]> err.no Git - linux-2.6/log
linux-2.6
16 years agox86: fixup more paravirt fallout
Ingo Molnar [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: fixup more paravirt fallout

Use a common irq_return entry point for all the iret places, which
need the paravirt INTERRUPT return wrapper.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agobrk: document randomize_va_space and CONFIG_COMPAT_BRK (was Re:
Jiri Kosina [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
brk: document randomize_va_space and CONFIG_COMPAT_BRK (was Re:

Document randomize_va_space and CONFIG_COMPAT_BRK.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix sparse warnings in acpi/bus.c
Harvey Harrison [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: fix sparse warnings in acpi/bus.c

Add function definition and extern variables to asm-x86/acpi.h.

All of these are used in bus.c in ifdef(CONFIG_X86) sections, so are
only added to the x86 include headers.  boot.c already includes acpi.h
so no changes are needed there.

Fixes the following:
arch/x86/kernel/acpi/boot.c:83:4: warning: symbol 'acpi_sci_flags' was not declared. Should it be static?
arch/x86/kernel/acpi/boot.c:84:5: warning: symbol 'acpi_sci_override_gsi' was not declared. Should it be static?
arch/x86/kernel/acpi/boot.c:421:13: warning: symbol 'acpi_pic_sci_set_trigger' was not declared. Should it be static?

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix sparse warning in topology.c
Harvey Harrison [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: fix sparse warning in topology.c

arch/x86/kernel/topology.c:56:2: warning: returning void-valued expression

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: sparse warnings in pageattr.c
Harvey Harrison [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: sparse warnings in pageattr.c

Adjust the definition of lookup_address to take an unsigned long
level argument.  Adjust callers in xen/mmu.c that pass in a
dummy variable.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: sparse warning in therm_throt.c
Harvey Harrison [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: sparse warning in therm_throt.c

arch/x86/kernel/cpu/mcheck/therm_throt.c:121:2: warning: returning void-valued expression

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix sparse warning in xen/time.c
Harvey Harrison [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: fix sparse warning in xen/time.c

Use xen_khz to denote xen_specific clock speed.  Avoid shadowing
cpu_khz.

arch/x86/xen/time.c:220:6: warning: symbol 'cpu_khz' shadows an earlier one
include/asm/tsc.h:17:21: originally declared here

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: fix typo in printk in mfgpt_timer_setup
Arnd Hannemann [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: fix typo in printk in mfgpt_timer_setup

Signed-off-by: Arnd Hannemann <hannemann@i4.informatik.rwth-aachen.de>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: make sure the right MFGPT timer fired the timer tick
Jordan Crouse [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: make sure the right MFGPT timer fired the timer tick

Each AMD Geode MFGPT timer interrupt output is paired with another
timer; esentially the interrupt goes if either timer fires.  This
is okay, but the handlers need to be aware of this.  Make sure in
the timer tick handler that our timer really did expire.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: fix a potential race when disabling a timer
Andres Salomon [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: fix a potential race when disabling a timer

We *really* don't want to be reading MFGPTx_SETUP and writing back those
values.  What we want to be doing is clearing CMP1 and CMP2 unconditionally;
otherwise, we have races where CMP1 and/or CMP2 fire after we've read
MFGPTx_SETUP.  They can also fire between when we've written ~CNTEN to
the register, and when the new register values get copied to the timer's
version of the register.  By clearing both fields, we're okay.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timers
Jordan Crouse [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timers

There isn't much value to always detecting the MFGPT timers on
Geode platforms; detection is only needed when something wants
to use the timers.  Move the detection code so that it gets
called the first time a timer is allocated.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: make mfgpt_timer_setup available outside of mfgpt_32.c
Andres Salomon [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: make mfgpt_timer_setup available outside of mfgpt_32.c

We need to be called from elsewhere, and this gets some #ifdefs out
of the .c file.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: replace 'flags' field with 'avail' bit
Andres Salomon [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: replace 'flags' field with 'avail' bit

Drop F_AVAIL and the 'flags' field, replacing with an 'avail' bit.  This
looks more understandable to me.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: drop module owner usage from MFGPT API
Andres Salomon [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: drop module owner usage from MFGPT API

We had planned to use the 'owner' field for allowing re-allocation of
MFGPTs; however, doing it by module owner name isn't flexible enough.  So,
drop this for now.  If it turns out that we need timers in modules, we'll
need to come up with a scheme that matches the write-once fields of the
MFGPTx_SETUP register, and drops ponies from the sky.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE fix MFGPT input clock value
Willy Tarreau [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE fix MFGPT input clock value

The GEODE MFGPT code assumed that 32kHz was 32000 Hz while the boards
run on a 32.768 kHz digital watch crystal. In practise, it will not
change the timer's frequency as the skew was only 2.4%, but it
should provide more accurate intervals.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: GEODE: MFGPT: Minor cleanups
Andres Salomon [Sat, 9 Feb 2008 22:24:08 +0000 (23:24 +0100)]
x86: GEODE: MFGPT: Minor cleanups

- uninline timer functions; the compiler knows better than we do
  whether or not to inline these.
- mfgpt_start_timer() had an unused 'clock' argument, drop it.

From both Jordan and myself.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Sat, 9 Feb 2008 19:15:23 +0000 (11:15 -0800)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] dynamic page tables.
  [S390] Add four level page tables for CONFIG_64BIT=y.
  [S390] 1K/2K page table pages.
  [S390] Remove a.out header file.
  [S390] sclp_vt220: Fix vt220 initialization
  [S390] qdio: avoid hang when establishing qdio queues
  [S390] VMEM_MAX_PHYS overflow on 31 bit.
  [S390] zcrypt: Do not start ap poll thread per default
  [S390] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.
  [S390] Wire up new timerfd syscalls.
  [S390] Update default configuration.

