Commit Graph

254162 Commits

Author SHA1 Message Date
Russell King 1b19ca9f0b Fix CPU spinlock lockups on secondary CPU bringup
Secondary CPU bringup typically calls calibrate_delay() during its
initialization.  However, calibrate_delay() modifies a global variable
(loops_per_jiffy) used for udelay() and __delay().

A side effect of 71c696b1 ("calibrate: extract fall-back calculation
into own helper") introduced in the 2.6.39 merge window means that we
end up with a substantial period where loops_per_jiffy is zero.  This
causes the spinlock debugging code to malfunction:

	u64 loops = loops_per_jiffy * HZ;
	for (;;) {
		for (i = 0; i < loops; i++) {
			if (arch_spin_trylock(&lock->raw_lock))
				return;
			__delay(1);
		}
		...
	}

by never calling arch_spin_trylock() - resulting in the CPU locking
up in an infinite loop inside __spin_lock_debug().

Work around this by only writing to loops_per_jiffy only once we have
completed all the calibration decisions.

Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org> (2.6.39-stable)
--
Better solutions (such as omitting the calibration for secondary CPUs,
or arranging for calibrate_delay() to return the LPJ value and leave
it to the caller to decide where to store it) are a possibility, but
would be much more invasive into each architecture.

I think this is the best solution for -rc and stable, but it should be
revisited for the next merge window.

 init/calibrate.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-23 08:59:38 -07:00
Mika Westerberg 33b1e6939f serial: mrst_max3110: initialize waitqueue earlier
The driver went to initialize its waitqueue at the start of the main
processing thread.  However, it is possible that this thread is not
scheduled on a CPU before the write function is called which leads to a
following error:

  BUG: spinlock bad magic on CPU#1, swapper/1
   lock: f5f3ebdc, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
  Pid: 1, comm: swapper Not tainted 3.0.0-rc2+ #67
  Call Trace:
   [<c1289663>] spin_bug+0xa3/0xf0
   [<c12897ad>] do_raw_spin_lock+0x7d/0x150
   [<c14963de>] _raw_spin_lock_irqsave+0x4e/0x60
   [<c102f2bb>] __wake_up+0x1b/0x50
   [<c12d3715>] serial_m3110_con_write+0x55/0x60
   [<c1041575>] __call_console_drivers+0x75/0x90
   [<c10415d9>] _call_console_drivers+0x49/0x80
   [<c1041baa>] console_unlock+0xca/0x1f0
   [<c10420ef>] vprintk+0x18f/0x4f0
   [<c14928a3>] printk+0x18/0x1a
   [<c1042730>] register_console+0x2e0/0x350
   [<c12d098e>] uart_add_one_port+0x33e/0x3d0
   [<c1485ba6>] serial_m3110_probe+0x1c2/0x1df
   [<c1303db7>] spi_drv_probe+0x17/0x20
   ...

Fix this by initializing the waitqueue before the main thread is
created.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-23 08:54:10 -07:00
William Douglas 0bb04bf3df mrst_max3110: Change max missing message priority.
Change print message to notice instead of error to clean up non critical
messages showing on startup.  The MAX3111 not being present is a normal
path for end user systems.

Signed-off-by: William Douglas <william.douglas@intel.com>
[rebased on 3.0, switched to dev_dbg()]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-23 08:54:09 -07:00
David Henningsson d2a19da79d ALSA: HDA: Pinfix quirk for HP Z200 Workstation
BIOS lists the internal speaker as an internal line-out. Change to
internal speaker + model=auto for better auto-mute capabilities.

