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[3.13.y-ckt stable] Linux 3.13.11-ckt34 stable review

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  [3.13.y-ckt stable] Linux 3.13.11-ckt34 stable review Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 030/136] posix-clock: Fix return code on the poll method's error path Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 133/136] phonet: properly unshare skbs in phonet_rcv() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 051/136] iwlwifi: update and fix 7265 series PCI IDs Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 084/136] ALSA: timer: Harden slave timer list handling Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 074/136] mmc: mmci: fix an ages old detection error Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 076/136] sparc64: fix incorrect sign extension in sys_sparc64_personality Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 008/136] drm/radeon: call hpd_irq_event on resume Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 059/136] s390: fix normalization bug in exception table sorting Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 107/136] SCSI: initio: remove duplicate module device table Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 128/136] unix: properly account for FDs passed over unix sockets Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 135/136] team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 001/136] drm/nv4c/mc: nv4x igp's have a different msi rearm register Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 113/136] kconfig: return 'false' instead of 'no' in bool function Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 021/136] futex: Drop refcount if requeue_pi() acquired the rtmutex Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:20 +0100
    [PATCH 3.13.y-ckt 114/136] perf/x86: Fix filter_events() bug with event mappings Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 116/136] firmware: actually return NULL on failed request_firmware_nowait() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 115/136] power: test_power: correctly handle empty writes Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 127/136] connector: bump skb->users before callback invocation Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 121/136] batman-adv: Drop immediate orig_node free function Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 117/136] mmc: sd: limit SD card power limit according to cards capabilities Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 131/136] tcp_yeah: don't set ssthresh below 2 Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 123/136] mmc: debugfs: correct wrong voltage value Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 063/136] x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 122/136] printk: help pr_debug and pr_devel to optimize out arguments Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 130/136] net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 118/136] Btrfs: clean up an error code in btrfs_init_space_info() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 126/136] sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 132/136] bonding: Prevent IPv6 link local address on enslaved devices Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 125/136] veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 119/136] batman-adv: Avoid recursive call_rcu for batadv_bla_claim Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 129/136] bridge: Only call /sbin/bridge-stp for the initial network namespace Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 120/136] batman-adv: Avoid recursive call_rcu for batadv_nc_node Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:30 +0100
    [PATCH 3.13.y-ckt 106/136] [media] rc: allow rc modules to be loaded if rc-main is not a module Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 097/136] ALSA: hrtimer: Fix stall by hrtimer_cancel() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 096/136] crypto: af_alg - Forbid bind(2) when nokey child sockets are present Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 110/136] mtd: nand: fix ONFI parameter page layout Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 101/136] crypto: algif_skcipher - Load TX SG list after waiting Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 109/136] ath9k_htc: check for underflow in ath9k_htc_rx_msg() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 100/136] ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0 Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 112/136] pinctrl: bcm2835: Fix memory leak in error path Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 099/136] ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 111/136] ALSA: fm801: propagate TUNER_ONLY bit when autodetected Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 094/136] crypto: hash - Add crypto_ahash_has_setkey Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 104/136] iscsi-target: Fix potential dead-lock during node acl delete Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 098/136] ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 087/136] panic: release stale console lock to always get the logbuf printed out Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 108/136] clk: xgene: Fix divider with non-zero shift value Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 102/136] crypto: crc32c - Fix crc32c soft dependency Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 103/136] IB/qib: fix mcast detach when qp not attached Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 095/136] crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 085/136] mm: soft-offline: check return value in second __get_any_page() call Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 105/136] ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 088/136] kernel/panic.c: turn off locks debug before releasing console lock Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:40 +0100
    [PATCH 3.13.y-ckt 081/136] dma-debug: switch check from _text to _stext Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 060/136] xfs: inode recovery readahead can race with inode buffer creation Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 062/136] Input: elantech - mark protocols v2 and v3 as semi-mt Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 055/136] uml: fix hostfs mknod() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 067/136] virtio_balloon: fix race between migration and ballooning Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 083/136] ocfs2/dlm: ignore cleaning the migration mle that is inuse Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 079/136] cifs_dbg() outputs an uninitialized buffer in cifs_readdir() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 064/136] ALSA: seq: Fix missing NULL check at remove_events ioctl Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 078/136] cifs: fix race between call_async() and reconnect() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 065/136] ALSA: seq: Fix race at timer setup and close Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 072/136] dmaengine: dw: fix cyclic transfer setup Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 093/136] crypto: af_alg - Add nokey compatibility path Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 075/136] ALSA: timer: Fix race among timer ioctls Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 070/136] powerpc/module: Handle R_PPC64_ENTRY relocations Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 086/136] memcg: only free spare array when readers are done Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 092/136] crypto: af_alg - Fix socket double-free when accept fails Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 069/136] scripts/recordmcount.pl: support data in text section on powerpc Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 061/136] clocksource/drivers/vt8500: Increase the minimum delta Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 080/136] m32r: fix m32104ut_defconfig build fail Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 091/136] crypto: af_alg - Disallow bind/setkey/... after accept(2) Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 073/136] dmaengine: dw: fix cyclic transfer callbacks Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 058/136] x86/boot: Double BOOT_HEAP_SIZE to 64KB Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 082/136] scripts/bloat-o-meter: fix python3 syntax error Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 071/136] ALSA: timer: Fix double unlink of active_list Kamal Mostafa <kamal@canonical.com> - 2016-02-02 19:50 +0100
    [PATCH 3.13.y-ckt 041/136] bcache: allows use of register in udev to avoid "device_busy" error. Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 056/136] uml: flush stdout before forking Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 046/136] libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 050/136] PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 049/136] udf: Check output buffer length when converting name to CS0 Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 031/136] rtlwifi: rtl8192de: Fix incorrect module parameter descriptions Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 037/136] bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 042/136] bcache: prevent crash on changing writeback_running Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 033/136] rtlwifi: rtl8192ce: Fix handling of module parameters Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 038/136] bcache: fix a leak in bch_cached_dev_run() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 036/136] bcache: Add a cond_resched() call to gc Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 048/136] udf: Prevent buffer overrun with multi-byte characters Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 035/136] bcache: fix a livelock when we cause a huge number of cache misses Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 043/136] bcache: Change refill_dirty() to always scan entire disk if necessary Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 032/136] rtlwifi: rtl8192se: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 045/136] Input: i8042 - add Fujitsu Lifebook U745 to the nomux list Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 034/136] rtlwifi: rtl8192cu: Add missing parameter setup Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 053/136] ASoC: compress: Fix compress device direction check Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 047/136] x86/xen: don't reset vcpu_info on a cancelled suspend Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 040/136] bcache: add mutex lock for bch_is_open Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 052/136] locks: fix unlock when fcntl_setlk races with a close Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 044/136] wlcore/wl12xx: spi: fix NULL pointer dereference (Oops) Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 057/136] drm/nouveau/kms: take mode_config mutex in connector hotplug path Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 039/136] bcache: unregister reboot notifier if bcache fails to unregister device Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 054/136] dm snapshot: fix hung bios when copy error occurs Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:00 +0100
    [PATCH 3.13.y-ckt 020/136] dm thin: fix race condition when destroying thin pool workqueue Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 005/136] [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 027/136] USB: cp210x: add ID for ELV Marble Sound Board 1 Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 016/136] EDAC: Robustify workqueues destruction Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 015/136] EDAC: Don't try to cancel workqueue when it's never setup Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 011/136] time: Avoid signed overflow in timekeeping_get_ns() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 009/136] xhci: refuse loading if nousb is used Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 024/136] mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 023/136] mmc: sdio: Fix invalid vdd in voltage switch power cycle Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 019/136] dm space map metadata: remove unused variable in brb_pop() Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 014/136] EDAC, mc_sysfs: Fix freeing bus' name Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 025/136] udf: limit the maximum number of indirect extents in a row Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 018/136] powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 002/136] drm/nv4c/mc: disable msi Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 007/136] KVM: x86: correctly print #AC in traces Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 029/136] NFS: Fix attribute cache revalidation Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 003/136] drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 013/136] wlcore/wl12xx: spi: fix oops on firmware load Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 028/136] NFSv4: Don't perform cached access checks before we've OPENed the file Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 004/136] [media] gspca: ov534/topro: prevent a division by 0 Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 006/136] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100
    [PATCH 3.13.y-ckt 010/136] arm64: Clear out any singlestep state on a ptrace detach operation Kamal Mostafa <kamal@canonical.com> - 2016-02-02 20:10 +0100

