1. 23 Feb, 2015 3 commits
    • Linus Torvalds's avatar
      Linux 4.0-rc1 · c517d838
      Linus Torvalds authored
      .. after extensive statistical analysis of my G+ polling, I've come to
      the inescapable conclusion that internet polls are bad.
      Big surprise.
      But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38%
      margin, in a poll that people weren't even supposed to participate in.
      Who can argue with solid numbers like that? 5,796 votes from people who
      can't even follow the most basic directions?
      In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%,
      but with a total of 29,110 votes right now.
      Now, arguably, that vote spread is only about 3,200 votes, which is less
      than the almost six thousand votes that the "please ignore" poll got, so
      it could be considered noise.
      But hey, I asked, so I'll honor the votes.
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · feaf2229
      Linus Torvalds authored
      Pull ext4 fixes from Ted Ts'o:
       "Ext4 bug fixes.
        We also reserved code points for encryption and read-only images (for
        which the implementation is mostly just the reserved code point for a
        read-only feature :-)"
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: fix indirect punch hole corruption
        ext4: ignore journal checksum on remount; don't fail
        ext4: remove duplicate remount check for JOURNAL_CHECKSUM change
        ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize
        ext4: support read-only images
        ext4: change to use setup_timer() instead of init_timer()
        ext4: reserve codepoints used by the ext4 encryption feature
        jbd2: complain about descriptor block checksum errors
    • Linus Torvalds's avatar
      Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · be5e6616
      Linus Torvalds authored
      Pull more vfs updates from Al Viro:
       "Assorted stuff from this cycle.  The big ones here are multilayer
        overlayfs from Miklos and beginning of sorting ->d_inode accesses out
        from David"
      * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits)
        autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
        procfs: fix race between symlink removals and traversals
        debugfs: leave freeing a symlink body until inode eviction
        Documentation/filesystems/Locking: ->get_sb() is long gone
        trylock_super(): replacement for grab_super_passive()
        fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
        Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
        VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
        SELinux: Use d_is_positive() rather than testing dentry->d_inode
        Smack: Use d_is_positive() rather than testing dentry->d_inode
        TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
        Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
        Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
        VFS: Split DCACHE_FILE_TYPE into regular and special types
        VFS: Add a fallthrough flag for marking virtual dentries
        VFS: Add a whiteout dentry type
        VFS: Introduce inode-getting helpers for layered/unioned fs environments
        Infiniband: Fix potential NULL d_inode dereference
        posix_acl: fix reference leaks in posix_acl_create
        autofs4: Wrong format for printing dentry
  2. 22 Feb, 2015 21 commits
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm · 90c453ca
      Linus Torvalds authored
      Pull ARM fix from Russell King:
       "Just one fix this time around.  __iommu_alloc_buffer() can cause a
        BUG() if dma_alloc_coherent() is called with either __GFP_DMA32 or
        __GFP_HIGHMEM set.  The patch from Alexandre addresses this"
      * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
        ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer()
    • Al Viro's avatar
      autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation · 0a280962
      Al Viro authored
      X-Coverup: just ask spender
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Al Viro's avatar
      procfs: fix race between symlink removals and traversals · 7e0e953b
      Al Viro authored
      use_pde()/unuse_pde() in ->follow_link()/->put_link() resp.
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Al Viro's avatar
      debugfs: leave freeing a symlink body until inode eviction · 0db59e59
      Al Viro authored
      As it is, we have debugfs_remove() racing with symlink traversals.
      Supply ->evict_inode() and do freeing there - inode will remain
      pinned until we are done with the symlink body.
      And rip the idiocy with checking if dentry is positive right after
      we'd verified debugfs_positive(), which is a stronger check...
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Al Viro's avatar
    • Konstantin Khlebnikov's avatar
      trylock_super(): replacement for grab_super_passive() · eb6ef3df
      Konstantin Khlebnikov authored
      I've noticed significant locking contention in memory reclaimer around
      sb_lock inside grab_super_passive(). Grab_super_passive() is called from
      two places: in icache/dcache shrinkers (function super_cache_scan) and
      from writeback (function __writeback_inodes_wb). Both are required for
      progress in memory allocator.
      Grab_super_passive() acquires sb_lock to increment sb->s_count and check
      sb->s_instances. It seems sb->s_umount locked for read is enough here:
      super-block deactivation always runs under sb->s_umount locked for write.
