Commit Graph

300349 Commits

Author SHA1 Message Date
Paul Mundt 7b56934ce2 sh: magicpanelr2 evt2irq migration.
Migrate magicpanelr2 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:58:03 +09:00
Paul Mundt d5d7e78368 sh: espt evt2irq migration.
Migrate espt to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:57:21 +09:00
Paul Mundt 03c5713c96 sh: edosk7760 evt2irq migration.
Migrate edosk7760 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:52:31 +09:00
Paul Mundt 0fa4c3912c sh: edosk7705 evt2irq migration.
Migrate edosk7705 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:48:53 +09:00
Paul Mundt 85ee6b06cc sh: sh7720 evt2irq migration.
Migrate SH7720 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:41:00 +09:00
Paul Mundt 5d0af76968 sh: sh7710/sh7712 evt2irq migration.
Migrate SH7710/SH7712 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:37:51 +09:00
Paul Mundt a9302a64d4 sh: sh7706/sh7707/sh7709/sh7709 evt2irq migration.
Migrate SH770x to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:34:48 +09:00
Paul Mundt e91b2a40a1 sh: sh7705 evt2irq migration.
Migrate SH7705 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:31:11 +09:00
Paul Mundt 79ce21a64b sh: sh7760 evt2irq migration.
Migrate SH7760 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:28:11 +09:00
Paul Mundt 20688c3093 sh: sh7750 evt2irq migration.
Migrate SH7750 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:18:35 +09:00
Paul Mundt 054f0378a5 sh: sh4-202 evt2irq migration.
Migrate SH4-202 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:15:11 +09:00
Paul Mundt d8be10bbf3 sh: sh-x3 evt2irq migration.
Migrate SH-X3 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:11:22 +09:00
Paul Mundt ddb3208497 sh: sh7785 evt2irq migration.
Migrate SH7785 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:04:49 +09:00
Paul Mundt 89ed34f348 sh: sh7780 evt2irq migration.
Migrate SH7780 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:59:18 +09:00
Paul Mundt f454314cff sh: sh7770 evt2irq migration.
Migrate SH7770 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:52:22 +09:00
Paul Mundt ea3235d962 sh: sh7763 evt2irq migration.
Migrate SH7763 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:46:34 +09:00
Paul Mundt f5bccdc09a sh: sh7757 evt2irq migration.
Migrate SH7757 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:24:34 +09:00
Paul Mundt 16e9515358 sh: sh7724 evt2irq migration.
Migrate SH7724 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:12:24 +09:00
Paul Mundt 933b954386 sh: sh7723 evt2irq migration.
Migrate SH7723 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:57:59 +09:00
Paul Mundt 29b53e375b sh: sh7722 evt2irq migration.
Migrate SH7722 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:49:38 +09:00
Paul Mundt 58749400c5 sh: sh7366 evt2irq migration.
Migrate SH7366 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:43:11 +09:00
Paul Mundt de410b5369 sh: sh7343 evt2irq migration.
Migrate SH7343 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:38:12 +09:00
Paul Mundt e55387e9bf sh: sh7786 evt2irq migration.
This migrates SH7786 to evt2irq() backed hwirq lookup rather than
using an open-coded calculation. This will make it possible to reposition
the vector base at a later point in time.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:29:22 +09:00
Linus Torvalds 42ea7d7f2a Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Small set of fixes again."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7419/1: vfp: fix VFP flushing regression on sigreturn path
  ARM: 7418/1: LPAE: fix access flag setup in mem_type_table
  ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESS
  ARM: 7417/1: vfp: ensure preemption is disabled when enabling VFP access
2012-05-17 16:52:29 -07:00
Linus Torvalds 39c2028531 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull two networking fixes from David S. Miller:

1) Thanks to Willy Tarreau and Eric Dumazet, we've unlocked a bug that's
   been present in do_tcp_sendpages() since that function was written in
   2002.

   When we block to wait for memory we have to unconditionally try and
   push out pending TCP data, otherwise we can block for an unreasonably
   long amount of time.