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#1324507 — [PATCH 3.13.y-ckt 057/136] drm/nouveau/kms: take mode_config mutex in connector hotplug path

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ben Skeggs <bskeggs@redhat.com>

commit 0a882cadbc63fd2da3994af7115b4ada2fcbd638 upstream.

fdo#93634

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
[ kamal: backport to 3.13-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/nouveau/nouveau_connector.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 1674882..40bd3ae 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -925,10 +925,12 @@ nouveau_connector_hotplug_work(struct work_struct *work)
 	NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un",
 		 drm_get_connector_name(connector));
 
+	mutex_lock(&drm->dev->mode_config.mutex);
 	if (plugged)
 		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
 	else
 		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+	mutex_unlock(&drm->dev->mode_config.mutex);
 
 	drm_helper_hpd_irq_event(dev);
 }
-- 
1.9.1

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#1324508 — [PATCH 3.13.y-ckt 039/136] bcache: unregister reboot notifier if bcache fails to unregister device

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Zheng Liu <wenqing.lz@taobao.com>

commit 2ecf0cdb2b437402110ab57546e02abfa68a716b upstream.

In bcache_init() function it forgot to unregister reboot notifier if
bcache fails to unregister a block device.  This commit fixes this.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Tested-by: Joshua Schmid <jschmid@suse.com>
Tested-by: Eric Wheeler <bcache@linux.ewheeler.net>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/md/bcache/super.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 0dfe7ba..e984894 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2057,8 +2057,10 @@ static int __init bcache_init(void)
 	closure_debug_init();
 
 	bcache_major = register_blkdev(0, "bcache");
-	if (bcache_major < 0)
+	if (bcache_major < 0) {
+		unregister_reboot_notifier(&reboot);
 		return bcache_major;
+	}
 
 	if (!(bcache_wq = create_workqueue("bcache")) ||
 	    !(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
-- 
1.9.1

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#1324509 — [PATCH 3.13.y-ckt 054/136] dm snapshot: fix hung bios when copy error occurs

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mikulas Patocka <mpatocka@redhat.com>

commit 385277bfb57faac44e92497104ba542cdd82d5fe upstream.

When there is an error copying a chunk dm-snapshot can incorrectly hold
associated bios indefinitely, resulting in hung IO.

The function copy_callback sets pe->error if there was error copying the
chunk, and then calls complete_exception.  complete_exception calls
pending_complete on error, otherwise it calls commit_exception with
commit_callback (and commit_callback calls complete_exception).

The persistent exception store (dm-snap-persistent.c) assumes that calls
to prepare_exception and commit_exception are paired.
persistent_prepare_exception increases ps->pending_count and
persistent_commit_exception decreases it.

If there is a copy error, persistent_prepare_exception is called but
persistent_commit_exception is not.  This results in the variable
ps->pending_count never returning to zero and that causes some pending
exceptions (and their associated bios) to be held forever.

