1. 09 Sep, 2017 5 commits
    • Zi Yan's avatar
      mm: thp: enable thp migration in generic path · 616b8371
      Zi Yan authored
      Add thp migration's core code, including conversions between a PMD entry
      and a swap entry, setting PMD migration entry, removing PMD migration
      entry, and waiting on PMD migration entries.
      This patch makes it possible to support thp migration.  If you fail to
      allocate a destination page as a thp, you just split the source thp as
      we do now, and then enter the normal page migration.  If you succeed to
      allocate destination thp, you enter thp migration.  Subsequent patches
      actually enable thp migration for each caller of page migration by
      allowing its get_new_page() callback to allocate thps.
      [zi.yan@cs.rutgers.edu: fix gcc-4.9.0 -Wmissing-braces warning]
        Link: http://lkml.kernel.org/r/A0ABA698-7486-46C3-B209-E95A9048B22C@cs.rutgers.edu
      [akpm@linux-foundation.org: fix x86_64 allnoconfig warning]
      Signed-off-by: default avatarZi Yan <zi.yan@cs.rutgers.edu>
      Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
      Cc: Dave Hansen <dave.hansen@intel.com>
      Cc: David Nellans <dnellans@nvidia.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Naoya Horiguchi's avatar
      mm: thp: introduce CONFIG_ARCH_ENABLE_THP_MIGRATION · 9c670ea3
      Naoya Horiguchi authored
      Introduce CONFIG_ARCH_ENABLE_THP_MIGRATION to limit thp migration
      functionality to x86_64, which should be safer at the first step.
      Link: http://lkml.kernel.org/r/20170717193955.20207-5-zi.yan@sent.com
      Signed-off-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
      Signed-off-by: default avatarZi Yan <zi.yan@cs.rutgers.edu>
      Reviewed-by: default avatarAnshuman Khandual <khandual@linux.vnet.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Dave Hansen <dave.hansen@intel.com>
      Cc: David Nellans <dnellans@nvidia.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Naoya Horiguchi's avatar
      mm: thp: introduce separate TTU flag for thp freezing · b5ff8161
      Naoya Horiguchi authored
      TTU_MIGRATION is used to convert pte into migration entry until thp
      split completes.  This behavior conflicts with thp migration added later
      patches, so let's introduce a new TTU flag specifically for freezing.
      try_to_unmap() is used both for thp split (via freeze_page()) and page
      migration (via __unmap_and_move()).  In freeze_page(), ttu_flag given
      for head page is like below (assuming anonymous thp):
      and ttu_flag given for tail pages is:
      __unmap_and_move() calls try_to_unmap() with ttu_flag:
      Now I'm trying to insert a branch for thp migration at the top of
      try_to_unmap_one() like below
      static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
                             unsigned long address, void *arg)
                /* PMD-mapped THP migration entry */
                if (!pvmw.pte && (flags & TTU_MIGRATION)) {
                    if (!PageAnon(page))
                    set_pmd_migration_entry(&pvmw, page);
      so try_to_unmap() for tail pages called by thp split can go into thp
      migration code path (which converts *pmd* into migration entry), while
      the expectation is to freeze thp (which converts *pte* into migration
      I detected this failure as a "bad page state" error in a testcase where
      split_huge_page() is called from queue_pages_pte_range().
      Link: http://lkml.kernel.org/r/20170717193955.20207-4-zi.yan@sent.com
      Signed-off-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
      Signed-off-by: default avatarZi Yan <zi.yan@cs.rutgers.edu>
      Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
      Cc: Dave Hansen <dave.hansen@intel.com>
      Cc: David Nellans <dnellans@nvidia.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Naoya Horiguchi's avatar
      mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1 · eee4818b
      Naoya Horiguchi authored
      _PAGE_PSE is used to distinguish between a truly non-present
      (_PAGE_PRESENT=0) PMD, and a PMD which is undergoing a THP split and
      should be treated as present.
      But _PAGE_SWP_SOFT_DIRTY currently uses the _PAGE_PSE bit, which would
      cause confusion between one of those PMDs undergoing a THP split, and a
      soft-dirty PMD.  Dropping _PAGE_PSE check in pmd_present() does not work
      well, because it can hurt optimization of tlb handling in thp split.
      Thus, we need to move the bit.
      In the current kernel, bits 1-4 are not used in non-present format since
      commit 00839ee3 ("x86/mm: Move swap offset/type up in PTE to work
      around erratum").  So let's move _PAGE_SWP_SOFT_DIRTY to bit 1.  Bit 7
      is used as reserved (always clear), so please don't use it for other
      Link: http://lkml.kernel.org/r/20170717193955.20207-3-zi.yan@sent.com
      Signed-off-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
      Signed-off-by: default avatarZi Yan <zi.yan@cs.rutgers.edu>
      Acked-by: default avatarDave Hansen <dave.hansen@intel.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
      Cc: David Nellans <dnellans@nvidia.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Naoya Horiguchi's avatar
      mm: mempolicy: add queue_pages_required() · 88aaa2a1
      Naoya Horiguchi authored
      Patch series "mm: page migration enhancement for thp", v9.
      1. THP migration becomes important in the upcoming heterogeneous memory
         systems. As David Nellans from NVIDIA pointed out from other threads
         future GPUs or other accelerators will have their memory managed by
         operating systems. Moving data into and out of these memory nodes
         efficiently is critical to applications that use GPUs or other
         accelerators. Existing page migration only supports base pages, which
         has a very low memory bandwidth utilization. My experiments (see
         below) show THP migration can migrate pages more efficiently.
      2. Base page migration vs THP migration throughput.
         Here are cross-socket page migration results from calling
         move_pages() syscall:
         In x86_64, a Intel two-socket E5-2640v3 box,
          - single 4KB base page migration takes 62.47 us, using 0.06 GB/s BW,
          - single 2MB THP migration takes 658.54 us, using 2.97 GB/s BW,
          - 512 4KB base page migration takes 1987.38 us, using 0.98 GB/s BW.
         In ppc64, a two-socket Power8 box,
          - single 64KB base page migration takes 49.3 us, using 1.24 GB/s BW,
          - single 16MB THP migration takes 2202.17 us, using 7.10 GB/s BW,
          - 256 64KB base page migration takes 2543.65 us, using 6.14 GB/s BW.
         THP migration can give us 3x and 1.15x throughput over base page
         migration in x86_64 and ppc64 respectivley.
         You can test it out by using the code here:
      3. Existing page migration splits THP before migration and cannot
         guarantee the migrated pages are still contiguous. Contiguity is
         always what GPUs and accelerators look for. Without THP migration,
         khugepaged needs to do extra work to reassemble the migrated pages
         back to THPs.
