August 2019 - Linux-stable-mirror

Re: [PATCH 2/8] NFSv4: Fix delegation state recovery

by Sasha Levin

Hi, [This is an automated email] This commit has been processed because it contains a "Fixes:" tag, fixing commit: 24311f884189 NFSv4: Recovery of recalled read delegations is broken. The bot has tested the following trees: v5.2.5, v4.19.63, v4.14.135, v4.9.186, v4.4.186. v5.2.5: Build OK! v4.19.63: Failed to apply! Possible dependencies: 07d02a67b7fa ("SUNRPC: Simplify lookup code") 79b181810285 ("SUNRPC: Convert auth creds to use refcount_t") 8276c902bbe9 ("SUNRPC: remove uid and gid from struct auth_cred") 95cd623250ad ("SUNRPC: Clean up the AUTH cache code") 97f68c6b02e0 ("SUNRPC: add 'struct cred *' to auth_cred and rpc_cred") a52458b48af1 ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") fc0664fd9bcc ("SUNRPC: remove groupinfo from struct auth_cred.") v4.14.135: Failed to apply! Possible dependencies: 07d02a67b7fa ("SUNRPC: Simplify lookup code") 12f275cdd163 ("NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID.") 1eb5d98f16f6 ("nfs: convert to new i_version API") 35156bfff3c0 ("NFSv4: Fix the nfs_inode_set_delegation() arguments") 79b181810285 ("SUNRPC: Convert auth creds to use refcount_t") 95cd623250ad ("SUNRPC: Clean up the AUTH cache code") 97f68c6b02e0 ("SUNRPC: add 'struct cred *' to auth_cred and rpc_cred") a52458b48af1 ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") b3dce6a2f060 ("pnfs/blocklayout: handle transient devices") fc0664fd9bcc ("SUNRPC: remove groupinfo from struct auth_cred.") v4.9.186: Failed to apply! Possible dependencies: 1eb5d98f16f6 ("nfs: convert to new i_version API") 35156bfff3c0 ("NFSv4: Fix the nfs_inode_set_delegation() arguments") 39bc88e5e38e ("arm64: Disable TTBR0_EL1 during normal kernel execution") 7c0f6ba682b9 ("Replace <asm/uaccess.h> with <linux/uaccess.h> globally") 9cf09d68b89a ("arm64: xen: Enable user access before a privcmd hvc call") a52458b48af1 ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") b3dce6a2f060 ("pnfs/blocklayout: handle transient devices") bd38967d406f ("arm64: Factor out PAN enabling/disabling into separate uaccess_* macros") v4.4.186: Failed to apply! Possible dependencies: 0654cc726fc6 ("NFSv4.1/pNFS: Add a helper to mark the layout as returned") 10335556c9e6 ("NFSv4.1/pNFS: pnfs_error_mark_layout_for_return() must always return layout") 13c13a6ad71f ("pNFS: Fix missing layoutreturn calls") 2454dfea0aef ("NFSv4.x/pnfs: Fix a race between layoutget and pnfs_destroy_layout") 3982a6a2d0e6 ("pnfs: keep track of the return sequence number in pnfs_layout_hdr") 4b0934baf931 ("NFSv4.1/pNFS: Fix a race in initiate_file_draining()") 506c0d68269e ("NFSv4.1/pNFS: Cleanup constify struct pnfs_layout_range arguments") 50f563ef5d41 ("NFSv4.1/pNFS: Use nfs4_stateid_copy for copying stateids") 5c97f5de2c7c ("NFSv4.1/pNFS: pnfs_mark_matching_lsegs_return() should set the iomode") 68d264cf02b0 ("NFS42: handle layoutstats stateid error") 6d597e175012 ("pnfs: only tear down lsegs that precede seqid in LAYOUTRETURN args") 71b39854a500 ("NFSv4.1/pNFS: Cleanup pnfs_mark_matching_lsegs_invalid()") 9fd4b9fc7695 ("NFSv4.x/pnfs: Fix a race between layoutget and bulk recalls") a52458b48af1 ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") b20135d0b243 ("NFSv4.1/pNFS: Don't queue up a new commit if the layout segment is invalid") b3dce6a2f060 ("pnfs/blocklayout: handle transient devices") e036f46453f2 ("NFS: pnfs_mark_matching_lsegs_return() should match the layout sequence id") e0d9243048fd ("NFSv4.1/pNFS: Don't return NFS4ERR_DELAY unnecessarily in CB_LAYOUTRECALL") ed429d6b934d ("NFSv4.1/pNFS: Don't pass stateids by value to pnfs_send_layoutreturn()") fc7ff36747b9 ("pNFS: If we have to delay the layout callback, mark the layout for return") NOTE: The patch will not be queued to stable trees until it is upstream. How should we proceed with this patch? -- Thanks, Sasha

5 years, 5 months

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[PATCH 4.14 00/25] 4.14.136-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.136 release. There are 25 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sun 04 Aug 2019 09:19:34 AM UTC. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.136-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.136-rc1 Yan, Zheng <zyan(a)redhat.com> ceph: hold i_ceph_lock when removing caps for freeing inode Yoshinori Sato <ysato(a)users.sourceforge.jp> Fix allyesconfig output. Miroslav Lichvar <mlichvar(a)redhat.com> drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl Jann Horn <jannh(a)google.com> sched/fair: Don't free p->numa_faults with concurrent readers Vladis Dronov <vdronov(a)redhat.com> Bluetooth: hci_uart: check for missing tty operations Sunil Muthuswamy <sunilmut(a)microsoft.com> hv_sock: Add support for delayed close Joerg Roedel <jroedel(a)suse.de> iommu/iova: Fix compilation error with !CONFIG_IOMMU_IOVA Dmitry Safonov <dima(a)arista.com> iommu/vt-d: Don't queue_iova() if there is no flush queue Luke Nowakowski-Krijger <lnowakow(a)eng.ucsd.edu> media: radio-raremono: change devm_k*alloc to k*alloc Benjamin Coddington <bcodding(a)redhat.com> NFS: Cleanup if nfs_match_client is interrupted Andrey Konovalov <andreyknvl(a)google.com> media: pvrusb2: use a different format for warnings Oliver Neukum <oneukum(a)suse.com> media: cpia2_usb: first wake up, then free in disconnect Fabio Estevam <festevam(a)gmail.com> ath10k: Change the warning message string Sean Young <sean(a)mess.org> media: au0828: fix null dereference in error path Phong Tran <tranmanphong(a)gmail.com> ISDN: hfcsusb: checking idx of ep configuration Todd Kjos <tkjos(a)android.com> binder: fix possible UAF when freeing buffer Will Deacon <will.deacon(a)arm.com> arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ Abhishek Sahu <absahu(a)codeaurora.org> i2c: qup: fixed releasing dma without flush operation completion allen yan <yanwei(a)marvell.com> arm64: dts: marvell: Fix A37xx UART0 register size Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Fix lookup revalidate of regular files Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Refactor nfs_lookup_revalidate() Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Fix dentry revalidation on NFSv4 lookup Sunil Muthuswamy <sunilmut(a)microsoft.com> vsock: correct removal of socket from the list Stefan Hajnoczi <stefanha(a)redhat.com> VSOCK: use TCP state constants for sk_state ------------- Diffstat: .../devicetree/bindings/serial/mvebu-uart.txt | 2 +- Makefile | 4 +- arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 +- arch/arm64/include/asm/compat.h | 1 + arch/sh/boards/Kconfig | 14 +- drivers/android/binder.c | 16 +- drivers/bluetooth/hci_ath.c | 3 + drivers/bluetooth/hci_bcm.c | 3 + drivers/bluetooth/hci_intel.c | 3 + drivers/bluetooth/hci_ldisc.c | 13 + drivers/bluetooth/hci_mrvl.c | 3 + drivers/bluetooth/hci_uart.h | 1 + drivers/i2c/busses/i2c-qup.c | 2 + drivers/iommu/intel-iommu.c | 2 +- drivers/iommu/iova.c | 18 +- drivers/isdn/hardware/mISDN/hfcsusb.c | 3 + drivers/media/radio/radio-raremono.c | 30 ++- drivers/media/usb/au0828/au0828-core.c | 12 +- drivers/media/usb/cpia2/cpia2_usb.c | 3 +- drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 4 +- drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c | 6 +- drivers/media/usb/pvrusb2/pvrusb2-std.c | 2 +- drivers/net/wireless/ath/ath10k/usb.c | 2 +- drivers/pps/pps.c | 8 + fs/ceph/caps.c | 7 +- fs/exec.c | 2 +- fs/nfs/client.c | 4 +- fs/nfs/dir.c | 295 +++++++++++---------- fs/nfs/nfs4proc.c | 15 +- include/linux/iova.h | 6 + include/linux/sched/numa_balancing.h | 4 +- include/net/af_vsock.h | 3 - kernel/fork.c | 2 +- kernel/sched/fair.c | 24 +- net/vmw_vsock/af_vsock.c | 84 +++--- net/vmw_vsock/hyperv_transport.c | 118 ++++++--- net/vmw_vsock/virtio_transport.c | 2 +- net/vmw_vsock/virtio_transport_common.c | 22 +- net/vmw_vsock/vmci_transport.c | 34 +-- net/vmw_vsock/vmci_transport_notify.c | 2 +- net/vmw_vsock/vmci_transport_notify_qstate.c | 2 +- 41 files changed, 472 insertions(+), 311 deletions(-)