Fix this by unconditionally calling commit_exception regardless of
whether the copy was successful.  A new "valid" parameter is added to
commit_exception -- when the copy fails this parameter is set to zero so
that the chunk that failed to copy (and all following chunks) is not
recorded in the snapshot store.  Also, remove commit_callback now that
it is merely a wrapper around pending_complete.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/md/dm-exception-store.h |  2 +-
 drivers/md/dm-snap-persistent.c |  5 ++++-
 drivers/md/dm-snap-transient.c  |  4 ++--
 drivers/md/dm-snap.c            | 20 +++++---------------
 4 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h
index 0b25362..84e2770 100644
--- a/drivers/md/dm-exception-store.h
+++ b/drivers/md/dm-exception-store.h
@@ -70,7 +70,7 @@ struct dm_exception_store_type {
 	 * Update the metadata with this exception.
 	 */
 	void (*commit_exception) (struct dm_exception_store *store,
-				  struct dm_exception *e,
+				  struct dm_exception *e, int valid,
 				  void (*callback) (void *, int success),
 				  void *callback_context);
 
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 2d2b1b7..8f6d3ea 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -646,7 +646,7 @@ static int persistent_prepare_exception(struct dm_exception_store *store,
 }
 
 static void persistent_commit_exception(struct dm_exception_store *store,
-					struct dm_exception *e,
+					struct dm_exception *e, int valid,
 					void (*callback) (void *, int success),
 					void *callback_context)
 {
@@ -655,6 +655,9 @@ static void persistent_commit_exception(struct dm_exception_store *store,
 	struct core_exception ce;
 	struct commit_callback *cb;
 
+	if (!valid)
+		ps->valid = 0;
+
 	ce.old_chunk = e->old_chunk;
 	ce.new_chunk = e->new_chunk;
 	write_exception(ps, ps->current_committed++, &ce);
diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c
index 1ce9a25..31439d5 100644
--- a/drivers/md/dm-snap-transient.c
+++ b/drivers/md/dm-snap-transient.c
@@ -52,12 +52,12 @@ static int transient_prepare_exception(struct dm_exception_store *store,
 }
 
 static void transient_commit_exception(struct dm_exception_store *store,
-				       struct dm_exception *e,
+				       struct dm_exception *e, int valid,
 				       void (*callback) (void *, int success),
 				       void *callback_context)
 {
 	/* Just succeed */
-	callback(callback_context, 1);
+	callback(callback_context, valid);
 }
 
 static void transient_usage(struct dm_exception_store *store,
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index d892a05..dbd0f00 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1388,8 +1388,9 @@ static void __invalidate_snapshot(struct dm_snapshot *s, int err)
 	dm_table_event(s->ti->table);
 }
 
-static void pending_complete(struct dm_snap_pending_exception *pe, int success)
+static void pending_complete(void *context, int success)
 {
+	struct dm_snap_pending_exception *pe = context;
 	struct dm_exception *e;
 	struct dm_snapshot *s = pe->snap;
 	struct bio *origin_bios = NULL;
@@ -1459,24 +1460,13 @@ out:
 	free_pending_exception(pe);
 }
 
-static void commit_callback(void *context, int success)
-{
-	struct dm_snap_pending_exception *pe = context;
-
-	pending_complete(pe, success);
-}
-
 static void complete_exception(struct dm_snap_pending_exception *pe)
 {
 	struct dm_snapshot *s = pe->snap;
 
-	if (unlikely(pe->copy_error))
-		pending_complete(pe, 0);
-
-	else
-		/* Update the metadata if we are persistent */
-		s->store->type->commit_exception(s->store, &pe->e,
-						 commit_callback, pe);
+	/* Update the metadata if we are persistent */
+	s->store->type->commit_exception(s->store, &pe->e, !pe->copy_error,
+					 pending_complete, pe);
 }
 
 /*
-- 
1.9.1

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#1324512 — [PATCH 3.13.y-ckt 020/136] dm thin: fix race condition when destroying thin pool workqueue

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Nikolay Borisov <kernel@kyup.com>

commit 18d03e8c25f173f4107a40d0b8c24defb6ed69f3 upstream.

When a thin pool is being destroyed delayed work items are
cancelled using cancel_delayed_work(), which doesn't guarantee that on
return the delayed item isn't running.  This can cause the work item to
requeue itself on an already destroyed workqueue.  Fix this by using
cancel_delayed_work_sync() which guarantees that on return the work item
is not running anymore.

Fixes: 905e51b39a555 ("dm thin: commit outstanding data every second")
Fixes: 85ad643b7e7e5 ("dm thin: add timeout to stop out-of-data-space mode holding IO forever")
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
[ kamal: backport to 3.13-stable: no pool->no_space_timeout ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/md/dm-thin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 5b155b3f..c9c9d59 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2320,7 +2320,7 @@ static void pool_postsuspend(struct dm_target *ti)
 	struct pool_c *pt = ti->private;
 	struct pool *pool = pt->pool;
 
-	cancel_delayed_work(&pool->waker);
+	cancel_delayed_work_sync(&pool->waker);
 	flush_workqueue(pool->wq);
 	(void) commit(pool);
 }
-- 
1.9.1

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#1324513 — [PATCH 3.13.y-ckt 005/136] [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Malcolm Priestley <tvboxspy@gmail.com>

commit c9d57de6103e343f2d4e04ea8d9e417e10a24da7 upstream.

When in FE_TUNE_MODE_ONESHOT the frontend must report
the actual capabilities so user can take appropriate
action.