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
Linus Torvalds [Sat, 9 Feb 2008 19:14:20 +0000 (11:14 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  Kbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without-digit>
  ide: introduce HAVE_IDE
  kbuild: silence CHK/UPD messages according to $(quiet)
  scsi: fix makefile for aic7(3*x)
  kbuild/modpost: Use warn() for announcing section mismatches
  Add binoffset to gitignore
  kbuild/modpost: improve warnings if symbol is unknown

16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Sat, 9 Feb 2008 19:12:31 +0000 (11:12 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  Merge branches 'release' and 'buildfix' into release
  acer-wmi - Add documentation
  sonypi - Move sonypi.txt to Documentation/laptops
  sony-laptop - Move sony-laptop.txt to Documentation/laptops
  thinkpad-acpi - Move thinkpad-acpi.txt to Documentation/laptops
  Documentation - Create laptops sub-directory
  ACPI: thermal: buildfix for CONFIG_THERMAL=n
  cpuidle: build fix for non-x86
  acer-wmi: Fix backlight on AMW0 (V1) laptops
  tc1100-wmi: Mark as experimental
  ACPI: SBS: Host controller must initialize before SBS.

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Sat, 9 Feb 2008 19:12:15 +0000 (11:12 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc: extend ricoh_mmc to support Ricoh RL5c476
  at91_mci: use generic GPIO calls
  sdhci: add num index for multi controllers case
  MAINTAINERS: remove non-existant URLs
  mmc: remove sdhci and mmc_spi experimental markers
  mmc: Handle suspend/resume in Ricoh MMC disabler

16 years agoMerge git://git.infradead.org/mtd-2.6
Linus Torvalds [Sat, 9 Feb 2008 19:11:45 +0000 (11:11 -0800)]
Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6:
  [MTD] [NAND] cs553x_nand: command line partitioning support

16 years agomemstick: initial commit for Sony MemoryStick support
Alex Dubov [Sat, 9 Feb 2008 18:20:54 +0000 (10:20 -0800)]
memstick: initial commit for Sony MemoryStick support

Sony MemoryStick cards are used in many products manufactured by Sony.
They are available both as storage and as IO expansion cards.  Currently,
only MemoryStick Pro storage cards are supported via TI FlashMedia
MemoryStick interface.

[mboton@gmail.com: biuld fix]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Miguel Boton <mboton@gmail.co>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agom68knommu: add pgtable_t
Martin Schwidefsky [Sat, 9 Feb 2008 11:11:21 +0000 (03:11 -0800)]
m68knommu: add pgtable_t

  CC      init/main.o
In file included from include2/asm/uaccess.h:8,
                 from include/linux/poll.h:13,
                 from include/linux/rtc.h:113,
                 from include/linux/efi.h:19,
                 from linux-2.6/init/main.c:43:
include/linux/mm.h:1151:
error: expected declaration specifiers or '...' before 'pgtable_t'

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reported-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoAdd pgtable_t to remaining nommu architectures
Martin Schwidefsky [Sat, 9 Feb 2008 11:13:00 +0000 (03:13 -0800)]
Add pgtable_t to remaining nommu architectures

The pte_fn_t in include/linux/mm.h make it necessary for all architectures
to define a pgtable_t type, even those that do not have an mmu.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoub: fix up the conversion to sg_init_table()
Pete Zaitcev [Sat, 9 Feb 2008 08:10:17 +0000 (00:10 -0800)]
ub: fix up the conversion to sg_init_table()

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: "Oliver Pinter" <oliver.pntr@gmail.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix up kerneldoc in fs/ioctl.c a little bit
Christoph Hellwig [Sat, 9 Feb 2008 08:10:16 +0000 (00:10 -0800)]
fix up kerneldoc in fs/ioctl.c a little bit

 - remove non-standard in/out markers
 - use tabs for formatting

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemcontrol: add vm_match_cgroup()
David Rientjes [Sat, 9 Feb 2008 08:10:15 +0000 (00:10 -0800)]
memcontrol: add vm_match_cgroup()

mm_cgroup() is exclusively used to test whether an mm's mem_cgroup pointer
is pointing to a specific cgroup.  Instead of returning the pointer, we can
just do the test itself in a new macro:

vm_match_cgroup(mm, cgroup)

returns non-zero if the mm's mem_cgroup points to cgroup.  Otherwise it
returns zero.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoUML: fix hostfs build
Jiri Kosina [Sat, 9 Feb 2008 08:10:14 +0000 (00:10 -0800)]
UML: fix hostfs build

/home/bunk/linux/kernel-2.6/git/linux-2.6/fs/hostfs/hostfs_kern.c: In function 'hostfs_show_options':
/home/bunk/linux/kernel-2.6/git/linux-2.6/fs/hostfs/hostfs_kern.c:328: error: dereferencing pointer to incomplete type

We need to include mount.h to get vfsmount.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Reported-by: Adrian Bunk <bunk@stusta.de>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix compile error on nommu for is_swap_pte
Matt Mackall [Sat, 9 Feb 2008 08:10:12 +0000 (00:10 -0800)]
Fix compile error on nommu for is_swap_pte

  CC      mm/vmscan.o
In file included from
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/vmscan.c:44:
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h: In function 'is_swap_pte':
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h:48: error: implicit declaration of function 'pte_none'
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h:48: error: implicit declaration of function 'pte_present'

Does it ever make sense to ask "is this pte a swap entry?" on a machine
with no MMU?  Presumably this also means it has no ptes too, right?  In
which case, it's better to comment the whole function out.  Then when
someone tries to ask the above meaningless question, they get a compile
error rather than a meaningless answer.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Reported-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago[S390] dynamic page tables.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:37 +0000 (18:24 +0100)]
[S390] dynamic page tables.