      This patch (of 10):
      Introduce a separate check routine related to MPOL_MF_INVERT flag.  This
      patch just does cleanup, no behavioral change.
      Link: http://lkml.kernel.org/r/20170717193955.20207-2-zi.yan@sent.com
      Signed-off-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
      Signed-off-by: default avatarZi Yan <zi.yan@cs.rutgers.edu>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
      Cc: Dave Hansen <dave.hansen@intel.com>
      Cc: David Nellans <dnellans@nvidia.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  2. 08 Sep, 2017 9 commits
    • Linus Torvalds's avatar
      RDMA/netlink: clean up message validity array initializer · 015a9e66
      Linus Torvalds authored
      The fix in the parent made me look at that function, and react to how
      illogical and illegible the array initializer was.
      Use named array indexes to make it clearer what is going on, and make
      the initializer not depend silently on the exact index numbers.
      [ The initializer now also shows an odd inconsistency in the naming:
        note the IWCM vs IWPM..   - Linus ]
      Cc: Leon Romanovsky <leonro@mellanox.com>
      Cc: Doug Ledford <dledford@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Leon Romanovsky's avatar
      RDAM/netlink: Fix out-of-bound access while checking message validity · 8b2c7e7a
      Leon Romanovsky authored
      The netlink message sent with type == 0, which doesn't have any client
      behind it, caused to the overflow in max_num_ops array.
      Fix it by declaring zero number of ops for the first client.
      Fixes: c9901724
       ("RDMA/netlink: Remove netlink clients infrastructure")
      Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      Merge branch 'gperf-removal' · 5969d1bb
      Linus Torvalds authored
      Remove our use of 'gperf' for generating perfect hashes from some of our
      build tools.
      This removal was prompted by Masahiro Yamada sending out a patch that
      removes all our pre-generated files, and when I tested it, I noticed
      that the gperf version I have (3.1) apparently generates code that no
      longer works with out code-base because the function interfaces
      generated by gperf have changed.
      We really don't care that much, and the gperf people changed their
      interfaces in ways that makes it annoying to work with them.  Tools that
      make it hard to use them should not be used, and the kernel is not at
      all interested in some autoconf mess.  So remove the gperf dependency
      It turns out that if you ignore the pre-generated files, the use of
      gperf apparently saved us a whopping fifteen lines of code.  It
      obviously wasn't worth it, considering that the pre-generated files are
      about 500 lines.
      I sent this out as a patch about three weeks ago, and got absolutely
      zero responses.  So let's see if anybody notices now that I merge it.
      Because there might be serious bugs here, but it WorksForMe(tm).
      * gperf-removal:
        Remove gperf usage from toolchain
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 572c01ba
      Linus Torvalds authored
      Pull SCSI updates from James Bottomley:
       "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas,
        megaraid_sas, zfcp and a host of minor updates.
        The major driver change here is the elimination of the block based
        cciss driver in favour of the SCSI based hpsa driver (which now drives
        all the legacy cases cciss used to be required for). Plus a reset
        handler clean up and the redo of the SAS SMP handler to use bsg lib"
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
        scsi: scsi-mq: Always unprepare before requeuing a request
        scsi: Show .retries and .jiffies_at_alloc in debugfs
        scsi: Improve requeuing behavior
        scsi: Call scsi_initialize_rq() for filesystem requests
        scsi: qla2xxx: Reset the logo flag, after target re-login.
        scsi: qla2xxx: Fix slow mem alloc behind lock
        scsi: qla2xxx: Clear fc4f_nvme flag
        scsi: qla2xxx: add missing includes for qla_isr
        scsi: qla2xxx: Fix an integer overflow in sysfs code
        scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2()
        scsi: aacraid: get rid of one level of indentation
        scsi: aacraid: fix indentation errors
        scsi: storvsc: fix memory leak on ring buffer busy
        scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough
        scsi: smartpqi: remove the smp_handler stub
        scsi: hpsa: remove the smp_handler stub
        scsi: bsg-lib: pass the release callback through bsg_setup_queue
        scsi: Rework handling of scsi_device.vpd_pg8[03]
        scsi: Rework the code for caching Vital Product Data (VPD)
        scsi: rcu: Introduce rcu_swap_protected()
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk · cef5d0f9
      Linus Torvalds authored
      Pull printk updates from Petr Mladek:
       - Do not allow use of freed init data and code even when boot consoles
         are forced to stay. Also check for the init memory more precisely.
       - Some code clean up by starting contributors.
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
        printk: Clean up do_syslog() error handling
        printk/console: Enhance the check for consoles using init memory
        printk/console: Always disable boot consoles that use init memory before it is freed
        printk: Modify operators of printed_len and text_len
    • Linus Torvalds's avatar
      Merge tag 'audit-pr-20170907' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit · 0fb02e71
      Linus Torvalds authored
      Pull audit updates from Paul Moore:
       "A small pull request for audit this time, only four patches and only
        two with any real code changes.
        Those two changes are the removal of a pointless SELinux AVC
        initialization audit event and a fix to improve the audit timestamp
        The other two patches are comment cleanup and administrative updates,
        nothing very exciting.
        Everything passes our tests"
      * tag 'audit-pr-20170907' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
        audit: update the function comments
        selinux: remove AVC init audit log message
        audit: update the audit info in MAINTAINERS
        audit: Reduce overhead using a coarse clock
    • Linus Torvalds's avatar
      Merge tag 'secureexec-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · 828f4257
      Linus Torvalds authored
      Pull secureexec update from Kees Cook:
       "This series has the ultimate goal of providing a sane stack rlimit
        when running set*id processes.
        To do this, the bprm_secureexec LSM hook is collapsed into the
        bprm_set_creds hook so the secureexec-ness of an exec can be
        determined early enough to make decisions about rlimits and the
        resulting memory layouts. Other logic acting on the secureexec-ness of
        an exec is similarly consolidated. Capabilities needed some special
        handling, but the refactoring removed other special handling, so that
        was a wash"
      * tag 'secureexec-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        exec: Consolidate pdeath_signal clearing
        exec: Use sane stack rlimit under secureexec
        exec: Consolidate dumpability logic
        smack: Remove redundant pdeath_signal clearing
        exec: Use secureexec for clearing pdeath_signal
        exec: Use secureexec for setting dumpability
        LSM: drop bprm_secureexec hook
        commoncap: Move cap_elevated calculation into bprm_set_creds
        commoncap: Refactor to remove bprm_secureexec hook
        smack: Refactor to remove bprm_secureexec hook
        selinux: Refactor to remove bprm_secureexec hook
        apparmor: Refactor to remove bprm_secureexec hook
        binfmt: Introduce secureexec flag
        exec: Correct comments about "point of no return"
        exec: Rename bprm->cred_prepared to called_set_creds
    • Linus Torvalds's avatar
      Merge tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · 44ccba3f
      Linus Torvalds authored
      Pull gcc plugins update from Kees Cook:
       "This finishes the porting work on randstruct, and introduces a new
        option to structleak, both noted below:
         - For the randstruct plugin, enable automatic randomization of
           structures that are entirely function pointers (along with a couple
           designated initializer fixes).