With frontends that can't do auto inversion this is done
by dvb-core automatically so CAN_INVERSION_AUTO is valid.

However, when in FE_TUNE_MODE_ONESHOT this is not true.

So only set FE_CAN_INVERSION_AUTO in modes other than
FE_TUNE_MODE_ONESHOT

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/media/dvb-core/dvb_frontend.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 1f925e8..46a9842 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2195,9 +2195,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 		dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n",
 				 __func__, c->delivery_system, fe->ops.info.type);
 
-		/* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
-		 * do it, it is done for it. */
-		info->caps |= FE_CAN_INVERSION_AUTO;
+		/* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */
+		if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))
+			info->caps |= FE_CAN_INVERSION_AUTO;
 		err = 0;
 		break;
 	}
-- 
1.9.1

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#1324514 — [PATCH 3.13.y-ckt 027/136] USB: cp210x: add ID for ELV Marble Sound Board 1

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Oliver Freyermuth <o.freyermuth@googlemail.com>

commit f7d7f59ab124748156ea551edf789994f05da342 upstream.

Add the USB device ID for ELV Marble Sound Board 1.

Signed-off-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/usb/serial/cp210x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index c699a0b..caa08a70 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -160,6 +160,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
 	{ USB_DEVICE(0x1BA4, 0x0002) },	/* Silicon Labs 358x factory default */
-- 
1.9.1

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#1324515 — [PATCH 3.13.y-ckt 016/136] EDAC: Robustify workqueues destruction

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Borislav Petkov <bp@suse.de>

commit fcd5c4dd8201595d4c598c9cca5e54760277d687 upstream.

EDAC workqueue destruction is really fragile. We cancel delayed work
but if it is still running and requeues itself, we still go ahead and
destroy the workqueue and the queued work explodes when workqueue core
attempts to run it.

Make the destruction more robust by switching op_state to offline so
that requeuing stops. Cancel any pending work *synchronously* too.

  EDAC i7core: Driver loaded.
  general protection fault: 0000 [#1] SMP
  CPU 12
  Modules linked in:
  Supported: Yes
  Pid: 0, comm: kworker/0:1 Tainted: G          IE   3.0.101-0-default #1 HP ProLiant DL380 G7
  RIP: 0010:[<ffffffff8107dcd7>]  [<ffffffff8107dcd7>] __queue_work+0x17/0x3f0
  < ... regs ...>
  Process kworker/0:1 (pid: 0, threadinfo ffff88019def6000, task ffff88019def4600)
  Stack:
   ...
  Call Trace:
   call_timer_fn
   run_timer_softirq
   __do_softirq
   call_softirq
   do_softirq
   irq_exit
   smp_apic_timer_interrupt
   apic_timer_interrupt
   intel_idle
   cpuidle_idle_call
   cpu_idle
  Code: ...
  RIP  __queue_work
   RSP <...>

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/edac/edac_device.c | 11 ++++-------
 drivers/edac/edac_mc.c     | 14 +++-----------
 drivers/edac/edac_pci.c    |  9 ++++-----
 3 files changed, 11 insertions(+), 23 deletions(-)

diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index 592af5f..5358737 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -435,16 +435,13 @@ void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev,
  */
 void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
 {
-	int status;
-
 	if (!edac_dev->edac_check)
 		return;
 
-	status = cancel_delayed_work(&edac_dev->work);
-	if (status == 0) {
-		/* workq instance might be running, wait for it */
-		flush_workqueue(edac_workqueue);
-	}
+	edac_dev->op_state = OP_OFFLINE;
+
+	cancel_delayed_work_sync(&edac_dev->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 33edd67..19dc0bc 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -584,18 +584,10 @@ static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec,
  */
 static void edac_mc_workq_teardown(struct mem_ctl_info *mci)
 {
-	int status;
-
-	if (mci->op_state != OP_RUNNING_POLL)
-		return;
-
-	status = cancel_delayed_work(&mci->work);
-	if (status == 0) {
-		edac_dbg(0, "not canceled, flush the queue\n");
+	mci->op_state = OP_OFFLINE;
 
-		/* workq instance might be running, wait for it */
-		flush_workqueue(edac_workqueue);
-	}
+	cancel_delayed_work_sync(&mci->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 2cf44b4d..b4b3860 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -274,13 +274,12 @@ static void edac_pci_workq_setup(struct edac_pci_ctl_info *pci,
  */
 static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci)
 {
-	int status;
-
 	edac_dbg(0, "\n");
 
-	status = cancel_delayed_work(&pci->work);
-	if (status == 0)
-		flush_workqueue(edac_workqueue);
+	pci->op_state = OP_OFFLINE;
+
+	cancel_delayed_work_sync(&pci->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
-- 
1.9.1

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#1324516 — [PATCH 3.13.y-ckt 015/136] EDAC: Don't try to cancel workqueue when it's never setup

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Stephen Boyd <sboyd@codeaurora.org>

commit 881f0fcef9993992c24f5b649a3fb67fd4208f8f upstream.