5 years, 5 months

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[PATCH 4.4 000/158] 4.4.187-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.187 release. There are 158 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sun 04 Aug 2019 09:19:34 AM UTC. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.187-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.4.187-rc1 Yan, Zheng <zyan(a)redhat.com> ceph: hold i_ceph_lock when removing caps for freeing inode Miroslav Lichvar <mlichvar(a)redhat.com> drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl Jann Horn <jannh(a)google.com> sched/fair: Don't free p->numa_faults with concurrent readers Vladis Dronov <vdronov(a)redhat.com> Bluetooth: hci_uart: check for missing tty operations Luke Nowakowski-Krijger <lnowakow(a)eng.ucsd.edu> media: radio-raremono: change devm_k*alloc to k*alloc Oliver Neukum <oneukum(a)suse.com> media: cpia2_usb: first wake up, then free in disconnect Phong Tran <tranmanphong(a)gmail.com> ISDN: hfcsusb: checking idx of ep configuration Soheil Hassas Yeganeh <soheil(a)google.com> tcp: reset sk_send_head in tcp_write_queue_purge Xin Long <lucien.xin(a)gmail.com> ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt Michal Hocko <mhocko(a)suse.com> mm, vmstat: make quiet_vmstat lighter Christoph Lameter <cl(a)linux.com> vmstat: Remove BUG_ON from vmstat_update Linus Torvalds <torvalds(a)linux-foundation.org> access: avoid the RCU grace period for the temporary subjective credentials Michael Neuling <mikey(a)neuling.org> powerpc/tm: Fix oops on sigreturn on systems without TM Hui Wang <hui.wang(a)canonical.com> ALSA: hda - Add a conexant codec entry to let mute led work Kai-Heng Feng <kai.heng.feng(a)canonical.com> ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1 Kefeng Wang <wangkefeng.wang(a)huawei.com> hpet: Fix division by zero in hpet_time_div() Zhenzhong Duan <zhenzhong.duan(a)oracle.com> x86/speculation/mds: Apply more accurate check on hypervisor platform Hans de Goede <hdegoede(a)redhat.com> x86/sysfb_efi: Add quirks for some devices with swapped width and height Ryan Kennedy <ryan5544(a)gmail.com> usb: pci-quirks: Correct AMD PLL quirk detection Phong Tran <tranmanphong(a)gmail.com> usb: wusbcore: fix unbalanced get/put cluster_id Arnd Bergmann <arnd(a)arndb.de> locking/lockdep: Hide unused 'class' variable Yuyang Du <duyuyang(a)gmail.com> locking/lockdep: Fix lock used or unused stats error Jean-Philippe Brucker <jean-philippe.brucker(a)arm.com> mm/mmu_notifier: use hlist_add_head_rcu() Christoph Hellwig <hch(a)lst.de> 9p: pass the correct prototype to read_cache_page Dmitry Vyukov <dvyukov(a)google.com> mm/kmemleak.c: fix check for softirq context Sam Ravnborg <sam(a)ravnborg.org> sh: prevent warnings when using iounmap Oliver O'Halloran <oohall(a)gmail.com> powerpc/eeh: Handle hugepages in ioremap space morten petersen <morten_bp(a)live.dk> mailbox: handle failed named mailbox channel request Ocean Chen <oceanchen(a)google.com> f2fs: avoid out-of-range memory access Numfor Mbiziwo-Tiapo <nums(a)google.com> perf test mmap-thread-lookup: Initialize variable to suppress memory sanitizer warning Vasily Gorbik <gor(a)linux.ibm.com> kallsyms: exclude kasan local symbols on s390 Geert Uytterhoeven <geert+renesas(a)glider.be> serial: sh-sci: Fix TX DMA buffer flushing and workqueue races Christian Lamparter <chunkeey(a)gmail.com> powerpc/4xx/uic: clear pending interrupt after irq type/pol change Johannes Berg <johannes.berg(a)intel.com> um: Silence lockdep complaint about mmap_sem Arnd Bergmann <arnd(a)arndb.de> mfd: arizona: Fix undefined behavior Robert Hancock <hancock(a)sedsystems.ca> mfd: core: Set fwnode for created devices Naveen N. Rao <naveen.n.rao(a)linux.vnet.ibm.com> recordmcount: Fix spurious mcount entries on powerpc Bastien Nocera <hadess(a)hadess.net> iio: iio-utils: Fix possible incorrect mask calculation Marek Vasut <marek.vasut+renesas(a)gmail.com> PCI: sysfs: Ignore lockdep for remove attribute Alexey Kardashevskiy <aik(a)ozlabs.ru> powerpc/pci/of: Fix OF flags parsing for 64bit BARs Andrzej Pietrasiewicz <andrzej.p(a)collabora.com> usb: gadget: Zero ffs_io_data Nathan Lynch <nathanl(a)linux.ibm.com> powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration Nathan Lynch <nathanl(a)linux.ibm.com> powerpc/pseries/mobility: prevent cpu hotplug during DT update Yoshihiro Shimoda <yoshihiro.shimoda.uh(a)renesas.com> phy: renesas: rcar-gen2: Fix memory leak at error paths David Riley <davidriley(a)chromium.org> drm/virtio: Add memory barriers for capset cache. Jorge Ramirez-Ortiz <jorge.ramirez-ortiz(a)linaro.org> tty: serial: msm_serial: avoid system lockup condition Kefeng Wang <wangkefeng.wang(a)huawei.com> tty/serial: digicolor: Fix digicolor-usart already registered warning Wang Hai <wanghai26(a)huawei.com> memstick: Fix error cleanup path of memstick_init Christophe Leroy <christophe.leroy(a)c-s.fr> tty: serial: cpm_uart - fix init when SMC is relocated Wen Yang <wen.yang99(a)zte.com.cn> pinctrl: rockchip: fix leaked of_node references Serge Semin <fancer.lancer(a)gmail.com> tty: max310x: Fix invalid baudrate divisors calculator Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: core: hub: Disable hub-initiated U1/U2 Peter Ujfalusi <peter.ujfalusi(a)ti.com> drm/panel: simple: Fix panel_simple_dsi_probe Paul Menzel <pmenzel(a)molgen.mpg.de> nfsd: Fix overflow causing non-working mounts on 1 TB machines J. Bruce Fields <bfields(a)redhat.com> nfsd: fix performance-limiting session calculation J. Bruce Fields <bfields(a)redhat.com> nfsd: give out fewer session slots as limit approaches J. Bruce Fields <bfields(a)redhat.com> nfsd: increase DRC cache limit Trond Myklebust <trond.myklebust(a)primarydata.com> NFSv4: Fix open create exclusive when the server reboots Eric Biggers <ebiggers(a)google.com> elevator: fix truncation of icq_cache_name Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> net: bridge: stp: don't cache eth dest pointer before skb pull Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling Cong Wang <xiyou.wangcong(a)gmail.com> bonding: validate ip header before check IPPROTO_IGMP Christoph Paasch <cpaasch(a)apple.com> tcp: Reset bytes_acked and bytes_received when disconnecting Cong Wang <xiyou.wangcong(a)gmail.com> netrom: hold sock when setting skb->destructor Cong Wang <xiyou.wangcong(a)gmail.com> netrom: fix a memory leak in nr_rx_frame() Takashi Iwai <tiwai(a)suse.de> sky2: Disable MSI on ASUS P6T Yang Wei <albin_yang(a)163.com> nfc: fix potential illegal memory access Lorenzo Bianconi <lorenzo.bianconi(a)redhat.com> net: neigh: fix multiple neigh timer scheduling Justin Chen <justinpopo6(a)gmail.com> net: bcmgenet: use promisc for unsupported filters Matteo Croce <mcroce(a)redhat.com> ipv4: don't set IPv6 only flags to IPv4 addresses Taehee Yoo <ap420073(a)gmail.com> caif-hsi: fix possible deadlock in cfhsi_exit_module() Brian King <brking(a)linux.vnet.ibm.com> bnx2x: Prevent load reordering in tx completion processing Junxiao Bi <junxiao.bi(a)oracle.com> dm bufio: fix deadlock with loop device Lee, Chiasheng <chiasheng.lee(a)intel.com> usb: Handle USB3 remote wakeup for LPM enabled devices correctly Szymon Janc <szymon.janc(a)codecoup.pl> Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug Alexander Shishkin <alexander.shishkin(a)linux.intel.com> intel_th: msu: Fix single mode with disabled IOMMU Dan Carpenter <dan.carpenter(a)oracle.com> eCryptfs: fix a couple type promotion bugs Ravi Bangoria <ravi.bangoria(a)linux.ibm.com> powerpc/watchpoint: Restore NV GPRs while returning from exception Christophe Leroy <christophe.leroy(a)c-s.fr> powerpc/32s: fix suspend/resume when IBATs 4-7 are used Helge Deller <deller(a)gmx.de> parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1 Steve Longerbeam <slongerbeam(a)gmail.com> gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM Jan Harkes <jaharkes(a)cs.cmu.edu> coda: pass the host file in vma->vm_file on mmap Denis Efremov <efremov(a)ispras.ru> floppy: fix out-of-bounds read in copy_buffer Denis Efremov <efremov(a)ispras.ru> floppy: fix invalid pointer dereference in drive_name Denis Efremov <efremov(a)ispras.ru> floppy: fix out-of-bounds read in next_valid_format Denis Efremov <efremov(a)ispras.ru> floppy: fix div-by-zero in setup_format_params Al Viro <viro(a)zeniv.linux.org.uk> take floppy compat ioctls to sodding floppy.c Mika Westerberg <mika.westerberg(a)linux.intel.com> PCI: Do not poll for PME if the device is in D3cold YueHaibing <yuehaibing(a)huawei.com> 9p/virtio: Add cleanup path in p9_virtio_init Daniel Jordan <daniel.m.jordan(a)oracle.com> padata: use smp_mb in padata_reorder to avoid orphaned padata jobs Lyude Paul <lyude(a)redhat.com> drm/nouveau/i2c: Enable i2c pads & busses during preinit Like Xu <like.xu(a)linux.intel.com> KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed Ezequiel Garcia <ezequiel(a)collabora.com> media: coda: Remove unbalanced and unneeded mutex unlock Boris Brezillon <boris.brezillon(a)collabora.com> media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom() Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Break too long mutex context in the write loop Christophe Leroy <christophe.leroy(a)c-s.fr> lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Handle the special Linux file open access mode Eiichi Tsukata <devel(a)etsukata.com> tracing/snapshot: Resize spare buffer if size changed Krzysztof Kozlowski <krzk(a)kernel.org> regulator: s2mps11: Fix buck7 and buck8 wrong voltages Grant Hernandez <granthernandez(a)google.com> Input: gtco - bounds check collection indent level Elena Petrova <lenaptr(a)google.com> crypto: arm64/sha2-ce - correct digest for empty data in finup Elena Petrova <lenaptr(a)google.com> crypto: arm64/sha1-ce - correct digest for empty data in finup Eric Biggers <ebiggers(a)google.com> crypto: ghash - fix unaligned memory access in ghash_setkey() csonsino <csonsino(a)gmail.com> Bluetooth: validate BLE connection interval updates Matias Karhumaa <matias.karhumaa(a)gmail.com> Bluetooth: Check state in l2cap_disconnect_rsp Josua Mayer <josua.mayer(a)jm0.eu> Bluetooth: 6lowpan: search for destination address in all peers Tomas Bortoli <tomasbortoli(a)gmail.com> Bluetooth: hci_bcsp: Fix memory leak in rx_skb Coly Li <colyli(a)suse.de> bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush() Eiichi Tsukata <devel(a)etsukata.com> EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec Mauro S. M. Rodrigues <maurosr(a)linux.vnet.ibm.com> ixgbe: Check DDM existence in transceiver before access Ferdinand Blomqvist <ferdinand.blomqvist(a)gmail.com> rslib: Fix handling of of caller provided syndrome Ferdinand Blomqvist <ferdinand.blomqvist(a)gmail.com> rslib: Fix decoding of shortened codes Miaoqing Pan <miaoqing(a)codeaurora.org> ath10k: fix PCIE device wake up failed Lorenzo Bianconi <lorenzo(a)kernel.org> mt7601u: fix possible memory leak when the device is disconnected Masahiro Yamada <yamada.masahiro(a)socionext.com> x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c Lorenzo Bianconi <lorenzo(a)kernel.org> mt7601u: do not schedule rx_tasklet when the device has been disconnected Philipp Zabel <p.zabel(a)pengutronix.de> media: coda: increment sequence offset for the last returned frame Philipp Zabel <p.zabel(a)pengutronix.de> media: coda: fix mpeg2 sequence number handling Ard Biesheuvel <ard.biesheuvel(a)linaro.org> acpi/arm64: ignore 5.1 FADTs that are reported as 5.0 Nathan Huckleberry <nhuck(a)google.com> timer_list: Guard procfs specific code Miroslav Lichvar <mlichvar(a)redhat.com> ntp: Limit TAI-UTC offset Anders Roxell <anders.roxell(a)linaro.org> media: i2c: fix warning same module names Pan Bian <bianpan2016(a)163.com> EDAC/sysfs: Fix memory leak when creating a csrow object Jason Wang <jasowang(a)redhat.com> vhost_net: disable zerocopy by default Arnaldo Carvalho de Melo <acme(a)redhat.com> perf evsel: Make perf_evsel__name() accept a NULL argument Nicolas Dichtel <nicolas.dichtel(a)6wind.com> xfrm: fix sa selector validation Waiman Long <longman(a)redhat.com> rcu: Force inlining of rcu_read_lock() Valdis Kletnieks <valdis.kletnieks(a)vt.edu> bpf: silence warning messages in core Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> regmap: fix bulk writes on paged registers Russell King <rmk+kernel(a)armlinux.org.uk> gpio: omap: ensure irq is enabled before wakeup Russell King <rmk+kernel(a)armlinux.org.uk> gpio: omap: fix lack of irqstatus_raw0 for OMAP4 Thomas Richter <tmricht(a)linux.ibm.com> perf test 6: Fix missing kvm module load for s390 Julian Wiedmann <jwi(a)linux.ibm.com> s390/qdio: handle PENDING state for QEBSM devices Robert Hancock <hancock(a)sedsystems.ca> net: axienet: Fix race condition causing TX hang Fabio Estevam <festevam(a)gmail.com> net: fec: Do not use netdev messages too early Abhishek Goel <huntbag(a)linux.vnet.ibm.com> cpupower : frequency-set -r option misses the last cpu in related cpu list Kefeng Wang <wangkefeng.wang(a)huawei.com> media: wl128x: Fix some error handling in fm_v4l2_init_video_device() Imre Deak <imre.deak(a)intel.com> locking/lockdep: Fix merging of hlocks with non-zero references David S. Miller <davem(a)davemloft.net> tua6100: Avoid build warnings. Ioana Ciornei <ioana.ciornei(a)nxp.com> net: phy: Check against net_device being NULL Shailendra Verma <shailendra.v(a)samsung.com> media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails. Anirudh Gupta <anirudhrudr(a)gmail.com> xfrm: Fix xfrm sel prefix length validation Jeremy Sowden <jeremy(a)azazel.net> af_key: fix leaks in key_pol_get_resp and dump_sp. Eric W. Biederman <ebiederm(a)xmission.com> signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig Jose Abreu <Jose.Abreu(a)synopsys.com> net: stmmac: dwmac1000: Clear unused address entries Kangjie Lu <kjlu(a)umn.edu> media: vpss: fix a potential NULL pointer dereference Lubomir Rintel <lkundrak(a)v3.sk> media: marvell-ccic: fix DMA s/g desc number calculation Christophe Leroy <christophe.leroy(a)c-s.fr> crypto: talitos - fix skcipher failure due to wrong output IV Oliver Neukum <oneukum(a)suse.com> media: dvb: usb: fix use after free in dvb_usb_device_exit Jeremy Sowden <jeremy(a)azazel.net> batman-adv: fix for leaked TVLV handler. Anilkumar Kolli <akolli(a)codeaurora.org> ath: DFS JP domain W56 fixed pulse type 3 RADAR detection Dan Carpenter <dan.carpenter(a)oracle.com> ath6kl: add some bounds checking Tim Schumacher <timschumi(a)gmx.de> ath9k: Check for errors when reading SREV register Surabhi Vishnoi <svishnoi(a)codeaurora.org> ath10k: Do not send probe response template for mesh Sven Van Asbroeck <thesven73(a)gmail.com> dmaengine: imx-sdma: fix use-after-free on probe error path Kevin Darbyshire-Bryant <ldir(a)darbyshire-bryant.me.uk> MIPS: fix build on non-linux hosts Stefan Hellermann <stefan(a)the2masters.de> MIPS: ath79: fix ar933x uart parity mode ------------- Diffstat: Makefile | 4 +- arch/arm64/crypto/sha1-ce-glue.c | 2 +- arch/arm64/crypto/sha2-ce-glue.c | 2 +- arch/arm64/kernel/acpi.c | 10 +- arch/mips/boot/compressed/Makefile | 2 + arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 2 +- arch/mips/include/asm/mach-ath79/ar933x_uart.h | 4 +- arch/parisc/kernel/ptrace.c | 28 +- arch/powerpc/kernel/eeh.c | 15 +- arch/powerpc/kernel/exceptions-64s.S | 9 +- arch/powerpc/kernel/pci_of_scan.c | 2 + arch/powerpc/kernel/signal_32.c | 3 + arch/powerpc/kernel/signal_64.c | 5 + arch/powerpc/kernel/swsusp_32.S | 73 ++++- arch/powerpc/platforms/powermac/sleep.S | 68 +++- arch/powerpc/platforms/pseries/mobility.c | 19 ++ arch/powerpc/sysdev/uic.c | 1 + arch/sh/include/asm/io.h | 6 +- arch/um/include/asm/mmu_context.h | 2 +- arch/x86/kernel/cpu/bugs.c | 2 +- arch/x86/kernel/cpu/mkcapflags.sh | 2 + arch/x86/kernel/sysfb_efi.c | 46 +++ arch/x86/kvm/pmu.c | 4 +- block/compat_ioctl.c | 340 ------------------- crypto/ghash-generic.c | 8 +- drivers/base/regmap/regmap.c | 2 + drivers/block/floppy.c | 362 ++++++++++++++++++++- drivers/bluetooth/hci_ath.c | 3 + drivers/bluetooth/hci_bcm.c | 3 + drivers/bluetooth/hci_bcsp.c | 5 + drivers/bluetooth/hci_intel.c | 3 + drivers/bluetooth/hci_ldisc.c | 9 + drivers/bluetooth/hci_uart.h | 1 + drivers/char/hpet.c | 3 +- drivers/crypto/talitos.c | 4 + drivers/dma/imx-sdma.c | 48 +-- drivers/edac/edac_mc_sysfs.c | 24 +- drivers/edac/edac_module.h | 2 +- drivers/gpio/gpio-omap.c | 17 +- drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c | 20 ++ drivers/gpu/drm/panel/panel-simple.c | 9 +- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 3 + drivers/gpu/drm/virtio/virtgpu_vq.c | 2 + drivers/gpu/ipu-v3/ipu-ic.c | 2 +- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/input/tablet/gtco.c | 20 +- drivers/isdn/hardware/mISDN/hfcsusb.c | 3 + drivers/mailbox/mailbox.c | 6 +- drivers/md/bcache/super.c | 2 +- drivers/md/dm-bufio.c | 4 +- drivers/media/dvb-frontends/tua6100.c | 22 +- drivers/media/i2c/Makefile | 2 +- drivers/media/i2c/{adv7511.c => adv7511-v4l2.c} | 5 + drivers/media/platform/coda/coda-bit.c | 9 +- drivers/media/platform/davinci/vpss.c | 5 + drivers/media/platform/marvell-ccic/mcam-core.c | 5 +- drivers/media/radio/radio-raremono.c | 30 +- drivers/media/radio/wl128x/fmdrv_v4l2.c | 3 + drivers/media/usb/cpia2/cpia2_usb.c | 3 +- drivers/media/usb/dvb-usb/dvb-usb-init.c | 7 +- drivers/media/v4l2-core/v4l2-ctrls.c | 9 +- drivers/memstick/core/memstick.c | 13 +- drivers/mfd/arizona-core.c | 2 +- drivers/mfd/mfd-core.c | 1 + drivers/net/bonding/bond_main.c | 37 ++- drivers/net/caif/caif_hsi.c | 2 +- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 3 + drivers/net/ethernet/broadcom/genet/bcmgenet.c | 57 ++-- drivers/net/ethernet/freescale/fec_main.c | 6 +- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 3 +- drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 1 + drivers/net/ethernet/marvell/sky2.c | 7 + .../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 6 + drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 20 +- drivers/net/phy/phy_device.c | 6 + drivers/net/wireless/ath/ath10k/hw.c | 2 +- drivers/net/wireless/ath/ath10k/mac.c | 4 + drivers/net/wireless/ath/ath6kl/wmi.c | 10 +- drivers/net/wireless/ath/ath9k/hw.c | 32 +- drivers/net/wireless/ath/dfs_pattern_detector.c | 2 +- drivers/net/wireless/mediatek/mt7601u/dma.c | 54 +-- drivers/net/wireless/mediatek/mt7601u/tx.c | 4 +- drivers/pci/pci-sysfs.c | 2 +- drivers/pci/pci.c | 7 + drivers/phy/phy-rcar-gen2.c | 2 + drivers/pinctrl/pinctrl-rockchip.c | 1 + drivers/pps/pps.c | 8 + drivers/regulator/s2mps11.c | 4 +- drivers/s390/cio/qdio_main.c | 1 + drivers/staging/media/davinci_vpfe/vpfe_video.c | 3 + drivers/tty/serial/cpm_uart/cpm_uart_core.c | 17 +- drivers/tty/serial/digicolor-usart.c | 6 +- drivers/tty/serial/max310x.c | 51 +-- drivers/tty/serial/msm_serial.c | 4 + drivers/tty/serial/sh-sci.c | 22 +- drivers/usb/core/hub.c | 35 +- drivers/usb/gadget/function/f_fs.c | 6 +- drivers/usb/host/hwa-hc.c | 2 +- drivers/usb/host/pci-quirks.c | 31 +- drivers/vhost/net.c | 2 +- fs/9p/vfs_addr.c | 6 +- fs/ceph/caps.c | 7 +- fs/coda/file.c | 69 +++- fs/ecryptfs/crypto.c | 12 +- fs/exec.c | 2 +- fs/f2fs/segment.c | 5 + fs/nfs/inode.c | 1 + fs/nfs/nfs4file.c | 2 +- fs/nfs/nfs4proc.c | 41 ++- fs/nfsd/nfs4state.c | 11 +- fs/nfsd/nfssvc.c | 2 +- fs/open.c | 19 ++ include/linux/cred.h | 7 +- include/linux/elevator.h | 2 +- include/linux/rcupdate.h | 2 +- include/linux/sched.h | 4 +- include/net/tcp.h | 11 +- kernel/bpf/Makefile | 1 + kernel/cred.c | 21 +- kernel/fork.c | 2 +- kernel/locking/lockdep.c | 18 +- kernel/locking/lockdep_proc.c | 8 +- kernel/padata.c | 12 + kernel/pid_namespace.c | 2 +- kernel/sched/fair.c | 24 +- kernel/time/ntp.c | 4 +- kernel/time/timer_list.c | 36 +- kernel/trace/trace.c | 12 +- lib/reed_solomon/decode_rs.c | 18 +- lib/scatterlist.c | 9 +- mm/kmemleak.c | 2 +- mm/mmu_notifier.c | 2 +- mm/vmstat.c | 80 +++-- net/9p/trans_virtio.c | 8 +- net/batman-adv/translation-table.c | 2 + net/bluetooth/6lowpan.c | 14 +- net/bluetooth/hci_event.c | 5 + net/bluetooth/l2cap_core.c | 15 +- net/bluetooth/smp.c | 13 + net/bridge/br_multicast.c | 32 +- net/bridge/br_stp_bpdu.c | 3 +- net/core/neighbour.c | 2 + net/ipv4/devinet.c | 8 + net/ipv4/tcp.c | 2 + net/ipv6/ip6mr.c | 11 +- net/key/af_key.c | 8 +- net/netrom/af_netrom.c | 4 +- net/nfc/nci/data.c | 2 +- net/xfrm/xfrm_user.c | 19 ++ scripts/kallsyms.c | 3 + scripts/recordmcount.h | 3 +- sound/core/seq/seq_clientmgr.c | 11 +- sound/pci/hda/patch_conexant.c | 1 + sound/usb/line6/podhd.c | 2 +- tools/iio/iio_utils.c | 4 +- tools/perf/tests/mmap-thread-lookup.c | 2 +- tools/perf/tests/parse-events.c | 27 ++ tools/perf/util/evsel.c | 8 +- tools/power/cpupower/utils/cpufreq-set.c | 2 + 159 files changed, 1670 insertions(+), 789 deletions(-)

