- 24 7月, 2017 6 次提交
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由 Paul Mackerras 提交于
Commit f98a8bf9 ("KVM: PPC: Book3S HV: Allow KVM_PPC_ALLOCATE_HTAB ioctl() to change HPT size", 2016-12-20) changed the behaviour of the KVM_PPC_ALLOCATE_HTAB ioctl so that it now allocates a new HPT and new revmap array if there was a previously-allocated HPT of a different size from the size being requested. In this case, we need to reset the rmap arrays of the memslots, because the rmap arrays will contain references to HPTEs which are no longer valid. Worse, these references are also references to slots in the new revmap array (which parallels the HPT), and the new revmap array contains random contents, since it doesn't get zeroed on allocation. The effect of having these stale references to slots in the revmap array that contain random contents is that subsequent calls to functions such as kvmppc_add_revmap_chain will crash because they will interpret the non-zero contents of the revmap array as HPTE indexes and thus index outside of the revmap array. This leads to host crashes such as the following. [ 7072.862122] Unable to handle kernel paging request for data at address 0xd000000c250c00f8 [ 7072.862218] Faulting instruction address: 0xc0000000000e1c78 [ 7072.862233] Oops: Kernel access of bad area, sig: 11 [#1] [ 7072.862286] SMP NR_CPUS=1024 [ 7072.862286] NUMA [ 7072.862325] PowerNV [ 7072.862378] Modules linked in: kvm_hv vhost_net vhost tap xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables rpcrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm iw_cxgb3 mlx5_ib ib_core ses enclosure scsi_transport_sas ipmi_powernv ipmi_devintf ipmi_msghandler powernv_op_panel i2c_opal nfsd auth_rpcgss oid_registry [ 7072.863085] nfs_acl lockd grace sunrpc kvm_pr kvm xfs libcrc32c scsi_dh_alua dm_service_time radeon lpfc nvme_fc nvme_fabrics nvme_core scsi_transport_fc i2c_algo_bit tg3 drm_kms_helper ptp pps_core syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm dm_multipath i2c_core cxgb3 mlx5_core mdio [last unloaded: kvm_hv] [ 7072.863381] CPU: 72 PID: 56929 Comm: qemu-system-ppc Not tainted 4.12.0-kvm+ #59 [ 7072.863457] task: c000000fe29e7600 task.stack: c000001e3ffec000 [ 7072.863520] NIP: c0000000000e1c78 LR: c0000000000e2e3c CTR: c0000000000e25f0 [ 7072.863596] REGS: c000001e3ffef560 TRAP: 0300 Not tainted (4.12.0-kvm+) [ 7072.863658] MSR: 9000000100009033 <SF,HV,EE,ME,IR,DR,RI,LE,TM[E]> [ 7072.863667] CR: 44082882 XER: 20000000 [ 7072.863767] CFAR: c0000000000e2e38 DAR: d000000c250c00f8 DSISR: 42000000 SOFTE: 1 GPR00: c0000000000e2e3c c000001e3ffef7e0 c000000001407d00 d000000c250c00f0 GPR04: d00000006509fb70 d00000000b3d2048 0000000003ffdfb7 0000000000000000 GPR08: 00000001007fdfb7 00000000c000000f d0000000250c0000 000000000070f7bf GPR12: 0000000000000008 c00000000fdad000 0000000010879478 00000000105a0d78 GPR16: 00007ffaf4080000 0000000000001190 0000000000000000 0000000000010000 GPR20: 4001ffffff000415 d00000006509fb70 0000000004091190 0000000ee1881190 GPR24: 0000000003ffdfb7 0000000003ffdfb7 00000000007fdfb7 c000000f5c958000 GPR28: d00000002d09fb70 0000000003ffdfb7 d00000006509fb70 d00000000b3d2048 [ 7072.864439] NIP [c0000000000e1c78] kvmppc_add_revmap_chain+0x88/0x130 [ 7072.864503] LR [c0000000000e2e3c] kvmppc_do_h_enter+0x84c/0x9e0 [ 7072.864566] Call Trace: [ 7072.864594] [c000001e3ffef7e0] [c000001e3ffef830] 0xc000001e3ffef830 (unreliable) [ 7072.864671] [c000001e3ffef830] [c0000000000e2e3c] kvmppc_do_h_enter+0x84c/0x9e0 [ 7072.864751] [c000001e3ffef920] [d00000000b38d878] kvmppc_map_vrma+0x168/0x200 [kvm_hv] [ 7072.864831] [c000001e3ffef9e0] [d00000000b38a684] kvmppc_vcpu_run_hv+0x1284/0x1300 [kvm_hv] [ 7072.864914] [c000001e3ffefb30] [d00000000f465664] kvmppc_vcpu_run+0x44/0x60 [kvm] [ 7072.865008] [c000001e3ffefb60] [d00000000f461864] kvm_arch_vcpu_ioctl_run+0x114/0x290 [kvm] [ 7072.865152] [c000001e3ffefbe0] [d00000000f453c98] kvm_vcpu_ioctl+0x598/0x7a0 [kvm] [ 7072.865292] [c000001e3ffefd40] [c000000000389328] do_vfs_ioctl+0xd8/0x8c0 [ 7072.865410] [c000001e3ffefde0] [c000000000389be4] SyS_ioctl+0xd4/0x130 [ 7072.865526] [c000001e3ffefe30] [c00000000000b760] system_call+0x58/0x6c [ 7072.865644] Instruction dump: [ 7072.865715] e95b2110 793a0020 7b4926e4 7f8a4a14 409e0098 807c000c 786326e4 7c6a1a14 [ 7072.865857] 935e0008 7bbd0020 813c000c 913e000c <93a30008> 93bc000c 48000038 60000000 [ 7072.866001] ---[ end trace 627b6e4bf8080edc ]--- Note that to trigger this, it is necessary to use a recent upstream QEMU (or other userspace that resizes the HPT at CAS time), specify a maximum memory size substantially larger than the current memory size, and boot a guest kernel that does not support HPT resizing. This fixes the problem by resetting the rmap arrays when the old HPT is freed. Fixes: f98a8bf9 ("KVM: PPC: Book3S HV: Allow KVM_PPC_ALLOCATE_HTAB ioctl() to change HPT size") Cc: stable@vger.kernel.org # v4.11+ Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NPaul Mackerras <paulus@ozlabs.org>
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由 Paul Mackerras 提交于
Commit 46a704f8 ("KVM: PPC: Book3S HV: Preserve userspace HTM state properly", 2017-06-15) added code to read transactional memory (TM) registers but forgot to enable TM before doing so. The result is that if userspace does have live values in the TM registers, a KVM_RUN ioctl will cause a host kernel crash like this: [ 181.328511] Unrecoverable TM Unavailable Exception f60 at d00000001e7d9980 [ 181.328605] Oops: Unrecoverable TM Unavailable Exception, sig: 6 [#1] [ 181.328613] SMP NR_CPUS=2048 [ 181.328613] NUMA [ 181.328618] PowerNV [ 181.328646] Modules linked in: vhost_net vhost tap nfs_layout_nfsv41_files rpcsec_gss_krb5 nfsv4 dns_resolver nfs +fscache xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat +nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun ebtable_filter ebtables +ip6table_filter ip6_tables iptable_filter bridge stp llc kvm_hv kvm nfsd ses enclosure scsi_transport_sas ghash_generic +auth_rpcgss gf128mul xts sg ctr nfs_acl lockd vmx_crypto shpchp ipmi_powernv i2c_opal grace ipmi_devintf i2c_core +powernv_rng sunrpc ipmi_msghandler ibmpowernv uio_pdrv_genirq uio leds_powernv powernv_op_panel ip_tables xfs sd_mod +lpfc ipr bnx2x libata mdio ptp pps_core scsi_transport_fc libcrc32c dm_mirror dm_region_hash dm_log dm_mod [ 181.329278] CPU: 40 PID: 9926 Comm: CPU 0/KVM Not tainted 4.12.0+ #1 [ 181.329337] task: c000003fc6980000 task.stack: c000003fe4d80000 [ 181.329396] NIP: d00000001e7d9980 LR: d00000001e77381c CTR: d00000001e7d98f0 [ 181.329465] REGS: c000003fe4d837e0 TRAP: 0f60 Not tainted (4.12.0+) [ 181.329523] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> [ 181.329527] CR: 24022448 XER: 00000000 [ 181.329608] CFAR: d00000001e773818 SOFTE: 1 [ 181.329608] GPR00: d00000001e77381c c000003fe4d83a60 d00000001e7ef410 c000003fdcfe0000 [ 181.329608] GPR04: c000003fe4f00000 0000000000000000 0000000000000000 c000003fd7954800 [ 181.329608] GPR08: 0000000000000001 c000003fc6980000 0000000000000000 d00000001e7e2880 [ 181.329608] GPR12: d00000001e7d98f0 c000000007b19000 00000001295220e0 00007fffc0ce2090 [ 181.329608] GPR16: 0000010011886608 00007fff8c89f260 0000000000000001 00007fff8c080028 [ 181.329608] GPR20: 0000000000000000 00000100118500a6 0000010011850000 0000010011850000 [ 181.329608] GPR24: 00007fffc0ce1b48 0000010011850000 00000000d673b901 0000000000000000 [ 181.329608] GPR28: 0000000000000000 c000003fdcfe0000 c000003fdcfe0000 c000003fe4f00000 [ 181.330199] NIP [d00000001e7d9980] kvmppc_vcpu_run_hv+0x90/0x6b0 [kvm_hv] [ 181.330264] LR [d00000001e77381c] kvmppc_vcpu_run+0x2c/0x40 [kvm] [ 181.330322] Call Trace: [ 181.330351] [c000003fe4d83a60] [d00000001e773478] kvmppc_set_one_reg+0x48/0x340 [kvm] (unreliable) [ 181.330437] [c000003fe4d83b30] [d00000001e77381c] kvmppc_vcpu_run+0x2c/0x40 [kvm] [ 181.330513] [c000003fe4d83b50] [d00000001e7700b4] kvm_arch_vcpu_ioctl_run+0x114/0x2a0 [kvm] [ 181.330586] [c000003fe4d83bd0] [d00000001e7642f8] kvm_vcpu_ioctl+0x598/0x7a0 [kvm] [ 181.330658] [c000003fe4d83d40] [c0000000003451b8] do_vfs_ioctl+0xc8/0x8b0 [ 181.330717] [c000003fe4d83de0] [c000000000345a64] SyS_ioctl+0xc4/0x120 [ 181.330776] [c000003fe4d83e30] [c00000000000b004] system_call+0x58/0x6c [ 181.330833] Instruction dump: [ 181.330869] e92d0260 e9290b50 e9290108 792807e3 41820058 e92d0260 e9290b50 e9290108 [ 181.330941] 792ae8a4 794a1f87 408204f4 e92d0260 <7d4022a6> f9490ff0 e92d0260 7d4122a6 [ 181.331013] ---[ end trace 6f6ddeb4bfe92a92 ]--- The fix is just to turn on the TM bit in the MSR before accessing the registers. Cc: stable@vger.kernel.org # v3.14+ Fixes: 46a704f8 ("KVM: PPC: Book3S HV: Preserve userspace HTM state properly") Reported-by: NJan Stancek <jstancek@redhat.com> Tested-by: NJan Stancek <jstancek@redhat.com> Signed-off-by: NPaul Mackerras <paulus@ozlabs.org>
