Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1341320 > unrolled thread

[PATCH 4.4 000/137] 4.4.3-stable review

Back to article view | Back to linux.kernel

Contents

  [PATCH 4.4 000/137] 4.4.3-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:10 +0100
    [PATCH 4.4 023/137] Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()" Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:10 +0100
    [PATCH 4.4 026/137] Btrfs: fix page reading in extent_same ioctl leading to csum errors Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:10 +0100
    [PATCH 4.4 022/137] Btrfs: fix fitrim discarding device area reserved for boot loaders use Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:10 +0100
    [PATCH 4.4 092/137] libnvdimm: fix namespace object confusion in is_uuid_busy() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 104/137] iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 128/137] libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 068/137] powerpc/ioda: Set "read" permission when "write" is set Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 119/137] intel_scu_ipcutil: underflow in scu_reg_access() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 126/137] ovl: root: copy attr Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 108/137] dma-debug: switch check from _text to _stext Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 095/137] mm: fix regression in remap_file_pages() emulation Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 122/137] futex: Drop refcount if requeue_pi() acquired the rtmutex Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 004/137] x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 008/137] ALSA: seq: Fix leak of pool buffer at concurrent writes Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 123/137] ovl: allow zero size xattr Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 117/137] dump_stack: avoid potential deadlocks Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 129/137] xfs: inode recovery readahead can race with inode buffer creation Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 127/137] ovl: setattr: check permissions before copy-up Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 003/137] x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 125/137] ovl: check dentry positiveness in ovl_cleanup_whiteouts() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 118/137] mm,thp: khugepaged: call pte flush at the time of collapse Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 006/137] ALSA: hda - Cancel probe work instead of flush at remove Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 121/137] devm_memremap_release(): fix memremapd addr handling Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 011/137] phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 124/137] ovl: use a minimal buffer in ovl_copy_xattr Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 109/137] scripts/bloat-o-meter: fix python3 syntax error Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 120/137] ipc/shm: handle removed segments gracefully in shm_mmap() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 007/137] ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 103/137] iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 059/137] udf: limit the maximum number of indirect extents in a row Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 009/137] ALSA: seq: Fix double port list deletion Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:20 +0100
    [PATCH 4.4 130/137] Revert "xfs: clear PF_NOFREEZE for xfsaild kthread" Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 107/137] m32r: fix m32104ut_defconfig build fail Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 106/137] xhci: Fix list corruption in urb dequeue at host removal Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 116/137] radix-tree: fix oops after radix_tree_iter_retry Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 067/137] powerpc/powernv: Fix stale PE primary bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 137/137] modules: fix modparam async_probe request Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 065/137] powerpc: Fix dedotify for binutils >= 2.26 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 136/137] module: wrapper for symbol name. Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 110/137] fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 066/137] powerpc/eeh: Fix stale cached primary bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 094/137] mm: replace vma_lock_anon_vma with anon_vma_lock_read/write Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 105/137] Revert "xhci: dont finish a TD if we get a short-transfer event mid TD" Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 134/137] posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 093/137] mm: fix mlock accouting Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 101/137] iommu/amd: Correct the wrong setting of alias DTE in do_attach Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 112/137] memcg: only free spare array when readers are done Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 098/137] string_helpers: fix precision loss for some inputs Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 113/137] MAINTAINERS: return arch/sh to maintained state, with new maintainers Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 114/137] radix-tree: fix race in gang lookup Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 063/137] powerpc/eeh: Fix PE location code Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 099/137] Input: vmmouse - fix absolute device registration Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 115/137] drivers/hwspinlock: fix race between radix tree insertion and lookup Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 064/137] powerpc: Simplify module TOC handling Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 100/137] iommu/vt-d: Dont skip PCI devices when disabling IOTLB Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 111/137] numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:30 +0100
