35RKzuPSvIrVufYf1+L553n9RRAckdHyq/trV70QNj69RoVA8qBii8HuQhN+2WP z+GzCqFv5mMFG2dzoBnrKG77cMXuKFvV9AjyaKPKHg/sty18jXFWzl8YFHVIwngV /KvQx5/+GznsETI5mHAn7BHlOWm1+Wk+I9Mkh6XySlglxlDvH0LTybJDnehhTotX wqPj6X+Qjq1AytDCpExQzDNfeLZx8jYbus4KOo8vptXNRKEyWY2yg5XJxjyjbyp4 0JOorFgl0zrV04+JMhWkLZY5sPzH7/tHe0hJ8VDzow2+IRwhEu31zLmAwFvsb/Ih 6XL1ioncWpCFDGwLcayNMHKAU/k4C5jDxzFJHrLvK8qKMM/SA7LLkaPUhsuUr+oX SlO7Pk859ckzjc5xfCzd =GbUg -----END PGP SIGNATURE----- Merge tag 'kvm-s390-20140117' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-queue This deals with 2 guest features that need enablement in the kvm host: - transactional execution - lpp sampling support In addition there is also a fix to the virtio-ccw guest driver. This will enable future features |
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Linus Torvalds | 0dc3fd0249 |
You'll get a merge issue on Documentation/module-signing.txt: the one in
your tree is more recent, so ignore mine please. Cheers, Rusty. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJS4IBbAAoJENkgDmzRrbjxvv4QAJRyid7F0kMMaImqNtLw+8Sc 9QouX5nE0pt9VIDVs0v3JaJVcJrFrML498DaWM8yi1M4l11EIgWH0GYJ2DLHt3yf F9AGNmwZRzSJnPVyG7HWOlMbqycwh95P3ldJ3NmGClI++BKI/Qn9ffa/hdy7O+1E y7K0TWQQmG1HgIA7BVY491bzQTiUtelqrKShup0TQ6hRYYESs1g+JOClQgeGiFLG Q3JInsYjc7mOtijdfivln4sZKbZjW8oP1Sud/3FrXfLEyS6WiZPDSE82H17ZpZrc q+tlGXziXLJKo8G3jcjCDGvM0GsMDZZe5LJQ7Ax28K73I0o9N7JTbC1cePBg3AWz YW7tWS3DQ9aNfQOum6aCFv9Nu9RadsIVOqMCDdlULbe7fCtK0PeIBxdgLZQOBauM Z5+fCwtfiW6VASnz+UFo+n6V5yzmOEsJToem1a8+UySnlKuO+NkdACBOhCxfditj 5nfOmj1rwoTKacc0jqTZ1twVBfVDSa3PYEqFf9e9DYx17ZjKEFZ0FV9NRX3EZnaN n5Z/Pw+jWMDL1FXFBMNfHUpfmq1spAul+h2+OMMc7+91v1TmRI4Xbeu1jWJeYv+S 0woqfOEHhB+0a6vgxhsXg2SWkyTGHGq/UdX0J4tvN2txKwde8zi2f2TIDdyDhSw9 YWghWp9FuiEuKJ8UgRX5 =9fZu -----END PGP SIGNATURE----- Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell. * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: Add missing newline in printk call. module: fix coding style export: declare ksymtab symbols module.h: Remove unnecessary semicolon params: improve standard definitions Add Documentation/module-signing.txt file |
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Linus Torvalds | 93b05cba8e |
A few simple fixes. Quiet cycle.
Cheers, Rusty. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJS4H+AAAoJENkgDmzRrbjxhXgP/0S4aPYPm6aw+nMKzrbZ6umd 7kFPjZyh8zDuOOwLOIFt2gepI/H0d56ZWi4EmNBO5Md0OChNjHjDF4sC/PA+vTsQ DUoP6zv2yGlmbnaIri4Xo7DXOM/40G4+VOtO60KsTnwjIj8/bqA/VGBFoodqKVw4 lBgkFs32IHynZuwxj14UeuzcPBR8tmHQDvH+ROqa5/7lzMHf24MQLh7NjNCJyoz9 d56GW5tFNpWYgZO27v/QuAI2wHDPDpSOoZnPCh1yfr8+kk+W2HfVFYVD0dOiu2VR FMQ8OMGI+o9XMKvvwCxp2WkXExZRv0KbUOi8+LhphygZgLQw7FEYdulRLpPcach4 T4vzpTHXBVhkrBNkKJIYS556xuubwnQM57ZcaoiDr16SHnyji/tALRIrhnyfvwuo r44HxVkq6RjMlDGZs/5JdmjcW+FWMg5/eVZBkyr+Y+/5xTo8E+WYz6JhMEc+hrrq TL8HDUtpEwFx1HORwkPUBNKoj14sqKwst6wVgN4iyTv534Cq8lqDPanZncBRb2ho p0NxTC96hqOz/LRAy5mS3qn530DOUuvEeV0KGIgbUFn4nuWeGO4kswUY7GlU8dda 4ww3Uxw5SF9uHYBZWtXavBLIq6PhcTdJ6Ckz83kgRwev4gLo9Rj83yW/hwjP9pxu FwRo38ZtfY9jyL4w0cv1 =mh3b -----END PGP SIGNATURE----- Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio update from Rusty Russell: "A few simple fixes. Quiet cycle" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: drivers: virtio: Mark function virtballoon_migratepage() as static in virtio_balloon.c virtio-scsi: Fix hotcpu_notifier use-after-free with virtscsi_freeze virtio: pci: remove unnecessary pci_set_drvdata() |
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Linus Torvalds | 84621c9b18 |
Features:
- FIFO event channels. Key advantages: support for over 100,000 events (2^17), 16 different event priorities, improved fairness in event latency through the use of FIFOs. - Xen PVH support. "It’s a fully PV kernel mode, running with paravirtualized disk and network, paravirtualized interrupts and timers, no emulated devices of any kind (and thus no qemu), no BIOS or legacy boot — but instead of requiring PV MMU, it uses the HVM hardware extensions to virtualize the pagetables, as well as system calls and other privileged operations." (from "The Paravirtualization Spectrum, Part 2: From poles to a spectrum") Bug-fixes: - Fixes in balloon driver (refactor and make it work under ARM) - Allow xenfb to be used in HVM guests. - Allow xen_platform_pci=0 to work properly. - Refactors in event channels. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJS4BmLAAoJEFjIrFwIi8fJ4SAH/iNGESowgMhfW64vRA8pBWq+ NRJpUjYjjwmbxpwoNl6NPwn15cIXFyc3sMtvvrDD3taRDyko2RFuT+NTjpO05xPh d/cRpRXpXERHoiFgPf/WTp7ONBDhvPtHG0+BzJKwgqEIOUYXdbhD+gEjaVlFJScS CAY68OLmk7XYMSZBNzPfKNbSCyhVgZF7wpaimK9lxZBKsFRCDIq6jIyrAsC8epIL 6V/V4l2S6lk/uUeGB6ULphYeINjI2kkpbSfCd1vyenLfWpVscc2o8uWEYFcZMAxy V4HpsoseuqrfdDqgPfud3VgogdISvbkCvDfW85rzfDP4MWxei2mVHFtJ/gSBV+g= =ToNG -----END PGP SIGNATURE----- Merge tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen updates from Konrad Rzeszutek Wilk: "Two major features that Xen community is excited about: The first is event channel scalability by David Vrabel - we switch over from an two-level per-cpu bitmap of events (IRQs) - to an FIFO queue with priorities. This lets us be able to handle more events, have lower latency, and better scalability. Good stuff. The other is PVH by Mukesh Rathor. In short, PV is a mode where the kernel lets the hypervisor program page-tables, segments, etc. With EPT/NPT capabilities in current processors, the overhead of doing this in an HVM (Hardware Virtual Machine) container is much lower than the hypervisor doing it for us. In short we let a PV guest run without doing page-table, segment, syscall, etc updates through the hypervisor - instead it is all done within the guest container. It is a "hybrid" PV - hence the 'PVH' name - a PV guest within an HVM container. The major benefits are less code to deal with - for example we only use one function from the the pv_mmu_ops (which has 39 function calls); faster performance for syscall (no context switches into the hypervisor); less traps on various operations; etc. It is still being baked - the ABI is not yet set in stone. But it is pretty awesome and we are excited about it. Lastly, there are some changes to ARM code - you should get a simple conflict which has been resolved in #linux-next. In short, this pull has awesome features. Features: - FIFO event channels. Key advantages: support for over 100,000 events (2^17), 16 different event priorities, improved fairness in event latency through the use of FIFOs. - Xen PVH support. "It’s a fully PV kernel mode, running with paravirtualized disk and network, paravirtualized interrupts and timers, no emulated devices of any kind (and thus no qemu), no BIOS or legacy boot — but instead of requiring PV MMU, it uses the HVM hardware extensions to virtualize the pagetables, as well as system calls and other privileged operations." (from "The Paravirtualization Spectrum, Part 2: From poles to a spectrum") Bug-fixes: - Fixes in balloon driver (refactor and make it work under ARM) - Allow xenfb to be used in HVM guests. - Allow xen_platform_pci=0 to work properly. - Refactors in event channels" * tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (52 commits) xen/pvh: Set X86_CR0_WP and others in CR0 (v2) MAINTAINERS: add git repository for Xen xen/pvh: Use 'depend' instead of 'select'. xen: delete new instances of __cpuinit usage xen/fb: allow xenfb initialization for hvm guests xen/evtchn_fifo: fix error return code in evtchn_fifo_setup() xen-platform: fix error return code in platform_pci_init() xen/pvh: remove duplicated include from enlighten.c xen/pvh: Fix compile issues with xen_pvh_domain() xen: Use dev_is_pci() to check whether it is pci device xen/grant-table: Force to use v1 of grants. xen/pvh: Support ParaVirtualized Hardware extensions (v3). xen/pvh: Piggyback on PVHVM XenBus. xen/pvh: Piggyback on PVHVM for grant driver (v4) xen/grant: Implement an grant frame array struct (v3). xen/grant-table: Refactor gnttab_init xen/grants: Remove gnttab_max_grant_frames dependency on gnttab_init. xen/pvh: Piggyback on PVHVM for event channels (v2) xen/pvh: Update E820 to work with PVH (v2) xen/pvh: Secondary VCPU bringup (non-bootup CPUs) ... |
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Linus Torvalds | 7ebd3faa9b |
First round of KVM updates for 3.14; PPC parts will come next week.
