Some code in mm/slab.c and mm/slub.c use whitespaces in indent.
Clean them up.
Signed-off-by: NLQYMGT <lqymgt@gmail.com>
Acked-by: NChristoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

At one place we assign major number we found to ret.  That assignment is
then never used and actually doesn't make any sense given how the code is
currently structured (the assignment comes from pre-git times).  Just
remove it.

Coverity id: 1226852.
Signed-off-by: NJan Kara <jack@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In commit 1faf2894 ("ocfs2_dlm: disallow a domain join if node maps
mismatch") we introduced a new earlier NULL check so this one is not
needed.  Also static checkers complain because we dereference it first
and then check for NULL.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

"inode" isn't NULL here, and also we dereference it on the previous line
so static checkers get annoyed.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Do not set the filesystem readonly if the storage link is down.  In this
case, metadata is not corrupted and only -EIO is returned.  And if it is
indeed corrupted metadata, it has already called ocfs2_error() in
ocfs2_validate_inode_block().
Signed-off-by: NYiwen Jiang <jiangyiwen@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ocfs2_readpages() use nonblocking flag to avoid page lock inversion.  It
will trigger cluster hang because that flag OCFS2_LOCK_UPCONVERT_FINISHING
is not cleared if nonblocking lock cannot be granted at once.  The flag
would prevent dc thread from downconverting.  So other nodes cannot
acheive this lockres for ever.

So we should not set OCFS2_LOCK_UPCONVERT_FINISHING when receiving ast if
nonblocking lock had already returned.
Signed-off-by: Njoyce.xue <xuejiufei@huawei.com>
Reviewed-by: NJunxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Error handling if creation of root of debugfs in ocfs2_init() fails is
broken.  Although error code is set we fail to exit ocfs2_init() with
error and thus initialization ends with success.  Later when mounting a
filesystem, ocfs2 debugfs entries end up being created in the root of
debugfs filesystem which is confusing.

Fix the error handling to bail out.

Coverity id: 1227009.
Signed-off-by: NJan Kara <jack@suse.cz>
Reviewed-by: NJoseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Filesize is not a good indication that the file needs to be synced.
An example where this breaks is:
 1. Open the file in O_SYNC|O_RDWR
 2. Read a small portion of the file (say 64 bytes)
 3. Lseek to starting of the file
 4. Write 64 bytes

If the node crashes, it is not written out to disk because this was not
committed in the journal and the other node which reads the file after
recovery reads stale data (even if the write on the other node was
successful)
Signed-off-by: NGoldwyn Rodrigues <rgoldwyn@suse.de>
Reviewed-by: NMark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Set nn_persistent_error to -ENOTCONN will stop reconnect since the
"stop" condition in o2net_start_connect() will be true.

    stop = (nn->nn_sc ||
                (nn->nn_persistent_error &&
                (nn->nn_persistent_error != -ENOTCONN || timeout == 0)));

This will make connection never be established if the first connection
request is lost.

Set nn_persistent_error to 0 when connect expired to fix this.  With
this changes, dlm will not be waken up when connect expired, this is OK
since dlm depends on network, dlm can do nothing in this case if waken
up.  Let it wait there for network recover and connect built again to
continue.
Signed-off-by: NJunxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: NSrinivas Eeda <srinivas.eeda@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Node A sends master query request to node B which is the master.  At this
time lockres happens to be on purgelist.  dlm_master_request_handler gets
the dlm spinlock, finds the resource and releases the dlm spin lock.
Right at this dlm_thread on this node could purge the lockres.
dlm_master_request_handler can then acquire lockres spinlock and reply to
Node A that node B is the master even though lockres on node B is purged.

The above scenario will now make node A falsely think node B is the master
which is inconsistent.  Further if another node C tries to master the same
resource, every node will respond they are not the master.  Node C then
masters the resource and sends assert master to all nodes.  This will now
make node A crash with the following message.

dlm_assert_master_handler:1831 ERROR: DIE! Mastery assert from 9, but current
owner is 10!
Signed-off-by: NSrinivas Eeda <srinivas.eeda@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: NWengang Wang <wen.gang.wang@oracle.com>
Tested-by: NJoseph Qi <joseph.qi@huawei.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Report return value of o2hb_do_disk_heartbeat() as a part of ML_HEARTBEAT
message so that we know whether a heartbeat actually happened or not.
This also makes assigned but otherwise unused 'ret' variable used.

Coverity id: 1227053.
Signed-off-by: NJan Kara <jack@suse.cz>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

'args' are always set for ocfs2_read_locked_inode() and brelse() checks
whether bh is NULL.  So the test (args && bh) is unnecessary (plus the
args part is really confusing anyway).  Remove it.

Coverity id: 1128856.
Signed-off-by: NJan Kara <jack@suse.cz>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ocfs2_get_xattr_nolock() checks whether inode has any extended attributes
(OCFS2_HAS_XATTR_FL).  If not, it just sets 'ret' to -ENODATA but
continues with checking inline and external attributes anyway (which is
pointless although it does not harm).  Just return immediately when we
know there are no extended attributes in the inode.

