Move the SoC specific timer code from AP4EVB and Mackerel
to sh7372 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Move the SoC specific timer code from G4EVM board code
to sh7377 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Move the SoC specific timer code from G3EVM board code
to sh7367 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Add shmobile_earlytimer_init() that can be used to
enable the earlytimer probing from the SoC code.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Move the board specific external clock setting for sh7372 AP4EVB
from machine_desc->sys_timer->init() to machine_desc->init_machine().

This is ground work for shmobile timer code consolidation.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Move the board specific external clock setting for sh7372 Mackerel
from machine_desc->sys_timer->init() to machine_desc->init_machine().

This is ground work for shmobile timer code consolidation.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Rename clk_init() to shmobile_clk_init() to avoid a potential
future name space collision with the common clock framework.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

L2 Cache support for r8a7779. Settings taken from
out-of-tree kernel patches by Kouei Abe.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the r8a7779 SoC and the Marzen board to make use of
the functions r8a7779_map_io() and r8a7779_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the r8a7740 SoC and the Bonito board to make use of
the functions r8a7740_map_io() and r8a7740_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the sh73a0 SoC and the AG5EVM and Kota2 boards to make use
of the functions sh73a0_map_io() and sh73a0_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the sh7372 SoC and the AP4EVB and Mackerel boards to make use
of the functions sh7372_map_io() and sh7372_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the sh7377 SoC and the G4EVM board to make use of the
functions sh7377_map_io() and sh7377_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Update the sh7367 SoC and the G3EVM board to make use of the
functions sh7367_map_io() and sh7367_add_early_devices().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Now when all clk_ops have been renamed it is
safe to rename clk_ops to sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert remaining sh board code to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh5 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh4a SoCs to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh4 SoCs to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh3 SoCs to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh2a SoCs to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh2 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert the sh include asm/clock.h to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert r8a7779 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert r8a7740 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh73a0 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh7372 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh7377 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert sh7367 to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Convert the CPG code to use sh_clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Introduce sh_clk_ops in parallel with clk_ops.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

Current code has put_ioctx() called asynchronously from aio_fput_routine();
that's done *after* we have killed the request that used to pin ioctx,
so there's nothing to stop io_destroy() waiting in wait_for_all_aios()
from progressing.  As the result, we can end up with async call of
put_ioctx() being the last one and possibly happening during exit_mmap()
or elf_core_dump(), neither of which expects stray munmap() being done
to them...

We do need to prevent _freeing_ ioctx until aio_fput_routine() is done
with that, but that's all we care about - neither io_destroy() nor
exit_aio() will progress past wait_for_all_aios() until aio_fput_routine()
does really_put_req(), so the ioctx teardown won't be done until then
and we don't care about the contents of ioctx past that point.

Since actual freeing of these suckers is RCU-delayed, we don't need to
bump ioctx refcount when request goes into list for async removal.
All we need is rcu_read_lock held just over the ->ctx_lock-protected
area in aio_fput_routine().
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Reviewed-by: NJeff Moyer <jmoyer@redhat.com>
Acked-by: NBenjamin LaHaise <bcrl@kvack.org>
Cc: stable@vger.kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Have ioctx_alloc() return an extra reference, so that caller would drop it
on success and not bother with re-grabbing it on failure exit.  The current
code is obviously broken - io_destroy() from another thread that managed
to guess the address io_setup() would've returned would free ioctx right
under us; gets especially interesting if aio_context_t * we pass to
io_setup() points to PROT_READ mapping, so put_user() fails and we end
up doing io_destroy() on kioctx another thread has just got freed...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Acked-by: NBenjamin LaHaise <bcrl@kvack.org>
Reviewed-by: NJeff Moyer <jmoyer@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull btrfs updates from Chris Mason:
 "I have two additional and btrfs fixes in my for-linus branch.  One is
  a casting error that leads to memory corruption on i386 during scrub,
  and the other fixes a corner case in the backref walking code (also
  triggered by scrub)."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix casting error in scrub reada code
  btrfs: fix locking issues in find_parent_nodes()

Respectfully revert commit e6ca7b89 "memcg: fix mapcount check
in move charge code for anonymous page" for the 3.3 release, so that
it behaves exactly like releases 2.6.35 through 3.2 in this respect.

Horiguchi-san's commit is correct in itself, 1 makes much more sense
than 2 in that check; but it does not go far enough - swapcount
should be considered too - if we really want such a check at all.

We appear to have reached agreement now, and expect that 3.4 will
remove the mapcount check, but had better not make 3.3 different.
Signed-off-by: NHugh Dickins <hughd@google.com>
Reviewed-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit f0fbf0ab ("x86: integrate delay functions") converted
delay_tsc() into a random delay generator for 64 bit.  The reason is
that it merged the mostly identical versions of delay_32.c and
delay_64.c.  Though the subtle difference of the result was:

 static void delay_tsc(unsigned long loops)
 {
-	unsigned bclock, now;
+	unsigned long bclock, now;

Now the function uses rdtscl() which returns the lower 32bit of the
TSC. On 32bit that's not problematic as unsigned long is 32bit. On 64
bit this fails when the lower 32bit are close to wrap around when
bclock is read, because the following check

       if ((now - bclock) >= loops)
       	  	break;

evaluated to true on 64bit for e.g. bclock = 0xffffffff and now = 0
because the unsigned long (now - bclock) of these values results in
0xffffffff00000001 which is definitely larger than the loops
value. That explains Tvortkos observation:

"Because I am seeing udelay(500) (_occasionally_) being short, and
 that by delaying for some duration between 0us (yep) and 491us."

Make those variables explicitely u32 again, so this works for both 32
and 64 bit.
Reported-by: NTvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # >= 2.6.27
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull sound fixes from Takashi Iwai:
 "Nothing exciting here: just a few regression fixes for HD-audio and
  ASoC, also the support of missing 32bit compat ioctl for HDSPM."

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hdspm - Provide ioctl_compat
  ALSA: hda/realtek - Apply the coef-setup only to ALC269VB
  ALSA: hda - add quirk to detect CD input on Gigabyte EP45-DS3
  ASoC: neo1973: fix neo1973 wm8753 initialization

The msm git tree moved to

  git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.gitSigned-off-by: NDavid Brown <davidb@codeaurora.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull C6X fix from Mark Salter:
 "Fix for C6X KSTK_EIP and KSTK_ESP macros."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: fix KSTK_EIP and KSTK_ESP macros