2) Fix deadlock in e1000, fixes kernel bugzilla 43132

   From Tushar Dave.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  e1000: Prevent reset task killing itself.
  tcp: do_tcp_sendpages() must try to push data out on oom conditions
2012-05-17 16:30:26 -07:00
Rafael J. Wysocki 5c7dd710f6 ACPI / PCI / PM: Fix device PM regression related to D3hot/D3cold
Commit 1cc0c998fd ("ACPI: Fix D3hot v D3cold confusion") introduced a
bug in __acpi_bus_set_power() and changed the behavior of
acpi_pci_set_power_state() in such a way that it generally doesn't work
as expected if PCI_D3hot is passed to it as the second argument.

First off, if ACPI_STATE_D3 (equal to ACPI_STATE_D3_COLD) is passed to
__acpi_bus_set_power() and the explicit_set flag is set for the D3cold
state, the function will try to execute AML method called "_PS4", which
doesn't exist.

Fix this by adding a check to ensure that the name of the AML method
to execute for transitions to ACPI_STATE_D3_COLD is correct in
__acpi_bus_set_power().  Also make sure that the explicit_set flag
for ACPI_STATE_D3_COLD will be set if _PS3 is present and modify
acpi_power_transition() to avoid accessing power resources for
ACPI_STATE_D3_COLD, because they don't exist.

Second, if PCI_D3hot is passed to acpi_pci_set_power_state() as the
target state, the function will request a transition to
ACPI_STATE_D3_HOT instead of ACPI_STATE_D3.  However,
ACPI_STATE_D3_HOT is now only marked as supported if the _PR3 AML
method is defined for the given device, which is rare.  This causes
problems to happen on systems where devices were successfully put
into ACPI D3 by pci_set_power_state(PCI_D3hot) which doesn't work
now.  In particular, some unused graphics adapters are not turned
off as a result.

To fix this issue restore the old behavior of
acpi_pci_set_power_state(), which is to request a transition to
ACPI_STATE_D3 (equal to ACPI_STATE_D3_COLD) if either PCI_D3hot or
PCI_D3cold is passed to it as the argument.

This approach is not ideal, because generally power should not
be removed from devices if PCI_D3hot is the target power state,
but since this behavior is relied on, we have no choice but to
restore it at the moment and spend more time on designing a
better solution in the future.

References: https://bugzilla.kernel.org/show_bug.cgi?id=43228
Reported-by: rocko <rockorequin@hotmail.com>
Reported-by: Cristian Rodríguez <crrodriguez@opensuse.org>
Reported-and-tested-by: Peter <lekensteyn@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-17 16:16:16 -07:00
Tushar Dave 8ce6909f77 e1000: Prevent reset task killing itself.
Killing reset task while adapter is resetting causes deadlock.
Only kill reset task if adapter is not resetting.
Ref bug #43132 on bugzilla.kernel.org

CC: stable@vger.kernel.org
Signed-off-by: Tushar Dave <tushar.n.dave@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-17 18:32:41 -04:00
Willy Tarreau bad115cfe5 tcp: do_tcp_sendpages() must try to push data out on oom conditions
Since recent changes on TCP splicing (starting with commits 2f533844
"tcp: allow splice() to build full TSO packets" and 35f9c09f "tcp:
tcp_sendpages() should call tcp_push() once"), I started seeing
massive stalls when forwarding traffic between two sockets using
splice() when pipe buffers were larger than socket buffers.

Latest changes (net: netdev_alloc_skb() use build_skb()) made the
problem even more apparent.

The reason seems to be that if do_tcp_sendpages() fails on out of memory
condition without being able to send at least one byte, tcp_push() is not
called and the buffers cannot be flushed.

After applying the attached patch, I cannot reproduce the stalls at all
and the data rate it perfectly stable and steady under any condition
which previously caused the problem to be permanent.

The issue seems to have been there since before the kernel migrated to
git, which makes me think that the stalls I occasionally experienced
with tux during stress-tests years ago were probably related to the
same issue.

This issue was first encountered on 3.0.31 and 3.2.17, so please backport
to -stable.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Acked-by: Eric Dumazet <edumazet@google.com>
Cc: <stable@vger.kernel.org>
2012-05-17 18:31:43 -04:00
Linus Torvalds eea036475d Merge branch '3.4-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull two more target-core updates from Nicholas Bellinger:
 "The first patch addresses a SPC-2 reservations RELEASE bug in a
  special (iscsi specific) multi-ISID setup case that was allowing the
  same initiator to be able to incorrect release it's own reservation on
  a different SCSI path with enforce_pr_isid=1 operation.  This bug was
  caught by Bernhard Kohl.

