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[3.19.y-ckt stable] Linux 3.19.8-ckt14 stable review

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  [3.19.y-ckt stable] Linux 3.19.8-ckt14 stable review Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:20 +0100
    [PATCH 3.19.y-ckt 174/210] vmstat: make vmstat_updater deferrable again and shut down on idle Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 201/210] batman-adv: Drop immediate batadv_neigh_node free function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 210/210] xfrm: dst_entries_init() per-net dst_ops Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 052/210] rtlwifi: rtl8192ce: Fix handling of module parameters Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 121/210] memcg: only free spare array when readers are done Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 197/210] bridge: fix lockdep addr_list_lock false positive splat Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 208/210] xen-netfront: respect user provided max_queues Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 193/210] bonding: Prevent IPv6 link local address on enslaved devices Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 172/210] mmc: sd: limit SD card power limit according to cards capabilities Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 004/210] ovl: allow zero size xattr Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 134/210] ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 205/210] team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 009/210] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 057/210] bcache: Add a cond_resched() call to gc Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 060/210] bcache: unregister reboot notifier if bcache fails to unregister device Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 194/210] phonet: properly unshare skbs in phonet_rcv() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 203/210] batman-adv: Drop immediate batadv_hard_iface free function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 046/210] rtlwifi: rtl8723be: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 161/210] mmc: sdhci: restore behavior when setting VDD via external regulator Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 098/210] scripts/recordmcount.pl: support data in text section on powerpc Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 071/210] drm/dp/mst: always send reply for UP request Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 198/210] batman-adv: Avoid recursive call_rcu for batadv_bla_claim Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 035/210] mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 111/210] cifs: fix race between call_async() and reconnect() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 165/210] perf/x86: Fix filter_events() bug with event mappings Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 206/210] sctp: Prevent soft lockup when sctp_accept() is called during a timeout event Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 192/210] net: preserve IP control block during GSO segmentation Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 200/210] batman-adv: Drop immediate batadv_orig_ifinfo free function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 081/210] uml: flush stdout before forking Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 117/210] ALSA: timer: Harden slave timer list handling Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 022/210] EDAC: Robustify workqueues destruction Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 038/210] nfs: Fix race in __update_open_stateid() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 006/210] [media] vb2: fix a regression in poll() behavior for output,streams Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 114/210] dma-debug: switch check from _text to _stext Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 207/210] xen-netback: respect user provided max_queues Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 170/210] um: Fix build error and kconfig for i386 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 202/210] batman-adv: Drop immediate neigh_ifinfo free function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 107/210] mmc: mmci: fix an ages old detection error Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 076/210] iwlwifi: update and fix 7265 series PCI IDs Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 196/210] ipv6: update skb->csum when CE mark is propagated Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 209/210] xen-netfront: update num_queues to real created Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 019/210] wlcore/wl12xx: spi: fix oops on firmware load Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 013/210] xhci: refuse loading if nousb is used Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 204/210] batman-adv: Drop immediate orig_node free function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 054/210] NFS: Fix attribute cache revalidation Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 168/210] target: Fix a memory leak in target_dev_lba_map_store() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 133/210] ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 190/210] tcp_yeah: don't set ssthresh below 2 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 159/210] ALSA: fm801: propagate TUNER_ONLY bit when autodetected Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 195/210] net: bpf: reject invalid shifts Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 199/210] batman-adv: Avoid recursive call_rcu for batadv_nc_node Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 147/210] MAINTAINERS: return arch/sh to maintained state, with new maintainers Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 012/210] drm/radeon: call hpd_irq_event on resume Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 103/210] x86/mm: Improve switch_mm() barrier comments Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 003/210] hotplugcpu: Avoid deadlocks by waking active_writer Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:30 +0100
    [PATCH 3.19.y-ckt 166/210] power: test_power: correctly handle empty writes Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 185/210] connector: bump skb->users before callback invocation Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 188/210] vxlan: fix test which detect duplicate vxlan iface Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 189/210] net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 163/210] sysrq: Fix warning in sysrq generated crash. Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 164/210] kconfig: return 'false' instead of 'no' in bool function Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 160/210] pinctrl: bcm2835: Fix memory leak in error path Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 177/210] printk: help pr_debug and pr_devel to optimize out arguments Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 157/210] Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()" Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 183/210] net: cdc_ncm: avoid changing RX/TX buffers on MTU changes Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 191/210] udp: disallow UFO for sockets with SO_NO_CHECK option Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 186/210] unix: properly account for FDs passed over unix sockets Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 176/210] btrfs: initialize the seq counter in struct btrfs_device Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 181/210] net/mlx4: Remove unused macro Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 171/210] kbuild: Demote 'sign-compare' warning to W=2 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 175/210] Btrfs: clean up an error code in btrfs_init_space_info() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 167/210] firmware: actually return NULL on failed request_firmware_nowait() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 184/210] sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 158/210] mtd: nand: denali: add missing nand_release() call in denali_remove() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 187/210] bridge: Only call /sbin/bridge-stp for the initial network namespace Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 182/210] veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 178/210] ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 162/210] x86/LDT: Print the real LDT base address Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 169/210] m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 180/210] IB/mlx4: Initialize hop_limit when creating address handle Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 173/210] net: tcp_memcontrol: properly detect ancestor socket pressure Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 179/210] mmc: debugfs: correct wrong voltage value Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:40 +0100
    [PATCH 3.19.y-ckt 125/210] ALSA: hda - Fix bass pin fixup for ASUS N550JX Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 135/210] ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 122/210] panic: release stale console lock to always get the logbuf printed out Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 149/210] drm/i915: On fb alloc failure, unref gem object where it gets refed Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 153/210] clk: st: avoid uninitialized variable use Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 141/210] IB/qib: Support creating qps with GFP_NOIO flag Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 123/210] kernel/panic.c: turn off locks debug before releasing console lock Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 132/210] ALSA: hrtimer: Fix stall by hrtimer_cancel() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 130/210] crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 151/210] SCSI: initio: remove duplicate module device table Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 129/210] crypto: hash - Add crypto_ahash_has_setkey Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 131/210] crypto: af_alg - Forbid bind(2) when nokey child sockets are present Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 156/210] mtd: nand: fix ONFI parameter page layout Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 145/210] ALSA: timer: Handle disconnection more safely Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 144/210] ALSA: hda - Flush the pending probe work at remove Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 124/210] printk: do cond_resched() between lines while outputting to consoles Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 142/210] ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 152/210] clk: xgene: Fix divider with non-zero shift value Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 136/210] ARM: debug-ll: fix BCM63xx entry for multiplatform Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 140/210] IB/qib: fix mcast detach when qp not attached Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 139/210] crypto: crc32c - Fix crc32c soft dependency Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 146/210] ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 150/210] [media] rc: allow rc modules to be loaded if rc-main is not a module Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 092/210] x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 154/210] ASoC: Intel: pass correct parameter in sst_alloc_stream_mrfld() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 143/210] iscsi-target: Fix potential dead-lock during node acl delete Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 085/210] x86/mm: Add barriers and document switch_mm()-vs-flush synchronization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 155/210] ath9k_htc: check for underflow in ath9k_htc_rx_msg() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 148/210] ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 127/210] crypto: af_alg - Fix socket double-free when accept fails Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 137/210] xfs: log mount failures don't wait for buffers to be released Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 138/210] crypto: algif_skcipher - Load TX SG list after waiting Kamal Mostafa <kamal@canonical.com> - 2016-01-29 02:50 +0100