         - For the structleak plugin, provide an option to perform zeroing
           initialization of all otherwise uninitialized stack variables that
           are passed by reference (Ard Biesheuvel)"
      * tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        gcc-plugins: structleak: add option to init all vars used as byref args
        randstruct: Enable function pointer struct detection
        drivers/net/wan/z85230.c: Use designated initializers
        drm/amd/powerplay: rv: Use designated initializers
    • Linus Torvalds's avatar
      Merge tag 'pstore-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · 21d236bf
      Linus Torvalds authored
      Pull pstore update from Kees Cook:
       "Make pstore permissions more versatile by removing CAP_SYSLOG
        requirement and defining more restrictive root directory DAC
        permissions default (0750, which can be adjust after boot unlike the
        CAP_SYSLOG check).
        Suggested by Nick Kralevich"
      * tag 'pstore-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        Revert "pstore: Honor dmesg_restrict sysctl on dmesg dumps"
        pstore: Make default pstorefs root dir perms 0750
  3. 07 Sep, 2017 26 commits
    • Linus Torvalds's avatar
      Merge tag '4.14-smb3-xattr-enable' of git://git.samba.org/sfrench/cifs-2.6 · 8dc5b3a6
      Linus Torvalds authored
      Pull cifs update from Steve French:
       "Enable xattr support for smb3 and also a bugfix"
      * tag '4.14-smb3-xattr-enable' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: Check for timeout on Negotiate stage
        cifs: Add support for writing attributes on SMB2+
        cifs: Add support for reading attributes on SMB2+
    • Linus Torvalds's avatar
      Merge git://git.kvack.org/~bcrl/aio-next · 2500e287
      Linus Torvalds authored
      Pull aio fix from Ben LaHaise:
       "Improve aio-nr counting on large SMP systems.
        It has been in linux-next for quite some time"
      * git://git.kvack.org/~bcrl/aio-next:
        fs: aio: fix the increment of aio-nr and counting against aio-max-nr
    • Linus Torvalds's avatar
      Merge branch 'quota_scaling' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · ae8ac6b7
      Linus Torvalds authored
      Pull quota scaling updates from Jan Kara:
       "This contains changes to make the quota subsystem more scalable.
        Reportedly it improves number of files created per second on ext4
        filesystem on fast storage by about a factor of 2x"
      * 'quota_scaling' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (28 commits)
        quota: Add lock annotations to struct members
        quota: Reduce contention on dq_data_lock
        fs: Provide __inode_get_bytes()
        quota: Inline dquot_[re]claim_reserved_space() into callsite
        quota: Inline inode_{incr,decr}_space() into callsites
        quota: Inline functions into their callsites
        ext4: Disable dirty list tracking of dquots when journalling quotas
        quota: Allow disabling tracking of dirty dquots in a list
        quota: Remove dq_wait_unused from dquot
        quota: Move locking into clear_dquot_dirty()
        quota: Do not dirty bad dquots
        quota: Fix possible corruption of dqi_flags
        quota: Propagate ->quota_read errors from v2_read_file_info()
        quota: Fix error codes in v2_read_file_info()
        quota: Push dqio_sem down to ->read_file_info()
        quota: Push dqio_sem down to ->write_file_info()
        quota: Push dqio_sem down to ->get_next_id()
        quota: Push dqio_sem down to ->release_dqblk()
        quota: Remove locking for writing to the old quota format
        quota: Do not acquire dqio_sem for dquot overwrites in v2 format
    • Linus Torvalds's avatar
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · 460352c2
      Linus Torvalds authored
      Pull UDF, reiserfs, quota, fsnotify cleanups from Jan Kara:
       "Several UDF, reiserfs, quota and fsnotify cleanups.
        Note that there is also a patch updating MAINTAINERS entry for
        notification subsystem to point to me as a maintainer since current
        entries are stale"
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        fsnotify: make dnotify_fsnotify_ops const
        isofs: Delete an unnecessary variable initialisation in isofs_read_inode()
        isofs: Adjust four checks for null pointers
        isofs: Delete an error message for a failed memory allocation in isofs_read_inode()
        quota_v2: Delete an error message for a failed memory allocation in v2_read_file_info()
        fs-udf: Delete an error message for a failed memory allocation in two functions
        fs-udf: Improve six size determinations
        fs-udf: Adjust two checks for null pointers
        reiserfs: fix spelling mistake: "tranasction" -> "transaction"
        MAINTAINERS: Update entries for notification subsystem
        uapi/linux/quota.h: Do not include linux/errno.h
    • Linus Torvalds's avatar
      Merge tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · 74fee4e8
      Linus Torvalds authored
      Pull DeviceTree updates from Rob Herring:
       "There's a few orphans in the conversion to %pOF printf specifiers
        included here that no one else picked up.
         - Convert more DT code to use of_property_read_* API.
         - Improve DT overlay support when adding multiple overlays
         - Convert printk's to %pOF format specifiers. Most went via subsystem
           trees, but picked up the remaining orphans
         - Correct unittests to use preferred "okay" for "status" property
         - Add a KASLR seed property
         - Vendor prefixes for Mellanox, Theobroma System, Adaptrum, Moxa
         - Fix modalias buffer handling
         - Clean-up of include paths for building dtbs
         - Add bindings for amc6821, isl1208, tsl2x7x, srf02, and srf10
         - Add nvmem bindings for MediaTek MT7623 and MT7622 SoC
         - Add compatible string for Allwinner H5 Mali-450 GPU
         - Fix links to old OpenFirmware docs with new mirror on
         - Remove status property from binding doc examples"
      * tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits)
        devicetree: Adjust status "ok" -> "okay" under drivers/of/
        dt-bindings: Remove "status" from examples
        dt-bindings: pinctrl: sh-pfc: Use generic node name
        dt-bindings: Add vendor Mellanox
        dt-binding: net/phy: fix interrupts description
        virt: Convert to using %pOF instead of full_name
        macintosh: Convert to using %pOF instead of full_name
        ide: pmac: Convert to using %pOF instead of full_name
        microblaze: Convert to using %pOF instead of full_name
        dt-bindings: usb: musb: Grammar s/the/to/, s/is/are/
        of: Use PLATFORM_DEVID_NONE definition
        of/device: Fix of_device_get_modalias() buffer handling
        of/device: Prevent buffer overflow in of_device_modalias()
        dt-bindings: add amc6821, isl1208 trivial bindings
        dt-bindings: add vendor prefix for Theobroma Systems
        of: search scripts/dtc/include-prefixes path for both CPP and DTC
        of: remove arch/$(SRCARCH)/boot/dts from include search path for CPP
        of: remove drivers/of/testcase-data from include search path for CPP
        of: return of_get_cpu_node from of_cpu_device_node_get if CPUs are not registered
        iio: srf08: add device tree binding for srf02 and srf10
    • Linus Torvalds's avatar
      Merge tag 'drm-intel-next-fixes-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel · 7d955656
      Linus Torvalds authored
      Pull i916 drm fixes from Rodrigo Vivi:
       "Since Dave is on paternity leave we are sending drm/i915 fixes for
        v4.14-rc1 directly to you as he had asked us to do.