Nothing major here, just bugfixes all over the place. The most interesting part is the ARM guys' virtualized interrupt controller overhaul, which lets userspace get/set the state and thus enables migration of ARM VMs. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJS3TVKAAoJEBvWZb6bTYbyIFgP/2cmt4ifCuFMaZv4+G1S8jZU uC9ZB/+7vzht/p6zAy+4BxurKbHmSBFkC1OKcxYuy7yB4CQkHabzj4V2vRtqFdwH 5lExP9qh3kqaVLuhnvxLTmkktR3EW4PFy6OI53l5kRNktOXSuZ0aN6K3V7tCg/X0 iL7ASo4bJKlxeWcDpmuVrNgAajmZVfXrjKY7robgBQno+yIsgKhRZRBQHjozA6B8 FpCo/k48RZd/EzIbV/PDDRI4hmmry/lgrO9SKjzq56wSqff2bd/k/KYze4dbAPfd Ps60enPTuHmeEjjb4MMMU4EKHVdTQFUMx/xZCmT4xzoh8s4of6RHphXbfE0SUznQ dTveyEQAR7E3JNS0k1+3WEX5fWlFesp0hO2NeE0wzUq4TAr9ztgVO9NQ6Si15e7Z 2HysO0T5Ojtt0lY08/PvS6i48eCAuuBomrejJS8hLW4SUZ5adn+yW4Qo7Fp9JeBR l9a3LsVT8BZMtUWrUuFcVhlM4MbzElUPjDbgWhR8UYU/kpfVZOQu8qWgGKR4UWXy X7/t9l/tjR99CmfMJBAOzJid+ScSpAfg77BdaKiQrVfVIJmsjEjlO8vUMyj5b1HF hPX5wNyJjHAOfridLeHSs4Rdm4a8sk8Az5d4h76pLVz8M4jyTi2v0rO3N4/dU/pu x7N8KR5hAj+mLBoM9/Al =8sYU -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "First round of KVM updates for 3.14; PPC parts will come next week. Nothing major here, just bugfixes all over the place. The most interesting part is the ARM guys' virtualized interrupt controller overhaul, which lets userspace get/set the state and thus enables migration of ARM VMs" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (67 commits) kvm: make KVM_MMU_AUDIT help text more readable KVM: s390: Fix memory access error detection KVM: nVMX: Update guest activity state field on L2 exits KVM: nVMX: Fix nested_run_pending on activity state HLT KVM: nVMX: Clean up handling of VMX-related MSRs KVM: nVMX: Add tracepoints for nested_vmexit and nested_vmexit_inject KVM: nVMX: Pass vmexit parameters to nested_vmx_vmexit KVM: nVMX: Leave VMX mode on clearing of feature control MSR KVM: VMX: Fix DR6 update on #DB exception KVM: SVM: Fix reading of DR6 KVM: x86: Sync DR7 on KVM_SET_DEBUGREGS add support for Hyper-V reference time counter KVM: remove useless write to vcpu->hv_clock.tsc_timestamp KVM: x86: fix tsc catchup issue with tsc scaling KVM: x86: limit PIT timer frequency KVM: x86: handle invalid root_hpa everywhere kvm: Provide kvm_vcpu_eligible_for_directed_yield() stub kvm: vfio: silence GCC warning KVM: ARM: Remove duplicate include arm/arm64: KVM: relax the requirements of VMA alignment for THP ... |
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Linus Torvalds | bb1281f2aa |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina: "Usual rocket science stuff from trivial.git" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) neighbour.h: fix comment sched: Fix warning on make htmldocs caused by wait.h slab: struct kmem_cache is protected by slab_mutex doc: Fix typo in USB Gadget Documentation of/Kconfig: Spelling s/one/once/ mkregtable: Fix sscanf handling lp5523, lp8501: comment improvements thermal: rcar: comment spelling treewide: fix comments and printk msgs IXP4xx: remove '1 &&' from a condition check in ixp4xx_restart() Documentation: update /proc/uptime field description Documentation: Fix size parameter for snprintf arm: fix comment header and macro name asm-generic: uaccess: Spelling s/a ny/any/ mtd: onenand: fix comment header doc: driver-model/platform.txt: fix a typo drivers: fix typo in DEVTMPFS_MOUNT Kconfig help text doc: Fix typo (acces_process_vm -> access_process_vm) treewide: Fix typos in printk drivers/gpu/drm/qxl/Kconfig: reformat the help text ... |
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Linus Torvalds | 4988abf174 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina: - quite some work on hid-sony driver in order to have DualShock 4 device properly supported, from Frank Praznik - fixed support for suspending I2C conntected devices, from Mika Westerberg - regression fix for 0xff05 usage on Microsoft Ergonomy, from Jiri Kosina - support for Synaptics HD touchscreen, from AceLan Kao - workaround for USB 3.0 problem for logitech-dj connected devices, from Benjamin Tisssoires - support for Logitech Dual Action pads, from Vitaly Katraew - quite a few other assorted fixes and device ID additions * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (33 commits) HID: sony: Use colors for the Dualshock 4 LED names HID: sony: Add annotated HID descriptor for the Dualshock 4 HID: sony: Cache the output report for the Dualshock 4 HID: sony: Map gyroscopes and accelerometers to axes HID: sony: Fix spacing in the device definitions. HID: sony: Use standard output reports instead of raw reports to send data to the Dualshock 4. HID: sony: Use separate identifiers for USB and Bluetooth connected Dualshock 4 controllers. HID: hid-holtek-mouse: add new a070 mouse HID: hid-sensor-hub: Fix buggy report descriptors HID: logitech-dj: Fix USB 3.0 issue HID: sony: Rename worker function HID: sony: Add LED controls for the Dualshock 4 HID: sony: Add force-feedback support for the Dualshock 4 HID: hidraw: make comment more accurate and nicer HID: sony: fix error return code HID: input: fix input sysfs path for hid devices HID: debug: add labels for some new buttons HID: remove SIS entries from hid_have_special_driver[] HID: microsoft: no fallthrough in MS ergonomy 0xff05 usage HID: add support for SiS multitouch panel in the touch monitor LG 23ET83V ... |
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Linus Torvalds | fe41c2c018 |
A set of device-mapper changes for 3.14.