    [PATCH 3.19.y-ckt 108/210] ALSA: timer: Fix race among timer ioctls Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 093/210] ALSA: seq: Fix missing NULL check at remove_events ioctl Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 116/210] ocfs2/dlm: ignore cleaning the migration mle that is inuse Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 109/210] sparc64: fix incorrect sign extension in sys_sparc64_personality Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 105/210] dmaengine: dw: fix cyclic transfer setup Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 119/210] zram: try vmalloc() after kmalloc() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 112/210] cifs_dbg() outputs an uninitialized buffer in cifs_readdir() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 120/210] mm: soft-offline: check return value in second __get_any_page() call Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 102/210] drm/i915: intel_hpd_init(): Fix suspend/resume reprobing Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 096/210] virtio_balloon: fix race between migration and ballooning Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 104/210] ALSA: timer: Fix double unlink of active_list Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 113/210] m32r: fix m32104ut_defconfig build fail Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 115/210] scripts/bloat-o-meter: fix python3 syntax error Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 090/210] clocksource/drivers/vt8500: Increase the minimum delta Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 106/210] dmaengine: dw: fix cyclic transfer callbacks Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 094/210] ALSA: seq: Fix race at timer setup and close Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 128/210] crypto: af_alg - Add nokey compatibility path Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 095/210] virtio_balloon: fix race by fill and leak Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 086/210] x86/boot: Double BOOT_HEAP_SIZE to 64KB Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 101/210] ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 097/210] parisc: Fix __ARCH_SI_PREAMBLE_SIZE Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 099/210] powerpc/module: Handle R_PPC64_ENTRY relocations Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 110/210] cifs: Ratelimit kernel log messages Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 100/210] ALSA: hda - fix the headset mic detection problem for a Dell laptop Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 091/210] Input: elantech - mark protocols v2 and v3 as semi-mt Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 118/210] zram/zcomp: use GFP_NOIO to allocate streams Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 126/210] crypto: af_alg - Disallow bind/setkey/... after accept(2) Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:00 +0100
    [PATCH 3.19.y-ckt 059/210] bcache: fix a leak in bch_cached_dev_run() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 084/210] ALSA: hda - Fixup inverted internal mic for Lenovo E50-80 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 069/210] udf: Check output buffer length when converting name to CS0 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 051/210] rtlwifi: rtl8192se: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 066/210] libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 055/210] rtlwifi: rtl_pci: Fix kernel panic Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 073/210] drm/dp/mst: fix in RAD element access Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 067/210] x86/xen: don't reset vcpu_info on a cancelled suspend Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 056/210] bcache: fix a livelock when we cause a huge number of cache misses Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 078/210] ASoC: compress: Fix compress device direction check Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 063/210] bcache: Change refill_dirty() to always scan entire disk if necessary Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 065/210] Input: i8042 - add Fujitsu Lifebook U745 to the nomux list Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 074/210] PCI: Fix minimum allocation address overwrite Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 053/210] rtlwifi: rtl8192cu: Add missing parameter setup Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 050/210] rtlwifi: rtl8192de: Fix incorrect module parameter descriptions Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 045/210] posix-clock: Fix return code on the poll method's error path Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 089/210] xfs: handle dquot buffer readahead in log recovery correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 068/210] udf: Prevent buffer overrun with multi-byte characters Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 082/210] drm/nouveau/kms: take mode_config mutex in connector hotplug path Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 083/210] ALSA: usb: Add native DSD support for Oppo HA-1 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 075/210] PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 087/210] s390: fix normalization bug in exception table sorting Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 058/210] bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 079/210] dm snapshot: fix hung bios when copy error occurs Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 072/210] drm/dp/mst: fix in MSTB RAD initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 062/210] bcache: prevent crash on changing writeback_running Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 061/210] bcache: allows use of register in udev to avoid "device_busy" error. Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 064/210] wlcore/wl12xx: spi: fix NULL pointer dereference (Oops) Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 088/210] xfs: inode recovery readahead can race with inode buffer creation Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 070/210] drm/dp/mst: process broadcast messages correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 080/210] uml: fix hostfs mknod() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 077/210] locks: fix unlock when fcntl_setlk races with a close Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:10 +0100
    [PATCH 3.19.y-ckt 027/210] dm thin: fix race condition when destroying thin pool workqueue Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 048/210] rtlwifi: rtl8821ae: Fix errors in parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 037/210] [media] rc: sunxi-cir: Initialize the spinlock properly Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 030/210] arm64: kernel: enforce pmuserenr_el0 initialization and restore Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 020/210] ovl: check dentry positiveness in ovl_cleanup_whiteouts() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 017/210] Bluetooth: Add support of Toshiba Broadcom based devices Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 033/210] mmc: sdio: Fix invalid vdd in voltage switch power cycle Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 047/210] rtlwifi: rtl8723ae: Fix initialization of module parameters Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 042/210] Thermal: initialize thermal zone device correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 040/210] NFSv4: Don't perform cached access checks before we've OPENed the file Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 049/210] rtlwifi: rtl8188ee: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 044/210] Thermal: do thermal zone update after a cooling device registered Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 026/210] dm space map metadata: remove unused variable in brb_pop() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 043/210] Thermal: handle thermal zone device properly during system sleep Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 024/210] powerpc: Make value-returning atomics fully ordered Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 025/210] powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 014/210] arm64: Clear out any singlestep state on a ptrace detach operation Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 029/210] arm64: mdscr_el1: avoid exposing DCC to userspace Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 018/210] rtlwifi: fix memory leak for USB device Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 041/210] NFS: Ensure we revalidate attributes before using execute_ok() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 028/210] futex: Drop refcount if requeue_pi() acquired the rtmutex Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 036/210] udf: limit the maximum number of indirect extents in a row Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 021/210] EDAC, mc_sysfs: Fix freeing bus' name Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 039/210] USB: cp210x: add ID for ELV Marble Sound Board 1 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 032/210] drm/radeon: clean up fujitsu quirks Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 034/210] mmc: sdhci: Fix DMA descriptor with zero data length Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 031/210] drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 023/210] arm64: mm: ensure that the zero page is visible to the page table walker Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:20 +0100
    [PATCH 3.19.y-ckt 016/210] ovl: root: copy attr Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 015/210] time: Avoid signed overflow in timekeeping_get_ns() Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 008/210] [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 010/210] KVM: x86: expose MSR_TSC_AUX to userspace Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 011/210] KVM: x86: correctly print #AC in traces Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 007/210] [media] gspca: ov534/topro: prevent a division by 0 Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:30 +0100
    [PATCH 3.19.y-ckt 002/210] drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:40 +0100
    [PATCH 3.19.y-ckt 005/210] ovl: use a minimal buffer in ovl_copy_xattr Kamal Mostafa <kamal@canonical.com> - 2016-01-29 03:40 +0100

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#1321309 — [PATCH 3.19.y-ckt 119/210] zram: try vmalloc() after kmalloc()

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Kyeongdon Kim <kyeongdon.kim@lge.com>

commit d913897abace843bba20249f3190167f7895e9c3 upstream.