Add support for different number of page table levels dependent
on the highest address used for a process. This will cause a 31 bit
process to use a two level page table instead of the four level page
table that is the default after the pud has been introduced. Likewise
a normal 64 bit process will use three levels instead of four. Only
if a process runs out of the 4 tera bytes which can be addressed with
a three level page table the fourth level is dynamically added. Then
the process can use up to 8 peta byte.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Add four level page tables for CONFIG_64BIT=y.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:36 +0000 (18:24 +0100)]
[S390] Add four level page tables for CONFIG_64BIT=y.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] 1K/2K page table pages.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:35 +0000 (18:24 +0100)]
[S390] 1K/2K page table pages.

This patch implements 1K/2K page table pages for s390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Remove a.out header file.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:34 +0000 (18:24 +0100)]
[S390] Remove a.out header file.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] sclp_vt220: Fix vt220 initialization
Christian Borntraeger [Sat, 9 Feb 2008 17:24:33 +0000 (18:24 +0100)]
[S390] sclp_vt220: Fix vt220 initialization

There are two problems in the vt220 intialization:

o Currently the vt220 console looses early printk events until the
  the vt220 tty is registered.
o console should work if tty_register fails

sclp_vt220_con_init calls __sclp_vt220_init and register_console.
It does not register the driver with the sclp core code via
sclp_register. That results in an sclp_send_mask=0. Therefore,
__sclp_vt220_emit will reject buffers with EIO. Unfortunately
register_console will cause the printk buffer to be sent to the
console and, therefore, every early message gets dropped. The
sclp_send_mask is set later during boot, when sclp_vt220_tty_init
calls sclp_register.

The solution is to move the sclp_register call from sclp_vt220_tty_init
to __sclp_vt220_init. This makes sure that the console is properly
registered with the sclp subsystem before the first log buffer messages
are passed to the vt220 console.

We also adopt the cleanup on error to keep the console alive if
tty_register fails.

Thanks to Peter Oberparleiter and Heiko Carstens for review and ideas
for improvement.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] qdio: avoid hang when establishing qdio queues
Ursula Braun [Sat, 9 Feb 2008 17:24:32 +0000 (18:24 +0100)]
[S390] qdio: avoid hang when establishing qdio queues

If qdio establish runs in parallel with a channel error,
ccw_device_start_timeout may not trigger the qdio_timeout_handler.
In this case neither QDIO_IRQ_STATE_ESTABLISHED nor
QDIO_IRQ_STATE_ERR is reached and the following wait_event hangs
forever.
Solution: do not make use of the timeout option with
ccw_device_start, but add a timeout to the following wait_event.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] VMEM_MAX_PHYS overflow on 31 bit.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:31 +0000 (18:24 +0100)]
[S390] VMEM_MAX_PHYS overflow on 31 bit.

With the new space saving spinlock_t and a non-debug configuration
the struct page only has 32 bytes for 31 bit s390. The causes an
overflow in the calculation of VMEM_MAX_PHYS which renders the
kernel unbootable.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] zcrypt: Do not start ap poll thread per default
Felix Beck [Sat, 9 Feb 2008 17:24:30 +0000 (18:24 +0100)]
[S390] zcrypt: Do not start ap poll thread per default

Do not start ap poll thread per default to increase perfomance with
z/VM.

Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:29 +0000 (18:24 +0100)]
[S390] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.

The black art of inline assemblies.. The new __ffs_word_loop/
__ffz_word_loop inline assemblies need an early clobber for the
two input/output variables.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Wire up new timerfd syscalls.
Heiko Carstens [Sat, 9 Feb 2008 17:24:28 +0000 (18:24 +0100)]
[S390] Wire up new timerfd syscalls.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Update default configuration.
Martin Schwidefsky [Sat, 9 Feb 2008 17:24:27 +0000 (18:24 +0100)]
[S390] Update default configuration.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years agoKbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without...
Michal Sojka [Thu, 7 Feb 2008 16:18:51 +0000 (17:18 +0100)]
Kbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without-digit>

If CONIFIG_LOCALVERSION is set for example to -loop, the following error
message was generated.

dpkg-deb - error: Debian revision (`loop') doesn't contain any digits
dpkg-deb: 1 errors in control file

The patch solves this by adding a numeric revision to package version.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agoide: introduce HAVE_IDE
Sam Ravnborg [Sat, 9 Feb 2008 09:46:40 +0000 (10:46 +0100)]
ide: introduce HAVE_IDE

To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.

This is a step towards introducing drivers/Kconfig for arm.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agokbuild: silence CHK/UPD messages according to $(quiet)
Mike Frysinger [Fri, 8 Feb 2008 05:05:52 +0000 (00:05 -0500)]
kbuild: silence CHK/UPD messages according to $(quiet)

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agoscsi: fix makefile for aic7(3*x)
Sam Ravnborg [Wed, 6 Feb 2008 22:05:33 +0000 (23:05 +0100)]
scsi: fix makefile for aic7(3*x)

Fix bug introduced by my latest fix to the aic7xxx Makefile.
Test build on x86 32 and 64 bit.
Without and with -j (parallel build)
Building firmaware is br0ken with O=... but this
is unrelated to this bug-fix.

Tested-by: Adrian Bunk <bunk@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agokbuild/modpost: Use warn() for announcing section mismatches
Geert Uytterhoeven [Tue, 5 Feb 2008 10:38:49 +0000 (11:38 +0100)]
kbuild/modpost: Use warn() for announcing section mismatches

modpost: Use warn() for announcing section mismatches, for easy grepping for
warnings in build logs.