      Protecting super-block itself isn't a problem: in super_cache_scan() sb
      is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers
      are still active. Inside writeback super-block comes from inode from bdi
      writeback list under wb->list_lock.
      This patch removes locking sb_lock and checks s_instances under s_umount:
      generic_shutdown_super() unlinks it under sb->s_umount locked for write.
      New variant is called trylock_super() and since it only locks semaphore,
      callers must call up_read(&sb->s_umount) instead of drop_super(sb) when
      they're done.
      Signed-off-by: default avatarKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions · 54f2a2f4
      David Howells authored
      Fanotify probably doesn't want to watch autodirs so make it use d_can_lookup()
      rather than d_is_dir() when checking a dir watch and give an error on fake
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions · ce40fa78
      David Howells authored
      Fix up the following scripted S_ISDIR/S_ISREG/S_ISLNK conversions (or lack
      thereof) in cachefiles:
       (1) Cachefiles mostly wants to use d_can_lookup() rather than d_is_dir() as
           it doesn't want to deal with automounts in its cache.
       (2) Coccinelle didn't find S_IS* expressions in ASSERT() statements in
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) · e36cb0b8
      David Howells authored
      Convert the following where appropriate:
       (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry).
       (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry).
       (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry).  This is actually more
           complicated than it appears as some calls should be converted to
           d_can_lookup() instead.  The difference is whether the directory in
           question is a real dir with a ->lookup op or whether it's a fake dir with
           a ->d_automount op.
      In some circumstances, we can subsume checks for dentry->d_inode not being
      NULL into this, provided we the code isn't in a filesystem that expects
      d_inode to be NULL if the dirent really *is* negative (ie. if we're going to
      use d_inode() rather than d_backing_inode() to get the inode pointer).
      Note that the dentry type field may be set to something other than
      DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS
      manages the fall-through from a negative dentry to a lower layer.  In such a
      case, the dentry type of the negative union dentry is set to the same as the
      type of the lower dentry.
      However, if you know d_inode is not NULL at the call site, then you can use
      the d_is_xxx() functions even in a filesystem.
      There is one further complication: a 0,0 chardev dentry may be labelled
      DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE.  Strictly, this was
      intended for special directory entry types that don't have attached inodes.
      The following perl+coccinelle script was used:
      use strict;
      my @callers;
      open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') ||
          die "Can't grep for S_ISDIR and co. callers";
      @callers = <$fd>;
      unless (@callers) {
          print "No matches\n";
      my @cocci = (
          'expression E;',
          '- S_ISLNK(E->d_inode->i_mode)',
          '+ d_is_symlink(E)',
          'expression E;',
          '- S_ISDIR(E->d_inode->i_mode)',
          '+ d_is_dir(E)',
          'expression E;',
          '- S_ISREG(E->d_inode->i_mode)',
          '+ d_is_reg(E)' );
      my $coccifile = "tmp.sp.cocci";
      open($fd, ">$coccifile") || die $coccifile;
      print($fd "$_\n") || die $coccifile foreach (@cocci);
      foreach my $file (@callers) {
          chomp $file;
          print "Processing ", $file, "\n";
          system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 ||
      	die "spatch failed";
      [AV: overlayfs parts skipped]
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      SELinux: Use d_is_positive() rather than testing dentry->d_inode · 2c616d4d
      David Howells authored
      Use d_is_positive() rather than testing dentry->d_inode in SELinux to get rid
      of direct references to d_inode outside of the VFS.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      Smack: Use d_is_positive() rather than testing dentry->d_inode · 8802565b
      David Howells authored
      Use d_is_positive() rather than testing dentry->d_inode in Smack to get rid of
      direct references to d_inode outside of the VFS.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR() · e656a8eb
      David Howells authored
      Use d_is_dir() rather than d_inode and S_ISDIR().  Note that this will include
      fake directories such as automount triggers.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode · 729b8a3d
      David Howells authored
      Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing
      dentry->d_inode as the dentry may cover another layer that has an inode when
      the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb · 7ac2856d
      David Howells authored
      mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and
      should avoid file_inode() also since it is really dealing with the path.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      VFS: Split DCACHE_FILE_TYPE into regular and special types · 44bdb5e5
      David Howells authored
      Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular
      files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and
      socket files).
      d_is_reg() and d_is_special() are added to detect these subtypes and
      d_is_file() is left as the union of the two.