BugLink: http://bugs.launchpad.net/bugs/754964
Reported-by: Marc Legris <marc.legris@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-23 09:25:20 +02:00
Linus Torvalds bccaeafd7c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  jfs: agstart field must be 64 bits
  JFS: Don't save agno in the inode
  jfs: Update agstart when resizing volume
  jfs: old_agsize should be 64 bits in jfs_extendfs
2011-06-22 21:49:07 -07:00
Linus Torvalds 68d0080f1e Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PCI / PM: Block races between runtime PM and system sleep
  PM / Domains: Update documentation
  PM / Runtime: Handle clocks correctly if CONFIG_PM_RUNTIME is unset
  PM: Fix async resume following suspend failure
  PM: Free memory bitmaps if opening /dev/snapshot fails
  PM: Rename dev_pm_info.in_suspend to is_prepared
  PM: Update documentation regarding sysdevs
  PM / Runtime: Update doc: usage count no longer incremented across system PM
2011-06-22 21:08:52 -07:00
David Rientjes f957db4fcd mm, hotplug: protect zonelist building with zonelists_mutex
Commit 959ecc48fc ("mm/memory_hotplug.c: fix building of node hotplug
zonelist") does not protect the build_all_zonelists() call with
zonelists_mutex as needed.  This can lead to races in constructing
zonelist ordering if a concurrent build is underway.  Protecting this
with lock_memory_hotplug() is insufficient since zonelists can be
rebuild though sysfs as well.

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-22 21:06:48 -07:00
David Rientjes 7553e8f2d5 mm, hotplug: fix error handling in mem_online_node()
The error handling in mem_online_node() is incorrect: hotadd_new_pgdat()
returns NULL if the new pgdat could not have been allocated and a pointer
to it otherwise.

mem_online_node() should fail if hotadd_new_pgdat() fails, not the
inverse.  This fixes an issue when memoryless nodes are not onlined and
their sysfs interface is not registered when their first cpu is brought
up.

The bug was introduced by commit cf23422b9d ("cpu/mem hotplug: enable
CPUs online before local memory online") iow v2.6.35.

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-22 21:06:47 -07:00
Pavel Shilovsky 446b23a758 CIFS: Fix problem with 3.0-rc1 null user mount failure
Figured it out: it was broken by b946845a9d commit - "cifs: cifs_parse_mount_options: do not tokenize mount options in-place". So, as a quick fix I suggest to apply this patch.

[PATCH] CIFS: Fix kfree() with constant string in a null user case

Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-06-22 21:43:56 +00:00
Ben Widawsky 483f179899 drm/i915: save/resume forcewake lock fixes
The lock must be held for the saving and restoring of VGA state.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
CC: Alexander Zhaunerchyk <alex.vizor@gmail.com>
CC: Andrey Rahmatullin <wrar@wrar.name>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-22 10:28:33 -07:00
Jan Glauber 859c965149 [S390] allow setting of upper 32 bit in smp_ctl_set_bit
The bit shift operation in smp_ctl_set_bit does not specify the type
of the shifted bit so integer is used as default. Therefore it is not
possible to set bits in the upper 32 bit of the control register if
the kernel runs in 64 bit mode. Fix this by specifying the type as
unsigned long.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22 16:24:20 +02:00
Christian Borntraeger 6815823431 [S390] hwsampler: Set a sane default sampling rate
The sampling interval for the hardware sampler is specified in cycles.
(see SA23-2260-01 The Load-Program-Parameter and the CPU-Measurement
Facilities)
The current default value will therefore result in millions of samples.
This patch changes the default sampling interval to 4M, which will
result in ~1500 samples per second on a z196 reducing the overhead
of sampling.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22 16:24:20 +02:00
Christian Borntraeger b530ce7a1a [S390] s390: enforce HW limits for the initial sampling rate
On specific configurations with hwsampler opcontrol --start returns an
error on "echo 1 >/dev/oprofile/enable". Turns out that the hw sampling
interval is not checked against the hardware limits.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22 16:24:20 +02:00
Christian Borntraeger 80629b0b0f [S390] kvm-s390: fix kconfig dependencies
A user can create the Kconfig combination !VIRTUALIZATION, S390_GUEST
which results in the following warnings:

warning: (S390_GUEST) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION)
warning: (S390_GUEST && VIRTIO_PCI && VIRTIO_BALLOON) selects VIRTIO_RING which has unmet direct dependencies (VIRTUALIZATION && VIRTIO)
warning: (S390_GUEST) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION)
warning: (S390_GUEST && VIRTIO_PCI && VIRTIO_BALLOON) selects VIRTIO_RING which has unmet direct dependencies (VIRTUALIZATION && VIRTIO)

S390_GUEST has to select VIRTUALIZATION before selecting VIRTIO and
friends.

