1. 01 Oct, 2020 3 commits
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2020-10-01-1' of git://anongit.freedesktop.org/drm/drm · fcadab74
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "AMD and vmwgfx fixes.
      
        Just dequeuing these a bit early as the AMD ones are bit larger than
        I'd prefer, but Alex missed last week so it's a double set of fixes.
        The larger ones are just register header fixes for the new chips that
        were just introduced in rc1 along with some new PCI IDs for new hw.
        Otherwise it is usual fixes.
      
        The vmwgfx fix was due to some testing I was doing and found we
        weren't booting properly, vmware had the fix internally so hurried it
      
        vmwgfx:
         - fix a regression due to TTM refactor
      
        amdgpu:
         - Fix potential double free in userptr handling
         - Sienna Cichlid and Navy Flounder udpates
         - Add Sienna Cichlid PCI IDs
         - Drop experimental flag for navi12
         - Raven fixes
         - Renoir fixes
         - HDCP fix
         - DCN3 fix for clang and older versions of gcc
         - Fix a runtime pm refcount issue"
      
      * tag 'drm-fixes-2020-10-01-1' of git://anongit.freedesktop.org/drm/drm:
        drm/amdgpu: disable gfxoff temporarily for navy_flounder
        drm/amd/pm: setup APU dpm clock table in SMU HW initialization
        drm/vmwgfx: Fix error handling in get_node
        drm/amd/display: remove duplicate call to rn_vbios_smu_get_smu_version()
        drm/amdgpu/swsmu/smu12: fix force clock handling for mclk
        drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config
        drm/amdgpu/display: fix CFLAGS setup for DCN30
        drm/amd/display: fix return value check for hdcp_work
        drm/amdgpu: remove gpu_info fw support for sienna_cichlid etc.
        drm/amd/pm: Removed fixed clock in auto mode DPM
        drm/amdgpu: remove experimental flag from navi12
        drm/amdgpu: add device ID for sienna_cichlid (v2)
        drm/amdgpu: use the AV1 defines for VCN 3.0
        drm/amdgpu: add VCN 3.0 AV1 registers
        drm/amdgpu: add the GC 10.3 VRS registers
        drm/amdgpu: prevent double kfree ttm->sg
      fcadab74
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · aa5ff935
      Linus Torvalds authored
      Pull tracing fixes from Steven Rostedt:
       "Two tracing fixes:
      
         - Fix temp buffer accounting that caused a WARNING for
           ftrace_dump_on_opps()
      
         - Move the recursion check in one of the function callback helpers to
           the beginning of the function, as if the rcu_is_watching() gets
           traced, it will cause a recursive loop that will crash the kernel"
      
      * tag 'trace-v5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        ftrace: Move RCU is watching check after recursion check
        tracing: Fix trace_find_next_entry() accounting of temp buffer size
      aa5ff935
    • Dave Airlie's avatar
      Merge tag 'amd-drm-fixes-5.9-2020-09-30' of... · 132d7c8a
      Dave Airlie authored
      Merge tag 'amd-drm-fixes-5.9-2020-09-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
      
      amd-drm-fixes-5.9-2020-09-30:
      
      amdgpu:
      - Fix potential double free in userptr handling
      - Sienna Cichlid and Navy Flounder udpates
      - Add Sienna Cichlid PCI IDs
      - Drop experimental flag for navi12
      - Raven fixes
      - Renoir fixes
      - HDCP fix
      - DCN3 fix for clang and older versions of gcc
      - Fix a runtime pm refcount issue
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      From: Alex Deucher <alexdeucher@gmail.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200930161326.4243-1-alexander.deucher@amd.com
      132d7c8a
  2. 30 Sep, 2020 7 commits
  3. 29 Sep, 2020 13 commits
  4. 28 Sep, 2020 3 commits
  5. 27 Sep, 2020 9 commits
    • Linus Torvalds's avatar
      Linux 5.9-rc7 · a1b8638b
      Linus Torvalds authored
      a1b8638b
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v5.9-4' of... · 16bc1d54
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - ignore compiler stubs for PPC to fix builds
      
       - fix the usage of --target mentioned in the LLVM document
      
      * tag 'kbuild-fixes-v5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        Documentation/llvm: Fix clang target examples
        scripts/kallsyms: skip ppc compiler stub *.long_branch.* / *.plt_branch.*
      16bc1d54
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f8818559
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "Two fixes for the x86 interrupt code:
      
         - Unbreak the magic 'search the timer interrupt' logic in IO/APIC
           code which got wreckaged when the core interrupt code made the
           state tracking logic stricter.
      