A lot of attention was paid to improving the thin-provisioning target's handling of metadata operation failures and running out of space. A new 'error_if_no_space' feature was added to allow users to error IOs rather than queue them when either the data or metadata space is exhausted. Additional fixes/features include: - a few fixes to properly support thin metadata device resizing - a solution for reliably waiting for a DM device's embedded kobject to be released before destroying the device - old dm-snapshot is updated to use the dm-bufio interface to take advantage of readahead capabilities that improve snapshot activation - new dm-cache target tunables to control how quickly data is promoted to the cache (fast) device - improved write efficiency of cluster mirror target by combining userspace flush and mark requests -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJS4GClAAoJEMUj8QotnQNacdEH/2ES5k5itUQRY9jeI+u2zYNP vdsRTYf+97+B3jpRvpWbMt4kxT2tjaQbkxJ+iKRHy2MBLFUgq8ruH1RS/Q5VbDeg 6i6ol8mpNxhlvo/KTMxXqRcWDSxShiMfhz2lXC2bJ7M4sP/iiH85s4Pm4YQ59jpd OIX7qj36m/cV/le9YQbexJEEsaj+3genbzL26wyyvtG/rT9fWnXa7clj2gqTdToG YCEBCRf5FH9X6W/Oc50nMw5n2dt/MRmPre/MAlOjemeaosB0WJiKaswM25rnvHp0 JnhxQ2K2C5KIKAWIfwPOImdb9zWW7p1dIRLsS8nHBUQr0BF5VRkmvpnYH4qBtcc= =e7e0 -----END PGP SIGNATURE----- Merge tag 'dm-3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device-mapper changes from Mike Snitzer: "A lot of attention was paid to improving the thin-provisioning target's handling of metadata operation failures and running out of space. A new 'error_if_no_space' feature was added to allow users to error IOs rather than queue them when either the data or metadata space is exhausted. Additional fixes/features include: - a few fixes to properly support thin metadata device resizing - a solution for reliably waiting for a DM device's embedded kobject to be released before destroying the device - old dm-snapshot is updated to use the dm-bufio interface to take advantage of readahead capabilities that improve snapshot activation - new dm-cache target tunables to control how quickly data is promoted to the cache (fast) device - improved write efficiency of cluster mirror target by combining userspace flush and mark requests" * tag 'dm-3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (35 commits) dm log userspace: allow mark requests to piggyback on flush requests dm space map metadata: fix bug in resizing of thin metadata dm cache: add policy name to status output dm thin: fix pool feature parsing dm sysfs: fix a module unload race dm snapshot: use dm-bufio prefetch dm snapshot: use dm-bufio dm snapshot: prepare for switch to using dm-bufio dm snapshot: use GFP_KERNEL when initializing exceptions dm cache: add block sizes and total cache blocks to status output dm btree: add dm_btree_find_lowest_key dm space map metadata: fix extending the space map dm space map common: make sure new space is used during extend dm: wait until embedded kobject is released before destroying a device dm: remove pointless kobject comparison in dm_get_from_kobject dm snapshot: call destroy_work_on_stack() to pair with INIT_WORK_ONSTACK() dm cache policy mq: introduce three promotion threshold tunables dm cache policy mq: use list_del_init instead of list_del + INIT_LIST_HEAD dm thin: fix set_pool_mode exposed pool operation races dm thin: eliminate the no_free_space flag ... |
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Linus Torvalds | 194e57fd18 |
SCSI for-linus on 20140122
This patch set is a lot of driver updates for qla4xxx, bfa, hpsa, qla2xxx. It also removes the aic7xxx_old driver (which has been deprecated for nearly a decade) and adds support for deadlines in error handling. Signed-off-by: James Bottomley <JBottomley@Parallels.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQEcBAABAgAGBQJS4AfxAAoJEDeqqVYsXL0M8DAIAKRtc9+hy2zsratyvHxxZlz4 6tdvT/4dLTXbIS7EFHmdVb09G5791Pj2jx2PAza/zFDSzgMyL8reXjXpDtCQBvsG U9CKAGAfJi/vD3QSez2qh0SyvIfCHjatlU3IsM/g+5iFcIOO9+LMJuRlw3qtVqOZ iQQBATH8cuVW7k1YRHXS5xAO8cVCEYBPuuz0UreVnZijTV5lsRFaObaq8r7S7yVM 4F5eSb5lcgZZLDMDMB0E2KHq12QoLiLQy/ahCqAL1od41v+P90BHC4cIu8jkdB0l nUYp8vHkmsM82L3xxK9HglcZvJ94fkz6n1gwULl2dTNSYldUnXc/xmocbt0KMf8= =yko3 -----END PGP SIGNATURE----- Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This patch set is a lot of driver updates for qla4xxx, bfa, hpsa, qla2xxx. It also removes the aic7xxx_old driver (which has been deprecated for nearly a decade) and adds support for deadlines in error handling" * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (75 commits) [SCSI] hpsa: allow SCSI mid layer to handle unit attention [SCSI] hpsa: do not require board "not ready" status after hard reset [SCSI] hpsa: enable unit attention reporting [SCSI] hpsa: rename scsi prefetch field [SCSI] hpsa: use workqueue instead of kernel thread for lockup detection [SCSI] ipr: increase dump size in ipr driver [SCSI] mac_scsi: Fix crash on out of memory [SCSI] st: fix enlarge_buffer [SCSI] qla1280: Annotate timer on stack so object debug does not complain [SCSI] qla4xxx: Update driver version to 5.04.00-k3 [SCSI] qla4xxx: Recreate chap data list during get chap operation [SCSI] qla4xxx: Add support for ISCSI_PARAM_LOCAL_IPADDR sysfs attr [SCSI] libiscsi: Add local_ipaddr parameter in iscsi_conn struct [SCSI] scsi_transport_iscsi: Export ISCSI_PARAM_LOCAL_IPADDR attr for iscsi_connection [SCSI] qla4xxx: Add host statistics support [SCSI] scsi_transport_iscsi: Add host statistics support [SCSI] qla4xxx: Added support for Diagnostics MBOX command [SCSI] bfa: Driver version upgrade to 3.2.23.0 [SCSI] bfa: change FC_ELS_TOV to 20sec [SCSI] bfa: Observed auto D-port mode instead of manual ... |
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Linus Torvalds | e1ba84597c |
PCI changes for the v3.14 merge window:
Resource management - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas) - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu) - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas) - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas) - Enforce bus address limits in resource allocation (Yinghai Lu) - Allocate 64-bit BARs above 4G when possible (Yinghai Lu) - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu) PCI device hotplug - Major rescan/remove locking update (Rafael J. Wysocki) - Make ioapic builtin only (not modular) (Yinghai Lu) - Fix release/free issues (Yinghai Lu) - Clean up pciehp (Bjorn Helgaas) - Announce pciehp slot info during enumeration (Bjorn Helgaas) MSI - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev) - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev) - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev) - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman) - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong) SR-IOV - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao) Virtualization - Add support for save/restore of extended capabilities (Alex Williamson) - Add Virtual Channel to save/restore support (Alex Williamson) - Never treat a VF as a multifunction device (Alex Williamson) - Add pci_try_reset_function(), et al (Alex Williamson) AER - Ignore non-PCIe error sources (Betty Dall) - Support ACPI HEST error sources for domains other than 0 (Betty Dall) - Consolidate HEST error source parsers (Bjorn Helgaas) - Add a TLP header print helper (Borislav Petkov) Freescale i.MX6 - Remove unnecessary code (Fabio Estevam) - Make reset-gpio optional (Marek Vasut) - Report "link up" only after link training completes (Marek Vasut) - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut) - Fix PCIe startup code (Richard Zhu) Marvell MVEBU - Remove duplicate of_clk_get_by_name() call (Andrew Lunn) - Drop writes to bridge Secondary Status register (Jason Gunthorpe) - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe) - Support a bridge with no IO port window (Jason Gunthorpe) - Use max_t() instead of max(resource_size_t,) (Jingoo Han) - Remove redundant of_match_ptr (Sachin Kamat) - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni) NVIDIA Tegra - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower) Renesas R-Car - Add runtime PM support (Valentine Barshak) - Fix rcar_pci_probe() return value check (Wei Yongjun) Synopsys DesignWare - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen) - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen) - Fix missing MSI IRQs (Harro Haan) - Add dw_pcie prefix before cfg_read/write (Pratyush Anand) - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand) - Whitespace cleanup (Jingoo Han) EISA - Call put_device() if device_register() fails (Levente Kurusa) - Revert EISA initialization breakage ((Bjorn Helgaas) Miscellaneous - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger) - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas) - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas) - Use dev_is_pci() to identify PCI devices (Yijing Wang) - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches) - Update documentation 00-INDEX (Erik Ekman) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJS3ujEAAoJEFmIoMA60/r8A4EQAK9AZSUSVNWvlKdC1PrBfT3w 7fVILx5A4KWsOU8eoFwCPQLrgvUtMltg16yN2tbCjqpKEdrVc36biMO9bwhnXSyZ KopHKMWnn0sza/z2H8mcGy+0azGdWcIjcErX/a8WeS6zyWBjm+yzckrHNVpPu4Ca SpCBhfgBMjKyIZyLtP6juFSH34S2DfQex4oUSyPC+gjqPy5wW/xw/kBxZfOXl+yU P9pQT+geMIc31pETMdG9wd/TT+47YAui4ieSggoVxfVrphCXv6S8mOMCMuQc2bAy MHy9uFm1jbvKZZIYrzJ+9HFiiU/6MNiOO3Ygua52xuSp1Zrcjwi2CLD9/QBXbDVs pTKU5JIO7q43llkQUpIXTwBvEApSZRhuqzXegsMAYIg4AWmbfm/2fXkfWlQThYMp J48blAJZ4t0vhMr9usgwbtdBe8F5euExOxpwH0QMCMABbuu8/B3TLm39+LTcIbsw Efgm3N9iUTyiV5fe9Rr62nflhyqXjTevPl4wbZZe4OOdm0MXZY+/BzuNJhg3wyY8 QKz2J3FB6OR7BCLHCp80l50s5+Ih4F5kmOXwFKjT1D1MFRaNaPDmp9BY6TitU6hg zj55gP4c8x6n3alakbf972Yhgs/4oi1va8cZL+pCYWb8nPO5ldaMiT7QBBLUreQV BtDtC7u/AFWJ5e73+jVO =La1R -----END PGP SIGNATURE----- Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v3.14 merge window: Resource management - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas) - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu) - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas) - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas) - Enforce bus address limits in resource allocation (Yinghai Lu) - Allocate 64-bit BARs above 4G when possible (Yinghai Lu) - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu) PCI device hotplug - Major rescan/remove locking update (Rafael J. Wysocki) - Make ioapic builtin only (not modular) (Yinghai Lu) - Fix release/free issues (Yinghai Lu) - Clean up pciehp (Bjorn Helgaas) - Announce pciehp slot info during enumeration (Bjorn Helgaas) MSI - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev) - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev) - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev) - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman) - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong) SR-IOV - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao) Virtualization - Add support for save/restore of extended capabilities (Alex Williamson) - Add Virtual Channel to save/restore support (Alex Williamson) - Never treat a VF as a multifunction device (Alex Williamson) - Add pci_try_reset_function(), et al (Alex Williamson) AER - Ignore non-PCIe error sources (Betty Dall) - Support ACPI HEST error sources for domains other than 0 (Betty Dall) - Consolidate HEST error source parsers (Bjorn Helgaas) - Add a TLP header print helper (Borislav Petkov) Freescale i.MX6 - Remove unnecessary code (Fabio Estevam) - Make reset-gpio optional (Marek Vasut) - Report "link up" only after link training completes (Marek Vasut) - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut) - Fix PCIe startup code (Richard Zhu) Marvell MVEBU - Remove duplicate of_clk_get_by_name() call (Andrew Lunn) - Drop writes to bridge Secondary Status register (Jason Gunthorpe) - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe) - Support a bridge with no IO port window (Jason Gunthorpe) - Use max_t() instead of max(resource_size_t,) (Jingoo Han) - Remove redundant of_match_ptr (Sachin Kamat) - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni) NVIDIA Tegra - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower) Renesas R-Car - Add runtime PM support (Valentine Barshak) - Fix rcar_pci_probe() return value check (Wei Yongjun) Synopsys DesignWare - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen) - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen) - Fix missing MSI IRQs (Harro Haan) - Add dw_pcie prefix before cfg_read/write (Pratyush Anand) - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand) - Whitespace cleanup (Jingoo Han) EISA - Call put_device() if device_register() fails (Levente Kurusa) - Revert EISA initialization breakage ((Bjorn Helgaas) Miscellaneous - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger) - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas) - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas) - Use dev_is_pci() to identify PCI devices (Yijing Wang) - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches) - Update documentation 00-INDEX (Erik Ekman)" * tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits) Revert "EISA: Initialize device before its resources" Revert "EISA: Log device resources in dmesg" vfio-pci: Use pci "try" reset interface PCI: Check parent kobject in pci_destroy_dev() xen/pcifront: Use global PCI rescan-remove locking powerpc/eeh: Use global PCI rescan-remove locking PCI: Fix pci_check_and_unmask_intx() comment typos PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus() MPT / PCI: Use pci_stop_and_remove_bus_device_locked() platform / x86: Use global PCI rescan-remove locking PCI: hotplug: Use global PCI rescan-remove locking pcmcia: Use global PCI rescan-remove locking ACPI / hotplug / PCI: Use global PCI rescan-remove locking ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug PCI: Add global pci_lock_rescan_remove() PCI: Cleanup pci.h whitespace PCI: Reorder so actual code comes before stubs PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0 ACPICA: Add helper macros to extract bus/segment numbers from HEST table. PCI: Make local functions static ... |
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Linus Torvalds | 60eaa0190f |
This pull request has a new feature to ftrace, namely the trace event
triggers by Tom Zanussi. A trigger is a way to enable an action when an event is hit. The actions are: o trace on/off - enable or disable tracing o snapshot - save the current trace buffer in the snapshot o stacktrace - dump the current stack trace to the ringbuffer o enable/disable events - enable or disable another event Namhyung Kim added updates to the tracing uprobes code. Having the uprobes add support for fetch methods. The rest are various bug fixes with the new code, and minor ones for the old code. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iQEcBAABAgAGBQJS3Z9fAAoJEKQekfcNnQGuFf0H/0CteaN+BJjpif6Tnxia15Sp pcftzU0lgqfNzsfitmbjiVTgXWqCghoZo8UI9tQZvBZ9wmDIxeXQR73uoBgVlSCQ ovyBO/R8r+lq+7EsDCwntZvrLbcdn6s/jzoruRvt7r35ghK5pH81DNR1BOzTQBhW x+361Xtc13aok7N7JN8KR96VDUP9f8KU6PWqJ5lgS2Zl+wbVw6b0p8OV8IMCHczP MdYrx8y4Jv4QWW7rMShAAVBe9qJQ56JWiWA17ysa4kY8BkKQ7QtlEFr+r1YY0nX5 67brXiL8u0NFzRx5y2VRpGc25BbImnVBFpoLQ5Itluq9OdZE3aOQubzXlY70R6g= =Hkho -----END PGP SIGNATURE----- Merge tag 'trace-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "This pull request has a new feature to ftrace, namely the trace event triggers by Tom Zanussi. A trigger is a way to enable an action when an event is hit. The actions are: o trace on/off - enable or disable tracing o snapshot - save the current trace buffer in the snapshot o stacktrace - dump the current stack trace to the ringbuffer o enable/disable events - enable or disable another event Namhyung Kim added updates to the tracing uprobes code. Having the uprobes add support for fetch methods. The rest are various bug fixes with the new code, and minor ones for the old code" * tag 'trace-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (38 commits) tracing: Fix buggered tee(2) on tracing_pipe tracing: Have trace buffer point back to trace_array ftrace: Fix synchronization location disabling and freeing ftrace_ops ftrace: Have function graph only trace based on global_ops filters ftrace: Synchronize setting function_trace_op with ftrace_trace_function tracing: Show available event triggers when no trigger is set tracing: Consolidate event trigger code tracing: Fix counter for traceon/off event triggers tracing: Remove double-underscore naming in syscall trigger invocations tracing/kprobes: Add trace event trigger invocations tracing/probes: Fix build break on !CONFIG_KPROBE_EVENT tracing/uprobes: Add @+file_offset fetch method uprobes: Allocate ->utask before handler_chain() for tracing handlers tracing/uprobes: Add support for full argument access methods tracing/uprobes: Fetch args before reserving a ring buffer tracing/uprobes: Pass 'is_return' to traceprobe_parse_probe_arg() tracing/probes: Implement 'memory' fetch method for uprobes tracing/probes: Add fetch{,_size} member into deref fetch method tracing/probes: Move 'symbol' fetch method to kprobes tracing/probes: Implement 'stack' fetch method for uprobes ... |
