14 years ago[PATCH] x86: Detect CFI support in the assembler at runtime
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] x86: Detect CFI support in the assembler at runtime

... instead of using a CONFIG option. The config option still controls
if the resulting executable actually has unwind information.

This is useful to prevent compilation errors when users select
CONFIG_STACK_UNWIND on old binutils and also allows to use
CFI in the future for non kernel debugging applications.

Cc: jbeulich@novell.com
Cc: sam@ravnborg.org

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Use BUILD_BUG_ON in apic.c build sanity checking
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Use BUILD_BUG_ON in apic.c build sanity checking

Makes code a little shorter.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Clean up code style in mpparse.c ACPI code
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] i386: Clean up code style in mpparse.c ACPI code

Remove some unlinuxy ways to write function parameter definitions.
Remove some stray "return;"s

No functional change.

Cc: len.brown@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Fix up some non linuxy style in ACPI functions in mpparse.c
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Fix up some non linuxy style in ACPI functions in mpparse.c

No functional changes.

Cc: len.brown@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove some unneeded ACPI externs in mpparse.c
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Remove some unneeded ACPI externs in mpparse.c

They are not used in this file so remove them. i386 didn't have them either.

Cc: len.brown@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove useless wrapper in mpparse.c code
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Remove useless wrapper in mpparse.c code

It used to contain support code for NUMAQ, but that is long gone already
on 64bit.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Replace mp bus array with bitmap for bus not pci
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Replace mp bus array with bitmap for bus not pci

Since we only support PCI and ISA legacy busses now there is no need to
have an full array with checking.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Move early chipset quirks out to new file
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Move early chipset quirks out to new file

They did not really belong into io_apic.c. Move them into a new file
and clean it up a bit.

Also remove outdated ATI quirk that was obsolete,

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove MPS table APIC renumbering
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Remove MPS table APIC renumbering

The MPS table specification says that the operating system should
renumber the IO-APICs following the table as needed.  However in
ACPI this is not allowed or neeeded and all x86-64 systems are ACPI
compliant.

The code was already disabled on some systems because it caused
problems there. Remove it completely now.

CC: mdomsch@dell.com

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: AUX_DEVICE_INFO is one byte long, use 'movb'
Diego Calleja [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] x86: AUX_DEVICE_INFO is one byte long, use 'movb'

Bugzilla #6552 says:

"In arch/i386/boot/setup.S, movw is used instead of movb for PS/2 mouse
information, although it is unsigned char. This does not harm, because
the jmp instruction overwritten by movw is used before executing movw,
and never be used again"

I've no idea if this is a real bug or how it gets fixed, so I'm submitting
it for review instead of letting it die of boredom in bugzilla. Aditionally
to i386, I've changed x86-64, which mirrors the same code.

Credits to Yoshinori K. Okuji, who found the problem and suggested a fix.

Signed-off-by: Diego Calleja <diegocg@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Factor out common io apic routing entry access
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] i386: Factor out common io apic routing entry access

The IO APIC code had lots of duplicated code to read/write 64bit
routing entries into the IO-APIC. Factor this out int common read/write
functions

In a few cases the IO APIC lock is taken more often now, but this
isn't a problem because it's all initialization/shutdown only
slow path code.

Similar to earlier x86-64 patch.

Includes a fix by Jiri Slaby for a mistake that broke resume

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Factor out common io apic routing entry access
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Factor out common io apic routing entry access

The IO APIC code had lots of duplicated code to read/write 64bit
routing entries into the IO-APIC. Factor this out int common read/write
functions

In a few cases the IO APIC lock is taken more often now, but this
isn't a problem because it's all initialization/shutdown only
slow path code.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386/x86-64: Remove obsolete sanity check in mptable parsing
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] i386/x86-64: Remove obsolete sanity check in mptable parsing

It apparently has never triggered in many years.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove obsolete PIC mode
Andi Kleen [Tue, 26 Sep 2006 08:52:30 +0000]
[PATCH] Remove obsolete PIC mode

PIC mode is an outdated way to drive the APICs that was used on
some early MP boards. It is not supported in the ACPI model.

It is unlikely to be ever configured by any x86-64 system

Remove it thus.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove leftover MCE/EISA support
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove leftover MCE/EISA support

No 64bit EISA or Microchannel systems ever. Remove the left over code
in the IO-APIC driver and the mptable parser

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove pirq overwrite support
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove pirq overwrite support

This was an old workaround for broken MP-BIOS. The user could
specify overwrites on the command line.

