This fixes the following error:

  CC      drivers/mfd/ucb1x00-core.o
  drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_adc_enable':
  drivers/mfd/ucb1x00-core.c:138: error: implicit declaration of function 'down'
  drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_adc_disable':
  drivers/mfd/ucb1x00-core.c:196: error: implicit declaration of function 'up'
  drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_probe':
  drivers/mfd/ucb1x00-core.c:500: error: implicit declaration of function 'sema_init'
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
LKML-Reference: <1249677761-19470-1-git-send-email-u.kleine-koenig@pengutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Add anon_semaphore to annotate the code for real anonymous semaphores.
Map semaphores to them for !RT
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

This reverts commit 2e272570.

hch muttered: "Actually we may return to userspace with it held, so
the conversion is a bad idea.  But I have a patch I need to post to
completely get rid of it."
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Both locks have no struct owner rules and therefor preempt-rt must
keep them as real semaphores. Convert them to rw_anon_semaphores and
annotate their semantics hereby.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

i_alloc_sem is used as a completion in direct-io which does not follow
owner rules. preempt-rt needs to keep it as such. So convert it to
rw_anon_semaphore and annotate the semantics hereby.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Most of the rw_semaphores have struct owner semantics. i_alloc_sem and
two xfs ones are used as both semaphores and completions. That makes
it hard to convert for preempt-rt. Add an rw_anon_semaphores type
which is not converted on -rt.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Semaphores used as mutexes have been deprecated for years. Now that
all users are either converted to real semaphores or to mutexes remove
the cruft.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

bd_mount_sem is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

init_MUTEX(_LOCKED) and DECLARE_MUTEX are going away. Bulk convert
staging users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>

It needs to be investigated whether it can be replaced by a real
mutex, but that needs more thought and investigation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

The semaphore is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Wan ZongShun <mcuos.com@gmail.com>

The usage of this "mutex" is non obvious and used as completion in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>

The usage of this "mutex" is non obvious and used as completion in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>

The semaphore is used as mutex so make it a mutex. Clean up all
users outside of drivers/base as well.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

The usage of this "mutex" is non obvious. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Roland Dreier <rolandd@cisco.com>

The usage of this "mutex" is non obvious and probably a completions in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>

The usage of this "mutex" is non obvious and probably a completions in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Pierre Ossman <drzeus@drzeus.cx>

The usage of this "mutex" is non obvious and probably a completion in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David S. Miller <davem@davemloft.net>

The usage of this "mutex" is non obvious and probably a completions in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David S. Miller <davem@davemloft.net>

bp->b_sema claims to be a mutex, but it is a semaphore with non
obvious semantics. Make it a real semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc:  Christoph Hellwig <hch@lst.de>

The semaphore is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>

The "mutex" ftdi->sw_lock is used as a lock and a completion. Convert
it to a real semaphore which allows both.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>

The usage of these "mutex" is non obvious and probably a completion
in some places. Make it them semaphores.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

pSesInfo->sesSem is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steve French <sfrench@us.ibm.com>

tree_lock is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

tree_lock is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

sbi->hpfs_creation_de is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

server->sem is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>

hdev->req_lock is used as mutex so make it a mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marcel Holtmann <marcel@holtmann.org>

The usage of these "mutex"es is non obvious and probably completions
in some places. Make it them semaphores.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>

The usage of this "mutex" is non obvious and probably a completion in
some places. Make it a semaphore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>