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James Bottomley | 4b1a9a5e40 | Merge branch 'misc' into for-linus | |
Jiri Kosina | 62813858fb | Merge branches 'for-3.13/upstream-fixes', 'for-3.14/i2c-hid', 'for-3.14/sensor-hub', 'for-3.14/sony' and 'for-3.14/upstream' into for-linus | |
Li Zhong | c04e7da013 |
neighbour.h: fix comment
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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Masanari Iida | f434f7afa5 |
sched: Fix warning on make htmldocs caused by wait.h
Missing "@" in include/linux/wait.h cause "make htmldocs" failed with following warning messages. Warning(/home/iida/Repo/linux-next//include/linux/wait.h:304): No description found for parameter 'cmd1' Warning(/home/iida/Repo/linux-next//include/linux/wait.h:304): No description found for parameter 'cmd2' Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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Dongmao Zhang | 5066a4df1f |
dm log userspace: allow mark requests to piggyback on flush requests
In the cluster evironment, cluster write has poor performance because userspace_flush() has to contact a userspace program (cmirrord) for clear/mark/flush requests. But both mark and flush requests require cmirrord to communicate the message to all the cluster nodes for each flush call. This behaviour is really slow. To address this we now merge mark and flush requests together to reduce the kernel-userspace-kernel time. We allow a new directive, "integrated_flush" that can be used to instruct the kernel log code to combine flush and mark requests when directed by userspace. If not directed by userspace (due to an older version of the userspace code perhaps), the kernel will function as it did previously - preserving backwards compatibility. Additionally, flush requests are performed lazily when only clear requests exist. Signed-off-by: Dongmao Zhang <dmzhang@suse.com> Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> |
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Linus Torvalds | df32e43a54 |
Merge branch 'akpm' (incoming from Andrew)
Merge first patch-bomb from Andrew Morton: - a couple of misc things - inotify/fsnotify work from Jan - ocfs2 updates (partial) - about half of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (117 commits) mm/migrate: remove unused function, fail_migrate_page() mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages mm/migrate: correct failure handling if !hugepage_migration_support() mm/migrate: add comment about permanent failure path mm, page_alloc: warn for non-blockable __GFP_NOFAIL allocation failure mm: compaction: reset scanner positions immediately when they meet mm: compaction: do not mark unmovable pageblocks as skipped in async compaction mm: compaction: detect when scanners meet in isolate_freepages mm: compaction: reset cached scanner pfn's before reading them mm: compaction: encapsulate defer reset logic mm: compaction: trace compaction begin and end memcg, oom: lock mem_cgroup_print_oom_info sched: add tracepoints related to NUMA task migration mm: numa: do not automatically migrate KSM pages mm: numa: trace tasks that fail migration due to rate limiting mm: numa: limit scope of lock for NUMA migrate rate limiting mm: numa: make NUMA-migrate related functions static lib/show_mem.c: show num_poisoned_pages when oom mm/hwpoison: add '#' to hwpoison_inject mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter ... |
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Linus Torvalds | fbd918a202 |
Merge branch 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo: "Support for some new embedded controllers. A couple late (<= a week) fixes have stable cc'd and one patch ("SATA: MV: Add support for the optional PHYs") got committed yesterday because otherwise the resulting kernel would fail boot on an embedded board due to interdependent changes in its platform tree. Other than that, nothing too noteworthy" * 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: SATA: MV: Add support for the optional PHYs sata-highbank: Remove unnecessary ahci_platform.h include libata: disable LPM for some WD SATA-I devices ARM: mvebu: update the SATA compatible string for Armada 370/XP ata: sata_mv: fix disk hotplug for Armada 370/XP SoCs ata: sata_mv: introduce compatible string "marvell, armada-370-sata" ata: pata_samsung_cf: Remove unused macros ata: pata_samsung_cf: Use devm_ioremap_resource() ata: pata_samsung_cf: Merge pata_samsung_cf.h into pata_samsung_cf.c ata: pata_samsung_cf: Move plat/regs-ata.h to drivers/ata drivers: ata: Mark the function as static in libahci.c drivers: ata: Mark the function ahci_init_interrupts() as static in ahci.c ahci: imx: fix the error handling in imx_ahci_probe() ahci: imx: ahci_imx_softreset() can be static ahci: imx: Add i.MX53 support ahci: imx: Pull out the clock enable/disable calls libata, dt: Document sata_rcar bindings sata_rcar: Add R-Car Gen2 SATA PHY support ahci: mcp89: enter AHCI mode under Apple BIOS emulation ata: libata-eh: Remove unnecessary snprintf arithmetic |
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Linus Torvalds | f075e0f699 |
Merge branch 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: "The bulk of changes are cleanups and preparations for the upcoming kernfs conversion. - cgroup_event mechanism which is and will be used only by memcg is moved to memcg. - pidlist handling is updated so that it can be served by seq_file. Also, the list is not sorted if sane_behavior. cgroup documentation explicitly states that the file is not sorted but it has been for quite some time. - All cgroup file handling now happens on top of seq_file. This is to prepare for kernfs conversion. In addition, all operations are restructured so that they map 1-1 to kernfs operations. - Other cleanups and low-pri fixes" * 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (40 commits) cgroup: trivial style updates cgroup: remove stray references to css_id doc: cgroups: Fix typo in doc/cgroups cgroup: fix fail path in cgroup_load_subsys() cgroup: fix missing unlock on error in cgroup_load_subsys() cgroup: remove for_each_root_subsys() cgroup: implement for_each_css() cgroup: factor out cgroup_subsys_state creation into create_css() cgroup: combine css handling loops in cgroup_create() cgroup: reorder operations in cgroup_create() cgroup: make for_each_subsys() useable under cgroup_root_mutex cgroup: css iterations and css_from_dir() are safe under cgroup_mutex cgroup: unify pidlist and other file handling cgroup: replace cftype->read_seq_string() with cftype->seq_show() cgroup: attach cgroup_open_file to all cgroup files cgroup: generalize cgroup_pidlist_open_file cgroup: unify read path so that seq_file is always used cgroup: unify cgroup_write_X64() and cgroup_write_string() cgroup: remove cftype->read(), ->read_map() and ->write() hugetlb_cgroup: convert away from cftype->read() ... |
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Linus Torvalds | 5cb7398caf |
Merge branch 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu changes from Tejun Heo: "Two trivial changes - addition of WARN_ONCE() in lib/percpu-refcount.c and use of VMALLOC_TOTAL instead of END - START in percpu.c" * 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: use VMALLOC_TOTAL instead of VMALLOC_END - VMALLOC_START percpu-refcount: Add a WARN() for ref going negative |
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Linus Torvalds | 4a2829b976 |
Merge branch 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue update from Tejun Heo: "Just one patch to add destroy_work_on_stack() annotations to help debugobj debugging" * 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK() |
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Linus Torvalds | ff0bc6cc7f |
dlm for 3.14
This set includes a single change to speed up recovery times when using SCTP connections. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iQIcBAABAgAGBQJS3rFtAAoJEDgbc8f8gGmqLDcP/RHy6yJD25Tqcww8CrE+wZj5 b8sf9zsZR0tbT/L9LiB7F3gwoHoS5BUBs7vq8PUX/qAWLgw5dIL9ZqWBujN0M9pr AOIyAwQtY1U9jINunfYXc4EXfLHYO9pbW7ZJuieg+Tls5meb+werBEbnmNsETht8 NYLcVYQ1VnxR6ohnTzUsheQ5lV8J5AKBYC53ZH32gU1Ua1d6xnxl0Fvq2gwM5uOg Xxo5ugpes5NZLwcUB+Smsf6Fqq3z3oyJkWWh3Vq8BJSduOcNDVd45HXiDM7D/LT9 S6TJAbUH+nTesb4FOP7ew8OewxNJN0TbygJ4CVHvbiM3+7jGJi6esfurNyuATGQ5 VJ18el9T46k5D9s309aa3oNdd1CUbAUJ4eEJU+5/nssuVaAt8H0ETfvme7uIXlCp Pyws08NDT3U91q6Xe1R1FTPFdu0DmqyM9uvMFrtNGMXQxqxXbwco70Y/3HJGhHxb Uk8mOtzjCvVN0gAvB5fB71qNBWBmVsO8M10TsCErbjXb7HJkBKQIq/O5eVRDIVGZ jBenSj6nK3ouQUTNFRas+6pQRR9Pa3m0WH4o9Gj2aCMp48XAc1TKd1ySxRuIplWQ JnJg3BOFpILOqwCNVPXX6TRiWJKdtFrCAm/Q484AChh5GQjhyPWeQg/hiNS8SxG7 UXmHPpAUuoG7LcPfuabr =/Wic -----END PGP SIGNATURE----- Merge tag 'dlm-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm update from David Teigland: "A single change to speed up recovery times when using SCTP connections" * tag 'dlm-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: set zero linger time on sctp socket |