Reported-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22 16:24:19 +02:00
David Howells b1d7dd80aa KEYS: Fix error handling in construct_key_and_link()
Fix error handling in construct_key_and_link().

If construct_alloc_key() returns an error, it shouldn't pass out through
the normal path as the key_serial() called by the kleave() statement
will oops when it gets an error code in the pointer:

  BUG: unable to handle kernel paging request at ffffffffffffff84
  IP: [<ffffffff8120b401>] request_key_and_link+0x4d7/0x52f
  ..
  Call Trace:
   [<ffffffff8120b52c>] request_key+0x41/0x75
   [<ffffffffa00ed6e8>] cifs_get_spnego_key+0x206/0x226 [cifs]
   [<ffffffffa00eb0c9>] CIFS_SessSetup+0x511/0x1234 [cifs]
   [<ffffffffa00d9799>] cifs_setup_session+0x90/0x1ae [cifs]
   [<ffffffffa00d9c02>] cifs_get_smb_ses+0x34b/0x40f [cifs]
   [<ffffffffa00d9e05>] cifs_mount+0x13f/0x504 [cifs]
   [<ffffffffa00caabb>] cifs_do_mount+0xc4/0x672 [cifs]
   [<ffffffff8113ae8c>] mount_fs+0x69/0x155
   [<ffffffff8114ff0e>] vfs_kern_mount+0x63/0xa0
   [<ffffffff81150be2>] do_kern_mount+0x4d/0xdf
   [<ffffffff81152278>] do_mount+0x63c/0x69f
   [<ffffffff8115255c>] sys_mount+0x88/0xc2
   [<ffffffff814fbdc2>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-21 18:31:45 -07:00
David Howells 35052cffe0 MN10300: asm/uaccess.h needs to #include linux/kernel.h for might_sleep()
MN10300's asm/uaccess.h needs to #include linux/kernel.h to get might_sleep()
otherwise it fails to build on MN10300 allyesconfig.  This fails in a few
places with messages like the following:

  In file included from security/keys/trusted.c:14:
  include/linux/uaccess.h: In function '__copy_from_user_nocache':
  include/linux/uaccess.h:52: error: implicit declaration of function 'might_sleep'

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-21 18:31:44 -07:00
Linus Torvalds 2992c4bd57 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: Fix decode_secinfo_maxsz
  NFSv4.1: Fix an off-by-one error in pnfs_generic_pg_test
  NFSv4.1: Fix some issues with pnfs_generic_pg_test
  NFSv4.1: file layout must consider pg_bsize for coalescing
  pnfs-obj: No longer needed to take an extra ref at add_device
  SUNRPC: Ensure the RPC client only quits on fatal signals
  NFSv4: Fix a readdir regression
  nfs4.1: mark layout as bad on error path in _pnfs_return_layout
  nfs4.1: prevent race that allowed use of freed layout in _pnfs_return_layout
  NFSv4.1: need to put_layout_hdr on _pnfs_return_layout error path
  NFS: (d)printks should use %zd for ssize_t arguments
  NFSv4.1: fix break condition in pnfs_find_lseg
  nfs4.1: fix several problems with _pnfs_return_layout
  NFSv4.1: allow zero fh array in filelayout decode layout
  NFSv4.1: allow nfs_fhget to succeed with mounted on fileid
  NFSv4.1: Fix a refcounting issue in the pNFS device id cache
  NFSv4.1: deprecate headerpadsz in CREATE_SESSION
  NFS41: do not update isize if inode needs layoutcommit
  NLM: Don't hang forever on NLM unlock requests
  NFS: fix umount of pnfs filesystems
2011-06-21 18:20:55 -07:00
John Stultz 1c6b39ad3f alarmtimers: Return -ENOTSUPP if no RTC device is present
Toralf Förster and Richard Weinberger noted that if there is
no RTC device, the alarm timers core prints out an annoying
"ALARM timers will not wake from suspend" message.