Coverity id: 1226906.
Signed-off-by: NJan Kara <jack@suse.cz>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The ->si_slots[] array is allocated in ocfs2_init_slot_info() it has
"->max_slots" number of elements so this test should be >= instead of >.

Static checker work.  Compile tested only.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Do not BUG() if GFP_ATOMIC allocation fails in dlm_dispatch_assert_master.
Instead, return -ENOMEM to the sender and then retry.
Signed-off-by: NJoseph Qi <joseph.qi@huawei.com>
Reviewed-by: NAlex Chen <alex.chen@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This off by one bug is harmless but it upsets the static checkers and the
code is obvious so it doesn't hurt to fix it.  The Smatch warning is:

    arch/sh/mm/numa.c:47 setup_bootmem_node()
    error: buffer overflow 'node_data' 1024 <= 1024
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The change from \d+ to .+ inside __aligned() means that the following
structure:

  struct test {
        u8 a __aligned(2);
        u8 b __aligned(2);
  };

essentially gets modified to

  struct test {
        u8 a;
  };

for purposes of kernel-doc, thus dropping a struct member, which in
turns causes warnings and invalid kernel-doc generation.

Fix this by replacing the catch-all (".") with anything that's not a
semicolon ("[^;]").

Fixes: 9dc30918 ("scripts/kernel-doc: handle struct member __aligned without numbers")
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

dma_debug_init() is called by architecture specific code at different
levels, but typically as a fs_initcall due to the debugfs initialization.
Some platforms may have early callers of the DMA-API, running prior to the
fs_initcall() level, which is not much of an issue unless
CONFIG_DMA_API_DEBUG is set.  When the DMA-API debugging facilities are
turned on a caller will go through:

debug_dma_map_{single,page}
  -> dma_mapping_error (inline function usually)
    -> debug_dma_mapping_error
      -> get_hash_bucket

Calling get_hash_bucket() returns a valid hash value since we hash on high
bits of the dma_addr cookie, but we will grab an unitialized spinlock,
which typically won't crash but produce a warning, the real crash will
however happen during the bucket list traversal because the list has not
been initialized yet.

An obvious solution is of course to move some of the offenders to run
after the fs_initcall level, but since this might not always be an option,
we add a flag "dma_debug_initialized" which is set to false by default,
and set to true once dma_debug_init() has had a chance to run.

The dma_debug_disabled() helper function previously introduced just needs
to check for dma_debug_initialized to allow the caller to proceed or not.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Horia Geanta <horia.geanta@freescale.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a helper function which returns whether the DMA debugging API is
disabled, right now we only check for global_disable, but in order to
accommodate early callers of the DMA-API, we will check for more
initialization flags in the next patch.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Horia Geanta <horia.geanta@freescale.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

kcalloc manages count*sizeof overflow.
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: Steve French <sfrench@samba.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

kcalloc manages count*sizeof overflow.
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: Steve French <sfrench@samba.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Replace all __constant_foo to foo() except in smb2status.h (1700 lines to
update).
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: Steve French <sfrench@samba.org>
Cc: Jeff Layton <jlayton@poochiereds.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

high_memory isn't direct mapped memory so retrieving it's physical address
isn't appropriate.  But, it would be useful to check physical address of
highmem boundary so it's justfiable to get physical address from it.  In
x86, there is a validation check if CONFIG_DEBUG_VIRTUAL and it triggers
following boot failure reported by Ingo.

  ...
  BUG: Int 6: CR2 00f06f53
  ...
  Call Trace:
    dump_stack+0x41/0x52
    early_idt_handler+0x6b/0x6b
    cma_declare_contiguous+0x33/0x212
    dma_contiguous_reserve_area+0x31/0x4e
    dma_contiguous_reserve+0x11d/0x125
    setup_arch+0x7b5/0xb63
    start_kernel+0xb8/0x3e6
    i386_start_kernel+0x79/0x7d

To fix boot regression, this patch implements workaround to avoid
validation check in x86 when retrieving physical address of high_memory.
__pa_nodebug() used by this patch is implemented only in x86 so there is
no choice but to use dirty #ifdef.

[akpm@linux-foundation.org: tweak comment]
Signed-off-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com>
Reported-by: NIngo Molnar <mingo@kernel.org>
Tested-by: NIngo Molnar <mingo@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull more 2038 timer work from Thomas Gleixner:
 "Two more patches for the ongoing 2038 work:

   - New accessors to clock MONOTONIC and REALTIME seconds

  This is a seperate branch as Arnd has follow up work depending on
  this"

* 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Provide y2038 safe accessor to the seconds portion of CLOCK_REALTIME
  timekeeping: Provide fast accessor to the seconds part of CLOCK_MONOTONIC

Pull x86 MPX support from Thomas Gleixner:
 "This enables support for x86 MPX.