5 years, 5 months

6
165
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[PATCH 4.14 00/43] 4.14.132-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.132 release. There are 43 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu 04 Jul 2019 07:59:45 AM UTC. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.132-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.132-rc1 Xin Long <lucien.xin(a)gmail.com> tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb Will Deacon <will.deacon(a)arm.com> futex: Update comments and docs about return values of arch futex code Daniel Borkmann <daniel(a)iogearbox.net> bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd Will Deacon <will.deacon(a)arm.com> arm64: futex: Avoid copying out uninitialised stack in failed cmpxchg() Martin KaFai Lau <kafai(a)fb.com> bpf: udp: ipv6: Avoid running reuseport's bpf_prog from __udp6_lib_err Martin KaFai Lau <kafai(a)fb.com> bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro YueHaibing <yuehaibing(a)huawei.com> bonding: Always enable vlan tx offload YueHaibing <yuehaibing(a)huawei.com> team: Always enable vlan tx offload Fei Li <lifei.shirley(a)bytedance.com> tun: wake up waitqueues after IFF_UP is set Xin Long <lucien.xin(a)gmail.com> tipc: check msg->req data len in tipc_nl_compat_bearer_disable Xin Long <lucien.xin(a)gmail.com> tipc: change to use register_pernet_device Xin Long <lucien.xin(a)gmail.com> sctp: change to hold sk after auth shkey is created successfully Roland Hii <roland.king.guan.hii(a)intel.com> net: stmmac: fixed new system time seconds value calculation JingYi Hou <houjingyi647(a)gmail.com> net: remove duplicate fetch in sock_getsockopt Eric Dumazet <edumazet(a)google.com> net/packet: fix memory leak in packet_set_ring() Stephen Suryaputra <ssuryaextr(a)gmail.com> ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop Neil Horman <nhorman(a)tuxdriver.com> af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET Wang Xin <xin.wang7(a)cn.bosch.com> eeprom: at24: fix unexpected timeout under high load Geert Uytterhoeven <geert(a)linux-m68k.org> cpu/speculation: Warn on unsupported mitigations= parameter Trond Myklebust <trondmy(a)gmail.com> NFS/flexfiles: Use the correct TCP timeout for flexfiles I/O Thomas Gleixner <tglx(a)linutronix.de> x86/microcode: Fix the microcode load on CPU hotplug for real Alejandro Jimenez <alejandro.j.jimenez(a)oracle.com> x86/speculation: Allow guests to use SSBD even if host does not Jan Kara <jack(a)suse.cz> scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck() zhangyi (F) <yi.zhang(a)huawei.com> dm log writes: make sure super sector log updates are written in order Colin Ian King <colin.king(a)canonical.com> mm/page_idle.c: fix oops because end_pfn is larger than max_pfn Jann Horn <jannh(a)google.com> fs/binfmt_flat.c: make load_flat_shared_library() work zhong jiang <zhongjiang(a)huawei.com> mm/mempolicy.c: fix an incorrect rebind node in mpol_rebind_nodemask John Ogness <john.ogness(a)linutronix.de> fs/proc/array.c: allow reporting eip/esp for all coredumping threads Sasha Levin <sashal(a)kernel.org> Revert "compiler.h: update definition of unreachable()" Kristian Evensen <kristian.evensen(a)gmail.com> qmi_wwan: Fix out-of-bounds read Adeodato Simó <dato(a)net.com.org.es> net/9p: include trans_common.h to fix missing prototype warning. Dominique Martinet <dominique.martinet(a)cea.fr> 9p: p9dirent_read: check network-provided name length Dominique Martinet <dominique.martinet(a)cea.fr> 9p/rdma: remove useless check in cm_event_handler Dominique Martinet <dominique.martinet(a)cea.fr> 9p: acl: fix uninitialized iattr access Dominique Martinet <dominique.martinet(a)cea.fr> 9p/rdma: do not disconnect on down_interruptible EAGAIN Dominique Martinet <dominique.martinet(a)cea.fr> 9p/xen: fix check for xenbus_read error in front_probe Martin Wilck <mwilck(a)suse.com> block: bio_iov_iter_get_pages: pin more pages for multi-segment IOs Christoph Hellwig <hch(a)lst.de> block: add a lower-level bio_add_page interface Mike Marciniszyn <mike.marciniszyn(a)intel.com> IB/hfi1: Close PSM sdma_progress sleep window Sasha Levin <sashal(a)kernel.org> Revert "x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP" Arnaldo Carvalho de Melo <acme(a)redhat.com> perf header: Fix unchecked usage of strncpy() Arnaldo Carvalho de Melo <acme(a)redhat.com> perf help: Remove needless use of strncpy() Arnaldo Carvalho de Melo <acme(a)redhat.com> perf ui helpline: Use strlcpy() as a shorter form of strncpy() + explicit set nul ------------- Diffstat: Documentation/robust-futexes.txt | 3 +- Makefile | 4 +- arch/arm64/include/asm/futex.h | 4 +- arch/arm64/include/asm/insn.h | 8 ++ arch/arm64/kernel/insn.c | 40 +++++++ arch/arm64/net/bpf_jit.h | 4 + arch/arm64/net/bpf_jit_comp.c | 28 +++-- arch/x86/kernel/cpu/bugs.c | 11 +- arch/x86/kernel/cpu/microcode/core.c | 15 ++- block/bio.c | 131 +++++++++++++++------ drivers/infiniband/hw/hfi1/user_sdma.c | 12 +- drivers/infiniband/hw/hfi1/user_sdma.h | 1 - drivers/md/dm-log-writes.c | 23 +++- drivers/misc/eeprom/at24.c | 107 ++++++++++++----- drivers/net/bonding/bond_main.c | 2 +- .../net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c | 2 +- drivers/net/team/team.c | 2 +- drivers/net/tun.c | 19 ++- drivers/net/usb/qmi_wwan.c | 4 +- drivers/scsi/vmw_pvscsi.c | 6 +- fs/9p/acl.c | 2 +- fs/binfmt_flat.c | 23 ++-- fs/nfs/flexfilelayout/flexfilelayoutdev.c | 2 +- fs/proc/array.c | 2 +- include/asm-generic/futex.h | 8 +- include/linux/bio.h | 9 ++ include/linux/compiler.h | 5 +- kernel/cpu.c | 3 + kernel/trace/trace_branch.c | 4 - mm/mempolicy.c | 2 +- mm/page_idle.c | 4 +- net/9p/protocol.c | 12 +- net/9p/trans_common.c | 1 + net/9p/trans_rdma.c | 7 +- net/9p/trans_xen.c | 4 +- net/core/sock.c | 3 - net/ipv4/raw.c | 2 +- net/ipv4/udp.c | 6 +- net/ipv6/udp.c | 4 +- net/packet/af_packet.c | 23 +++- net/packet/internal.h | 1 + net/sctp/endpointola.c | 8 +- net/tipc/core.c | 12 +- net/tipc/netlink_compat.c | 18 ++- net/tipc/udp_media.c | 8 +- tools/perf/builtin-help.c | 2 +- tools/perf/ui/tui/helpline.c | 2 +- tools/perf/util/header.c | 2 +- 48 files changed, 418 insertions(+), 187 deletions(-)

5 years, 5 months

11
56
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[PATCH v3 1/3] KVM: Fix leak vCPU's VMCS value into other pCPU

by Wanpeng Li