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Linus Torvalds | 2182c815f3 |
The main topics this time are allocation, in the form of Bob's
improvements when searching resource groups and several updates to quotas which should increase scalability. The quota changes follow on from those in the last merge window, and there will likely be further work to come in this area in due course. There are also a few patches which help to improve efficiency of adding entries into directories, and clean up some of that code. One on-disk change is included this time, which is to write some additional information which should be useful to fsck and also potentially for debugging. Other than that, its just a few small random bug fixes and clean ups. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iQIcBAABAgAGBQJS3RZUAAoJEMrg3m4a/8jS/C4QAKAoGbGH8UxG2fNRUWK94UBL lxxn0nUaQ7bwKpIbysEO6HHg2rqcfjRSdO/H6kfD51Fgg39RfIfvXF9woJw/5Is6 1xcn3faBl3dQhIq81+lSKnEJnJbQ49dbIcgxt1FGqPI8ZY6st/CBvnvqh0TRAcvN 7t0TYSPxmA/7BnwynstTbpK2l9uUisau8z12QzihJ6lRiR7QlfFSUq6Xs/ICSmkE LE2dC6gXMIIDyMpPX5Fg9NQNEAPKOzMwduUaHnv2vpuh1jkk3ObHg4mUkYtdoUZx Hbs1Ey5oqRiMs03I5wm1ayZg+6i/pT7HTM5vbrunTa21AMmJ0NTFdZ4ihVZqZwu4 ynpXY0OT/U7CpFyx6FSKtlq0kzwx5A51mL9bpSlLU9pggJY6NHQdmSJ9fdLW9cdS Wwi2Br/0rBvIhm0ejy8kxK904DhqCGsH+RXbfOc8J4VBE4R/z5eMmBG9UqMm7c+7 hO6FhpJo9QsNMe19A8IANzG2gT+PcpgrXs2GTS1QFGhFgn08+k3RLDT/SrGRxU6r MaCM9rms0SgMr2LX6MEPZdo3LJgBTNr1rKDEIzQ7BUXs3FHJ7U0swuHOTDXFVm51 gQanPYmVvFV7aiom3ExUhegDefBu1jMnY26SVxxLAbWN1Ek2Ikg6rO6wx3ckXvYo SKY3qAewE5pNpHe7u6SS =/tv0 -----END PGP SIGNATURE----- Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw Pull GFS2 updates from Steven Whitehouse: "The main topics this time are allocation, in the form of Bob's improvements when searching resource groups and several updates to quotas which should increase scalability. The quota changes follow on from those in the last merge window, and there will likely be further work to come in this area in due course. There are also a few patches which help to improve efficiency of adding entries into directories, and clean up some of that code. One on-disk change is included this time, which is to write some additional information which should be useful to fsck and also potentially for debugging. Other than that, its just a few small random bug fixes and clean ups" * tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: (24 commits) GFS2: revert "GFS2: d_splice_alias() can't return error" GFS2: Small cleanup GFS2: Don't use ENOBUFS when ENOMEM is the correct error code GFS2: Fix kbuild test robot reported warning GFS2: Move quota bitmap operations under their own lock GFS2: Clean up quota slot allocation GFS2: Only run logd and quota when mounted read/write GFS2: Use RCU/hlist_bl based hash for quotas GFS2: No need to invalidate pages for a dio read GFS2: Add initialization for address space in super block GFS2: Add hints to directory leaf blocks GFS2: For exhash conversion, only one block is needed GFS2: Increase i_writecount during gfs2_setattr_chown GFS2: Remember directory insert point GFS2: Consolidate transaction blocks calculation for dir add GFS2: Add directory addition info structure GFS2: Use only a single address space for rgrps GFS2: Use range based functions for rgrp sync/invalidation GFS2: Remove test which is always true GFS2: Remove gfs2_quota_change_host structure ... |
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Joonsoo Kim | 78d5506e82 |
mm/migrate: remove unused function, fail_migrate_page()
fail_migrate_page() isn't used anywhere, so remove it. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Christoph Lameter <cl@linux.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joonsoo Kim | 59c82b70dc |
mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages
Some part of putback_lru_pages() and putback_movable_pages() is duplicated, so it could confuse us what we should use. We can remove putback_lru_pages() since it is not really needed now. This makes us undestand and maintain the code more easily. And comment on putback_movable_pages() is stale now, so fix it. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Christoph Lameter <cl@linux.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joonsoo Kim | 32665f2bbf |
mm/migrate: correct failure handling if !hugepage_migration_support()
We should remove the page from the list if we fail with ENOSYS, since migrate_pages() consider error cases except -ENOMEM and -EAGAIN as permanent failure and it assumes that the page would be removed from the list. Without this patch, we could overcount number of failure. In addition, we should put back the new hugepage if !hugepage_migration_support(). If not, we would leak hugepage memory. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Christoph Lameter <cl@linux.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Naoya Horiguchi | 354a336336 |
mm/migrate: add comment about permanent failure path
Let's add a comment about where the failed page goes to, which makes code more readable. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Christoph Lameter <cl@linux.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: Rafael Aquini <aquini@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Rientjes | aed0a0e32d |
mm, page_alloc: warn for non-blockable __GFP_NOFAIL allocation failure
__GFP_NOFAIL may return NULL when coupled with GFP_NOWAIT or GFP_ATOMIC. Luckily, nothing currently does such craziness. So instead of causing such allocations to loop (potentially forever), we maintain the current behavior and also warn about the new users of the deprecated flag. Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka | 55b7c4c99f |
mm: compaction: reset scanner positions immediately when they meet
Compaction used to start its migrate and free page scaners at the zone's lowest and highest pfn, respectively. Later, caching was introduced to remember the scanners' progress across compaction attempts so that pageblocks are not re-scanned uselessly. Additionally, pageblocks where isolation failed are marked to be quickly skipped when encountered again in future compactions. Currently, both the reset of cached pfn's and clearing of the pageblock skip information for a zone is done in __reset_isolation_suitable(). This function gets called when: - compaction is restarting after being deferred - compact_blockskip_flush flag is set in compact_finished() when the scanners meet (and not again cleared when direct compaction succeeds in allocation) and kswapd acts upon this flag before going to sleep This behavior is suboptimal for several reasons: - when direct sync compaction is called after async compaction fails (in the allocation slowpath), it will effectively do nothing, unless kswapd happens to process the compact_blockskip_flush flag meanwhile. This is racy and goes against the purpose of sync compaction to more thoroughly retry the compaction of a zone where async compaction has failed. The restart-after-deferring path cannot help here as deferring happens only after the sync compaction fails. It is also done only for the preferred zone, while the compaction might be done for a fallback zone. - the mechanism of marking pageblock to be skipped has little value since the cached pfn's are reset only together with the pageblock skip flags. This effectively limits pageblock skip usage to parallel compactions. This patch changes compact_finished() so that cached pfn's are reset immediately when the scanners meet. Clearing pageblock skip flags is unchanged, as well as the other situations where cached pfn's are reset. This allows the sync-after-async compaction to retry pageblocks not marked as skipped, such as blocks !MIGRATE_MOVABLE blocks that async compactions now skips without marking them. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Rik van Riel <riel@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka | 50b5b094e6 |
mm: compaction: do not mark unmovable pageblocks as skipped in async compaction
