Signed-off-by: NRichard Kuo <rkuo@codeaurora.org>

Commit d065bd81
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e05
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

Port these changes to hexagon.
Signed-off-by: NKautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: NRichard Kuo <rkuo@codeaurora.org>

This function is only used in the same file, and the other similar
functions in this file are also static.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[rkuo@codeaurora.org: adjusted patch to apply to latest]
Signed-off-by: NRichard Kuo <rkuo@codeaurora.org>

"make versioncheck" points out that arch/hexagon/include/asm/spinlock_types.h
does not need to include version.h .
A quick look at the file seems to confirm its findings, so here's a patch that
removes the include.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NRichard Kuo <rkuo@codeaurora.org>

 Use resource_size function on resource object
 instead of explicit computation.

 The semantic patch that makes this change is available
 in scripts/coccinelle/api/resource_size.cocci.

 More information about semantic patching is available at
 http://coccinelle.lip6.fr/Signed-off-by: NThomas Meyer <thomas@m3y3r.de>
Signed-off-by: NRichard Kuo <rkuo@codeaurora.org>

At present reserving the IRLs in the IRQ bitmap in addition to the
dropping of the legacy IRQ pre-allocation prevent IRL IRQs from being
allocated for the x3proto board.

The only reason to permit reservations was to lock down possible hardware
vectors prior to dynamic IRQ scanning, but this doesn't matter much given
that the hardware controller configuration is sorted before we get around
to doing any dynamic IRQ allocation anyways. Beyond that, all of the
tables are __init annotated, so quite a bit more work would need to be
done to support reconfiguring things like IRL controllers on the fly,
much more than would ever make it worth the hassle.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This is a partial revert of

	15ed103a ("edac: Fix spelling errors")
	6997991a ("mips: Fix printk typos in arc/mips")

which change code that doesn't exist any more in edac/mips trees.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

setting CONFIG_IRQ_ALL_CPUS distributes IRQs to CPUs only when
the number of online CPUs equals NR_CPUS.  See commit
280ff974 "sparc64: fix and
optimize irq distribution" for more details.

Using the online mask fixes IRQ-to-CPU distribution on systems
that boot with less than NR_CPUS.
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

This reverts commit 1b788400.

It causes oopses when passed incorrect arguments and has a
design fault using IPIs with interrupts disabled.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
---

--
Signed-off-by: NAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

There is no point having the NET dependency on the select target, as it
forces all users to depend on NET to tell they support BPF_JIT.  Move
the config option to the bottom of the file - this could be a nice place
also for future "selectable" config symbols.

Fix up all users to drop the dependency on NET now that it is not
required to supress warnings for non-NET builds.
Reported-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Acked-by: NDavid Miller <davem@davemloft.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

relocs was not cleaned up when "make clean" is issued. This
patch fixes the issue.
Signed-off-by: NJarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1337622684-6834-1-git-send-email-jarkko.sakkinen@intel.comSigned-off-by: NH. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org> v3.4

UML does no longer need CONFIG_IRQ_RELEASE_METHOD.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>

UML does no longer need irq_chip->release().
Signed-off-by: NRichard Weinberger <richard@nod.at>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>

Instead of using chip->release() we can achieve the same
using a simple wrapper for free_irq().
We have already um_request_irq(), so um_free_irq() is the perfect
counterpart.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>

The current __swp_type() function uses a too small bitshift.
Using more than one swap files causes bad pages because
the type bits clash with other page flags.

CC: stable@kernel.org
Analyzed-by: NHugh Dickins <hughd@google.com>
Signed-off-by: NRichard Weinberger <richard@nod.at>

UML uses the _PAGE_NEWPAGE flag to mark pages which are not jet
installed on the host side using mmap().
pte_same() has to ignore this flag, otherwise unuse_pte_range()
is unable to unuse the page because two identical
page tables entries with different _PAGE_NEWPAGE flags would not
match and swapoff() would never return.

CC: stable@kernel.org
Analyzed-by: NHugh Dickins <hughd@google.com>
Signed-off-by: NRichard Weinberger <richard@nod.at>

In case we encounter a bad operation in do_ops() something is really
broken and it's better to BUG().
Signed-off-by: NRichard Weinberger <richard@nod.at>

Signed-off-by: NRichard Weinberger <richard@nod.at>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

we can't just find oldmask once; if there are multiple signals
and we loop building sigframes for those, ->saved_mask will be
definitely wrong for all but the first one.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Fix this behaviour:

----------------
| NMI testsuite:
--------------------
  remote IPI:
  ok  |

   local IPI:
  ok  |

Revealed due to a new modification to printk().
Signed-off-by: NSasha Levin <levinsasha928@gmail.com>
Link: http://lkml.kernel.org/r/1336492573-17530-3-git-send-email-levinsasha928@gmail.comSigned-off-by: NH. Peter Anvin <hpa@zytor.com>

Both of these boards are still using the PIO API sans PCI, and will need
to be carefully converted. As conversion is out of scope for this merge
window, simply make sure NO_IOPORT doesn't get accidentally set for
these, joining a long list of other crap platforms.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

HARDIRQS_SW_RESEND and GENERIC_IRQ_PROBE are already defined as config
switches in the core Kconfig file. Select them instead of defining
them in ARM.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Everything is using sparseirq these days, so we have no need to
arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation
likewise has no meaning for us, so that's killed off too. We now depend
on nr_irqs expansion by the generic hardirq layer instead.

It's also worth noting that the majority of boards had completely bogus
values for their nr_irqs relative to their CPU and configurations, so
this ends up correcting behaviour for quite a few platforms.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Change calgary_parse_options() to call kstrtoul() instead of
calling obsoleted simple_strtoul().
Signed-off-by: NShuah Khan <shuahkhan@gmail.com>
Acked-by: NMuli Ben-Yehuda <muli@cs.technion.ac.il>
Cc: jdmason@kudzu.us
Link: http://lkml.kernel.org/r/1337556268.3126.5.camel@lorien2Signed-off-by: NIngo Molnar <mingo@kernel.org>

Signed-off-by: NSteven Miao <realmz6@gmail.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Disable IRQ when reading MMR rcv_data8 and rcv_data16.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Add a temporary anomaly 0501001 for data loss in MMR reading if interrupted.
Add work around for bfin serial driver as well.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Rename the DDR controller macro from DDR0 to DMC0 to avoid confustion for
bf60x.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>