Also change an existing call from fprintf() to warn() while we're at it.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agoAdd binoffset to gitignore
Uwe Kleine-König [Tue, 5 Feb 2008 10:44:52 +0000 (11:44 +0100)]
Add binoffset to gitignore

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agokbuild/modpost: improve warnings if symbol is unknown
Sam Ravnborg [Wed, 6 Feb 2008 20:51:18 +0000 (21:51 +0100)]
kbuild/modpost: improve warnings if symbol is unknown

If we cannot determine the symbol then print
(unknown) to hint the reader that we failed to
find the symbol.
This happens with REL relocation records
in arm object files.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agoMerge branches 'release', 'wmi' and 'laptop-docs' into release
Len Brown [Sat, 9 Feb 2008 09:32:55 +0000 (04:32 -0500)]
Merge branches 'release', 'wmi' and 'laptop-docs' into release

16 years agoMerge branches 'release' and 'bugzilla-9910' into release
Len Brown [Sat, 9 Feb 2008 09:32:47 +0000 (04:32 -0500)]
Merge branches 'release' and 'bugzilla-9910' into release

16 years agoMerge branches 'release' and 'buildfix' into release
Len Brown [Sat, 9 Feb 2008 09:32:40 +0000 (04:32 -0500)]
Merge branches 'release' and 'buildfix' into release

16 years agoacer-wmi - Add documentation
Carlos Corbacho [Sat, 9 Feb 2008 01:32:25 +0000 (01:32 +0000)]
acer-wmi - Add documentation

Add some initial documentation detailing what acer-wmi is, and how to use
it. Update the Kconfig entry with a reference to the documentation.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agosonypi - Move sonypi.txt to Documentation/laptops
Carlos Corbacho [Sat, 9 Feb 2008 01:32:19 +0000 (01:32 +0000)]
sonypi - Move sonypi.txt to Documentation/laptops

Also update references to sonypi.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agosony-laptop - Move sony-laptop.txt to Documentation/laptops
Carlos Corbacho [Sat, 9 Feb 2008 01:32:14 +0000 (01:32 +0000)]
sony-laptop - Move sony-laptop.txt to Documentation/laptops

Also update references to sony-laptop.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agothinkpad-acpi - Move thinkpad-acpi.txt to Documentation/laptops
Carlos Corbacho [Sat, 9 Feb 2008 01:32:09 +0000 (01:32 +0000)]
thinkpad-acpi - Move thinkpad-acpi.txt to Documentation/laptops

Also update references to thinkpad-acpi.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoDocumentation - Create laptops sub-directory
Carlos Corbacho [Sat, 9 Feb 2008 01:32:03 +0000 (01:32 +0000)]
Documentation - Create laptops sub-directory

There are currently various laptop drivers floating about with no central
place for their documentation, which is currently scattered around the top
level Documentation/ directory.

So, as a first step, lets create a Documentation sub-directory, and update
the relevant index files. The work of then moving the existing laptop
driver related documentation will then be handled later.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoACPI: thermal: buildfix for CONFIG_THERMAL=n
Len Brown [Sat, 9 Feb 2008 09:01:48 +0000 (04:01 -0500)]
ACPI: thermal: buildfix for CONFIG_THERMAL=n

This fixes the build, but acpi_fan_add() still needs
to be updated to handle thermal_cooling_device_register()
returning NULL as a non-fatal condition.

Signed-off-by: Len Brown <len.brown@intel.com>
16 years agocpuidle: build fix for non-x86
Venki Pallipadi [Sat, 9 Feb 2008 01:05:44 +0000 (17:05 -0800)]
cpuidle: build fix for non-x86

The last posted version of this patch gave compile error
on IA64. So, here goes yet another rewrite of the patch.

Convert cpu_idle_wait() to cpuidle_kick_cpus() which is
SMP-only, and gives error on non supported CPU.

Changes from last patch sent by Kevin:
Moved the definition of kick_cpus back to cpuidle.c from cpuidle.h:
* Having it in .h gives #error on archs which includes the header file without
  actually having CPU_IDLE configured. To make it work in .h, we need one more
  #ifdef around that code which makes it messy.
* Also, the function is only called from one file. So, it can be in declared
  statically in .c rather than making it available to everyone who includes
  the .h file.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoacer-wmi: Fix backlight on AMW0 (V1) laptops
Carlos Corbacho [Fri, 8 Feb 2008 23:51:49 +0000 (23:51 +0000)]
acer-wmi: Fix backlight on AMW0 (V1) laptops

There is some leftover cruft from the old quirk infrastructure that causes
us to be unable to set the backlight on older laptops.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agotc1100-wmi: Mark as experimental
Carlos Corbacho [Fri, 8 Feb 2008 23:51:43 +0000 (23:51 +0000)]
tc1100-wmi: Mark as experimental

tc1100-wmi has not undergone as much testing as acer-wmi, so it certainly
should be marked as experimental as well until we get more user feedback.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoACPI: SBS: Host controller must initialize before SBS.
Alexey Starikovskiy [Sat, 9 Feb 2008 08:22:13 +0000 (03:22 -0500)]
ACPI: SBS: Host controller must initialize before SBS.

In static case sbshc must be compiled ahead of sbs, so that
hc is configured first.

http://bugzilla.kernel.org/show_bug.cgi?id=9910

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years ago[MTD] [NAND] cs553x_nand: command line partitioning support
Mart Raudsepp [Sat, 9 Feb 2008 08:16:36 +0000 (08:16 +0000)]
[MTD] [NAND] cs553x_nand: command line partitioning support

Implements kernel command line partitioning support for the CS5535/CS5536 chipsets driver.

For that the following is done:

* cs553x_cleanup(): try the cleanup for all chip selects to not leak memory
* Assign a unique name for each chip select to be separately addressable in the command line mtd-id portion(s)
* Use the already defined PIN_OPT_IDE constant where appropriate for readability
* Include command line partitioning support when CONFIG_MTD_PARTS is set

Signed-off-by: Mart Raudsepp <mart.raudsepp@artecdesign.ee>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
16 years agomm: special mapping nopage
Nick Piggin [Sat, 9 Feb 2008 00:15:19 +0000 (01:15 +0100)]
mm: special mapping nopage

Convert special mapping install from nopage to fault.

Because the "vm_file" is NULL for the special mapping, the generic VM
code has messed up "vm_pgoff" thinking that it's an anonymous mapping
and the offset does't matter.  For that reason, we need to undo the
vm_pgoff offset that got added into vmf->pgoff.