        The most critical ones are the GPU reset fix for gen2-4 and GVT fix
        for a regression that is blocking gvt init to work on your tree.
        The rest is general fixes for patches coming from drm-next"
      Acked-by: default avatarDave Airlie <airlied@redhat.com>
      * tag 'drm-intel-next-fixes-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel:
        drm/i915: Re-enable GTT following a device reset
        drm/i915: Annotate user relocs with __user
        drm/i915: Silence sparse by using gfp_t
        drm/i915: Add __rcu to radix tree slot pointer
        drm/i915: Fix the missing PPAT cache attributes on CNL
        drm/i915/gvt: Remove one duplicated MMIO
        drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoder
        drm/i915: Make i2c lock ops static
        drm/i915: Make i9xx_load_ycbcr_conversion_matrix() static
        drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts
        drm/i915: Ignore duplicate VMA stored within the per-object handle LUT
        drm/i915: Skip fence alignemnt check for the CCS plane
        drm/i915: Treat fb->offsets[] as a raw byte offset instead of a linear offset
        drm/i915: Always wake the device to flush the GTT
        drm/i915: Recreate vmapping even when the object is pinned
        drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker
    • Linus Torvalds's avatar
      Merge tag 'leds_for_4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds · 5f9cc570
      Linus Torvalds authored
      Pull LED updates from Jacek Anaszewski:
       "LED class drivers improvements:
         - add Device Tree support and bindings
         - use devm_led_classdev_register()
         - add GPIO support
         - prevent crippled LED class device name
         - check for I2C errors
         - add optional retain-state-shutdown DT property
         - allow LED to retain state at shutdown
         - merge conditional tests
         - add missing of_node_put
         - delete an error message for a failed memory allocation in
         - convert to using custom %pOF printf format specifier
        Constify attribute_group structures in:
         - leds-blinkm
         - leds-lm3533
        Make several arrays static const in:
         - leds-aat1290
         - leds-lp5521
         - leds-lp5562
         - leds-lp8501"
      * tag 'leds_for_4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
        leds: pca955x: check for I2C errors
        leds: gpio: Allow LED to retain state at shutdown
        dt-bindings: leds: gpio: Add optional retain-state-shutdown property
        leds: powernv: Delete an error message for a failed memory allocation in powernv_led_create()
        leds: lp8501: make several arrays static const
        leds: lp5562: make several arrays static const
        leds: lp5521: make several arrays static const
        leds: aat1290: make array max_mm_current_percent static const
        leds: pca955x: Prevent crippled LED device name
        leds: lm3533: constify attribute_group structure
        dt-bindings: leds: add pca955x
        leds: pca955x: add GPIO support
        leds: pca955x: use devm_led_classdev_register
        leds: pca955x: add device tree support
        leds: Convert to using %pOF instead of full_name
        leds: blinkm: constify attribute_group structures.
        leds: tlc591xx: add missing of_node_put
        leds: tlc591xx: merge conditional tests
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-4.14-rc1' of git://git.infradead.org/users/vkoul/slave-dma · cd7b34fe
      Linus Torvalds authored
      Pull dmaengine updates from Vinod Koul:
       "This one features the usual updates to the drivers and one good part
        of removing DA_SG from core as it has no users.
         - Remove DMA_SG support as we have no users for this feature
         - New driver for Altera / Intel mSGDMA IP core
         - Support for memset in dmatest and qcom_hidma driver
         - Update for non cyclic mode in k3dma, bunch of update in bam_dma,
           bcm sba-raid
         - Constify device ids across drivers"
      * tag 'dmaengine-4.14-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (52 commits)
        dmaengine: sun6i: support V3s SoC variant
        dmaengine: sun6i: make gate bit in sun8i's DMA engines a common quirk
        dmaengine: rcar-dmac: document R8A77970 bindings
        dmaengine: xilinx_dma: Fix error code format specifier
        dmaengine: altera: Use macros instead of structs to describe the registers
        dmaengine: ti-dma-crossbar: Fix dra7 reserve function
        dmaengine: pl330: constify amba_id
        dmaengine: pl08x: constify amba_id
        dmaengine: bcm-sba-raid: Remove redundant SBA_REQUEST_STATE_COMPLETED
        dmaengine: bcm-sba-raid: Explicitly ACK mailbox message after sending
        dmaengine: bcm-sba-raid: Add debugfs support
        dmaengine: bcm-sba-raid: Remove redundant SBA_REQUEST_STATE_RECEIVED
        dmaengine: bcm-sba-raid: Re-factor sba_process_deferred_requests()
        dmaengine: bcm-sba-raid: Pre-ack async tx descriptor
        dmaengine: bcm-sba-raid: Peek mbox when we have no free requests
        dmaengine: bcm-sba-raid: Alloc resources before registering DMA device
        dmaengine: bcm-sba-raid: Improve sba_issue_pending() run duration
        dmaengine: bcm-sba-raid: Increase number of free sba_request
        dmaengine: bcm-sba-raid: Allow arbitrary number free sba_request
        dmaengine: bcm-sba-raid: Remove reqs_free_count from sba_device
    • Linus Torvalds's avatar
      Merge tag 'backlight-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight · 75c72715
      Linus Torvalds authored
      Pull backlight updates from Lee Jones:
         - Constification; pwm_bl
         - Use new GPIO API; gpio_backlight
         - Remove unused functionality; gpio_backlight
        Bug Fixes:
         - Fix artificial MAXREG limit; lm3630a_bl"
      * tag 'backlight-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
        backlight: gpio_backlight: Delete pdata inversion
        backlight: gpio_backlight: Convert to use GPIO descriptor
        backlight: pwm_bl: Make of_device_ids const
        backlight: lm3630a: Bump REG_MAX value to 0x50 instead of 0x1F
    • Linus Torvalds's avatar
      Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd · 968c61f7
      Linus Torvalds authored
      Pull MFD updates from Lee Jones:
       "New Drivers
         - RK805 Power Management IC (PMIC)
         - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
         - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
        New Device Support:
         - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
         - Add support for X-Powers AXP806 to axp20x
         - Add support for X-Powers AXP813 to axp20x
         - Add support for Intel Sunrise Point LPSS to intel-lpss-pci
        New Functionality:
         - Amend API to provide register layout; atmel-smc
         - DT re-work; omap, nokia
         - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
         - Fix chip ID formatting issue(s); rk808
         - Optionally register touchscreen devices; da9052-core
         - Documentation improvements; twl-core
         - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
         - Drop unnecessary static declaration; max8925-i2c
         - Kconfig changes (missing deps and remove module support)
         - Slim down oversized licence statement; hi6421-pmic-core
         - Use managed resources (devm_*); lp87565
         - Supply proper error checking/handling; t7l66xb
        Bug Fixes:
         - Fix counter duplication issue; da9052-core
         - Fix potential NULL deference issue; max8998
         - Leave SPI-NOR write-protection bit alone; lpc_ich
         - Ensure device is put into reset during suspend; intel-lpss
         - Correct register offset variable size; omap-usb-tll"
      * tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
        mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
        mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
        dt-bindings: mfd: Add bindings for ZII RAVE devices
        mfd: omap-usb-tll: Fix register offsets
        mfd: da9052: Constify spi_device_id
        mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
        mfd: da9055: Constify i2c_device_id
        mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
        mfd: t7l66xb: Handle return value of clk_prepare_enable
        mfd: Add ROHM BD9571MWV-M PMIC DT bindings
        mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
        mfd: lp87565: Convert to use devm_mfd_add_devices()
        mfd: Add support for TPS68470 device
        mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
        mfd: syscon: atmel-smc: Add helper to retrieve register layout
        mfd: axp20x: Use correct platform device ID for many PEK
        dt-bindings: mfd: axp20x: Introduce bindings for AXP813
        mfd: axp20x: Add support for AXP813 PMIC
        dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
        mfd: Add ROHM BD9571MWV-M MFD PMIC driver
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 9d71941d
      Linus Torvalds authored
      Pull input updates from Dmitry Torokhov:
       - a new GPIO bit-banging driver implementing PS/2 protocol
       - a new power key driver for Rockchip RK805 PMIC
       - bunch of patches constifying various device ID structures
       - Elan I2C touchpad driver now supports devices with 2 buttons
       - other assorted fixes
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (76 commits)
        Input: byd - make array seq static, reduces object code size
        Input: xilinx_ps2 - fix multiline comment style
        Input: pxa27x_keypad - handle return value of clk_prepare_enable
        Input: tegra-kbc - handle return value of clk_prepare_enable
        Input: PS/2 gpio bit banging driver for serio bus
        Input: xen-kbdfront - enable auto repeat for xen keyboard frontend driver
        Input: ambakmi - constify amba_id
        Input: atmel_mxt_ts - add support for reset line
        Input: atmel_mxt_ts - use more managed resources
        Input: wacom_w8001 - constify serio_device_id
        Input: tsc40 - constify serio_device_id
        Input: touchwin - constify serio_device_id
        Input: touchright - constify serio_device_id
        Input: touchit213 - constify serio_device_id
        Input: penmount - constify serio_device_id
        Input: mtouch - constify serio_device_id
        Input: inexio - constify serio_device_id
        Input: hampshire - constify serio_device_id
        Input: gunze - constify serio_device_id
        Input: fujitsu_ts - constify serio_device_id
    • Linus Torvalds's avatar
      Merge tag 'mailbox-v4.14' of git://git.linaro.org/landing-teams/working/fujitsu/integration · dfd9e6d2
      Linus Torvalds authored
      Pull mailbox updates from Jassi Brar:
       "Just behavorial changes to a controller driver: the Broadcom's Flexrm
        mailbox driver has been modifified to support debugfs and TX-Done
        mechanism by ACK.
        Nothing for the core mailbox stack"
      * tag 'mailbox-v4.14' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
        mailbox: bcm-flexrm-mailbox: Use txdone_ack instead of txdone_poll
        mailbox: bcm-flexrm-mailbox: Use bitmap instead of IDA
        mailbox: bcm-flexrm-mailbox: Fix mask used in CMPL_START_ADDR_VALUE()
        mailbox: bcm-flexrm-mailbox: Add debugfs support
        mailbox: bcm-flexrm-mailbox: Set IRQ affinity hint for FlexRM ring IRQs
    • Linus Torvalds's avatar
      Merge tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · c0da4fa0
      Linus Torvalds authored
      Pull media updates from Mauro Carvalho Chehab:
       "Brazil's Independence Day pull request :-)
        This is one of the biggest media pull requests, with 625 patches
        affecting almost all parts of media (RC, DVB, V4L2, CEC, docs).
        This contains:
         - A lot of new drivers:
           * DVB frontends: mxl5xx, stv0910, stv6111;
           * camera flash: as3645a led driver;
           * HDMI receiver: adv748X;
           * camera sensor: Omnivision 6650 5M driver (ov6650);
           * HDMI CEC: ao-cec meson driver;
           * V4L2: Qualcom camss driver;
           * Remote controller: gpio-ir-tx, pwm-ir-tx and zx-irdec drivers.
         - The DDbridge DVB driver got a massive update, with makes it in sync
           with modern hardware from that vendor;
         - There's an important milestone on this series: the DVB
           documentation was written in 2003, but only started to be updated
           in 2007. It also used to contain several gaps from the time it was
           kept ...
    • Linus Torvalds's avatar
      Merge tag 'sound-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · d9694430
      Linus Torvalds authored
      Pull sound updates from Takashi Iwai:
       "We have touched quite a lot of files but with fewer changes at this
        cycle; as you can see, most of changes are trivial fixes, especially
        constification patches.
        Among the massive attacks by constification gangs, we had a few core
        changes (mostly for ASoC core), as well the fixes and the updates by
        major vendors.
