openwrt/staging/blogic.git
15 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
Linus Torvalds [Thu, 15 Oct 2009 22:06:37 +0000 (15:06 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/mason/btrfs-unstable

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: always pin metadata in discard mode
  Btrfs: enable discard support
  Btrfs: add -o discard option
  Btrfs: properly wait log writers during log sync
  Btrfs: fix possible ENOSPC problems with truncate
  Btrfs: fix btrfs acl #ifdef checks
  Btrfs: streamline tree-log btree block writeout
  Btrfs: avoid tree log commit when there are no changes
  Btrfs: only write one super copy during fsync

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
Linus Torvalds [Thu, 15 Oct 2009 22:06:02 +0000 (15:06 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  tty: fix vt_compat_ioctl

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Thu, 15 Oct 2009 22:05:46 +0000 (15:05 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  sysfs: Allow sysfs_notify_dirent to be called from interrupt context.
  sysfs: Allow sysfs_move_dir(..., NULL) again.

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Thu, 15 Oct 2009 22:05:33 +0000 (15:05 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: gadget: Fix EEM driver comments and VID/PID
  usb-storage: Workaround devices with bogus sense size
  USB: ehci: Fix IST boundary checking interval math.
  USB: option: Support for AIRPLUS MCD650 Datacard
  USB: whci-hcd: always do an update after processing a halted qTD
  USB: whci-hcd: handle early deletion of endpoints
  USB: wusb: don't use the stack to read security descriptor
  USB: rename Documentation/ABI/.../sysfs-class-usb_host

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Thu, 15 Oct 2009 22:05:20 +0000 (15:05 -0700)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: rt2860sta: prevent a panic when disabling when associated
  staging: more sched.h fixes
  Staging: et131x: Fix the add_10bit macro
  Staging: et131x: Correct WRAP bit handling
  staging: Complete sched.h removal from interrupt.h
  Staging: vme: fix sched.h build breakage
  Staging: poch: fix sched.h build breakage
  Staging: b3dfg: fix sched.h build breakage
  Staging: comedi: fix sched.h build breakage
  Staging: iio: Fix missing include <linux/sched.h>

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 15 Oct 2009 22:03:17 +0000 (15:03 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (53 commits)
  vmxnet: fix 2 build problems
  net: add support for STMicroelectronics Ethernet controllers.
  net: ks8851_mll uses mii interfaces
  net/fec_mpc52xx: Fix kernel panic on FEC error
  net: Fix OF platform drivers coldplug/hotplug when compiled as modules
  TI DaVinci EMAC: Clear statistics register properly.
  r8169: partial support and phy init for the 8168d
  irda/sa1100_ir: check return value of startup hook
  udp: Fix udp_poll() and ioctl()
  WAN: fix Cisco HDLC handshaking.
  tcp: fix tcp_defer_accept to consider the timeout
  3c574_cs: spin_lock the set_multicast_list function
  net: Teach pegasus driver to ignore bluetoother adapters with clashing Vendor:Product IDs
  netxen: fix pci bar mapping
  ethoc: fix warning from 32bit build
  libertas: fix build
  net: VMware virtual Ethernet NIC driver: vmxnet3
  net: Fix IXP 2000 network driver building.
  libertas: fix build
  mac80211: document ieee80211_rx() context requirement
  ...

15 years agoMerge the right tty-fixes branch
Linus Torvalds [Thu, 15 Oct 2009 21:59:24 +0000 (14:59 -0700)]
Merge the right tty-fixes branch

* branch 'tty-fixes'
  tty: use the new 'flush_delayed_work()' helper to do ldisc flush
  workqueue: add 'flush_delayed_work()' to run and wait for delayed work
  tty: Make flush_to_ldisc() locking more robust

15 years agovmxnet: fix 2 build problems
Randy Dunlap [Thu, 15 Oct 2009 03:38:58 +0000 (20:38 -0700)]
vmxnet: fix 2 build problems

vmxnet3 uses in_dev* interfaces so it should depend on INET.
Also fix so that the driver builds when CONFIG_PCI_MSI is disabled.

vmxnet3_drv.c:(.text+0x2a88cb): undefined reference to `in_dev_finish_destroy'

drivers/net/vmxnet3/vmxnet3_drv.c:1335: error: 'struct vmxnet3_intr' has no member named 'msix_entries'
drivers/net/vmxnet3/vmxnet3_drv.c:1384: error: 'struct vmxnet3_intr' has no member named 'msix_entries'
drivers/net/vmxnet3/vmxnet3_drv.c:2137: error: 'struct vmxnet3_intr' has no member named 'msix_entries'
drivers/net/vmxnet3/vmxnet3_drv.c:2138: error: 'struct vmxnet3_intr' has no member named 'msix_entries'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bhavesh davda <bhavesh@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agotty: fix vt_compat_ioctl
Andreas Schwab [Mon, 28 Sep 2009 18:10:02 +0000 (20:10 +0200)]
tty: fix vt_compat_ioctl

Call compat_unimap_ioctl, not do_unimap_ioctl.

This was broken by commit e9216651.

The compat_unimap_ioctl was originally called do_unimap_ioctl in
fs/compat_ioctl.h which got moved to drivers/char/vt_ioctl.c.
In that patch, the caller was not updated and consequently called
the native handler.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Wed, 14 Oct 2009 22:36:19 +0000 (15:36 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
  ieee1394: add documentation entry to MAINTAINERS
  ieee1394: update URLs in debugging-via-ohci1394.txt

15 years agoMerge branch 'tty-fixes'
Linus Torvalds [Wed, 14 Oct 2009 22:34:55 +0000 (15:34 -0700)]
Merge branch 'tty-fixes'

* branch 'tty-fixes':
  tty: use the new 'flush_delayed_work()' helper to do ldisc flush
  workqueue: add 'flush_delayed_work()' to run and wait for delayed work
  Make flush_to_ldisc properly handle parallel calls

15 years agoMerge branch 'topic/x86-lds-nits' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 14 Oct 2009 22:33:05 +0000 (15:33 -0700)]
Merge branch 'topic/x86-lds-nits' of git://git./linux/kernel/git/frob/linux-2.6-roland

* 'topic/x86-lds-nits' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:
  x86: linker script syntax nits

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Wed, 14 Oct 2009 22:31:48 +0000 (15:31 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  watchdog: Fix rio watchdog probe function
  sparc64: Set IRQF_DISABLED on LDC channel IRQs.
  sparc64: Fix D-cache flushing on swapin from SW devices.
  sparc64: Fix niagara2 perf IRQ bits.