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由 Linus Torvalds 提交于
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由 Linus Torvalds 提交于
This adds a perl script to actually parse the MAINTAINERS file, clean up some whitespace in it, warn about errors in it, and then properly sort the end result. My perl-fu is atrocious, so the script has basically been created by randomly putting various characters in a pile, mixing them around, and then looking it the end result does anything interesting when used as a perl script. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
Prepping for scripting the MAINTAINERS file cleanup (and possible split) showed a couple of cases where the headers for a couple of entries were bogus. There's a few different kinds of bogosities: - the X-GENE SOC EDAC case was confused and split over two lines - there were four entries for "GREYBUS PROTOCOLS DRIVERS" that were all different things. - the NOKIA N900 CAMERA SUPPORT" was duplicated all of which were more obvious when you started doing associative arrays in perl to track these things by the header (so that we can alphabetize this thing properly, and so that we might split it up by the data too). Cc: Joe Perches <joe@perches.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip由 Linus Torvalds 提交于
Pull xen fixes from Juergen Gross: "Some fixes and cleanups for running under Xen" * tag 'for-linus-4.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/balloon: don't online new memory initially xen/x86: fix cpu hotplug xen/grant-table: log the lack of grants xen/x86: Don't BUG on CPU0 offlining
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- 23 7月, 2017 6 次提交
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由 Juergen Gross 提交于
When setting up the Xenstore watch for the memory target size the new watch will fire at once. Don't try to reach the configured target size by onlining new memory in this case, as the current memory size will be smaller in almost all cases due to e.g. BIOS reserved pages. Onlining new memory will lead to more problems e.g. undesired conflicts with NVMe devices meant to be operated as block devices. Instead remember the difference between target size and current size when the watch fires for the first time and apply it to any further size changes, too. In order to avoid races between balloon.c and xen-balloon.c init calls do the xen-balloon.c initialization from balloon.c. Signed-off-by: NJuergen Gross <jgross@suse.com> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Juergen Gross 提交于
Commit dc6416f1 ("xen/x86: Call cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()") introduced an error leading to a stack overflow of the idle task when a cpu was brought offline/online many times: by calling cpu_startup_entry() instead of returning at the end of xen_play_dead() do_idle() would be entered again and again. Don't use cpu_startup_entry(), but cpuhp_online_idle() instead allowing to return from xen_play_dead(). Cc: <stable@vger.kernel.org> # 4.12 Signed-off-by: NJuergen Gross <jgross@suse.com> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Wengang Wang 提交于
log a message when we enter this situation: 1) we already allocated the max number of available grants from hypervisor and 2) we still need more (but the request fails because of 1)). Sometimes the lack of grants causes IO hangs in xen_blkfront devices. Adding this log would help debuging. Signed-off-by: NWengang Wang <wen.gang.wang@oracle.com> Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: NJunxiao Bi <junxiao.bi@oracle.com> Reviewed-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Vitaly Kuznetsov 提交于
CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a leftover from ancient times when CPU0 hotplug was impossible, it works just fine for HVM. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Acked-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Linus Torvalds 提交于
Merge tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fix from Guenter Roeck: "Avoid buffer overruns in applesmc driver" * tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (applesmc) Avoid buffer overruns