[ We _really_ should clean that up - either by making this whole special
  mapping code just use a real file entry rather than that ugly array of
  "struct page" pointers, or by just making the VM code realize that
  even if vm_file is NULL it may not be a regular anonymous mmap.
 - Linus ]

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Fri, 8 Feb 2008 23:40:28 +0000 (15:40 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix large MCA bootmem allocation
  [IA64] Simplify cpu_idle_wait
  [IA64] Synchronize RBS on PTRACE_ATTACH
  [IA64] Synchronize kernel RSE to user-space and back
  [IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME
  [IA64] Wire up timerfd_{create,settime,gettime} syscalls

16 years agox86: fix pgtable_t build breakage
Ingo Molnar [Fri, 8 Feb 2008 23:15:06 +0000 (00:15 +0100)]
x86: fix pgtable_t build breakage

Commit 2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4 ("CONFIG_HIGHPTE vs.
sub-page page tables") caused some build breakage due to pgtable_t only
getting declared in the CONFIG_X86_PAE case.

Move the declaration outside the PAE section.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Fri, 8 Feb 2008 23:34:26 +0000 (15:34 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Remove unused struct ib_device.flags member
  IB/core: Add IP checksum offload support
  IPoIB: Add send gather support
  IPoIB: Add high DMA feature flag
  IB/mlx4: Use multiple WQ blocks to post smaller send WQEs
  mlx4_core: Clean up struct mlx4_buf
  mlx4_core: For 64-bit systems, vmap() kernel queue buffers
  IB/mlx4: Consolidate code to get an entry from a struct mlx4_buf

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...
Linus Torvalds [Fri, 8 Feb 2008 23:33:45 +0000 (15:33 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (24 commits)
  [Blackfin] arch: import defines for BF547 -- it is just like the BF548, but no CAN
  [Blackfin] arch: fix build fails only include header files when enabled
  [Blackfin] arch: declare default INSTALL_PATH for Blackfin ports
  [Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support
  [Blackfin] arch: Enable UART2 and UART3 for bf548
  [Blackfin] arch: Enable NET2272 on BF561-EZkit - remove request_mem_region
  [Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show complete info
  [Blackfin] arch: remove duplicated definitions of the line discipline numbers N_* in asm-blackfin/termios.h
  [Blackfin] arch: fix building with mtd uclinux by putting the mtd_phys option into the function it actually gets used in
  [Blackfin] arch: simpler header and update dates
  [Blackfin] arch: move the init sections to the end of memory
  [Blackfin] arch: change the trace buffer control start/stop logic in the exception handlers
  [Blackfin] arch: fix typo in printk message
  [Blackfin] arch: this is an ezkit, not a stamp, so fixup the init function name
  [Blackfin] arch: add slightly better help text for CPLB_INFO
  [Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
  [Blackfin] arch: Fix header file information
  [Blackfin] arch: Add Support for ISP1362
  [Blackfin] arch: add support for cmdline partitioning to the BF533-STAMP flash map driver and enable it as a module by default
  [Blackfin] arch: hook up set_irq_wake in Blackfin's irq code
  ...

16 years agoDCA: convert struct class_device to struct device.
Kay Sievers [Fri, 8 Feb 2008 23:00:49 +0000 (15:00 -0800)]
DCA: convert struct class_device to struct device.

Thanks to Kay for keeping us honest.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agox25_asy: Fix ref count rule violation
Alan Cox [Fri, 8 Feb 2008 23:00:48 +0000 (15:00 -0800)]
x25_asy: Fix ref count rule violation

x25_asy does not take an ldisc reference before calling the flush method.
Fix it to use the helper function we provide.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agolib/scatterlist.o needed by a module only - link it in unconditionally
Guennadi Liakhovetski [Fri, 8 Feb 2008 23:00:47 +0000 (15:00 -0800)]
lib/scatterlist.o needed by a module only - link it in unconditionally

lib/scatterlist.c is needed by drivers/media/video/videobuf-dma-sg.c, and
we would like to be able to use the latter without PCI too, for example, on
PXA270 ARM CPU.  It is then possible to create a configuration with
CONFIG_BLOCK=n, where only module code will need scatterlist.c.  Therefore
it must be in obj-y.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix xtensa timerfd breakage
Adrian Bunk [Fri, 8 Feb 2008 23:00:46 +0000 (15:00 -0800)]
fix xtensa timerfd breakage

In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/xtensa/kernel/syscall.c:39:
include2/asm/unistd.h:681: error: 'sys_timerfd' undeclared here (not in a function)

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Christian Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix FRV cmpxchg_local
Mathieu Desnoyers [Fri, 8 Feb 2008 23:00:45 +0000 (15:00 -0800)]
Fix FRV cmpxchg_local

Fix the FRV cmpxchg_local by breaking the following header dependency loop :

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h
  -> asm-frv/system.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

and

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

In order to fix this :
- Move the atomic_test_and_ *_mask inlines from asm-frv/atomic.h (why are they
  there at all anyway ? They are not touching atomic_t variables!) to
  asm-frv/bitops.h.

Also fix a build issue with cmpxchg : it does not cast to (unsigned long *)
like other architectures, to deal with it in the cmpxchg_local macro.

FRV builds fine with this patch.

Thanks to Adrian Bunk <bunk@kernel.org> for spotting this bug.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agorevert "proc: fix the threaded proc self"
Andrew Morton [Fri, 8 Feb 2008 23:00:43 +0000 (15:00 -0800)]
revert "proc: fix the threaded proc self"

Revert commit c6caeb7c4544608e8ae62731334661fc396c7f85 ("proc: fix the
threaded /proc/self"), since Eric says "The patch really is wrong.
There is at least one corner case in procps that cares."