15 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Wed, 14 Oct 2009 22:31:15 +0000 (15:31 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] sclp_vt220 build fix
  [S390] cio: change misleading console logic
  [S390] call home support: fix proc handler
  [S390] dasd: use idal for device characteristics
  [S390] Add highgprs facility to /proc/cpuinfo
  [S390] dasd: fix locking bug
  [S390] tape390: Fix request queue handling in block driver
  [S390] hypfs: Use subcode 6 if subcode 7 is not available

15 years agoMerge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Wed, 14 Oct 2009 22:30:45 +0000 (15:30 -0700)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix a TRACE_IRQS_OFF typo.
  sh: Optimize the setup_rt_frame() I-cache flush.
  sh: Populate initial secondary CPU info from boot_cpu_data.
  sh: Tidy up SMP cpuinfo.
  sh: Use boot_cpu_data for FPU tests in sigcontext paths.
  sh: ftrace: Fix up syscall tracepoint support.
  sh: force dcache flush if dcache_dirty bit set.
  sh: update die() output.

15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 14 Oct 2009 22:25:35 +0000 (15:25 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  oprofile: warn on freeing event buffer too early
  oprofile: fix race condition in event_buffer free
  lockdep: Use cpu_clock() for lockstat

15 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 14 Oct 2009 22:25:23 +0000 (15:25 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf events: Update MAINTAINERS entry file patterns
  perf tools: Remove static debugfs path from parse-events
  perf tools: Fix the NO_64BIT build on pure 64-bit systems
  perf tools: Fix const char type propagation

15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 14 Oct 2009 22:25:04 +0000 (15:25 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Fix missing kernel-doc notation
  Revert "x86, timers: Check for pending timers after (device) interrupts"
  sched: Update the clock of runqueue select_task_rq() selected

15 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 14 Oct 2009 22:24:51 +0000 (15:24 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing/filters: Fix memory leak when setting a filter
  tracing: fix trace_vprintk call

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 14 Oct 2009 22:24:32 +0000 (15:24 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/paravirt: Use normal calling sequences for irq enable/disable
  x86: fix kernel panic on 32 bits when profiling
  x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop
  x86, vmi: Mark VMI deprecated and schedule it for removal

15 years agosysfs: Allow sysfs_notify_dirent to be called from interrupt context.
Neil Brown [Tue, 15 Sep 2009 23:05:51 +0000 (16:05 -0700)]
sysfs: Allow sysfs_notify_dirent to be called from interrupt context.

sysfs_notify_dirent is a simple atomic operation that can be used to
alert user-space that new data can be read from a sysfs attribute.

Unfortunately it cannot currently be called from non-process context
because of its use of spin_lock which is sometimes taken with
interrupts enabled.

So change all lockers of sysfs_open_dirent_lock to disable interrupts,
thus making sysfs_notify_dirent safe to be called from non-process
context (as drivers/md does in md_safemode_timeout).

sysfs_get_open_dirent is (documented as being) only called from
process context, so it uses spin_lock_irq.  Other places
use spin_lock_irqsave.

The usage for sysfs_notify_dirent in md_safemode_timeout was
introduced in 2.6.28, so this patch is suitable for that and more
recent kernels.

Reported-by: Joel Andres Granados <jgranado@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agosysfs: Allow sysfs_move_dir(..., NULL) again.
Cornelia Huck [Tue, 6 Oct 2009 13:33:35 +0000 (15:33 +0200)]
sysfs: Allow sysfs_move_dir(..., NULL) again.

As device_move() and kobject_move() both handle a NULL destination,
sysfs_move_dir() should do this as well (again) and fall back to
sysfs_root in that case.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agotty: use the new 'flush_delayed_work()' helper to do ldisc flush
Linus Torvalds [Wed, 14 Oct 2009 16:20:41 +0000 (09:20 -0700)]
tty: use the new 'flush_delayed_work()' helper to do ldisc flush

This way all flush_to_ldisc work is always done through the workqueues,
and we thus have a single point of serialization.  It also means that we
can avoid calling flush_to_ldisc() entirely if there was no delayed work
pending.

[ Side note: using workqueues and keventd as the single way to enter
  flush_to_ldisc() still doesn't absolutely guarantee that we can't have
  concurrency: keventd is multithreaded and has a thread per CPU, and
  while the WORK_STRUCT_PENDING bit guarantees a single work only being
  on the pending list once, the work might be both pending and _running_
  at the same time. Workqueues are not simple. ]

This was also confirmed to fix bugzilla #14388, even without the earlier
locking fix and cleanup (commit c8e331419: "tty: Make flush_to_ldisc()
locking more robust").  So both commits fix the same bug differently,
and either would have worked on its own.  But I'm committing them both
since they are cleanups independent of each other.

Reported-and-tested-by: Boyan <btanastasov@yahoo.co.uk>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agonet: add support for STMicroelectronics Ethernet controllers.
Giuseppe Cavallaro [Wed, 14 Oct 2009 22:13:45 +0000 (15:13 -0700)]
net: add support for STMicroelectronics Ethernet controllers.

This is the driver for the ST MAC 10/100/1000 on-chip Ethernet
controllers (Synopsys IP blocks).

Driver documentation:
 o http://stlinux.com/drupal/kernel/network/stmmac
Revisions:
 o http://stlinux.com/drupal/kernel/network/stmmac-driver-revisions
Performances:
 o http://stlinux.com/drupal/benchmarks/networking/stmmac

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoworkqueue: add 'flush_delayed_work()' to run and wait for delayed work
Linus Torvalds [Wed, 14 Oct 2009 16:16:42 +0000 (09:16 -0700)]
workqueue: add 'flush_delayed_work()' to run and wait for delayed work

It basically turns a delayed work into an immediate work, and then waits
for it to finish, thus allowing you to force (and wait for) an immediate
flush of a delayed work.

