1. 25 Sep, 2014 7 commits
  2. 22 Sep, 2014 17 commits
  3. 16 Sep, 2014 3 commits
  4. 15 Sep, 2014 8 commits
    • Linus Torvalds's avatar
      Merge tag 'regmap-v3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · 2324067f
      Linus Torvalds authored
      Pull regmap fix from Mark Brown:
       "Fix registers file in debugfs
        Ensure that the mode reported for the registers file in debugfs is
        accurate by marking it as read only when the define to enable writes
        has not been set.  This is on the edge of being a bug fix but it's
        debugfs and it makes it much easier for users to spot what's going
        wrong when they forget to enable writeability"
      * tag 'regmap-v3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: Fix debugfs-file 'registers' mode
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · b9217862
      Linus Torvalds authored
      Pull input updates from Dmitry Torokhov:
       "A few quirks for i8042/AT keyboards and a small device tree doc fix
        for Atmel Touchscreens"
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: atmel_mxt_ts - fix merge in DT documentation
        Input: i8042 - also set the firmware id for MUXed ports
        Input: i8042 - add nomux quirk for Avatar AVIU-145A6
        Input: i8042 - add Fujitsu U574 to no_timeout dmi table
        Input: atkbd - do not try 'deactivate' keyboard on any LG laptops
    • Tony Luck's avatar
      ia64: Fix syscall number for memfd_create · f3b59331
      Tony Luck authored
      Cut & paste typo from the line above.
      Reported-by: default avatarBen Hutchings <ben@decadent.org.uk>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      vfs: simplify and shrink stack frame of link_path_walk() · d6bb3e90
      Linus Torvalds authored
      Commit 9226b5b4
       ("vfs: avoid non-forwarding large load after small
      store in path lookup") made link_path_walk() always access the
      "hash_len" field as a single 64-bit entity, in order to avoid mixed size
      accesses to the members.
      However, what I didn't notice was that that effectively means that the
      whole "struct qstr this" is now basically redundant.  We already
      explicitly track the "const char *name", and if we just use "u64
      hash_len" instead of "long len", there is nothing else left of the
      "struct qstr".
      We do end up wanting the "struct qstr" if we have a filesystem with a
      "d_hash()" function, but that's a rare case, and we might as well then
      just squirrell away the name and hash_len at that point.
      End result: fewer live variables in the loop, a smaller stack frame, and
      better code generation.  And we don't need to pass in pointers variables
      to helper functions any more, because the return value contains all the
      relevant information.  So this removes more lines than it adds, and the
      source code is clearer too.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 3630056d
      Linus Torvalds authored
      Pull crypto fixes from Herbert Xu:
       "This fixes the newly added drbg generator so that it actually works on
        32-bit machines.  Previously the code was only tested on 64-bit and on
        32-bit it overflowed and simply doesn't work"
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: drbg - remove check for uninitialized DRBG handle
        crypto: drbg - backport "fix maximum value checks on 32 bit systems"
    • Linus Torvalds's avatar
      Linux 3.17-rc5 · 9e82bf01
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 83373f70
      Linus Torvalds authored
      Pull vfs fixes from Al Viro:
       "double iput() on failure exit in lustre, racy removal of spliced
        dentries from ->s_anon in __d_materialise_dentry() plus a bunch of
        assorted RCU pathwalk fixes"
      The RCU pathwalk fixes end up fixing a couple of cases where we
      incorrectly dropped out of RCU walking, due to incorrect initialization
      and testing of the sequence locks in some corner cases.  Since dropping
      out of RCU walk mode forces the slow locked accesses, those corner cases
      slowed down quite dramatically.
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        be careful with nd->inode in path_init() and follow_dotdot_rcu()
        don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu()
        fix bogus read_seqretry() checks introduced in b37199e6
        move the call of __d_drop(anon) into __d_materialise_unique(dentry, anon)
        [fix] lustre: d_make_root() does iput() on dentry allocation failure
    • Linus Torvalds's avatar
      vfs: avoid non-forwarding large load after small store in path lookup · 9226b5b4
      Linus Torvalds authored
      The performance regression that Josef Bacik reported in the pathname
      lookup (see commit 99d263d4
       "vfs: fix bad hashing of dentries") made
      me look at performance stability of the dcache code, just to verify that
      the problem was actually fixed.  That turned up a few other problems in
      this area.