    [PATCH 4.4 086/137] arm64: dma-mapping: fix handling of devices registered before arch_initcall Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 132/137] prctl: take mmap sem for writing to protect against others Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 071/137] ARM: 8519/1: ICST: try other dividends than 1 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 062/137] SUNRPC: Fixup socket wait for memory Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 081/137] ARM: OMAP2+: Fix wait_dll_lock_timed for rodata Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 090/137] perf kvm record/report: unprocessable sample error while recording/reporting guest data Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 096/137] Input: elantech - mark protocols v2 and v3 as semi-mt Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 135/137] itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 072/137] ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 060/137] udf: Prevent buffer overrun with multi-byte characters Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 087/137] KVM: arm/arm64: Fix reference to uninitialised VGIC Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 061/137] udf: Check output buffer length when converting name to CS0 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 051/137] cifs: Ratelimit kernel log messages Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 080/137] ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 085/137] ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 075/137] ARM: dts: Fix omap5 PMIC control lines for RTC writes Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 069/137] ARM: mvebu: remove duplicated regulator definition in Armada 388 GP Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 054/137] cifs: fix erroneous return value Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 078/137] ARM: dts: at91: sama5d4: fix instance id of DBGU Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 133/137] timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 083/137] ARM: OMAP2+: Fix l2dis_3630 for rodata Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 088/137] KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 089/137] KVM: PPC: Fix ONE_REG AltiVec support Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 073/137] ARM: nomadik: fix up SD/MMC DT settings Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 077/137] ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 076/137] ARM: dts: omap5-board-common: enable rtc and charging of backup battery Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 084/137] ARM: OMAP2+: Fix save_secure_ram_context for rodata Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 047/137] iio: dac: mcp4725: set iio name property in sysfs Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 074/137] ARM: dts: Fix wl12xx missing clocks that cause hangs Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 082/137] ARM: OMAP2+: Fix l2_inv_api_params for rodata Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 091/137] mm: soft-offline: check return value in second __get_any_page() call Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 079/137] ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 131/137] xfs: log mount failures dont wait for buffers to be released Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 034/137] klist: fix starting point removed bug in klist iterators Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:40 +0100
    [PATCH 4.4 017/137] serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 043/137] iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer. Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 019/137] ext4: fix potential integer overflow Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 048/137] iio: light: acpi-als: Report data as processed Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 030/137] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 035/137] scsi: add Synology to 1024 sector blacklist Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 010/137] phy: twl4030-usb: Relase usb phy on unload Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 057/137] nfs: Fix race in __update_open_stateid() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 049/137] iio: pressure: mpl115: fix temperature offset sign Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 013/137] pty: fix possible use after free of tty->driver_data Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 058/137] pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 033/137] tracepoints: Do not trace when cpu is offline Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 040/137] SCSI: Add Marvell Console to VPD blacklist Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 039/137] scsi_dh_rdac: always retry MODE SELECT on command lock violation Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 031/137] perf tools: tracepoint_error() can receive e=NULL, robustify it Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 044/137] iio-light: Use a signed return type for ltr501_match_samp_freq() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    Re: [PATCH 4.4 000/137] 4.4.3-stable review Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-02-24 05:50 +0100
      Re: [PATCH 4.4 000/137] 4.4.3-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100
        Re: [PATCH 4.4 000/137] 4.4.3-stable review Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-02-24 07:30 +0100
    [PATCH 4.4 032/137] tracing: Fix freak link error caused by branch tracer Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 038/137] drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 016/137] serial: 8250_pci: Add Intel Broadwell ports Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 052/137] cifs: fix race between call_async() and reconnect() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 042/137] iio: adis_buffer: Fix out-of-bounds memory access Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 014/137] pty: make sure super_block is still valid in final /dev/tty close Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 056/137] pNFS/flexfiles: Fix an Oopsable typo in ff_mirror_match_fh() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 018/137] ext4: fix scheduling in atomic on group checksum failure Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 045/137] iio: add HAS_IOMEM dependency to VF610_ADC Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 053/137] cifs_dbg() outputs an uninitialized buffer in cifs_readdir() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 055/137] NFS: Fix attribute cache revalidation Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 015/137] tty: Add support for PCIe WCH382 2S multi-IO card Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 050/137] iio: inkern: fix a NULL dereference on error Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 041/137] scsi: fix soft lockup in scsi_remove_target() on module removal Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 036/137] iscsi-target: Fix potential dead-lock during node acl delete Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 05:50 +0100
    [PATCH 4.4 037/137] SCSI: fix crashes in sd and sr runtime PM Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:00 +0100
    Re: [PATCH 4.4 000/137] 4.4.3-stable review Shuah Khan <shuahkh@osg.samsung.com> - 2016-02-24 19:30 +0100
      Re: [PATCH 4.4 000/137] 4.4.3-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-25 20:10 +0100
    Re: [PATCH 4.4 000/137] 4.4.3-stable review Guenter Roeck <linux@roeck-us.net> - 2016-02-25 07:00 +0100
      Re: [PATCH 4.4 000/137] 4.4.3-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-25 20:00 +0100