We'll want to use this in the tty layer to clean up tty_flush_to_ldisc().

Acked-by: Oleg Nesterov <oleg@redhat.com>
[ Fixed to use 'del_timer_sync()' as noted by Oleg ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agonet: ks8851_mll uses mii interfaces
Randy Dunlap [Wed, 14 Oct 2009 22:10:58 +0000 (15:10 -0700)]
net: ks8851_mll uses mii interfaces

From: Randy Dunlap <randy.dunlap@oracle.com>

ks8851_mll uses mii interfaces so it needs to select MII.

ks8851_mll.c:(.text+0xf95ac): undefined reference to `generic_mii_ioctl'
ks8851_mll.c:(.text+0xf96a0): undefined reference to `mii_ethtool_gset'
ks8851_mll.c:(.text+0xf96fa): undefined reference to `mii_ethtool_sset'
ks8851_mll.c:(.text+0xf9754): undefined reference to `mii_link_ok'
ks8851_mll.c:(.text+0xf97ae): undefined reference to `mii_nway_restart'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agonet/fec_mpc52xx: Fix kernel panic on FEC error
John Bonesio [Wed, 14 Oct 2009 22:10:19 +0000 (15:10 -0700)]
net/fec_mpc52xx: Fix kernel panic on FEC error

The MDIO bus cannot be accessed at interrupt context, but on an FEC
error, the fec_mpc52xx driver reset function also tries to reset the
PHY.  Since the error is detected at IRQ context, and the PHY functions
try to sleep, the kernel ends up panicking.

Resetting the PHY on an FEC error isn't even necessary.  This patch
solves the problem by removing the PHY reset entirely.

Signed-off-by: John Bonesio <bones@secretlab.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agotty: Make flush_to_ldisc() locking more robust
Linus Torvalds [Wed, 14 Oct 2009 15:59:49 +0000 (08:59 -0700)]
tty: Make flush_to_ldisc() locking more robust

The locking logic in this function is extremely subtle, and it broke
when we started doing potentially concurrent 'flush_to_ldisc()' calls in
commit e043e42bdb66885b3ac10d27a01ccb9972e2b0a3 ("pty: avoid forcing
'low_latency' tty flag").

The code in flush_to_ldisc() used to set 'tty->buf.head' to NULL, with
the intention that this would then cause any other concurrent calls to
not do anything (locking note: we have to drop the buf.lock over the
call to ->receive_buf that can block, which is why we can have
concurrency here at all in the first place).

It also used to set the TTY_FLUSHING bit, which would then cause any
concurrent 'tty_buffer_flush()' to not free all the tty buffers and
clear 'tty->buf.tail'.  And with 'buf.head' being NULL, and 'buf.tail'
being non-NULL, new data would never touch 'buf.head'.

Does that sound a bit too subtle? It was.  If another concurrent call to
'flush_to_ldisc()' were to come in, the NULL buf.head would indeed cause
it to not process the buffer list, but it would still clear TTY_FLUSHING
afterwards, making the buffer protection against 'tty_buffer_flush()' no
longer work.

So this clears it all up.  We depend purely on TTY_FLUSHING for handling
re-entrancy, and stop playing games with the buffer list entirely.  In
fact, the buffer list handling is now robust enough that we could
probably stop doing the whole "protect against 'tty_buffer_flush()'"
thing entirely.

However, Alan also points out that we would probably be better off
simplifying the locking even further, and just take the tty ldisc_mutex
around all the buffer flushing calls.  That seems like a good idea, but
in the meantime this is a conceptually minimal fix (with the patch
itself being bigger than required just to clean the code up and make it
readable).

This fixes keyboard trouble under X:

http://bugzilla.kernel.org/show_bug.cgi?id=14388

Reported-and-tested-by: Frédéric Meunier <fredlwm@gmail.com>
Reported-and-tested-by: Boyan <btanastasov@yahoo.co.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agonet: Fix OF platform drivers coldplug/hotplug when compiled as modules
Anton Vorontsov [Wed, 14 Oct 2009 21:54:52 +0000 (14:54 -0700)]
net: Fix OF platform drivers coldplug/hotplug when compiled as modules

Some OF platform drivers are missing module device tables, so they won't
load automatically on boot. This patch fixes the issue by adding proper
MODULE_DEVICE_TABLE() macros to the drivers.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoUSB: gadget: Fix EEM driver comments and VID/PID
Brian Niebuhr [Wed, 14 Oct 2009 17:04:33 +0000 (12:04 -0500)]
USB: gadget: Fix EEM driver comments and VID/PID

Remove expository comments and fix USB VID and PID

Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agousb-storage: Workaround devices with bogus sense size
Benjamin Herrenschmidt [Tue, 13 Oct 2009 04:53:47 +0000 (15:53 +1100)]
usb-storage: Workaround devices with bogus sense size

usb-storage: Workaround devices with bogus sense size

Some devices, such as Huawei E169, advertise more than the standard
amount of sense data, causing us to set US_FL_SANE_SENSE, assuming
they support it. However, they subsequently fail the request sense
with that size.

This works around it generically. When a sense request fails due to
a device returning an error, US_FL_SANE_SENSE was set, and that sense
request used a larger sense size, we retry with a smaller size before
giving up.

Based on an original patch by Ben Efros <ben@pc-doctor.com>

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: ehci: Fix IST boundary checking interval math.
Sarah Sharp [Fri, 9 Oct 2009 19:28:41 +0000 (12:28 -0700)]
USB: ehci: Fix IST boundary checking interval math.