        Some highlights:
        ALSA core:
         - Fix possible races in control API user-TLV codes
         - Small cleanup of PCM core
         - Continued work for componentization; still half-baked, but we're
           certainly progressing
         - Use of devres for jack detection GPIOs, rather as a cleanup
         - Jack detection support for Qualcomm MSM8916
         - Support for Allwinner H3, Cirrus Logic CS43130, Intel Kabylake
           systems with RT5663, Realtek RT274, TI TLV320AIC32x6 and Wolfson
      * tag 'sound-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (512 commits)
        ALSA: hda/ca0132 - Fix memory leak at error path
        ALSA: hda: Fix forget to free resource in error handling code path in hda_codec_driver_probe
        ASoC: cs43130: Fix unused compiler warnings for PM runtime
        ASoC: cs43130: Fix possible Oops with invalid dev_id
        ASoC: cs43130: fix spelling mistake: "irq_occurrance" -> "irq_occurrence"
        ALSA: atmel: Remove leftovers of AVR32 removal
        ALSA: atmel: convert AC97c driver to GPIO descriptor API
        ALSA: hda/realtek - Enable jack detection function for Intel ALC700
        ALSA: hda: Fix regression of hdmi eld control created based on invalid pcm
        ASoC: Intel: Skylake: Add IPC to configure the copier secondary pins
        ASoC: add missing compile rule for max98371
        ASoC: add missing compile rule for sirf-audio-codec
        ASoC: add missing compile rule for max98371
        ASoC: cs43130: Add devicetree bindings for CS43130
        ASoC: cs43130: Add support for CS43130 codec
        ASoC: make clock direction configurable in asoc-simple
        ALSA: ctxfi: Remove null check before kfree
        ASoC: max98927: Changed device property read function
        ASoC: max98927: Modified DAPM widget and map to enable/disable VI sense path
        ASoC: max98927: Added PM suspend and resume function
    • Linus Torvalds's avatar
      Merge tag 'md/4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md · 3645e6d0
      Linus Torvalds authored
      Pull MD updates from Shaohua Li:
       "This update mainly fixes bugs:
         - Make raid5 ppl support several ppl from Pawel
         - Several raid5-cache bug fixes from Song
         - Bitmap fixes from Neil and Me
         - One raid1/10 regression fix since 4.12 from Me
         - Other small fixes and cleanup"
      * tag 'md/4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
        md/bitmap: disable bitmap_resize for file-backed bitmaps.
        raid5-ppl: Recovery support for multiple partial parity logs
        md: Runtime support for multiple ppls
        md/raid0: attach correct cgroup info in bio
        lib/raid6: align AVX512 constants to 512 bits, not bytes
        raid5: remove raid5_build_block
        md/r5cache: call mddev_lock/unlock() in r5c_journal_mode_show
        md: replace seq_release_private with seq_release
        md: notify about new spare disk in the container
        md/raid1/10: reset bio allocated from mempool
        md/raid5: release/flush io in raid5_do_work()
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 15d8ffc9
      Linus Torvalds authored
      Pull MMC updates from Ulf Hansson:
       "MMC core:
         - Continue to refactor the mmc block code to prepare for blkmq
         - Move mmc block debugfs into block module
         - Next step for eMMC CMDQ by adding a new mmc host interface for it
         - Move Kconfig option MMC_DEBUG from core to host
         - Some additional minor improvements
        MMC host:
         - Declare structs as const when applicable
         - Explicitly request exclusive reset control when applicable
         - Improve some error paths and other various cleanups
         - sdhci: Preparations to support SDHCI OMAP
         - sdhci: Improve some PM related code
         - sdhci: Re-factoring and modernizations
         - sdhci-xenon: Add runtime PM and system sleep support
         - sdhci-xenon: Add support for eMMC HS400 Enhanced Strobe
         - sdhci-cadence: Add system sleep support
         - sdhci-of-at91: Improve system sleep support
         - dw_mmc: Add support for Hisilicon hi3660
         - sunxi: Add support for A83T eMMC
         - sunxi: Add support for DDR52 mode
         - meson-gx: Add support for UHS-I SD-cards
         - meson-gx: Cleanups and improvements
         - tmio: Fix CMD12 (STOP) handling
         - tmio: Cleanups and improvements
         - renesas_sdhi: Add r8a7743/5 support
         - renesas-sdhi: Add support for R-Car Gen3 SDHI DMAC
         - renesas_sdhi: Cleanups and improvements"
      * tag 'mmc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (145 commits)
        mmc: renesas_sdhi: Add r8a7743/5 support
        mmc: meson-gx: fix __ffsdi2 undefined on arm32
        mmc: sdhci-xenon: add runtime pm support and reimplement standby
        mmc: core: Move mmc_start_areq() declaration
        mmc: mmci: stop building qcom dml as module
        mmc: sunxi: Reset the device at probe time
        clk: sunxi-ng: Provide a default reset hook
        mmc: meson-gx: rework tuning function
        mmc: meson-gx: change default tx phase
        mmc: meson-gx: implement voltage switch callback
        mmc: meson-gx: use CCF to handle the clock phases
        mmc: meson-gx: implement card_busy callback
        mmc: meson-gx: simplify interrupt handler
        mmc: meson-gx: work around clk-stop issue
        mmc: meson-gx: fix dual data rate mode frequencies
        mmc: meson-gx: rework clock init function
        mmc: meson-gx: rework clk_set function
        mmc: meson-gx: rework set_ios function
        mmc: meson-gx: cfg init overwrite values
        mmc: meson-gx: initialize sane clk default before clock register
    • James Bottomley's avatar
      Merge branch 'fixes' into misc · 2441500a
      James Bottomley authored
    • Linus Torvalds's avatar
      Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block · a0725ab0
      Linus Torvalds authored
      Pull block layer updates from Jens Axboe:
       "This is the first pull request for 4.14, containing most of the code
        changes. It's a quiet series this round, which I think we needed after
        the churn of the last few series. This contains:
         - Fix for a registration race in loop, from Anton Volkov.
         - Overflow complaint fix from Arnd for DAC960.
         - Series of drbd changes from the usual suspects.
         - Conversion of the stec/skd driver to blk-mq. From Bart.
         - A few BFQ improvements/fixes from Paolo.
         - CFQ improvement from Ritesh, allowing idling for group idle.
         - A few fixes found by Dan's smatch, courtesy of Dan.
         - A warning fixup for a race between changing the IO scheduler and
           device remova. From David Jeffery.
         - A few nbd fixes from Josef.
         - Support for cgroup info in blktrace, from Shaohua.
         - Also from Shaohua, new features in the null_blk driver to allow it
           to actually hold data, among other th...