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Guillaume Chazarain" <guichaz@yahoo.fr>
Cc: "Pavel Emelyanov" <xemul@openvz.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoIB/core: Remove unused struct ib_device.flags member
Roland Dreier [Fri, 8 Feb 2008 22:47:26 +0000 (14:47 -0800)]
IB/core: Remove unused struct ib_device.flags member

Avoid confusion about what it might mean, since it's never initialized.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/core: Add IP checksum offload support
Eli Cohen [Wed, 30 Jan 2008 16:30:57 +0000 (18:30 +0200)]
IB/core: Add IP checksum offload support

Add a device capability to show when it can handle checksum offload.
Also add a send flag for inserting checksums and a csum_ok field to
the completion record.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIPoIB: Add send gather support
Eli Cohen [Wed, 30 Jan 2008 16:30:53 +0000 (18:30 +0200)]
IPoIB: Add send gather support

This patch acts as a preparation for using checksum offload for IB
devices capable of inserting/verifying checksum in IP packets.  The
patch does not actaully turn on NETIF_F_SG - we defer that to the
patches adding checksum offload capabilities.

We only add support for send gathers for datagram mode, since existing
HW does not support checksum offload on connected QPs.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIPoIB: Add high DMA feature flag
Eli Cohen [Wed, 30 Jan 2008 16:30:46 +0000 (18:30 +0200)]
IPoIB: Add high DMA feature flag

All current InfiniBand devices can handle all DMA addresses, and it's
hard to imagine anyone would be silly enough to build a new device
that couldn't.  Therefore, enable the NETIF_F_HIGHDMA feature for IPoIB.

This has no effect for no, but is needed when we enable gather/scatter
support and checksum stateless offloads.

Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mlx4: Use multiple WQ blocks to post smaller send WQEs
Jack Morgenstein [Mon, 28 Jan 2008 08:40:59 +0000 (10:40 +0200)]
IB/mlx4: Use multiple WQ blocks to post smaller send WQEs

ConnectX HCA supports shrinking WQEs, so that a single work request
can be made of multiple units of wqe_shift.  This way, WRs can differ
in size, and do not have to be a power of 2 in size, saving memory and
speeding up send WR posting.  Unfortunately, if we do this then the
wqe_index field in CQEs can't be used to look up the WR ID anymore, so
our implementation does this only if selective signaling is off.

Further, on 32-bit platforms, we can't use vmap() to make the QP
buffer virtually contigious. Thus we have to use constant-sized WRs to
make sure a WR is always fully within a single page-sized chunk.

Finally, we use WRs with the NOP opcode to avoid wrapping around the
queue buffer in the middle of posting a WR, and we set the
NoErrorCompletion bit to avoid getting completions with error for NOP
WRs.  However, NEC is only supported starting with firmware 2.2.232,
so we use constant-sized WRs for older firmware.  And, since MLX QPs
only support SEND, we use constant-sized WRs in this case.

When stamping during NOP posting, do stamping following setting of the
NOP WQE valid bit.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years ago[IA64] Fix large MCA bootmem allocation
Russ Anderson [Tue, 5 Feb 2008 23:12:32 +0000 (17:12 -0600)]
[IA64] Fix large MCA bootmem allocation

The MCA code allocates bootmem memory for NR_CPUS, regardless
of how many cpus the system actually has.  This change allocates
memory only for cpus that actually exist.

On my test system with NR_CPUS = 1024, reserved memory was reduced by 130944k.

Before: Memory: 27886976k/28111168k available (8282k code, 242304k reserved, 5928k data, 1792k init)
After:  Memory: 28017920k/28111168k available (8282k code, 111360k reserved, 5928k data, 1792k init)

Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Simplify cpu_idle_wait
Tony Luck [Fri, 8 Feb 2008 19:53:09 +0000 (11:53 -0800)]
[IA64] Simplify cpu_idle_wait

This is just Venki's patch[*] for x86 ported to ia64.

* http://marc.info/?l=linux-kernel&m=120249201318159&w=2

Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Synchronize RBS on PTRACE_ATTACH
Petr Tesarik [Wed, 12 Dec 2007 14:24:25 +0000 (15:24 +0100)]
[IA64] Synchronize RBS on PTRACE_ATTACH

When attaching to a stopped process, the RSE must be explicitly
synced to user-space, so the debugger can read the correct values.

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
CC: Roland McGrath <roland@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Synchronize kernel RSE to user-space and back
Petr Tesarik [Wed, 12 Dec 2007 14:23:34 +0000 (15:23 +0100)]
[IA64] Synchronize kernel RSE to user-space and back

This is base kernel patch for ptrace RSE bug. It's basically a backport
from the utrace RSE patch I sent out several weeks ago. please review.

when a thread is stopped (ptraced), debugger might change thread's user
stack (change memory directly), and we must avoid the RSE stored in
kernel to override user stack (user space's RSE is newer than kernel's
in the case). To workaround the issue, we copy kernel RSE to user RSE
before the task is stopped, so user RSE has updated data.  we then copy
user RSE to kernel after the task is resummed from traced stop and
kernel will use the newer RSE to return to user.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
CC: Roland McGrath <roland@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME
Petr Tesarik [Wed, 12 Dec 2007 14:21:16 +0000 (15:21 +0100)]
[IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME

Since the RSE synchronization will need a TIF_ flag, but all

work-to-be-done bits are already used, so we have to multiplex
TIF_NOTIFY_RESUME again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Wire up timerfd_{create,settime,gettime} syscalls
Tony Luck [Wed, 6 Feb 2008 21:57:46 +0000 (13:57 -0800)]
[IA64] Wire up timerfd_{create,settime,gettime} syscalls

Add ia64 hooks for the new syscalls that were added in
commit 4d672e7ac79b5ec5cdc90e450823441e20464691

Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[Blackfin] arch: import defines for BF547 -- it is just like the BF548, but no CAN
Mike Frysinger [Fri, 8 Feb 2008 18:07:08 +0000 (02:07 +0800)]
[Blackfin] arch: import defines for BF547 -- it is just like the BF548, but no CAN

