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If the allocation of the MTT or the mailbox failed, mthca_fmr_alloc()
would return 0 (success) no matter what. This leads to crashes a
little down the road, when we try to dereference eg mr->mtt, which was
really ERR_PTR(-Ewhatever).
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The string mlx4_ib_version was defined, but never used. Print out the
version once when the first device is initialized.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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We have recently discovered that Tavor mode requires each WQE in a
posted list of receive WQEs to have a valid NDA field at all times.
This requirement holds true for regular QPs as well as for SRQs. This
patch prelinks the receive queue in a regular QP and keeps the free
list in SRQ always properly linked.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The SRQ receive posting functions make sure that srq->first_free never
becomes negative, so we can remove tests of whether it is negative.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Allocate memory for the page_list field of struct ib_pool_fmr only
when caching is enabled for the FMR pool, since the field is not used
otherwise. This can save significant amounts of memory for large
pools with caching turned off.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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When a host just goes away (crash, power loss, etc.) without tearing
down its IB connections, it can get stale connection errors when it
tries to reconnect to targets upon rebooting. Retrying the connection
a few times will prevent sysadmins from playing the "which disk(s)
went missing?" game.
This would have made things slightly quicker when tracking down some
of the recent bugs, but it also helps quite a bit when you've got a
large number of targets hanging off a wedged server.
Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The firmware QUERY_ADAPTER command does not return vendor_id,
device_id, and revision_id; eliminate these fields from the query.
Initialize the rev_id field of the mlx4 device via init_node_data (MAD
IFC query), as is done in the query_device verb implementation.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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For memfree devices, the firmware QUERY_ADAPTER command does not
return vendor_id, device_id, and revision_id; do not return these
fields in the QUERY_ADAPTER function for memfree devices.
Instead, for memfree devices, initialize the rev_id field of the mthca
device via init_node_data (MAD IFC query), as is done in the
query_device verb implementation.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Commit 732a2170 ("IB/ipoib: Bound the net device to the ipoib_neigh
structue") left a misleading debug print (n->dev would be a bond
device only if boding is used). Clean it up.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Move up the code that checks for a situation where the remote GID
stored in the ipoib_neigh is different than the one present in the
neighbour (handle gratuitous ARP) or that a bonding fail over has
happened but the neighbour still has a pointer to an ipoib_neigh
created by a different device than the current slave. This will cause
the driver to apply the check also for connected mode neighbours.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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In mthca_reg_phys_mr(), we calculate the page size for the HCA
hardware to use to map the buffer list passed in by the consumer.
For example, if the consumer passes in
[0] addr 0x1000, size 0x1000
[1] addr 0x2000, size 0x1000
then the algorithm would come up with a page size of 0x2000 and a list
of two pages, at 0x0000 and 0x2000. Usually, this would work fine
since the memory region would start at an offset of 0x1000 and have a
length of 0x2000.
However, the old code did not take into account the alignment of the
IO virtual address passed in. For example, if the consumer passed in
a virtual address of 0x6000 for the above, then the offset of 0x1000
would not be used correctly because the page mask of 0x1fff would
result in an offset of 0.
We can fix this quite neatly by making sure that the page shift we use
is no bigger than the first bit where the start of the first buffer
and the IO virtual address differ. Also, we can further simplify the
code by removing the special case for a single buffer by noticing that
it doesn't matter if we use a page size that is too big. This allows
the loop to compute the page shift to be replaced with __ffs().
Thanks to Bryan S Rosenburg <rosnbrg@us.ibm.com> for pointing out the
original bug and suggesting several ways to improve this patch.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch enables ehca to redirect any PMA queries to the
actual PMA QP.
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Reviewed-by: Joachim Fenkes <fenkes@de.ibm.com>
Reviewed-by: Christoph Raisch <raisch@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The IB spec doesn't allow packets to QP0 sent on any other VL than VL15.
Hardware doesn't filter those packets on the send side, so we need to do
this in the driver and firmware.
As eHCA doesn't support QP0, we can just filter out all traffic going to
QP0, regardless of SL or VL.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Paths with hop_limit > 1 indicate that the connection will be routed
between IB subnets. Update the subnet local field in the CM REQ based
on the hop_limit value. In addition, if the path is routed, then set
the LIDs in the REQ to the permissive LIDs. This is used to indicate
to the passive side that it should use the LIDs in the received local
route header (LRH) associated with the REQ when programming the QP.