We only setup a workqueue for edac devices that use the polling
method. We still try to cancel the workqueue if an edac_device
uses the irq method though. This causes a warning from debug
objects when we remove an edac device:

WARNING: CPU: 0 PID: 56 at lib/debugobjects.c:260 debug_print_object+0x98/0xc0()
ODEBUG: assert_init not available (active state 0) object type: timer_list hint: stub_timer+0x0/0x28
Modules linked in: krait_edac(-)
CPU: 0 PID: 56 Comm: rmmod Not tainted 3.12.0-rc2-00035-g15292a0 #69
(unwind_backtrace+0x0/0x144)
(show_stack+0x20/0x24)
(dump_stack+0x74/0xb4)
(warn_slowpath_common+0x78/0x9c)
(warn_slowpath_fmt+0x40/0x48)
(debug_print_object+0x98/0xc0)
(debug_object_assert_init+0xdc/0xec)
(del_timer+0x24/0x7c)
(try_to_grab_pending+0xc0/0x1b0)
(cancel_delayed_work+0x2c/0xa0)
(edac_device_workq_teardown+0x1c/0x38)
(edac_device_del_device+0xb8/0xe4)
(krait_edac_remove+0x50/0x70 [krait_edac])
(platform_drv_remove+0x24/0x28)
(__device_release_driver+0x68/0xc0)
(driver_detach+0xc4/0xc8)
(bus_remove_driver+0xac/0x114)
(driver_unregister+0x38/0x58)
(platform_driver_unregister+0x1c/0x20)
(krait_edac_driver_exit+0x14/0x1c [krait_edac])
(SyS_delete_module+0x178/0x2b4)

Fix it by skipping the workqueue teardown for such devices.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Link: http://lkml.kernel.org/r/1388434457-4194-2-git-send-email-sboyd@codeaurora.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/edac/edac_device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index 1026743..592af5f 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -437,6 +437,9 @@ void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
 {
 	int status;
 
+	if (!edac_dev->edac_check)
+		return;
+
 	status = cancel_delayed_work(&edac_dev->work);
 	if (status == 0) {
 		/* workq instance might be running, wait for it */
-- 
1.9.1

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#1324518 — [PATCH 3.13.y-ckt 011/136] time: Avoid signed overflow in timekeeping_get_ns()

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: David Gibson <david@gibson.dropbear.id.au>

commit 35a4933a895927990772ae96fdcfd2f806929ee2 upstream.

1e75fa8 "time: Condense timekeeper.xtime into xtime_sec" replaced a call to
clocksource_cyc2ns() from timekeeping_get_ns() with an open-coded version
of the same logic to avoid keeping a semi-redundant struct timespec
in struct timekeeper.

However, the commit also introduced a subtle semantic change - where
clocksource_cyc2ns() uses purely unsigned math, the new version introduces
a signed temporary, meaning that if (delta * tk->mult) has a 63-bit
overflow the following shift will still give a negative result.  The
choice of 'maxsec' in __clocksource_updatefreq_scale() means this will
generally happen if there's a ~10 minute pause in examining the
clocksource.

This can be triggered on a powerpc KVM guest by stopping it from qemu for
a bit over 10 minutes.  After resuming time has jumped backwards several
minutes causing numerous problems (jiffies does not advance, msleep()s can
be extended by minutes..).  It doesn't happen on x86 KVM guests, because
the guest TSC is effectively frozen while the guest is stopped, which is
not the case for the powerpc timebase.

Obviously an unsigned (64 bit) overflow will only take twice as long as a
signed, 63-bit overflow.  I don't know the time code well enough to know
if that will still cause incorrect calculations, or if a 64-bit overflow
is avoided elsewhere.

Still, an incorrect forwards clock adjustment will cause less trouble than
time going backwards.  So, this patch removes the potential for
intermediate signed overflow.

Suggested-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: John Stultz <john.stultz@linaro.org>
[ kamal: backport to 3.13-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 kernel/time/timekeeping.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index b415457..f604f88 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -176,8 +176,7 @@ static inline s64 timekeeping_get_ns(struct timekeeper *tk)
 	/* calculate the delta since the last update_wall_time: */
 	cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
 
-	nsec = cycle_delta * tk->mult + tk->xtime_nsec;
-	nsec >>= tk->shift;
+	nsec = (cycle_delta * tk->mult + tk->xtime_nsec) >> tk->shift;
 
 	/* If arch requires, add in get_arch_timeoffset() */
 	return nsec + get_arch_timeoffset();
-- 
1.9.1

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#1324519 — [PATCH 3.13.y-ckt 009/136] xhci: refuse loading if nousb is used

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Oliver Neukum <oneukum@suse.com>

commit 1eaf35e4dd592c59041bc1ed3248c46326da1f5f upstream.

The module should fail to load.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
[ gregkh: xhci: fix placement of call to usb_disabled()
    In the backport of 1eaf35e4dd592c59041bc1ed3248c46326da1f5f, the call to
    usb_disabled() was too late, after we had already done some allocation.
    Move that call to the top of the function instead, making the logic
    match what is intended and is in the original patch. ]
Reported-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/usb/host/xhci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2951ccb..c363a36 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4857,6 +4857,9 @@ static int __init xhci_hcd_init(void)
 {
 	int retval;
 
+	if (usb_disabled())
+		return -ENODEV;
+
 	retval = xhci_register_pci();
 	if (retval < 0) {
 		pr_debug("Problem registering PCI driver.\n");
@@ -4884,6 +4887,7 @@ static int __init xhci_hcd_init(void)
 	BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
 	/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
 	BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
 	return 0;
 unreg_pci:
 	xhci_unregister_pci();
-- 
1.9.1

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#1324521 — [PATCH 3.13.y-ckt 024/136] mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Adrian Hunter <adrian.hunter@intel.com>

commit 5c671c410c8704800f4f1673b6f572137e7e6ddd upstream.