When we're using LZ4 multi compression streams for zram swap, we found
out page allocation failure message in system running test.  That was
not only once, but a few(2 - 5 times per test).  Also, some failure
cases were continually occurring to try allocation order 3.

In order to make parallel compression private data, we should call
kzalloc() with order 2/3 in runtime(lzo/lz4).  But if there is no order
2/3 size memory to allocate in that time, page allocation fails.  This
patch makes to use vmalloc() as fallback of kmalloc(), this prevents
page alloc failure warning.

After using this, we never found warning message in running test, also
It could reduce process startup latency about 60-120ms in each case.

For reference a call trace :

    Binder_1: page allocation failure: order:3, mode:0x10c0d0
    CPU: 0 PID: 424 Comm: Binder_1 Tainted: GW 3.10.49-perf-g991d02b-dirty #20
    Call trace:
      dump_backtrace+0x0/0x270
      show_stack+0x10/0x1c
      dump_stack+0x1c/0x28
      warn_alloc_failed+0xfc/0x11c
      __alloc_pages_nodemask+0x724/0x7f0
      __get_free_pages+0x14/0x5c
      kmalloc_order_trace+0x38/0xd8
      zcomp_lz4_create+0x2c/0x38
      zcomp_strm_alloc+0x34/0x78
      zcomp_strm_multi_find+0x124/0x1ec
      zcomp_strm_find+0xc/0x18
      zram_bvec_rw+0x2fc/0x780
      zram_make_request+0x25c/0x2d4
      generic_make_request+0x80/0xbc
      submit_bio+0xa4/0x15c
      __swap_writepage+0x218/0x230
      swap_writepage+0x3c/0x4c
      shrink_page_list+0x51c/0x8d0
      shrink_inactive_list+0x3f8/0x60c
      shrink_lruvec+0x33c/0x4cc
      shrink_zone+0x3c/0x100
      try_to_free_pages+0x2b8/0x54c
      __alloc_pages_nodemask+0x514/0x7f0
      __get_free_pages+0x14/0x5c
      proc_info_read+0x50/0xe4
      vfs_read+0xa0/0x12c
      SyS_read+0x44/0x74
    DMA: 3397*4kB (MC) 26*8kB (RC) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB
         0*512kB 0*1024kB 0*2048kB 0*4096kB = 13796kB

[minchan@kernel.org: change vmalloc gfp and adding comment about gfp]
[sergey.senozhatsky@gmail.com: tweak comments and styles]
Signed-off-by: Kyeongdon Kim <kyeongdon.kim@lge.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/block/zram/zcomp_lz4.c | 23 +++++++++++++++++++++--
 drivers/block/zram/zcomp_lzo.c | 23 +++++++++++++++++++++--
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/drivers/block/zram/zcomp_lz4.c b/drivers/block/zram/zcomp_lz4.c
index ee44b51..dd60831 100644
--- a/drivers/block/zram/zcomp_lz4.c
+++ b/drivers/block/zram/zcomp_lz4.c
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lz4.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lz4.h"
 
 static void *zcomp_lz4_create(void)
 {
-	return kzalloc(LZ4_MEM_COMPRESS, GFP_NOIO);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZ4_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZ4_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void zcomp_lz4_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
diff --git a/drivers/block/zram/zcomp_lzo.c b/drivers/block/zram/zcomp_lzo.c
index 683ce04..edc5499 100644
--- a/drivers/block/zram/zcomp_lzo.c
+++ b/drivers/block/zram/zcomp_lzo.c
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lzo.h"
 
 static void *lzo_create(void)
 {
-	return kzalloc(LZO1X_MEM_COMPRESS, GFP_NOIO);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZO1X_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZO1X_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void lzo_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int lzo_compress(const unsigned char *src, unsigned char *dst,
-- 
1.9.1

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#1321310 — [PATCH 3.19.y-ckt 112/210] cifs_dbg() outputs an uninitialized buffer in cifs_readdir()

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Vasily Averin <vvs@virtuozzo.com>

commit 01b9b0b28626db4a47d7f48744d70abca9914ef1 upstream.

In some cases tmp_bug can be not filled in cifs_filldir and stay uninitialized,
therefore its printk with "%s" modifier can leak content of kernelspace memory.
If old content of this buffer does not contain '\0' access bejond end of
allocated object can crash the host.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Steve French <sfrench@localhost.localdomain>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/cifs/readdir.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index c295338..c4be623 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -845,6 +845,7 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
 		 * if buggy server returns . and .. late do we want to
 		 * check for that here?
 		 */
+		*tmp_buf = 0;
 		rc = cifs_filldir(current_entry, file, ctx,
 				  tmp_buf, max_len);
 		if (rc) {
-- 
1.9.1

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#1321311 — [PATCH 3.19.y-ckt 120/210] mm: soft-offline: check return value in second __get_any_page() call

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

commit d96b339f453997f2f08c52da3f41423be48c978f upstream.

I saw the following BUG_ON triggered in a testcase where a process calls
madvise(MADV_SOFT_OFFLINE) on thps, along with a background process that
calls migratepages command repeatedly (doing ping-pong among different
NUMA nodes) for the first process:

   Soft offlining page 0x60000 at 0x700000600000
   __get_any_page: 0x60000 free buddy page
   page:ffffea0001800000 count:0 mapcount:-127 mapping:          (null) index:0x1
   flags: 0x1fffc0000000000()
   page dumped because: VM_BUG_ON_PAGE(atomic_read(&page->_count) == 0)
   ------------[ cut here ]------------
   kernel BUG at /src/linux-dev/include/linux/mm.h:342!
   invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC
   Modules linked in: cfg80211 rfkill crc32c_intel serio_raw virtio_balloon i2c_piix4 virtio_blk virtio_net ata_generic pata_acpi
   CPU: 3 PID: 3035 Comm: test_alloc_gene Tainted: G           O    4.4.0-rc8-v4.4-rc8-160107-1501-00000-rc8+ #74
   Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
   task: ffff88007c63d5c0 ti: ffff88007c210000 task.ti: ffff88007c210000
   RIP: 0010:[<ffffffff8118998c>]  [<ffffffff8118998c>] put_page+0x5c/0x60
   RSP: 0018:ffff88007c213e00  EFLAGS: 00010246
   Call Trace:
     put_hwpoison_page+0x4e/0x80
     soft_offline_page+0x501/0x520
     SyS_madvise+0x6bc/0x6f0
     entry_SYSCALL_64_fastpath+0x12/0x6a
   Code: 8b fc ff ff 5b 5d c3 48 89 df e8 b0 fa ff ff 48 89 df 31 f6 e8 c6 7d ff ff 5b 5d c3 48 c7 c6 08 54 a2 81 48 89 df e8 a4 c5 01 00 <0f> 0b 66 90 66 66 66 66 90 55 48 89 e5 41 55 41 54 53 48 8b 47
   RIP  [<ffffffff8118998c>] put_page+0x5c/0x60
    RSP <ffff88007c213e00>

The root cause resides in get_any_page() which retries to get a refcount
of the page to be soft-offlined.  This function calls
put_hwpoison_page(), expecting that the target page is putback to LRU
list.  But it can be also freed to buddy.  So the second check need to
care about such case.