  The second patch is to address a bug with FILEIO backends where the
  incorrect number of blocks for READ_CAPACITY was being reported after
  an underlying device-mapper block_device size change.  This patch uses
  now i_size_read() in fd_get_blocks() for FILEIO backends with an
  underlying block_device, instead of trying to determine this value at
  setup time during fd_create_virtdevice().  (hch CC'ed)

  Both are CC'ed to stable."

* '3.4-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix bug in handling of FILEIO + block_device resize ops
  target: Fix SPC-2 RELEASE bug for multi-session iSCSI client setups
2012-05-17 13:25:17 -07:00
Nicholas Bellinger cd9323fd68 target: Fix bug in handling of FILEIO + block_device resize ops
This patch fixes a bug in the handling of FILEIO w/ underlying block_device
resize operations where the original fd_dev->fd_dev_size was incorrectly being
used in fd_get_blocks() for READ_CAPACITY response payloads.

This patch avoids using fd_dev->fd_dev_size for FILEIO devices with
an underlying block_device, and instead changes fd_get_blocks() to
get the sector count directly from i_size_read() as recommended by hch.

Reported-by: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-05-17 12:02:43 -07:00
Linus Torvalds 1be5f0b757 Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes fromVinod Koul:
 "fixes of cylic dma usages in slave dma drivers"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: fix cyclic dma usage
  dmaengine: pl330: dont complete descriptor for cyclic dma
2012-05-17 09:57:13 -07:00
Linus Torvalds 42e8b9c001 virtio: last minute fixes for 3.4
Here are a couple of last minute virtio fixes for 3.4.
 Hope it's not too late yes - I might have tried too hard
 to make sure the fix is well tested.
 
 Fixes are by Amit and myself. One fixes module removal
 and one suspend of a VM, the last one the handling of out
 of memory condition.
 They are thus very low risk as most people never hit these paths, but do fix
 very annoying problems for people that do use the feature.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJPtMReAAoJECgfDbjSjVRp/7sIAIj1C/FaDWpKYydSti2wGO5C
 oT4JIFbiPUbs+9dkfDQve744ox3f9zW/K1e+xr0QkSpIDT76NFihUr++9PTGpLlw
 LPxbHXljQ+370gMu9eoF0iewRpY8rca3ZwL+5kb5GA+J+RGcXWbrj/wvu1IFW5Yy
 cGI8y/dkpEW42rVp1SJ+/yIYidkP2Ko017j/BmfTq0YIU2g8e+cH00uqQhhPaXlH
 h8PYxpzWBJbh1jmA6Zb0hsVfDpSrZoylCLEOeN0Vs1xF9MXwagAkVcIITdQCsIIh
 O7xsU+QB9pQd0RcUGXHJh8UNo7O5y55+wiZt/YDt3q8su4tPdPjjybmlBx6CJDE=
 =/XBC
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull last minute virtio fixes from Michael S. Tsirkin:
 "Here are a couple of last minute virtio fixes for 3.4.  Hope it's not
  too late yes - I might have tried too hard to make sure the fix is
  well tested.

  Fixes are by Amit and myself.  One fixes module removal and one
  suspend of a VM, the last one the handling of out of memory condition.

  They are thus very low risk as most people never hit these paths, but
  do fix very annoying problems for people that do use the feature.

  Signed-off-by: Michael S. Tsirkin <mst@redhat.com>"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_net: invoke softirqs after __napi_schedule
  virtio: balloon: let host know of updated balloon size before module removal
  virtio: console: tell host of open ports after resume from s3/s4
2012-05-17 09:55:58 -07:00
Linus Torvalds 674ff51776 ARM: SoC fixes for 3.4
I will stop trying to predict when we're done with fixes for a release.
 