  MPX is a new debug feature for bound checking in user space.  It
  requires kernel support to handle the bound tables and decode the
  bound violating instruction in the trap handler"

* 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  asm-generic: Remove asm-generic arch_bprm_mm_init()
  mm: Make arch_unmap()/bprm_mm_init() available to all architectures
  x86: Cleanly separate use of asm-generic/mm_hooks.h
  x86 mpx: Change return type of get_reg_offset()
  fs: Do not include mpx.h in exec.c
  x86, mpx: Add documentation on Intel MPX
  x86, mpx: Cleanup unused bound tables
  x86, mpx: On-demand kernel allocation of bounds tables
  x86, mpx: Decode MPX instruction to get bound violation information
  x86, mpx: Add MPX-specific mmap interface
  x86, mpx: Introduce VM_MPX to indicate that a VMA is MPX specific
  x86, mpx: Add MPX to disabled features
  ia64: Sync struct siginfo with general version
  mips: Sync struct siginfo with general version
  mpx: Extend siginfo structure to include bound violation information
  x86, mpx: Rename cfg_reg_u and status_reg
  x86: mpx: Give bndX registers actual names
  x86: Remove arbitrary instruction size limit in instruction decoder

Pull irq domain updates from Thomas Gleixner:
 "The real interesting irq updates:

   - Support for hierarchical irq domains:

     For complex interrupt routing scenarios where more than one
     interrupt related chip is involved we had no proper representation
     in the generic interrupt infrastructure so far.  That made people
     implement rather ugly constructs in their nested irq chip
     implementations.  The main offenders are x86 and arm/gic.

     To distangle that mess we have now hierarchical irqdomains which
     seperate the various interrupt chips and connect them via the
     hierarchical domains.  That keeps the domain specific details
     internal to the particular hierarchy level and removes the
     criss/cross referencing of chip internals.  The resulting hierarchy
     for a complex x86 system will look like this:

        vector          mapped: 74
          msi-0         mapped: 2
          dmar-ir-1     mapped: 69
            ioapic-1    mapped: 4
            ioapic-0    mapped: 20
            pci-msi-2   mapped: 45
          dmar-ir-0     mapped: 3
            ioapic-2    mapped: 1
            pci-msi-1   mapped: 2
          htirq         mapped: 0

     Neither ioapic nor pci-msi know about the dmar interrupt remapping
     between themself and the vector domain.  If interrupt remapping is
     disabled ioapic and pci-msi become direct childs of the vector
     domain.

     In hindsight we should have done that years ago, but in hindsight
     we always know better :)

   - Support for generic MSI interrupt domain handling

     We have more and more non PCI related MSI interrupts, so providing
     a generic infrastructure for this is better than having all
     affected architectures implementing their own private hacks.

   - Support for PCI-MSI interrupt domain handling, based on the generic
     MSI support.

     This part carries the pci/msi branch from Bjorn Helgaas pci tree to
     avoid a massive conflict.  The PCI/MSI parts are acked by Bjorn.

  I have two more branches on top of this.  The full conversion of x86
  to hierarchical domains and a partial conversion of arm/gic"

* 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  genirq: Move irq_chip_write_msi_msg() helper to core
  PCI/MSI: Allow an msi_controller to be associated to an irq domain
  PCI/MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from irqdomain
  PCI/MSI: Enhance core to support hierarchy irqdomain
  PCI/MSI: Move cached entry functions to irq core
  genirq: Provide default callbacks for msi_domain_ops
  genirq: Introduce msi_domain_alloc/free_irqs()
  asm-generic: Add msi.h
  genirq: Add generic msi irq domain support
  genirq: Introduce callback irq_chip.irq_write_msi_msg
  genirq: Work around __irq_set_handler vs stacked domains ordering issues
  irqdomain: Introduce helper function irq_domain_add_hierarchy()
  irqdomain: Implement a method to automatically call parent domains alloc/free
  genirq: Introduce helper irq_domain_set_info() to reduce duplicated code
  genirq: Split out flow handler typedefs into seperate header file
  genirq: Add IRQ_SET_MASK_OK_DONE to support stacked irqchip
  genirq: Introduce irq_chip.irq_compose_msi_msg() to support stacked irqchip
  genirq: Add more helper functions to support stacked irq_chip
  genirq: Introduce helper functions to support stacked irq_chip
  irqdomain: Do irq_find_mapping and set_type for hierarchy irqdomain in case OF
  ...

Pull irq core updates from Thomas Gleixner:
 "This is the first (boring) part of irq updates:

   - support for big endian I/O accessors in the generic irq chip

   - cleanup of brcmstb/bcm7120 drivers so they can be reused for non
     ARM SoCs

   - the usual pile of fixes and updates for the various ARM irq chips"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  irqchip: dw-apb-ictl: Add PM support
  irqchip: dw-apb-ictl: Enable IRQ_GC_MASK_CACHE_PER_TYPE
  irqchip: dw-apb-ictl: Always use use {readl|writel}_relaxed
  ARM: orion: convert the irq_reg_{readl,writel} calls to the new API
  irqchip: atmel-aic: Add missing entry for rm9200 irq fixups
  irqchip: atmel-aic: Rename at91sam9_aic_irq_fixup for naming consistency
  irqchip: atmel-aic: Add specific irq fixup function for sam9g45 and sam9rl
  irqchip: atmel-aic: Add irq fixups for at91sam926x SoCs
  irqchip: atmel-aic: Add irq fixup for RTT block
  irqchip: brcmstb-l2: Convert driver to use irq_reg_{readl,writel}
  irqchip: bcm7120-l2: Convert driver to use irq_reg_{readl,writel}
  irqchip: bcm7120-l2: Decouple driver from brcmstb-l2
  irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers
  irqchip: bcm7120-l2: Use gc->mask_cache to simplify suspend/resume functions
  irqchip: bcm7120-l2: Fix missing nibble in gc->unused mask
  irqchip: bcm7120-l2: Make sure all register accesses use base+offset
  irqchip: bcm7120-l2, brcmstb-l2: Remove ARM Kconfig dependency
  irqchip: bcm7120-l2: Eliminate bad IRQ check
  irqchip: brcmstb-l2: Eliminate dependency on ARM code
  genirq: Generic chip: Add big endian I/O accessors
  ...

Pull timer core updates from Thomas Gleixner:
 "The time(r) departement provides:

   - more infrastructure work on the year 2038 issue

   - a few fixes in the Armada SoC timers

   - the usual pile of fixlets and improvements"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: armada-370-xp: Use the reference clock on A375 SoC
  watchdog: orion: Use the reference clock on Armada 375 SoC
  clocksource: armada-370-xp: Add missing clock enable
  time: Fix sign bug in NTP mult overflow warning
  time: Remove timekeeping_inject_sleeptime()
  rtc: Update suspend/resume timing to use 64bit time
  rtc/lib: Provide y2038 safe rtc_tm_to_time()/rtc_time_to_tm() replacement
  time: Fixup comments to reflect usage of timespec64
  time: Expose get_monotonic_coarse64() for in-kernel uses
  time: Expose getrawmonotonic64 for in-kernel uses
  time: Provide y2038 safe mktime() replacement
  time: Provide y2038 safe timekeeping_inject_sleeptime() replacement
  time: Provide y2038 safe do_settimeofday() replacement
  time: Complete NTP adjustment threshold judging conditions
  time: Avoid possible NTP adjustment mult overflow.
  time: Rename udelay_test.c to test_udelay.c
  clocksource: sirf: Remove hard-coded clock rate

Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle are:

   - 'Nested Sleep Debugging', activated when CONFIG_DEBUG_ATOMIC_SLEEP=y.

     This instruments might_sleep() checks to catch places that nest
     blocking primitives - such as mutex usage in a wait loop.  Such
     bugs can result in hard to debug races/hangs.

     Another category of invalid nesting that this facility will detect
     is the calling of blocking functions from within schedule() ->
     sched_submit_work() -> blk_schedule_flush_plug().

     There's some potential for false positives (if secondary blocking
     primitives themselves are not ready yet for this facility), but the
     kernel will warn once about such bugs per bootup, so the warning
     isn't much of a nuisance.

     This feature comes with a number of fixes, for problems uncovered
     with it, so no messages are expected normally.

   - Another round of sched/numa optimizations and refinements, for
     CONFIG_NUMA_BALANCING=y.

   - Another round of sched/dl fixes and refinements.

  Plus various smaller fixes and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  sched: Add missing rcu protection to wake_up_all_idle_cpus
  sched/deadline: Introduce start_hrtick_dl() for !CONFIG_SCHED_HRTICK
  sched/numa: Init numa balancing fields of init_task
  sched/deadline: Remove unnecessary definitions in cpudeadline.h
  sched/cpupri: Remove unnecessary definitions in cpupri.h
  sched/deadline: Fix rq->dl.pushable_tasks bug in push_dl_task()
  sched/fair: Fix stale overloaded status in the busiest group finding logic
  sched: Move p->nr_cpus_allowed check to select_task_rq()
  sched/completion: Document when to use wait_for_completion_io_*()
  sched: Update comments about CLONE_NEWUTS and CLONE_NEWIPC
  sched/fair: Kill task_struct::numa_entry and numa_group::task_list
  sched: Refactor task_struct to use numa_faults instead of numa_* pointers
  sched/deadline: Don't check CONFIG_SMP in switched_from_dl()
  sched/deadline: Reschedule from switched_from_dl() after a successful pull
  sched/deadline: Push task away if the deadline is equal to curr during wakeup
  sched/deadline: Add deadline rq status print
  sched/deadline: Fix artificial overrun introduced by yield_task_dl()
  sched/rt: Clean up check_preempt_equal_prio()
  sched/core: Use dl_bw_of() under rcu_read_lock_sched()
  sched: Check if we got a shallowest_idle_cpu before searching for least_loaded_cpu
  ...

Pull leftover perf fixes from Ingo Molnar:
 "Two perf fixes left over from the previous cycle"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf session: Do not fail on processing out of order event
  x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs

Pull perf events update from Ingo Molnar:
 "On the kernel side there's few changes, the one that stands out is
  PEBS machine state sampling support on x86, by Stephane Eranian.