Fixes: af8fae7c0886 ("mm/memory-failure.c: clean up soft_offline_page()")
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 mm/memory-failure.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 1e2f7ff..22d4ab4 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1518,7 +1518,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
 		 * Did it turn free?
 		 */
 		ret = __get_any_page(page, pfn, 0);
-		if (!PageLRU(page)) {
+		if (ret == 1 && !PageLRU(page)) {
 			/* Drop page reference which is from __get_any_page() */
 			put_page(page);
 			pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n",
-- 
1.9.1

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#1321312 — [PATCH 3.19.y-ckt 102/210] drm/i915: intel_hpd_init(): Fix suspend/resume reprobing

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Lyude <cpaul@redhat.com>

commit 2dc2f761dea65069485110d24eaa5b0d5d808b07 upstream.

This fixes reprobing of display connectors on resume.  After some
talking with danvet on IRC, I learned that calling
drm_helper_hpd_irq_event() does actually trigger a full reprobe of each
connector's status. It turns out this is the actual reason reprobing on
resume hasn't been working (this was observed on a T440s):

	- We call hpd_init()
	- We check each connector for a couple of things before marking
	  connector->polled with DRM_CONNECTOR_POLL_HPD, one of which is an
	  active encoder. Of course, a disconnected port won't have an
	  active encoder, so we don't add the flag to any of the
	  connectors.
	- We call drm_helper_hpd_irq_event()
	- drm_helper_irq_event() checks each connector for the
	  DRM_CONNECTOR_POLL_HPD flag. The only one that has it is eDP-1,
	  so we skip reprobing each connector except that one.

In addition, we also now avoid setting connector->polled to
DRM_CONNECTOR_POLL_HPD for MST connectors, since their reprobing is
handled by the mst helpers. This is probably what was originally
intended to happen here.

Changes since V1:
* Use the explanation of the issue as the commit message instead
* Change the title of the commit, since this does more then just stop a
  check for an encoder now
* Add "Fixes" line for the patch that introduced this regression
* Don't enable DRM_CONNECTOR_POLL_HPD for mst connectors

Changes since V2:
* Put patch changelog above Signed-off-by
* Follow Daniel Vetter's suggestion for making the code here a bit more
  legible

Fixes: 0e32b39ceed6 ("drm/i915: add DP 1.2 MST support (v0.7)")
Signed-off-by: Lyude <cpaul@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452181408-14777-1-git-send-email-cpaul@redhat.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 07c519134417d92c2e1a536e2b66d4ffff4b3be0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 247cc18..2c86e0a 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -4478,9 +4478,14 @@ void intel_hpd_init(struct drm_i915_private *dev_priv)
 	list_for_each_entry(connector, &mode_config->connector_list, head) {
 		struct intel_connector *intel_connector = to_intel_connector(connector);
 		connector->polled = intel_connector->polled;
-		if (connector->encoder && !connector->polled && I915_HAS_HOTPLUG(dev) && intel_connector->encoder->hpd_pin > HPD_NONE)
-			connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+		/* MST has a dynamic intel_connector->encoder and it's reprobing
+		 * is all handled by the MST helpers. */
 		if (intel_connector->mst_port)
+			continue;
+
+		if (!connector->polled && I915_HAS_HOTPLUG(dev) &&
+		    intel_connector->encoder->hpd_pin > HPD_NONE)
 			connector->polled = DRM_CONNECTOR_POLL_HPD;
 	}
 
-- 
1.9.1

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#1321313 — [PATCH 3.19.y-ckt 096/210] virtio_balloon: fix race between migration and ballooning

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Minchan Kim <minchan@kernel.org>

commit 21ea9fb69e7c4b1b1559c3e410943d3ff248ffcb upstream.

In balloon_page_dequeue, pages_lock should cover the loop
(ie, list_for_each_entry_safe). Otherwise, the cursor page could
be isolated by compaction and then list_del by isolation could
poison the page->lru.{prev,next} so the loop finally could
access wrong address like this. This patch fixes the bug.

general protection fault: 0000 [#1] SMP
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 2 PID: 82 Comm: vballoon Not tainted 4.4.0-rc5-mm1-access_bit+ #1906
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff8800a7ff0000 ti: ffff8800a7fec000 task.ti: ffff8800a7fec000
RIP: 0010:[<ffffffff8115e754>]  [<ffffffff8115e754>] balloon_page_dequeue+0x54/0x130
RSP: 0018:ffff8800a7fefdc0  EFLAGS: 00010246
RAX: ffff88013fff9a70 RBX: ffffea000056fe00 RCX: 0000000000002b7d
RDX: ffff88013fff9a70 RSI: ffffea000056fe00 RDI: ffff88013fff9a68
RBP: ffff8800a7fefde8 R08: ffffea000056fda0 R09: 0000000000000000
R10: ffff8800a7fefd90 R11: 0000000000000001 R12: dead0000000000e0
R13: ffffea000056fe20 R14: ffff880138809070 R15: ffff880138809060
FS:  0000000000000000(0000) GS:ffff88013fc40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f229c10e000 CR3: 00000000b8b53000 CR4: 00000000000006a0
Stack:
 0000000000000100 ffff880138809088 ffff880138809000 ffff880138809060
 0000000000000046 ffff8800a7fefe28 ffffffff812c86d3 ffff880138809020
 ffff880138809000 fffffffffff91900 0000000000000100 ffff880138809060
Call Trace:
 [<ffffffff812c86d3>] leak_balloon+0x93/0x1a0
 [<ffffffff812c8bc7>] balloon+0x217/0x2a0
 [<ffffffff8143739e>] ? __schedule+0x31e/0x8b0
 [<ffffffff81078160>] ? abort_exclusive_wait+0xb0/0xb0
 [<ffffffff812c89b0>] ? update_balloon_stats+0xf0/0xf0
 [<ffffffff8105b6e9>] kthread+0xc9/0xe0
 [<ffffffff8105b620>] ? kthread_park+0x60/0x60
 [<ffffffff8143b4af>] ret_from_fork+0x3f/0x70
 [<ffffffff8105b620>] ? kthread_park+0x60/0x60
Code: 8d 60 e0 0f 84 af 00 00 00 48 8b 43 20 a8 01 75 3b 48 89 d8 f0 0f ba 28 00 72 10 48 8b 03 f6 c4 08 75 2f 48 89 df e8 8c 83 f9 ff <49> 8b 44 24 20 4d 8d 6c 24 20 48 83 e8 20 4d 39 f5 74 7a 4c 89
RIP  [<ffffffff8115e754>] balloon_page_dequeue+0x54/0x130
 RSP <ffff8800a7fefdc0>
---[ end trace 43cf28060d708d5f ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled

Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 mm/balloon_compaction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c
index fcad832..b640609 100644
--- a/mm/balloon_compaction.c
+++ b/mm/balloon_compaction.c
@@ -61,6 +61,7 @@ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info)
 	bool dequeued_page;
 
 	dequeued_page = false;
+	spin_lock_irqsave(&b_dev_info->pages_lock, flags);
 	list_for_each_entry_safe(page, tmp, &b_dev_info->pages, lru) {
 		/*
 		 * Block others from accessing the 'page' while we get around
@@ -75,15 +76,14 @@ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info)
 				continue;
 			}
 #endif
-			spin_lock_irqsave(&b_dev_info->pages_lock, flags);
 			balloon_page_delete(page);
 			__count_vm_event(BALLOON_DEFLATE);
-			spin_unlock_irqrestore(&b_dev_info->pages_lock, flags);
 			unlock_page(page);
 			dequeued_page = true;
 			break;
 		}
 	}
+	spin_unlock_irqrestore(&b_dev_info->pages_lock, flags);
 
 	if (!dequeued_page) {
 		/*
-- 
1.9.1

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#1321314 — [PATCH 3.19.y-ckt 104/210] ALSA: timer: Fix double unlink of active_list

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Takashi Iwai <tiwai@suse.de>

commit ee8413b01045c74340aa13ad5bdf905de32be736 upstream.

ALSA timer instance object has a couple of linked lists and they are
unlinked unconditionally at snd_timer_stop().  Meanwhile
snd_timer_interrupt() unlinks it, but it calls list_del() which leaves
the element list itself unchanged.  This ends up with unlinking twice,
and it was caught by syzkaller fuzzer.

The fix is to use list_del_init() variant properly there, too.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/core/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/timer.c b/sound/core/timer.c
index 777a45e..222c549 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -694,7 +694,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
 		} else {
 			ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
 			if (--timer->running)
-				list_del(&ti->active_list);
+				list_del_init(&ti->active_list);
 		}
 		if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
 		    (ti->flags & SNDRV_TIMER_IFLG_FAST))
-- 
1.9.1

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#1321315 — [PATCH 3.19.y-ckt 113/210] m32r: fix m32104ut_defconfig build fail

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>

commit 601f1db653217f205ffa5fb33514b4e1711e56d1 upstream.

The build of m32104ut_defconfig for m32r arch was failing for long long
time with the error:

  ERROR: "memory_start" [fs/udf/udf.ko] undefined!
  ERROR: "memory_end" [fs/udf/udf.ko] undefined!
  ERROR: "memory_end" [drivers/scsi/sg.ko] undefined!
  ERROR: "memory_start" [drivers/scsi/sg.ko] undefined!
  ERROR: "memory_end" [drivers/i2c/i2c-dev.ko] undefined!
  ERROR: "memory_start" [drivers/i2c/i2c-dev.ko] undefined!

As done in other architectures export the symbols to fix the error.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/m32r/kernel/setup.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index 0392112..a5ecef7 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -81,7 +81,10 @@ static struct resource code_resource = {
 };
 
 unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+
 unsigned long memory_end;
+EXPORT_SYMBOL(memory_end);
 
 void __init setup_arch(char **);
 int get_cpuinfo(char *);
-- 
1.9.1

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#1321317 — [PATCH 3.19.y-ckt 115/210] scripts/bloat-o-meter: fix python3 syntax error

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>

commit 72214a24a7677d4c7501eecc9517ed681b5f2db2 upstream.

In Python3+ print is a function so the old syntax is not correct
anymore:

  $ ./scripts/bloat-o-meter vmlinux.o vmlinux.o.old
    File "./scripts/bloat-o-meter", line 61
      print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
                                                                     ^
  SyntaxError: invalid syntax

Fix by calling print as a function.

Tested on python 2.7.11, 3.5.1

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 scripts/bloat-o-meter | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 23e78dc..38b64f4 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -58,8 +58,8 @@ for name in common:
 delta.sort()
 delta.reverse()
 
-print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
-      (add, remove, grow, shrink, up, -down, up-down)
-print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
+print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
+      (add, remove, grow, shrink, up, -down, up-down))
+print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
 for d, n in delta:
-    if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
+    if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
-- 
1.9.1

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#1321318 — [PATCH 3.19.y-ckt 090/210] clocksource/drivers/vt8500: Increase the minimum delta

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Roman Volkov <rvolkov@v1ros.org>

commit f9eccf24615672896dc13251410c3f2f33a14f95 upstream.

The vt8500 clocksource driver declares itself as capable to handle the
minimum delay of 4 cycles by passing the value into
clockevents_config_and_register(). The vt8500_timer_set_next_event()
requires the passed cycles value to be at least 16. The impact is that
userspace hangs in nanosleep() calls with small delay intervals.

This problem is reproducible in Linux 4.2 starting from:
c6eb3f70d448 ('hrtimer: Get rid of hrtimer softirq')

From Russell King, more detailed explanation:

"It's a speciality of the StrongARM/PXA hardware. It takes a certain
number of OSCR cycles for the value written to hit the compare registers.
So, if a very small delta is written (eg, the compare register is written
with a value of OSCR + 1), the OSCR will have incremented past this value
before it hits the underlying hardware. The result is, that you end up
waiting a very long time for the OSCR to wrap before the event fires.

So, we introduce a check in set_next_event() to detect this and return
-ETIME if the calculated delta is too small, which causes the generic
clockevents code to retry after adding the min_delta specified in
clockevents_config_and_register() to the current time value.

min_delta must be sufficient that we don't re-trip the -ETIME check - if
we do, we will return -ETIME, forward the next event time, try to set it,
return -ETIME again, and basically lock the system up. So, min_delta
must be larger than the check inside set_next_event(). A factor of two
was chosen to ensure that this situation would never occur.

The PXA code worked on PXA systems for years, and I'd suggest no one
changes this mechanism without access to a wide range of PXA systems,
otherwise they're risking breakage."

Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Roman Volkov <rvolkov@v1ros.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/clocksource/vt8500_timer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c
index 1098ed3..dc45ddb 100644
--- a/drivers/clocksource/vt8500_timer.c
+++ b/drivers/clocksource/vt8500_timer.c
@@ -50,6 +50,8 @@
 
 #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
 
+#define MIN_OSCR_DELTA		16
+
 static void __iomem *regbase;
 
 static cycle_t vt8500_timer_read(struct clocksource *cs)
@@ -80,7 +82,7 @@ static int vt8500_timer_set_next_event(unsigned long cycles,
 		cpu_relax();
 	writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL);
 
-	if ((signed)(alarm - clocksource.read(&clocksource)) <= 16)
+	if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA)
 		return -ETIME;
 
 	writel(1, regbase + TIMER_IER_VAL);
@@ -160,7 +162,7 @@ static void __init vt8500_timer_init(struct device_node *np)
 		pr_err("%s: setup_irq failed for %s\n", __func__,
 							clockevent.name);
 	clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ,
-					4, 0xf0000000);
+					MIN_OSCR_DELTA * 2, 0xf0000000);
 }
 
 CLOCKSOURCE_OF_DECLARE(vt8500, "via,vt8500-timer", vt8500_timer_init);
-- 
1.9.1

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#1321319 — [PATCH 3.19.y-ckt 106/210] dmaengine: dw: fix cyclic transfer callbacks

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Mans Rullgard <mans@mansr.com>

commit 2895b2cad6e7a95104cf396e5330054453382ae1 upstream.

Cyclic transfer callbacks rely on block completion interrupts which were
disabled in commit ff7b05f29fd4 ("dmaengine/dw_dmac: Don't handle block
interrupts").  This re-enables block interrupts so the cyclic callbacks
can work.  Other transfer types are not affected as they set the INT_EN
bit only on the last block.

Fixes: ff7b05f29fd4 ("dmaengine/dw_dmac: Don't handle block interrupts")
Signed-off-by: Mans Rullgard <mans@mansr.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/dma/dw/core.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index c90f63b..272341b 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -149,6 +149,7 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
 
 	/* Enable interrupts */
 	channel_set_bit(dw, MASK.XFER, dwc->mask);
+	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
 	channel_set_bit(dw, MASK.ERROR, dwc->mask);
 
 	dwc->initialized = true;
@@ -528,16 +529,17 @@ EXPORT_SYMBOL(dw_dma_get_dst_addr);
 
 /* Called with dwc->lock held and all DMAC interrupts disabled */
 static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
-		u32 status_err, u32 status_xfer)
+		u32 status_block, u32 status_err, u32 status_xfer)
 {
 	unsigned long flags;
 
-	if (dwc->mask) {
+	if (status_block & dwc->mask) {
 		void (*callback)(void *param);
 		void *callback_param;
 
 		dev_vdbg(chan2dev(&dwc->chan), "new cyclic period llp 0x%08x\n",
 				channel_readl(dwc, LLP));
+		dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 
 		callback = dwc->cdesc->period_callback;
 		callback_param = dwc->cdesc->period_callback_param;
@@ -569,6 +571,7 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
 		channel_writel(dwc, CTL_LO, 0);
 		channel_writel(dwc, CTL_HI, 0);
 
+		dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 		dma_writel(dw, CLEAR.ERROR, dwc->mask);
 		dma_writel(dw, CLEAR.XFER, dwc->mask);
 
@@ -585,10 +588,12 @@ static void dw_dma_tasklet(unsigned long data)
 {
 	struct dw_dma *dw = (struct dw_dma *)data;
 	struct dw_dma_chan *dwc;
+	u32 status_block;
 	u32 status_xfer;
 	u32 status_err;
 	int i;
 
+	status_block = dma_readl(dw, RAW.BLOCK);
 	status_xfer = dma_readl(dw, RAW.XFER);
 	status_err = dma_readl(dw, RAW.ERROR);
 
@@ -597,7 +602,8 @@ static void dw_dma_tasklet(unsigned long data)
 	for (i = 0; i < dw->dma.chancnt; i++) {
 		dwc = &dw->chan[i];
 		if (test_bit(DW_DMA_IS_CYCLIC, &dwc->flags))
-			dwc_handle_cyclic(dw, dwc, status_err, status_xfer);
+			dwc_handle_cyclic(dw, dwc, status_block, status_err,
+					status_xfer);
 		else if (status_err & (1 << i))
 			dwc_handle_error(dw, dwc);
 		else if (status_xfer & (1 << i))
@@ -608,6 +614,7 @@ static void dw_dma_tasklet(unsigned long data)
 	 * Re-enable interrupts.
 	 */
 	channel_set_bit(dw, MASK.XFER, dw->all_chan_mask);
+	channel_set_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask);
 }
 
@@ -627,6 +634,7 @@ static irqreturn_t dw_dma_interrupt(int irq, void *dev_id)
 	 * softirq handler.
 	 */
 	channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask);
+	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask);
 
 	status = dma_readl(dw, STATUS_INT);
@@ -637,6 +645,7 @@ static irqreturn_t dw_dma_interrupt(int irq, void *dev_id)
 
 		/* Try to recover */
 		channel_clear_bit(dw, MASK.XFER, (1 << 8) - 1);
+		channel_clear_bit(dw, MASK.BLOCK, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.SRC_TRAN, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.DST_TRAN, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.ERROR, (1 << 8) - 1);
@@ -1104,6 +1113,7 @@ static void dw_dma_off(struct dw_dma *dw)
 	dma_writel(dw, CFG, 0);
 
 	channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask);
+	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.SRC_TRAN, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.DST_TRAN, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask);
@@ -1209,6 +1219,7 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
 
 	/* Disable interrupts */
 	channel_clear_bit(dw, MASK.XFER, dwc->mask);
+	channel_clear_bit(dw, MASK.BLOCK, dwc->mask);
 	channel_clear_bit(dw, MASK.ERROR, dwc->mask);
 
 	spin_unlock_irqrestore(&dwc->lock, flags);
@@ -1451,6 +1462,7 @@ void dw_dma_cyclic_free(struct dma_chan *chan)
 
 	dwc_chan_disable(dw, dwc);
 
+	dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 	dma_writel(dw, CLEAR.ERROR, dwc->mask);
 	dma_writel(dw, CLEAR.XFER, dwc->mask);
 
@@ -1540,9 +1552,6 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata)
 	/* Force dma off, just in case */
 	dw_dma_off(dw);
 
-	/* Disable BLOCK interrupts as well */
-	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
-
 	/* Create a pool of consistent memory blocks for hardware descriptors */
 	dw->desc_pool = dmam_pool_create("dw_dmac_desc_pool", chip->dev,
 					 sizeof(struct dw_desc), 4, 0);
-- 
1.9.1

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#1321320 — [PATCH 3.19.y-ckt 094/210] ALSA: seq: Fix race at timer setup and close

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Takashi Iwai <tiwai@suse.de>

commit 3567eb6af614dac436c4b16a8d426f9faed639b3 upstream.

ALSA sequencer code has an open race between the timer setup ioctl and
the close of the client.  This was triggered by syzkaller fuzzer, and
a use-after-free was caught there as a result.