sdhci has a legacy facility to prevent runtime suspend if the
bus power is on.  This is needed in cases where the power to
the card is dependent on the bus power.  It is controlled by
a pair of functions: sdhci_runtime_pm_bus_on() and
sdhci_runtime_pm_bus_off().  These functions use a boolean
variable 'bus_on' to ensure changes are always paired.
There is an additional check for 'runtime_suspended' which is
the problem.  In fact, its use is ill-conceived as the only
requirement for the logic is that 'on' and 'off' are paired,
which is actually broken by the check, for example if the bus
power is turned on during runtime resume.  So remove  the check.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/mmc/host/sdhci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index dbc064b..df43531 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2646,7 +2646,7 @@ static int sdhci_runtime_pm_put(struct sdhci_host *host)
 
 static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
 {
-	if (host->runtime_suspended || host->bus_on)
+	if (host->bus_on)
 		return;
 	host->bus_on = true;
 	pm_runtime_get_noresume(host->mmc->parent);
@@ -2654,7 +2654,7 @@ static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
 
 static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
 {
-	if (host->runtime_suspended || !host->bus_on)
+	if (!host->bus_on)
 		return;
 	host->bus_on = false;
 	pm_runtime_put_noidle(host->mmc->parent);
-- 
1.9.1

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#1324522 — [PATCH 3.13.y-ckt 023/136] mmc: sdio: Fix invalid vdd in voltage switch power cycle

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Adrian Hunter <adrian.hunter@intel.com>

commit d9bfbb95ed598a09cf336adb0f190ee0ff802f0d upstream.

The 'ocr' parameter passed to mmc_set_signal_voltage()
defines the power-on voltage used when power cycling
after a failure to set the voltage.  However, in the
case of mmc_sdio_init_card(), the value passed has the
R4_18V_PRESENT flag set which is not valid for power-on
and results in an invalid vdd.  Fix by passing the card's
ocr value which does not have the flag.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/mmc/core/sdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 4d721c6..ae360b3 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -670,7 +670,7 @@ try_again:
 	 */
 	if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
 		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
-					ocr);
+					ocr_card);
 		if (err == -EAGAIN) {
 			sdio_reset(host);
 			mmc_go_idle(host);
-- 
1.9.1

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#1324526 — [PATCH 3.13.y-ckt 019/136] dm space map metadata: remove unused variable in brb_pop()

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mike Snitzer <snitzer@redhat.com>

commit 512167788a6fe9481a33a3cce5f80b684631a1bb upstream.

Remove the unused struct block_op pointer that was inadvertantly
introduced, via cut-and-paste of previous brb_op() code, as part of
commit 50dd842ad.

(Cc'ing stable@ because commit 50dd842ad did)

Fixes: 50dd842ad ("dm space map metadata: fix ref counting bug when bootstrapping a new space map")
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/md/persistent-data/dm-space-map-metadata.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 6b6efa7..9ecf56e 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -152,12 +152,9 @@ static int brb_peek(struct bop_ring_buffer *brb, struct block_op *result)
 
 static int brb_pop(struct bop_ring_buffer *brb)
 {
-	struct block_op *bop;
-
 	if (brb_empty(brb))
 		return -ENODATA;
 
-	bop = brb->bops + brb->begin;
 	brb->begin = brb_next(brb, brb->begin);
 
 	return 0;
-- 
1.9.1

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#1324527 — [PATCH 3.13.y-ckt 014/136] EDAC, mc_sysfs: Fix freeing bus' name

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Borislav Petkov <bp@suse.de>

commit 12e26969b32c79018165d52caff3762135614aa1 upstream.

I get the splat below when modprobing/rmmoding EDAC drivers. It happens
because bus->name is invalid after bus_unregister() has run. The Code: section
below corresponds to:

  .loc 1 1108 0
  movq    672(%rbx), %rax # mci_1(D)->bus, mci_1(D)->bus
  .loc 1 1109 0
  popq    %rbx    #

  .loc 1 1108 0
  movq    (%rax), %rdi    # _7->name,
  jmp     kfree   #

and %rax has some funky stuff 2030203020312030 which looks a lot like
something walked over it.

Fix that by saving the name ptr before doing stuff to string it points to.

  general protection fault: 0000 [#1] SMP
  Modules linked in: ...
  CPU: 4 PID: 10318 Comm: modprobe Tainted: G          I EN  3.12.51-11-default+ #48
  Hardware name: HP ProLiant DL380 G7, BIOS P67 05/05/2011
  task: ffff880311320280 ti: ffff88030da3e000 task.ti: ffff88030da3e000
  RIP: 0010:[<ffffffffa019da92>]  [<ffffffffa019da92>] edac_unregister_sysfs+0x22/0x30 [edac_core]
  RSP: 0018:ffff88030da3fe28  EFLAGS: 00010292
  RAX: 2030203020312030 RBX: ffff880311b4e000 RCX: 000000000000095c
  RDX: 0000000000000001 RSI: ffff880327bb9600 RDI: 0000000000000286
  RBP: ffff880311b4e750 R08: 0000000000000000 R09: ffffffff81296110
  R10: 0000000000000400 R11: 0000000000000000 R12: ffff88030ba1ac68
  R13: 0000000000000001 R14: 00000000011b02f0 R15: 0000000000000000
  FS:  00007fc9bf8f5700(0000) GS:ffff8801a7c40000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  CR2: 0000000000403c90 CR3: 000000019ebdf000 CR4: 00000000000007e0
  Stack:
  Call Trace:
    i7core_unregister_mci.isra.9
    i7core_remove
    pci_device_remove
    __device_release_driver
    driver_detach
    bus_remove_driver
    pci_unregister_driver
    i7core_exit
    SyS_delete_module
    system_call_fastpath
    0x7fc9bf426536
  Code: 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 53 48 89 fb e8 52 2a 1f e1 48 8b bb a0 02 00 00 e8 46 59 1f e1 48 8b 83 a0 02 00 00 5b <48> 8b 38 e9 26 9a fe e0 66 0f 1f 44 00 00 66 66 66 66 90 48 8b
  RIP  [<ffffffffa019da92>] edac_unregister_sysfs+0x22/0x30 [edac_core]
   RSP <ffff88030da3fe28>