I've never seen it being used for anything on 64bit. So get
rid of it for now.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add some comments to entry.S
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Add some comments to entry.S

And remove some old obsolete ones.
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Minor fixes & cleanup to tlb flush
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] i386: Minor fixes & cleanup to tlb flush

(based on x86-64 changes)
- Add a proper memory clobber to invlpg
- Remove an unused extern

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Clean up and minor fixes to TLB flush
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Clean up and minor fixes to TLB flush

- Convert CR* accesses to dedicated inline functions and rewrite
the rest as C inlines
- Don't do a double flush for global flushes (pointed out by Zach Amsden)
This was a bug workaround for old CPUs that don't do 64bit and is obsolete.
- Add a proper memory clobber to invlpg
- Remove an unused extern

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove old "focus disabled" chipset errata workaround
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove old "focus disabled" chipset errata workaround

The new systems already use focus disabled and the comment was
completely outdated.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove apic mismatch counter
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove apic mismatch counter

Nobody has been setting the mismatch counter and the ifdef was never
set so remove it.
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove all ifdefs for local/io apic
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove all ifdefs for local/io apic

IO-APIC or local APIC can only be disabled at runtime anyways and
Kconfig has forced these options on for a long time now.

The Kconfigs are kept only now for the benefit of the shared acpi
boot.c code.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add some comments what tce.c actually does
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Add some comments what tce.c actually does

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Remove leftover CVS Id in thunk.S
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Remove leftover CVS Id in thunk.S

And move the comment to a proper place.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Redo semaphore and rwlock assembly helpers
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] i386: Redo semaphore and rwlock assembly helpers

- Move them to a pure assembly file. Previously they were in
a C file that only consisted of inline assembly. Doing it in pure
assembler is much nicer.
- Add a frame.i include with FRAME/ENDFRAME macros to easily
add frame pointers to assembly functions
- Add dwarf2 annotation to them so that the new dwarf2 unwinder
doesn't get stuck on them
- Random cleanups

Includes feedback from Jan Beulich and a UML build fix from Andrew
Morton.

Cc: jbeulich@novell.com
Cc: jdike@addtoit.com
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files

LOCK_PREFIX is replaced by nops on UP systems, so it has to be a special
macro.  Previously this was only possible from C. Allow it for pure
assembly files too. Similar to earlier x86-64 patch.
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add proper alignment to ENTRY
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] Add proper alignment to ENTRY

Previously it didn't align. Use the same one as the C compiler
in blended mode, which is good for K8 and Core2 and doesn't hurt
on P4.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Remove const case for rwlocks
Andi Kleen [Tue, 26 Sep 2006 08:52:29 +0000]
[PATCH] i386: Remove const case for rwlocks

rwlocks are now out of line, so it near never triggers.  Also it was
incompatible with the new dwarf2 unwinder because it had unannotiatable
push/pops.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Clean up read write lock assembly
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Clean up read write lock assembly

- Move the slow path fallbacks to their own assembly files
This makes them much easier to read and is needed for the next change.
- Add CFI annotations for unwinding (XXX need review)
- Remove constant case which can never happen with out of line spinlocks
- Use patchable LOCK prefixes
- Don't use lock sections anymore for inline code because they can't
be expressed by the unwinder (this adds one taken jump to the lock
fast path)

Cc: jbeulich@novell.com

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Support patchable lock prefix for pure assembly files
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Support patchable lock prefix for pure assembly files

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Document backtracer selection options
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Document backtracer selection options

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Simplify profile_pc on x86-64
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Simplify profile_pc on x86-64

Use knowledge about EFLAGS layout (bits 22:63 are always 0) to distingush
EFLAGS word and kernel address in the spin lock stack frame.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Account spinlocks to the caller during profiling for !FP kernels
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] i386: Account spinlocks to the caller during profiling for !FP kernels

This ports the algorithm from x86-64 (with improvements) to i386.
Previously this only worked for frame pointer enabled kernels.
But spinlocks have a very simple stack frame that can be manually
analyzed. Do this.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386/x86-64: Don't randomize stack top when no randomization personality...
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] i386/x86-64: Don't randomize stack top when no randomization personality is set

Based on patch from Frank van Maarseveen <frankvm@frankvm.com>, but
extended.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] A few trivial spelling and grammar fixes
Adam Henley [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] A few trivial spelling and grammar fixes

A few trivial spelling and grammar mistakes picked up in
"arch/x86_64/aperture.c", "arch/x86_64/crash.c" and
"arch/x86_64/apic.c". I think all are correct fixes but am ever aware
of my fallibility :o) This is my first patch submission so all
feedback is appreciated, esp. WRT CCing to Linus, Andi and
trivial@kernel.org, is this correct? And which is the most appropriate
kernel version to diff against? If any.