           That caused the interrupt line to stay masked after switching from
           IO/APIC to PIC delivery mode, which obviously prevents interrupts
           from being delivered.
      
         - Make run_on_irqstack_code() typesafe. The function argument is a
           void pointer which is then cast to 'void (*fun)(void *).
      
           This breaks Control Flow Integrity checking in clang. Use proper
           helper functions for the three variants reuqired"
      
      * tag 'x86-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/ioapic: Unbreak check_timer()
        x86/irq: Make run_on_irqstack_cond() typesafe
      f8818559
    • Linus Torvalds's avatar
      Merge tag 'timers-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ba25f057
      Linus Torvalds authored
      Pull timer updates from Thomas Gleixner:
       "A set of clocksource/clockevents updates:
      
         - Reset the TI/DM timer before enabling it instead of doing it the
           other way round.
      
         - Initialize the reload value for the GX6605s timer correctly so the
           hardware counter starts at 0 again after overrun.
      
         - Make error return value negative in the h8300 timer init function"
      
      * tag 'timers-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource/drivers/timer-gx6605s: Fixup counter reload
        clocksource/drivers/timer-ti-dm: Do reset before enable
        clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init()
      ba25f057
    • Peter Xu's avatar
      mm/thp: Split huge pmds/puds if they're pinned when fork() · d042035e
      Peter Xu authored
      Pinned pages shouldn't be write-protected when fork() happens, because
      follow up copy-on-write on these pages could cause the pinned pages to
      be replaced by random newly allocated pages.
      
      For huge PMDs, we split the huge pmd if pinning is detected.  So that
      future handling will be done by the PTE level (with our latest changes,
      each of the small pages will be copied).  We can achieve this by let
      copy_huge_pmd() return -EAGAIN for pinned pages, so that we'll
      fallthrough in copy_pmd_range() and finally land the next
      copy_pte_range() call.
      
      Huge PUDs will be even more special - so far it does not support
      anonymous pages.  But it can actually be done the same as the huge PMDs
      even if the split huge PUDs means to erase the PUD entries.  It'll
      guarantee the follow up fault ins will remap the same pages in either
      parent/child later.
      
      This might not be the most efficient way, but it should be easy and
      clean enough.  It should be fine, since we're tackling with a very rare
      case just to make sure userspaces that pinned some thps will still work
      even without MADV_DONTFORK and after they fork()ed.
      Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d042035e
    • Peter Xu's avatar
      mm: Do early cow for pinned pages during fork() for ptes · 70e806e4
      Peter Xu authored
      This allows copy_pte_range() to do early cow if the pages were pinned on
      the source mm.
      
      Currently we don't have an accurate way to know whether a page is pinned
      or not.  The only thing we have is page_maybe_dma_pinned().  However
      that's good enough for now.  Especially, with the newly added
      mm->has_pinned flag to make sure we won't affect processes that never
      pinned any pages.
      
      It would be easier if we can do GFP_KERNEL allocation within
      copy_one_pte().  Unluckily, we can't because we're with the page table
      locks held for both the parent and child processes.  So the page
      allocation needs to be done outside copy_one_pte().
      
      Some trick is there in copy_present_pte(), majorly the wrprotect trick
      to block concurrent fast-gup.  Comments in the function should explain
      better in place.
      
      Oleg Nesterov reported a (probably harmless) bug during review that we
      didn't reset entry.val properly in copy_pte_range() so that potentially
      there's chance to call add_swap_count_continuation() multiple times on
      the same swp entry.  However that should be harmless since even if it
      happens, the same function (add_swap_count_continuation()) will return
      directly noticing that there're enough space for the swp counter.  So
      instead of a standalone stable patch, it is touched up in this patch
      directly.
      
      Link: https://lore.kernel.org/lkml/20200914143829.GA1424636@nvidia.com/Suggested-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      70e806e4
    • Peter Xu's avatar
      mm/fork: Pass new vma pointer into copy_page_range() · 7a4830c3
      Peter Xu authored
      This prepares for the future work to trigger early cow on pinned pages
      during fork().
      
