1. 17 Apr, 2020 14 commits
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 95988fbc
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
      
       - Remove vdso code trying to free unallocated pages.
      
       - Delete the space separator in the __emit_inst macro as it breaks the
         clang integrated assembler.
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Delete the space separator in __emit_inst
        arm64: vdso: don't free unallocated pages
      95988fbc
    • Linus Torvalds's avatar
      Merge tag 'for-linus-5.7-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · d0a4ebe7
      Linus Torvalds authored
      Pull xen update from Juergen Gross:
      
       - a small cleanup patch
      
       - a security fix for a bug in the Xen hypervisor to avoid enabling Xen
         guests to crash dom0 on an unfixed hypervisor.
      
      * tag 'for-linus-5.7-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        arm/xen: make _xen_start_info static
        xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status
      d0a4ebe7
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block · a2286a44
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
      
       - wrap up the init/setup cleanup (Pavel)
      
       - fix some issues around deferral sequences (Pavel)
      
       - fix splice punt check using the wrong struct file member
      
       - apply poll re-arm logic for pollable retry too
      
       - pollable retry should honor cancelation
      
       - fix setup time error handling syzbot reported crash
      
       - restore work state when poll is canceled
      
      * tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
        io_uring: don't count rqs failed after current one
        io_uring: kill already cached timeout.seq_offset
        io_uring: fix cached_sq_head in io_timeout()
        io_uring: only post events in io_poll_remove_all() if we completed some
        io_uring: io_async_task_func() should check and honor cancelation
        io_uring: check for need to re-wait in polled async handling
        io_uring: correct O_NONBLOCK check for splice punt
        io_uring: restore req->work when canceling poll request
        io_uring: move all request init code in one place
        io_uring: keep all sqe->flags in req->flags
        io_uring: early submission req fail code
        io_uring: track mm through current->mm
        io_uring: remove obsolete @mm_fault
      a2286a44
    • Linus Torvalds's avatar
      Merge tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block · bf9196d5
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - Fix for a driver tag leak in error handling (John)
      
       - Remove now defunct Kconfig selection from dasd (Stefan)
      
       - blk-wbt trace fiexs (Tommi)
      
      * tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
        blk-wbt: Drop needless newlines from tracepoint format strings
        blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals
        s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig
        blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget
      bf9196d5
    • Linus Torvalds's avatar
      Merge tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block · 2acbb9e6
      Linus Torvalds authored
      Pull libata fixlet from Jens Axboe:
       "Add yet another Comet Lake PCI ID for ahci"
      
      * tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
        ahci: Add Intel Comet Lake PCH-U PCI ID
      2acbb9e6
    • Linus Torvalds's avatar
      Merge tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · c5304dd5
      Linus Torvalds authored
      Pull btrfs fix from David Sterba:
       "A regression fix for a warning caused by running balance and snapshot
        creation in parallel"
      
      * tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: fix setting last_trans for reloc roots
      c5304dd5
    • Linus Torvalds's avatar
      Merge tag 'pm-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 5a32fe48
      Linus Torvalds authored
      Pull power management update from Rafael Wysocki:
       "Allow the operating performance points (OPP) core to be used in the
        case when the same driver is used on different platforms, some of
        which have an OPP table and some of which have a clock node (Rajendra
        Nayak)"
      
      * tag 'pm-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        opp: Manage empty OPP tables with clk handle
      5a32fe48
    • Linus Torvalds's avatar
      Merge tag 'sound-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · c8a6552f
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "One significant regression fix is for HD-audio buffer preallocation.
        In 5.6 it was set to non-prompt for x86 and forced to 0, but this
        turned out to be problematic for some applications, hence it gets
        reverted. Distros would need to restore CONFIG_SND_HDA_PREALLOC_SIZE
        value to the earlier values they've used in the past.
      
        Other than that, we've received quite a few small fixes for HD-audio
        and USB-audio. Most of them are for dealing with the broken TRX40
        mobos and the runtime PM without HD-audio codecs"
      