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fixes: 7a623c039075 ("edac: rewrite the sysfs code to use struct device")
[ kamal: backport to 3.19-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/edac/edac_mc_sysfs.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index e5bdf21..9a51961 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -973,21 +973,26 @@ nomem:
  */
 int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
 {
+	char *name;
 	int i, err;
 
 	/*
 	 * The memory controller needs its own bus, in order to avoid
 	 * namespace conflicts at /sys/bus/edac.
 	 */
-	mci->bus->name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
-	if (!mci->bus->name)
+	name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
+	if (!name)
 		return -ENOMEM;
 
+	mci->bus->name = name;
+
 	edac_dbg(0, "creating bus %s\n", mci->bus->name);
 
 	err = bus_register(mci->bus);
-	if (err < 0)
+	if (err < 0) {
+		kfree(name);
 		return err;
+	}
 
 	/* get the /sys/devices/system/edac subsys reference */
 	mci->dev.type = &mci_attr_type;
@@ -1071,7 +1076,8 @@ fail:
 fail2:
 	device_unregister(&mci->dev);
 	bus_unregister(mci->bus);
-	kfree(mci->bus->name);
+	kfree(name);
+
 	return err;
 }
 
@@ -1102,10 +1108,12 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
 
 void edac_unregister_sysfs(struct mem_ctl_info *mci)
 {
+	const char *name = mci->bus->name;
+
 	edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev));
 	device_unregister(&mci->dev);
 	bus_unregister(mci->bus);
-	kfree(mci->bus->name);
+	kfree(name);
 }
 
 static void mc_attr_release(struct device *dev)
-- 
1.9.1

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#1324529 — [PATCH 3.13.y-ckt 025/136] udf: limit the maximum number of indirect extents in a row

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Vegard Nossum <vegard.nossum@oracle.com>

commit b0918d9f476a8434b055e362b83fa4fd1d462c3f upstream.

udf_next_aext() just follows extent pointers while extents are marked as
indirect. This can loop forever for corrupted filesystem. Limit number
the of indirect extents we are willing to follow in a row.

[JK: Updated changelog, limit, style]

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Jan Kara <jack@suse.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/udf/inode.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index cfdbbfd..26863a9 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -2061,14 +2061,29 @@ void udf_write_aext(struct inode *inode, struct extent_position *epos,
 		epos->offset += adsize;
 }
 
+/*
+ * Only 1 indirect extent in a row really makes sense but allow upto 16 in case
+ * someone does some weird stuff.
+ */
+#define UDF_MAX_INDIR_EXTS 16
+
 int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
 		     struct kernel_lb_addr *eloc, uint32_t *elen, int inc)
 {
 	int8_t etype;
+	unsigned int indirections = 0;
 
 	while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
 	       (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
 		int block;
+
+		if (++indirections > UDF_MAX_INDIR_EXTS) {
+			udf_err(inode->i_sb,
+				"too many indirect extents in inode %lu\n",
+				inode->i_ino);
+			return -1;
+		}
+
 		epos->block = *eloc;
 		epos->offset = sizeof(struct allocExtDesc);
 		brelse(epos->bh);
-- 
1.9.1

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#1324530 — [PATCH 3.13.y-ckt 018/136] powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Boqun Feng <boqun.feng@gmail.com>

commit 81d7a3294de7e9828310bbf986a67246b13fa01e upstream.

According to memory-barriers.txt, xchg*, cmpxchg* and their atomic_
versions all need to be fully ordered, however they are now just
RELEASE+ACQUIRE, which are not fully ordered.

So also replace PPC_RELEASE_BARRIER and PPC_ACQUIRE_BARRIER with
PPC_ATOMIC_ENTRY_BARRIER and PPC_ATOMIC_EXIT_BARRIER in
__{cmp,}xchg_{u32,u64} respectively to guarantee fully ordered semantics
of atomic{,64}_{cmp,}xchg() and {cmp,}xchg(), as a complement of commit
b97021f85517 ("powerpc: Fix atomic_xxx_return barrier semantics")

This patch depends on patch "powerpc: Make value-returning atomics fully
ordered" for PPC_ATOMIC_ENTRY_BARRIER definition.

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/powerpc/include/asm/cmpxchg.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
index e245aab..95b5151 100644
--- a/arch/powerpc/include/asm/cmpxchg.h
+++ b/arch/powerpc/include/asm/cmpxchg.h
@@ -18,12 +18,12 @@ __xchg_u32(volatile void *p, unsigned long val)
 	unsigned long prev;
 
 	__asm__ __volatile__(
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	lwarx	%0,0,%2 \n"
 	PPC405_ERR77(0,%2)
 "	stwcx.	%3,0,%2 \n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	: "=&r" (prev), "+m" (*(volatile unsigned int *)p)
 	: "r" (p), "r" (val)
 	: "cc", "memory");
@@ -61,12 +61,12 @@ __xchg_u64(volatile void *p, unsigned long val)
 	unsigned long prev;
 
 	__asm__ __volatile__(
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	ldarx	%0,0,%2 \n"
 	PPC405_ERR77(0,%2)
 "	stdcx.	%3,0,%2 \n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	: "=&r" (prev), "+m" (*(volatile unsigned long *)p)
 	: "r" (p), "r" (val)
 	: "cc", "memory");
@@ -152,14 +152,14 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
 	unsigned int prev;
 
