ATA devices in SLEEP mode don't respond to any commands.  SRST is
necessary to wake it up.  Till now, when a command is issued to a
device in SLEEP mode, the command times out, which makes EH reset the
device and retry the command after that, causing a long delay.

This patch makes libata track SLEEP state and issue SRST automatically
if a command is about to be issued to a device in SLEEP.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Bruce Allen <ballen@gravity.phys.uwm.edu>
Cc: Andrew Paprocki <andrew@ishiboo.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Some commands need post-processing after successful completion.  This
was done in ata_scsi_qc_complete() till now but this has the following
problems.

* Post-command processing gets executed when qc is completed from EH.
  Some qc's are retried from EH with zero err_mask and thus triggers
  unnecessary/incorrect post-command processing.

* Command post processing doesn't belong to SAT layer.

* Link-wide revalidation was scheduled where device revalidation
  suffices.

This patch moves post-command processing to success completion path of
ata_qc_complete() which is travelled iff the command is going to be
completed without passing through EH and updates post-command
processing such that device-specific action is used.  While at it,
restructure code a bit for readability.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: add SH-S202J to ivb_list[]
  drivers/ide/pci/sc1200.c: fix suspend/resume buglets and warnings
  drivers/ide/pci/generic: fix build for CONFIG_HOTPLUG=n
  hpt366: fix build for CONFIG_HOTPLUG=n
  cy82c693: fix build for CONFIG_HOTPLUG=n

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix fallout from commit b45d9147
("mv643xx_eth: Remove unused register defines")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: Dump filtering supports x86_64 sparsemem
  x86: fix compiler warnings in arch/x86/kernel/early-quirks.c
  x86: fix !SMP compiler warning in arch/x86/kernel/acpi/processor.c
  x86: Fix boot protocol KEEP_SEGMENTS check.
  x86: voyager: fix bogus conversion to per_cpu for boot_cpu_info
  x86: export smp_ops to allow modular build of KVM
  Revert "i386: export i386 smp_call_function_mask() to modules"

(pointer > 0) is deeply weird; (pointer >= 0) is even dumber...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

 #include <scatterlist/scatterlist.h>
is an odd thing to do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

struct device doesn't have ->dma; it's in struct expansion_card where
that struct device is embedded into.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This patch adds the symbol "init_level4_pgt" to the vmcoreinfo data so
that makedumpfile (dump filtering command) supports x86_64 sparsemem 
kernel of linux-2.6.24.

makedumpfile creates a small dumpfile by excluding unnecessary pages for
the analysis. It checks attributes in page structures and distinguishes
necessary pages and unnecessary ones. To check them, makedumpfile gets
the vmcoreinfo data which has the minimum debugging information only for
dump filtering.

For older x86_64 kernel (linux-2.6.23 or before), makedumpfile translates
the virtual address of page structure into physical address by subtracting
PAGE_OFFSET from virtual address, but this translation isn't effective for
linux-2.6.24 sparsemem kernel, because its page structures are in virtual
memmap area. makedumpfile should translate their virtual address by 4-levels
paging and it needs the symbol "init_level4_pgt".
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

fix this warning:

arch/x86/kernel/early-quirks.c:40: warning: nvidia_hpet_check defined but not used
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Fix !CONFIG_SMP warning:

arch/x86/kernel/acpi/processor.c: In function arch_acpi_processor_init_pdc:
arch/x86/kernel/acpi/processor.c:65: warning: unused variable cpu
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

The kernel only ever supports 1 version of the boot protocol
so there is no need to check the boot protocol revision to
see if a feature is supported.

Both x86 and x86_64 support the same boot protocol so we need
to implement the KEEP_SEGMENTS on x86_64 as well.  It isn't
just paravirt bootloaders that could use this functionality.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

There were two problems.  Firstly, someone forgot the struct keyword in
front of cpuinfo_x86, so I take it this wasn't even compile checked.
Secondly, the actual definition has this as a SHARED_ALIGNED, so the
definitions mismatch.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

KVM uses smp_call_function_mask and therefor need smp_ops to be exported.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

This reverts commit 6442eea9.

The patch breaks smp_ops and needs to be reverted. The solution to
allow modular build of KVM is to export smp_ops instead.