When the EHCI driver falls behind in its scheduling, the active stream's
first empty microframe may be in the past with respect to the current
microframe.  The code attempts to move the starting microframe ("start") N
number of microframes forward, where N is the interval of endpoint.
However, stream->interval is a copy of the endpoint's bInterval, which is
designated in frames for FS devices, and microframes for HS devices.
Convert stream->interval to microframes before using it to move the
starting microframe forward.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: option: Support for AIRPLUS MCD650 Datacard
Huzaifa Sidhpurwala [Mon, 12 Oct 2009 09:04:45 +0000 (14:34 +0530)]
USB: option: Support for AIRPLUS MCD650 Datacard

Here is a patch for Airplus MCD 650 card

Note: This device is with Victor V Kudlak, and he confirmed that this
device works with the patch.

Signed-off-by: Huzaifa Sidhpurwala <sidhpurwala.huzaifa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: whci-hcd: always do an update after processing a halted qTD
David Vrabel [Mon, 12 Oct 2009 15:45:16 +0000 (15:45 +0000)]
USB: whci-hcd: always do an update after processing a halted qTD

A halted qTD always triggers a hardware list update because the qset was
either removed or reactivated.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: whci-hcd: handle early deletion of endpoints
David Vrabel [Mon, 12 Oct 2009 15:45:15 +0000 (15:45 +0000)]
USB: whci-hcd: handle early deletion of endpoints

If an endpoint is deleted before it's been fully added to the hardware
list, the associated qset will not be fully initialized and an oops will
occur when complete(&qset->remove_complete) is called.  This can happen
if a queued URB is cancelled.

Fix this by only removing the qset from the hardware list if the
cancelled URB had qTDs.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: wusb: don't use the stack to read security descriptor
Stefano Panella [Mon, 12 Oct 2009 15:45:14 +0000 (15:45 +0000)]
USB: wusb: don't use the stack to read security descriptor

An urb's transfer buffer must be kmalloc'd memory and not point to the
stack or a DMA API warning results.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: rename Documentation/ABI/.../sysfs-class-usb_host
David Vrabel [Mon, 12 Oct 2009 15:45:13 +0000 (15:45 +0000)]
USB: rename Documentation/ABI/.../sysfs-class-usb_host

The usb_host class is no more.  Rename its documentation file (which
only contained WUSB specific files) to .../sysfs-class-uwb_rc-wusbhc.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agox86: linker script syntax nits
Roland McGrath [Wed, 14 Oct 2009 21:16:38 +0000 (14:16 -0700)]
x86: linker script syntax nits

The linker scripts grew some use of weirdly wrong linker script syntax.
It happens to work, but it's not what the syntax is documented to be.
Clean it up to use the official syntax.

Signed-off-by: Roland McGrath <roland@redhat.com>
CC: Ian Lance Taylor <iant@google.com>
15 years agoStaging: rt2860sta: prevent a panic when disabling when associated
Darren Salt [Wed, 14 Oct 2009 01:19:22 +0000 (02:19 +0100)]
Staging: rt2860sta: prevent a panic when disabling when associated

This fixes a panic which is triggered when the hardware "disappears" from
beneath the driver, i.e. when wireless is toggled off via Fn-F2 on various
EeePC models.

Ref. bug report http://bugzilla.kernel.org/show_bug.cgi?id=13390
          panic http://bugzilla.kernel.org/attachment.cgi?id=21928

Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agostaging: more sched.h fixes
Jeff Mahoney [Tue, 13 Oct 2009 00:28:11 +0000 (20:28 -0400)]
staging: more sched.h fixes

This patch contains more sched.h additions for drivers that built
fine under x86_64 but not i386 for some reason.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: et131x: Fix the add_10bit macro
Alan Cox [Mon, 12 Oct 2009 14:38:26 +0000 (15:38 +0100)]
Staging: et131x: Fix the add_10bit macro

Duh.. we need to preserve the wrap bit when adding.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: et131x: Correct WRAP bit handling
Alan Cox [Mon, 12 Oct 2009 14:38:17 +0000 (15:38 +0100)]
Staging: et131x: Correct WRAP bit handling

add_10bit loses the existing wrap value

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agostaging: Complete sched.h removal from interrupt.h
Jeff Mahoney [Mon, 12 Oct 2009 21:10:34 +0000 (17:10 -0400)]
staging: Complete sched.h removal from interrupt.h

Commit d43c36dc removed sched.h from interrupt.h and distributed sched.h
to users which needed it. This finishes it up for staging.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: vme: fix sched.h build breakage
Greg Kroah-Hartman [Mon, 12 Oct 2009 22:00:08 +0000 (15:00 -0700)]
Staging: vme: fix sched.h build breakage

commit d43c36dc removed sched.h from interrupt.h.  This broke the
vme drivers.  This patch fixes them.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: poch: fix sched.h build breakage
Greg Kroah-Hartman [Mon, 12 Oct 2009 21:59:56 +0000 (14:59 -0700)]
Staging: poch: fix sched.h build breakage

commit d43c36dc removed sched.h from interrupt.h.  This broke the
poch driver.  This patch fixes this.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: b3dfg: fix sched.h build breakage
Greg Kroah-Hartman [Mon, 12 Oct 2009 21:59:33 +0000 (14:59 -0700)]
Staging: b3dfg: fix sched.h build breakage

commit d43c36dc removed sched.h from interrupt.h.  This broke the
b3dfg driver.  This patch fixes this.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: comedi: fix sched.h build breakage
Greg Kroah-Hartman [Mon, 12 Oct 2009 21:58:16 +0000 (14:58 -0700)]
Staging: comedi: fix sched.h build breakage

commit d43c36dc removed sched.h from interrupt.h.  This broke some of
the comedi drivers.  This patch fixes this.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoStaging: iio: Fix missing include <linux/sched.h>
Jonathan Cameron [Mon, 12 Oct 2009 18:18:09 +0000 (19:18 +0100)]
Staging: iio: Fix missing include <linux/sched.h>

linux/sched.h include was removed form linux/poll.h by
commmit a99bbaf5ee6bad1aca0c88ea65ec6e5373e86184

Required for definition of TASK_INTERRUPTIBLE amongst others

From: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agofirewire: sbp2: provide fallback if mgt_ORB_timeout is missing
Stefan Richter [Wed, 7 Oct 2009 22:39:31 +0000 (00:39 +0200)]
firewire: sbp2: provide fallback if mgt_ORB_timeout is missing

The Unit_Characteristics entry of an SBP-2 unit directory is not
mandatory as far as I can tell.  If it is missing, we would probably
fail to log in into the target because firewire-sbp2 would not wait for
status after it sent the login request.