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty由 Linus Torvalds 提交于
Pull tty/serial fixes from Greg KH: "Here are some small tty and serial driver fixes for 4.13-rc2. Nothing huge at all, a revert of a patch that turned out to break things, a fix up for a new tty ioctl we added in 4.13-rc1 to get the uapi definition correct, and a few minor serial driver fixes for reported issues. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: Fix TIOCGPTPEER ioctl definition tty: hide unused pty_get_peer function tty: serial: lpuart: Fix the logic for detecting the 32-bit type UART serial: imx: Prevent TX buffer PIO write when a DMA has been started Revert "serial: imx-serial - move DMA buffer configuration to DT" serial: sh-sci: Uninitialized variables in sysfs files serial: st-asc: Potential error pointer dereference
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- 22 7月, 2017 20 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc由 Linus Torvalds 提交于
Pull char/misc driver fixes from Greg KH: "Here are some small char and misc driver fixes for 4.13-rc2. All fix reported problems with 4.13-rc1 or older kernels (like the binder fixes). Full details in the shortlog. All have been in linux-next with no reported issues" * tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: w1: omap-hdq: fix error return code in omap_hdq_probe() regmap: regmap-w1: Fix build troubles w1: Fix slave count on 1-Wire bus (resend) mux: mux-core: unregister mux_class in mux_exit() mux: remove the Kconfig question for the subsystem nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse drivers/fsi: fix fsi_slave_mode prototype fsi: core: register with postcore_initcall thunderbolt: Correct access permissions for active NVM contents vmbus: re-enable channel tasklet spmi: pmic-arb: Always allocate ppid_to_apid table MAINTAINERS: Add entry for SPMI subsystem spmi: Include OF based modalias in device uevent binder: Use wake up hint for synchronous transactions. binder: use group leader instead of open thread Revert "android: binder: Sanity check at binder ioctl"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB fixes from Greg KH: "Here are some small USB fixes for 4.13-rc2. The usual batch, gadget fixes for reported issues, as well as xhci fixes, and a small random collection of other fixes for reported issues. All have been in linux-next with no reported issues" * tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits) xhci: fix memleak in xhci_run() usb: xhci: fix spinlock recursion for USB2 test mode xhci: fix 20000ms port resume timeout usb: xhci: Issue stop EP command only when the EP state is running xhci: Bad Ethernet performance plugged in ASM1042A host xhci: Fix NULL pointer dereference when cleaning up streams for removed host usb: renesas_usbhs: gadget: disable all eps when the driver stops usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL usb: gadget: udc: renesas_usb3: protect usb3_ep->started in usb3_start_pipen() usb: gadget: udc: renesas_usb3: fix zlp transfer by the dmac usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd() usb: gadget: f_uac2: endianness fixes. usb: gadget: f_uac1: endianness fixes. include: usb: audio: specify exact endiannes of descriptors usb: gadget: udc: start_udc() can be static usb: dwc2: gadget: On USB RESET reset device address to zero usb: storage: return on error to avoid a null pointer dereference usb: typec: include linux/device.h in ucsi.h USB: cdc-acm: add device-id for quirky printer usb: dwc3: gadget: only unmap requests from DMA if mapped ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging由 Linus Torvalds 提交于
Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for reported issues for 4.13-rc2. Also in here is a new driver, the virtualbox DRM driver. It's stand-alone and got acks from the DRM developers to go in through this tree. It's a new thing, but it should be fine for this point in the rc cycle due to it being independent. All of this has been in linux-next for a while with no reported issues" * tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8188eu: add TL-WN722N v2 support staging: speakup: safely register and unregister ldisc staging: speakup: add functions to register and unregister ldisc staging: speakup: safely close tty staging: sm750fb: avoid conflicting vesafb staging: lustre: ko2iblnd: check copy_from_iter/copy_to_iter return code staging: vboxvideo: Add vboxvideo to drivers/staging staging: sm750fb: fixed a assignment typo staging: rtl8188eu: memory leak in rtw_free_cmd_obj() staging: vchiq_arm: fix error codes in probe staging: comedi: ni_mio_common: fix AO timer off-by-one regression