 Here's another small batch of three patches for arm-soc:
 
 - A fix for a boot time WARN_ON() due to irq domain conversion on PRIMA2
 - Fix for a regression in Tegra SMP spinup code due to swapped register offsets
 - Fixed config dependency for mv_cesa crypto driver to avoid build breakage
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPtIh7AAoJEIwa5zzehBx3l8wP/1YHLAmjUDSIyhhgUr4aCVJQ
 BH/0rklbf+xsGRA+TIzk5VH6vIZYcRn//E1RDsYM+OLVeBBJW/0Jyg13bjYRrMSx
 KvtlKrzoULH1SNFVJstCYajRP4pP0jP+dmLy2EYFTrRXRAviZ6KlZsNCuD1AgfcE
 eYPClDBt6Wx5WGPMivtAGz+tCy56eXb7Iyrzj0SltknS+5ycoAmVKqdvRON6vUdL
 MEB/Z9E+BehOTQ8pTUP+u5a5P73kWzf8rt4+Y48gxVhMcnFJsnElrzgPzTWfYRfE
 eeG5LPXMiOeqoE0xsQzwJa6U49cp14qfRZyVVUfLRM/KhKIFBmslVdOJNoEeS17U
 zIG8sFo7IuAh6nAFY0v8ASoaCFNAuPHZBblb5xq/IYgSvkf4GkLqNW2xq3zCjpa6
 LR6LSCy517/+197fXV55+w+2WNRBqpqgqtZzUdROTtCJwYN0NDhD0VGNSgS9QYeF
 4VCw2IChyGkIpIEc8SoK1bmtCK/60cKTaAVduzRoz5v7+lsQLHSG/g4odONspcBD
 xrA5o6LvFHtituYDF0wu4U9NhaxtbZMFaSBAr8LztVPivlT57FoHyyoQTkrWgcfl
 0VJur8AcdB7j8hr7tWqlVxAqJQOSR2pXtUMwgMUkiPmJz8bApYo04rHllYXQGOAg
 qWu9jUoDHsCVhVJ4zv3+
 =jft8
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM: SoC fixes from Olof Johansson:
 "I will stop trying to predict when we're done with fixes for a
  release.

  Here's another small batch of three patches for arm-soc:

   - A fix for a boot time WARN_ON() due to irq domain conversion on
     PRIMA2
   - Fix for a regression in Tegra SMP spinup code due to swapped
     register offsets
   - Fixed config dependency for mv_cesa crypto driver to avoid build
     breakage"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: PRIMA2: fix irq domain size and IRQ mask of internal interrupt controller
  crypto: mv_cesa requires on CRYPTO_HASH to build
  ARM: tegra: Fix flow controller accesses
2012-05-17 09:46:07 -07:00
Linus Torvalds 36a1987cd8 md: 2 fixes for 3.4
one fixes a bug in the new raid10 resize code so is relevant
 to 3.4 only
 Other fixes a bug in the use of md by dm-raid, so is relevant
 to any kernel with dm-raid support
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.18 (GNU/Linux)
 
 iQIVAwUAT7SBkznsnt1WYoG5AQK3wQ//Q2sPicPHb5MNGTTBpphYo1QWo+l9jFHs
 ZDBM+MaiNJg3kBN5ueUU+MENvLcaA5+zoxsGVBXBKyXr70ffqiQcLXyU7fHwrGu3
 5MD36p55ZPnq2pemCrp4qdTXEUabmDb+0/R7e5lywnzNdbmCAfh4uYih0VPiaClV
 ihq/Ci12TDnezmLjksc09OCquhm0s3zH2BnMCVdmSAkhnXCxTeZ45s/ob71Y2xvj
 cJ15SYlAG4t0QCikL5R8pZtkh0h2SuUhufDE09eD8yT4RGO4PHSQ4oHujajftzey
 9sB0NGH7Yla8gOXjA+EpzKPaiqtZxJB+1v/bhqA2FoOYAks8VoFfeqgwUbPYE7bk
 GIfGB4hFsUXaJo13uzofyJXBIp9mM/J5Sk1VJsiLE85P7wewg6N199B8lpC3lFDw
 tMLjfTMJzFOUqZBESjJoxyrc4fairZ9VCUWwpqjuioLO50e+lOi/jQHTspX78e+w
 GxgjHp8hh0RqQiTkl7vIz9KVcQIeOTG9uzz61IuDp15cRSrMs6E8gVKoX8gKW9g2
 Hec17fdG/H6ZeZa7MB9GzUD4HCj0PRbODQ3/fPhUdsbgtQjOvsVUH8LCRRU0U6cb
 YF+qsDFtUF7QT2kNbrs9R6adGj97c2HWUMyRWMQAXGuL5TkstvhrRv/rk1+bv2VG
 w7ptbiklj7o=
 =9zxe
 -----END PGP SIGNATURE-----

Merge tag 'md-3.4-fixes' of git://neil.brown.name/md

Pull two md fixes from NeilBrown:
 "One fixes a bug in the new raid10 resize code so is relevant to 3.4
  only.