The fix moves the cleanup of tgt->mgt_orb_timeout into a place where it
is executed exactly once before login, rather than 0..n times depending
on the target's config ROM.  With targets with one or more
Unit_Characteristics entries, the result is the same as before.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
15 years agotty: use the new 'flush_delayed_work()' helper to do ldisc flush
Linus Torvalds [Wed, 14 Oct 2009 16:20:41 +0000 (09:20 -0700)]
tty: use the new 'flush_delayed_work()' helper to do ldisc flush

This way all flush_to_ldisc work is always done through the workqueues,
and we thus have a single point of serialization.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoworkqueue: add 'flush_delayed_work()' to run and wait for delayed work
Linus Torvalds [Wed, 14 Oct 2009 16:16:42 +0000 (09:16 -0700)]
workqueue: add 'flush_delayed_work()' to run and wait for delayed work

It basically turns a delayed work into an immediate work, and then waits
for it to finish.

15 years agoMake flush_to_ldisc properly handle parallel calls
Linus Torvalds [Wed, 14 Oct 2009 15:59:49 +0000 (08:59 -0700)]
Make flush_to_ldisc properly handle parallel calls

15 years agoBtrfs: always pin metadata in discard mode
Chris Mason [Wed, 14 Oct 2009 13:38:28 +0000 (09:38 -0400)]
Btrfs: always pin metadata in discard mode

We have an optimization in btrfs to allow blocks to be
immediately freed if they were allocated in this transaction and never
written.  Otherwise they are pinned and freed when the transaction
commits.

This isn't optimal for discard mode because immediately freeing
them means immediately discarding them.  It is better to give the
block to the pinning code and letting the (slow) discard happen later.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: enable discard support
Christoph Hellwig [Wed, 14 Oct 2009 13:24:59 +0000 (09:24 -0400)]
Btrfs: enable discard support

The discard support code in btrfs currently is guarded by ifdefs for
BIO_RW_DISCARD, which is never defines as it's the name of an enum
memeber.  Just remove the useless ifdefs to actually enable the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: add -o discard option
Christoph Hellwig [Wed, 14 Oct 2009 13:24:59 +0000 (09:24 -0400)]
Btrfs: add -o discard option

Enable discard by default is not a good idea given the the trim speed
of SSD prototypes we've seen, and the carecteristics for many high-end
arrays.  Turn of discards by default and require the -o discard option
to enable them on.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: properly wait log writers during log sync
Yan, Zheng [Wed, 14 Oct 2009 13:24:59 +0000 (09:24 -0400)]
Btrfs: properly wait log writers during log sync

A recently fsync optimization make btrfs_sync_log skip calling
wait_for_writer in the single log writer case. This is incorrect
since the writer count can also be increased by btrfs_pin_log.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: fix possible ENOSPC problems with truncate
Josef Bacik [Tue, 13 Oct 2009 20:46:49 +0000 (16:46 -0400)]
Btrfs: fix possible ENOSPC problems with truncate

There's a problem where we don't do any space reservation for truncates, which
can cause you to OOPs because you will be allowed to go off in the weeds a bit
since we don't account for the delalloc bytes that are created as a result of
the truncate.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years ago[S390] sclp_vt220 build fix
Michael Holzheu [Wed, 14 Oct 2009 10:43:51 +0000 (12:43 +0200)]
[S390] sclp_vt220 build fix

Fix this build error:

next-20091013 randconfig build on s390x build breaks with

drivers/s390/built-in.o:(.data+0x3354): undefined reference to `sclp_vt220_pm_event_fn'

Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <michael.holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] cio: change misleading console logic
Peter Oberparleiter [Wed, 14 Oct 2009 10:43:50 +0000 (12:43 +0200)]
[S390] cio: change misleading console logic

Use cio_is_console() in io_subchannel_probe to indicate that the
special handling is console specific. As long as there is no other
subchannel for which this might be true, it is misleading to speak
of "early devices". Should more of these devices be introduced,
a cleanup of all console special handling is in order anyway.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] call home support: fix proc handler
Heiko Carstens [Wed, 14 Oct 2009 10:43:49 +0000 (12:43 +0200)]
[S390] call home support: fix proc handler

8d65af78 "sysctl: remove "struct file *" argument of ->proc_handler"
removed the struct file argument from all proc_handlers but didn't
change the call home proc handler (or call home was merged later).

So fix this now.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Hans-Joachim Picht <hans@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] dasd: use idal for device characteristics
Stefan Haberland [Wed, 14 Oct 2009 10:43:48 +0000 (12:43 +0200)]
[S390] dasd: use idal for device characteristics

If the rdc_buffer is above 2G we need indirect addresssing so we have
to use an idaw to give the rdc_buffer to the ccw.
If the rdc_buffer is under 2G nothing changes.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] Add highgprs facility to /proc/cpuinfo
Andreas Krebbel [Wed, 14 Oct 2009 10:43:47 +0000 (12:43 +0200)]
[S390] Add highgprs facility to /proc/cpuinfo

This patch makes the hwcap bit for the high gprs feature to be visible
in /proc/cpuinfo.