Should apply cleanly to 2.6.18-rc1

Signed-off-by: Adam Henley <adamazing@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>

-  adam

14 years ago[PATCH] Don't print virtual address in HPET initialization
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Don't print virtual address in HPET initialization

virtual addresses don't belong into kernel logs for non debugging

Cc: clemens@ladisch.de
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86-64 TIF flags for debug regs and io bitmap in ctxsw
Stephane Eranian [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] x86-64 TIF flags for debug regs and io bitmap in ctxsw

Hello,

Following my discussion with Andi. Here is a patch that introduces
two new TIF flags to simplify the context switch code in __switch_to().
The idea is to minimize the number of cache lines accessed in the common
case, i.e., when neither the debug registers nor the I/O bitmap are used.

This patch covers the x86-64 modifications. A patch for i386 follows.

Changelog:
- add TIF_DEBUG to track when debug registers are active
- add TIF_IO_BITMAP to track when I/O bitmap is used
- modify __switch_to() to use the new TIF flags

<signed-off-by>: eranian@hpl.hp.com

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Clean up asm/smp.h includes
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Clean up asm/smp.h includes

No need to include it from entry.S
Drop all the #ifdef __ASSEMBLY__

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Add portable getcpu call
Andi Kleen [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] x86: Add portable getcpu call

For NUMA optimization and some other algorithms it is useful to have a fast
to get the current CPU and node numbers in user space.

x86-64 added a fast way to do this in a vsyscall. This adds a generic
syscall for other architectures to make it a generic portable facility.

I expect some of them will also implement it as a faster vsyscall.

The cache is an optimization for the x86-64 vsyscall optimization. Since
what the syscall returns is an approximation anyways and user space
often wants very fast results it can be cached for some time.  The norma
methods to get this information in user space are relatively slow

The vsyscall is in a better position to manage the cache because it has direct
access to a fast time stamp (jiffies). For the generic syscall optimization
it doesn't help much, but enforce a valid argument to keep programs
portable

I only added an i386 syscall entry for now. Other architectures can follow
as needed.

AK: Also added some cleanups from Andrew Morton

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add the vgetcpu vsyscall
Vojtech Pavlik [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Add the vgetcpu vsyscall

This patch adds a vgetcpu vsyscall, which depending on the CPU RDTSCP
capability uses either the RDTSCP or CPUID to obtain a CPU and node
numbers and pass them to the program.

AK: Lots of changes over Vojtech's original code:
Better prototype for vgetcpu()
It's better to pass the cpu / node numbers as separate arguments
to avoid mistakes when going from SMP to NUMA.
Also add a fast time stamp based cache using a user supplied
argument to speed things more up.
Use fast method from Chuck Ebbert to retrieve node/cpu from
GDT limit instead of CPUID
Made sure RDTSCP init is always executed after node is known.
Drop printk

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add initalization of the RDTSCP auxilliary values
Vojtech Pavlik [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Add initalization of the RDTSCP auxilliary values

This patch adds initalization of the RDTSCP auxilliary values to CPU numbers
to time.c. If RDTSCP is available, the MSRs are written with the respective
values. It can be later used to initalize per-cpu timekeeping variables.

AK: Some cleanups. Move externs into headers and fix CPU hotplug.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add macros for rdtscp
Vojtech Pavlik [Tue, 26 Sep 2006 08:52:28 +0000]
[PATCH] Add macros for rdtscp

This patch adds macros for reading tsc via the RDTSCP instruction, as well
as writing the auxilliary MSR read by RDTSCP to msr.h

[AK: changed rdtscp definition for old binutils]

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: i386/x86-64 Add nmi watchdog support for new Intel CPUs
Venkatesh Pallipadi [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] x86: i386/x86-64 Add nmi watchdog support for new Intel CPUs

AK: This redoes the changes I temporarily reverted.

Intel now has support for Architectural Performance Monitoring Counters
( Refer to IA-32 Intel Architecture Software Developer's Manual
http://www.intel.com/design/pentium4/manuals/253669.htm ). This
feature is present starting from Intel Core Duo and Intel Core Solo processors.

What this means is, the performance monitoring counters and some performance
monitoring events are now defined in an architectural way (using cpuid).
And there will be no need to check for family/model etc for these architectural
events.

Below is the patch to use this performance counters in nmi watchdog driver.
Patch handles both i386 and x86-64 kernels.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Enable NMI watchdog by default
Andi Kleen [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] i386: Enable NMI watchdog by default

I've had good experiences with having this on by default on x86-64.
It turns nasty hangs into easier to debug oopses.

Enable the local APIC wdog by default for systems newer than 2004.