      * tag 'sound-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda: call runtime_allow() for all hda controllers
        ALSA: hda: Allow setting preallocation again for x86
        ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
        ALSA: hda: Skip controller resume if not needed
        ALSA: hda: Keep the controller initialization even if no codecs found
        ALSA: hda: Release resources at error in delayed probe
        ALSA: hda: Honor PM disablement in PM freeze and thaw_noirq ops
        ALSA: hda: Don't release card at firmware loading error
        ALSA: usb-audio: Check mapping at creating connector controls, too
        ALSA: usb-audio: Don't create jack controls for PCM terminals
        ALSA: usb-audio: Don't override ignore_ctl_error value from the map
        ALSA: usb-audio: Filter error from connector kctl ops, too
        ALSA: hda/realtek - Enable the headset mic on Asus FX505DT
        ALSA: ctxfi: Remove unnecessary cast in kfree
      c8a6552f
    • Tommi Rantala's avatar
      blk-wbt: Drop needless newlines from tracepoint format strings · 3f22037d
      Tommi Rantala authored
      Drop needless newlines from tracepoint format strings, they only add
      empty lines to perf tracing output.
      Signed-off-by: default avatarTommi Rantala <tommi.t.rantala@nokia.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      3f22037d
    • Tommi Rantala's avatar
      blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals · 3a89c25d
      Tommi Rantala authored
      Use tracepoint_string() for string literals that are used in the
      wbt_step tracepoint, so that userspace tools can display the string
      content.
      Signed-off-by: default avatarTommi Rantala <tommi.t.rantala@nokia.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      3a89c25d
    • Stefan Haberland's avatar
      s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig · 3dceecfa
      Stefan Haberland authored
      CONFIG_IOSCHED_DEADLINE was removed with
      commit f382fb0b ("block: remove legacy IO schedulers")
      
      and setting of the scheduler was removed with
      commit a5fd8ddc ("s390/dasd: remove setting of scheduler from driver").
      
      So get rid of the select.
      Reported-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Signed-off-by: default avatarStefan Haberland <sth@linux.ibm.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      3dceecfa
    • Josef Bacik's avatar
      btrfs: fix setting last_trans for reloc roots · aec7db3b
      Josef Bacik authored
      I made a mistake with my previous fix, I assumed that we didn't need to
      mess with the reloc roots once we were out of the part of relocation where
      we are actually moving the extents.
      
      The subtle thing that I missed is that btrfs_init_reloc_root() also
      updates the last_trans for the reloc root when we do
      btrfs_record_root_in_trans() for the corresponding fs_root.  I've added a
      comment to make sure future me doesn't make this mistake again.
      
      This showed up as a WARN_ON() in btrfs_copy_root() because our
      last_trans didn't == the current transid.  This could happen if we
      snapshotted a fs root with a reloc root after we set
      rc->create_reloc_tree = 0, but before we actually merge the reloc root.
      
      Worth mentioning that the regression produced the following warning
      when running snapshot creation and balance in parallel:
      
        BTRFS info (device sdc): relocating block group 30408704 flags metadata|dup
        ------------[ cut here ]------------
        WARNING: CPU: 0 PID: 12823 at fs/btrfs/ctree.c:191 btrfs_copy_root+0x26f/0x430 [btrfs]
        CPU: 0 PID: 12823 Comm: btrfs Tainted: G        W 5.6.0-rc7-btrfs-next-58 #1
        Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
        RIP: 0010:btrfs_copy_root+0x26f/0x430 [btrfs]
        RSP: 0018:ffffb96e044279b8 EFLAGS: 00010202
        RAX: 0000000000000009 RBX: ffff9da70bf61000 RCX: ffffb96e04427a48
        RDX: ffff9da733a770c8 RSI: ffff9da70bf61000 RDI: ffff9da694163818
        RBP: ffff9da733a770c8 R08: fffffffffffffff8 R09: 0000000000000002
        R10: ffffb96e044279a0 R11: 0000000000000000 R12: ffff9da694163818
        R13: fffffffffffffff8 R14: ffff9da6d2512000 R15: ffff9da714cdac00
        FS:  00007fdeacf328c0(0000) GS:ffff9da735e00000(0000) knlGS:0000000000000000
        CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
        CR2: 000055a2a5b8a118 CR3: 00000001eed78002 CR4: 00000000003606f0
        DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
        DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
        Call Trace:
         ? create_reloc_root+0x49/0x2b0 [btrfs]
         ? kmem_cache_alloc_trace+0xe5/0x200
         create_reloc_root+0x8b/0x2b0 [btrfs]
         btrfs_reloc_post_snapshot+0x96/0x5b0 [btrfs]
         create_pending_snapshot+0x610/0x1010 [btrfs]
         create_pending_snapshots+0xa8/0xd0 [btrfs]
         btrfs_commit_transaction+0x4c7/0xc50 [btrfs]
         ? btrfs_mksubvol+0x3cd/0x560 [btrfs]
         btrfs_mksubvol+0x455/0x560 [btrfs]
         __btrfs_ioctl_snap_create+0x15f/0x190 [btrfs]
         btrfs_ioctl_snap_create_v2+0xa4/0xf0 [btrfs]
         ? mem_cgroup_commit_charge+0x6e/0x540
         btrfs_ioctl+0x12d8/0x3760 [btrfs]
         ? do_raw_spin_unlock+0x49/0xc0
         ? _raw_spin_unlock+0x29/0x40
         ? __handle_mm_fault+0x11b3/0x14b0
         ? ksys_ioctl+0x92/0xb0
         ksys_ioctl+0x92/0xb0
         ? trace_hardirqs_off_thunk+0x1a/0x1c
         __x64_sys_ioctl+0x16/0x20
         do_syscall_64+0x5c/0x280
         entry_SYSCALL_64_after_hwframe+0x49/0xbe
        RIP: 0033:0x7fdeabd3bdd7
      