Page 7 of 7 — ← Prev page 1 2 3 4 5 6 [7]

#1341462 — [PATCH 4.4 055/137] NFS: Fix attribute cache revalidation

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <trond.myklebust@primarydata.com>

commit ade14a7df796d4e86bd9d181193c883a57b13db0 upstream.

If a NFSv4 client uses the cache_consistency_bitmask in order to
request only information about the change attribute, timestamps and
size, then it has not revalidated all attributes, and hence the
attribute timeout timestamp should not be updated.

Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/inode.c |   54 +++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 15 deletions(-)

--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1641,6 +1641,7 @@ static int nfs_update_inode(struct inode
 	unsigned long invalid = 0;
 	unsigned long now = jiffies;
 	unsigned long save_cache_validity;
+	bool cache_revalidated = true;
 
 	dfprintk(VFS, "NFS: %s(%s/%lu fh_crc=0x%08x ct=%d info=0x%x)\n",
 			__func__, inode->i_sb->s_id, inode->i_ino,
@@ -1702,22 +1703,28 @@ static int nfs_update_inode(struct inode
 				nfs_force_lookup_revalidate(inode);
 			inode->i_version = fattr->change_attr;
 		}
-	} else
+	} else {
 		nfsi->cache_validity |= save_cache_validity;
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
 		memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
-	} else if (server->caps & NFS_CAP_MTIME)
+	} else if (server->caps & NFS_CAP_MTIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
 		memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
-	} else if (server->caps & NFS_CAP_CTIME)
+	} else if (server->caps & NFS_CAP_CTIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	/* Check if our cached file size is stale */
 	if (fattr->valid & NFS_ATTR_FATTR_SIZE) {
@@ -1737,19 +1744,23 @@ static int nfs_update_inode(struct inode
 					(long long)cur_isize,
 					(long long)new_isize);
 		}
-	} else
+	} else {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_PAGECACHE
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 
 	if (fattr->valid & NFS_ATTR_FATTR_ATIME)
 		memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
-	else if (server->caps & NFS_CAP_ATIME)
+	else if (server->caps & NFS_CAP_ATIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATIME
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_MODE) {
 		if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) {
@@ -1758,36 +1769,42 @@ static int nfs_update_inode(struct inode
 			inode->i_mode = newmode;
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 		}
-	} else if (server->caps & NFS_CAP_MODE)
+	} else if (server->caps & NFS_CAP_MODE) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
 		if (!uid_eq(inode->i_uid, fattr->uid)) {
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 			inode->i_uid = fattr->uid;
 		}
-	} else if (server->caps & NFS_CAP_OWNER)
+	} else if (server->caps & NFS_CAP_OWNER) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
 		if (!gid_eq(inode->i_gid, fattr->gid)) {
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 			inode->i_gid = fattr->gid;
 		}
-	} else if (server->caps & NFS_CAP_OWNER_GROUP)
+	} else if (server->caps & NFS_CAP_OWNER_GROUP) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_NLINK) {
 		if (inode->i_nlink != fattr->nlink) {
@@ -1796,19 +1813,22 @@ static int nfs_update_inode(struct inode
 				invalid |= NFS_INO_INVALID_DATA;
 			set_nlink(inode, fattr->nlink);
 		}
-	} else if (server->caps & NFS_CAP_NLINK)
+	} else if (server->caps & NFS_CAP_NLINK) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
 		/*
 		 * report the blocks in 512byte units
 		 */
 		inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
- 	}
-	if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
+	} else if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
 		inode->i_blocks = fattr->du.nfs2.blocks;
+	else
+		cache_revalidated = false;
 