This comes from a strange compromise: according to arjan the reason
it was off by default was some old IBM systems that corrupted
registered when NMI happened in SMI. Can't remember more specific,
but >= 2004 should avoid these. It's probably overly broad
because most older systems should be ok (and the really old systems
won't be supported by the local apic watchdog anyways)

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Kdump i386 nmi event notification fix
Vivek Goyal [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] i386: Kdump i386 nmi event notification fix

After a crash we should wait for NMI IPI event and not for external NMI or
NMI watchdog tick.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>

14 years ago[PATCH] kdump x86_64 nmi event notification fix
Vivek Goyal [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] kdump x86_64 nmi event notification fix

After a crash we should wait for NMI IPI event and not for external NMI or
NMI watchdog tick.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>

14 years ago[PATCH] i386: make functions static
Adrian Bunk [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] i386: make functions static

This patch makes the following needlessly global functions static:
- nmi_int.c: profile_exceptions_notify()
- nmi_timer_int.c: profile_timer_exceptions_notify()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Fix up panic messages for different NMI panics
Andi Kleen [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] Fix up panic messages for different NMI panics

When a unknown NMI happened the panic would claim a NMI watchdog timeout.
Also it would check the variable set by nmi_watchdog=panic and panic then.

Fix up the panic message to be generic
Unconditionally panic on unknown NMI when panic on unknown nmi is enabled.

Noticed by Jan Beulich

Cc: jbeulich@novell.com

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386/x86-64: Fix NMI watchdog suspend/resume
Shaohua Li [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] i386/x86-64: Fix NMI watchdog suspend/resume

Making NMI suspend/resume work with SMP. We use CPU hotplug to offline
APs in SMP suspend/resume. Only BSP executes sysdev's .suspend/.resume
method. APs should follow CPU hotplug code path.

And:

+From: Don Zickus <dzickus@redhat.com>

Makes the start/stop paths of nmi watchdog more robust to handle the
suspend/resume cases more gracefully.

AK: I merged the two patches together

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>

14 years ago[PATCH] x86: x86 clean up nmi panic messages
Don Zickus [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] x86: x86 clean up nmi panic messages

Clean up some of the output messages on the nmi error paths to make more
sense when they are displayed.  This is mainly a cosmetic fix and
shouldn't impact any normal code path.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Allow users to force a panic on NMI
Don Zickus [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] x86: Allow users to force a panic on NMI

To quote Alan Cox:

The default Linux behaviour on an NMI of either memory or unknown is to
continue operation. For many environments such as scientific computing
it is preferable that the box is taken out and the error dealt with than
an uncorrected parity/ECC error get propogated.

A small number of systems do generate NMI's for bizarre random reasons
such as power management so the default is unchanged. In other respects
the new proc/sys entry works like the existing panic controls already in
that directory.

This is separate to the edac support - EDAC allows supported chipsets to
handle ECC errors well, this change allows unsupported cases to at least
panic rather than cause problems further down the line.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Add abilty to enable/disable nmi watchdog from procfs (update)
Don Zickus [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] x86: Add abilty to enable/disable nmi watchdog from procfs (update)

Adds a new /proc/sys/kernel/nmi_watchdog call that will enable/disable the
nmi watchdog.

By entering a non-zero value here, a user can enable the nmi watchdog to
monitor the online cpus in the system.  By entering a zero value here, a
user can disable the nmi watchdog and free up a performance counter which
could then be utilized by the oprofile subsystem, otherwise oprofile may be
short a counter when in use.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>

14 years ago[PATCH] x86: Add abilty to enable/disable nmi watchdog with sysctl
Don Zickus [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] x86: Add abilty to enable/disable nmi watchdog with sysctl

Adds a new /proc/sys/kernel/nmi call that will enable/disable the nmi
watchdog.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386/x86-64: Remove un/set_nmi_callback and reserve/release_lapic_nmi functions
Don Zickus [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] i386/x86-64: Remove un/set_nmi_callback and reserve/release_lapic_nmi functions

Removes the un/set_nmi_callback and reserve/release_lapic_nmi functions as
they are no longer needed.  The various subsystems are modified to register
with the die_notifier instead.

Also includes compile fixes by Andrew Morton.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add ppoll/pselect syscalls
Andi Kleen [Tue, 26 Sep 2006 08:52:27 +0000]
[PATCH] Add ppoll/pselect syscalls

Needed TIF_RESTORE_SIGMASK first

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add TIF_RESTORE_SIGMASK
Andi Kleen [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] Add TIF_RESTORE_SIGMASK

We need TIF_RESTORE_SIGMASK in order to support ppoll() and pselect()
system calls. This patch originally came from Andi, and was based
heavily on David Howells' implementation of same on i386. I fixed a typo
which was causing do_signal() to use the wrong signal mask.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Cleanup NMI interrupt path
Don Zickus [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] x86: Cleanup NMI interrupt path

This patch cleans up the NMI interrupt path.  Instead of being gated by if
the 'nmi callback' is set, the interrupt handler now calls everyone who is
registered on the die_chain and additionally checks the nmi watchdog,
reseting it if enabled.  This allows more subsystems to hook into the NMI if
they need to (without being block by set_nmi_callback).

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Add SMP support on i386 to reservation framework
Don Zickus [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] i386: Add SMP support on i386 to reservation framework

This patch includes the changes to make the nmi watchdog on i386 SMP aware.
A bunch of code was moved around to make it simpler to read.  In addition,
it is now possible to determine if a particular NMI was the result of the
watchdog or not.  This feature allows the kernel to filter out unknown NMIs
easier.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Add SMP support on x86_64 to reservation framework
Don Zickus [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] Add SMP support on x86_64 to reservation framework

This patch includes the changes to make the nmi watchdog on x86_64 SMP
aware.  A bunch of code was moved around to make it simpler to read.  In
addition, it is now possible to determine if a particular NMI was the result
of the watchdog or not.  This feature allows the kernel to filter out
unknown NMIs easier.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Utilize performance counter reservation framework in oprofile
Don Zickus [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] i386: Utilize performance counter reservation framework in oprofile

Incorporates the new performance counter reservation system in oprofile.
Also cleans up a lot of the initialization code.  The code original zero'd
out every register associated with performance counters regardless if those
registers were used or not.  This causes issues with the nmi watchdog.
Now oprofile tries to reserve registers and gives up if it can't get them.

Cc: levon@movementarian.org
Cc: oprofile-list@lists.sf.net

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Add performance counter reservation framework for UP kernels
Don Zickus [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] x86: Add performance counter reservation framework for UP kernels

Adds basic infrastructure to allow subsystems to reserve performance
counters on the x86 chips.  Only UP kernels are supported in this patch to
make reviewing easier.  The SMP portion makes a lot more changes.

Think of this as a locking mechanism where each bit represents a different
counter.  In addition, each subsystem should also reserve an appropriate
event selection register that will correspond to the performance counter it
will be using (this is mainly neccessary for the Pentium 4 chips as they
break the 1:1 relationship to performance counters).

This will help prevent subsystems like oprofile from interfering with the
nmi watchdog.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] x86: Temporarily revert parts of the Core 2 nmi nmi watchdog support
Andi Kleen [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] x86: Temporarily revert parts of the Core 2 nmi nmi watchdog support

This makes merging easier.  They are readded a few patches later.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Allow to use GENERICARCH for UP kernels
Andi Kleen [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] i386: Allow to use GENERICARCH for UP kernels

There are some machines around (large xSeries or Unisys ES7000) that
need physical IO-APIC destination mode to access all of their IO
devices. This currently doesn't work in UP kernels as used in
distribution installers.

This patch allows to compile even UP kernels as GENERICARCH which
allows to use physical or clustered APIC mode.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] i386: Update defconfig
Andi Kleen [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] i386: Update defconfig

This is based on the x86-64 defconfig which works on a wide range of systems.

Signed-off-by: Andi Kleen <ak@suse.de>

14 years ago[PATCH] Update defconfig
Andi Kleen [Tue, 26 Sep 2006 08:52:26 +0000]
[PATCH] Update defconfig

Signed-off-by: Andi Kleen <ak@suse.de>

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 26 Sep 2006 00:39:55 +0000]
Merge /pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NetLabel]: update docs with website information
  [NetLabel]: rework the Netlink attribute handling (part 2)
  [NetLabel]: rework the Netlink attribute handling (part 1)
  [Netlink]: add nla_validate_nested()
  [NETLINK]: add nla_for_each_nested() to the interface list
  [NetLabel]: change the SELinux permissions
  [NetLabel]: make the CIPSOv4 cache spinlocks bottom half safe
  [NetLabel]: correct improper handling of non-NetLabel peer contexts
  [TCP]: make cubic the default
  [TCP]: default congestion control menu
  [ATM] he: Fix __init/__devinit conflict
  [NETFILTER]: Add dscp,DSCP headers to header-y
  [DCCP]: Introduce dccp_probe
  [DCCP]: Use constants for CCIDs
  [DCCP]: Introduce constants for CCID numbers
  [DCCP]: Allow default/fallback service code.

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Tue, 26 Sep 2006 00:39:04 +0000]
Merge /pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SOUND] sparc/amd7930: Use __devinit and __devinitdata as needed.
  [SUNLANCE]: Mark sparc_lance_probe_one as __devinit.
  [SPARC64]: Fix section-mismatch errors in solaris emul module.

14 years ago[PATCH] VIDIOC_ENUMSTD bug
Jonathan Corbet [Mon, 25 Sep 2006 23:25:37 +0000]
[PATCH] VIDIOC_ENUMSTD bug

The v4l2 API documentation for VIDIOC_ENUMSTD says:

To enumerate all standards applications shall begin at index
zero, incrementing by one until the driver returns EINVAL.

The actual code, however, tests the index this way:

               if (index<=0 || index >= vfd->tvnormsize) {
                        ret=-EINVAL;

So any application which passes in index=0 gets EINVAL right off the bat
- and, in fact, this is what happens to mplayer.  So I think the
following patch is called for, and maybe even appropriate for a 2.6.18.x
stable release.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] load_module: no BUG if module_subsys uninitialized
Ed Swierk [Mon, 25 Sep 2006 23:25:36 +0000]
[PATCH] load_module: no BUG if module_subsys uninitialized

Invoking load_module() before param_sysfs_init() is called crashes in
mod_sysfs_setup(), since the kset in module_subsys is not initialized yet.

In my case, net-pf-1 is getting modprobed as a result of hotplug trying to
create a UNIX socket.  Calls to hotplug begin after the topology_init
initcall.

Another patch for the same symptom (module_subsys-initialize-earlier.patch)
moves param_sysfs_init() to the subsys initcalls, but this is still not
early enough in the boot process in some cases.  In particular,
topology_init() causes /sbin/hotplug to run, which requests net-pf-1 (the
UNIX socket protocol) which can be compiled as a module.  Moving
param_sysfs_init() to the postcore initcalls fixes this particular race,
but there might well be other cases where a usermodehelper causes a module
to load earlier still.

The patch makes load_module() return an error rather than crashing the
kernel if invoked before module_subsys is initialized.

Cc: Mark Huang <mlhuang@cs.princeton.edu>
Cc: Greg KH <greg@kroah.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] i386: fix flat mode numa on a real numa system
keith mannthey [Mon, 25 Sep 2006 23:25:35 +0000]
[PATCH] i386: fix flat mode numa on a real numa system

If there is only 1 node in the system cpus should think they are apart of
some other node.

If cases where a real numa system boots the Flat numa option make sure the
cpus don't claim to be apart on a non-existent node.

Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] cpu to node relationship fixup: map cpu to node
KAMEZAWA Hiroyuki [Mon, 25 Sep 2006 23:25:31 +0000]
[PATCH] cpu to node relationship fixup: map cpu to node

Assume that a cpu is *physically* offlined at boot time...

Because smpboot.c::smp_boot_cpu_map() canoot find cpu's sapicid,
numa.c::build_cpu_to_node_map() cannot build cpu<->node map for
offlined cpu.

For such cpus, cpu_to_node map should be fixed at cpu-hot-add.
This mapping should be done before cpu onlining.

This patch also handles cpu hotremove case.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] cpu to node relationship fixup: acpi_map_cpu2node
KAMEZAWA Hiroyuki [Mon, 25 Sep 2006 23:25:21 +0000]
[PATCH] cpu to node relationship fixup: acpi_map_cpu2node

Problem description:

  We have additional_cpus= option for allocating possible_cpus.  But nid
  for possible cpus are not fixed at boot time.  cpus which is offlined at
  boot or cpus which is not on SRAT is not tied to its node.  This will
  cause panic at cpu onlining.

Usually, pxm_to_nid() mapping is fixed at boot time by SRAT.

But, unfortunately, some system (my system!) do not include
full SRAT table for possible cpus.  (Then, I use
additiona_cpus= option.)

For such possible cpus, pxm<->nid should be fixed at
hot-add.  We now have acpi_map_pxm_to_node() which is also
used at boot.  It's suitable here.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] backlight: fix oops in __mutex_lock_slowpath during head /sys/class/graphics...
Michael Hanselmann [Mon, 25 Sep 2006 23:25:07 +0000]
[PATCH] backlight: fix oops in __mutex_lock_slowpath during head /sys/class/graphics/fb0/*

Seems like not all drivers use the framebuffer_alloc() function and won't
have an initialized mutex.  But those don't have a backlight, anyway.

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Cc: Olaf Hering <olaf@aepfle.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Daniel R Thompson <daniel.thompson@st.com>
Cc: Jon Smirl <jonsmirl@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] do not free non slab allocated per_cpu_pageset
David Rientjes [Mon, 25 Sep 2006 23:24:57 +0000]
[PATCH] do not free non slab allocated per_cpu_pageset

Stops panic associated with attempting to free a non slab-allocated
per_cpu_pageset.

Signed-off-by: David Rientjes <rientjes@cs.washington.edu>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] i386 bootioremap / kexec fix
keith mannthey [Mon, 25 Sep 2006 23:24:39 +0000]
[PATCH] i386 bootioremap / kexec fix

With CONFIG_PHYSICAL_START set to a non default values the i386
boot_ioremap code calculated its pte index wrong and users of boot_ioremap
have their areas incorrectly mapped (for me SRAT table not mapped during
early boot).  This patch removes the addr < BOOT_PTE_PTRS constraint.

[ Keith says this is applicable to 2.6.16 and 2.6.17 as well ]

Signed-off-by: Keith Mannthey<kmannth@us.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: <stable@kernel.org>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] rtc: lockdep fix/workaround
Peter Zijlstra [Mon, 25 Sep 2006 23:24:23 +0000]
[PATCH] rtc: lockdep fix/workaround

BUG: warning at kernel/lockdep.c:1816/trace_hardirqs_on() (Not tainted)
 [<c04051ee>] show_trace_log_lvl+0x58/0x171
 [<c0405802>] show_trace+0xd/0x10
 [<c040591b>] dump_stack+0x19/0x1b
 [<c043abee>] trace_hardirqs_on+0xa2/0x11e
 [<c06143c3>] _spin_unlock_irq+0x22/0x26
 [<c0541540>] rtc_get_rtc_time+0x32/0x176
 [<c0419ba4>] hpet_rtc_interrupt+0x92/0x14d
 [<c0450f94>] handle_IRQ_event+0x20/0x4d
 [<c0451055>] __do_IRQ+0x94/0xef
 [<c040678d>] do_IRQ+0x9e/0xbd
 [<c0404a49>] common_interrupt+0x25/0x2c
DWARF2 unwinder stuck at common_interrupt+0x25/0x2c

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] autofs4: zero timeout prevents shutdown
Ian Kent [Mon, 25 Sep 2006 23:24:16 +0000]
[PATCH] autofs4: zero timeout prevents shutdown

If the timeout of an autofs mount is set to zero then umounts are disabled.
 This works fine, however the kernel module checks the expire timeout and
goes no further if it is zero.  This is not the right thing to do at
shutdown as the module is passed an option to expire mounts regardless of
their timeout setting.

This patch allows autofs to honor the force expire option.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[SOUND] sparc/amd7930: Use __devinit and __devinitdata as needed.
David S. Miller [Mon, 25 Sep 2006 21:08:37 +0000]
[SOUND] sparc/amd7930: Use __devinit and __devinitdata as needed.

Fixes section-mismatch errors.

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

14 years ago[SUNLANCE]: Mark sparc_lance_probe_one as __devinit.
David S. Miller [Mon, 25 Sep 2006 21:04:49 +0000]
[SUNLANCE]: Mark sparc_lance_probe_one as __devinit.

Fixes section mismatch warnings when built as a module.

Also, mark find_ledma and sun4 init function as __devinit
too.

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

14 years ago[SPARC64]: Fix section-mismatch errors in solaris emul module.
David S. Miller [Mon, 25 Sep 2006 21:00:45 +0000]
[SPARC64]: Fix section-mismatch errors in solaris emul module.

init_socksys() was marked __init but invoked from a
non-__init function.

Use the correct module_{init,exit}() faciltiies while we're
here and eliminate some seriously bogus ifdefs.

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

14 years ago[NetLabel]: update docs with website information
Paul Moore [Mon, 25 Sep 2006 22:57:13 +0000]
[NetLabel]: update docs with website information

Now that all of the supporting pieces of NetLabel have a home at SourceForge
update the Kconfig help text and add an entry to the MAINTAINERS file.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NetLabel]: rework the Netlink attribute handling (part 2)
Paul Moore [Mon, 25 Sep 2006 22:56:37 +0000]
[NetLabel]: rework the Netlink attribute handling (part 2)

At the suggestion of Thomas Graf, rewrite NetLabel's use of Netlink attributes
to better follow the common Netlink attribute usage.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NetLabel]: rework the Netlink attribute handling (part 1)
Paul Moore [Mon, 25 Sep 2006 22:56:09 +0000]
[NetLabel]: rework the Netlink attribute handling (part 1)

At the suggestion of Thomas Graf, rewrite NetLabel's use of Netlink attributes
to better follow the common Netlink attribute usage.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[Netlink]: add nla_validate_nested()
Paul Moore [Mon, 25 Sep 2006 22:54:03 +0000]
[Netlink]: add nla_validate_nested()

Add a new function, nla_validate_nested(), to validate nested Netlink
attributes.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NETLINK]: add nla_for_each_nested() to the interface list
Paul Moore [Mon, 25 Sep 2006 22:53:37 +0000]
[NETLINK]: add nla_for_each_nested() to the interface list

At the top of include/net/netlink.h is a list of Netlink interfaces, however,
the nla_for_each_nested() macro was not listed.  This patch adds this interface
to the list at the top of the header file.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NetLabel]: change the SELinux permissions
Paul Moore [Mon, 25 Sep 2006 22:53:13 +0000]
[NetLabel]: change the SELinux permissions

Change NetLabel to use the 'recvfrom' socket permission and the
SECINITSID_NETMSG SELinux SID as the NetLabel base SID for incoming packets.
This patch effectively makes the old, and currently unused, SELinux NETMSG
permissions NetLabel permissions.