      This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to
      use d_is_reg(dentry) instead.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      VFS: Add a fallthrough flag for marking virtual dentries · df1a085a
      David Howells authored
      Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is
      a virtual dentry that covers another one in a lower layer that should be used
      instead.  This may be recorded on medium if directory integration is stored
      The flag can be set with d_set_fallthru() and tested with d_is_fallthru().
      Original-author: Valerie Aurora <vaurora@redhat.com>
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      VFS: Add a whiteout dentry type · e7f7d225
      David Howells authored
      Add DCACHE_WHITEOUT_TYPE and provide a d_is_whiteout() accessor function.  A
      d_is_miss() accessor is also added for ordinary cache misses and
      d_is_negative() is modified to indicate either an ordinary miss or an enforced
      miss (whiteout).
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • David Howells's avatar
      VFS: Introduce inode-getting helpers for layered/unioned fs environments · 155e35d4
      David Howells authored
      Introduce some function for getting the inode (and also the dentry) in an
      environment where layered/unioned filesystems are in operation.
      The problem is that we have places where we need *both* the union dentry and
      the lower source or workspace inode or dentry available, but we can only have
      a handle on one of them.  Therefore we need to derive the handle to the other
      from that.
      The idea is to introduce an extra field in struct dentry that allows the union
      dentry to refer to and pin the lower dentry.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · a135c717
      Linus Torvalds authored
      Pull MIPS updates from Ralf Baechle:
       "This is the main pull request for MIPS:
         - a number of fixes that didn't make the 3.19 release.
         - a number of cleanups.
         - preliminary support for Cavium's Octeon 3 SOCs which feature up to
           48 MIPS64 R3 cores with FPU and hardware virtualization.
         - support for MIPS R6 processors.
           Revision 6 of the MIPS architecture is a major revision of the MIPS
           architecture which does away with many of original sins of the
           architecture such as branch delay slots.  This and other changes in
           R6 require major changes throughout the entire MIPS core
           architecture code and make up for the lion share of this pull
         - finally some preparatory work for eXtendend Physical Address
           support, which allows support of up to 40 bit of physical address
           space on 32 bit processors"
           [ Ahh, MIPS can't leave the PAE brain damage alone.  It's like
             every CPU architect has to make that mistake, but pee in the snow
             by changing the TLA.  But whether it's called PAE, LPAE or XPA,
             it's horrid crud   - Linus ]
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (114 commits)
        MIPS: sead3: Corrected get_c0_perfcount_int
        MIPS: mm: Remove dead macro definitions
        MIPS: OCTEON: irq: add CIB and other fixes
        MIPS: OCTEON: Don't do acknowledge operations for level triggered irqs.
        MIPS: OCTEON: More OCTEONIII support
        MIPS: OCTEON: Remove setting of processor specific CVMCTL icache bits.
        MIPS: OCTEON: Core-15169 Workaround and general CVMSEG cleanup.
        MIPS: OCTEON: Update octeon-model.h code for new SoCs.
        MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX
        MIPS: OCTEON: Add little-endian support to asm/octeon/octeon.h
        MIPS: OCTEON: Implement the core-16057 workaround
        MIPS: OCTEON: Delete unused COP2 saving code
        MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register
        MIPS: OCTEON: Save and restore CP2 SHA3 state
        MIPS: OCTEON: Fix FP context save.
        MIPS: OCTEON: Save/Restore wider multiply registers in OCTEON III CPUs
        MIPS: boot: Provide more uImage options
        MIPS: Remove unneeded #ifdef __KERNEL__ from asm/processor.h
        MIPS: ip22-gio: Remove legacy suspend/resume support
        mips: pci: Add ifdef around pci_proc_domain
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 21770332
      Linus Torvalds authored
      Pull ARM SoC fixes from Arnd Bergmann:
       "A few fixes that came in too late to make it into the first set of
        pull requests but would still be nice to have in -rc1.