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.14b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 3ee31b89
      Linus Torvalds authored
      Pull xen updates from Juergen Gross:
       - the new pvcalls backend for routing socket calls from a guest to dom0
       - some cleanups of Xen code
       - a fix for wrong usage of {get,put}_cpu()
      * tag 'for-linus-4.14b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (27 commits)
        xen/mmu: set MMU_NORMAL_PT_UPDATE in remap_area_mfn_pte_fn
        xen: Don't try to call xen_alloc_p2m_entry() on autotranslating guests
        xen/events: events_fifo: Don't use {get,put}_cpu() in xen_evtchn_fifo_init()
        xen/pvcalls: use WARN_ON(1) instead of __WARN()
        xen: remove not used trace functions
        xen: remove unused function xen_set_domain_pte()
        xen: remove tests for pvh mode in pure pv paths
        xen-platform: constify pci_device_id.
        xen: cleanup xen.h
        xen: introduce a Kconfig option to enable the pvcalls backend
        xen/pvcalls: implement write
        xen/pvcalls: implement read
        xen/pvcalls: implement the ioworker functions
        xen/pvcalls: disconnect and module_exit
        xen/pvcalls: implement release command
        xen/pvcalls: implement poll command
        xen/pvcalls: implement accept command
        xen/pvcalls: implement listen command
        xen/pvcalls: implement bind command
        xen/pvcalls: implement connect command
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · bac65d9d
      Linus Torvalds authored
      Pull powerpc updates from Michael Ellerman:
       "Nothing really major this release, despite quite a lot of activity.
        Just lots of things all over the place.
        Some things of note include:
         - Access via perf to a new type of PMU (IMC) on Power9, which can
           count both core events as well as nest unit events (Memory
           controller etc).
         - Optimisations to the radix MMU TLB flushing, mostly to avoid
           unnecessary Page Walk Cache (PWC) flushes when the structure of the
           tree is not changing.
         - Reworks/cleanups of do_page_fault() to modernise it and bring it
           closer to other architectures where possible.
         - Rework of our page table walking so that THP updates only need to
           send IPIs to CPUs where the affected mm has run, rather than all
         - The size of our vmalloc area is increased to 56T on 64-bit hash MMU
           systems. This avoids problems with the percpu allocator on systems
           with very sparse NUMA layouts.
         - STRICT_KERNEL_RWX support on PPC32.
         - A new sched domain topology for Power9, to capture the fact that
           pairs of cores may share an L2 cache.
         - Power9 support for VAS, which is a new mechanism for accessing
           coprocessors, and initial support for using it with the NX
           compression accelerator.
         - Major work on the instruction emulation support, adding support for
           many new instructions, and reworking it so it can be used to
           implement the emulation needed to fixup alignment faults.
         - Support for guests under PowerVM to use the Power9 XIVE interrupt
        And probably that many things again that are almost as interesting,
        but I had to keep the list short. Plus the usual fixes and cleanups as
        Thanks to: Alexey Kardashevskiy, Alistair Popple, Andreas Schwab,
        Aneesh Kumar K.V, Anju T Sudhakar, Arvind Yadav, Balbir Singh,
        Benjamin Herrenschmidt, Bhumika Goyal, Breno Leitao, Bryant G. Ly,
        Christophe Leroy, Cédric Le Goater, Dan Carpenter, Dou Liyang,
        Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff Levand, Hannes
        Reinecke, Haren Myneni, Ivan Mikhaylov, John Allen, Julia Lawall,
        LABBE Corentin, Laurentiu Tudor, Madhavan Srinivasan, Markus Elfring,
        Masahiro Yamada, Matt Brown, Michael Neuling, Murilo Opsfelder Araujo,
        Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran,
        Paul Mackerras, Rashmica Gupta, Rob Herring, Rui Teng, Sam Bobroff,
        Santosh Sivaraj, Scott Wood, Shilpasri G Bhat, Sukadev Bhattiprolu,
        Suraj Jitindar Singh, Tobin C. Harding, Victor Aoqui"
      * tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (321 commits)
        powerpc/xive: Fix section __init warning
        powerpc: Fix kernel crash in emulation of vector loads and stores
        powerpc/xive: improve debugging macros
        powerpc/xive: add XIVE Exploitation Mode to CAS
        powerpc/xive: introduce H_INT_ESB hcall
        powerpc/xive: add the HW IRQ number under xive_irq_data
        powerpc/xive: introduce xive_esb_write()
        powerpc/xive: rename xive_poke_esb() in xive_esb_read()
        powerpc/xive: guest exploitation of the XIVE interrupt controller
        powerpc/xive: introduce a common routine xive_queue_page_alloc()
        powerpc/sstep: Avoid used uninitialized error
        axonram: Return directly after a failed kzalloc() in axon_ram_probe()
        axonram: Improve a size determination in axon_ram_probe()
        axonram: Delete an error message for a failed memory allocation in axon_ram_probe()
        powerpc/powernv/npu: Move tlb flush before launching ATSD
        powerpc/macintosh: constify wf_sensor_ops structures
        powerpc/iommu: Use permission-specific DEVICE_ATTR variants
        powerpc/eeh: Delete an error out of memory message at init time
        powerpc/mm: Use seq_putc() in two functions
        macintosh: Convert to using %pOF instead of full_name
    • Linus Torvalds's avatar
      Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f92e3da1
      Linus Torvalds authored
      Pull EFI updates from Ingo Molnar:
       "The main changes in this cycle were:
         - Transparently fall back to other poweroff method(s) if EFI poweroff
           fails (and returns)
         - Use separate PE/COFF section headers for the RX and RW parts of the
           ARM stub loader so that the firmware can use strict mapping
         - Add support for requesting the firmware to wipe RAM at warm reboot
         - Increase the size of the random seed obtained from UEFI so CRNG
           fast init can complete earlier
         - Update the EFI framebuffer address if it points to a BAR that gets
           moved by the PCI resource allocation code
         - Enable "reset attack mitigation" of TPM environments: this is
           enabled if the kernel is configured with
         - Clang related fixes
         - Misc cleanups, constification, refactoring, etc"
      * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/bgrt: Use efi_mem_type()
        efi: Move efi_mem_type() to common code
        efi/reboot: Make function pointer orig_pm_power_off static
        efi/random: Increase size of firmware supplied randomness
        efi/libstub: Enable reset attack mitigation
        firmware/efi/esrt: Constify attribute_group structures
        firmware/efi: Constify attribute_group structures
        firmware/dcdbas: Constify attribute_group structures
        arm/efi: Split zImage code and data into separate PE/COFF sections
        arm/efi: Replace open coded constants with symbolic ones
        arm/efi: Remove pointless dummy .reloc section
        arm/efi: Remove forbidden values from the PE/COFF header
        drivers/fbdev/efifb: Allow BAR to be moved instead of claiming it
        efi/reboot: Fall back to original power-off method if EFI_RESET_SHUTDOWN returns
        efi/arm/arm64: Add missing assignment of efi.config_table
        efi/libstub/arm64: Set -fpie when building the EFI stub
        efi/libstub/arm64: Force 'hidden' visibility for section markers
        efi/libstub/arm64: Use hidden attribute for struct screen_info reference
        efi/arm: Don't mark ACPI reclaim memory as MEMBLOCK_NOMAP
    • Mauricio Faria de Oliveira's avatar
      fs: aio: fix the increment of aio-nr and counting against aio-max-nr · 2a8a9867
      Mauricio Faria de Oliveira authored
      Currently, aio-nr is incremented in steps of 'num_possible_cpus() * 8'
      for io_setup(nr_events, ..) with 'nr_events < num_possible_cpus() * 4':
              nr_events = max(nr_events, num_possible_cpus() * 4);
              nr_events *= 2;
              ctx->max_reqs = nr_events;
              aio_nr += ctx->max_reqs;
      This limits the number of aio contexts actually available to much less
      than aio-max-nr, and is increasingly worse with greater number of CPUs.