Pointed-out-by: James Bottomley

  <jejb> tglx, so write out 100 times "voyager is a useful architecture" ...
  <tglx> yes, Sir
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

* git://git.infradead.org/mtd-2.6:
  [JFFS2] Update MAINTAINERS entry -- the jffs-dev list is dead
  [JFFS2] Prevent return of initialised variable in jffs2_init_acl_post()

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc_spi: Fix mmc-over-spi regression
  mmc: use common byte swap macros
  mmc: fix cid and csd byte order
  at91_mci: Fix bad reference

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC32]: Fix build-warning in io-unit.c
  [SPARC64]: Fix BACKOFF_SPIN on non-SMP.
  [SPARC32]: __inline__ --> inline
  [SPARC64]: __inline__ --> inline

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [CRYPTO] users: Fix up scatterlist conversion errors
  [CRYPTO] tcrypt: Move sg_init_table out of timing loops
  [NETNS]: Fix get_net_ns_by_pid
  [NET]: Marking struct pernet_operations __net_initdata was inappropriate
  [INET] ESP: Must #include <linux/scatterlist.h>
  [TCP] IPV6: fix softnet build breakage

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

Spotted by the Coverity checker, and pointed out by Adrian Bunk.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

Patch 49dce689 changed the sysfs data
structures for SPI in a way which broke the MMC-over-SPI host driver.

This patch fixes that regression by changing the scheme used to keep
from knowingly trying to use a shared bus segment, and updates the
adjacent comments slightly to better explain the issue.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Use the more generic byte swapping macros instead of the socket variants.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

MMC over SPI sends the CID and CSD registers as data, not responses,
which means that the host driver won't do the necessary byte flipping
for us.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

The flags parameter got removed in a previous commit, but some
references were overlooked.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch moves the sg_init_table out of the timing loops for hash
algorithms so that it doesn't impact on the speed test results.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

It can't be just empty, it has to at least branch
back to 'label'.
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

The pid namespace patches changed the semantics of
find_task_by_pid without breaking the compile resulting
in get_net_ns_by_pid doing the wrong thing.

So switch to using the intended find_task_by_vpid.

Combined with Denis' earlier patch to make netlink traffic
fully synchronous the inadvertent race I introduced with
accessing current is actually removed.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

It is not safe to to place struct pernet_operations in a special section.
We need struct pernet_operations to last until we call unregister_pernet_subsys.
Which doesn't happen until module unload.

So marking struct pernet_operations is a disaster for modules in two ways.
- We discard it before we call the exit method it points to.
- Because I keep struct pernet_operations on a linked list discarding
  it for compiled in code removes elements in the middle of a linked
  list and does horrible things for linked insert.

So this looks safe assuming __exit_refok is not discarded
for modules.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes the following compile errors in some configurations:

<--  snip  -->

...
  CC      net/ipv4/esp4.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv4/esp4.c: In function 'esp_output':
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv4/esp4.c:113: error: implicit declaration of function 'sg_init_table'
make[3]: *** [net/ipv4/esp4.o] Error 1
...
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv6/esp6.c: In function 'esp6_output':
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv6/esp6.c:112: error: implicit declaration of function 'sg_init_table'
make[3]: *** [net/ipv6/esp6.o] Error 1


<--  snip  -->
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/tcp_ipv6.c: In function 'tcp_v6_rcv':
net/ipv6/tcp_ipv6.c:1736: error: implicit declaration of function
'get_softnet_dma'
net/ipv6/tcp_ipv6.c:1736: warning: assignment makes pointer from integer
without a cast
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup:
  x86 setup: sizeof() is unsigned, unbreak comparisons
  x86 setup: handle boot loaders which set up the stack incorrectly

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86:
  x86: kill the old i386 and x86_64 directories
  x86: move i386 and x86_64 Kconfig files to x86 directory
  kconfig: small code refactoring in kconfig Makefile
  x86: unification of i386 and x86_64 Kconfig.debug
  x86: move defconfig files for i386 and x86_64 to x86
  x86: move i386 and x86_64 Makefiles to arch/x86

From the report by Nick Warne.
Tested-by: Nick Warne <nick@ukfsn.org>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>