This is a temporary work-around to the IB CM to support IB router
development until the IB router specification is completed. It is not
anticipated that this work-around will cause any interoperability
issues with existing stacks or future stacks that will properly
support IB routers when defined.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Commit 3d73c288 ("mlx4_core: Fix section mismatches") fixed some of
the section mismatches introduced when error recovery was added, but
there were still more cases of errory recovery code calling into
__devinit code from regular .text. Fix this by getting rid of the
now-incorrect __devinit annotations.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
[ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
[ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
[ARM] 4820/1: RealView: Select the timer IRQ at run-time
[ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
[ARM] 4818/1: RealView: Add core-tile detection
[ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
[ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
[ARM] 4815/1: RealView: Add clockevents suport for the local timers
[ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
[ARM] 4813/1: Add SMP helper functions for clockevents support
[ARM] 4812/1: RealView: clockevents support for the RealView platforms
[ARM] 4811/1: RealView: clocksource support for the RealView platforms
[ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
[ARM] 4798/1: pcm027: fix missing header file
[ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
[ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
[ARM] pxa: introduce sysdev for pxa3xx static memory controller
[ARM] pxa: add preliminary suspend/resume code for pxa3xx
[ARM] pxa: introduce sysdev for GPIO register saving/restoring
[ARM] pxa: introduce sysdev for IRQ register saving/restoring
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git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm
* 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
Explain kmem_cache_cpu fields
SLUB: Do not upset lockdep
SLUB: Fix coding style violations
Add parameter to add_partial to avoid having two functions
SLUB: rename defrag to remote_node_defrag_ratio
Move count_partial before kmem_cache_shrink
SLUB: Fix sysfs refcounting
slub: fix shadowed variable sparse warnings
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Add some comments explaining the fields of the kmem_cache_cpu structure.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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inconsistent {softirq-on-W} -> {in-softirq-W} usage.
swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
(&n->list_lock){-+..}, at: [<ffffffff802935c1>] add_partial+0x31/0xa0
{softirq-on-W} state was registered at:
[<ffffffff80259fb8>] __lock_acquire+0x3e8/0x1140
[<ffffffff80259838>] debug_check_no_locks_freed+0x188/0x1a0
[<ffffffff8025ad65>] lock_acquire+0x55/0x70
[<ffffffff802935c1>] add_partial+0x31/0xa0
[<ffffffff805c76de>] _spin_lock+0x1e/0x30
[<ffffffff802935c1>] add_partial+0x31/0xa0
[<ffffffff80296f9c>] kmem_cache_open+0x1cc/0x330
[<ffffffff805c7984>] _spin_unlock_irq+0x24/0x30
[<ffffffff802974f4>] create_kmalloc_cache+0x64/0xf0
[<ffffffff80295640>] init_alloc_cpu_cpu+0x70/0x90
[<ffffffff8080ada5>] kmem_cache_init+0x65/0x1d0
[<ffffffff807f1b4e>] start_kernel+0x23e/0x350
[<ffffffff807f112d>] _sinittext+0x12d/0x140
[<ffffffffffffffff>] 0xffffffffffffffff
This change isn't really necessary for correctness, but it prevents lockdep
from getting upset and then disabling itself.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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This fixes most of the obvious coding style violations in mm/slub.c as
reported by checkpatch.
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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Add a parameter to add_partial instead of having separate functions. The
parameter allows a more detailed control of where the slab pages is placed in
the partial queues.
If we put slabs back to the front then they are likely immediately used for
allocations. If they are put at the end then we can maximize the time that
the partial slabs spent without being subject to allocations.
When deactivating slab we can put the slabs that had remote objects freed (we
can see that because objects were put on the freelist that requires locks) to
them at the end of the list so that the cachelines of remote processors can
cool down. Slabs that had objects from the local cpu freed to them (objects
exist in the lockless freelist) are put in the front of the list to be reused
ASAP in order to exploit the cache hot state of the local cpu.
Patch seems to slightly improve tbench speed (1-2%).
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The NUMA defrag works by allocating objects from partial slabs on remote
nodes. Rename it to
remote_node_defrag_ratio
to be clear about this.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Move the counting function for objects in partial slabs so that it is placed
before kmem_cache_shrink.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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If CONFIG_SYSFS is set then free the kmem_cache structure when
sysfs tells us its okay.