  The other fixes a bug in the use of md by dm-raid, so is relevant to
  any kernel with dm-raid support"

* tag 'md-3.4-fixes' of git://neil.brown.name/md:
  MD: Add del_timer_sync to mddev_suspend (fix nasty panic)
  md/raid10: set dev_sectors properly when resizing devices in array.
2012-05-17 09:44:35 -07:00
Linus Torvalds 31ae98359d Merge branches 'perf-urgent-for-linus', 'x86-urgent-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf, x86 and scheduler updates from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tracing: Do not enable function event with enable
  perf stat: handle ENXIO error for perf_event_open
  perf: Turn off compiler warnings for flex and bison generated files
  perf stat: Fix case where guest/host monitoring is not supported by kernel
  perf build-id: Fix filename size calculation

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, kvm: KVM paravirt kernels don't check for CPUID being unavailable
  x86: Fix section annotation of acpi_map_cpu2node()
  x86/microcode: Ensure that module is only loaded on supported Intel CPUs

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix KVM and ia64 boot crash due to sched_groups circular linked list assumption
2012-05-17 09:35:17 -07:00
Will Deacon 56cb248428 ARM: 7419/1: vfp: fix VFP flushing regression on sigreturn path
Commit ff9a184c ("ARM: 7400/1: vfp: clear fpscr length and stride bits
on entry to sig handler") flushes the VFP state prior to entering a
signal handler so that a VFP operation inside the handler will trap and
force a restore of ABI-compliant registers. Reflushing and disabling VFP
on the sigreturn path is predicated on the saved thread state indicating
that VFP was used by the handler -- however for SMP platforms this is
only set on context-switch, making the check unreliable and causing VFP
register corruption in userspace since the register values are not
necessarily those restored from the sigframe.

This patch unconditionally flushes the VFP state after a signal handler.
Since we already perform the flush before the handler and the flushing
itself happens lazily, the redundant flush when VFP is not used by the
handler is essentially a nop.

Reported-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-17 14:48:56 +01:00
Vitaly Andrianov 1a3abcf41f ARM: 7418/1: LPAE: fix access flag setup in mem_type_table
A zero value for prot_sect in the memory types table implies that
section mappings should never be created for the memory type in question.
This is checked for in alloc_init_section().

With LPAE, we set a bit to mask access flag faults for kernel mappings.
This breaks the aforementioned (!prot_sect) check in alloc_init_section().

This patch fixes this bug by first checking for a non-zero
prot_sect before setting the PMD_SECT_AF flag.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-17 14:48:56 +01:00
Michael S. Tsirkin ec13ee8014 virtio_net: invoke softirqs after __napi_schedule
__napi_schedule might raise softirq but nothing
causes do_softirq to trigger, so it does not in fact
run. As a result,
the error message "NOHZ: local_softirq_pending 08"
sometimes occurs during boot of a KVM guest when the network service is
started and we are oom:

  ...
  Bringing up loopback interface:  [  OK  ]
  Bringing up interface eth0:
  Determining IP information for eth0...NOHZ: local_softirq_pending 08
   done.
  [  OK  ]
  ...

Further, receive queue processing might get delayed
indefinitely until some interrupt triggers:
virtio_net expected napi to be run immediately.

One way to cause do_softirq to be executed is by
invoking local_bh_enable(). As __napi_schedule is
normally called from bh or irq context, this
seems to make sense: disable bh before __napi_schedule
and enable afterwards.

In fact it's a very complicated way of calling do_softirq(),
and works since this function is only used when we are not
in interrupt context.  It's not hot at all, in any ideal scenario.