      Fixes: 2abc726a ("btrfs: do not init a reloc root if we aren't relocating")
      Reviewed-by: default avatarFilipe Manana <fdmanana@suse.com>
      Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
      Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
      aec7db3b
    • Jason Yan's avatar
      arm/xen: make _xen_start_info static · 74f4c438
      Jason Yan authored
      Fix the following sparse warning:
      
      arch/arm64/xen/../../arm/xen/enlighten.c:39:19: warning: symbol
      '_xen_start_info' was not declared. Should it be static?
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarJason Yan <yanaijie@huawei.com>
      Reviewed-by: default avatarStefano Stabellini <sstabellini@kernel.org>
      Link: https://lore.kernel.org/r/20200415084853.5808-1-yanaijie@huawei.comSigned-off-by: default avatarJuergen Gross <jgross@suse.com>
      74f4c438
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-5.7-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 7a56db02
      Linus Torvalds authored
      Pull NFS client bugfix from Trond Myklebust:
       "Fix an ABBA spinlock issue in pnfs_update_layout()"
      
      * tag 'nfs-for-5.7-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        NFS: Fix an ABBA spinlock issue in pnfs_update_layout()
      7a56db02
  2. 16 Apr, 2020 13 commits
    • Linus Torvalds's avatar
      Merge tag 'tag-chrome-platform-fixes-for-v5.7-rc2' of... · 2fcd8014
      Linus Torvalds authored
      Merge tag 'tag-chrome-platform-fixes-for-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
      
      Pull chrome-platform fixes from Benson Leung:
       "Two small fixes for cros_ec_sensorhub_ring.c, addressing issues
        introduced in the cros_ec_sensorhub FIFO support commit"
      
      * tag 'tag-chrome-platform-fixes-for-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
        platform/chrome: cros_ec_sensorhub: Add missing '\n' in log messages
        platform/chrome: cros_ec_sensorhub: Off by one in cros_sensorhub_send_sample()
      2fcd8014
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · c8372665
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Disable RISCV BPF JIT builds when !MMU, from Björn Töpel.
      
       2) nf_tables leaves dangling pointer after free, fix from Eric Dumazet.
      
       3) Out of boundary write in __xsk_rcv_memcpy(), fix from Li RongQing.
      
       4) Adjust icmp6 message source address selection when routes have a
          preferred source address set, from Tim Stallard.
      
       5) Be sure to validate HSR protocol version when creating new links,
          from Taehee Yoo.
      
       6) CAP_NET_ADMIN should be sufficient to manage l2tp tunnels even in
          non-initial namespaces, from Michael Weiß.
      
       7) Missing release firmware call in mlx5, from Eran Ben Elisha.
      
       8) Fix variable type in macsec_changelink(), caught by KASAN. Fix from
          Taehee Yoo.
      
       9) Fix pause frame negotiation in marvell phy driver, from Clemens
          Gruber.
      
      10) Record RX queue early enough in tun packet paths such that XDP
          programs will see the correct RX queue index, from Gilberto Bertin.
      
      11) Fix double unlock in mptcp, from Florian Westphal.
      
      12) Fix offset overflow in ARM bpf JIT, from Luke Nelson.
      
      13) marvell10g needs to soft reset PHY when coming out of low power
          mode, from Russell King.
      