This warning has been removed in a previous patch, however
the issue still remains:  The original idea was to support
alarm timers even if there was no rtc device, as long as the
system didn't go into suspend.

However, after further consideration, communicating to the application
that alarmtimers are not fully functional seems like the better
solution.

So this patch makes it so we return -ENOTSUPP to any posix _ALARM
clockid calls if there is no backing RTC device on the system.

Further this changes the behavior where when there is no rtc device
we will check for one on clock_getres, clock_gettime, timer_create,
and timer_nsleep instead of on suspend.

CC: Toralf Förster <toralf.foerster@gmx.de>
CC: Richard Weinberger <richard@nod.at
CC: Peter Zijlstra <peterz@infradead.org>
CC: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Reported by: Richard Weinberger <richard@nod.at>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-06-21 16:32:28 -07:00
John Stultz c008ba58af alarmtimers: Handle late rtc module loading
The alarmtimers code currently picks a rtc device to use at
late init time. However, if your rtc driver is loaded as a module,
it may be registered after the alarmtimers late init code, leaving
the alarmtimers nonfunctional.

This patch moves the the rtcdevice selection to when we actually try
to use it, allowing us to make use of rtc modules that may have been
loaded at any point since bootup.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Meelis Roos <mroos@ut.ee>
Reported-by: Meelis Roos <mroos@ut.ee>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-06-21 15:38:33 -07:00
Rafael J. Wysocki a5f76d5eba PCI / PM: Block races between runtime PM and system sleep
After commit e866500247
(PM: Allow pm_runtime_suspend() to succeed during system suspend) it
is possible that a device resumed by the pm_runtime_resume(dev) in
pci_pm_prepare() will be suspended immediately from a work item,
timer function or otherwise, defeating the very purpose of calling
pm_runtime_resume(dev) from there.  To prevent that from happening
it is necessary to increment the runtime PM usage counter of the
device by replacing pm_runtime_resume() with pm_runtime_get_sync().
Moreover, the incremented runtime PM usage counter has to be
decremented by the corresponding pci_pm_complete(), via
pm_runtime_put_sync().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-06-21 23:47:15 +02:00
Rafael J. Wysocki ca9c6890b5 PM / Domains: Update documentation
Commit 4d27e9dcff (PM: Make power
domain callbacks take precedence over subsystem ones) forgot to
update the device power management documentation to take changes
made by it into account.  Correct that mistake.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-06-21 23:25:32 +02:00
Rafael J. Wysocki 4d1518f566 PM / Runtime: Handle clocks correctly if CONFIG_PM_RUNTIME is unset
Commit 85eb8c8d0b (PM / Runtime:
Generic clock manipulation rountines for runtime PM (v6)) converted
the shmobile platform to using generic code for runtime PM clock
management, but it changed the behavior for CONFIG_PM_RUNTIME unset
incorrectly.

Specifically, for CONFIG_PM_RUNTIME unset pm_runtime_clk_notify()
should enable clocks for action equal to BUS_NOTIFY_BIND_DRIVER and
it should disable them for action equal to BUS_NOTIFY_UNBOUND_DRIVER
(instead of BUS_NOTIFY_ADD_DEVICE and BUS_NOTIFY_DEL_DEVICE,
respectively).  Make this function behave as appropriate.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-06-21 23:24:33 +02:00
Alan Stern 6d0e0e84f6 PM: Fix async resume following suspend failure
The PM core doesn't handle suspend failures correctly when it comes to
asynchronously suspended devices.  These devices are moved onto the
dpm_suspended_list as soon as the corresponding async thread is
started up, and they remain on the list even if they fail to suspend
or the sleep transition is cancelled before they get suspended.  As a
result, when the PM core unwinds the transition, it tries to resume
the devices even though they were never suspended.