 	/* Update attrtimeo value if we're out of the unstable period */
 	if (invalid & NFS_INO_INVALID_ATTR) {
@@ -1818,9 +1838,13 @@ static int nfs_update_inode(struct inode
 		/* Set barrier to be more recent than all outstanding updates */
 		nfsi->attr_gencount = nfs_inc_attr_generation_counter();
 	} else {
-		if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
-			if ((nfsi->attrtimeo <<= 1) > NFS_MAXATTRTIMEO(inode))
-				nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
+		if (cache_revalidated) {
+			if (!time_in_range_open(now, nfsi->attrtimeo_timestamp,
+				nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
+				nfsi->attrtimeo <<= 1;
+				if (nfsi->attrtimeo > NFS_MAXATTRTIMEO(inode))
+					nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
+			}
 			nfsi->attrtimeo_timestamp = now;
 		}
 		/* Set the barrier to be more recent than this fattr */
@@ -1829,7 +1853,7 @@ static int nfs_update_inode(struct inode
 	}
 
 	/* Don't declare attrcache up to date if there were no attrs! */
-	if (fattr->valid != 0)
+	if (cache_revalidated)
 		invalid &= ~NFS_INO_INVALID_ATTR;
 
 	/* Don't invalidate the data if we were to blame */

[toc] | [prev] | [next] | [standalone]

#1341463 — [PATCH 4.4 015/137] tty: Add support for PCIe WCH382 2S multi-IO card

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jeremy McNicoll <jmcnicol@redhat.com>

commit 7dde55787b43a8f2b4021916db38d90c03a2ec64 upstream.

WCH382 2S board is a PCIe card with 2 DB9 COM ports detected as
Serial controller: Device 1c00:3253 (rev 10) (prog-if 05 [16850])

Signed-off-by: Jeremy McNicoll <jmcnicol@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/8250/8250_pci.c |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1936,6 +1936,7 @@ pci_wch_ch38x_setup(struct serial_privat
 #define PCIE_VENDOR_ID_WCH		0x1c00
 #define PCIE_DEVICE_ID_WCH_CH382_2S1P	0x3250
 #define PCIE_DEVICE_ID_WCH_CH384_4S	0x3470
+#define PCIE_DEVICE_ID_WCH_CH382_2S	0x3253
 
 #define PCI_VENDOR_ID_PERICOM			0x12D8
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7951	0x7951
@@ -2618,6 +2619,14 @@ static struct pci_serial_quirk pci_seria
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_wch_ch353_setup,
 	},
+	/* WCH CH382 2S card (16850 clone) */
+	{
+		.vendor         = PCIE_VENDOR_ID_WCH,
+		.device         = PCIE_DEVICE_ID_WCH_CH382_2S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch38x_setup,
+	},
 	/* WCH CH382 2S1P card (16850 clone) */
 	{
 		.vendor         = PCIE_VENDOR_ID_WCH,
@@ -2936,6 +2945,7 @@ enum pci_board_num_t {
 	pbn_fintek_4,
 	pbn_fintek_8,
 	pbn_fintek_12,
+	pbn_wch382_2,
 	pbn_wch384_4,
 	pbn_pericom_PI7C9X7951,
 	pbn_pericom_PI7C9X7952,
@@ -3756,6 +3766,13 @@ static struct pciserial_board pci_boards
 		.base_baud	= 115200,
 		.first_offset	= 0x40,
 	},
+	[pbn_wch382_2] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+		.first_offset	= 0xC0,
+	},
 	[pbn_wch384_4] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 4,
@@ -5545,6 +5562,10 @@ static struct pci_device_id serial_pci_t
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_b0_bt_2_115200 },
 
+	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_wch382_2 },
+
 	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_wch384_4 },

[toc] | [prev] | [next] | [standalone]

#1341464 — [PATCH 4.4 050/137] iio: inkern: fix a NULL dereference on error

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

commit d81dac3c1c5295c61b15293074ac2bd3254e1875 upstream.

In twl4030_bci_probe() there are some failure paths where we call
iio_channel_release() with a NULL pointer.  (Apparently, that driver can
opperate without a valid channel pointer).  Let's fix it by adding a
NULL check in iio_channel_release().