Otherwise there is the danger (as pointed out by
Al Viro) that sysfs thinks the kobject still exists after
kmem_cache_destroy() removed it.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka J Enberg <penberg@cs.helsinki.fi>
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Introduce 'len' at outer level:
mm/slub.c:3406:26: warning: symbol 'n' shadows an earlier one
mm/slub.c:3393:6: originally declared here
No need to declare new node:
mm/slub.c:3501:7: warning: symbol 'node' shadows an earlier one
mm/slub.c:3491:6: originally declared here
No need to declare new x:
mm/slub.c:3513:9: warning: symbol 'x' shadows an earlier one
mm/slub.c:3492:6: originally declared here
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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* at91:
[ARM] 4802/1: Fix typo and remove vague comment
[ARM] 4660/3: at91: allow selecting UART for early kernel messages
[ARM] 4739/1: at91sam9263: make gpio bank C and D irqs work
* ixp:
[ARM] 4809/2: ixp4xx: Merge dsmg600-power.c into dsmg600-setup.c
[ARM] 4808/2: ixp4xx: Merge nas100d-power.c into nas100d-setup.c
[ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c
[ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards
[ARM] 4805/1: ixp4xx: Use leds-gpio driver instead of IXP4XX-GPIO-LED driver
[ARM] 4715/2: Ethernet support for IXDP425 boards
[ARM] 4714/2: Headers for IXP4xx built-in Ethernet and WAN drivers
[ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features
[ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bits
[ARM] 4774/2: ixp4xx: Register dsmg600 rtc i2c_board_info
[ARM] 4773/2: ixp4xx: Register nas100d rtc i2c_board_info
[ARM] 4772/2: ixp4xx: Register nslu2 rtc i2c_board_info
[ARM] 4769/2: ixp4xx: Button updates for the dsmg600 board
[ARM] 4768/2: ixp4xx: Button and LED updates for the nas100d board
[ARM] 4767/2: ixp4xx: Add bitops.h include to io.h
[ARM] 4766/2: ixp4xx: Update ixp4xx_defconfig, enabling all supported boards
* master:
[ARM] 4810/1: - Fix 'section mismatch' building warnings
[ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking
[ARM] 21285 serial: fix build error
* misc:
[ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
* pxa:
[ARM] 4798/1: pcm027: fix missing header file
[ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
[ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
[ARM] pxa: introduce sysdev for pxa3xx static memory controller
[ARM] pxa: add preliminary suspend/resume code for pxa3xx
[ARM] pxa: introduce sysdev for GPIO register saving/restoring
[ARM] pxa: introduce sysdev for IRQ register saving/restoring
[ARM] pxa: fix the warning of undeclared "struct pxaohci_platform_data"
[ARM] pxa: change set_kset_name() to direct name assignment for MFP sysclass
* realview:
[ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
[ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
[ARM] 4820/1: RealView: Select the timer IRQ at run-time
[ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
[ARM] 4818/1: RealView: Add core-tile detection
[ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
[ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
[ARM] 4815/1: RealView: Add clockevents suport for the local timers
[ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
[ARM] 4813/1: Add SMP helper functions for clockevents support
[ARM] 4812/1: RealView: clockevents support for the RealView platforms
[ARM] 4811/1: RealView: clocksource support for the RealView platforms
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This patch changes the REALVIEW_MPCORE configuration option to
REALVIEW_EB_ARM11MP since this is only specific to RealView/EB.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch removes the TWD_BASE macro used to set up and configure the
local timers on ARM11MPCore. The twd_base_addr and twd_size variables
are defined in localtimer.c and set from the realview_eb_init function.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch sets the timer IRQ at run-time by moving the sys_timer
structure and the timer_init function to the realview_eb.c file. This
allows multiple RealView platforms to be compiled in the same kernel
image.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch modifies the get_irqnr_preamble macro to work with multiple
platforms at run-time by reading the address of the GIC controller from
the gic_cpu_base_addr variable. This variable is defined in core.c and
intialised in realview_eb.c (gic_init_irq).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds the core-tile detection and only enables devices if the
corresponding tile is present. It currently detects the ARM11MPCore via
the core_tile_eb11mp() macro.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch moves the IRQ and DMA definitions from core.h into
realview_eb.c since they are platform-specific. It adds a
realview_eb11mp_fixup function to adjust the IRQ numbers if the
ARM11MPCore tile is fitted. The realview_smc91x_device is also moved
from core.c into realview_eb.c.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch moves the platform specific definitions from platform.h into
the board-eb.h file. It drops the INT_* definitions as they are no
longer used in irqs.h (moved to board-eb.h). It renames REALVIEW_*
macros to REALVIEW_EB_* or REALVIEW_EB11MP_* to distinguish between
standard EB and EB + the ARM11MPCore tile. The platform.h file contains
common definitions to the RealView platforms and it is only directly
included in board-*.h files.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch registers the local timers on ARM11MPCore as clock event
devices. The clock device can be set up as periodic or oneshot.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds dummy local timers for each CPU so that the board clock
device is used to broadcast events to the other CPUs. The patch also
adds the declaration for the dummy_timer_setup function (the equivalent
of local_timer_setup when CONFIG_LOCAL_TIMERS is not set).