This patch papers over it by adding a proper queue->timer_mutex lock
around the timer-related calls in the relevant code path.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/core/seq/seq_queue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index aad4878..52defd8 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -144,8 +144,10 @@ static struct snd_seq_queue *queue_new(int owner, int locked)
 static void queue_delete(struct snd_seq_queue *q)
 {
 	/* stop and release the timer */
+	mutex_lock(&q->timer_mutex);
 	snd_seq_timer_stop(q->timer);
 	snd_seq_timer_close(q);
+	mutex_unlock(&q->timer_mutex);
 	/* wait until access free */
 	snd_use_lock_sync(&q->use_lock);
 	/* release resources... */
-- 
1.9.1

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#1321321 — [PATCH 3.19.y-ckt 128/210] crypto: af_alg - Add nokey compatibility path

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Herbert Xu <herbert@gondor.apana.org.au>

commit 37766586c965d63758ad542325a96d5384f4a8c9 upstream.

This patch adds a compatibility path to support old applications
that do acept(2) before setkey.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 crypto/af_alg.c         | 13 ++++++++++++-
 include/crypto/if_alg.h |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 4898294..9174cb9 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -76,6 +76,8 @@ int af_alg_register_type(const struct af_alg_type *type)
 		goto unlock;
 
 	type->ops->owner = THIS_MODULE;
+	if (type->ops_nokey)
+		type->ops_nokey->owner = THIS_MODULE;
 	node->type = type;
 	list_add(&node->list, &alg_types);
 	err = 0;
@@ -257,6 +259,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	const struct af_alg_type *type;
 	struct sock *sk2;
 	int err;
+	bool nokey;
 
 	lock_sock(sk);
 	type = ask->type;
@@ -275,12 +278,17 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	security_sk_clone(sk, sk2);
 
 	err = type->accept(ask->private, sk2);
+
+	nokey = err == -ENOKEY;
+	if (nokey && type->accept_nokey)
+		err = type->accept_nokey(ask->private, sk2);
+
 	if (err)
 		goto unlock;
 
 	sk2->sk_family = PF_ALG;
 
-	if (!ask->refcnt++)
+	if (nokey || !ask->refcnt++)
 		sock_hold(sk);
 	alg_sk(sk2)->parent = sk;
 	alg_sk(sk2)->type = type;
@@ -288,6 +296,9 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	newsock->ops = type->ops;
 	newsock->state = SS_CONNECTED;
 
+	if (nokey)
+		newsock->ops = type->ops_nokey;
+
 	err = 0;
 
 unlock:
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index f01414e..35d6494 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -52,8 +52,10 @@ struct af_alg_type {
 	void (*release)(void *private);
 	int (*setkey)(void *private, const u8 *key, unsigned int keylen);
 	int (*accept)(void *private, struct sock *sk);
+	int (*accept_nokey)(void *private, struct sock *sk);
 
 	struct proto_ops *ops;
+	struct proto_ops *ops_nokey;
 	struct module *owner;
 	char name[14];
 };
-- 
1.9.1

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#1321323 — [PATCH 3.19.y-ckt 095/210] virtio_balloon: fix race by fill and leak

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Minchan Kim <minchan@kernel.org>

commit f68b992bbb474641881932c61c92dcfa6f5b3689 upstream.

During my compaction-related stuff, I encountered a bug
with ballooning.

With repeated inflating and deflating cycle, guest memory(
ie, cat /proc/meminfo | grep MemTotal) is decreased and
couldn't be recovered.

The reason is balloon_lock doesn't cover release_pages_balloon
so struct virtio_balloon fields could be overwritten by race
of fill_balloon(e,g, vb->*pfns could be critical).

This patch fixes it in my test.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/virtio/virtio_balloon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index b8b7a6c..803f794 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -206,8 +206,8 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num)
 	 */
 	if (vb->num_pfns != 0)
 		tell_host(vb, vb->deflate_vq);
-	mutex_unlock(&vb->balloon_lock);
 	release_pages_by_pfn(vb->pfns, vb->num_pfns);
+	mutex_unlock(&vb->balloon_lock);
 	return num_freed_pages;
 }
 
-- 
1.9.1

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#1321324 — [PATCH 3.19.y-ckt 086/210] x86/boot: Double BOOT_HEAP_SIZE to 64KB

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: "H.J. Lu" <hjl.tools@gmail.com>

commit 8c31902cffc4d716450be549c66a67a8a3dd479c upstream.

When decompressing kernel image during x86 bootup, malloc memory
for ELF program headers may run out of heap space, which leads
to system halt.  This patch doubles BOOT_HEAP_SIZE to 64KB.

Tested with 32-bit kernel which failed to boot without this patch.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/include/asm/boot.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 4fa687a..6b8d6e8 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -27,7 +27,7 @@
 #define BOOT_HEAP_SIZE             0x400000
 #else /* !CONFIG_KERNEL_BZIP2 */
 
-#define BOOT_HEAP_SIZE	0x8000
+#define BOOT_HEAP_SIZE	0x10000
 
 #endif /* !CONFIG_KERNEL_BZIP2 */
 
-- 
1.9.1

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#1321325 — [PATCH 3.19.y-ckt 101/210] ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Takashi Iwai <tiwai@suse.de>

commit c4a359a0049f2e17b012b31e801e96566f6391e5 upstream.

The commit [da6d276957ea: ALSA: usb-audio: Add resume support for
Native Instruments controls] brought a regression where the Native
Instrument audio devices don't get the correct value at update due to
the missing shift at writing.  This patch addresses it.

Fixes: da6d276957ea ('ALSA: usb-audio: Add resume support for Native Instruments controls')
Reported-and-tested-by: Owen Williams <owilliams@mixxx.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/usb/mixer_quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 48a7450..db9547d 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -803,7 +803,7 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
 		return 0;
 
 	kcontrol->private_value &= ~(0xff << 24);
-	kcontrol->private_value |= newval;
+	kcontrol->private_value |= (unsigned int)newval << 24;
 	err = snd_ni_update_cur_val(list);
 	return err < 0 ? err : 1;
 }
-- 
1.9.1

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#1321326 — [PATCH 3.19.y-ckt 097/210] parisc: Fix __ARCH_SI_PREAMBLE_SIZE

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Helge Deller <deller@gmx.de>

commit e60fc5aa608eb38b47ba4ee058f306f739eb70a0 upstream.

On a 64bit kernel build the compiler aligns the _sifields union in the
struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define
compensates for this alignment and thus fixes the wait testcase of the
strace package.

The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that
_sigchld.si_stime variable is missed to be copied and thus after a
copy_siginfo() will have uninitialized values.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index d703472..1c75565 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -1,6 +1,10 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
+#if defined(__LP64__)
+#define __ARCH_SI_PREAMBLE_SIZE   (4 * sizeof(int))
+#endif
+
 #include <asm-generic/siginfo.h>
 
 #undef NSIGTRAP
-- 
1.9.1

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#1321327 — [PATCH 3.19.y-ckt 099/210] powerpc/module: Handle R_PPC64_ENTRY relocations

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Ulrich Weigand <ulrich.weigand@de.ibm.com>

commit a61674bdfc7c2bf909c4010699607b62b69b7bec upstream.