This patch (as1474) fixes the problem by adding a new "is_suspended"
flag to dev_pm_info.  Devices are resumed only if the flag is set.

[rjw:
 * Moved the dev->power.is_suspended check into device_resume(),
   because we need to complete dev->power.completion and clear
   dev->power.is_prepared too for devices whose
   dev->power.is_suspended flags are unset.
 * Fixed __device_suspend() to avoid setting dev->power.is_suspended
   if async_error is different from zero.]

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2011-06-21 23:20:20 +02:00
Michal Kubecek 8440f4b194 PM: Free memory bitmaps if opening /dev/snapshot fails
When opening /dev/snapshot device, snapshot_open() creates memory
bitmaps which are freed in snapshot_release(). But if any of the
callbacks called by pm_notifier_call_chain() returns NOTIFY_BAD, open()
fails, snapshot_release() is never called and bitmaps are not freed.
Next attempt to open /dev/snapshot then triggers BUG_ON() check in
create_basic_memory_bitmaps(). This happens e.g. when vmwatchdog module
is active on s390x.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2011-06-21 23:20:06 +02:00
Alan Stern f76b168b6f PM: Rename dev_pm_info.in_suspend to is_prepared
This patch (as1473) renames the "in_suspend" field in struct
dev_pm_info to "is_prepared", in preparation for an upcoming change.
The new name is more descriptive of what the field really means.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2011-06-21 23:19:50 +02:00
Rafael J. Wysocki 78420884e6 PM: Update documentation regarding sysdevs
The part of Documentation/power/devices.txt regarding sysdevs is not
valid any more after commit 2e711c04db
(PM: Remove sysdev suspend, resume and shutdown operations), so
remove it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-06-21 23:19:15 +02:00
Kevin Hilman 129b656a0d PM / Runtime: Update doc: usage count no longer incremented across system PM
Commit e866500247 (PM: Allow
pm_runtime_suspend() to succeed during system suspend) removed usage
count increment across system PM.

Update doc to reflect this.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-06-21 23:17:59 +02:00
Eric Anholt e92d03bff9 Revert "drm/i915: Kill GTT mappings when moving from GTT domain"
This reverts commit 4a684a4117.
Userland has always been required to set the object's domain to GTT
before using it through a GTT mapping, it's not something that the
kernel is supposed to enforce.  (The pagefault support is so that we
can handle multiple mappings without userland having to pin across
them, not so that userland can use GTT after GPU domains without
telling the kernel).

Fixes 19.2% +/- 0.8% (n=6) performance regression in cairo-gl
firefox-talos-gfx on my T420 latop.

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-21 11:11:02 -07:00
Chris Wilson ec6a890dfe drm/i915: Apply HWSTAM workaround for BSD ring on SandyBridge
...we need to apply exactly the same workaround for missing interrupts
from BSD as for the BLT ring, apparently.

See also commit 498e720b96
(drm/i915: Fix gen6 (SNB) missed BLT ring interrupts).

Reported-and-tested-by: nkalkhof@web.de
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38529
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-21 10:57:23 -07:00
Keith Packard efc2924e73 drm/i915: Call intel_enable_plane from i9xx_crtc_mode_set (again)
This change got placed in the ironlake path instead of the 9xx path
during a recent code shuffle.

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-21 10:57:05 -07:00
Linus Torvalds e08f6d4131 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/qib: Ensure that LOS and DFE are being turned off
  RDMA/cxgb4: Couple of abort fixes
  RDMA/cxgb4: Don't truncate MR lengths
  RDMA/cxgb4: Don't exceed hw IQ depth limit for user CQs
2011-06-21 10:36:06 -07:00
Linus Torvalds 890879cfa0 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: Fix oops in jbd2_journal_remove_journal_head()
  jbd2: Remove obsolete parameters in the comments for some jbd2 functions
  ext4: fixed tracepoints cleanup
  ext4: use FIEMAP_EXTENT_LAST flag for last extent in fiemap
  ext4: Fix max file size and logical block counting of extent format file
  ext4: correct comments for ext4_free_blocks()
2011-06-21 10:22:35 -07:00
Bryan Schumaker 1650add235 NFS: Fix decode_secinfo_maxsz
I initially did the calculation in bytes, and not words