Compaction temporarily marks pageblocks where it fails to isolate pages as to-be-skipped in further compactions, in order to improve efficiency. One of the reasons to fail isolating pages is that isolation is not attempted in pageblocks that are not of MIGRATE_MOVABLE (or CMA) type. The problem is that blocks skipped due to not being MIGRATE_MOVABLE in async compaction become skipped due to the temporary mark also in future sync compaction. Moreover, this may follow quite soon during __alloc_page_slowpath, without much time for kswapd to clear the pageblock skip marks. This goes against the idea that sync compaction should try to scan these blocks more thoroughly than the async compaction. The fix is to ensure in async compaction that these !MIGRATE_MOVABLE blocks are not marked to be skipped. Note this should not affect performance or locking impact of further async compactions, as skipping a block due to being !MIGRATE_MOVABLE is done soon after skipping a block marked to be skipped, both without locking. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Rik van Riel <riel@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka | 7ed695e069 |
mm: compaction: detect when scanners meet in isolate_freepages
Compaction of a zone is finished when the migrate scanner (which begins at the zone's lowest pfn) meets the free page scanner (which begins at the zone's highest pfn). This is detected in compact_zone() and in the case of direct compaction, the compact_blockskip_flush flag is set so that kswapd later resets the cached scanner pfn's, and a new compaction may again start at the zone's borders. The meeting of the scanners can happen during either scanner's activity. However, it may currently fail to be detected when it occurs in the free page scanner, due to two problems. First, isolate_freepages() keeps free_pfn at the highest block where it isolated pages from, for the purposes of not missing the pages that are returned back to allocator when migration fails. Second, failing to isolate enough free pages due to scanners meeting results in -ENOMEM being returned by migrate_pages(), which makes compact_zone() bail out immediately without calling compact_finished() that would detect scanners meeting. This failure to detect scanners meeting might result in repeated attempts at compaction of a zone that keep starting from the cached pfn's close to the meeting point, and quickly failing through the -ENOMEM path, without the cached pfns being reset, over and over. This has been observed (through additional tracepoints) in the third phase of the mmtests stress-highalloc benchmark, where the allocator runs on an otherwise idle system. The problem was observed in the DMA32 zone, which was used as a fallback to the preferred Normal zone, but on the 4GB system it was actually the largest zone. The problem is even amplified for such fallback zone - the deferred compaction logic, which could (after being fixed by a previous patch) reset the cached scanner pfn's, is only applied to the preferred zone and not for the fallbacks. The problem in the third phase of the benchmark was further amplified by commit |
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Vlastimil Babka | d3132e4b83 |
mm: compaction: reset cached scanner pfn's before reading them
Compaction caches pfn's for its migrate and free scanners to avoid scanning the whole zone each time. In compact_zone(), the cached values are read to set up initial values for the scanners. There are several situations when these cached pfn's are reset to the first and last pfn of the zone, respectively. One of these situations is when a compaction has been deferred for a zone and is now being restarted during a direct compaction, which is also done in compact_zone(). However, compact_zone() currently reads the cached pfn's *before* resetting them. This means the reset doesn't affect the compaction that performs it, and with good chance also subsequent compactions, as update_pageblock_skip() is likely to be called and update the cached pfn's to those being processed. Another chance for a successful reset is when a direct compaction detects that migration and free scanners meet (which has its own problems addressed by another patch) and sets update_pageblock_skip flag which kswapd uses to do the reset because it goes to sleep. This is clearly a bug that results in non-deterministic behavior, so this patch moves the cached pfn reset to be performed *before* the values are read. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@suse.de> Acked-by: Rik van Riel <riel@redhat.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka | de6c60a6c1 |
mm: compaction: encapsulate defer reset logic
Currently there are several functions to manipulate the deferred compaction state variables. The remaining case where the variables are touched directly is when a successful allocation occurs in direct compaction, or is expected to be successful in the future by kswapd. Here, the lowest order that is expected to fail is updated, and in the case of successful allocation, the deferred status and counter is reset completely. Create a new function compaction_defer_reset() to encapsulate this functionality and make it easier to understand the code. No functional change. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | 0eb927c0ab |
mm: compaction: trace compaction begin and end
The broad goal of the series is to improve allocation success rates for huge pages through memory compaction, while trying not to increase the compaction overhead. The original objective was to reintroduce capturing of high-order pages freed by the compaction, before they are split by concurrent activity. However, several bugs and opportunities for simple improvements were found in the current implementation, mostly through extra tracepoints (which are however too ugly for now to be considered for sending). The patches mostly deal with two mechanisms that reduce compaction overhead, which is caching the progress of migrate and free scanners, and marking pageblocks where isolation failed to be skipped during further scans. Patch 1 (from mgorman) adds tracepoints that allow calculate time spent in compaction and potentially debug scanner pfn values. Patch 2 encapsulates the some functionality for handling deferred compactions for better maintainability, without a functional change type is not determined without being actually needed. Patch 3 fixes a bug where cached scanner pfn's are sometimes reset only after they have been read to initialize a compaction run. Patch 4 fixes a bug where scanners meeting is sometimes not properly detected and can lead to multiple compaction attempts quitting early without doing any work. Patch 5 improves the chances of sync compaction to process pageblocks that async compaction has skipped due to being !MIGRATE_MOVABLE. Patch 6 improves the chances of sync direct compaction to actually do anything when called after async compaction fails during allocation slowpath. The impact of patches were validated using mmtests's stress-highalloc benchmark with mmtests's stress-highalloc benchmark on a x86_64 machine with 4GB memory. Due to instability of the results (mostly related to the bugs fixed by patches 2 and 3), 10 iterations were performed, taking min,mean,max values for success rates and mean values for time and vmstat-based metrics. First, the default GFP_HIGHUSER_MOVABLE allocations were tested with the patches stacked on top of v3.13-rc2. Patch 2 is OK to serve as baseline due to no functional changes in 1 and 2. Comments below. stress-highalloc 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 2-nothp 3-nothp 4-nothp 5-nothp 6-nothp Success 1 Min 9.00 ( 0.00%) 10.00 (-11.11%) 43.00 (-377.78%) 43.00 (-377.78%) 33.00 (-266.67%) Success 1 Mean 27.50 ( 0.00%) 25.30 ( 8.00%) 45.50 (-65.45%) 45.90 (-66.91%) 46.30 (-68.36%) Success 1 Max 36.00 ( 0.00%) 36.00 ( 0.00%) 47.00 (-30.56%) 48.00 (-33.33%) 52.00 (-44.44%) Success 2 Min 10.00 ( 0.00%) 8.00 ( 20.00%) 46.00 (-360.00%) 45.00 (-350.00%) 35.00 (-250.00%) Success 2 Mean 26.40 ( 0.00%) 23.50 ( 10.98%) 47.30 (-79.17%) 47.60 (-80.30%) 48.10 (-82.20%) Success 2 Max 34.00 ( 0.00%) 33.00 ( 2.94%) 48.00 (-41.18%) 50.00 (-47.06%) 54.00 (-58.82%) Success 3 Min 65.00 ( 0.00%) 63.00 ( 3.08%) 85.00 (-30.77%) 84.00 (-29.23%) 85.00 (-30.77%) Success 3 Mean 76.70 ( 0.00%) 70.50 ( 8.08%) 86.20 (-12.39%) 85.50 (-11.47%) 86.00 (-12.13%) Success 3 Max 87.00 ( 0.00%) 86.00 ( 1.15%) 88.00 ( -1.15%) 87.00 ( 0.00%) 87.00 ( 0.00%) 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 2-nothp 3-nothp 4-nothp 5-nothp 6-nothp User 6437.72 6459.76 5960.32 5974.55 6019.67 System 1049.65 1049.09 1029.32 1031.47 1032.31 Elapsed 1856.77 1874.48 1949.97 1994.22 1983.15 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 3.13-rc2 2-nothp 3-nothp 4-nothp 5-nothp 6-nothp Minor Faults 253952267 254581900 250030122 250507333 250157829 Major Faults 420 407 506 530 530 Swap Ins 4 9 9 6 6 Swap Outs 398 375 345 346 333 Direct pages scanned 197538 189017 298574 287019 299063 Kswapd pages scanned 1809843 1801308 1846674 1873184 1861089 Kswapd pages reclaimed 1806972 1798684 1844219 1870509 1858622 Direct pages reclaimed 197227 188829 298380 286822 298835 Kswapd efficiency 99% 99% 99% 99% 99% Kswapd velocity 953.382 970.449 952.243 934.569 922.286 Direct efficiency 99% 99% 99% 99% 99% Direct velocity 104.058 101.832 153.961 143.200 148.205 Percentage direct scans 9% 9% 13% 13% 13% Zone normal velocity 347.289 359.676 348.063 339.933 332.983 Zone dma32 velocity 710.151 712.605 758.140 737.835 737.507 Zone dma velocity 0.000 0.000 0.000 0.000 0.000 Page writes by reclaim 557.600 429.000 353.600 426.400 381.800 Page writes file 159 53 7 79 48 Page writes anon 398 375 345 346 333 Page reclaim immediate 825 644 411 575 420 Sector Reads 2781750 2769780 2878547 2939128 2910483 Sector Writes 12080843 12083351 12012892 12002132 12010745 Page rescued immediate 0 0 0 0 0 Slabs scanned |