        The majority of these are trivial build fixes for bugs that I found
        myself using randconfig testing, and a set of two patches from Uwe to
        mark DT strings as 'const' where appropriate, to resolve inconsistent
        section attributes"
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: make of_device_ids const
        ARM: make arrays containing machine compatible strings const
        ARM: mm: Remove Kconfig symbol CACHE_PL310
        ARM: rockchip: force built-in regulator support for PM
        ARM: mvebu: build armada375-smp code conditionally
        ARM: sti: always enable RESET_CONTROLLER
        ARM: rockchip: make rockchip_suspend_init conditional
        ARM: ixp4xx: fix {in,out}s{bwl} data types
        ARM: prima2: do not select SMP_ON_UP
        ARM: at91: fix pm declarations
        ARM: davinci: multi-soc kernels require AUTO_ZRELADDR
        ARM: davinci: davinci_cfg_reg cannot be init
        ARM: BCM: put back ARCH_MULTI_V7 dependency for mobile
        ARM: vexpress: use ARM_CPU_SUSPEND if needed
        ARM: dts: add I2C device nodes for Broadcom Cygnus
        ARM: dts: BCM63xx: fix L2 cache properties
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · c8c6c9ba
      Linus Torvalds authored
      Pull misc SCSI patches from James Bottomley:
       "This is a short patch set representing a couple of left overs from the
        merge window (debug removal and MAINTAINER changes).
        Plus one merge window regression (the local workqueue for hpsa) and a
        set of bug fixes for several issues (two for scsi-mq and the rest an
        assortment of long standing stuff, all cc'd to stable)"
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        sg: fix EWOULDBLOCK errors with scsi-mq
        sg: fix unkillable I/O wait deadlock with scsi-mq
        sg: fix read() error reporting
        wd719x: add missing .module to wd719x_template
        hpsa: correct compiler warnings introduced by hpsa-add-local-workqueue patch
        fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit.
        fcoe: Transition maintainership to Vasu
        am53c974: remove left-over debugging code
  3. 21 Feb, 2015 16 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-pnfs-for-linus-3.20-rc1' of... · 93aaa830
      Linus Torvalds authored
      Merge tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
      Pull xfs pnfs block layout support from Dave Chinner:
       "This contains the changes to XFS needed to support the PNFS block
        layout server that you pulled in through Bruce's NFS server tree
        I originally thought that I'd need to merge changes into the NFS
        server side, but Bruce had already picked them up and so this is
        purely changes to the fs/xfs/ codebase.
        This update contains the implementation of the PNFS server export
        methods that enable use of XFS filesystems as a block layout target"
      * tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
        xfs: recall pNFS layouts on conflicting access
        xfs: implement pNFS export operations
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-3.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 24a52e41
      Linus Torvalds authored
      Pull more NFS client updates from Trond Myklebust:
       "Highlights include:
         - Fix a use-after-free in decode_cb_sequence_args()
         - Fix a compile error when #undef CONFIG_PROC_FS
         - NFSv4.1 backchannel spinlocking issue
         - Cleanups in the NFS unstable write code requested by Linus
         - NFSv4.1 fix issues when the server denies our backchannel request
         - Cleanups in create_session and bind_conn_to_session"
      * tag 'nfs-for-3.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        NFSv4.1: Clean up bind_conn_to_session
        NFSv4.1: Always set up a forward channel when binding the session
        NFSv4.1: Don't set up a backchannel if the server didn't agree to do so
        NFSv4.1: Clean up create_session
        pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit
        NFSv4: Kill unused nfs_inode->delegation_state field
        NFS: struct nfs_commit_info.lock must always point to inode->i_lock
        nfs: Can call nfs_clear_page_commit() instead
        nfs: Provide and use helper functions for marking a page as unstable
        SUNRPC: Always manipulate rpc_rqst::rq_bc_pa_list under xprt->bc_pa_lock
        SUNRPC: Fix a compile error when #undef CONFIG_PROC_FS
        NFSv4.1: Convert open-coded array allocation calls to kmalloc_array()
        NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.20-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · cd50b70c
      Linus Torvalds authored
      Pull one more batch of power management and ACPI updates from Rafael Wysocki:
       "These are mostly fixes on top of the previously merged recent PM and
        ACPI material.
        First, one commit that broke the ACPI LPSS (Low-Power Subsystem)
        driver on a Dell box is reverted and there are two stable-candidate
        fixes for that driver.  Another fix cleans up two recently added ACPI
        EC messages that look odd and the printk level of a noisy debug
        message in the core ACPI resources handling code is reduced.