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-06-21 11:54:07 -04:00
Trond Myklebust 19982ba856 NFSv4.1: Fix an off-by-one error in pnfs_generic_pg_test
And document what is going on there...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-06-21 11:54:06 -04:00
Trond Myklebust 8f7d5efbef NFSv4.1: Fix some issues with pnfs_generic_pg_test
1. If the intention is to coalesce requests 'prev' and 'req' then we
   have to ensure at least that we have a layout starting at
   req_offset(prev).

2. If we're only requesting a minimal layout of length desc->pg_count,
   we need to test the length actually returned by the server before
   we allow the coalescing to occur.

3. We need to deal correctly with (pgio->lseg == NULL)

4. Fixup the test guarding the pnfs_update_layout.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-06-21 11:54:05 -04:00
Linus Walleij 082763a80a ARM: 6969/1: plat-iop: fix build error
The iop13xx_defconfig didn't build since the platform code uses
defines from <asm/ptrace.h>. Simply add the include so it
compiles.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-21 11:33:21 +01:00
Dave Martin 946a105e16 ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries
It is easy to mis-maintain the proc_types table such that the
entries become wrongly-sized and misaligned when the kernel is
built in Thumb-2.

This patch adds an assembly-time check which will turn most common
size/alignment mistakes in this table into build failures, to avoid
having to debug the boot-time kernel hang which would happen if the
resulting kernel were actually booted.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-21 11:33:20 +01:00
Russell King 573619d165 ARM: SMP: wait for CPU to be marked active
When we bring a CPU online, we should wait for it to become active
before entering the idle thread, so we know that the scheduler and
thread migration is going to work.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-21 11:09:05 +01:00
Lydia Wang e905a83acd ALSA: VIA HDA: Create a master amplifier control for VT1718S.
Create a master volume and mute control of playback for VT1718S.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-21 07:24:56 +02:00
Lydia Wang ba31a60d0f ALSA: VIA HDA: Mute/unmute mixer conncted to Headphone for VT1718S.
When switch HP independent mode, mute/unmute connctions of mixer  which is
connected to headphone for VT1718S.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-21 07:23:19 +02:00
Lydia Wang 42467b32ce ALSA: VIA HDA: Modify initial verbs list for VT1718S.
Remove some invalid initial verbs and correct some wrong initial verbs
for VT1718S codec.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-21 07:22:57 +02:00
Tony Vroon c933790614 ALSA: hda - Remove ALC268 model override for CPR2000
The "diverse" Quanta ID 0x0763 is overridden to ALC268_ACER.
This keeps headphone automute and microphone input from operating
on at least one laptop from Opti Systems.
Without the override, the BIOS parser does a fine job setting the
card up and everything works.

Tested-By: Peter Schneider <e.at.chi.kaen@googlemail.com>
Signed-off-by: Tony Vroon <tony@linx.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-21 07:18:36 +02:00
Linus Torvalds 5629937872 Linux 3.0-rc4 2011-06-20 20:25:46 -07:00
Linus Torvalds 79568f5be0 vfs: i_state needs to be 'unsigned long' for now
Commit 13e12d14e2 ("vfs: reorganize 'struct inode' layout a bit")
moved things around a bit changed i_state to be unsigned int instead of
unsigned long.  That was to help structure layout for the 64-bit case,
and shrink 'struct inode' a bit (admittedly that only happened when
spinlock debugging was on and i_flags didn't pack with i_lock).

However, Meelis Roos reports that this results in unaligned exceptions
on sprc, and it turns out that the bit-locking primitives that we use
for the I_NEW bit want to use the bitops.  Which want 'unsigned long',
not 'unsigned int'.

We really should fix the bit locking code to not have that kind of
requirement, but that's a much bigger change.  So for now, revert that
field back to 'unsigned long' (but keep the other re-ordering changes
from the commit that caused this).