Due to the way clockevents work, the dummy timer on the first CPU has to
be registered before the board timer.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds the smp_call_function_single and smp_timer_broadcast
functions and modifies ipi_timer to call the platform-specific function
local_timer_interrupt.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The patch updates the RealView code to the clockevents infrastructure.
The SMP support is implemented in subsequent patches. Based on the
Versatile implementation by Kevin Hilman.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The patch updates the RealView platform code to use the generic
clocksource infrastructure for basic time keeping. Based on the
Versatile implementation by Kevin Hilman.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits)
x86: fix RTC lockdep warning: potential hardirq recursion
x86: cpa, micro-optimization
x86: cpa, clean up code flow
x86: cpa, eliminate CPA_ enum
x86: cpa, cleanups
x86: implement gbpages support in change_page_attr()
x86: support gbpages in pagetable dump
x86: add gbpages support to lookup_address
x86: add pgtable accessor functions for gbpages
x86: add PUD_PAGE_SIZE
x86: add feature macros for the gbpages cpuid bit
x86: switch direct mapping setup over to set_pte
x86: fix page-present check in cpa_flush_range
x86: remove cpa warning
x86: remove now unused clear_kernel_mapping
x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
x86: cpa selftest, skip non present entries
x86: CPA fix pagetable split
x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
x86: cpa, fix lookup_address
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (25 commits)
virtio: balloon driver
virtio: Use PCI revision field to indicate virtio PCI ABI version
virtio: PCI device
virtio_blk: implement naming for vda-vdz,vdaa-vdzz,vdaaa-vdzzz
virtio_blk: Dont waste major numbers
virtio_blk: provide getgeo
virtio_net: parametrize the napi_weight for virtio receive queue.
virtio: free transmit skbs when notified, not on next xmit.
virtio: flush buffers on open
virtnet: remove double ether_setup
virtio: Allow virtio to be modular and used by modules
virtio: Use the sg_phys convenience function.
virtio: Put the virtio under the virtualization menu
virtio: handle interrupts after callbacks turned off
virtio: reset function
virtio: populate network rings in the probe routine, not open
virtio: Tweak virtio_net defines
virtio: Net header needs hdr_len
virtio: remove unused id field from struct virtio_blk_outhdr
virtio: clarify NO_NOTIFY flag usage
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits)
Jesper Juhl is the new trivial patches maintainer
Documentation: mention email-clients.txt in SubmittingPatches
fs/binfmt_elf.c: spello fix
do_invalidatepage() comment typo fix
Documentation/filesystems/porting fixes
typo fixes in net/core/net_namespace.c
typo fix in net/rfkill/rfkill.c
typo fixes in net/sctp/sm_statefuns.c
lib/: Spelling fixes
kernel/: Spelling fixes
include/scsi/: Spelling fixes
include/linux/: Spelling fixes
include/asm-m68knommu/: Spelling fixes
include/asm-frv/: Spelling fixes
fs/: Spelling fixes
drivers/watchdog/: Spelling fixes
drivers/video/: Spelling fixes
drivers/ssb/: Spelling fixes
drivers/serial/: Spelling fixes
drivers/scsi/: Spelling fixes
...
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* 'locks' of git://linux-nfs.org/~bfields/linux:
pid-namespaces-vs-locks-interaction
file locks: Use wait_event_interruptible_timeout()
locks: clarify posix_locks_deadlock
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AVR32 still includes Kconfig.instrumentation, so it won't build after
this...
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
scsi: fix dependency bug in aic7 Makefile
kbuild: add svn revision information to setlocalversion
kbuild: do not warn about __*init/__*exit symbols being exported
Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig
Add HAVE_KPROBES
Add HAVE_OPROFILE
Create arch/Kconfig
Fix ARM to play nicely with generic Instrumentation menu
kconfig: ignore select of unknown symbol
kconfig: mark config as changed when loading an alternate config
kbuild: Spelling/grammar fixes for config DEBUG_SECTION_MISMATCH
Remove __INIT_REFOK and __INITDATA_REFOK
kbuild: print only total number of section mismatces found
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Drivers that register a ->fault handler, but do not range-check the
offset argument, must set VM_DONTEXPAND in the vm_flags in order to
prevent an expanding mremap from overflowing the resource.