        In addition to that we have two stable-candidate fixes for the s3c
        cpufreq driver, two cpuidle powernv driver updates related to Device
        Trees and a PNP subsystem cleanup that will allow us to get rid of
        some old ugliness going forward.  Also there is a new blacklist entry
        for the ACPI backlight code.
         - Revert a recent ACPI LPSS driver commit that prevented the touchpad
           driver from loading on Dell XPS13 (Jarkko Nikula).
         - Make the ACPI LPSS driver disable the I2C controllers and deassert
           SPI host controllers resets at startup on Intel BayTrail and
           Braswell SoCs in case they have been left in wrong states by the
           platform firmware which then may casuse fatal controller driver
           failures during resume from hibernation (Mika Westerberg).
         - Make two recently added ACPI EC messages look better (Scot Doyle).
         - Reduce the printk level of a recently added debug message related
           to ACPI resources that may become noisy in some cases (Rafael J
         - Add a new ACPI backlight blacklist entry for Samsung Series 9
           (900X3C/900X3D/900X3E/900X4C/900X4D) laptops where the native
           backlight interface doesn't work while the ACPI based one does
           (Jens Reyer).
         - Make the PNP sybsystem's core code use __request_region() followed
           by __release_region() instead of __check_region() which then will
           allow us to get rid of the latter as it has no more users (Jakub
         - Fix a build breakage and an issue with two __init functions that
           may be called after initialization in the s3c cpufreq driver (Arnd
         - Make the powernv cpuidle driver read target_residency values for
           idle states from a Device Tree (as we have the suitable DT bindings
           for that now) and improve the parsing of the powermgmt DT node in
           that driver (Preeti U Murthy)"
      * tag 'pm+acpi-3.20-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpuidle: powernv: Avoid endianness conversions while parsing DT
        cpufreq: s3c: remove last use of resume_clocks callback
        cpufreq: s3c: remove incorrect __init annotations
        ACPI / LPSS: Deassert resets for SPI host controllers on Braswell
        ACPI / LPSS: Always disable I2C host controllers
        ACPI / resources: Change pr_info() to pr_debug() for debug information
        ACPI / video: Disable native backlight on Samsung Series 9 laptops
        cpuidle: powernv: Read target_residency value of idle states from DT if available
        Revert "ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C"
        ACPI / EC: Remove non-standard log emphasis
        PNP: Switch from __check_region() to __request_region()
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 2bfedd1d
      Linus Torvalds authored
      Pull followup block layer updates from Jens Axboe:
       "Two things in this pull request:
         - A block throttle oops fix (marked for stable) from Thadeu.
         - The NVMe fixes/features queued up for 3.20, but merged later in the
           process.  From Keith.  We should have gotten this merged earlier,
           we're ironing out the kinks in the process.  Will be ready for the
           initial pull next series"
      * 'for-linus' of git://git.kernel.dk/linux-block:
        blk-throttle: check stats_cpu before reading it from sysfs
        NVMe: Fix potential corruption on sync commands
        NVMe: Remove unused variables
        NVMe: Fix scsi mode select llbaa setting
        NVMe: Fix potential corruption during shutdown
        NVMe: Asynchronous controller probe
        NVMe: Register management handle under nvme class
        NVMe: Update SCSI Inquiry VPD 83h translation
        NVMe: Metadata format support
    • Linus Torvalds's avatar
      Merge tag 'dm-3.20-changes-2' of... · a911dcdb
      Linus Torvalds authored
      Merge tag 'dm-3.20-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
      Pull more device mapper changes from Mike Snitzer:
      - Significant dm-crypt CPU scalability performance improvements thanks
        to changes that enable effective use of an unbound workqueue across
        all available CPUs.  A large battery of tests were performed to
        validate these changes, summary of results is available here:
      - A few additional stable fixes (to DM core, dm-snapshot and dm-mirror)
        and a small fix to the dm-space-map-disk.