Reported-by: Ulrich Obergfell <uobergfe@redhat.com>
Tested-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-17 12:16:38 +03:00
Amit Shah b8ae0eb320 virtio: balloon: let host know of updated balloon size before module removal
When the balloon module is removed, we deflate the balloon, reclaiming
all the pages that were given to the host.  However, we don't update the
config values for the new balloon size, resulting in the host showing
outdated balloon values.

The size update is done after each leak and fill operation, only the
module removal case was left out.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-05-17 12:14:34 +03:00
Amit Shah fa8b66ccd2 virtio: console: tell host of open ports after resume from s3/s4
If a port was open before going into one of the sleep states, the port
can continue normal operation after restore.  However, the host has to
be told that the guest side of the connection is open to restore
pre-suspend state.

This wasn't noticed so far due to a bug in qemu that was fixed recently
(which marked the guest-side connection as always open).

CC: stable@vger.kernel.org   # Only for 3.3

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-05-17 12:14:33 +03:00
Barry Song ad3b8a8393 ARM: PRIMA2: fix irq domain size and IRQ mask of internal interrupt controller
the old codes will cause 3.4 kernel warning as irq domain size is wrong:
------------[ cut here ]------------
WARNING: at kernel/irq/irqdomain.c:74 irq_domain_legacy_revmap+0x24/0x48()
Modules linked in:
[<c0013f50>] (unwind_backtrace+0x0/0xf8) from [<c001e7d8>] (warn_slowpath_common+0x54/0x64)
[<c001e7d8>] (warn_slowpath_common+0x54/0x64) from [<c001e804>] (warn_slowpath_null+0x1c/0x24)
[<c001e804>] (warn_slowpath_null+0x1c/0x24) from [<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48)
[<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48) from [<c005c704>] (irq_create_mapping+0x20/0x120)
[<c005c704>] (irq_create_mapping+0x20/0x120) from [<c005c880>] (irq_create_of_mapping+0x7c/0xf0)
[<c005c880>] (irq_create_of_mapping+0x7c/0xf0) from [<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34)
[<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34) from [<c01a6c68>] (of_irq_to_resource+0x18/0x74)
[<c01a6c68>] (of_irq_to_resource+0x18/0x74) from [<c01a6ce8>] (of_irq_count+0x24/0x34)
[<c01a6ce8>] (of_irq_count+0x24/0x34) from [<c01a7220>] (of_device_alloc+0x58/0x158)
[<c01a7220>] (of_device_alloc+0x58/0x158) from [<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80)
[<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80) from [<c01a7468>] (of_platform_bus_create+0xc8/0x190)
[<c01a7468>] (of_platform_bus_create+0xc8/0x190) from [<c01a74cc>] (of_platform_bus_create+0x12c/0x190)
---[ end trace 1b75b31a2719ed32 ]---

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-05-16 21:52:13 -07:00
Jonathan Brassow 0d9f4f135e MD: Add del_timer_sync to mddev_suspend (fix nasty panic)
Use del_timer_sync to remove timer before mddev_suspend finishes.

We don't want a timer going off after an mddev_suspend is called.  This is
especially true with device-mapper, since it can call the destructor function
immediately following a suspend.  This results in the removal (kfree) of the
structures upon which the timer depends - resulting in a very ugly panic.
Therefore, we add a del_timer_sync to mddev_suspend to prevent this.

Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
2012-05-17 10:38:24 +10:00
NeilBrown 6508fdbf40 md/raid10: set dev_sectors properly when resizing devices in array.
raid10 stores dev_sectors in 'conf' separately from the one in
'mddev' because it can have a very significant effect on block
addressing and so need to be updated carefully.

However raid10_resize isn't updating it at all!

To update it correctly, we need to make sure it is a proper
multiple of the chunksize taking various details of the layout
in to account.
This calculation is currently done in setup_conf.   So split it
out from there and call it from raid10_resize as well.
Then set conf->dev_sectors properly.