I've audited the tree and attempted to fix these problems (usually by
adding VM_DONTEXPAND where it is not obvious).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit c9f6d3d5c6d4f4cd3a53549a69c92951180e2a76 ("[POWERPC] adb: Replace
sleep notifier with platform driver suspend/resume hooks") introduced
compile errors on m68k because <linux/platform_device.h> is not
explicitly included. On powerpc, it's pulled in through <asm/prom.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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After disabling both CONFIG_DEBUG_LOCKING_API_SELFTESTS and netconsole
(using current mainline) I get a login prompt, and also...
[ 5.181668] SELinux: policy loaded with handle_unknown=deny
[ 5.183315] type=1403 audit(1202100038.157:3): policy loaded auid=4294967295 ses=4294967295
[ 5.822073] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
[ 7.819146] ------------[ cut here ]------------
[ 7.819146] WARNING: at kernel/lockdep.c:2033 trace_hardirqs_on+0x9b/0x10d()
[ 7.819146] Modules linked in: generic ext3 jbd ide_disk ide_core
[ 7.819146] Pid: 399, comm: hwclock Not tainted 2.6.24 #4
[ 7.819146] [<c011d140>] warn_on_slowpath+0x41/0x51
[ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<c013770c>] ? check_usage_forwards+0x19/0x3b
[ 7.819146] [<c01390c4>] ? __lock_acquire+0xac3/0xb0b
[ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<c030ca6c>] ? _spin_unlock_irq+0x22/0x42
[ 7.819146] [<c013848b>] trace_hardirqs_on+0x9b/0x10d
[ 7.819146] [<c030ca6c>] _spin_unlock_irq+0x22/0x42
[ 7.819146] [<c011481e>] hpet_rtc_interrupt+0xdf/0x290
[ 7.819146] [<c014ea90>] handle_IRQ_event+0x1a/0x46
[ 7.819146] [<c014f8ea>] handle_edge_irq+0xbe/0xff
[ 7.819146] [<c0106e08>] do_IRQ+0x6d/0x84
[ 7.819146] [<c0105596>] common_interrupt+0x2e/0x34
[ 7.819146] [<c013007b>] ? ktime_get_ts+0x8/0x3f
[ 7.819146] [<c0139420>] ? lock_release+0x167/0x16f
[ 7.819146] [<c017974a>] ? core_sys_select+0x2c/0x327
[ 7.819146] [<c0179792>] core_sys_select+0x74/0x327
[ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<c030ca6c>] ? _spin_unlock_irq+0x22/0x42
[ 7.819146] [<c01384d6>] ? trace_hardirqs_on+0xe6/0x10d
[ 7.819146] [<c030ca77>] ? _spin_unlock_irq+0x2d/0x42
[ 7.819146] [<c023b437>] ? rtc_do_ioctl+0x11b/0x677
[ 7.819146] [<c01c487e>] ? inode_has_perm+0x5e/0x68
[ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<c01c490b>] ? file_has_perm+0x83/0x8c
[ 7.819146] [<c023ba08>] ? rtc_ioctl+0xf/0x11
[ 7.819146] [<c017898d>] ? do_ioctl+0x55/0x67
[ 7.819146] [<c0179d15>] sys_select+0x93/0x163
[ 7.819146] [<c0104b39>] ? sysenter_past_esp+0x9a/0xa5
[ 7.819146] [<c0104afe>] sysenter_past_esp+0x5f/0xa5
[ 7.819146] =======================
[ 7.819146] ---[ end trace 96540ca301ffb84c ]---
[ 7.819210] rtc: lost 6 interrupts
[ 7.870668] type=1400 audit(1202128840.794:4): avc: denied { audit_write } for pid=399 comm="hwclock" capability=29 scontext=system_u:system_r:hwclock_t:s0 tcontext=system_u:system_r:hwclock_t:s0 tclass=capability
[ 9.538866] input: PC Speaker as /class/input/input5
Because hpet_rtc_interrupt()'s call to get_rtc_time() ends up
resolving to include/asm-generic/rtc.h's (hilariously inlined)
get_rtc_time(), which does spin_unlock_irq() from hard IRQ context.
The obvious patch fixes it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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