      * tag 'dm-3.20-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm snapshot: fix a possible invalid memory access on unload
        dm: fix a race condition in dm_get_md
        dm crypt: sort writes
        dm crypt: add 'submit_from_crypt_cpus' option
        dm crypt: offload writes to thread
        dm crypt: remove unused io_pool and _crypt_io_pool
        dm crypt: avoid deadlock in mempools
        dm crypt: don't allocate pages for a partial request
        dm crypt: use unbound workqueue for request processing
        dm io: reject unsupported DISCARD requests with EOPNOTSUPP
        dm mirror: do not degrade the mirror on discard error
        dm space map disk: fix sm_disk_count_is_more_than_one()
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · e20d3ef5
      Linus Torvalds authored
      Pull SCSI target updates from Nicholas Bellinger:
       "The highlights this round include:
         - Update vhost-scsi to support F_ANY_LAYOUT using mm/iov_iter.c
           logic, and signal VERSION_1 support (MST + Viro + nab)
         - Fix iscsi/iser-target to remove problematic active_ts_set usage
           (Gavin Guo)
         - Update iscsi/iser-target to support multi-sequence sendtargets
         - Fix original PR_APTPL_BUF_LEN 8k size limitation (Martin Svec)
         - Add missing WRITE_SAME end-of-device sanity check (Bart)
         - Check for LBA + sectors wrap-around in sbc_parse_cdb() (nab)
         - Other various minor SPC/SBC compliance fixes based upon Ronnie
           Sahlberg test suite (nab)"
      * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (32 commits)
        target: Set LBPWS10 bit in Logical Block Provisioning EVPD
        target: Fail UNMAP when emulate_tpu=0
        target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0
        target: Add sanity checks for DPO/FUA bit usage
        target: Perform PROTECT sanity checks for WRITE_SAME
        target: Fail I/O with PROTECT bit when protection is unsupported
        target: Check for LBA + sectors wrap-around in sbc_parse_cdb
        target: Add missing WRITE_SAME end-of-device sanity check
        iscsi-target: Avoid IN_LOGOUT failure case for iser-target
        target: Fix PR_APTPL_BUF_LEN buffer size limitation
        iscsi-target: Drop problematic active_ts_list usage
        iscsi/iser-target: Support multi-sequence sendtargets text response
        iser-target: Remove duplicate function names
        vhost/scsi: potential memory corruption
        vhost/scsi: Global tcm_vhost -> vhost_scsi rename
        vhost/scsi: Drop left-over scsi_tcq.h include
        vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits
        vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq
        vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisites
        vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + len
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 1acd2de5
      Linus Torvalds authored
      Pull more input updates from Dmitry Torokhov:
       "The second round of updates for the input subsystem.
        Updates to ALPS an bfin_roraty drivers and a couple oother fixups"
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: psmouse - use IS_ENABLED instead of homegrown code
        Input: bfin_rotary - introduce open and close methods
        Input: bfin_rotary - convert to use managed resources
        Input: bfin_rotary - use generic IO functions
        Input: bfin_rotary - move pin lists into into platform data
        Input: bfin_rotary - move platform header to linux/platform_data
        Input: bfin_rotary - mark suspend and resume code as __maybe_unused
        Input: bfin_rotary - fix potential oops in interrupt handler
        Input: ALPS - move v7 packet info to Documentation and v6 packet info
        Input: ALPS - fix confusing comment in protocol data
        Input: ALPS - do not mix trackstick and external PS/2 mouse data
        Input: ALPS - fix trackstick detection on some Dell Latitudes
        Input: ALPS - consolidate setting protocol parameters
        Input: ALPS - split protocol data from model info
        Input: ALPS - make Rushmore a separate protocol
        Input: ALPS - renumber protocol numbers
        Input: adi - remove an unnecessary check
        Input: pxa27x_keypad - remove an unneeded NULL check
        Input: soc_button_array - use "Windows" key for "Home"