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
16 years agoMerge branch 'cris' of git://www.jni.nu/cris
Linus Torvalds [Fri, 8 Feb 2008 18:01:28 +0000 (10:01 -0800)]
Merge branch 'cris' of git://www.jni.nu/cris

* 'cris' of git://www.jni.nu/cris: (158 commits)
  CRIS v32: Remove hwregs/timer_defs.h, it is now architecture specific.
  CRIS v32: Change drivers/i2c.c locking.
  CRIS v32: Rewrite ARTPEC-3 gpio driver to avoid volatiles and general cleanup.
  CRIS: Add new timerfd syscall entries.
  MAINTAINERS: Add my information for the CRIS port.
  CRIS v32: Correct spelling of bandwidth in function name.
  CRIS v32: Clean up nandflash.c for ARTPEC-3 and ETRAX FS.
  CRIS v10: Cleanup of drivers/gpio.c
  CRIS v10: drivers/net/cris/eth_v10.c rename LED defines to CRIS_LED to avoid name clash.
  CRIS: Make io_pwm_set_period members unsigned in etraxgpio.h
  CRIS: Move ETRAX_AXISFLASHMAP to common Kconfig file.
  CRIS: Drop regs parameter from call to profile_tick in kernel/time.c
  CRIS v32: Fix minor formatting issue in mach-a3/io.c
  CRIS v32: Initialize GIO even if we're rambooting in kernel/head.S
  CRIS v32: Remove kernel/arbiter.c, it now exists in machine dependent directory.
  CRIS v32: Minor changes to avoid errors in asm-cris/arch-v32/hwregs/reg_rdwr.h
  CRIS v32: arch-v32/hwregs/intr_vect_defs.h moved to machine dependent directory.
  CRIS v32: Correct offset for TASK_pid in asm-cris/arch-v32/offset.h
  CRIS v32: Move register map header to machine dependent directory.
  CRIS v32: Let compiler know that memory is clobbered after a break op.
  ...

16 years ago[Blackfin] arch: fix build fails only include header files when enabled
Mike Frysinger [Fri, 8 Feb 2008 17:49:23 +0000 (01:49 +0800)]
[Blackfin] arch: fix build fails only include header files when enabled

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Fri, 8 Feb 2008 17:42:46 +0000 (09:42 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  Enhanced partition statistics: documentation update
  Enhanced partition statistics: remove old partition statistics
  Enhanced partition statistics: procfs
  Enhanced partition statistics: sysfs
  Enhanced partition statistics: aoe fix
  Enhanced partition statistics: update partition statitics
  Enhanced partition statistics: core statistics
  block: fixup rq_init() a bit

Manually fixed conflict in drivers/block/aoe/aoecmd.c due to statistics
support.

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
Linus Torvalds [Fri, 8 Feb 2008 17:33:02 +0000 (09:33 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
  dlm: add __init and __exit marks to init and exit functions
  dlm: eliminate astparam type casting
  dlm: proper types for asts and basts
  dlm: dlm/user.c input validation fixes
  dlm: fix dlm_dir_lookup() handling of too long names
  dlm: fix overflows when copying from ->m_extra to lvb
  dlm: make find_rsb() fail gracefully when namelen is too large
  dlm: receive_rcom_lock_args() overflow check
  dlm: verify that places expecting rcom_lock have packet long enough
  dlm: validate data in dlm_recover_directory()
  dlm: missing length check in check_config()
  dlm: use proper type for ->ls_recover_buf
  dlm: do not byteswap rcom_config
  dlm: do not byteswap rcom_lock
  dlm: dlm_process_incoming_buffer() fixes
  dlm: use proper C for dlm/requestqueue stuff (and fix alignment bug)

16 years agoMerge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus...
Linus Torvalds [Fri, 8 Feb 2008 17:31:42 +0000 (09:31 -0800)]
Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Add arch-specific walk_memory_remove() for 64-bit powerpc
  [POWERPC] Enable hotplug memory remove for 64-bit powerpc
  [POWERPC] Add remove_memory() for 64-bit powerpc
  [POWERPC] Make cell IOMMU fixed mapping printk more useful
  [POWERPC] Fix potential cell IOMMU bug when switching back to default DMA ops
  [POWERPC] Don't enable cell IOMMU fixed mapping if there are no dma-ranges
  [POWERPC] Fix cell IOMMU null pointer explosion on old firmwares
  [POWERPC] spufs: Fix timing dependent false return from spufs_run_spu
  [POWERPC] spufs: No need to have a runnable SPU for libassist update
  [POWERPC] spufs: Update SPU_Status[CISHP] in backing runcntl write
  [POWERPC] spufs: Fix state_mutex leaks
  [POWERPC] Disable G5 NAP mode during SMU commands on U3

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Fri, 8 Feb 2008 17:29:39 +0000 (09:29 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Make use of the new fs/compat_binfmt_elf.c
  [SPARC64]: Make use of compat_sys_ptrace()

Manually fixed trivial delete/modift conflict in arch/sparc64/kernel/binfmt_elf32.c

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 8 Feb 2008 17:27:06 +0000 (09:27 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  [IPSEC] flow: reorder "struct flow_cache_entry" and remove SLAB_HWCACHE_ALIGN
  [DECNET] ROUTE: remove unecessary alignment
  [IPSEC]: Add support for aes-ctr.
  [ISDN]: fix section mismatch warning in enpci_card_msg
  [TIPC]: declare proto_ops structures as 'const'.
  [TIPC]: Kill unused static inline (x5)
  [TC]: oops in em_meta
  [IPV6] Minor cleanup: remove unused definitions in net/ip6_fib.h
  [IPV6] Minor clenup: remove two unused definitions in net/ip6_route.h
  [AF_IUCV]: defensive programming of iucv_callback_txdone
  [AF_IUCV]: broken send_skb_q results in endless loop
  [IUCV]: wrong irq-disabling locking at module load time
  [CAN]: Minor clean-ups
  [CAN]: Move proto_{,un}register() out of spin-locked region
  [CAN]: Clean up module auto loading
  [IPSEC] flow: Remove an unnecessary ____cacheline_aligned
  [IPV4]: route: fix crash ip_route_input
  [NETFILTER]: xt_iprange: add missing #include
  [NETFILTER]: xt_iprange: fix typo in address family
  [NETFILTER]: nf_conntrack: fix ct_extend ->move operation
  ...