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Michal Hocko | 947b3dd1a8 |
memcg, oom: lock mem_cgroup_print_oom_info
mem_cgroup_print_oom_info uses a static buffer (memcg_name) to store the name of the cgroup. This is not safe as pointed out by David Rientjes because memcg oom is locked only for its hierarchy and nothing prevents another parallel hierarchy to trigger oom as well and overwrite the already in-use buffer. This patch introduces oom_info_lock hidden inside mem_cgroup_print_oom_info which is held throughout the function. It makes access to memcg_name safe and as a bonus it also prevents parallel memcg ooms to interleave their statistics which would make the printed data hard to analyze otherwise. Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | 286549dcaf |
sched: add tracepoints related to NUMA task migration
This patch adds three tracepoints o trace_sched_move_numa when a task is moved to a node o trace_sched_swap_numa when a task is swapped with another task o trace_sched_stick_numa when a numa-related migration fails The tracepoints allow the NUMA scheduler activity to be monitored and the following high-level metrics can be calculated o NUMA migrated stuck nr trace_sched_stick_numa o NUMA migrated idle nr trace_sched_move_numa o NUMA migrated swapped nr trace_sched_swap_numa o NUMA local swapped trace_sched_swap_numa src_nid == dst_nid (should never happen) o NUMA remote swapped trace_sched_swap_numa src_nid != dst_nid (should == NUMA migrated swapped) o NUMA group swapped trace_sched_swap_numa src_ngid == dst_ngid Maybe a small number of these are acceptable but a high number would be a major surprise. It would be even worse if bounces are frequent. o NUMA avg task migs. Average number of migrations for tasks o NUMA stddev task mig Self-explanatory o NUMA max task migs. Maximum number of migrations for a single task In general the intent of the tracepoints is to help diagnose problems where automatic NUMA balancing appears to be doing an excessive amount of useless work. [akpm@linux-foundation.org: remove semicolon-after-if, repair coding-style] Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | 64a9a34e22 |
mm: numa: do not automatically migrate KSM pages
KSM pages can be shared between tasks that are not necessarily related to each other from a NUMA perspective. This patch causes those pages to be ignored by automatic NUMA balancing so they do not migrate and do not cause unrelated tasks to be grouped together. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | af1839d722 |
mm: numa: trace tasks that fail migration due to rate limiting
A low local/remote numa hinting fault ratio is potentially explained by failed migrations. This patch adds a tracepoint that fires when migration fails due to migration rate limitation. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | 1c5e9c27cb |
mm: numa: limit scope of lock for NUMA migrate rate limiting
NUMA migrate rate limiting protects a migration counter and window using a lock but in some cases this can be a contended lock. It is not critical that the number of pages be perfect, lost updates are acceptable. Reduce the importance of this lock. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mel Gorman | 1c30e0177e |
mm: numa: make NUMA-migrate related functions static
numamigrate_update_ratelimit and numamigrate_isolate_page only have callers in mm/migrate.c. This patch makes them static. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Xishi Qiu | 25487d73a9 |
lib/show_mem.c: show num_poisoned_pages when oom
Show num_poisoned_pages when oom, it is a little helpful to find the reason. Also it will be emitted anytime show_mem() is called. Signed-off-by: Xishi Qiu <qiuxishi@huawei.com> Suggested-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: David Rientjes <rientjes@google.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Wanpeng Li | 4883e997b2 |
mm/hwpoison: add '#' to hwpoison_inject
Add '#' to hwpoison_inject just as done in madvise_hwpoison. Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Vladimir Murzin <murzin.v@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Grygorii Strashko | 560dca27a6 |
mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter
Check nid parameter and produce warning if it has deprecated MAX_NUMNODES value. Also re-assign NUMA_NO_NODE value to the nid parameter in this case. These will help to identify the wrong API usage (the caller) and make code simpler. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Grygorii Strashko | 9a28f9dc8d |
x86/mm: memblock: switch to use NUMA_NO_NODE
Update X86 code to use NUMA_NO_NODE instead of MAX_NUMNODES while calling memblock APIs, because memblock API will be changed to use NUMA_NO_NODE and will produce warning during boot otherwise. See: https://lkml.org/lkml/2013/12/9/898 Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Santosh Shilimkar | b6cb5bab26 |
arch/arm/mach-omap2/omap_hwmod.c: use memblock apis for early memory allocations
Switch to memblock interfaces for early memory allocator instead of bootmem allocator. No functional change in beahvior than what it is in current code from bootmem users points of view. Archs already converted to NO_BOOTMEM now directly use memblock interfaces instead of bootmem wrappers build on top of memblock. And the archs which still uses bootmem, these new apis just fallback to exiting bootmem APIs. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Santosh Shilimkar | cfb665864e |
arch/arm/mm/init.c: use memblock apis for early memory allocations
Switch to memblock interfaces for early memory allocator instead of bootmem allocator. No functional change in beahvior than what it is in current code from bootmem users points of view. Archs already converted to NO_BOOTMEM now directly use memblock interfaces instead of bootmem wrappers build on top of memblock. And the archs which still uses bootmem, these new apis just fallback to exiting bootmem APIs. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Santosh Shilimkar | 9233d2be10 |
arch/arm/kernel/: use memblock apis for early memory allocations
Switch to memblock interfaces for early memory allocator instead of bootmem allocator. No functional change in beahvior than what it is in current code from bootmem users points of view. Archs already converted to NO_BOOTMEM now directly use memblock interfaces instead of bootmem wrappers build on top of memblock. And the archs which still uses bootmem, these new apis just fallback to exiting bootmem APIs. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Santosh Shilimkar | 4fc0bc58cb |
drivers/firmware/memmap.c: use memblock apis for early memory allocations
Switch to memblock interfaces for early memory allocator instead of bootmem allocator. No functional change in beahvior than what it is in current code from bootmem users points of view. Archs already converted to NO_BOOTMEM now directly use memblock interfaces instead of bootmem wrappers build on top of memblock. And the archs which still uses bootmem, these new apis just fallback to exiting bootmem APIs. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Santosh Shilimkar | 9e43aa2b8d |
mm/memory_hotplug.c: use memblock apis for early memory allocations
Correct ensure_zone_is_initialized() function description according to the introduced memblock APIs for early memory allocations. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |