Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: cpa, strict range check in try_preserve_large_page()
Right now, we check only the first 4k page for static required protections.
This does not take overlapping regions into account. So we might end up
setting the wrong permissions/protections for other parts of this large page.
This can be optimized further, but correctness is the important part.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: cpa, enable CONFIG_DEBUG_PAGEALLOC on 64-bit
Now, that the page pool is in place we can enable DEBUG_PAGEALLOC on
64bit.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: cpa, use page pool
Switch the split page code to use the page pool. We do this
unconditionally to avoid different behaviour with and without
DEBUG_PAGEALLOC enabled.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: introduce page pool in cpa
DEBUG_PAGEALLOC was not possible on 64-bit due to its early-bootup
hardcoded reliance on PSE pages, and the unrobustness of the runtime
splitup of large pages. The splitup ended in recursive calls to
alloc_pages() when a page for a pte split was requested.
Avoid the recursion with a preallocated page pool, which is used to
split up large mappings and gets refilled in the return path of
kernel_map_pages after the split has been done. The size of the page
pool is adjusted to the available memory.
This part just implements the page pool and the initialization w/o
using it yet.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: DEBUG_PAGEALLOC: enable after mem_init()
DEBUG_PAGEALLOC must not be enabled before mem_init(). Before this
point there is nothing to allocate.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
brk: help text typo fix
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ahmed S. Darwish [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
lguest: accept guest _PAGE_PWT page table entries
Beginning from commit
4138cc3418f5, ioremap_nocache() sets the _PAGE_PWT
flag.
Lguest doesn't accept a guest pte with a _PWT flag and reports a "bad
page table entry" in that case.
Accept guest _PAGE_PWT page table entries.
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rafael J. Wysocki [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86 PM: update stale comments
In some suspend and hibernation files in arch/x86/power there are
comments referring to arch/x86-64 and arch/i386 . Update them to
reflect the current code layout.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rafael J. Wysocki [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86 PM: consolidate suspend and hibernation code
Move the hibernation-specific code from arch/x86/power/suspend_64.c
to a separate file (hibernate_64.c) and the CPU-handling code to
cpu_64.c (in line with the corresponding 32-bit code).
Simplify arch/x86/power/Makefile .
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rafael J. Wysocki [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86 PM: rename 32-bit files in arch/x86/power
Rename cpu.c, suspend.c and swsusp.S in arch/x86/power to cpu_32.c,
hibernate_32.c and hibernate_asm_32.S, respectively, and update the
purpose and copyright information in these files.
Update the Makefile in arch/x86/power to reflect the above changes.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rafael J. Wysocki [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86 PM: move 64-bit hibernation files to arch/x86/power
Move arch/x86/kernel/suspend_64.c to arch/x86/power .
Move arch/x86/kernel/suspend_asm_64.S to arch/x86/power
as hibernate_asm_64.S .
Update purpose and copyright information in
arch/x86/power/suspend_64.c and
arch/x86/power/hibernate_asm_64.S .
Update the Makefiles in arch/x86, arch/x86/kernel and
arch/x86/power to reflect the above changes.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Denys Vlasenko [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: trivial printk optimizations
In arch/x86/boot/printf.c gets rid of unused tail of digits: const char
*digits = "0123456789abcdefghijklmnopqrstuvwxyz"; (we are using 0-9a-f
only)
Uses smaller/faster lowercasing (by ORing with 0x20)
if we know that we work on numbers/digits. Makes
strtoul smaller, and also we are getting rid of
static const char small_digits[] = "0123456789abcdefx";
static const char large_digits[] = "0123456789ABCDEFX";
since this works equally well:
static const char digits[16] = "
0123456789ABCDEF";
Size savings:
$ size vmlinux.org vmlinux
text data bss dec hex filename
877320 112252 90112
1079684 107984 vmlinux.org
877048 112252 90112
1079412 107874 vmlinux
It may be also a tiny bit faster because code has less
branches now, but I doubt it is measurable.
[ hugh@veritas.com: uppercase pointers fix ]
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ian Campbell [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: fix early_ioremap pagetable ops
Some important parts of
f6df72e71eba621b2f5c49b3a763116fac748f6e got
dropped along the way, reintroduce them.
Only affects paravirt guests.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ian Campbell [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: construct 32-bit boot time page tables in native format.
Specifically the boot time page tables in a CONFIG_X86_PAE=y enabled
kernel are in PAE format.
early_ioremap is updated to use the standard page table accessors.
Clear any mappings beyond max_low_pfn from the boot page tables in
native_pagetable_setup_start because the initial mappings can extend
beyond the range of physical memory and into the vmalloc area.
Derived from patches by Eric Biederman and H. Peter Anvin.
[ jeremy@goop.org: PAE swapper_pg_dir needs to be page-sized fix ]
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Mika PenttilÃ\83¤ <mika.penttila@kolumbus.fi>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86, core: remove CONFIG_FORCED_INLINING
Other than the defconfigs, remove the entry in compiler-gcc4.h,
Kconfig.debug and feature-removal-schedule.txt.
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>
Thomas Gleixner [Sat, 9 Feb 2008 22:24:09 +0000 (23:24 +0100)]
x86: avoid unused variable warning in mm/init_64.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Linus Torvalds [Sat, 9 Feb 2008 19:15:23 +0000 (11:15 -0800)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/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.
Linus Torvalds [Sat, 9 Feb 2008 19:14:20 +0000 (11:14 -0800)]
Merge git://git./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
Linus Torvalds [Sat, 9 Feb 2008 19:12:31 +0000 (11:12 -0800)]
Merge branch 'release' of git://git./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.
Linus Torvalds [Sat, 9 Feb 2008 19:12:15 +0000 (11:12 -0800)]
Merge branch 'for-linus' of git://git./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
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
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Len Brown [Sat, 9 Feb 2008 09:32:55 +0000 (04:32 -0500)]
Merge branches 'release', 'wmi' and 'laptop-docs' into release
Len Brown [Sat, 9 Feb 2008 09:32:47 +0000 (04:32 -0500)]
Merge branches 'release' and 'bugzilla-9910' into release
Len Brown [Sat, 9 Feb 2008 09:32:40 +0000 (04:32 -0500)]
Merge branches 'release' and 'buildfix' into release
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Linus Torvalds [Fri, 8 Feb 2008 23:40:28 +0000 (15:40 -0800)]
Merge branch 'release' of git://git./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
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>
Linus Torvalds [Fri, 8 Feb 2008 23:34:26 +0000 (15:34 -0800)]
Merge branch 'for-linus' of git://git./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
Linus Torvalds [Fri, 8 Feb 2008 23:33:45 +0000 (15:33 -0800)]
Merge branch 'for-linus' of git://git./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
...
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
projects / openwrt / staging / blogic.git / log