1. 23 Jan, 2016 5 commits
    • Linus Torvalds's avatar
      Merge tag 'please-pull-copy_file_range' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux · b82dde02
      Linus Torvalds authored
      Pull ia64 copy_file_range syscall update from Tony Luck:
       "Another release, another new syscall to wire up"
      
      * tag 'please-pull-copy_file_range' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
        [IA64] Enable copy_file_range syscall for ia64
      b82dde02
    • Linus Torvalds's avatar
      Merge tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 79d24532
      Linus Torvalds authored
      Pull ARM SoC support for Tegra platforms from Olof Johansson:
       "Here's a single-SoC topic branch that we've staged separately.  Mainly
        because it was hard to sort the branch contents in a way that fit our
        existing branches due to some refactorings.
      
        The code has been in -next for quite a while, but we staged it in
        arm-soc a bit late, which is why we've kept it separate from the other
        updates and are sending it separately here"
      
      * tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        arm64: tegra: Add NVIDIA Jetson TX1 Developer Kit support
        arm64: tegra: Add NVIDIA P2597 I/O board support
        arm64: tegra: Add NVIDIA Jetson TX1 support
        arm64: tegra: Add NVIDIA P2571 board support
        arm64: tegra: Add NVIDIA P2371 board support
        arm64: tegra: Add NVIDIA P2595 I/O board support
        arm64: tegra: Add NVIDIA P2530 main board support
        arm64: tegra: Add Tegra210 support
        arm64: tegra: Add NVIDIA Tegra132 Norrin support
        arm64: tegra: Add Tegra132 support
        ARM: tegra: select USB_ULPI from EHCI rather than platform
        ARM: tegra: Ensure entire dcache is flushed on entering LP0/1
        amba: Hide TEGRA_AHB symbol
        soc/tegra: Add Tegra210 support
        soc/tegra: Provide per-SoC Kconfig symbols
      79d24532
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 1b8ee1ec
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "A few fixes for fallout that we didn't catch in time in -next, or
        smaller warning fixes that have been discovered since"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        soc: qcom/spm: shut up uninitialized variable warning
        ARM: realview: fix device tree build
        ARM: debug-ll: fix BCM63xx entry for multiplatform
        ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz
      1b8ee1ec
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 5430dfe9
      Linus Torvalds authored
      Pull more input updates from Dmitry Torokhov:
       "The second round of updates for the input subsystem, mainly changes to
        xpad driver to better hanlde Xbox One controllers"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: gpio-keys - allow disabling individual buttons in DT
        Input: gpio-keys - allow setting input device name in DT
        Input: xpad - correct xbox one pad device name
        Input: atmel_mxt_ts - improve touchscreen size/orientation handling
        Input: xpad - use LED API when identifying wireless controllers
        Input: xpad - workaround dead irq_out after suspend/ resume
        Input: xpad - update Xbox One Force Feedback Support
        Input: xpad - correctly handle concurrent LED and FF requests
        Input: xpad - handle "present" and "gone" correctly
        Input: xpad - remove spurious events of wireless xpad 360 controller
      5430dfe9
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 4adea1fd
      Linus Torvalds authored
      Pull more SCSI updates from James Bottomley:
       "This is mostly stuff which missed the first pull request because it
        needed to incubate longer.  It's mainly made up of the ncr 5380 rework
        but also has a few assorted bug fixes"
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (88 commits)
        imm: Use new parport device model
        megaraid: Fix possible NULL pointer deference in mraid_mm_ioctl
        storvsc: Fix typo in MODULE_PARM_DESC
        cxgbi: Typo in MODULE_PARM_DESC
        3w-xxxx: Pass through compat mode ioctls
        hisi_sas: Use u64 for qw0 in free_device_v1_hw()
        hisi_sas: Fix typo in setup_itct_v1_hw()
        hisi_sas: Fix v1 itct masks
        ipr: Fix out-of-bounds null overwrite
        scsi: add Synology to 1024 sector blacklist
        ncr5380: Add support for HP C2502
        ncr5380: Fix wait for 53C80 registers registers after PDMA
        ncr5380: Enable PDMA for DTC chips
        ncr5380: Enable PDMA for NCR53C400A
        ncr5380: Use runtime register mapping
        ncr5380: Fix pseudo DMA transfers on 53C400
        ncr5380: Cleanup whitespace and parentheses
        atari_NCR5380: Merge changes from NCR5380.c
        ncr5380: Merge changes from atari_NCR5380.c
        ncr5380: Fix whitespace in comments using regexp
        ...
      4adea1fd
  2. 22 Jan, 2016 21 commits
    • Tony Luck's avatar
      [IA64] Enable copy_file_range syscall for ia64 · 884a12a5
      Tony Luck authored
      New system call added in:
        29732938
        vfs: add copy_file_range syscall and vfs helper
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      884a12a5
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.5-rc1' of git://git.linaro.org/people/ulf.hansson/mmc · 2c9b3ebd
      Linus Torvalds authored
      Pull MMC fixes from Ulf Hansson:
       "Here are some mmc fixes intended for v4.5 rc1.
      
        MMC core:
         - Restore reset-gpios to be optional in pwrseq_simple
         - Allow SDIO tuple for CISTPL_SDIO_STD
         - Print correct voltage value in debugfs
         - Enable tuning according to the actual timing
         - Limit SD card power limit according to cards capabilities
      
        MMC host:
         - tmio_mmc_dma: don't print invalid DMA cookie
         - mmci: Pick the correct variant and allow 8-bit mode for Nomadik"
      
      * tag 'mmc-v4.5-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
        mmc: pwrseq_simple: Make reset-gpios optional to match doc
        mmc: sdio_cis: fix unknown tuple for CISTPL_SDIO_STD
        mmc: debugfs: correct wrong voltage value
        mmc: tmio_mmc_dma: don't print invalid DMA cookie
        mmc: core: Enable tuning according to the actual timing
        mmc: mmci: support 8bit mode on the Nomadik
        mmc: mmci: fix an ages old detection error
        mmc: sd: limit SD card power limit according to cards capabilities
      2c9b3ebd
    • Linus Torvalds's avatar
      Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 48162a20
      Linus Torvalds authored
      Pull crypto fixes from Herbert Xu:
       "This fixes the following issues:
      
        API:
         - A large number of bug fixes for the af_alg interface, credit goes
           to Dmitry Vyukov for discovering and reporting these issues.
      
        Algorithms:
         - sw842 needs to select crc32.
         - The soft dependency on crc32c is now in the correct spot.
      
        Drivers:
         - The atmel AES driver needs HAS_DMA.
         - The atmel AES driver was a missing break statement, fortunately
           it's only a debug function.
         - A number of bug fixes for the Intel qat driver"
      
      * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (24 commits)
        crypto: algif_skcipher - sendmsg SG marking is off by one
        crypto: crc32c - Fix crc32c soft dependency
        crypto: algif_skcipher - Load TX SG list after waiting
        crypto: atmel-aes - Add missing break to atmel_aes_reg_name
        crypto: algif_skcipher - Fix race condition in skcipher_check_key
        crypto: algif_hash - Fix race condition in hash_check_key
        crypto: CRYPTO_DEV_ATMEL_AES should depend on HAS_DMA
        lib: sw842: select crc32
        crypto: af_alg - Forbid bind(2) when nokey child sockets are present
        crypto: algif_skcipher - Remove custom release parent function
        crypto: algif_hash - Remove custom release parent function
        crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
        crypto: qat - update init_esram for C3xxx dev type
        crypto: qat - fix timeout issues
        crypto: qat - remove to call get_sram_bar_id for qat_c3xxx
        crypto: algif_skcipher - Add key check exception for cipher_null
        crypto: skcipher - Add crypto_skcipher_has_setkey
        crypto: algif_hash - Require setkey before accept(2)
        crypto: hash - Add crypto_ahash_has_setkey
        crypto: algif_skcipher - Add nokey compatibility path
        ...
      48162a20
    • Linus Torvalds's avatar
      Merge tag 'sound-fix-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · e7cc3edd
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "Here are lots of small fixes that have been collected since the
        previous pull.  This time, not only trivial ones but fixes for some
        serious bugs are included:
      
         - Fix for CPU lockups by snd-hrtimer accesses
         - Fix for unsafe disconnection handling in ALSA timer code
         - Fix for Oops due to race at HD-audio module removal
         - Fixes for possible memory corruption via 32bit PCM and sequencer
           compat ioctls
         - Fix for regression in HD-audio generic model handling
         - Suppress kernel warnings for invalid TLV ioctls that may flood up
         - Fix the missing SSC clock handling for at73c213
         - A pin fixup for ASUS N550JX"
      
      * tag 'sound-fix-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: timer: Introduce disconnect op to snd_timer_instance
        ALSA: timer: Handle disconnection more safely
        ALSA: hda - Flush the pending probe work at remove
        ALSA: hda - Fix missing module loading with model=generic option
        ALSA: hda - Degrade i915 binding failure message
        ALSA: at73c213: manage SSC clock
        ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
        ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
        ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
        ALSA: hrtimer: Fix stall by hrtimer_cancel()
        ALSA: hda - Fix bass pin fixup for ASUS N550JX
      e7cc3edd
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 2101ae42
      Linus Torvalds authored
      Pull more btrfs updates from Chris Mason:
       "These are mostly fixes that we've been testing, but also we grabbed
        and tested a few small cleanups that had been on the list for a while.
      
        Zhao Lei's patchset also fixes some early ENOSPC buglets"
      
      * 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (21 commits)
        btrfs: raid56: Use raid_write_end_io for scrub
        btrfs: Remove unnecessary ClearPageUptodate for raid56
        btrfs: use rbio->nr_pages to reduce calculation
        btrfs: Use unified stripe_page's index calculation
        btrfs: Fix calculation of rbio->dbitmap's size calculation
        btrfs: Fix no_space in write and rm loop
        btrfs: merge functions for wait snapshot creation
        btrfs: delete unused argument in btrfs_copy_from_user
        btrfs: Use direct way to determine raid56 write/recover mode
        btrfs: Small cleanup for get index_srcdev loop
        btrfs: Enhance chunk validation check
        btrfs: Enhance super validation check
        Btrfs: fix deadlock running delayed iputs at transaction commit time
        Btrfs: fix typo in log message when starting a balance
        btrfs: remove duplicate const specifier
        btrfs: initialize the seq counter in struct btrfs_device
        Btrfs: clean up an error code in btrfs_init_space_info()
        btrfs: fix iterator with update error in backref.c
        Btrfs: fix output of compression message in btrfs_parse_options()
        Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots
        ...
      2101ae42
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 391f2a16
      Linus Torvalds authored
      Pull ext4 updates from Ted Ts'o:
       "Some locking and page fault bug fixes from Jan Kara, some ext4
        encryption fixes from me, and Li Xi's Project Quota commits"
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        fs: clean up the flags definition in uapi/linux/fs.h
        ext4: add FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
        ext4: add project quota support
        ext4: adds project ID support
        ext4 crypto: simplify interfaces to directory entry insert functions
        ext4 crypto: add missing locking for keyring_key access
        ext4: use pre-zeroed blocks for DAX page faults
        ext4: implement allocation of pre-zeroed blocks
        ext4: provide ext4_issue_zeroout()
        ext4: get rid of EXT4_GET_BLOCKS_NO_LOCK flag
        ext4: document lock ordering
        ext4: fix races of writeback with punch hole and zero range
        ext4: fix races between buffered IO and collapse / insert range
        ext4: move unlocked dio protection from ext4_alloc_file_blocks()
        ext4: fix races between page faults and hole punching
      391f2a16
    • Linus Torvalds's avatar
      Merge tag 'xfs-for-linus-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs · d5ffdf8b
      Linus Torvalds authored
      Pull more xfs updates from Dave Chinner:
       "This is the second update for XFS that I mentioned in the original
        pull request last week.
      
        It contains a revert for a suspend regression in 4.4 and a fix for a
        long standing log recovery issue that has been further exposed by all
        the log recovery changes made in the original 4.5 merge.
      
        There is one more thing in this pull request - one that I forgot to
        merge into the origin.  That is, pulling the XFS_IOC_FS[GS]ETXATTR
        ioctl up to the VFS level so that other filesystems can also use it
        for modifying project quota IDs
      
        Summary:
      
         - promotion of XFS_IOC_FS[GS]ETXATTR ioctl to the vfs level so that
           it can be shared with other filesystems.  The ext4 project quota
           functionality is the first target for this.  The commits in this
           series have not been updated with review or final SOB tags because
           the branch they were originally published in was needed by ext4.
           Those tags are:
      Reviewed-by: default avatarTheodore Ts'o <tytso@mit.edu>
      Signed-off-by: default avatarDave Chinner <david@fromrobit.com>
      
         - Revert a change that is causing suspend failures.
      
         - Fix a use-after-free that can occur on log mount failures.  Been
           around forever, but now exposed by other changes to log recovery
           made in the first 4.5 merge"
      
      * tag 'xfs-for-linus-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
        xfs: log mount failures don't wait for buffers to be released
        Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"
        xfs: introduce per-inode DAX enablement
        xfs: use FS_XFLAG definitions directly
        fs: XFS_IOC_FS[SG]SETXATTR to FS_IOC_FS[SG]ETXATTR promotion
      d5ffdf8b
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · eadee0ce
      Linus Torvalds authored
      Pull more vfs updates from Al Viro:
       "Embarrassing braino fix + pipe page accounting + fixing an eyesore in
        find_filesystem() (checking that s1 is equal to prefix of s2 of given
        length can be done in many ways, but "compare strlen(s1) with length
        and then do strncmp()" is not a good one...)"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        [regression] fix braino in fs/dlm/user.c
        pipe: limit the per-user amount of pages allocated in pipes
        find_filesystem(): simplify comparison
      eadee0ce
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 6fb11e65
      Linus Torvalds authored
      Merge misc fixes from Andrew Morton:
       "Six fixes"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock
        reiserfs: fix dereference of ERR_PTR
        ratelimit: fix bug in time interval by resetting right begin time
        mm: fix kernel crash in khugepaged thread
        mm: fix mlock accouting
        thp: change pmd_trans_huge_lock() interface to return ptl
      6fb11e65
    • Olof Johansson's avatar
      Merge tag 'renesas-fixes-for-v4.5' of... · 53c517a8
      Olof Johansson authored
      Merge tag 'renesas-fixes-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
      
      Renesas ARM Based SoC Fixes for v4.5
      
      Correct extal1 frequency of armadillo800eva board
      
      * tag 'renesas-fixes-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
        ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      53c517a8
    • Arnd Bergmann's avatar
      soc: qcom/spm: shut up uninitialized variable warning · 00affcac
      Arnd Bergmann authored
      gcc warns about the 'found' variable possibly being used uninitialized:
      
      drivers/soc/qcom/spm.c: In function 'spm_dev_probe':
      drivers/soc/qcom/spm.c:305:5: error: 'found' may be used uninitialized in this function [-Werror=maybe-uninitialized]
      
      However, the code is correct because we know that there is
      always at least one online CPU. This initializes the 'found'
      variable to zero before the loop so the compiler knows
      it does not have to warn about it.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      00affcac
    • Linus Torvalds's avatar
      Merge branch 'for-4.5/nvme' of git://git.kernel.dk/linux-block · 3e1e21c7
      Linus Torvalds authored
      Pull NVMe updates from Jens Axboe:
       "Last branch for this series is the nvme changes.  It's in a separate
        branch to avoid splitting too much between core and NVMe changes,
        since NVMe is still helping drive some blk-mq changes.  That said, not
        a huge amount of core changes in here.  The grunt of the work is the
        continued split of the code"
      
      * 'for-4.5/nvme' of git://git.kernel.dk/linux-block: (67 commits)
        uapi: update install list after nvme.h rename
        NVMe: Export NVMe attributes to sysfs group
        NVMe: Shutdown controller only for power-off
        NVMe: IO queue deletion re-write
        NVMe: Remove queue freezing on resets
        NVMe: Use a retryable error code on reset
        NVMe: Fix admin queue ring wrap
        nvme: make SG_IO support optional
        nvme: fixes for NVME_IOCTL_IO_CMD on the char device
        nvme: synchronize access to ctrl->namespaces
        nvme: Move nvme_freeze/unfreeze_queues to nvme core
        PCI/AER: include header file
        NVMe: Export namespace attributes to sysfs
        NVMe: Add pci error handlers
        block: remove REQ_NO_TIMEOUT flag
        nvme: merge iod and cmd_info
        nvme: meta_sg doesn't have to be an array
        nvme: properly free resources for cancelled command
        nvme: simplify completion handling
        nvme: special case AEN requests
        ...
      3e1e21c7
    • Linus Torvalds's avatar
      Merge branch 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block · 0a13daed
      Linus Torvalds authored
      Pull lightnvm fixes and updates from Jens Axboe:
       "This should have been part of the drivers branch, but it arrived a bit
        late and wasn't based on the official core block driver branch.  So
        they got a small scolding, but got a pass since it's still new.  Hence
        it's in a separate branch.
      
        This is mostly pure fixes, contained to lightnvm/, and minor feature
        additions"
      
      * 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block: (26 commits)
        lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM
        lightnvm: introduce factory reset
        lightnvm: use system block for mm initialization
        lightnvm: introduce ioctl to initialize device
        lightnvm: core on-disk initialization
        lightnvm: introduce mlc lower page table mappings
        lightnvm: add mccap support
        lightnvm: manage open and closed blocks separately
        lightnvm: fix missing grown bad block type
        lightnvm: reference rrpc lun in rrpc block
        lightnvm: introduce nvm_submit_ppa
        lightnvm: move rq->error to nvm_rq->error
        lightnvm: support multiple ppas in nvm_erase_ppa
        lightnvm: move the pages per block check out of the loop
        lightnvm: sectors first in ppa list
        lightnvm: fix locking and mempool in rrpc_lun_gc
        lightnvm: put block back to gc list on its reclaim fail
        lightnvm: check bi_error in gc
        lightnvm: return the get_bb_tbl return value
        lightnvm: refactor end_io functions for sync
        ...
      0a13daed
    • Linus Torvalds's avatar
      Merge branch 'for-4.5/drivers' of git://git.kernel.dk/linux-block · 64120354
      Linus Torvalds authored
      Pull block driver updates from Jens Axboe:
       "This is the block driver pull request for 4.5, with the exception of
        NVMe, which is in a separate branch and will be posted after this one.
      
        This pull request contains:
      
         - A set of bcache stability fixes, which have been acked by Kent.
           These have been used and tested for more than a year by the
           community, so it's about time that they got in.
      
         - A set of drbd updates from the drbd team (Andreas, Lars, Philipp)
           and Markus Elfring, Oleg Drokin.
      
         - A set of fixes for xen blkback/front from the usual suspects, (Bob,
           Konrad) as well as community based fixes from Kiri, Julien, and
           Peng.
      
         - A 2038 time fix for sx8 from Shraddha, with a fix from me.
      
         - A small mtip32xx cleanup from Zhu Yanjun.
      
         - A null_blk division fix from Arnd"
      
      * 'for-4.5/drivers' of git://git.kernel.dk/linux-block: (71 commits)
        null_blk: use sector_div instead of do_div
        mtip32xx: restrict variables visible in current code module
        xen/blkfront: Fix crash if backend doesn't follow the right states.
        xen/blkback: Fix two memory leaks.
        xen/blkback: make st_ statistics per ring
        xen/blkfront: Handle non-indirect grant with 64KB pages
        xen-blkfront: Introduce blkif_ring_get_request
        xen-blkback: clear PF_NOFREEZE for xen_blkif_schedule()
        xen/blkback: Free resources if connect_ring failed.
        xen/blocks: Return -EXX instead of -1
        xen/blkback: make pool of persistent grants and free pages per-queue
        xen/blkback: get the number of hardware queues/rings from blkfront
        xen/blkback: pseudo support for multi hardware queues/rings
        xen/blkback: separate ring information out of struct xen_blkif
        xen/blkfront: correct setting for xen_blkif_max_ring_order
        xen/blkfront: make persistent grants pool per-queue
        xen/blkfront: Remove duplicate setting of ->xbdev.
        xen/blkfront: Cleanup of comments, fix unaligned variables, and syntax errors.
        xen/blkfront: negotiate number of queues/rings to be used with backend
        xen/blkfront: split per device io_lock
        ...
      64120354
    • Dmitry Torokhov's avatar
      Merge branch 'next' into for-linus · b26a95d4
      Dmitry Torokhov authored
      Prepare second round of input updates for 4.5 merge window.
      b26a95d4
    • Tariq Saeed's avatar
      ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock · b1b1e15e
      Tariq Saeed authored
      NFS on a 2 node ocfs2 cluster each node exporting dir.  The lock causing
      the hang is the global bit map inode lock.  Node 1 is master, has the
      lock granted in PR mode; Node 2 is in the converting list (PR -> EX).
      There are no holders of the lock on the master node so it should
      downconvert to NL and grant EX to node 2 but that does not happen.
      BLOCKED + QUEUED in lock res are set and it is on osb blocked list.
      Threads are waiting in __ocfs2_cluster_lock on BLOCKED.  One thread
      wants EX, rest want PR.  So it is as though the downconvert thread needs
      to be kicked to complete the conv.
      
      The hang is caused by an EX req coming into __ocfs2_cluster_lock on the
      heels of a PR req after it sets BUSY (drops l_lock, releasing EX
      thread), forcing the incoming EX to wait on BUSY without doing anything.
      PR has called ocfs2_dlm_lock, which sets the node 1 lock from NL -> PR,
      queues ast.
      
      At this time, upconvert (PR ->EX) arrives from node 2, finds conflict
      with node 1 lock in PR, so the lock res is put on dlm thread's dirty
      listt.
      
      After ret from ocf2_dlm_lock, PR thread now waits behind EX on BUSY till
      awoken by ast.
      
      Now it is dlm_thread that serially runs dlm_shuffle_lists, ast, bast, in
      that order.  dlm_shuffle_lists ques a bast on behalf of node 2 (which
      will be run by dlm_thread right after the ast).  ast does its part, sets
      UPCONVERT_FINISHING, clears BUSY and wakes its waiters.  Next,
      dlm_thread runs bast.  It sets BLOCKED and kicks dc thread.  dc thread
      runs ocfs2_unblock_lock, but since UPCONVERT_FINISHING set, skips doing
      anything and reques.
      
      Inside of __ocfs2_cluster_lock, since EX has been waiting on BUSY ahead
      of PR, it wakes up first, finds BLOCKED set and skips doing anything but
      clearing UPCONVERT_FINISHING (which was actually "meant" for the PR
      thread), and this time waits on BLOCKED.  Next, the PR thread comes out
      of wait but since UPCONVERT_FINISHING is not set, it skips updating the
      l_ro_holders and goes straight to wait on BLOCKED.  So there, we have a
      hang! Threads in __ocfs2_cluster_lock wait on BLOCKED, lock res in osb
      blocked list.  Only when dc thread is awoken, it will run
      ocfs2_unblock_lock and things will unhang.
      
      One way to fix this is to wake the dc thread on the flag after clearing
      UPCONVERT_FINISHING
      
      Orabug: 20933419
      Signed-off-by: default avatarTariq Saeed <tariq.x.saeed@oracle.com>
      Signed-off-by: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
      Reviewed-by: default avatarWengang Wang <wen.gang.wang@oracle.com>
      Reviewed-by: default avatarMark Fasheh <mfasheh@suse.de>
      Cc: Joel Becker <jlbec@evilplan.org>
      Cc: Junxiao Bi <junxiao.bi@oracle.com>
      Reviewed-by: default avatarJoseph Qi <joseph.qi@huawei.com>
      Cc: Eric Ren <zren@suse.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b1b1e15e
    • Sudip Mukherjee's avatar
      reiserfs: fix dereference of ERR_PTR · ff7d080e
      Sudip Mukherjee authored
      reiserfs_iget() returns either NULL or error code in ERR_PTR.  And we
      were only checking for NULL, so in case of some other error we will try
      to dereference the ERR_PTR(-errno) thinking it to be a valid pointer.
      Signed-off-by: default avatarSudip Mukherjee <sudip@vectorindia.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ff7d080e
    • Jaewon Kim's avatar
      ratelimit: fix bug in time interval by resetting right begin time · c2594bc3
      Jaewon Kim authored
      rs->begin in ratelimit is set in two cases.
       1) when rs->begin was not initialized
       2) when rs->interval was passed
      
      For case #2, current ratelimit sets the begin to 0.  This incurrs
      improper suppression.  The begin value will be set in the next ratelimit
      call by 1).  Then the time interval check will be always false, and
      rs->printed will not be initialized.  Although enough time passed,
      ratelimit may return 0 if rs->printed is not less than rs->burst.  To
      reset interval properly, begin should be jiffies rather than 0.
      
      For an example code below:
      
          static DEFINE_RATELIMIT_STATE(mylimit, 1, 1);
          for (i = 1; i <= 10; i++) {
              if (__ratelimit(&mylimit))
                  printk("ratelimit test count %d\n", i);
              msleep(3000);
          }
      
      test result in the current code shows suppression even there is 3 seconds sleep.
      
        [  78.391148] ratelimit test count 1
        [  81.295988] ratelimit test count 2
        [  87.315981] ratelimit test count 4
        [  93.336267] ratelimit test count 6
        [  99.356031] ratelimit test count 8
        [ 105.376367] ratelimit test count 10
      Signed-off-by: default avatarJaewon Kim <jaewon31.kim@samsung.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      c2594bc3
    • yalin wang's avatar
      mm: fix kernel crash in khugepaged thread · 16fd0fe4
      yalin wang authored
      This crash is caused by NULL pointer deference, in page_to_pfn() marco,
      when page == NULL :
      
        Unable to handle kernel NULL pointer dereference at virtual address 00000000
        Internal error: Oops: 94000006 [#1] SMP
        Modules linked in:
        CPU: 1 PID: 26 Comm: khugepaged Tainted: G        W       4.3.0-rc6-next-20151022ajb-00001-g32f3386-dirty #3
        PC is at khugepaged+0x378/0x1af8
        LR is at khugepaged+0x418/0x1af8
        Process khugepaged (pid: 26, stack limit = 0xffffffc079638020)
        Call trace:
          khugepaged+0x378/0x1af8
          kthread+0xdc/0xf4
          ret_from_fork+0xc/0x40
        Code: 35001700 f0002c60 aa0703e3 f9009fa0 (f94000e0)
        ---[ end trace 637503d8e28ae69e  ]---
        Kernel panic - not syncing: Fatal exception
        CPU2: stopping
        CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D W       4.3.0-rc6-next-20151022ajb-00001-g32f3386-dirty #3
        Hardware name: linux,dummy-virt (DT)
      
      [akpm@linux-foundation.org: fix fat-fingered merge resolution]
      Signed-off-by: default avataryalin wang <yalin.wang2010@gmail.com>
      Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
      Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Acked-by: default avatarDavid Rientjes <rientjes@google.com>
      Cc: Cyrill Gorcunov <gorcunov@gmail.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      16fd0fe4
    • Kirill A. Shutemov's avatar
      mm: fix mlock accouting · 7162a1e8
      Kirill A. Shutemov authored
      Tetsuo Handa reported underflow of NR_MLOCK on munlock.
      
      Testcase:
      
          #include <stdio.h>
          #include <stdlib.h>
          #include <sys/mman.h>
      
          #define BASE ((void *)0x400000000000)
          #define SIZE (1UL << 21)
      
          int main(int argc, char *argv[])
          {
              void *addr;
      
              system("grep Mlocked /proc/meminfo");
              addr = mmap(BASE, SIZE, PROT_READ | PROT_WRITE,
                      MAP_ANONYMOUS | MAP_PRIVATE | MAP_LOCKED | MAP_FIXED,
                      -1, 0);
              if (addr == MAP_FAILED)
                  printf("mmap() failed\n"), exit(1);
              munmap(addr, SIZE);
              system("grep Mlocked /proc/meminfo");
              return 0;
          }
      
      It happens on munlock_vma_page() due to unfortunate choice of nr_pages
      data type:
      
          __mod_zone_page_state(zone, NR_MLOCK, -nr_pages);
      
      For unsigned int nr_pages, implicitly casted to long in
      __mod_zone_page_state(), it becomes something around UINT_MAX.
      
      munlock_vma_page() usually called for THP as small pages go though
      pagevec.
      
      Let's make nr_pages signed int.
      
      Similar fixes in 6cdb18ad ("mm/vmstat: fix overflow in
      mod_zone_page_state()") used `long' type, but `int' here is OK for a
      count of the number of sub-pages in a huge page.
      
      Fixes: ff6a6da6 ("mm: accelerate munlock() treatment of THP pages")
      Signed-off-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Reported-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Tested-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Cc: Michel Lespinasse <walken@google.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: <stable@vger.kernel.org>  [4.4+]
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7162a1e8
    • Kirill A. Shutemov's avatar
      thp: change pmd_trans_huge_lock() interface to return ptl · b6ec57f4
      Kirill A. Shutemov authored
      After THP refcounting rework we have only two possible return values
      from pmd_trans_huge_lock(): success and failure.  Return-by-pointer for
      ptl doesn't make much sense in this case.
      
      Let's convert pmd_trans_huge_lock() to return ptl on success and NULL on
      failure.
      Signed-off-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Suggested-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Cc: Minchan Kim <minchan@kernel.org>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b6ec57f4
  3. 21 Jan, 2016 14 commits
    • Al Viro's avatar
      [regression] fix braino in fs/dlm/user.c · 117aa41e
      Al Viro authored
      it's "bugger off if we got ERR_PTR", not the other way round...
      Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      117aa41e
    • Linus Torvalds's avatar
      Merge branch 'uaccess' (batched user access infrastructure) · 404a4741
      Linus Torvalds authored
      Expose an interface to allow users to mark several accesses together as
      being user space accesses, allowing batching of the surrounding user
      space access markers (SMAP on x86, PAN on arm64, domain register
      switching on arm).
      
      This is currently only used for the user string lenth and copying
      functions, where the SMAP overhead on x86 drowned the actual user
      accesses (only noticeable on newer microarchitectures that support SMAP
      in the first place, of course).
      
      * user access batching branch:
        Use the new batched user accesses in generic user string handling
        Add 'unsafe' user access functions for batched accesses
        x86: reorganize SMAP handling in user space accesses
      404a4741
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · eae21770
      Linus Torvalds authored
      Merge third patch-bomb from Andrew Morton:
       "I'm pretty much done for -rc1 now:
      
         - the rest of MM, basically
      
         - lib/ updates
      
         - checkpatch, epoll, hfs, fatfs, ptrace, coredump, exit
      
         - cpu_mask simplifications
      
         - kexec, rapidio, MAINTAINERS etc, etc.
      
         - more dma-mapping cleanups/simplifications from hch"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits)
        MAINTAINERS: add/fix git URLs for various subsystems
        mm: memcontrol: add "sock" to cgroup2 memory.stat
        mm: memcontrol: basic memory statistics in cgroup2 memory controller
        mm: memcontrol: do not uncharge old page in page cache replacement
        Documentation: cgroup: add memory.swap.{current,max} description
        mm: free swap cache aggressively if memcg swap is full
        mm: vmscan: do not scan anon pages if memcg swap limit is hit
        swap.h: move memcg related stuff to the end of the file
        mm: memcontrol: replace mem_cgroup_lruvec_online with mem_cgroup_online
        mm: vmscan: pass memcg to get_scan_count()
        mm: memcontrol: charge swap to cgroup2
        mm: memcontrol: clean up alloc, online, offline, free functions
        mm: memcontrol: flatten struct cg_proto
        mm: memcontrol: rein in the CONFIG space madness
        net: drop tcp_memcontrol.c
        mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM
        mm: memcontrol: allow to disable kmem accounting for cgroup2
        mm: memcontrol: account "kmem" consumers in cgroup2 memory controller
        mm: memcontrol: move kmem accounting code to CONFIG_MEMCG
        mm: memcontrol: separate kmem code from legacy tcp accounting code
        ...
      eae21770
    • Linus Torvalds's avatar
      Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · e9f57ebc
      Linus Torvalds authored
      Pull overlayfs updates from Miklos Szeredi:
       "This contains several bug fixes and a new mount option
        'default_permissions' that allows read-only exported NFS
        filesystems to be used as lower layer"
      
      * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
        ovl: check dentry positiveness in ovl_cleanup_whiteouts()
        ovl: setattr: check permissions before copy-up
        ovl: root: copy attr
        ovl: move super block magic number to magic.h
        ovl: use a minimal buffer in ovl_copy_xattr
        ovl: allow zero size xattr
        ovl: default permissions
      e9f57ebc
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse · 5c89e9ea
      Linus Torvalds authored
      Pull fuse updates from Miklos Szeredi:
       "This adds SEEK_HOLE and SEEK_DATA support in lseek"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
        fuse: add support for SEEK_HOLE and SEEK_DATA in lseek
      5c89e9ea
    • Linus Torvalds's avatar
      Merge tag 'pci-v4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · d4342156
      Linus Torvalds authored
      Pull PCI updates from Bjorn Helgaas:
       "PCI changes for the v4.5 merge window:
      
        Enumeration:
         - Simplify config space size computation (Bjorn Helgaas)
         - Avoid iterating through ROM outside the resource window (Edward O'Callaghan)
         - Support PCIe devices with short cfg_size (Jason S. McMullan)
         - Add Netronome vendor and device IDs (Jason S. McMullan)
         - Limit config space size for Netronome NFP6000 family (Jason S. McMullan)
         - Add Netronome NFP4000 PF device ID (Simon Horman)
         - Limit config space size for Netronome NFP4000 (Simon Horman)
         - Print warnings for all invalid expansion ROM headers (Vladis Dronov)
      
        Resource management:
         - Fix minimum allocation address overwrite (Christoph Biedl)
      
        PCI device hotplug:
         - acpiphp_ibm: Fix null dereferences on null ibm_slot (Colin Ian King)
         - pciehp: Always protect pciehp_disable_slot() with hotplug mutex (Guenter Roeck)
         - shpchp: Constify hpc_ops structure (Julia Lawall)
         - ibmphp: Remove unneeded NULL test (Julia Lawall)
      
        Power management:
         - Make ASPM sysfs link_state_store() consistent with link_state_show() (Andy Lutomirski)
      
        Virtualization
         - Add function 1 DMA alias quirk for Lite-On/Plextor M6e/Marvell 88SS9183 (Tim Sander)
      
        MSI:
         - Remove empty pci_msi_init_pci_dev() (Bjorn Helgaas)
         - Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD (Grygorii Strashko)
         - Initialize MSI capability for all architectures (Guilherme G. Piccoli)
         - Relax msi_domain_alloc() to support parentless MSI irqdomains (Liu Jiang)
      
        ARM Versatile host bridge driver:
         - Remove unused pci_sys_data structures (Lorenzo Pieralisi)
      
        Broadcom iProc host bridge driver:
         - Hide CONFIG_PCIE_IPROC (Arnd Bergmann)
         - Do not use 0x in front of %pap (Dmitry V. Krivenok)
         - Update iProc PCIe device tree binding (Ray Jui)
         - Add PAXC interface support (Ray Jui)
         - Add iProc PCIe MSI device tree binding (Ray Jui)
         - Add iProc PCIe MSI support (Ray Jui)
      
        Freescale i.MX6 host bridge driver:
         - Use gpio_set_value_cansleep() (Fabio Estevam)
         - Add support for active-low reset GPIO (Petr Štetiar)
      
        HiSilicon host bridge driver:
         - Add support for HiSilicon Hip06 PCIe host controllers (Gabriele Paoloni)
      
        Intel VMD host bridge driver:
         - Export irq_domain_set_info() for module use (Keith Busch)
         - x86/PCI: Allow DMA ops specific to a PCI domain (Keith Busch)
         - Use 32 bit PCI domain numbers (Keith Busch)
         - Add driver for Intel Volume Management Device (VMD) (Keith Busch)
      
        Qualcomm host bridge driver:
         - Document PCIe devicetree bindings (Stanimir Varbanov)
         - Add Qualcomm PCIe controller driver (Stanimir Varbanov)
         - dts: apq8064: add PCIe devicetree node (Stanimir Varbanov)
         - dts: ifc6410: enable PCIe DT node for this board (Stanimir Varbanov)
      
        Renesas R-Car host bridge driver:
         - Add support for R-Car H3 to pcie-rcar (Harunobu Kurokawa)
         - Allow DT to override default window settings (Phil Edworthy)
         - Convert to DT resource parsing API (Phil Edworthy)
         - Revert "PCI: rcar: Build pcie-rcar.c only on ARM" (Phil Edworthy)
         - Remove unused pci_sys_data struct from pcie-rcar (Phil Edworthy)
         - Add runtime PM support to pcie-rcar (Phil Edworthy)
         - Add Gen2 PHY setup to pcie-rcar (Phil Edworthy)
         - Add gen2 fallback compatibility string for pci-rcar-gen2 (Simon Horman)
         - Add gen2 fallback compatibility string for pcie-rcar (Simon Horman)
      
        Synopsys DesignWare host bridge driver:
         - Simplify control flow (Bjorn Helgaas)
         - Make config accessor override checking symmetric (Bjorn Helgaas)
         - Ensure ATU is enabled before IO/conf space accesses (Stanimir Varbanov)
      
        Miscellaneous:
         - Add of_pci_get_host_bridge_resources() stub (Arnd Bergmann)
         - Check for PCI_HEADER_TYPE_BRIDGE equality, not bitmask (Bjorn Helgaas)
         - Fix all whitespace issues (Bogicevic Sasa)
         - x86/PCI: Simplify pci_bios_{read,write} (Geliang Tang)
         - Use to_pci_dev() instead of open-coding it (Geliang Tang)
         - Use kobj_to_dev() instead of open-coding it (Geliang Tang)
         - Use list_for_each_entry() to simplify code (Geliang Tang)
         - Fix typos in <linux/msi.h> (Thomas Petazzoni)
         - x86/PCI: Clarify AMD Fam10h config access restrictions comment (Tomasz Nowicki)"
      
      * tag 'pci-v4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (58 commits)
        PCI: Add function 1 DMA alias quirk for Lite-On/Plextor M6e/Marvell 88SS9183
        PCI: Limit config space size for Netronome NFP4000
        PCI: Add Netronome NFP4000 PF device ID
        x86/PCI: Add driver for Intel Volume Management Device (VMD)
        PCI/AER: Use 32 bit PCI domain numbers
        x86/PCI: Allow DMA ops specific to a PCI domain
        irqdomain: Export irq_domain_set_info() for module use
        PCI: host: Add of_pci_get_host_bridge_resources() stub
        genirq/MSI: Relax msi_domain_alloc() to support parentless MSI irqdomains
        PCI: rcar: Add Gen2 PHY setup to pcie-rcar
        PCI: rcar: Add runtime PM support to pcie-rcar
        PCI: designware: Make config accessor override checking symmetric
        PCI: ibmphp: Remove unneeded NULL test
        ARM: dts: ifc6410: enable PCIe DT node for this board
        ARM: dts: apq8064: add PCIe devicetree node
        PCI: hotplug: Use list_for_each_entry() to simplify code
        PCI: rcar: Remove unused pci_sys_data struct from pcie-rcar
        PCI: hisi: Add support for HiSilicon Hip06 PCIe host controllers
        PCI: Avoid iterating through memory outside the resource window
        PCI: acpiphp_ibm: Fix null dereferences on null ibm_slot
        ...
      d4342156
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.5-rc1' of... · 859e7625
      Linus Torvalds authored
      Merge tag 'pwm/for-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "This set of changes contains a new driver for OMAP (using the
        dual-mode timers) as well as an assortment of fixes all across the
        board"
      