From: Wanpeng Li <wanpengli(a)tencent.com> After commit d73eb57b80b (KVM: Boost vCPUs that are delivering interrupts), a five years old bug is exposed. Running ebizzy benchmark in three 80 vCPUs VMs on one 80 pCPUs Skylake server, a lot of rcu_sched stall warning splatting in the VMs after stress testing: INFO: rcu_sched detected stalls on CPUs/tasks: { 4 41 57 62 77} (detected by 15, t=60004 jiffies, g=899, c=898, q=15073) Call Trace: flush_tlb_mm_range+0x68/0x140 tlb_flush_mmu.part.75+0x37/0xe0 tlb_finish_mmu+0x55/0x60 zap_page_range+0x142/0x190 SyS_madvise+0x3cd/0x9c0 system_call_fastpath+0x1c/0x21 swait_active() sustains to be true before finish_swait() is called in kvm_vcpu_block(), voluntarily preempted vCPUs are taken into account by kvm_vcpu_on_spin() loop greatly increases the probability condition kvm_arch_vcpu_runnable(vcpu) is checked and can be true, when APICv is enabled the yield-candidate vCPU's VMCS RVI field leaks(by vmx_sync_pir_to_irr()) into spinning-on-a-taken-lock vCPU's current VMCS. This patch fixes it by checking conservatively a subset of events. Cc: Paolo Bonzini <pbonzini(a)redhat.com> Cc: Radim Krčmář <rkrcmar(a)redhat.com> Cc: Christian Borntraeger <borntraeger(a)de.ibm.com> Cc: Marc Zyngier <Marc.Zyngier(a)arm.com> Cc: stable(a)vger.kernel.org Fixes: 98f4a1467 (KVM: add kvm_arch_vcpu_runnable() test to kvm_vcpu_on_spin() loop) Signed-off-by: Wanpeng Li <wanpengli(a)tencent.com> --- v2 -> v3: * check conservatively a subset of events v1 -> v2: * checking swait_active(&vcpu->wq) for involuntary preemption arch/mips/kvm/mips.c | 5 +++++ arch/powerpc/kvm/powerpc.c | 5 +++++ arch/s390/kvm/kvm-s390.c | 5 +++++ arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/svm.c | 6 ++++++ arch/x86/kvm/vmx/vmx.c | 6 ++++++ arch/x86/kvm/x86.c | 23 +++++++++++++++++++++++ include/linux/kvm_host.h | 1 + virt/kvm/arm/arm.c | 5 +++++ virt/kvm/kvm_main.c | 13 ++++++++++++- 10 files changed, 69 insertions(+), 1 deletion(-) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 2cfe839..95a4642 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -98,6 +98,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) return !!(vcpu->arch.pending_exceptions); } +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu) +{ + return kvm_arch_vcpu_runnable(vcpu); +} + bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) { return false; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0dba7eb..3e34d5f 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -50,6 +50,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) return !!(v->arch.pending_exceptions) || kvm_request_pending(v); } +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu) +{ + return kvm_arch_vcpu_runnable(vcpu); +} + bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) { return false; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 3f520cd8..5623b23 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3102,6 +3102,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) return kvm_s390_vcpu_has_irq(vcpu, 0); } +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu) +{ + return kvm_arch_vcpu_runnable(vcpu); +} + bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) { return !(vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE); diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 7b0a4ee..de39a58 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1175,6 +1175,7 @@ struct kvm_x86_ops { int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, bool set); void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu); + bool (*apicv_test_pi_on)(struct kvm_vcpu *vcpu); int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc, bool *expired); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 7eafc69..1921f37 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5190,6 +5190,11 @@ static void svm_deliver_avic_intr(struct kvm_vcpu *vcpu, int vec) kvm_vcpu_wake_up(vcpu); } +static bool svm_apicv_test_pi_on(struct kvm_vcpu *vcpu) +{ + return false; +} + static void svm_ir_list_del(struct vcpu_svm *svm, struct amd_iommu_pi_data *pi) { unsigned long flags; @@ -7314,6 +7319,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .pmu_ops = &amd_pmu_ops, .deliver_posted_interrupt = svm_deliver_avic_intr, + .apicv_test_pi_on = svm_apicv_test_pi_on, .update_pi_irte = svm_update_pi_irte, .setup_mce = svm_setup_mce, diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 074385c..863d641 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -6117,6 +6117,11 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu) return max_irr; } +static bool vmx_apicv_test_pi_on(struct kvm_vcpu *vcpu) +{ + return pi_test_on(vcpu_to_pi_desc(vcpu)); +} + static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) { if (!kvm_vcpu_apicv_active(vcpu)) @@ -7726,6 +7731,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .guest_apic_has_interrupt = vmx_guest_apic_has_interrupt, .sync_pir_to_irr = vmx_sync_pir_to_irr, .deliver_posted_interrupt = vmx_deliver_posted_interrupt, + .apicv_test_pi_on = vmx_apicv_test_pi_on, .set_tss_addr = vmx_set_tss_addr, .set_identity_map_addr = vmx_set_identity_map_addr, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c6d951c..177544e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9698,6 +9698,29 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) return kvm_vcpu_running(vcpu) || kvm_vcpu_has_events(vcpu); } +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu) +{ + if (READ_ONCE(vcpu->arch.pv.pv_unhalted)) + return true; + + if (kvm_test_request(KVM_REQ_NMI, vcpu) || + (READ_ONCE(vcpu->arch.nmi_pending) && + kvm_x86_ops->nmi_allowed(vcpu))) + return true; + + if (kvm_test_request(KVM_REQ_SMI, vcpu) || + (READ_ONCE(vcpu->arch.smi_pending) && !is_smm(vcpu))) + return true; + + if (kvm_test_request(KVM_REQ_EVENT, vcpu)) + return true; + + if (vcpu->arch.apicv_active && kvm_x86_ops->apicv_test_pi_on(vcpu)) + return true; + + return false; +} + bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) { return vcpu->arch.preempted_in_kernel; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 5c5b586..9e4c2bb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -872,6 +872,7 @@ int kvm_arch_check_processor_compat(void); int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu); int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu); #ifndef __KVM_HAVE_ARCH_VM_ALLOC /* diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index acc4324..2927895 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -444,6 +444,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) && !v->arch.power_off && !v->arch.pause); } +bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu) +{ + return kvm_arch_vcpu_runnable(vcpu); +} + bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) { return vcpu_mode_priv(vcpu); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 887f3b0..3e1a509 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2477,6 +2477,17 @@ static bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu) #endif } +static bool vcpu_runnable(struct kvm_vcpu *vcpu) +{ + if (kvm_arch_dy_runnable(vcpu)) + return true; + + if (!list_empty_careful(&vcpu->async_pf.done)) + return true; + + return false; +} + void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode) { struct kvm *kvm = me->kvm; @@ -2506,7 +2517,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode) continue; if (vcpu == me) continue; - if (swait_active(&vcpu->wq) && !kvm_arch_vcpu_runnable(vcpu)) + if (swait_active(&vcpu->wq) && !vcpu_runnable(vcpu)) continue; if (yield_to_kernel_mode && !kvm_arch_vcpu_in_kernel(vcpu)) continue; -- 2.7.4

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[patch 13/17] cgroup: kselftest: relax fs_spec checks

by akpm＠linux-foundation.org

From: Chris Down <chris(a)chrisdown.name> Subject: cgroup: kselftest: relax fs_spec checks On my laptop most memcg kselftests were being skipped because it claimed cgroup v2 hierarchy wasn't mounted, but this isn't correct. Instead, it seems current systemd HEAD mounts it with the name "cgroup2" instead of "cgroup": % grep cgroup /proc/mounts cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0 I can't think of a reason to need to check fs_spec explicitly since it's arbitrary, so we can just rely on fs_vfstype. After these changes, `make TARGETS=cgroup kselftest` actually runs the cgroup v2 tests in more cases. Link: http://lkml.kernel.org/r/20190723210737.GA487@chrisdown.name Signed-off-by: Chris Down <chris(a)chrisdown.name> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Tejun Heo <tj(a)kernel.org> Cc: Roman Gushchin <guro(a)fb.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- tools/testing/selftests/cgroup/cgroup_util.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/tools/testing/selftests/cgroup/cgroup_util.c~cgroup-kselftest-relax-fs_spec-checks +++ a/tools/testing/selftests/cgroup/cgroup_util.c @@ -191,8 +191,7 @@ int cg_find_unified_root(char *root, siz strtok(NULL, delim); strtok(NULL, delim); - if (strcmp(fs, "cgroup") == 0 && - strcmp(type, "cgroup2") == 0) { + if (strcmp(type, "cgroup2") == 0) { strncpy(root, mount, len); return 0; } _

5 years, 5 months

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[patch 11/17] mm/migrate.c: initialize pud_entry in migrate_vma()

by akpm＠linux-foundation.org

From: Ralph Campbell <rcampbell(a)nvidia.com> Subject: mm/migrate.c: initialize pud_entry in migrate_vma() When CONFIG_MIGRATE_VMA_HELPER is enabled, migrate_vma() calls migrate_vma_collect() which initializes a struct mm_walk but didn't initialize mm_walk.pud_entry. (Found by code inspection) Use a C structure initialization to make sure it is set to NULL. Link: http://lkml.kernel.org/r/20190719233225.12243-1-rcampbell@nvidia.com Fixes: 8763cb45ab967 ("mm/migrate: new memory migration helper for use with device memory") Signed-off-by: Ralph Campbell <rcampbell(a)nvidia.com> Reviewed-by: John Hubbard <jhubbard(a)nvidia.com> Reviewed-by: Andrew Morton <akpm(a)linux-foundation.org> Cc: "Jérôme Glisse" <jglisse(a)redhat.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/migrate.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) --- a/mm/migrate.c~mm-migrate-initialize-pud_entry-in-migrate_vma +++ a/mm/migrate.c @@ -2340,16 +2340,13 @@ next: static void migrate_vma_collect(struct migrate_vma *migrate) { struct mmu_notifier_range range; - struct mm_walk mm_walk; - - mm_walk.pmd_entry = migrate_vma_collect_pmd; - mm_walk.pte_entry = NULL; - mm_walk.pte_hole = migrate_vma_collect_hole; - mm_walk.hugetlb_entry = NULL; - mm_walk.test_walk = NULL; - mm_walk.vma = migrate->vma; - mm_walk.mm = migrate->vma->vm_mm; - mm_walk.private = migrate; + struct mm_walk mm_walk = { + .pmd_entry = migrate_vma_collect_pmd, + .pte_hole = migrate_vma_collect_hole, + .vma = migrate->vma, + .mm = migrate->vma->vm_mm, + .private = migrate, + }; mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, NULL, mm_walk.mm, migrate->start, _

