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>

The usage of this "mutex"es is non obvious and probably a completion
in some places. Make them semaphores.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>

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: Alan Cox <alan@lxorguk.ukuu.org.uk>

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 Miller <davem@davemloft.net>

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 Miller <davem@davemloft.net>

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 Miller <davem@davemloft.net>

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 Miller <davem@davemloft.net>

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: Dmitry Torokhov <dtor@mail.ru>

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: Dmitry Torokhov <dtor@mail.ru>

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: Dmitry Torokhov <dtor@mail.ru>

The usage of these "mutex"es is non obvious and probably a completion in
some places. Make them semaphores.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dmitry Torokhov <dtor@mail.ru>

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: Dmitry Torokhov <dtor@mail.ru>

The full cleanup of init_MUTEX[_LOCKED] and DECLARE_MUTEX has not been
done. Some of the users are real semaphores and we should name them as
such instead of confusing everyone with "MUTEX".

Provide the infrastructure to get finally rid of init_MUTEX[_LOCKED]
and DECLARE_MUTEX.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>