      * tag 'pwm/for-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
        pwm: Mark all devices as "might sleep"
        pwm: omap-dmtimer: Potential NULL dereference on error
        pwm: add HAS_IOMEM dependency to PWM_FSL_FTM
        pwm: Add PWM driver for OMAP using dual-mode timers
        pwm: rcar: Improve accuracy of frequency division setting
        pwm: lpc32xx: return ERANGE, if requested period is not supported
        pwm: lpc32xx: fix and simplify duty cycle and period calculations
        pwm: lpc32xx: make device usable with common clock framework
        pwm: lpc32xx: correct number of PWM channels from 2 to 1
        dt: lpc32xx: pwm: update documentation of LPC32xx PWM device
        dt: lpc32xx: pwm: correct LPC32xx PWM device node example
        pwm: fsl-ftm: Fix clock enable/disable when using PM
        pwm: lpss: Rework the sequence of programming PWM_SW_UPDATE
        pwm: lpss: Select core part automatically
        pwm: lpss: Update PWM setting for Broxton
        pwm: bcm2835: Fix email address specification
        pwm: bcm2835: Prevent division by zero
        pwm: bcm2835: Calculate scaler in ->config()
        pwm: lpss: Remove ->free() callback
      859e7625
    • Linus Torvalds's avatar
      Merge tag 'cris-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris · 96461fdb
      Linus Torvalds authored
      Pull CRIS updates from Jesper Nilsson:
       "Just some fixups for section mismatches from Guenter"
      
      * tag 'cris-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
        cris: Fix section mismatches in architecture startup code
        cris: debugport: Fix section mismatches
      96461fdb
    • Linus Torvalds's avatar
      Merge tag 'for-4.5' of git://git.osdn.jp/gitroot/uclinux-h8/linux · 278e5aca
      Linus Torvalds authored
      Pull h8300 updates from Yoshinori Sato:
       - Add KGDB support
       - zImage fix
       - various cleanup
      
      * tag 'for-4.5' of git://git.osdn.jp/gitroot/uclinux-h8/linux:
        h8300: System call entry enable interrupt.
        h8300: show_stack cleanup
        h8300: Restraint of warning.
        h8300: Add KGDB support.
        irqchip: renesas-h8s: Replace ctrl_outw/ctrl_inw with writew/readw
        h8300: signal stack fix
        h8300: Add LZO compression
        h8300: zImage alignment fix
        clk: h8300: Remove "sh73a0-" part from compatible value
        h8300: zImage alignment fix
      278e5aca
    • Takashi Iwai's avatar
      ALSA: timer: Introduce disconnect op to snd_timer_instance · 40ed9444
      Takashi Iwai authored
      Instead of the previous ugly hack, introduce a new op, disconnect, to
      snd_timer_instance object for handling the wake up of pending tasks
      more cleanly.
      
      Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109431Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      40ed9444
    • Takashi Iwai's avatar
      ALSA: timer: Handle disconnection more safely · 230323da
      Takashi Iwai authored
      Currently ALSA timer device doesn't take the disconnection into
      account very well; it merely unlinks the timer device at disconnection
      callback but does nothing else.  Because of this, when an application
      accessing the timer device is disconnected, it may release the
      resource before actually closed.  In most cases, it results in a
      warning message indicating a leftover timer instance like:
         ALSA: timer xxxx is busy?
      But basically this is an open race.
      
      This patch tries to address it.  The strategy is like other ALSA
      devices: namely,
      - Manage card's refcount at each open/close
      - Wake up the pending tasks at disconnection
      - Check the shutdown flag appropriately at each possible call
      
      Note that this patch has one ugly hack to handle the wakeup of pending
      tasks.  It'd be cleaner to introduce a new disconnect op to
      snd_timer_instance ops.  But since it would lead to internal ABI
      breakage and it eventually increase my own work when backporting to
      stable kernels, I took a different path to implement locally in
      timer.c.  A cleanup patch will follow at next for 4.5 kernel.
      
      Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109431
      Cc: <stable@vger.kernel.org> # v3.15+
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      230323da
    • Thierry Reding's avatar
      pwm: Mark all devices as "might sleep" · ff01c944
      Thierry Reding authored
      Commit d1cd2142 ("pwm: Set enable state properly on failed call to
      enable") introduced a mutex that is needed to protect internal state of
      PWM devices. Since that mutex is acquired in pwm_set_polarity() and in
      pwm_enable() and might potentially block, all PWM devices effectively
      become "might sleep".
      
      It's rather pointless to keep the .can_sleep field around, but given
      that there are external users let's postpone the removal for the next
      release cycle.
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      ff01c944
    • Martin Fuzzey's avatar
      mmc: pwrseq_simple: Make reset-gpios optional to match doc · 64a67d47
      Martin Fuzzey authored
      The DT binding doc says reset-gpios is an optional property but the code
      currently bails out if it is omitted.
      
      This is a regression since it breaks previously working device trees.
      Fix it by restoring the original documented behaviour.
      
      Fixes: ce037275 ("mmc: pwrseq_simple: use GPIO descriptors array API")
      Tested-by: default avatarTony Lindgren <tony@atomide.com>
      Signed-off-by: default avatarMartin Fuzzey <mfuzzey@parkeon.com>
      Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
      64a67d47
    • Linus Walleij's avatar
      ARM: realview: fix device tree build · 6551b8c9
      Linus Walleij authored
      As it happens, two obj-$(CONFIG_FOO) += foo.o variables are
      above obj-y := core.o, which doesn't work: the += directives
      need to add something to the build and doesn't work if obj-y
      is not set first, so move the obj-y to be on top and everything
      builds nicely again.
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      6551b8c9