    • Linus Torvalds's avatar
      Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband · b5ccb078
      Linus Torvalds authored
      Pull InfiniBand/RDMA updates from Roland Dreier:
       - Re-enable on-demand paging changes with stable ABI
       - Fairly large set of ocrdma HW driver fixes
       - Some qib HW driver fixes
       - Other miscellaneous changes
      * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (43 commits)
        IB/qib: Add blank line after declaration
        IB/qib: Fix checkpatch warnings
        IB/mlx5: Enable the ODP capability query verb
        IB/core: Add on demand paging caps to ib_uverbs_ex_query_device
        IB/core: Add support for extended query device caps
        RDMA/cxgb4: Don't hang threads forever waiting on WR replies
        RDMA/ocrdma: Fix off by one in ocrdma_query_gid()
        RDMA/ocrdma: Use unsigned for bit index
        RDMA/ocrdma: Help gcc generate better code for ocrdma_srq_toggle_bit
        RDMA/ocrdma: Update the ocrdma module version string
        RDMA/ocrdma: set vlan present bit for user AH
        RDMA/ocrdma: remove reference of ocrdma_dev out of ocrdma_qp structure
        RDMA/ocrdma: Add support for interrupt moderation
        RDMA/ocrdma: Honor return value of ocrdma_resolve_dmac
        RDMA/ocrdma: Allow expansion of the SQ CQEs via buddy CQ expansion of the QP
        RDMA/ocrdma: Discontinue support of RDMA-READ-WITH-INVALIDATE
        RDMA/ocrdma: Host crash on destroying device resources
        RDMA/ocrdma: Report correct state in ibv_query_qp
        RDMA/ocrdma: Debugfs enhancments for ocrdma driver
        RDMA/ocrdma: Report correct count of interrupt vectors while registering ocrdma device
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 29532455
      Linus Torvalds authored
      Pull i2c updates from Wolfram Sang:
         - legacy PM code removed from the core, there were no users anymore
           (thanks to Lars-Peter Clausen)
         - new driver for Broadcom iProc
         - bigger driver updates for designware, rk3x, cadence, ocores
         - a bunch of smaller updates and bugfixes"
      * 'i2c/for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (31 commits)
        i2c: ocores: rework clk code to handle NULL cookie
        i2c: designware-baytrail: another fixup for proper Kconfig dependencies
        i2c: fix reference to functionality constants definition
        i2c: iproc: Add Broadcom iProc I2C Driver
        i2c: designware-pci: update Intel copyright line
        i2c: ocores: add common clock support
        i2c: hix5hd2: add COMPILE_TEST
        i2c: clarify comments about the dev_released completion
        i2c: ocores: fix clock-frequency binding usage
        i2c: tegra: Maintain CPU endianness
        i2c: designware-baytrail: use proper Kconfig dependencies
        i2c: designware: Do not calculate SCL timing parameters needlessly
        i2c: do not try to load modules for of-registered devices
        i2c: designware: Add Intel Baytrail PMIC I2C bus support
        i2c: designware: Add i2c bus locking support
        of: i2c: Add i2c-mux-idle-disconnect DT property to PCA954x mux driver
        i2c: designware: use {readl|writel}_relaxed instead of readl/writel
        i2c: designware-pci: no need to provide clk_khz
        i2c: designware-pci: remove Moorestown support
        i2c: imx: whitespace and checkpatch cleanup
    • Linus Torvalds's avatar
      Merge tag 'clk-for-linus-3.20' of git://git.linaro.org/people/mike.turquette/linux · 18a8d499
      Linus Torvalds authored
      Pull clock framework updates from Mike Turquette:
       "The clock framework changes contain the usual driver additions,
        enhancements and fixes mostly for ARM32, ARM64, MIPS and Power-based
        Additionally the framework core underwent a bit of surgery with two
        major changes:
         - The boundary between the clock core and clock providers (e.g clock
           drivers) is now more well defined with dedicated provider helper
           functions.  struct clk no longer maps 1:1 with the hardware clock
           but is a true per-user cookie which helps us tracker users of
           hardware clocks and debug bad behavior.
         - The addition of rate constraints for clocks.  Rate ranges are now
           supported which are analogous to the voltage ranges in the
           regulator framework.