GCC 6 will include changes to generated code with -mcmodel=large,
which is used to build kernel modules on powerpc64le.  This was
necessary because the large model is supposed to allow arbitrary
sizes and locations of the code and data sections, but the ELFv2
global entry point prolog still made the unconditional assumption
that the TOC associated with any particular function can be found
within 2 GB of the function entry point:

func:
	addis r2,r12,(.TOC.-func)@ha
	addi  r2,r2,(.TOC.-func)@l
	.localentry func, .-func

To remove this assumption, GCC will now generate instead this global
entry point prolog sequence when using -mcmodel=large:

	.quad .TOC.-func
func:
	.reloc ., R_PPC64_ENTRY
	ld    r2, -8(r12)
	add   r2, r2, r12
	.localentry func, .-func

The new .reloc triggers an optimization in the linker that will
replace this new prolog with the original code (see above) if the
linker determines that the distance between .TOC. and func is in
range after all.

Since this new relocation is now present in module object files,
the kernel module loader is required to handle them too.  This
patch adds support for the new relocation and implements the
same optimization done by the GNU linker.

Signed-off-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/powerpc/include/uapi/asm/elf.h |  2 ++
 arch/powerpc/kernel/module_64.c     | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h
index 59dad11..c2d21d1 100644
--- a/arch/powerpc/include/uapi/asm/elf.h
+++ b/arch/powerpc/include/uapi/asm/elf.h
@@ -295,6 +295,8 @@ do {									\
 #define R_PPC64_TLSLD		108
 #define R_PPC64_TOCSAVE		109
 
+#define R_PPC64_ENTRY		118
+
 #define R_PPC64_REL16		249
 #define R_PPC64_REL16_LO	250
 #define R_PPC64_REL16_HI	251
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 6838451..59663af 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -635,6 +635,33 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 			 */
 			break;
 
+		case R_PPC64_ENTRY:
+			/*
+			 * Optimize ELFv2 large code model entry point if
+			 * the TOC is within 2GB range of current location.
+			 */
+			value = my_r2(sechdrs, me) - (unsigned long)location;
+			if (value + 0x80008000 > 0xffffffff)
+				break;
+			/*
+			 * Check for the large code model prolog sequence:
+		         *	ld r2, ...(r12)
+			 *	add r2, r2, r12
+			 */
+			if ((((uint32_t *)location)[0] & ~0xfffc)
+			    != 0xe84c0000)
+				break;
+			if (((uint32_t *)location)[1] != 0x7c426214)
+				break;
+			/*
+			 * If found, replace it with:
+			 *	addis r2, r12, (.TOC.-func)@ha
+			 *	addi r2, r12, (.TOC.-func)@l
+			 */
+			((uint32_t *)location)[0] = 0x3c4c0000 + PPC_HA(value);
+			((uint32_t *)location)[1] = 0x38420000 + PPC_LO(value);
+			break;
+
 		case R_PPC64_REL16_HA:
 			/* Subtract location pointer */
 			value -= (unsigned long)location;
-- 
1.9.1

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#1321328 — [PATCH 3.19.y-ckt 110/210] cifs: Ratelimit kernel log messages

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Jamie Bainbridge <jamie.bainbridge@gmail.com>

commit ec7147a99e33a9e4abad6fc6e1b40d15df045d53 upstream.

Under some conditions, CIFS can repeatedly call the cifs_dbg() logging
wrapper. If done rapidly enough, the console framebuffer can softlockup
or "rcu_sched self-detected stall". Apply the built-in log ratelimiters
to prevent such hangs.

Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/cifs/cifs_debug.c | 2 +-
 fs/cifs/cifs_debug.h | 9 ++++-----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 7febcf2..50b2684 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -50,7 +50,7 @@ void cifs_vfs_err(const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
-	pr_err("CIFS VFS: %pV", &vaf);
+	pr_err_ratelimited("CIFS VFS: %pV", &vaf);
 
 	va_end(args);
 }
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index f40fbac..66cf0f9 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -51,14 +51,13 @@ __printf(1, 2) void cifs_vfs_err(const char *fmt, ...);
 /* information message: e.g., configuration, major event */
 #define cifs_dbg(type, fmt, ...)					\
 do {									\
-	if (type == FYI) {						\
-		if (cifsFYI & CIFS_INFO) {				\
-			pr_debug("%s: " fmt, __FILE__, ##__VA_ARGS__);	\
-		}							\
+	if (type == FYI && cifsFYI & CIFS_INFO) {			\
+		pr_debug_ratelimited("%s: "				\
+			    fmt, __FILE__, ##__VA_ARGS__);		\
 	} else if (type == VFS) {					\
 		cifs_vfs_err(fmt, ##__VA_ARGS__);			\
 	} else if (type == NOISY && type != 0) {			\
-		pr_debug(fmt, ##__VA_ARGS__);				\
+		pr_debug_ratelimited(fmt, ##__VA_ARGS__);		\
 	}								\
 } while (0)
 
-- 
1.9.1

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#1321329 — [PATCH 3.19.y-ckt 100/210] ALSA: hda - fix the headset mic detection problem for a Dell laptop

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Hui Wang <hui.wang@canonical.com>

commit 0a1f90a982e85f4921bed606a6b41a24f4de2ae1 upstream.

The machine uses codec alc255, and the pin configuration value for
pin 0x14 on this machine is 0x90171130 which is not in the pin quirk
table yet.

BugLink: https://bugs.launchpad.net/bugs/1533461
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/pci/hda/patch_realtek.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 72601dc..65a27f5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5268,6 +5268,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC255_STANDARD_PINS,
 		{0x12, 0x90a60170},
+		{0x14, 0x90171130},
+		{0x21, 0x02211040}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x90a60170},
 		{0x14, 0x90170140},
 		{0x17, 0x40000000},
 		{0x1d, 0x40700001},
-- 
1.9.1

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#1321330 — [PATCH 3.19.y-ckt 091/210] Input: elantech - mark protocols v2 and v3 as semi-mt

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

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

From: Benjamin Tissoires <benjamin.tissoires@redhat.com>

commit 6544a1df11c48c8413071aac3316792e4678fbfb upstream.

When using a protocol v2 or v3 hardware, elantech uses the function
elantech_report_semi_mt_data() to report data. This devices are rather
creepy because if num_finger is 3, (x2,y2) is (0,0). Yes, only one valid
touch is reported.

Anyway, userspace (libinput) is now confused by these (0,0) touches,
and detect them as palm, and rejects them.

Commit 3c0213d17a09 ("Input: elantech - fix semi-mt protocol for v3 HW")
was sufficient enough for xf86-input-synaptics and libinput before it has
palm rejection. Now we need to actually tell libinput that this device is
a semi-mt one and it should not rely on the actual values of the 2 touches.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/input/mouse/elantech.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index ba638b6..40320cb 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1214,7 +1214,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 					     ETP_WMAX_V2, 0, 0);
 		}
-		input_mt_init_slots(dev, 2, 0);
+		input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
 		break;
-- 
1.9.1

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