Andi points out that we have played games with this in 'struct page', so
it's solvable with other hacks too, but since right now the struct inode
size advantage only happens with some rare config options, it's not
worth fighting.

It _would_ be worth fixing the bitlocking code, though.  Especially
since there is no type safety in the bitlocking code (this never caused
any warnings, and worked fine on x86-64, because the bitlocks take a
'void *' and x86-64 doesn't care that deeply about alignment).  So it's
currently a very easy problem to trigger by mistake and never notice.

Reported-by: Meelis Roos <mroos@linux.ee>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-20 20:13:49 -07:00
Linus Torvalds f5fc5567dd Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms/r6xx+: voltage fixes
  drm/nouveau: drop leftover debugging
  drm/radeon: avoid warnings from r600/eg irq handlers on powered off card.
  drm/radeon/kms: add missing param for dce3.2 DP transmitter setup
  drm/radeon/kms/atom: fix duallink on some early DCE3.2 cards
  drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan sync
  drm/nv50/disp: fix gamma with page flipping overlay turned on
  drm/nouveau/pm: Prevent overflow in nouveau_perf_init()
  drm/nouveau: fix big-endian switch
2011-06-20 20:12:48 -07:00
Linus Torvalds 85d45adef0 Merge branch 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm
* 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm:
  msm: timer: Fix DGT rate on 8960 and 8660
  msm: timer: compensate for timer shift in msm_read_timer_count
  msm: timer: Fix SMP build error
2011-06-20 20:11:34 -07:00
Linus Torvalds eda0841094 Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux:
  nfsd4: fix break_lease flags on nfsd open
  nfsd: link returns nfserr_delay when breaking lease
  nfsd: v4 support requires CRYPTO
  nfsd: fix dependency of nfsd on auth_rpcgss
2011-06-20 20:10:52 -07:00
Linus Torvalds 6e158d2198 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  pxa168_eth: fix race in transmit path.
  ipv4, ping: Remove duplicate icmp.h include
  netxen: fix race in skb->len access
  sgi-xp: fix a use after free
  hp100: fix an skb->len race
  netpoll: copy dev name of slaves to struct netpoll
  ipv4: fix multicast losses
  r8169: fix static initializers.
  inet_diag: fix inet_diag_bc_audit()
  gigaset: call module_put before restart of if_open()
  farsync: add module_put to error path in fst_open()
  net: rfs: enable RFS before first data packet is received
  fs_enet: fix freescale FCC ethernet dp buffer alignment
  netdev: bfin_mac: fix memory leak when freeing dma descriptors
  vlan: don't call ndo_vlan_rx_register on hardware that doesn't have vlan support
  caif: Bugfix - XOFF removed channel from caif-mux
  tun: teach the tun/tap driver to support netpoll
  dp83640: drop PHY status frames in the driver.
  dp83640: fix phy status frame event parsing
  phylib: Allow BCM63XX PHY to be selected only on BCM63XX.
  ...
2011-06-20 20:10:18 -07:00
Linus Torvalds 3669820650 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper
  fix comment in generic_permission()
  kill obsolete comment for follow_down()
  proc_sys_permission() is OK in RCU mode
  reiserfs_permission() doesn't need to bail out in RCU mode
  proc_fd_permission() is doesn't need to bail out in RCU mode
  nilfs2_permission() doesn't need to bail out in RCU mode
  logfs doesn't need ->permission() at all
  coda_ioctl_permission() is safe in RCU mode
  cifs_permission() doesn't need to bail out in RCU mode
  bad_inode_permission() is safe from RCU mode
  ubifs: dereferencing an ERR_PTR in ubifs_mount()
2011-06-20 20:09:15 -07:00
Alex Deucher a377e187df drm/radeon/kms/r6xx+: voltage fixes
0xff01 is not an actual voltage value, but a flag
for the driver.  If the power state as that value,
skip setting the voltage.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-21 09:38:25 +10:00