  On the tooling side:

  User visible tooling changes:

   - Don't open the DWARF info multiple times, keeping instead a dwfl
     handle in struct dso, greatly speeding up 'perf report' on powerpc.
     (Sukadev Bhattiprolu)

   - Introduce PARSE_OPT_DISABLED option flag and use it to avoid
     showing undersired options in tools that provides frontends to
     'perf record', like sched, kvm, etc (Namhyung Kim)

   - Fallback to kallsyms when using the minimal 'ELF' loader (Arnaldo
     Carvalho de Melo)

   - Fix annotation with kcore (Adrian Hunter)

   - Support source line numbers in annotate using a hotkey (Andi Kleen)

   - Callchain improvements including:
     * Enable printing the srcline in the history
     * Make get_srcline fall back to sym+offset (Andi Kleen)

   - TUI hist_entry browser fixes, including showing missing overhead
     value for first level callchain.  Detected comparing the output of
     --stdio/--gui (that matched) with --tui, that had this problem.
     (Namhyung Kim)

   - Support handling complete branch stacks as histograms (Andi Kleen)

  Tooling infrastructure changes:

   - Prep work for supporting per-pkg and snapshot counters in 'perf
     stat' (Jiri Olsa)

   - 'perf stat' refactorings, moving stuff from it to evsel.c to use in
     per-pkg/snapshot format changes (Jiri Olsa)

   - Add per-pkg format file parsing (Matt Fleming)

   - Clean up libelf feature support code (Namhyung Kim)

   - Add gzip decompression support for kernel modules (Namhyung Kim)

   - More prep patches for Intel PT, including a a thread stack and more
     stuff made available via the database export mechanism (Adrian
     Hunter)

   - More Intel PT work, including a facility to export sample data
     (comms, threads, symbol names, etc) in a database friendly way,
     with an script to use this to create a postgresql database.
     (Adrian Hunter)

   - Make sure that thread->mg->machine points to the machine where the
     thread exists (it was being set only for the kmaps kernel modules
     case, do it as well for the mmaps) and use it to shorten function
     signatures (Arnaldo Carvalho de Melo)

  ... and lots of other fixes and smaller improvements"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (91 commits)
  perf report: In branch stack mode use address history sorting
  perf report: Add --branch-history option
  perf callchain: Support handling complete branch stacks as histograms
  perf stat: Add support for snapshot counters
  perf stat: Add support for per-pkg counters
  perf tools: Remove perf_evsel__read interface
  perf stat: Use read_counter in read_counter_aggr
  perf stat: Make read_counter work over the thread dimension
  perf stat: Use perf_evsel__read_cb in read_counter
  perf tools: Add snapshot format file parsing
  perf tools: Add per-pkg format file parsing
  perf evsel: Introduce perf_evsel__read_cb function
  perf evsel: Introduce perf_counts_values__scale function
  perf evsel: Introduce perf_evsel__compute_deltas function
  perf tools: Allow to force redirect pr_debug to stderr.
  perf tools: Fix segfault due to invalid kernel dso access
  perf callchain: Make get_srcline fall back to sym+offset
  perf symbols: Move bfd_demangle stubbing to its only user
  perf callchain: Enable printing the srcline in the history
  perf tools: Collapse first level callchain entry if it has sibling
  ...

Pull RCU updates from Ingo Molnar:
 "These are the main changes in this cycle:

    - Streamline RCU's use of per-CPU variables, shifting from "cpu"
      arguments to functions to "this_"-style per-CPU variable
      accessors.

    - signal-handling RCU updates.

    - real-time updates.

    - torture-test updates.

    - miscellaneous fixes.

    - documentation updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  rcu: Fix FIXME in rcu_tasks_kthread()
  rcu: More info about potential deadlocks with rcu_read_unlock()
  rcu: Optimize cond_resched_rcu_qs()
  rcu: Add sparse check for RCU_INIT_POINTER()
  documentation: memory-barriers.txt: Correct example for reorderings
  documentation: Add atomic_long_t to atomic_ops.txt
  documentation: Additional restriction for control dependencies
  documentation: Document RCU self test boot params
  rcutorture: Fix rcu_torture_cbflood() memory leak
  rcutorture: Remove obsolete kversion param in kvm.sh
  rcutorture: Remove stale test configurations
  rcutorture: Enable RCU self test in configs
  rcutorture: Add early boot self tests
  torture: Run Linux-kernel binary out of results directory
  cpu: Avoid puts_pending overflow
  rcu: Remove "cpu" argument to rcu_cleanup_after_idle()
  rcu: Remove "cpu" argument to rcu_prepare_for_idle()
  rcu: Remove "cpu" argument to rcu_needs_cpu()
  rcu: Remove "cpu" argument to rcu_note_context_switch()
  rcu: Remove "cpu" argument to rcu_preempt_check_callbacks()
  ...