Signed-of-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NetLabel]: make the CIPSOv4 cache spinlocks bottom half safe
Paul Moore [Mon, 25 Sep 2006 22:52:37 +0000]
[NetLabel]: make the CIPSOv4 cache spinlocks bottom half safe

The CIPSOv4 cache traversal routines are triggered both the userspace events
(cache invalidation due to DOI removal or updated SELinux policy) and network
packet processing events.  As a result there is a problem with the existing
CIPSOv4 cache spinlocks as they are not bottom-half/softirq safe.  This patch
converts the CIPSOv4 cache spin_[un]lock() calls into spin_[un]lock_bh() calls
to address this problem.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[NetLabel]: correct improper handling of non-NetLabel peer contexts
Paul Moore [Mon, 25 Sep 2006 22:52:01 +0000]
[NetLabel]: correct improper handling of non-NetLabel peer contexts

Fix a problem where NetLabel would always set the value of
sk_security_struct->peer_sid in selinux_netlbl_sock_graft() to the context of
the socket, causing problems when users would query the context of the
connection.  This patch fixes this so that the value in
sk_security_struct->peer_sid is only set when the connection is NetLabel based,
otherwise the value is untouched.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[libata] No need for all those arch libata-portmap.h headers
Jeff Garzik [Mon, 25 Sep 2006 19:33:09 +0000]
[libata] No need for all those arch libata-portmap.h headers

They all contain the same thing.  Instead, have a single generic one in
include/asm-generic, and permit an arch to override as needed.

Signed-off-by: Jeff Garzik <jeff@garzik.org>

14 years ago[TCP]: make cubic the default
Stephen Hemminger [Mon, 25 Sep 2006 03:13:03 +0000]
[TCP]: make cubic the default

Change default congestion control used from BIC to the newer CUBIC
which it the successor to BIC but has better properties over long delay links.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TCP]: default congestion control menu
Stephen Hemminger [Mon, 25 Sep 2006 03:11:58 +0000]
[TCP]: default congestion control menu

Change how default TCP congestion control is chosen. Don't just use
last installed module, instead allow selection during configuration,
and make sure and use the default regardless of load order.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[ATM] he: Fix __init/__devinit conflict
Roland Dreier [Mon, 25 Sep 2006 03:09:33 +0000]
[ATM] he: Fix __init/__devinit conflict

he_init_one() is declared __devinit, but calls lots of init functions
that are marked __init.  However, if CONFIG_HOTPLUG is enabled,
__devinit functions go into normal .text, which leads to

    WARNING: drivers/atm/he.o - Section mismatch: reference to .init.text: from .text between 'he_start' (at offset 0x2130) and 'he_service_tbrq'

Fix this by changing the __init functions to __devinit.

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[PATCH] pata_pdc2027x iomem annotations
Al Viro [Mon, 25 Sep 2006 01:57:57 +0000]
[PATCH] pata_pdc2027x iomem annotations

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

14 years ago[PATCH] fix idiocy in asd_init_lseq_mdp()
Al Viro [Mon, 25 Sep 2006 01:57:22 +0000]
[PATCH] fix idiocy in asd_init_lseq_mdp()

To whoever had written that code:

 a) priority of >> is higher than that of &
 b) priority of typecast is higher than that of any binary operator
 c) learn the fscking C

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

14 years ago[PATCH] SCSI gfp_t annotations
Al Viro [Mon, 25 Sep 2006 01:55:40 +0000]
[PATCH] SCSI gfp_t annotations

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

14 years ago[PATCH] wrong thing iounmapped (qla3xxx)
Al Viro [Mon, 25 Sep 2006 01:54:46 +0000]
[PATCH] wrong thing iounmapped (qla3xxx)

ql3xxx_probe() does ioremap and stores result in ->mem_map_registers.
On failure exit it does iounmap() of the same thing.

OTOH, ql3xxx_remove() does iounmap() of ->mmap_virt_base which is
 (a) never assigned and
 (b) never used other than in that iounmap() call.

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

14 years ago[PATCH] qla3xxx iomem annotations
Al Viro [Mon, 25 Sep 2006 01:53:53 +0000]
[PATCH] qla3xxx iomem annotations

the driver is still shite, though...

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

14 years ago[PATCH] Revert ABI-breaking change in /proc
Matthew Wilcox [Mon, 25 Sep 2006 02:22:52 +0000]
[PATCH] Revert ABI-breaking change in /proc

Some user tools parse /proc/scsi/scsi, so we can't yet change the names.
Change the existing ones back to their old names, and add an admonition
to not make the same mistake that I did.

Andrew Morton reports that this was breaking YDL 4.1 userspace.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6
David S. Miller [Mon, 25 Sep 2006 02:29:57 +0000]
Merge /pub/scm/linux/kernel/git/acme/net-2.6

14 years ago[NETFILTER]: Add dscp,DSCP headers to header-y
Yasuyuki Kozakai [Mon, 25 Sep 2006 02:28:47 +0000]
[NETFILTER]: Add dscp,DSCP headers to header-y

This patch adds xt_dscp.h and xt_DSCP.h to the kernel headers which are
exported via 'make headers_install'. These are necessary for userspace
to add rules using dscp match and DSCP target.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>