Signed-off-by: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] dasd: fix locking bug
Stefan Haberland [Wed, 14 Oct 2009 10:43:46 +0000 (12:43 +0200)]
[S390] dasd: fix locking bug

Replace spin_lock with spin_lock_irqsave in dasd_eckd_restore_device.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] tape390: Fix request queue handling in block driver
Michael Holzheu [Wed, 14 Oct 2009 10:43:45 +0000 (12:43 +0200)]
[S390] tape390: Fix request queue handling in block driver

When setting a channel attached tape online under Linux 2.6.31, the

"vol_id" process from udev hangs in sync_page():
 2 sync_page+144 [0x1dfaac]
 3 __wait_on_bit_lock+194 [0x58c23e]
 4 __lock_page+116 [0x1df9dc]
 5 truncate_inode_pages_range+728 [0x1ed7cc]
 6 __blkdev_put+244 [0x25f738]
 7 __fput+300 [0x229c4c]
 8 filp_close+122 [0x225a3a]

The reason for that is an error in the request queue handling. It can
happen that we fetch a request, but do not process it further because
the number of queued requests exceeds TAPEBLOCK_MIN_REQUEUE.
To fix this, we should call blk_peek_request() instead of
blk_fetch_request() in the while condition and fetch the request in
the loop body afterwards.

This bug was introduced with the patch "block: implement and enforce
request peek/start/fetch" (9934c8c04561413609d2bc38c6b9f268cba774a4)

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] hypfs: Use subcode 6 if subcode 7 is not available
Michael Holzheu [Wed, 14 Oct 2009 10:43:44 +0000 (12:43 +0200)]
[S390] hypfs: Use subcode 6 if subcode 7 is not available

Hypfs never worked on systems that only provide D204 subcode 6.
In these cases we nevertheless used subcode 7. With this fix, we
use subcode 6, if it is available and the system does not provide
subcode 7.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years agowatchdog: Fix rio watchdog probe function
Thomas Gleixner [Wed, 14 Oct 2009 08:18:26 +0000 (01:18 -0700)]
watchdog: Fix rio watchdog probe function

After sucessfully registering the misc device the driver iounmaps the
hardware registers and kfree's the device data structure. Ouch !

This was introduced with commit e42311d75 (riowatchdog: Convert to
pure OF driver) and went unnoticed for more than a year :)

Return success instead of dropping into the error cleanup code path.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosh: Fix a TRACE_IRQS_OFF typo.
Paul Mundt [Wed, 14 Oct 2009 06:50:28 +0000 (15:50 +0900)]
sh: Fix a TRACE_IRQS_OFF typo.

The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so
never handled the transition properly. This was fixed once before but
seems to have made it back in the tree. Fix it for good.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Optimize the setup_rt_frame() I-cache flush.
Paul Mundt [Wed, 14 Oct 2009 05:21:40 +0000 (14:21 +0900)]
sh: Optimize the setup_rt_frame() I-cache flush.

This only needs to flush the return code via the legacy path, and just
invalidates uselessly otherwise. This makes the behaviour consistent for
all of the trampoline setup paths.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Populate initial secondary CPU info from boot_cpu_data.
Paul Mundt [Wed, 14 Oct 2009 05:14:30 +0000 (14:14 +0900)]
sh: Populate initial secondary CPU info from boot_cpu_data.

The secondary CPU info was seeing corrupted results due to not entering
all of the setup paths taken by the boot CPU. So we just memcpy() the
boot cpu data over directly, and then fix up the per-CPU bits.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Tidy up SMP cpuinfo.
Paul Mundt [Wed, 14 Oct 2009 05:13:41 +0000 (14:13 +0900)]
sh: Tidy up SMP cpuinfo.

Trivial change for cleaning up the cpuinfo pretty printing on SMP, adds a
newline between CPUs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Use boot_cpu_data for FPU tests in sigcontext paths.
Paul Mundt [Wed, 14 Oct 2009 05:12:41 +0000 (14:12 +0900)]
sh: Use boot_cpu_data for FPU tests in sigcontext paths.

We do not want to use smp_processor_id() from these paths, as they trip
preempt BUGs. Switch the test over to the boot cpu directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoTI DaVinci EMAC: Clear statistics register properly.
Sriram [Wed, 7 Oct 2009 02:44:30 +0000 (02:44 +0000)]
TI DaVinci EMAC: Clear statistics register properly.

The mechanism to clear the statistics register is dependent
on the status of GMIIEN bit in MAC control register. If the
GMIIEN bit is set, the stats registers are write to decrement.
If the GMIIEN bit is cleared, the stats registers are plain
read/write registers. The stats register clearing operation
must take into account the current state of GMIIEN as it
can be cleared when the interface is brought down.

With existing implementation logic, querying for interface stats
when the interface is down, can corrupt the statistics counters.
This patch examines the GMIIEN bit status in MAC_CONTROL
register before choosing an appropriate mask for clearing stats
registers.

Signed-off-by: Sriramakrishnan <srk@ti.com>
Acked-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agor8169: partial support and phy init for the 8168d
françois romieu [Wed, 7 Oct 2009 12:44:20 +0000 (12:44 +0000)]
r8169: partial support and phy init for the 8168d

Extracted from Realtek's 8.012.00 r8168 driver.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Simon Farnsworth <simon.farnsworth@onelan.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Tue, 13 Oct 2009 18:41:34 +0000 (11:41 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

15 years agoBtrfs: fix btrfs acl #ifdef checks
Chris Mason [Tue, 13 Oct 2009 17:50:18 +0000 (13:50 -0400)]
Btrfs: fix btrfs acl #ifdef checks

The btrfs acl code was #ifdefing for a define
that didn't exist.  This correctly matches it
to the values used by the Kconfig file.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: streamline tree-log btree block writeout
Chris Mason [Tue, 13 Oct 2009 17:29:19 +0000 (13:29 -0400)]
Btrfs: streamline tree-log btree block writeout

Syncing the tree log is a 3 phase operation.

1) write and wait for all the tree log blocks for a given root.

2) write and wait for all the tree log blocks for the
tree of tree log roots.

3) write and wait for the super blocks (barriers here)

This isn't as efficient as it could be because there is
no requirement to wait for the blocks from step one to hit the disk
before we start writing the blocks from step two.  This commit
changes the sequence so that we don't start waiting until
all the tree blocks from both steps one and two have been sent
to disk.