Pull locking tree changes from Ingo Molnar:
 "Two changes: a documentation update and a ticket locks live lock fix"

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ticketlock: Fix spin_unlock_wait() livelock
  locking/lglocks: Add documentation of current lglocks implementation

Pull asm-generic asm/io.h rewrite from Arnd Bergmann:
 "While there normally is no reason to have a pull request for
  asm-generic but have all changes get merged through whichever tree
  needs them, I do have a series for 3.19.

  There are two sets of patches that change significant portions of
  asm/io.h, and this branch contains both in order to resolve the
  conflicts:

   - Will Deacon has done a set of patches to ensure that all
     architectures define {read,write}{b,w,l,q}_relaxed() functions or
     get them by including asm-generic/io.h.

     These functions are commonly used on ARM specific drivers to avoid
     expensive L2 cache synchronization implied by the normal
     {read,write}{b,w,l,q}, but we need to define them on all
     architectures in order to share the drivers across architectures
     and to enable CONFIG_COMPILE_TEST configurations for them

   - Thierry Reding has done an unrelated set of patches that extends
     the asm-generic/io.h file to the degree necessary to make it useful
     on ARM64 and potentially other architectures"

* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (29 commits)
  ARM64: use GENERIC_PCI_IOMAP
  sparc: io: remove duplicate relaxed accessors on sparc32
  ARM: sa11x0: Use void __iomem * in MMIO accessors
  arm64: Use include/asm-generic/io.h
  ARM: Use include/asm-generic/io.h
  asm-generic/io.h: Implement generic {read,write}s*()
  asm-generic/io.h: Reconcile I/O accessor overrides
  /dev/mem: Use more consistent data types
  Change xlate_dev_{kmem,mem}_ptr() prototypes
  ARM: ixp4xx: Properly override I/O accessors
  ARM: ixp4xx: Fix build with IXP4XX_INDIRECT_PCI
  ARM: ebsa110: Properly override I/O accessors
  ARC: Remove redundant PCI_IOBASE declaration
  documentation: memory-barriers: clarify relaxed io accessor semantics
  x86: io: implement dummy relaxed accessor macros for writes
  tile: io: implement dummy relaxed accessor macros for writes
  sparc: io: implement dummy relaxed accessor macros for writes
  powerpc: io: implement dummy relaxed accessor macros for writes
  parisc: io: implement dummy relaxed accessor macros for writes
  mn10300: io: implement dummy relaxed accessor macros for writes
  ...

Pull ARM64 SoC changes from Arnd Bergmann:
 "This adds support for two new ARM64 platforms:

   - ARM Juno
   - AMD Seattle

  We had submissions for a number of additional platforms from Samsung,
  Freescale and Spreadtrum but are still working out the best process
  for getting these merged"

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: amd-seattle: Fix PCI bus range due to SMMU limitation
  arm64: ARM: Fix the Generic Timers interrupt active level description
  arm64: amd-seattle: Adding device tree for AMD Seattle platform
  arm64: Add Juno board device tree.
  arm64: Create link to include/dt-bindings to enable C preprocessor use.

Pull ARM SoC defconfig changes from Arnd Bergmann:
 "This is a collection of the various changes to defconfig files, most
  importantly enabling some additional platforms in the
  multi_v7_defconfig file.  These are split out into a separate branch
  to avoid most of the merge conflicts in the defconfig files.

  This also touches 12 other defconfig files for shmobile, at91,
  hisilicon, keystone, mvebu, omap, and tegra"

* tag 'defconfig-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
  ARM: omap2plus_defconfig: enable ECAP and EHRPWM
  ARM: omap2plus_defconfig: enable XHCI
  ARM: omap2plus_defconfig: enable AM33XX SoC sound
  ARM: omap2plus_defconfig: enable EDT FT5X06 touchscreen
  ARM: omap2plus_defconfig: remove unwanted ethernet drivers
  ARM: multi_v7_defconfig: enable MAX77686 PMIC drivers for exynos4412-prime based SoCs
  ARM: at91/defconfig: add DM9000 to at91_dt
  ARM: at91/defconfig: add QT1070 to at91_dt
  ARM: at91/defconfig: add TCB PWM driver selection
  ARM: at91/defconfig: add the XDMA driver
  ARM: at91: sama5: update defconfig
  ARM: defconfig: imx_v6_v7_defconfig updates
  ARM: multi_v7_defconfig: add driver support for hix5hd2
  ARM: exynos_defconfig: Use 16 minors per MMC block device
  ARM: mvebu: add MTD_BLOCK to mvebu_v7_defconfig
  ARM: mvebu: enable i2c device in mvebu_v7_defconfig
  ARM: mvebu: re-enable SDHCI driver for Armada 38x SoC in v7 defconfig
  ARM: tegra: Regenerate default configuration
  ARM: multi_v7_defconfig: Enable cgroups
  ARM: multi_v7_defconfig: Enable Broadcom Cygnus
  ...

Pull ARM SoC/OMAP GPMC driver cleanup and move from Arnd Bergmann:
 "The GPMC driver has traditionally been considered a part of the OMAP
  platform code and tightly interweaved with some of the boards.