Signed-off-by: NeilBrown <neilb@suse.de>
2012-05-17 10:08:45 +10:00
Linus Torvalds 0e93b4b304 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm powerpc fixes from Marcelo Tosatti:
 "Urgent KVM PPC updates, quoting Alexander Graf:

    There are a few bugs in 3.4 that really should be fixed before
    people can be all happy and fuzzy about KVM on PowerPC.  These fixes
    are:

     * fix POWER7 bare metal with PR=y
     * fix deadlock on HV=y book3s_64 mode in low memory cases
     * fix invalid MMU scope of PR=y mode on book3s_64, possibly eading
       to memory corruption"

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PPC: Book3S HV: Fix bug leading to deadlock in guest HPT updates
  powerpc/kvm: Fix VSID usage in 64-bit "PR" KVM
  KVM: PPC: Book3S: PR: Fix hsrr code
  KVM: PPC: Fix PR KVM on POWER7 bare metal
  KVM: PPC: Book3S: PR: Handle EMUL_ASSIST
2012-05-16 14:30:51 -07:00
Linus Torvalds b724cc199b sound fixes for 3.4
A few last-minute regression fixes for 3.4 final kernel.
 All trivial, and Cc'ed to stable kernel.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.18 (GNU/Linux)
 
 iQIcBAABAgAGBQJPs5nDAAoJEGwxgFQ9KSmkKqAP/AxbPIMOhYtwJXSLIBJdDTBy
 QIh7SUZTDF7m3h3pElFIUzb6NXftBOktwNBCYjYrtWH3hv6a0XwAG/zs2ysvHo4O
 1iIEIT61ojckSC2OXqdCLSnZrLZmysuBUJEt8JdpHKoGnfxt8xUUSOqtIggur6s+
 T34u1pqJr7gcaU0/51XXqGqR2s4qui8LkSyPVx+s3Pz4+mfh+um1SBcYz5bYpkXe
 04gwCR6qrxwvqn1gGUiwFw1KtWNuD+BwWyLN+WNWLrm7NVipVLPaAaCjvnouxYwU
 Z9psy3QgwgFyJ0k27lWf+NkP25/9NXuj0yaV0++dUHR4QP3+P9IJpvpyFLvkyXBe
 EPjLsAdW9WQKlp/0eN/b2k8825Ip5on3UNrQhTmXc0QLC6bCyoRlznSI2nKC7rZw
 eYcFUv37pka3iL9i/cNQKwhY8iRwts6vAuHdqONA3iDyCoBIYWsZZDzs+tjc3xYN
 f1cI+vbDLatzpn6ut2yXIqCHJLLUROL6DnKC6l86+7DNXo7hJ9CZOSgedhvdPRc6
 sayOsbWwG8RX7vLsbp4SvfpaGwI+GtfFoaECKcLW5Tem8xLuTbUcuIavAyjqxzrk
 Shp7TGDmM5U1JFcXK3ZtvUcumBFjTa2rl9OB5dHMzLQV8KZAzeVUNqSHm4pma3SX
 NpdEX7QxM83K0zSnppjh
 =e/ZS
 -----END PGP SIGNATURE-----

Merge tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few last-minute regression fixes for 3.4 final kernel.  All trivial,
  and Cc'ed to stable kernel."

* tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: wm8994: Fix AIF2ADC power down
  ALSA: hda/idt - Fix power-map for speaker-pins with some HP laptops
  ASoC: cs42l73: Sync digital mixer kcontrols to allow for 0dB
2012-05-16 14:29:45 -07:00
Linus Torvalds f8fc341ba4 Fix a nasty off-by-one remoteproc bug which leaks memory when
a remote processor is shut down and, on certain circumstances,
 can indirectly prevent it from being reloaded.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPs2y2AAoJELLolMlTRIoMcl0P/0fPAjNlIeMbiWy5FqTgwkM6
 QnujXPq0+fGRbO8ScjAVCVUmKewEbBtzA7h6b3XD4VUCMVIiWx2+hEhuYMNHduxj
 CnqwNsukl/PmPLBQucghuITjGqgAAasuO7UvE4b12vn/ZD8y28f21sL4S0G5DIAv
 GKLInkwMWwCjdNBa1CquVSl7t75TtEPByPuLa+3Cr+uhKP0zI+1TEyTzA6oSi+ub
 aR56yZCS2HF4jiTNKb/+x/mSeaCOhUb7/d8173c9fKFFU8jF6LNc0uRByLSUg2Ze
 2cU5UEhtxBhJ3fG2HuAMAvXJyFvriW+kYcUZeubgaHIWR/g+vNXYO4Q1Aoicve6V
 Ulp4y5Nwv4xbU3BLOm1r3CFioTTSBOpqHY6x1NjyJUCRGel0XWWsNuLvm6nMTVql
 GmzwKPH5nnyFI1piJRagLzPs1KbW6yBqwghiUkGagEfuHsjHPZ6RHMolVVSFhD5Z
 wmvwO8nJ59bgjMndz1VAPkcvihYDG8kZ2GrsOE7i8wLUK7V1MuI0SH5364nti58F
 dxetaqcOkARN4Alt+6mNgymOqybcueOUa9BhlosXyGRhHYfUnlQV1m+i5uT9P4pJ
 558rJ4PHJDqC3KsRLgY8oK9QIGOAthR+naUSSSipIfuiXnDNCydXEApY+Q5PkgEm
 +HBh+0lwlEWY2i+Ege3F
 =wUSA
 -----END PGP SIGNATURE-----