      14) Fix MTU setting regression in stmmac for some chip types, from
          Florian Fainelli.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
        amd-xgbe: Use __napi_schedule() in BH context
        mISDN: make dmril and dmrim static
        net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes
        net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode
        tipc: fix incorrect increasing of link window
        Documentation: Fix tcp_challenge_ack_limit default value
        net: tulip: make early_486_chipsets static
        dt-bindings: net: ethernet-phy: add desciption for ethernet-phy-id1234.d400
        ipv6: remove redundant assignment to variable err
        net/rds: Use ERR_PTR for rds_message_alloc_sgs()
        net: mscc: ocelot: fix untagged packet drops when enslaving to vlan aware bridge
        selftests/bpf: Check for correct program attach/detach in xdp_attach test
        libbpf: Fix type of old_fd in bpf_xdp_set_link_opts
        libbpf: Always specify expected_attach_type on program load if supported
        xsk: Add missing check on user supplied headroom size
        mac80211: fix channel switch trigger from unknown mesh peer
        mac80211: fix race in ieee80211_register_hw()
        net: marvell10g: soft-reset the PHY when coming out of low power
        net: marvell10g: report firmware version
        net/cxgb4: Check the return from t4_query_params properly
        ...
      c8372665
    • Sebastian Andrzej Siewior's avatar
      amd-xgbe: Use __napi_schedule() in BH context · d518691c
      Sebastian Andrzej Siewior authored
      The driver uses __napi_schedule_irqoff() which is fine as long as it is
      invoked with disabled interrupts by everybody. Since the commit
      mentioned below the driver may invoke xgbe_isr_task() in tasklet/softirq
      context. This may lead to list corruption if another driver uses
      __napi_schedule_irqoff() in IRQ context.
      
      Use __napi_schedule() which safe to use from IRQ and softirq context.
      
      Fixes: 85b85c85 ("amd-xgbe: Re-issue interrupt if interrupt status not cleared")
      Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
      Acked-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d518691c
    • Jason Yan's avatar
      mISDN: make dmril and dmrim static · 05eab4f3
      Jason Yan authored
      Fix the following sparse warning:
      
      drivers/isdn/hardware/mISDN/mISDNisar.c:746:12: warning: symbol 'dmril'
      was not declared. Should it be static?
      drivers/isdn/hardware/mISDN/mISDNisar.c:749:12: warning: symbol 'dmrim'
      was not declared. Should it be static?
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarJason Yan <yanaijie@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      05eab4f3
    • Florian Fainelli's avatar
      net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes · 806fd188
      Florian Fainelli authored
      After commit bfcb8132 ("net: dsa:
      configure the MTU for switch ports") my Lamobo R1 platform which uses
      an allwinner,sun7i-a20-gmac compatible Ethernet MAC started to fail
      by rejecting a MTU of 1536. The reason for that is that the DMA
      capabilities are not readable on this version of the IP, and there
      is also no 'tx-fifo-depth' property being provided in Device Tree. The
      property is documented as optional, and is not provided.
      
      Chen-Yu indicated that the FIFO sizes are 4KB for TX and 16KB for RX, so
      provide these values through platform data as an immediate fix until
      various Device Tree sources get updated accordingly.
      
      Fixes: eaf4fac4 ("net: stmmac: Do not accept invalid MTU values")
      Suggested-by: default avatarChen-Yu Tsai <wens@csie.org>
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Acked-by: default avatarChen-Yu Tsai <wens@csie.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      806fd188
    • DENG Qingfang's avatar
      net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode · e045124e
      DENG Qingfang authored
      In VLAN-unaware mode, the Egress Tag (EG_TAG) field in Port VLAN
      Control register must be set to Consistent to let tagged frames pass
      through as is, otherwise their tags will be stripped.
      
      Fixes: 83163f7d ("net: dsa: mediatek: add VLAN support for MT7530")
      Signed-off-by: default avatarDENG Qingfang <dqfext@gmail.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Tested-by: default avatarRené van Dorst <opensource@vdorst.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e045124e
    • Linus Torvalds's avatar
      Merge tag 'selinux-pr-20200416' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux · 9786cab6
      Linus Torvalds authored
      Pull SELinux fix from Paul Moore:
       "One small SELinux fix to ensure we cleanup properly on an error
        condition"
      
      * tag 'selinux-pr-20200416' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
        selinux: free str on error in str_read()
      9786cab6
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-5.7-rc2' of git://github.com/ceph/ceph-client · 3fa84bf9
      Linus Torvalds authored
      Pull ceph fixes from Ilya Dryomov:
      
       - a set of patches for a deadlock on "rbd map" error path
      
       - a fix for invalid pointer dereference and uninitialized variable use
         on asynchronous create and unlink error paths.
      
      * tag 'ceph-for-5.7-rc2' of git://github.com/ceph/ceph-client:
        ceph: fix potential bad pointer deref in async dirops cb's
        rbd: don't mess with a page vector in rbd_notify_op_lock()
        rbd: don't test rbd_dev->opts in rbd_dev_image_release()
        rbd: call rbd_dev_unprobe() after unwatching and flushing notifies
        rbd: avoid a deadlock on header_rwsem when flushing notifies
      3fa84bf9
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 4ede1259
      Linus Torvalds authored
      Pull tracing fix from Steven Rostedt:
       "This fixes a small race between allocating a snapshot buffer and
        setting the snapshot trigger.
      