      For example, with 64 CPUs, only 256 aio contexts are actually available
      (with aio-max-nr = 65536) because the increment is 512 in that scenario.
      Note: 65536 [max aio contexts] / (64*4*2) [increment per aio context]
      is 128, but make it 256 (double) as counting against 'aio-max-nr * 2':
              if (aio_nr + nr_events > (aio_max_nr * 2UL) ||
                  goto err_ctx;
      This patch uses the original value of nr_events (from userspace) to
      increment aio-nr and count against aio-max-nr, which resolves those.
      Signed-off-by: default avatarMauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
      Reported-by: default avatarLekshmi C. Pillai <lekshmi.cpillai@in.ibm.com>
      Tested-by: default avatarLekshmi C. Pillai <lekshmi.cpillai@in.ibm.com>
      Tested-by: default avatarPaul Nguyen <nguyenp@us.ibm.com>
      Reviewed-by: default avatarJeff Moyer <jmoyer@redhat.com>
      Signed-off-by: default avatarBenjamin LaHaise <bcrl@kvack.org>
    • Linus Torvalds's avatar
      Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 57e88b43
      Linus Torvalds authored
      Pull x86 platform updates from Ingo Molnar:
       "The main changes include various Hyper-V optimizations such as faster
        hypercalls and faster/better TLB flushes - and there's also some
        Intel-MID cleanups"
      * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others()
        x86/hyper-v: Support extended CPU ranges for TLB flush hypercalls
        x86/platform/intel-mid: Make several arrays static, to make code smaller
        MAINTAINERS: Add missed file for Hyper-V
        x86/hyper-v: Use hypercall for remote TLB flush
        hyper-v: Globalize vp_index
        x86/hyper-v: Implement rep hypercalls
        hyper-v: Use fast hypercall for HVCALL_SIGNAL_EVENT
        x86/hyper-v: Introduce fast hypercall implementation
        x86/hyper-v: Make hv_do_hypercall() inline
        x86/hyper-v: Include hyperv/ only when CONFIG_HYPERV is set
        x86/platform/intel-mid: Make 'bt_sfi_data' const
        x86/platform/intel-mid: Make IRQ allocation a bit more flexible
        x86/platform/intel-mid: Group timers callbacks together
    • Linus Torvalds's avatar
      Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata · 3b9f8ed2
      Linus Torvalds authored
      Pull libata updates from Tejun Heo:
       "Except for the ahci fix that fixes a boot issue, nothing major in this
        pull request. Some new platform controller support and device specific
      * 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
        libata: zpodd: make arrays cdb static, reduces object code size
        ahci: don't use MSI for devices with the silly Intel NVMe remapping scheme
        dt-bindings: ata: add DT bindings for MediaTek SATA controller
        ata: mediatek: add support for MediaTek SATA controller
        pata_octeon_cf: use of_property_read_{bool|u32}()
        cs5536: add support for IDE controller variant
        ata: sata_gemini: Introduce explicit IDE pin control
        ata: sata_gemini: Retire custom pin control
        ata: ahci_platform: Add shutdown handler
        ata: sata_gemini: explicitly request exclusive reset control
        ata: Drop unnecessary static
        ata: Convert to using %pOF instead of full_name
    • Linus Torvalds's avatar
      Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · 608c1d3c
      Linus Torvalds authored
      Pull cgroup updates from Tejun Heo:
       "Several notable changes this cycle:
         - Thread mode was merged. This will be used for cgroup2 support for
           CPU and possibly other controllers. Unfortunately, CPU controller
           cgroup2 support didn't make this pull request but most contentions
           have been resolved and the support is likely to be merged before
           the next merge window.
         - cgroup.stat now shows the number of descendant cgroups.
         - cpuset now can enable the easier-to-configure v2 behavior on v1
      * 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (21 commits)
        cpuset: Allow v2 behavior in v1 cgroup
        cgroup: Add mount flag to enable cpuset to use v2 behavior in v1 cgroup
        cgroup: remove unneeded checks
        cgroup: misc changes
        cgroup: short-circuit cset_cgroup_from_root() on the default hierarchy
        cgroup: re-use the parent pointer in cgroup_destroy_locked()
        cgroup: add cgroup.stat interface with basic hierarchy stats
        cgroup: implement hierarchy limits
        cgroup: keep track of number of descent cgroups
        cgroup: add comment to cgroup_enable_threaded()
        cgroup: remove unnecessary empty check when enabling threaded mode
        cgroup: update debug controller to print out thread mode information
        cgroup: implement cgroup v2 thread support
        cgroup: implement CSS_TASK_ITER_THREADED
        cgroup: introduce cgroup->dom_cgrp and threaded css_set handling
        cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS
        cgroup: reorganize cgroup.procs / task write path
        cgroup: replace css_set walking populated test with testing cgrp->nr_populated_csets
        cgroup: distinguish local and children populated states
        cgroup: remove now unused list_head @pending in cgroup_apply_cftypes()
    • Linus Torvalds's avatar
      Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq · 9954d489
      Linus Torvalds authored
      Pull workqueue updates from Tejun Heo:
       "Nothing major. I introduced a flag collsion bug during v4.13 cycle
        which is fixed in this pull request. Fortunately, the flag is for
        debugging / verification and the bug isn't critical"
      * 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
        workqueue: Fix flag collision
        workqueue: Use TASK_IDLE
        workqueue: fix path to documentation
        workqueue: doc change for ST behavior on NUMA systems