      There are a few cases where we exit RCU lookup mode and go to the slow
      serializing case when we shouldn't, Al has fixed those and they'll come
      in with the next VFS pull.
      But my performance verification also shows that link_path_walk() turns
      out to have a very unfortunate 32-bit store of the length and hash of
      the name we look up, followed by a 64-bit read of the combined hash_len
      field.  That screws up the processor store to load forwarding, causing
      an unnecessary hickup in this critical routine.
      It's caused by the ugly calling convention for the "hash_name()"
      function, and easily fixed by just making hash_name() fill in the whole
      'struct qstr' rather than passing it a pointer to just the hash value.
      With that, the profile for this function looks much smoother.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  5. 14 Sep, 2014 5 commits
    • Linus Torvalds's avatar
      Merge branch 'parisc-3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 5910cfdc
      Linus Torvalds authored
      Pull parisc updates from Helge Deller:
       "The most important patch is a new Light Weigth Syscall (LWS) for 8,
        16, 32 and 64 bit atomic CAS operations which is required in order to
        be able to implement the atomic gcc builtins on our platform.
        Other than that, we wire up the seccomp, getrandom and memfd_create
        syscalls, fixes a minor off-by-one bug and a wrong printk string"
      * 'parisc-3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Implement new LWS CAS supporting 64 bit operations.
        parisc: Wire up seccomp, getrandom and memfd_create syscalls
        parisc: dino: fix %d confusingly prefixed with 0x in format string
        parisc: sys_hpux: NUL terminator is one past the end
    • Al Viro's avatar
      be careful with nd->inode in path_init() and follow_dotdot_rcu() · 4023bfc9
      Al Viro authored
      in the former we simply check if dentry is still valid after picking
      its ->d_inode; in the latter we fetch ->d_inode in the same places
      where we fetch dentry and its ->d_seq, under the same checks.
      Cc: stable@vger.kernel.org # 2.6.38+
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Al Viro's avatar
      don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu() · 7bd88377
      Al Viro authored
      return the value instead, and have path_init() do the assignment.  Broken by
      "vfs: Fix absolute RCU path walk failures due to uninitialized seq number",
      which was Cc-stable with 2.6.38+ as destination.  This one should go where
      it went.
      To avoid dummy value returned in case when root is already set (it would do
      no harm, actually, since the only caller that doesn't ignore the return value
      is guaranteed to have nd->root *not* set, but it's more obvious that way),
      lift the check into callers.  And do the same to set_root(), to keep them
      in sync.
      Cc: stable@vger.kernel.org # 2.6.38+
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    • Linus Torvalds's avatar
      Merge tag 'ntb-3.17' of git://github.com/jonmason/ntb · 02c1be3d
      Linus Torvalds authored
      Pull ntb driver bugfixes from Jon Mason:
       "NTB driver fixes for queue spread and buffer alignment.  Also, update
        to MAINTAINERS to reflect new e-mail address"
      * tag 'ntb-3.17' of git://github.com/jonmason/ntb:
        ntb: Add alignment check to meet hardware requirement
        MAINTAINERS: update NTB info
        NTB: correct the spread of queues over mw's
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 8ac19f0d
      Linus Torvalds authored
      Pull ARM irq chip fixes from Thomas Gleixner:
       "Another pile of ARM specific irq chip fixlets:
         - off by one bugs in the crossbar driver
         - missing annotations
         - a bunch of "make it compile" updates
        I pulled the lot today from Jason, but it has been in -next for at
        least a week"
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip: gic-v3: Declare rdist as __percpu pointer to __iomem pointer
        irqchip: gic: Make gic_default_routable_irq_domain_ops static
        irqchip: exynos-combiner: Fix compilation error on ARM64
        irqchip: crossbar: Off by one bugs in init
        irqchip: gic-v3: Tag all low level accessors __maybe_unused
        irqchip: gic-v3: Only define gic_peek_irq() when building SMP