 	__asm__ __volatile__ (
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	lwarx	%0,0,%2		# __cmpxchg_u32\n\
 	cmpw	0,%0,%3\n\
 	bne-	2f\n"
 	PPC405_ERR77(0,%2)
 "	stwcx.	%4,0,%2\n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	"\n\
 2:"
 	: "=&r" (prev), "+m" (*p)
@@ -198,13 +198,13 @@ __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
 	unsigned long prev;
 
 	__asm__ __volatile__ (
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	ldarx	%0,0,%2		# __cmpxchg_u64\n\
 	cmpd	0,%0,%3\n\
 	bne-	2f\n\
 	stdcx.	%4,0,%2\n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	"\n\
 2:"
 	: "=&r" (prev), "+m" (*p)
-- 
1.9.1

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#1324531 — [PATCH 3.13.y-ckt 002/136] drm/nv4c/mc: disable msi

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ilia Mirkin <imirkin@alum.mit.edu>

commit 4761703bd04bbdf56396d264903cc5a1fdcb3c01 upstream.

Several users have, over time, reported issues with MSI on these IGPs.
They're old, rarely available, and MSI doesn't provide such huge
advantages on them. Just disable.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87361
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74492
Fixes: fa8c9ac72fe ("drm/nv4c/mc: nv4x igp's have a different msi rearm register")
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c
index a75c35c..165401c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c
@@ -24,13 +24,6 @@
 
 #include "nv04.h"
 
-static void
-nv4c_mc_msi_rearm(struct nouveau_mc *pmc)
-{
-	struct nv04_mc_priv *priv = (void *)pmc;
-	nv_wr08(priv, 0x088050, 0xff);
-}
-
 struct nouveau_oclass *
 nv4c_mc_oclass = &(struct nouveau_mc_oclass) {
 	.base.handle = NV_SUBDEV(MC, 0x4c),
@@ -41,5 +34,4 @@ nv4c_mc_oclass = &(struct nouveau_mc_oclass) {
 		.fini = _nouveau_mc_fini,
 	},
 	.intr = nv04_mc_intr,
-	.msi_rearm = nv4c_mc_msi_rearm,
 }.base;
-- 
1.9.1

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#1324532 — [PATCH 3.13.y-ckt 007/136] KVM: x86: correctly print #AC in traces

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Paolo Bonzini <pbonzini@redhat.com>

commit aba2f06c070f604e388cf77b1dcc7f4cf4577eb0 upstream.

Poor #AC was so unimportant until a few days ago that we were
not even tracing its name correctly.  But now it's all over
the place.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/kvm/trace.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 545245d..d8a03f5 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -237,7 +237,7 @@ TRACE_EVENT(kvm_inj_virq,
 #define kvm_trace_sym_exc						\
 	EXS(DE), EXS(DB), EXS(BP), EXS(OF), EXS(BR), EXS(UD), EXS(NM),	\
 	EXS(DF), EXS(TS), EXS(NP), EXS(SS), EXS(GP), EXS(PF),		\
-	EXS(MF), EXS(MC)
+	EXS(MF), EXS(AC), EXS(MC)
 
 /*
  * Tracepoint for kvm interrupt injection:
-- 
1.9.1

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#1324533 — [PATCH 3.13.y-ckt 029/136] NFS: Fix attribute cache revalidation

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

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>
[ kamal: backport to 3.19-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/nfs/inode.c | 54 +++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 15 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 3bf36c2..06c66b7 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1440,6 +1440,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 	unsigned long invalid = 0;
 	unsigned long now = jiffies;
 	unsigned long save_cache_validity;
+	bool cache_revalidated = true;
 
 	dfprintk(VFS, "NFS: %s(%s/%ld fh_crc=0x%08x ct=%d info=0x%x)\n",
 			__func__, inode->i_sb->s_id, inode->i_ino,
@@ -1502,22 +1503,28 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 				nfs_force_lookup_revalidate(inode);
 			inode->i_version = fattr->change_attr;
 		}
-	} else if (server->caps & NFS_CAP_CHANGE_ATTR)
+	} else if (server->caps & NFS_CAP_CHANGE_ATTR) {
 		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) {
@@ -1538,19 +1545,23 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 					(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)) {
@@ -1559,36 +1570,42 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 			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) {
@@ -1597,19 +1614,22 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 				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) {
@@ -1618,15 +1638,19 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 		nfsi->attrtimeo_timestamp = now;
 		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;
 		}
 	}
 
 	/* 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 */
-- 
1.9.1

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#1324535 — [PATCH 3.13.y-ckt 003/136] drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c

3.13.11-ckt34 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Hans de Goede <hdegoede@redhat.com>

commit 0a363e85cdafbceeee6a49b91c604d0d4d070dc7 upstream.

MSI interrupts appear to not work for nv46 based cards. Change the mc
subdev oclass for these cards from nv44 to nv4c, the nv4c mc code is
identical to the nv44 mc code except that it does not use msi
(it does not define a msi_rearm callback).

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=90435
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
[ kamal: backport to 3.13-stable: file rename ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/nouveau/core/engine/device/nv40.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv40.c b/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
index 95f7c0c..42aed98 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
@@ -265,7 +265,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv40_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
-		device->oclass[NVDEV_SUBDEV_MC     ] =  nv44_mc_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] =  nv4c_mc_oclass;
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nv31_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nv46_fb_oclass;
-- 
1.9.1

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