We do this by breaking up btrfs_write_wait_marked_extents into
two functions, which is trivial because it was already broken
up into two parts.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: avoid tree log commit when there are no changes
Chris Mason [Tue, 13 Oct 2009 17:21:08 +0000 (13:21 -0400)]
Btrfs: avoid tree log commit when there are no changes

rpm has a habit of running fdatasync when the file hasn't
changed.  We already detect if a file hasn't been changed
in the current transaction but it might have been sent to
the tree-log in this transaction and not changed since
the last call to fsync.

In this case, we want to avoid a tree log sync, which includes
a number of synchronous writes and barriers.  This commit
extends the existing tracking of the last transaction to change
a file to also track the last sub-transaction.

The end result is that rpm -ivh and -Uvh are roughly twice as fast,
and on par with ext3.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: only write one super copy during fsync
Chris Mason [Tue, 13 Oct 2009 16:55:09 +0000 (12:55 -0400)]
Btrfs: only write one super copy during fsync

During a tree-log commit for fsync, we've been writing at least
two copies of the super block and forcing them to disk.

The other filesystems write only one, and this change brings us on
par with them.  A full transaction commit will write all the super
copies, so we still have redundant info written on a regular
basis.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Tue, 13 Oct 2009 17:21:33 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cciss: Add cciss_allow_hpsa module parameter
  cciss: Fix multiple calls to pci_release_regions
  blk-settings: fix function parameter kernel-doc notation
  writeback: kill space in debugfs item name
  writeback: account IO throttling wait as iowait
  elv_iosched_store(): fix strstrip() misuse
  cfq-iosched: avoid probable slice overrun when idling
  cfq-iosched: apply bool value where we return 0/1
  cfq-iosched: fix think time allowed for seekers
  cfq-iosched: fix the slice residual sign
  cfq-iosched: abstract out the 'may this cfqq dispatch' logic
  block: use proper BLK_RW_ASYNC in blk_queue_start_tag()
  block: Seperate read and write statistics of in_flight requests v2
  block: get rid of kblock_schedule_delayed_work()
  cfq-iosched: fix possible problem with jiffies wraparound
  cfq-iosched: fix issue with rq-rq merging and fifo list ordering

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Linus Torvalds [Tue, 13 Oct 2009 17:21:12 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tj/percpu

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  percpu: fix compile warnings

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Linus Torvalds [Tue, 13 Oct 2009 17:20:53 +0000 (10:20 -0700)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: revert "save ARCH & CROSS_COMPILE ..."
  warn about use of uninstalled kernel headers
  kbuild: mkcompile_h: trivial cleanups
  kbuild: fix warning when domainname is not available
  kbuild: Fix size_append issue for bzip2/lzma kernel
  kbuild,scripts: use non-builtin echo for '-e'
  kbuild: fix the binrpm-pkg target to work with KBUILD_OUTPUT set

15 years agoheaders: Fix build after <linux/sched.h> removal
Ingo Molnar [Mon, 12 Oct 2009 14:22:46 +0000 (16:22 +0200)]
headers: Fix build after <linux/sched.h> removal

Commit d43c36dc6b357fa1806800f18aa30123c747a6d1 ("headers: remove
sched.h from interrupt.h") left some build errors in some configurations
due to drivers having depended on getting header files "accidentally".

Signed-off-by: Ingo Molnar <mingo@elte.hu>
[ Combined several one-liners from Ingo into one single patch  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Tue, 13 Oct 2009 17:10:33 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix possible deadlock in hidraw_read
  HID: fix kerneldoc comment for hid_input_report()
  HID: add __init/__exit macros to twinhan.c

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Tue, 13 Oct 2009 17:10:18 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Allow all formats as default for Nvidia HDMI
  ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
  ALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228
  ALSA: hda - Fix mute sound with STAC9227/9228 codecs
  ALSA: bt87x - Add a whitelist for Pinnacle PCTV (11bd:0012)
  ALSA: hda - Fix overflow of spec->init_verbs in patch_realtek.c
  ALSA: ice1724 - Make call to set hw params succeed on ESI Juli@
  ALSA: ice1724: Fix surround on Chaintech AV-710
  ALSA: hda - Add full rates/formats support for Nvidia HDMI

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Tue, 13 Oct 2009 17:05:36 +0000 (10:05 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  ext3: Update documentation about ext3 quota mount options
  ext3: Don't update superblock write time when filesystem is read-only

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Tue, 13 Oct 2009 17:05:04 +0000 (10:05 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: Fix twl4030 boot with twl4030 usb transceiver enabled

15 years agoMerge git://git.infradead.org/~dwmw2/iommu-2.6.32
Linus Torvalds [Tue, 13 Oct 2009 17:04:40 +0000 (10:04 -0700)]
Merge git://git.infradead.org/~dwmw2/iommu-2.6.32

* git://git.infradead.org/~dwmw2/iommu-2.6.32:
  x86: Move pci_iommu_init to rootfs_initcall()
  Run pci_apply_final_quirks() sooner.
  Mark pci_apply_final_quirks() __init rather than __devinit
  Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c
  intel-iommu: Yet another BIOS workaround: Isoch DMAR unit with no TLB space
  intel-iommu: Decode (and ignore) RHSA entries
  intel-iommu: Make "Unknown DMAR structure" message more informative

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Tue, 13 Oct 2009 14:09:56 +0000 (16:09 +0200)]
Merge branch 'fix/hda' into for-linus

15 years agoALSA: hda - Allow all formats as default for Nvidia HDMI
Takashi Iwai [Tue, 13 Oct 2009 14:07:59 +0000 (16:07 +0200)]
ALSA: hda - Allow all formats as default for Nvidia HDMI

In the commit f0613d5752d8f7d1d02e6d40947f38877fdf9c90
    ALSA: hda - Add full rates/formats support for Nvidia HDMI
the flag LIMITIED_RATE_FMT_SUPPORT was set as default, as I forgot
to clear before commit.