Merge tag 'rproc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc fix from Ohad Ben-Cohen:
 "Fix a nasty off-by-one remoteproc bug which leaks memory when a remote
  processor is shut down and, on certain circumstances, can indirectly
  prevent it from being reloaded."

* tag 'rproc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: fix off-by-one bug in __rproc_free_vrings
2012-05-16 14:26:05 -07:00
Linus Torvalds dfae359f08 Merge git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fix from Jeff Layton

* git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix misspelling of "forcedirectio"
2012-05-16 14:22:38 -07:00
Linus Torvalds 39d6411b7d Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull two Tile arch fixes from Chris Metcalf:
 "These are both bug-fixes, one to avoid some issues in how we invoke
  the "pending userspace work" flags on return to userspace, and the
  other to provide the same signal handler arguments for tilegx32 that
  we do for tilegx64."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: apply commit 74fca9da0 to the compat signal handling as well
  arch/tile: fix up some issues in calling do_work_pending()
2012-05-16 14:21:41 -07:00
Linus Torvalds 8011652957 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking tree from David Miller:

1) ptp_pch driver build broke during this merge window due to missing
   slab.h header, fix from Geery Uytterhoeven.

2) If ipset passes in a bogus hash table size we crash because the size
   is not validated properly.  Compounding this, gcc-4.7 can miscompile
   ipset such that even when the user specifies legitimate parameters
   the tool passes in an out-of-range size to the kernel.

   Fix from Jozsef Kadlecsik.

3) Users have reported that the netdev watchdog can trigger with pch_gbe
   devices, and it turns out this is happening because of races in the
   TX path of the driver leading to the transmitter hanging.  Fix from
   Eric Dumazet, reported and tested by Andy Cress.

4) Novatel USB551L devices match the generic class entries for the cdc
   ethernet USB driver, but they don't work because they have generic
   descriptors and thus need FLAG_WWAN to function properly.

   Add the necessary ID table entry to fix this, from Dan Williams.

5) A recursive locking fix in the USBNET driver added a new problem, in
   that packet list traversal is now racy and we can thus access
   unlinked SKBs and crash.

   Avoid this situation by adding some extra state tracking, from Ming
   Lei.

6) The rtlwifi conversion to asynchronous firmware loading is racy, fix
   by reordering the probe procedure.  From Larry Finger.

   Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=43187

7) Fix regressions with bluetooth keyboards by notifying userland
   properly when the security level changes, from Gustavo Padovan.

8) Bluetooth needs to make sure device connected events are emitted
   before other kinds of events, otherwise userspace will think there is
   no baseband link yet and therefore abort the sockets associated with
   that connection.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  netfilter: ipset: fix hash size checking in kernel
  ptp_pch: Add missing #include <linux/slab.h>
  pch_gbe: fix transmit races
  cdc_ether: add Novatel USB551L device IDs for FLAG_WWAN
  usbnet: fix skb traversing races during unlink(v2)
  Bluetooth: mgmt: Fix device_connected sending order
  Bluetooth: notify userspace of security level change
  rtlwifi: fix for race condition when firmware is cached
2012-05-16 13:14:52 -07:00
Chris Metcalf a134d22829 arch/tile: apply commit 74fca9da0 to the compat signal handling as well
This passes siginfo and mcontext to tilegx32 signal handlers that
don't have SA_SIGINFO set just as we have been doing for tilegx64.

Cc: stable@vger.kernel.org
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-05-16 16:01:45 -04:00