        On a slow machine, the trigger can occur before the snapshot is
        allocated causing a warning to be displayed in the ring buffer, and no
        snapshot triggering. Reversing the allocation and the enabling of the
        trigger fixes the problem"
      
      * tag 'trace-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation
      4ede1259
    • Vasily Averin's avatar
      keys: Fix proc_keys_next to increase position index · 86d32f9a
      Vasily Averin authored
      If seq_file .next function does not change position index,
      read after some lseek can generate unexpected output:
      
          $ dd if=/proc/keys bs=1  # full usual output
          0f6bfdf5 I--Q---     2 perm 3f010000  1000  1000 user      4af2f79ab8848d0a: 740
          1fb91b32 I--Q---     3 perm 1f3f0000  1000 65534 keyring   _uid.1000: 2
          27589480 I--Q---     1 perm 0b0b0000     0     0 user      invocation_id: 16
          2f33ab67 I--Q---   152 perm 3f030000     0     0 keyring   _ses: 2
          33f1d8fa I--Q---     4 perm 3f030000  1000  1000 keyring   _ses: 1
          3d427fda I--Q---     2 perm 3f010000  1000  1000 user      69ec44aec7678e5a: 740
          3ead4096 I--Q---     1 perm 1f3f0000  1000 65534 keyring   _uid_ses.1000: 1
          521+0 records in
          521+0 records out
          521 bytes copied, 0,00123769 s, 421 kB/s
      
      But a read after lseek in middle of last line results in the partial
      last line and then a repeat of the final line:
      
          $ dd if=/proc/keys bs=500 skip=1
          dd: /proc/keys: cannot skip to specified offset
          g   _uid_ses.1000: 1
          3ead4096 I--Q---     1 perm 1f3f0000  1000 65534 keyring   _uid_ses.1000: 1
          0+1 records in
          0+1 records out
          97 bytes copied, 0,000135035 s, 718 kB/s
      
      and a read after lseek beyond end of file results in the last line being
      shown:
      
          $ dd if=/proc/keys bs=1000 skip=1   # read after lseek beyond end of file
          dd: /proc/keys: cannot skip to specified offset
          3ead4096 I--Q---     1 perm 1f3f0000  1000 65534 keyring   _uid_ses.1000: 1
          0+1 records in
          0+1 records out
          76 bytes copied, 0,000119981 s, 633 kB/s
      
      See https://bugzilla.kernel.org/show_bug.cgi?id=206283
      
      Fixes: 1f4aace6 ("fs/seq_file.c: simplify seq_file iteration code ...")
      Signed-off-by: default avatarVasily Averin <vvs@virtuozzo.com>
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      86d32f9a
    • Kai-Heng Feng's avatar
      ahci: Add Intel Comet Lake PCH-U PCI ID · 1f2ef049
      Kai-Heng Feng authored
      Add Intel Comet Lake PCH-U PCI ID to the list of supported controllers.
      
      Set default SATA LPM so the SoC can enter S0ix.
      Signed-off-by: default avatarKai-Heng Feng <kai.heng.feng@canonical.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      1f2ef049
    • John Garry's avatar
      blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget · 5fe56de7
      John Garry authored
      If in blk_mq_dispatch_rq_list() we find no budget, then we break of the
      dispatch loop, but the request may keep the driver tag, evaulated
      in 'nxt' in the previous loop iteration.
      
      Fix by putting the driver tag for that request.
      Reviewed-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      5fe56de7
    • Linus Torvalds's avatar
      Merge tag 'efi-urgent-2020-04-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 00086336
      Linus Torvalds authored
      Pull EFI fixes from Ingo Molnar:
       "Misc EFI fixes, including the boot failure regression caused by the
        BSS section not being cleared by the loaders"
      
      * tag 'efi-urgent-2020-04-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/x86: Revert struct layout change to fix kexec boot regression
        efi/x86: Don't remap text<->rodata gap read-only for mixed mode
        efi/x86: Fix the deletion of variables in mixed mode
        efi/libstub/file: Merge file name buffers to reduce stack usage
        Documentation/x86, efi/x86: Clarify EFI handover protocol and its requirements
        efi/arm: Deal with ADR going out of range in efi_enter_kernel()
        efi/x86: Always relocate the kernel for EFI handover entry
        efi/x86: Move efi stub globals from .bss to .data
        efi/libstub/x86: Remove redundant assignment to pointer hdr
        efi/cper: Use scnprintf() for avoiding potential buffer overflow
      00086336
  3. 15 Apr, 2020 13 commits