16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Fri, 8 Feb 2008 17:25:58 +0000 (09:25 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  acer-wmi, tc1100-wmi: select ACPI_WMI
  ACPI: WMI: Improve Kconfig description
  ACPI: DMI: add Panasonic CF-52 and Thinpad X61
  ACPI: thermal: syntax, spelling, kernel-doc
  intel_menlo: build on X86 only
  ACPI: build WMI on X86 only
  ACPI: cpufreq: Print _PPC changes via cpufreq debug layer
  ACPI: add newline to printk

16 years agosplice: missing user pointer access verification
Jens Axboe [Fri, 8 Feb 2008 16:49:14 +0000 (08:49 -0800)]
splice: missing user pointer access verification

vmsplice_to_user() must always check the user pointer and length
with access_ok() before copying. Likewise, for the slow path of
copy_from_user_mmap_sem() we need to check that we may read from
the user region.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Wojciech Purczynski <cliph@research.coseinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoquota: turn quotas off when remounting read-only
Jan Kara [Fri, 8 Feb 2008 12:22:13 +0000 (04:22 -0800)]
quota: turn quotas off when remounting read-only

Turn off quotas before filesystem is remounted read only.  Otherwise quota
will try to write to read-only filesystem which does no good...  We could
also just refuse to remount ro when quota is enabled but turning quota off
is consistent with what we do on umount.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoext3 can fail badly when device stops accepting BIO_RW_BARRIER requests
Neil Brown [Fri, 8 Feb 2008 12:22:13 +0000 (04:22 -0800)]
ext3 can fail badly when device stops accepting BIO_RW_BARRIER requests

Some devices - notably dm and md - can change their behaviour in response
to BIO_RW_BARRIER requests.  They might start out accepting such requests
but on reconfiguration, they find out that they cannot any more.

ext3 (and other filesystems) deal with this by always testing if
BIO_RW_BARRIER requests fail with EOPNOTSUPP, and retrying the write
requests without the barrier (probably after waiting for any pending writes
to complete).

However there is a bug in the handling for this for ext3.

When ext3 (jbd actually) decides to submit a BIO_RW_BARRIER request, it
sets the buffer_ordered flag on the buffer head.  If the request completes
successfully, the flag STAYS SET.

Other code might then write the same buffer_head after the device has been
reconfigured to not accept barriers.  This write will then fail, but the
"other code" is not ready to handle EOPNOTSUPP errors and the error will be
treated as fatal.

This can be seen without having to reconfigure a device at exactly the
wrong time by putting:

if (buffer_ordered(bh))
printk("OH DEAR, and ordered buffer\n");

in the while loop in "commit phase 5" of journal_commit_transaction.

If it ever prints the "OH DEAR ..." message (as it does sometimes for
me), then that request could (in different circumstances) have failed
with EOPNOTSUPP, but that isn't tested for.

My proposed fix is to clear the buffer_ordered flag after it has been
used, as in the following patch.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoreduce large do_mount stack usage with noinlines
Eric Sandeen [Fri, 8 Feb 2008 12:22:12 +0000 (04:22 -0800)]
reduce large do_mount stack usage with noinlines

do_mount() uses a whopping 616 bytes of stack on x86_64 in 2.6.24-mm1,
largely thanks to gcc inlining the various helper functions.

noinlining these can slim it down a lot; on my box this patch gets it down
to 168, which is mostly the struct nameidata nd; left on the stack.

These functions are called only as do_mount() helpers; none of them should
be in any path that would see a performance benefit from inlining...

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: fix mm_context memory leak
Jeff Dike [Fri, 8 Feb 2008 12:22:11 +0000 (04:22 -0800)]
uml: fix mm_context memory leak

[ Spotted by Miklos ]

Fix a memory leak in init_new_context.  The struct page ** buffer allocated
for install_special_mapping was never recorded, and thus leaked when the
mm_struct was freed.  Fix it by saving the pointer in mm_context_t and freeing
it in arch_exit_mmap.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: x86_64 should copy %fs during fork
Jeff Dike [Fri, 8 Feb 2008 12:22:10 +0000 (04:22 -0800)]
uml: x86_64 should copy %fs during fork

%fs needs to be copied from parent to child during fork.

Tidied up some whitespace while I was here.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: improved error handling while locating temp dir
Jim Meyering [Fri, 8 Feb 2008 12:22:09 +0000 (04:22 -0800)]
uml: improved error handling while locating temp dir

* arch/um/os-Linux/mem.c (make_tempfile): Don't deref NULL upon failed malloc.

* arch/um/os-Linux/mem.c (make_tempfile): Handle NULL tempdir.
Don't let a long tempdir (e.g., via TMPDIR) provoke heap corruption.

[ jdike - formatting cleanups, deleted obsolete comment ]

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: style fixes in arch/um/os-Linux
Jeff Dike [Fri, 8 Feb 2008 12:22:08 +0000 (04:22 -0800)]
uml: style fixes in arch/um/os-Linux

Style changes under arch/um/os-Linux:
include trimming
CodingStyle fixes
some printks needed severity indicators

make_tempfile turns out not to be used outside of mem.c, so it is now static.
Its declaration in tempfile.h is no longer needed, and tempfile.h itself is no
longer needed.

create_tmp_file was also made static.

checkpatch moans about an EXPORT_SYMBOL in user_syms.c which is part of a
macro definition - this is copying a bit of kernel infrastructure into the
libc side of UML because the kernel headers can't be included there.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>