        Unfortunately these changes to the core created some breakeage.  We
        think we fixed it all up but for this reason there are lots of last
        minute commits trying to undo the damage"
      * tag 'clk-for-linus-3.20' of git://git.linaro.org/people/mike.turquette/linux: (113 commits)
        clk: Only recalculate the rate if needed
        Revert "clk: mxs: Fix invalid 32-bit access to frac registers"
        clk: qoriq: Add support for the platform PLL
        powerpc/corenet: Enable CLK_QORIQ
        clk: Replace explicit clk assignment with __clk_hw_set_clk
        clk: Add __clk_hw_set_clk helper function
        clk: Don't dereference parent clock if is NULL
        MIPS: Alchemy: Remove bogus args from alchemy_clk_fgcs_detr
        clkdev: Always allocate a struct clk and call __clk_get() w/ CCF
        clk: shmobile: div6: Avoid division by zero in .round_rate()
        clk: mxs: Fix invalid 32-bit access to frac registers
        clk: omap: compile legacy omap3 clocks conditionally
        clkdev: Export clk_register_clkdev
        clk: Add rate constraints to clocks
        clk: remove clk-private.h
        pci: xgene: do not use clk-private.h
        arm: omap2+ remove dead clock code
        clk: Make clk API return per-user struct clk instances
        clk: tegra: Define PLLD_DSI and remove dsia(b)_mux
        clk: tegra: Add support for the Tegra132 CAR IP block
    • Linus Torvalds's avatar
      Merge tag 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio · c189cb8e
      Linus Torvalds authored
      Pull VFIO updates from Alex Williamson:
       - IOMMU updates based on trace analysis
       - VFIO device request interface
      * tag 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio:
        vfio-pci: Add device request interface
        vfio-pci: Generalize setup of simple eventfds
        vfio: Add and use device request op for vfio bus drivers
        vfio: Tie IOMMU group reference to vfio group
        vfio: Add device tracking during unbind
        vfio/type1: Add conditional rescheduling
        vfio/type1: Chunk contiguous reserved/invalid page mappings
        vfio/type1: DMA unmap chunking
    • Linus Torvalds's avatar
      Merge tag 'sound-fix-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · a2a6937d
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "Here are a few small fix patches for 3.20-rc1:
         - Quirks for Denon and Lifecam USB-audio devices and HD-audio on HP
         - A long-time regression fix for HDSP eMADI
         - Add missing DRAIN_TRIGGER flag set for ASoC intel-sst
         - Trivial fixes for sequencer core and HD-audio Tegra, a LINE6
      * tag 'sound-fix-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: usb: Fix support for Denon DA-300USB DAC (ID 154e:1003)
        ASoC: Intel: add SNDRV_PCM_INFO_DRAIN_TRIGGER flag
        ALSA: usb-audio: Don't attempt to get Lifecam HD-5000 sample rate
        ALSA: hda/tegra check correct return value from ioremap_resource
        ALSA: hdspm - Constrain periods to 2 on older cards
        ALSA: hda - enable mute led quirk for one more hp machine.
        ALSA: seq: potential out of bounds in do_control()
        ALSA: line6: Improve line6_read/write_data() interfaces
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · f5e25f0d
      Linus Torvalds authored
      Pull thermal management fix from Zhang Rui:
       "One patch to fix a problem that all Exynos SoCs will break at boot
      * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
        thermal: exynos: fix: Check if data->tmu_read callback is present before read
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · d34696c2
      Linus Torvalds authored
      Pull s390 fixes from Martin Schwidefsky:
       "Two patches to save some memory if CONFIG_NR_CPUS is large, a changed
        default for the use of compare-and-delay, and a couple of bug fixes"
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/spinlock: disabled compare-and-delay by default
        s390/mm: align 64-bit PIE binaries to 4GB
        s390/cacheinfo: coding style changes
        s390/cacheinfo: fix shared cpu masks
        s390/smp: reduce size of struct pcpu
        s390/topology: convert cpu_topology array to per cpu variable
        s390/topology: delay initialization of topology cpu masks
        s390/vdso: fix clock_gettime for CLOCK_THREAD_CPUTIME_ID, -2 and -3
    • Linus Torvalds's avatar
      Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f9677375
      Linus Torvalds authored
      Pull Intel Quark SoC support from Ingo Molnar:
       "This adds support for Intel Quark X1000 SoC boards, used in the low
        power 32-bit x86 Intel Galileo microcontroller board intended for the
        Arduino space.
        There's been some preparatory core x86 patches for Quark CPU quirks
        merged already, but this rounds it all up and adds Kconfig enablement.
        It's a clean hardware enablement addition tree at this point"
      * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/intel/quark: Fix simple_return.cocci warnings
        x86/intel/quark: Fix ptr_ret.cocci warnings
        x86/intel/quark: Add Intel Quark platform support
        x86/intel/quark: Add Isolated Memory Regions for Quark X1000
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f3c233d7
      Linus Torvalds authored
      Pull ntp fix from Ingo Molnar:
       "An adjtimex interface regression fix for 32-bit systems"
      [ A check that was added in a previous commit is really only a concern
        for 64bit systems, but was applied to both 32 and 64bit systems, which
        results in breaking 32bit systems.
        Thus the fix here is to make the check only apply to 64bit systems ]
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        ntp: Fixup adjtimex freq validation on 32-bit systems