5 years, 5 months

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[patch 08/17] ubsan: build ubsan.c more conservatively

by akpm＠linux-foundation.org

From: Arnd Bergmann <arnd(a)arndb.de> Subject: ubsan: build ubsan.c more conservatively objtool points out several conditions that it does not like, depending on the combination with other configuration options and compiler variants: stack protector: lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch()+0xbf: call to __stack_chk_fail() with UACCESS enabled lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch_v1()+0xbe: call to __stack_chk_fail() with UACCESS enabled stackleak plugin: lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch()+0x4a: call to stackleak_track_stack() with UACCESS enabled lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch_v1()+0x4a: call to stackleak_track_stack() with UACCESS enabled kasan: lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch()+0x25: call to memcpy() with UACCESS enabled lib/ubsan.o: warning: objtool: __ubsan_handle_type_mismatch_v1()+0x25: call to memcpy() with UACCESS enabled The stackleak and kasan options just need to be disabled for this file as we do for other files already. For the stack protector, we already attempt to disable it, but this fails on clang because the check is mixed with the gcc specific -fno-conserve-stack option. According to Andrey Ryabinin, that option is not even needed, dropping it here fixes the stackprotector issue. Link: http://lkml.kernel.org/r/20190722125139.1335385-1-arnd@arndb.de Link: https://lore.kernel.org/lkml/20190617123109.667090-1-arnd@arndb.de/t/ Link: https://lore.kernel.org/lkml/20190722091050.2188664-1-arnd@arndb.de/t/ Fixes: d08965a27e84 ("x86/uaccess, ubsan: Fix UBSAN vs. SMAP") Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Reviewed-by: Andrey Ryabinin <aryabinin(a)virtuozzo.com> Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Arnd Bergmann <arnd(a)arndb.de> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Dmitry Vyukov <dvyukov(a)google.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Ingo Molnar <mingo(a)kernel.org> Cc: Kees Cook <keescook(a)chromium.org> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Ard Biesheuvel <ard.biesheuvel(a)linaro.org> Cc: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- lib/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/lib/Makefile~ubsan-build-ubsanc-more-conservatively +++ a/lib/Makefile @@ -279,7 +279,8 @@ obj-$(CONFIG_UCS2_STRING) += ucs2_string obj-$(CONFIG_UBSAN) += ubsan.o UBSAN_SANITIZE_ubsan.o := n -CFLAGS_ubsan.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector) +KASAN_SANITIZE_ubsan.o := n +CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN) obj-$(CONFIG_SBITMAP) += sbitmap.o _

5 years, 5 months

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[patch 06/17] mm: compaction: avoid 100% CPU usage during compaction when a task is killed

by akpm＠linux-foundation.org

From: Mel Gorman <mgorman(a)techsingularity.net> Subject: mm: compaction: avoid 100% CPU usage during compaction when a task is killed "howaboutsynergy" reported via kernel buzilla number 204165 that compact_zone_order was consuming 100% CPU during a stress test for prolonged periods of time. Specifically the following command, which should exit in 10 seconds, was taking an excessive time to finish while the CPU was pegged at 100%. stress -m 220 --vm-bytes 1000000000 --timeout 10 Tracing indicated a pattern as follows stress-3923 [007] 519.106208: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106212: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106216: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106219: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106223: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106227: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106231: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106235: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106238: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 stress-3923 [007] 519.106242: mm_compaction_isolate_migratepages: range=(0x70bb80 ~ 0x70bb80) nr_scanned=0 nr_taken=0 Note that compaction is entered in rapid succession while scanning and isolating nothing. The problem is that when a task that is compacting receives a fatal signal, it retries indefinitely instead of exiting while making no progress as a fatal signal is pending. It's not easy to trigger this condition although enabling zswap helps on the basis that the timing is altered. A very small window has to be hit for the problem to occur (signal delivered while compacting and isolating a PFN for migration that is not aligned to SWAP_CLUSTER_MAX). This was reproduced locally -- 16G single socket system, 8G swap, 30% zswap configured, vm-bytes 22000000000 using Colin Kings stress-ng implementation from github running in a loop until the problem hits). Tracing recorded the problem occurring almost 200K times in a short window. With this patch, the problem hit 4 times but the task existed normally instead of consuming CPU. This problem has existed for some time but it was made worse by cf66f0700c8f ("mm, compaction: do not consider a need to reschedule as contention"). Before that commit, if the same condition was hit then locks would be quickly contended and compaction would exit that way. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204165 Link: http://lkml.kernel.org/r/20190718085708.GE24383@techsingularity.net Fixes: cf66f0700c8f ("mm, compaction: do not consider a need to reschedule as contention") Signed-off-by: Mel Gorman <mgorman(a)techsingularity.net> Reviewed-by: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> [5.1+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/compaction.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) --- a/mm/compaction.c~mm-compaction-avoid-100%-cpu-usage-during-compaction-when-a-task-is-killed +++ a/mm/compaction.c @@ -842,13 +842,15 @@ isolate_migratepages_block(struct compac /* * Periodically drop the lock (if held) regardless of its - * contention, to give chance to IRQs. Abort async compaction - * if contended. + * contention, to give chance to IRQs. Abort completely if + * a fatal signal is pending. */ if (!(low_pfn % SWAP_CLUSTER_MAX) && compact_unlock_should_abort(&pgdat->lru_lock, - flags, &locked, cc)) - break; + flags, &locked, cc)) { + low_pfn = 0; + goto fatal_pending; + } if (!pfn_valid_within(low_pfn)) goto isolate_fail; @@ -1060,6 +1062,7 @@ isolate_abort: trace_mm_compaction_isolate_migratepages(start_pfn, low_pfn, nr_scanned, nr_isolated); +fatal_pending: cc->total_migrate_scanned += nr_scanned; if (nr_isolated) count_compact_events(COMPACTISOLATED, nr_isolated); _

5 years, 5 months

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[patch 05/17] mm: migrate: fix reference check race between __find_get_block() and migration

by akpm＠linux-foundation.org

From: Jan Kara <jack(a)suse.cz> Subject: mm: migrate: fix reference check race between __find_get_block() and migration buffer_migrate_page_norefs() can race with bh users in the following way: CPU1 CPU2 buffer_migrate_page_norefs() buffer_migrate_lock_buffers() checks bh refs spin_unlock(&mapping->private_lock) __find_get_block() spin_lock(&mapping->private_lock) grab bh ref spin_unlock(&mapping->private_lock) move page do bh work This can result in various issues like lost updates to buffers (i.e. metadata corruption) or use after free issues for the old page. This patch closes the race by holding mapping->private_lock while the mapping is being moved to a new page. Ordinarily, a reference can be taken outside of the private_lock using the per-cpu BH LRU but the references are checked and the LRU invalidated if necessary. The private_lock is held once the references are known so the buffer lookup slow path will spin on the private_lock. Between the page lock and private_lock, it should be impossible for other references to be acquired and updates to happen during the migration. A user had reported data corruption issues on a distribution kernel with a similar page migration implementation as mainline. The data corruption could not be reproduced with this patch applied. A small number of migration-intensive tests were run and no performance problems were noted. [mgorman(a)techsingularity.net: Changelog, removed tracing] Link: http://lkml.kernel.org/r/20190718090238.GF24383@techsingularity.net Fixes: 89cb0888ca14 "mm: migrate: provide buffer_migrate_page_norefs()" Signed-off-by: Jan Kara <jack(a)suse.cz> Signed-off-by: Mel Gorman <mgorman(a)techsingularity.net> Cc: <stable(a)vger.kernel.org> [5.0+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/migrate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/migrate.c~mm-migrate-fix-reference-check-race-between-__find_get_block-and-migration +++ a/mm/migrate.c @@ -767,12 +767,12 @@ recheck_buffers: } bh = bh->b_this_page; } while (bh != head); - spin_unlock(&mapping->private_lock); if (busy) { if (invalidated) { rc = -EAGAIN; goto unlock_buffers; } + spin_unlock(&mapping->private_lock); invalidate_bh_lrus(); invalidated = true; goto recheck_buffers; @@ -805,6 +805,8 @@ recheck_buffers: rc = MIGRATEPAGE_SUCCESS; unlock_buffers: + if (check_refs) + spin_unlock(&mapping->private_lock); bh = head; do { unlock_buffer(bh); _

5 years, 5 months

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Linux-stable-mirror August 2019