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  1. 24 Feb, 2012 11 commits
  3. 23 Feb, 2012 4 commits
    • Anton Altaparmakov's avatar
      Restore direct_io / truncate locking API · 37fbf4bf
      Anton Altaparmakov authored 
      With kernel 3.1, Christoph removed i_alloc_sem and replaced it with
calls (namely inode_dio_wait() and inode_dio_done()) which are
EXPORT_SYMBOL_GPL() thus they cannot be used by non-GPL file systems and
further inode_dio_wait() was pushed from notify_change() into the file
system ->setattr() method but no non-GPL file system can make this call.

That means non-GPL file systems cannot exist any more unless they do not
use any VFS functionality related to reading/writing as far as I can
tell or at least as long as they want to implement direct i/o.

Both Linus and Al (and others) have said on LKML that this breakage of
the VFS API should not have happened and that the change was simply
missed as it was not documented in the change logs of the patches that
did those changes.

This patch changes the two function exports in question to be
EXPORT_SYMBOL() thus restoring the VFS API as it used to be - accessible
for all modules.

Christoph, who introduced the two functions and exported them GPL-only
is CC-ed on this patch to give him the opportunity to object to the
symbols being changed in this manner if he did indeed intend them to be
GPL-only and does not want them to become available to all modules.
Signed-off-by: default avatarAnton Altaparmakov <anton@tuxera.com>
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      37fbf4bf
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs · bb4c7e9a
      Linus Torvalds authored 
      A fix from Jesper Juhl removes an assignment in an ASSERT when a compare
is intended.  Two fixes from Mitsuo Hayasaka address off-by-ones in XFS
quota enforcement.

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: make inode quota check more general
  xfs: change available ranges of softlimit and hardlimit in quota check
  XFS: xfs_trans_add_item() - don't assign in ASSERT() when compare is intended
      bb4c7e9a
    • Linus Torvalds's avatar
      Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc · 73c8e679
      Linus Torvalds authored 
      BenH says:
 'Here are a few more powerpc bits for you.  A stupid regression I
  introduced with my previous commit to "fix" program check exceptions
  (brown paper bag for me), fix the cpuidle default, a bug fix for
  something that isn't strictly speaking a regression but some upstream
  changes causes it to show in lockdep now while it didn't before, and
  finally a trivial one for rusty to make his life easier later on
  removing the old cpumask cruft. '

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix various issues with return to userspace
  cpuidle: Default y on powerpc pSeries
  powerpc: Fix program check handling when lockdep is enabled
  powerpc: Remove references to cpu_*_map
      73c8e679
    • Linus Torvalds's avatar
      Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 0200971d
      Linus Torvalds authored 
      sound fixes for 3.3-rc5

Just a collection of boring small fixes for ASoC, HD-audio Realtek
and USB-audio drivers.

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: snd-usb-caiaq: Fix the return of XRUN
  ASoC: ak4642: fixup HeadPhone L/R dapm settings
  ALSA: hda/realtek - Fix surround output regression on Acer Aspire 5935
  ALSA: hda/realtek - Fix overflow of vol/sw check bitmap
  ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()
  ASoC: wm8962: Fix sidetone enumeration texts
      0200971d
  5. 22 Feb, 2012 22 commits
  7. 21 Feb, 2012 3 commits
    • Sarah Sharp's avatar
      xhci: Fix encoding for HS bulk/control NAK rate. · 340a3504
      Sarah Sharp authored 
      The xHCI 0.96 spec says that HS bulk and control endpoint NAK rate must
be encoded as an exponent of two number of microframes.  The endpoint
descriptor has the NAK rate encoded in number of microframes.  We were
just copying the value from the endpoint descriptor into the endpoint
context interval field, which was not correct.  This lead to the VIA
host rejecting the add of a bulk OUT endpoint from any USB 2.0 mass
storage device.

The fix is to use the correct encoding.  Refactor the code to convert
number of frames to an exponential number of microframes, and make sure
we convert the number of microframes in HS bulk and control endpoints to
an exponent.

This should be back ported to kernels as old as 2.6.31, that contain the
commit dfa49c4a "USB: xhci - fix math
in xhci_get_endpoint_interval"
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: default avatarFelipe Contreras <felipe.contreras@gmail.com>
Suggested-by: default avatarAndiry Xu <andiry.xu@amd.com>
Cc: stable@vger.kernel.org
      340a3504
    • Elric Fu's avatar
      USB: Set hub depth after USB3 hub reset · a45aa3b3
      Elric Fu authored 
      The superspeed device attached to a USB 3.0 hub(such as VIA's)
doesn't respond the address device command after resume. The
root cause is the superspeed hub will miss the Hub Depth value
that is used as an offset into the route string to locate the
bits it uses to determine the downstream port number after
reset, and all packets can't be routed to the device attached
to the superspeed hub.

Hub driver sends a Set Hub Depth request to the superspeed hub
except for USB 3.0 root hub when the hub is initialized and
doesn't send the request again after reset due to the resume
process. So moving the code that sends the Set Hub Depth request
to the superspeed hub from hub_configure() to hub_activate()
is to cover those situations include initialization and reset.

The patch should be backported to kernels as old as 2.6.39.
Signed-off-by: default avatarElric Fu <elricfu1@gmail.com>
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
      a45aa3b3
    • Sarah Sharp's avatar
      USB: Fix handoff when BIOS disables host PCI device. · cab928ee
      Sarah Sharp authored 
      On some systems with an Intel Panther Point xHCI host controller, the
BIOS disables the xHCI PCI device during boot, and switches the xHCI
ports over to EHCI.  This allows the BIOS to access USB devices without
having xHCI support.

The downside is that the xHCI BIOS handoff mechanism will fail because
memory mapped I/O is not enabled for the disabled PCI device.
Jesse Barnes says this is expected behavior.  The PCI core will enable
BARs before quirks run, but it will leave it in an undefined state, and
it may not have memory mapped I/O enabled.

Make the generic USB quirk handler call pci_enable_device() to re-enable
MMIO, and call pci_disable_device() once the host-specific BIOS handoff
is finished.  This will balance the ref counts in the PCI core.  When
the PCI probe function is called, usb_hcd_pci_probe() will call
pci_enable_device() again.

This should be back ported to kernels as old as 2.6.31.  That was the
first kernel with xHCI support, and no one has complained about BIOS
handoffs failing due to memory mapped I/O being disabled on other hosts
(EHCI, UHCI, or OHCI).
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: default avatarOliver Neukum <oneukum@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
      cab928ee
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