Fixes: 2202e1fc5a29 ('drivers: power: twl4030_charger: fix link problems when building as module')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/iio/inkern.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get);
 
 void iio_channel_release(struct iio_channel *channel)
 {
+	if (!channel)
+		return;
 	iio_device_put(channel->indio_dev);
 	kfree(channel);
 }

[toc] | [prev] | [next] | [standalone]

#1341465 — [PATCH 4.4 041/137] scsi: fix soft lockup in scsi_remove_target() on module removal

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 90a88d6ef88edcfc4f644dddc7eef4ea41bccf8b upstream.

This softlockup is currently happening:

[  444.088002] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:29]
[  444.088002] Modules linked in: lpfc(-) qla2x00tgt(O) qla2xxx_scst(O) scst_vdisk(O) scsi_transport_fc libcrc32c scst(O) dlm configfs nfsd lockd grace nfs_acl auth_rpcgss sunrpc ed
d snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device dm_mod iTCO_wdt snd_hda_codec_realtek snd_hda_codec_generic gpio_ich iTCO_vendor_support ppdev snd_hda_intel snd_hda_codec snd_hda
_core snd_hwdep tg3 snd_pcm snd_timer libphy lpc_ich parport_pc ptp acpi_cpufreq snd pps_core fjes parport i2c_i801 ehci_pci tpm_tis tpm sr_mod cdrom soundcore floppy hwmon sg 8250_
fintek pcspkr i915 drm_kms_helper uhci_hcd ehci_hcd drm fb_sys_fops sysimgblt sysfillrect syscopyarea i2c_algo_bit usbcore button video usb_common fan ata_generic ata_piix libata th
ermal
[  444.088002] CPU: 1 PID: 29 Comm: kworker/1:1 Tainted: G           O    4.4.0-rc5-2.g1e923a3-default #1
[  444.088002] Hardware name: FUJITSU SIEMENS ESPRIMO E           /D2164-A1, BIOS 5.00 R1.10.2164.A1               05/08/2006
[  444.088002] Workqueue: fc_wq_4 fc_rport_final_delete [scsi_transport_fc]
[  444.088002] task: f6266ec0 ti: f6268000 task.ti: f6268000
[  444.088002] EIP: 0060:[<c07e7044>] EFLAGS: 00000286 CPU: 1
[  444.088002] EIP is at _raw_spin_unlock_irqrestore+0x14/0x20
[  444.088002] EAX: 00000286 EBX: f20d3800 ECX: 00000002 EDX: 00000286
[  444.088002] ESI: f50ba800 EDI: f2146848 EBP: f6269ec8 ESP: f6269ec8
[  444.088002]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  444.088002] CR0: 8005003b CR2: 08f96600 CR3: 363ae000 CR4: 000006d0
[  444.088002] Stack:
[  444.088002]  f6269eec c066b0f7 00000286 f2146848 f50ba808 f50ba800 f50ba800 f2146a90
[  444.088002]  f2146848 f6269f08 f8f0a4ed f3141000 f2146800 f2146a90 f619fa00 00000040
[  444.088002]  f6269f40 c026cb25 00000001 166c6392 00000061 f6757140 f6136340 00000004
[  444.088002] Call Trace:
[  444.088002]  [<c066b0f7>] scsi_remove_target+0x167/0x1c0
[  444.088002]  [<f8f0a4ed>] fc_rport_final_delete+0x9d/0x1e0 [scsi_transport_fc]
[  444.088002]  [<c026cb25>] process_one_work+0x155/0x3e0
[  444.088002]  [<c026cde7>] worker_thread+0x37/0x490
[  444.088002]  [<c027214b>] kthread+0x9b/0xb0
[  444.088002]  [<c07e72c1>] ret_from_kernel_thread+0x21/0x40

What appears to be happening is that something has pinned the target
so it can't go into STARGET_DEL via final release and the loop in
scsi_remove_target spins endlessly until that happens.

The fix for this soft lockup is to not keep looping over a device that
we've called remove on but which hasn't gone into DEL state.  This
patch will retain a simplistic memory of the last target and not keep
looping over it.

Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Tested-by: Sebastian Herbszt <herbszt@gmx.de>
Fixes: 40998193560dab6c3ce8d25f4fa58a23e252ef38
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/scsi_sysfs.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1192,16 +1192,18 @@ static void __scsi_remove_target(struct
 void scsi_remove_target(struct device *dev)
 {
 	struct Scsi_Host *shost = dev_to_shost(dev->parent);
-	struct scsi_target *starget;
+	struct scsi_target *starget, *last_target = NULL;
 	unsigned long flags;
 
 restart:
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_for_each_entry(starget, &shost->__targets, siblings) {
-		if (starget->state == STARGET_DEL)
+		if (starget->state == STARGET_DEL ||
+		    starget == last_target)
 			continue;
 		if (starget->dev.parent == dev || &starget->dev == dev) {
 			kref_get(&starget->reap_ref);
+			last_target = starget;
 			spin_unlock_irqrestore(shost->host_lock, flags);
 			__scsi_remove_target(starget);
 			scsi_target_reap(starget);

[toc] | [prev] | [next] | [standalone]

#1341466 — [PATCH 4.4 036/137] iscsi-target: Fix potential dead-lock during node acl delete

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicholas Bellinger <nab@linux-iscsi.org>

commit 26a99c19f810b2593410899a5b304b21b47428a6 upstream.

This patch is a iscsi-target specific bug-fix for a dead-lock
that can occur during explicit struct se_node_acl->acl_group
se_session deletion via configfs rmdir(2), when iscsi-target
time2retain timer is still active.

It changes iscsi-target to obtain se_portal_group->session_lock
internally using spin_in_locked() to check for the specific
se_node_acl configfs shutdown rmdir(2) case.

Note this patch is intended for stable, and the subsequent
v4.5-rc patch converts target_core_tpg.c to use proper
se_sess->sess_kref reference counting for both se_node_acl
deletion + se_node_acl->queue_depth se_session restart.

Reported-by:: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Andy Grover <agrover@redhat.com>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/target/iscsi/iscsi_target_configfs.c |   16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1593,7 +1593,8 @@ static int lio_tpg_check_prot_fabric_onl
 }
 
 /*
- * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
+ * Called with spin_lock_irq(struct se_portal_group->session_lock) held
+ * or not held.
  *
  * Also, this function calls iscsit_inc_session_usage_count() on the
  * struct iscsi_session in question.
@@ -1601,19 +1602,32 @@ static int lio_tpg_check_prot_fabric_onl
 static int lio_tpg_shutdown_session(struct se_session *se_sess)
 {
 	struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+	struct se_portal_group *se_tpg = se_sess->se_tpg;
+	bool local_lock = false;
+
+	if (!spin_is_locked(&se_tpg->session_lock)) {
+		spin_lock_irq(&se_tpg->session_lock);
+		local_lock = true;
+	}
 
 	spin_lock(&sess->conn_lock);
 	if (atomic_read(&sess->session_fall_back_to_erl0) ||
 	    atomic_read(&sess->session_logout) ||
 	    (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
 		spin_unlock(&sess->conn_lock);
+		if (local_lock)
+			spin_unlock_irq(&sess->conn_lock);
 		return 0;
 	}
 	atomic_set(&sess->session_reinstatement, 1);
 	spin_unlock(&sess->conn_lock);
 
 	iscsit_stop_time2retain_timer(sess);
+	spin_unlock_irq(&se_tpg->session_lock);
+
 	iscsit_stop_session(sess, 1, 1);
+	if (!local_lock)
+		spin_lock_irq(&se_tpg->session_lock);
 
 	return 1;
 }

[toc] | [prev] | [next] | [standalone]

#1341499 — [PATCH 4.4 037/137] SCSI: fix crashes in sd and sr runtime PM

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit 13b4389143413a1f18127c07f72c74cad5b563e8 upstream.

Runtime suspend during driver probe and removal can cause problems.
The driver's runtime_suspend or runtime_resume callbacks may invoked
before the driver has finished binding to the device or after the
driver has unbound from the device.

This problem shows up with the sd and sr drivers, and can cause disk
or CD/DVD drives to become unusable as a result.  The fix is simple.
The drivers store a pointer to the scsi_disk or scsi_cd structure as
their private device data when probing is finished, so we simply have
to be sure to clear the private data during removal and test it during
runtime suspend/resume.