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由 Randy Dunlap 提交于
Fix major alphabetic errors. No attempt to fix items that all begin with the same word (like ARM, BROADCOM, DRM, EDAC, FREESCALE, INTEL, OMAP, PCI, SAMSUNG, TI, USB, etc.). (diffstat +/- is different by one line because TI KEYSTONE MULTICORE had 2 blank lines after it.) Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Acked-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.linux-nfs.org/projects/anna/linux-nfs由 Linus Torvalds 提交于
Pull NFS client bugfixes from Anna Schumaker: "Stable bugfix: - Fix error reporting regression Bugfixes: - Fix setting filelayout ds address race - Fix subtle access bug when using ACLs - Fix setting mnt3_counts array size - Fix a couple of pNFS commit races" * tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFS/filelayout: Fix racy setting of fl->dsaddr in filelayout_check_deviceid() NFS: Be more careful about mapping file permissions NFS: Store the raw NFS access mask in the inode's access cache NFSv3: Convert nfs3_proc_access() to use nfs_access_set_mask() NFS: Refactor NFS access to kernel access mask calculation net/sunrpc/xprt_sock: fix regression in connection error reporting. nfs: count correct array for mnt3_counts array size Revert commit 722f0b89 ("pNFS: Don't send COMMITs to the DSes if...") pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit() NFS: Fix another COMMIT race in pNFS NFS: Fix a COMMIT race in pNFS mount: copy the port field into the cloned nfs_server structure. NFS: Don't run wake_up_bit() when nobody is waiting... nfs: add export operations
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs由 Linus Torvalds 提交于
Pull overlayfs fixes from Miklos Szeredi: "This fixes a crash with SELinux and several other old and new bugs" * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: check for bad and whiteout index on lookup ovl: do not cleanup directory and whiteout index entries ovl: fix xattr get and set with selinux ovl: remove unneeded check for IS_ERR() ovl: fix origin verification of index dir ovl: mark parent impure on ovl_link() ovl: fix random return value on mount
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block fixes from Jens Axboe: "A small set of fixes for -rc2 - two fixes for BFQ, documentation and code, and a removal of an unused variable in nbd. Outside of that, a small collection of fixes from the usual crew on the nvme side" * 'for-linus' of git://git.kernel.dk/linux-block: nvmet: don't report 0-bytes in serial number nvmet: preserve controller serial number between reboots nvmet: Move serial number from controller to subsystem nvmet: prefix version configfs file with attr nvme-pci: Fix an error handling path in 'nvme_probe()' nvme-pci: Remove nvme_setup_prps BUG_ON nvme-pci: add another device ID with stripe quirk nvmet-fc: fix byte swapping in nvmet_fc_ls_create_association nvme: fix byte swapping in the streams code nbd: kill unused ret in recv_work bfq: dispatch request to prevent queue stalling after the request completion bfq: fix typos in comments about B-WF2Q+ algorithm
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma由 Linus Torvalds 提交于
Pull more rdma fixes from Doug Ledford: "As per my previous pull request, there were two drivers that each had a rather large number of legitimate fixes still to be sent. As it turned out, I also missed a reasonably large set of fixes from one person across the stack that are all important fixes. All in all, the bnxt_re, i40iw, and Dan Carpenter are 3/4 to 2/3rds of this pull request. There were some other random fixes that I didn't send in the last pull request that I added to this one. This catches the rdma stack up to the fixes from up to about the beginning of this week. Any more fixes I'll wait and batch up later in the -rc cycle. This will give us a good base to start with for basing a for-next branch on -rc2. Summary: - i40iw fixes - bnxt_re fixes - Dan Carpenter bugfixes across stack - ten more random fixes, no more than two from any one person" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) RDMA/core: Initialize port_num in qp_attr RDMA/uverbs: Fix the check for port number IB/cma: Fix reference count leak when no ipv4 addresses are set RDMA/iser: don't send an rkey if all data is written as immadiate-data rxe: fix broken receive queue draining RDMA/qedr: Prevent memory overrun in verbs' user responses iw_cxgb4: don't use WR keys/addrs for 0 byte reads IB/mlx4: Fix CM REQ retries in paravirt mode IB/rdmavt: Setting of QP timeout can overflow jiffies computation IB/core: Fix sparse warnings RDMA/bnxt_re: Fix the value reported for local ack delay RDMA/bnxt_re: Report MISSED_EVENTS in req_notify_cq RDMA/bnxt_re: Fix return value of poll routine RDMA/bnxt_re: Enable atomics only if host bios supports RDMA/bnxt_re: Specify RDMA component when allocating stats context RDMA/bnxt_re: Fixed the max_rd_atomic support for initiator and destination QP RDMA/bnxt_re: Report supported value to IB stack in query_device RDMA/bnxt_re: Do not free the ctx_tbl entry if delete GID fails RDMA/bnxt_re: Fix WQE Size posted to HW to prevent it from throwing error RDMA/bnxt_re: Free doorbell page index (DPI) during dealloc ucontext ...
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm fixes from Dave Airlie: "A bunch of fixes for rc2: two imx regressions, vc4 fix, dma-buf fix, some displayport mst fixes, and an amdkfd fix. Nothing too crazy, I assume we just haven't see much rc1 testing yet" * tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux: drm/mst: Avoid processing partially received up/down message transactions drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req() drm/mst: Fix error handling during MST sideband message reception drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure drm/imx: fix typo in ipu_plane_formats[] drm/vc4: Fix VBLANK handling in crtc->enable() path dma-buf/fence: Avoid use of uninitialised timestamp drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec drm/radeon: Remove initialization of shared_resources.num_mec drm/amdkfd: Remove unused references to shared_resources.num_mec drm/amdgpu: Fix KFD oversubscription by tracking queues correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace由 Linus Torvalds 提交于
Pull tracing fixes from Steven Rostedt: "Three minor updates - Use the new GFP_RETRY_MAYFAIL to be more aggressive in allocating memory for the ring buffer without causing OOMs - Fix a memory leak in adding and removing instances - Add __rcu annotation to be able to debug RCU usage of function tracing a bit better" * tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: trace: fix the errors caused by incompatible type of RCU variables tracing: Fix kmemleak in instance_rmdir tracing/ring_buffer: Try harder to allocate
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fixes from Radim Krčmář: "A bunch of small fixes for x86" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: x86: hyperv: avoid livelock in oneshot SynIC timers KVM: VMX: Fix invalid guest state detection after task-switch emulation x86: add MULTIUSER dependency for KVM KVM: nVMX: Disallow VM-entry in MOV-SS shadow KVM: nVMX: track NMI blocking state separately for each VMCS KVM: x86: masking out upper bits
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux由 Linus Torvalds 提交于
Pull powerpc fixes from Michael Ellerman: "A handful of fixes, mostly for new code: - some reworking of the new STRICT_KERNEL_RWX support to make sure we also remove executable permission from __init memory before it's freed. - a fix to some recent optimisations to the hypercall entry where we were clobbering r12, this was breaking nested guests (PR KVM). - a fix for the recent patch to opal_configure_cores(). This could break booting on bare metal Power8 boxes if the kernel was built without CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG. - .. and finally a workaround for spurious PMU interrupts on Power9 DD2. Thanks to: Nicholas Piggin, Anton Blanchard, Balbir Singh" * tag 'powerpc-4.