  With this cleanup, it has finally come to the point where it makes
  sense to move it out of arch/arm into drivers/memory, where we already
  have other drivers for similar hardware.  The cleanups are still
  ongoing, with the goal of eventually having a standalone driver that
  does not require an interface to architecture code.

  This is a separate branch because of dependencies on multiple other
  branches, and to keep the drivers changes separate from the normal
  cleanups"

* tag 'omap-gpmc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  memory: gpmc: Move omap gpmc code to live under drivers
  ARM: OMAP2+: Move GPMC initcall to devices.c
  ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header
  ARM: OMAP2+: Remove unnecesary include in GPMC driver
  ARM: OMAP2+: Drop board file for 3430sdp
  ARM: OMAP2+: Drop board file for ti8168evm
  ARM: OMAP2+: Drop legacy code for gpmc-smc91x.c
  ARM: OMAP2+: Require proper GPMC timings for devices
  ARM: OMAP2+: Show bootloader GPMC timings to allow configuring the .dts file
  ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select
  ARM: OMAP2+: gpmc: Sanity check GPMC fck on probe
  ARM: OMAP2+: gpmc: Keep Chip Select disabled while configuring it
  ARM: OMAP2+: gpmc: Always enable A26-A11 for non NAND devices
  ARM: OMAP2+: gpmc: Error out if timings fail in gpmc_probe_generic_child()
  ARM: OMAP2+: gpmc: Print error message in set_gpmc_timing_reg()

Pull ARM SoC DT updates from Arnd Bergmann:
 "The DT branch adds a lot of new stuff for additional SoC and board
  support.  The branch is the largest one and contains 513 out of the
  total 972 non-merge arm-soc changesets for 3.19.

  Most of the changes are about enabling additional on-chip devices for
  existing machines, but there are also an unusual number of new SoC
  types being added this time:

   - AMLogic Meson8
   - ARM Realview in DT mode
   - Allwinner A80
   - Broadcom BCM47081
   - Broadcom Cygnus
   - Freescale LS1021A
   - Freescale Vybrid 500 series
   - Mediatek MT6592, MT8127, MT8135
   - STMicroelectronics STiH410
   - Samsung Exynos4415

  The level of support for the above differs widely, some are just stubs
  with nothing more than CPU, memory and a UART, but others are fairly
  complete.  As usual, these get extended over time.

  There are also many new boards getting added, this is the list of
  model strings that are showing up in new dts files:

   - ARM RealView PB1176
   - Altera SOCFPGA Arria 10
   - Asus RT-N18U (BCM47081)
   - Buffalo WZR-1750DHP (BCM4708)
   - Buffalo WZR-600DHP2 (BCM47081)
   - Cygnus Enterprise Phone (BCM911360_ENTPHN)
   - D-Link DIR-665
   - Google Spring
   - IGEP COM MODULE Rev. G (TI OMAP AM/DM37x)
   - IGEPv2 Rev. F (TI OMAP AM/DM37x)
   - LS1021A QDS Board
   - LS1021A TWR Board
   - LeMaker Banana Pi
   - MarsBoard RK3066
   - MediaTek MT8127 Moose Board
   - MediaTek MT8135 evaluation board
   - Mele M3
   - Merrii A80 Optimus Board
   - Netgear R6300 V2 (BCM4708)
   - Nomadik STN8815NHK
   - NovaTech OrionLXm
   - Olimex A20-OLinuXino-LIME2
   - Raspberry Pi Model B+
   - STiH410 B2120
   - Samsung Monk board
   - Samsung Rinato board
   - Synology DS213j
   - Synology DS414
   - TBS2910 Matrix ARM mini PC
   - TI AM5728 BeagleBoard-X15
   - Toradex Colibri VF50 on Colibri Evaluation Board
   - Zynq ZYBO Development Board

  Other notable changes include:

   - exynos: cleanup of existing dts files
   - mvebu: improved pinctrl support for Armada 370/XP
   - nomadik: restructuring dts files
   - omap: added CAN bus support
   - shmobile: added clock support for some SoCs
   - shmobile: added sound support for some SoCs
   - sirf: reset controller support
   - sunxi: continuing the relicensing under dual GPL/MIT
   - sunxi: lots of new on-chip device support
   - sunxi: working simplefb support (long awaited)
   - various: provide stdout-path property for earlycon"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (510 commits)
  ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured
  Revert "ARM: dts: rockchip: temporarily disable smp on rk3288"
  ARM: BCM5301X: Add DT for Buffalo WZR-600DHP2
  ARM: BCM5301X: Add DT for Asus RT-N18U
  ARM: BCM5301X: Add DT for Buffalo WZR-1750DHP
  ARM: BCM5301X: Add DT for Netgear R6300 V2
  ARM: BCM5301X: Add buttons for Netgear R6250
  ARM: dts: rockchip: Add input voltage supply regulators in pmic for Marsboard
  ARM: BCM5301X: Add IRQs to Broadcom's bus-axi in DTS file
  arm: dts: zynq: Add Digilent ZYBO board
  arm: dts: zynq: Move crystal freq. to board level
  doc: dt: vendor-prefixes: Add Digilent Inc
  Documentation: devicetree: Fix Xilinx VDMA specification
  ARM: dts: rockchip: set FIFO size for SDMMC, SDIO and EMMC on rk3066 and rk3188
  ARM: dts: rockchip: add label property for leds on Radxa Rock
  ARM: BCM5301X: Add LEDs for Netgear R6250 V1
  ARM: BCM5301X: Add Broadcom's bus-axi to the DTS file
  ARM: dts: add sysreg phandle to i2c device nodes for exynos
  ARM: dts: Remove unused bootargs from exynos3250-rinato
  ARM: dts: add board dts file for Exynos3250-based Monk board
  ...