      No functional change intended.
      Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7a4830c3
    • Peter Xu's avatar
      mm: Introduce mm_struct.has_pinned · 008cfe44
      Peter Xu authored
      (Commit message majorly collected from Jason Gunthorpe)
      
      Reduce the chance of false positive from page_maybe_dma_pinned() by
      keeping track if the mm_struct has ever been used with pin_user_pages().
      This allows cases that might drive up the page ref_count to avoid any
      penalty from handling dma_pinned pages.
      
      Future work is planned, to provide a more sophisticated solution, likely
      to turn it into a real counter.  For now, make it atomic_t but use it as
      a boolean for simplicity.
      Suggested-by: default avatarJason Gunthorpe <jgg@ziepe.ca>
      Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      008cfe44
    • Thomas Gleixner's avatar
      Merge tag 'timers-v5.9-rc4' of... · a7b6c0fe
      Thomas Gleixner authored
      Merge tag 'timers-v5.9-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
      
      Pull clocksource/clockevent fixes from Daniel Lezcano:
      
       - Fix wrong signed return value when checking of_iomap in the probe
         function for the h8300 timer (Tianjia Zhang)
      
       - Fix reset sequence when setting up the timer on the dm_timer (Tony
         Lindgren)
      
       - Fix counter reload when the interrupt fires on gx6605s (Guo Ren)
      a7b6c0fe
  6. 26 Sep, 2020 5 commits
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · a1bffa48
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Three fixes: one in drivers (lpfc) and two for zoned block devices.
      
        The latter also impinges on the block layer but only to introduce a
        new block API for setting the zone model rather than fiddling with the
        queue directly in the zoned block driver"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: sd: sd_zbc: Fix ZBC disk initialization
        scsi: sd: sd_zbc: Fix handling of host-aware ZBC disks
        scsi: lpfc: Fix initial FLOGI failure due to BBSCN not supported
      a1bffa48
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.9-2020-09-25' of git://git.kernel.dk/linux-block · 692495ba
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "Two fixes for regressions in this cycle, and one that goes to 5.8
        stable:
      
         - fix leak of getname() retrieved filename
      
         - remove plug->nowait assignment, fixing a regression with btrfs
      
         - fix for async buffered retry"
      
      * tag 'io_uring-5.9-2020-09-25' of git://git.kernel.dk/linux-block:
        io_uring: ensure async buffered read-retry is setup properly
        io_uring: don't unconditionally set plug->nowait = true
        io_uring: ensure open/openat2 name is cleaned on cancelation
      692495ba
    • Linus Torvalds's avatar
      Merge tag 'block-5.9-2020-09-25' of git://git.kernel.dk/linux-block · 9d2fbaef
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "NVMe pull request from Christoph, and removal of a dead define.
      
         - fix error during controller probe that cause double free irqs
           (Keith Busch)
      
         - FC connection establishment fix (James Smart)
      
         - properly handle completions for invalid tags (Xianting Tian)
      
         - pass the correct nsid to the command effects and supported log
           (Chaitanya Kulkarni)"
      
      * tag 'block-5.9-2020-09-25' of git://git.kernel.dk/linux-block:
        block: remove unused BLK_QC_T_EAGAIN flag
        nvme-core: don't use NVME_NSID_ALL for command effects and supported log
        nvme-fc: fail new connections to a deleted host or remote port
        nvme-pci: fix NULL req in completion handler
        nvme: return errors for hwmon init
      9d2fbaef
    • Linus Torvalds's avatar
      Merge tag 's390-5.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · eeddbe68
      Linus Torvalds authored
      Pull s390 fix from Vasily Gorbik:
       "Fix truncated ZCRYPT_PERDEV_REQCNT ioctl result. Copy entire reqcnt
        list"
      
      * tag 's390-5.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl
      eeddbe68
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 8fb1e910
      Linus Torvalds authored
      Merge misc fixes from Andrew Morton:
       "9 patches.
      
        Subsystems affected by this patch series: mm (thp, memcg, gup,
        migration, memory-hotplug), lib, and x86"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        mm: don't rely on system state to detect hot-plug operations
        mm: replace memmap_context by meminit_context
        arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback
        lib/memregion.c: include memregion.h
        lib/string.c: implement stpcpy
        mm/migrate: correct thp migration stats
        mm/gup: fix gup_fast with dynamic page table folding
        mm: memcontrol: fix missing suffix of workingset_restore
        mm, THP, swap: fix allocating cluster for swapfile by mistake
      8fb1e910