This fixes <https://bugs.debian.org/801925>.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Paul Menzel <paul.menzel@giantmonkey.de>
Reported-by: Erich Schubert <erich@debian.org>
Reported-by: Alexandre Rossi <alexandre.rossi@gmail.com>
Tested-by: Paul Menzel <paul.menzel@giantmonkey.de>
Tested-by: Erich Schubert <erich@debian.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/sd.c |    7 +++++--
 drivers/scsi/sr.c |    4 ++++
 2 files changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3268,8 +3268,8 @@ static int sd_suspend_common(struct devi
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (!sdkp)
-		return 0;	/* this can happen */
+	if (!sdkp)	/* E.g.: runtime suspend following sd_remove() */
+		return 0;
 
 	if (sdkp->WCE && sdkp->media_present) {
 		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
@@ -3308,6 +3308,9 @@ static int sd_resume(struct device *dev)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
 
+	if (!sdkp)	/* E.g.: runtime resume at the start of sd_probe() */
+		return 0;
+
 	if (!sdkp->device->manage_start_stop)
 		return 0;
 
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -144,6 +144,9 @@ static int sr_runtime_suspend(struct dev
 {
 	struct scsi_cd *cd = dev_get_drvdata(dev);
 
+	if (!cd)	/* E.g.: runtime suspend following sr_remove() */
+		return 0;
+
 	if (cd->media_present)
 		return -EBUSY;
 	else
@@ -985,6 +988,7 @@ static int sr_remove(struct device *dev)
 	scsi_autopm_get_device(cd->device);
 
 	del_gendisk(cd->disk);
+	dev_set_drvdata(dev, NULL);
 
 	mutex_lock(&sr_ref_mutex);
 	kref_put(&cd->kref, sr_kref_release);

[toc] | [prev] | [next] | [standalone]

#1342299

On 02/23/2016 08:32 PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.4.3 release.
> There are 137 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 Fri Feb 26 03:33:58 UTC 2016.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.3-rc1.gz
> and the diffstat can be found below.
> 

Compiled and booted on my test system.
No dmesg regressions.

thanks,
-- Shuah

-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@osg.samsung.com | (970) 217-8978

[toc] | [prev] | [next] | [standalone]

#1343404

On Wed, Feb 24, 2016 at 11:28:04AM -0700, Shuah Khan wrote:
> On 02/23/2016 08:32 PM, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 4.4.3 release.
> > There are 137 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 Fri Feb 26 03:33:58 UTC 2016.
> > Anything received after that time might be too late.
> > 
> > The whole patch series can be found in one patch at:
> > 	kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.3-rc1.gz
> > and the diffstat can be found below.
> > 
> 
> Compiled and booted on my test system.
> No dmesg regressions.

Thanks for testing all of these and letting me know.

greg k-h

[toc] | [prev] | [next] | [standalone]

#1342843

On 02/23/2016 07:32 PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.4.3 release.
> There are 137 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 Fri Feb 26 03:33:58 UTC 2016.
> Anything received after that time might be too late.
>

Build results:
	total: 145 pass: 145 fail: 0
Qemu test results:
	total: 96 pass: 96 fail: 0

Details are available at http://kerneltests.org/builders.

Guenter

[toc] | [prev] | [next] | [standalone]

#1343401

On Wed, Feb 24, 2016 at 09:53:38PM -0800, Guenter Roeck wrote:
> On 02/23/2016 07:32 PM, Greg Kroah-Hartman wrote:
> >This is the start of the stable review cycle for the 4.4.3 release.
> >There are 137 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 Fri Feb 26 03:33:58 UTC 2016.
> >Anything received after that time might be too late.
> >
> 
> Build results:
> 	total: 145 pass: 145 fail: 0
> Qemu test results:
> 	total: 96 pass: 96 fail: 0
> 
> Details are available at http://kerneltests.org/builders.

Thanks for testing all of these and letting me know.

greg k-h

[toc] | [prev] | [standalone]

Page 7 of 7 — ← Prev page 1 2 3 4 5 6 [7]

Back to top | Article view | linux.kernel

csiph-web