Pull ARM SoC driver updates from Arnd Bergmann:
 "These are changes for drivers that are intimately tied to some SoC and
  for some reason could not get merged through the respective subsystem
  maintainer tree.

  The largest single change here this time around is the Tegra
  iommu/memory controller driver, which gets updated to the new iommu DT
  binding.  More drivers like this are likely to follow for the
  following merge window, but we should be able to do those through the
  iommu maintainer.

  Other notable changes are:
   - reset controller drivers from the reset maintainer (socfpga, sti,
     berlin)
   - fixes for the keystone navigator driver merged last time
   - at91 rtc driver changes related to the at91 cleanups
   - ARM perf driver changes from Will Deacon
   - updates for the brcmstb_gisb driver"

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  clocksource: arch_timer: Allow the device tree to specify uninitialized timer registers
  clocksource: arch_timer: Fix code to use physical timers when requested
  memory: Add NVIDIA Tegra memory controller support
  bus: brcmstb_gisb: Add register offset tables for older chips
  bus: brcmstb_gisb: Look up register offsets in a table
  bus: brcmstb_gisb: Introduce wrapper functions for MMIO accesses
  bus: brcmstb_gisb: Make the driver buildable on MIPS
  of: Add NVIDIA Tegra memory controller binding
  ARM: tegra: Move AHB Kconfig to drivers/amba
  amba: Add Kconfig file
  clk: tegra: Implement memory-controller clock
  serial: samsung: Fix serial config dependencies for exynos7
  bus: brcmstb_gisb: resolve section mismatch
  ARM: common: edma: edma_pm_resume may be unused
  ARM: common: edma: add suspend resume hook
  powerpc/iommu: Rename iommu_[un]map_sg functions
  rtc: at91sam9: add DT bindings documentation
  rtc: at91sam9: use clk API instead of relying on AT91_SLOW_CLOCK
  ARM: at91: add clk_lookup entry for RTT devices
  rtc: at91sam9: rework the Kconfig description
  ...

Pull ARM SoC platform changes from Arnd Bergmann:
 "New and updated SoC support, notable changes include:

   - bcm:
        brcmstb SMP support
        initial iproc/cygnus support
   - exynos:
        Exynos4415 SoC support
        PMU and suspend support for Exynos5420
        PMU support for Exynos3250
        pm related maintenance
   - imx:
        new LS1021A SoC support
        vybrid 610 global timer support
   - integrator:
        convert to using multiplatform configuration
   - mediatek:
        earlyprintk support for mt8127/mt8135
   - meson:
        meson8 soc and l2 cache controller support
   - mvebu:
        Armada 38x CPU hotplug support
        drop support for prerelease Armada 375 Z1 stepping
        extended suspend support, now works on Armada 370/XP
   - omap:
        hwmod related maintenance
        prcm cleanup
   - pxa:
        initial pxa27x DT handling
   - rockchip:
        SMP support for rk3288
        add cpu frequency scaling support
   - shmobile:
        r8a7740 power domain support
        various small restart, timer, pci apmu changes
   - sunxi:
        Allwinner A80 (sun9i) earlyprintk support
   - ux500:
        power domain support

  Overall, a significant chunk of changes, coming mostly from the usual
  suspects: omap, shmobile, samsung and mvebu, all of which already
  contain a lot of platform specific code in arch/arm"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits)
  ARM: mvebu: use the cpufreq-dt platform_data for independent clocks
  soc: integrator: Add terminating entry for integrator_cm_match
  ARM: mvebu: add SDRAM controller description for Armada XP
  ARM: mvebu: adjust mbus controller description on Armada 370/XP
  ARM: mvebu: add suspend/resume DT information for Armada XP GP
  ARM: mvebu: synchronize secondary CPU clocks on resume
  ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume
  ARM: mvebu: Armada XP GP specific suspend/resume code
  ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume
  ARM: mvebu: implement suspend/resume support for Armada XP
  clk: mvebu: add suspend/resume for gatable clocks
  bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration
  bus: mvebu-mbus: suspend/resume support
  clocksource: time-armada-370-xp: add suspend/resume support
  irqchip: armada-370-xp: Add suspend/resume support
  ARM: add lolevel debug support for asm9260
  ARM: add mach-asm9260
  ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
  power: reset: imx-snvs-poweroff: add power off driver for i.mx6
  ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A
  ...