Let's enable all formats/rates as default.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
Philby John [Tue, 13 Oct 2009 11:00:22 +0000 (16:30 +0530)]
ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout

After a reboot on an ARM1176 which amounts to a softreset, it has been
noted that the ALSA driver does not get registered and the probe fails
with the error "aaci-pl041 fpga:04: ac97 read back fail". In the process
of reading from a register the SL1TxBusy bit is set indicating that the
transceiver is busy and remains so until the default timeout occurs.
Set the Power down register 0x26 to an arbitrary value as specified in
the PL041 manual (page: 3-18) so that AACISL1TX/AACISL2TX registers take
their default state.

Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228
Takashi Iwai [Tue, 13 Oct 2009 13:32:21 +0000 (15:32 +0200)]
ALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228

The volume-knob widget needs to be set with 0x7f instead of 0xff
for Dell laptops with STAC9228 codec, too, like the previous commit.

Reference: Novell bnc#545013
http://bugzilla.novell.com/show_bug.cgi?id=545013

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Fix mute sound with STAC9227/9228 codecs
Takashi Iwai [Sun, 11 Oct 2009 15:38:29 +0000 (17:38 +0200)]
ALSA: hda - Fix mute sound with STAC9227/9228 codecs

On FSC laptops, the sound gets muted gradually when the volume is chnaged.
This is due to the wrong volume-knob widget setup.  The delta bit (bit 7)
shouldn't be set for these devices.

This patch adds a new quirk to set the value 0x7f to the widget 0x24
instead of 0xff.

Reference: Novell bnc#546006
http://bugzilla.novell.com/show_bug.cgi?id=546006

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoperf events: Update MAINTAINERS entry file patterns
Vincent Legoll [Tue, 13 Oct 2009 12:48:14 +0000 (14:48 +0200)]
perf events: Update MAINTAINERS entry file patterns

Add file patterns that match relevant files for this subsystem.

Signed-off-by: Vincent Legoll <vincent.legoll@gmail.com>
Cc: Linus Torvalds <torvalds@osdl.org>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <4727185d0910130548p325f0185vf4e23b5491c730a0@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoirda/sa1100_ir: check return value of startup hook
Dmitry Artamonow [Tue, 13 Oct 2009 10:17:37 +0000 (03:17 -0700)]
irda/sa1100_ir: check return value of startup hook

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoudp: Fix udp_poll() and ioctl()
Eric Dumazet [Fri, 9 Oct 2009 04:43:40 +0000 (04:43 +0000)]
udp: Fix udp_poll() and ioctl()

udp_poll() can in some circumstances drop frames with incorrect checksums.

Problem is we now have to lock the socket while dropping frames, or risk
sk_forward corruption.

This bug is present since commit 95766fff6b9a78d1
([UDP]: Add memory accounting.)

While we are at it, we can correct ioctl(SIOCINQ) to also drop bad frames.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoWAN: fix Cisco HDLC handshaking.
Krzysztof Halasa [Fri, 9 Oct 2009 06:16:10 +0000 (06:16 +0000)]
WAN: fix Cisco HDLC handshaking.

Cisco HDLC uses keepalive packets and sequence numbers to determine link
state. In rare cases both ends could transmit keepalive packets at the same
time, causing the received sequence numbers to be treated as incorrect.
Now we accept our current sequence number as well as the previous one.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agotcp: fix tcp_defer_accept to consider the timeout
Willy Tarreau [Tue, 13 Oct 2009 07:27:40 +0000 (00:27 -0700)]
tcp: fix tcp_defer_accept to consider the timeout

I was trying to use TCP_DEFER_ACCEPT and noticed that if the
client does not talk, the connection is never accepted and
remains in SYN_RECV state until the retransmits expire, where
it finally is deleted. This is bad when some firewall such as
netfilter sits between the client and the server because the
firewall sees the connection in ESTABLISHED state while the
server will finally silently drop it without sending an RST.

This behaviour contradicts the man page which says it should
wait only for some time :

       TCP_DEFER_ACCEPT (since Linux 2.4)
          Allows a listener to be awakened only when data arrives
          on the socket.  Takes an integer value  (seconds), this
          can  bound  the  maximum  number  of attempts TCP will
          make to complete the connection. This option should not
          be used in code intended to be portable.

Also, looking at ipv4/tcp.c, a retransmit counter is correctly
computed :

        case TCP_DEFER_ACCEPT:
                icsk->icsk_accept_queue.rskq_defer_accept = 0;
                if (val > 0) {
                        /* Translate value in seconds to number of
                         * retransmits */
                        while (icsk->icsk_accept_queue.rskq_defer_accept < 32 &&
                               val > ((TCP_TIMEOUT_INIT / HZ) <<
                                       icsk->icsk_accept_queue.rskq_defer_accept))
                                icsk->icsk_accept_queue.rskq_defer_accept++;
                        icsk->icsk_accept_queue.rskq_defer_accept++;
                }
                break;

==> rskq_defer_accept is used as a counter of retransmits.

But in tcp_minisocks.c, this counter is only checked. And in
fact, I have found no location which updates it. So I think
that what was intended was to decrease it in tcp_minisocks
whenever it is checked, which the trivial patch below does.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosparc64: Set IRQF_DISABLED on LDC channel IRQs.
David S. Miller [Tue, 13 Oct 2009 07:49:09 +0000 (00:49 -0700)]
sparc64: Set IRQF_DISABLED on LDC channel IRQs.

With lots of virtual devices it's easy to generate a lot of
events and chew up the kernel IRQ stack.

Reported-by: hyl <heyongli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago3c574_cs: spin_lock the set_multicast_list function
Ken Kawasaki [Tue, 13 Oct 2009 07:32:55 +0000 (00:32 -0700)]
3c574_cs: spin_lock the set_multicast_list function

3c574_cs:
 spin_lock the set_multicast_list function.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agonet: Teach pegasus driver to ignore bluetoother adapters with clashing Vendor:Product IDs
Chris Rankin [Tue, 13 Oct 2009 07:32:02 +0000 (00:32 -0700)]
net: Teach pegasus driver to ignore bluetoother adapters with clashing Vendor:Product IDs

The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
ignore adaptors belonging to the "Wireless" class 0xE0. For this one
case anyway, seeing as pegasus is a driver for "Wired" adaptors.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>