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/mm: Mark __init memory no-execute when STRICT_KERNEL_RWX=y powerpc/mm/hash: Refactor hash__mark_rodata_ro() powerpc/mm/radix: Refactor radix__mark_rodata_ro() powerpc/64s: Fix hypercall entry clobbering r12 input powerpc/perf: Avoid spurious PMU interrupts after idle powerpc/powernv: Fix boot on Power8 bare metal due to opal_configure_cores()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull x86 fixes from Ingo Molnar: "Half of the fixes are for various build time warnings triggered by randconfig builds. Most (but not all...) were harmless. There's also: - ACPI boundary condition fixes - UV platform fixes - defconfig updates - an AMD K6 CPU init fix - a %pOF printk format related preparatory change - .. and a warning fix related to the tlb/PCID changes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/devicetree: Convert to using %pOF instead of ->full_name x86/platform/uv/BAU: Disable BAU on single hub configurations x86/platform/intel-mid: Fix a format string overflow warning x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG x86/build: Silence the build with "make -s" x86/io: Add "memory" clobber to insb/insw/insl/outsb/outsw/outsl x86/fpu/math-emu: Avoid bogus -Wint-in-bool-context warning x86/fpu/math-emu: Fix possible uninitialized variable use perf/x86: Shut up false-positive -Wmaybe-uninitialized warning x86/defconfig: Remove stale, old Kconfig options x86/ioapic: Pass the correct data to unmask_ioapic_irq() x86/acpi: Prevent out of bound access caused by broken ACPI tables x86/mm, KVM: Fix warning when !CONFIG_PREEMPT_COUNT x86/platform/uv/BAU: Fix congested_response_us not taking effect x86/cpu: Use indirect call to measure performance in init_amd_k6()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull timer fix from Ingo Molnar: "A timer_irq_init() clocksource API robustness fix" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull scheduler fixes from Ingo Molnar: "A cputime fix and code comments/organization fix to the deadline scheduler" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/deadline: Fix confusing comments about selection of top pi-waiter sched/cputime: Don't use smp_processor_id() in preemptible context
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf fixes from Ingo Molnar: "Two hw-enablement patches, two race fixes, three fixes for regressions of semantics, plus a number of tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Add proper condition to run sched_task callbacks perf/core: Fix locking for children siblings group read perf/core: Fix scheduling regression of pinned groups perf/x86/intel: Fix debug_store reset field for freq events perf/x86/intel: Add Goldmont Plus CPU PMU support perf/x86/intel: Enable C-state residency events for Apollo Lake perf symbols: Accept zero as the kernel base address Revert "perf/core: Drop kernel samples even though :u is specified" perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target perf evsel: State in the default event name if attr.exclude_kernel is set perf evsel: Fix attr.exclude_kernel setting for default cycles:p
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull locking fixlet from Ingo Molnar: "Remove an unnecessary priority adjustment in the rtmutex code" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rtmutex: Remove unnecessary priority adjustment
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由 Trond Myklebust 提交于
We must set fl->dsaddr once, and once only, even if there are multiple processes calling filelayout_check_deviceid() for the same layout segment. Reported-by: NOlga Kornievskaia <kolga@netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull irq fixes from Ingo Molnar: "A resume_irq() fix, plus a number of static declaration fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/digicolor: Drop unnecessary static irqchip/mips-cpu: Drop unnecessary static irqchip/gic/realview: Drop unnecessary static irqchip/mips-gic: Remove population of irq domain names genirq/PM: Properly pretend disabled state when force resuming interrupts
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull core fixes from Ingo Molnar: "A fix to WARN_ON_ONCE() done by modules, plus a MAINTAINERS update" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debug: Fix WARN_ON_ONCE() for modules MAINTAINERS: Update the PTRACE entry
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- 21 7月, 2017 8 次提交
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由 Trond Myklebust 提交于
When mapping a directory, we want the MAY_WRITE permissions to reflect whether or not we have permission to modify, add and delete the directory entries. MAY_EXEC must map to lookup permissions. On the other hand, for files, we want MAY_WRITE to reflect a permission to modify and extend the file. Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 Trond Myklebust 提交于
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 Trond Myklebust 提交于
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 Trond Myklebust 提交于
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 NeilBrown 提交于
Commit 3d476263 ("tcp: remove poll() flakes when receiving RST") in v4.12 changed the order in which ->sk_state_change() and ->sk_error_report() are called when a socket is shut down - sk_state_change() is now called first. This causes xs_tcp_state_change() -> xs_sock_mark_closed() -> xprt_disconnect_done() to wake all pending tasked with -EAGAIN. When the ->sk_error_report() callback arrives, it is too late to pass the error on, and it is lost. As easy way to demonstrate the problem caused is to try to start rpc.nfsd while rcpbind isn't running. nfsd will attempt a tcp connection to rpcbind. A ECONNREFUSED error is returned, but sunrpc code loses the error and keeps retrying. If it saw the ECONNREFUSED, it would abort. To fix this, handle the sk->sk_err in the TCP_CLOSE branch of xs_tcp_state_change(). Fixes: 3d476263 ("tcp: remove poll() flakes when receiving RST") Cc: stable@vger.kernel.org (v4.12) Signed-off-by: NNeilBrown <neilb@suse.com> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 Eryu Guan 提交于
Array size of mnt3_counts should be the size of array mnt3_procedures, not mnt_procedures, though they're same in size right now. Found this by code inspection. Fixes: 1c5876dd ("sunrpc: move p_count out of struct rpc_procinfo") Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NEryu Guan <eguan@redhat.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
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由 Rob Herring 提交于
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each device node. Signed-off-by: NRob Herring <robh@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devicetree@vger.kernel.org Link: http://lkml.kernel.org/r/20170718214339.7774-7-robh@kernel.org [ Clarify the error message while at it, as 'node' is ambiguous. ] Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Jiri Olsa 提交于
We have 2 functions using the same sched_task callback: - PEBS drain for free running counters - LBR save/store Both of them are called from intel_pmu_sched_task() and either of them can be unwillingly triggered when the other one is configured to run. Let's say there's PEBS drain configured in sched_task callback for the event, but in the callback itself (intel_pmu_sched_task()) we will also run the code for LBR save/restore, which we did not ask for, but the code in intel_pmu_sched_task() does not check for that. This can lead to extra cycles in some perf monitoring, like when we monitor PEBS event without LBR data. # perf record --no-timestamp -c 10000 -e cycles:p ./perf bench sched pipe -l 1000000 (We need PEBS, non freq/non timestamp event to enable the sched_task callback) The perf stat of cycles and msr:write_msr for above command before the change: ... Performance counter stats for './perf record --no-timestamp -c 10000 -e cycles:p \ ./perf bench sched pipe -l 1000000' (5 runs): 18,519,557,441 cycles:k 91,195,527 msr:write_msr 29.334476406 seconds time elapsed And after the change: ... Performance counter stats for './perf record --no-timestamp -c 10000 -e cycles:p \ ./perf bench sched pipe -l 1000000' (5 runs): 18,704,973,540 cycles:k 27,184,720 msr:write_msr 16.977875900 seconds time elapsed There's no affect on cycles:k because the sched_task happens with events switched off, however the msr:write_msr tracepoint counter together with almost 50% of time speedup show the improvement. Monitoring LBR event and having extra PEBS drain processing in sched_task callback showed just a little speedup, because the drain function does not do much extra work in case there is no PEBS data. Adding conditions to recognize the configured work that needs to be done in the x86_pmu's sched_task callback. Suggested-by: NPeter Zijlstra <peterz@infradead.org> Signed-off-by: NJiri Olsa <jolsa@kernel.org> Acked-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170719075247.GA27506@kravaSigned-off-by: NIngo Molnar <mingo@kernel.org>
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