linux-2.6.git
15 years ago[PATCH] x86_64: Clean up copy_*_user
Andi Kleen [Wed, 11 Jan 2006 21:44:45 +0000 (22:44 +0100)]
[PATCH] x86_64: Clean up copy_*_user

- Remove optimization for old B stepping Opteron
- Make the fast path for copies with a multiple of eight length faster.
- Minor instruction rearrangement to hopefully avoid a pipeline
stall or two.
- Add comment about errata to consider.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Use function pointers to call DMA mapping functions
Muli Ben-Yehuda [Wed, 11 Jan 2006 21:44:42 +0000 (22:44 +0100)]
[PATCH] x86_64: Use function pointers to call DMA mapping functions

AK: I hacked Muli's original patch a lot and there were a lot
of changes - all bugs are probably to blame on me now.
There were also some changes in the fall back behaviour
for swiotlb - in particular it doesn't try to use GFP_DMA
now anymore. Also all DMA mapping operations use the
same core dma_alloc_coherent code with proper fallbacks now.
And various other changes and cleanups.

Known problems: iommu=force swiotlb=force together breaks
                needs more testing.

This patch cleans up x86_64's DMA mapping dispatching code. Right now
we have three possible IOMMU types: AGP GART, swiotlb and nommu, and
in the future we will also have Xen's x86_64 swiotlb and other HW
IOMMUs for x86_64. In order to support all of them cleanly, this
patch:

- introduces a struct dma_mapping_ops with function pointers for each
  of the DMA mapping operations of gart (AMD HW IOMMU), swiotlb
  (software IOMMU) and nommu (no IOMMU).

- gets rid of:

  if (swiotlb)
      return swiotlb_xxx();

- PCI_DMA_BUS_IS_PHYS is now checked against the dma_ops being set
This makes swiotlb faster by avoiding double copying in some cases.

Signed-Off-By: Muli Ben-Yehuda <mulix@mulix.org>
Signed-Off-By: Jon D. Mason <jdmason@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Reject SRAT tables that don't cover all memory
Andi Kleen [Wed, 11 Jan 2006 21:44:39 +0000 (22:44 +0100)]
[PATCH] x86_64: Reject SRAT tables that don't cover all memory

Broken BIOS on Iwill 8way systems reports these and it causes the bootmem
allocator to crash. Add a sanity check if all the PXMs in the
SRAT table cover all memory as reported by e820. If the sanity
check fails the SRAT is rejected and the code will fall back
to discover the NUMA topology using the K8 northbridge registers
when applicable.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Add idle notifiers
Andi Kleen [Wed, 11 Jan 2006 21:44:36 +0000 (22:44 +0100)]
[PATCH] x86_64: Add idle notifiers

This adds a new notifier chain that is called with IDLE_START
when a CPU goes idle and IDLE_END when it goes out of idle.
The context can be idle thread or interrupt context.

Since we cannot rely on MONITOR/MWAIT existing the idle
end check currently has to be done in all interrupt
handlers.

They were originally inspired by the similar s390 implementation.

They have a variety of applications:
- They will be needed for CONFIG_NO_IDLE_HZ
- They can be used for oprofile to fix up the missing time
in idle when performance counters don't tick.
- They can be used for better C state management in ACPI
- They could be used for microstate accounting.

This is just infrastructure so far, no users.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Clean up some printks in NUMA code
Andi Kleen [Wed, 11 Jan 2006 21:44:33 +0000 (22:44 +0100)]
[PATCH] x86_64: Clean up some printks in NUMA code

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Fix up coding style in numa.c
Andi Kleen [Wed, 11 Jan 2006 21:44:30 +0000 (22:44 +0100)]
[PATCH] x86_64: Fix up coding style in numa.c

No functional changes

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Fix off by one in IOMMU check
Andi Kleen [Wed, 11 Jan 2006 21:44:27 +0000 (22:44 +0100)]
[PATCH] x86_64: Fix off by one in IOMMU check

Fix off by one when checking if the machine has enougn memory to need IOMMU
This caused the IOMMUs to be needlessly enabled for mem=4G

Based on a patch from Jon Mason

Signed-off-by: jdmason@us.ibm.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Handle missing local APIC timer interrupts on C3 state
Venkatesh Pallipadi [Wed, 11 Jan 2006 21:44:24 +0000 (22:44 +0100)]
[PATCH] x86_64: Handle missing local APIC timer interrupts on C3 state

Whenever we see that a CPU is capable of C3 (during ACPI cstate init), we
disable local APIC timer and switch to using a broadcast from external timer
interrupt (IRQ 0).

Patch below adds the code for x86_64.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386: Handle missing local APIC timer interrupts on C3 state
Venkatesh Pallipadi [Wed, 11 Jan 2006 21:44:21 +0000 (22:44 +0100)]
[PATCH] i386: Handle missing local APIC timer interrupts on C3 state

Whenever we see that a CPU is capable of C3 (during ACPI cstate init), we
disable local APIC timer and switch to using a broadcast from external timer
interrupt (IRQ 0). This is needed because Intel CPUs stop the local
APIC timer in C3.  This is currently only enabled for Intel CPUs.

Patch below adds the code for i386 and also the ACPI hunk.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386/x86-64: Remove sub jiffy profile timer support
Venkatesh Pallipadi [Wed, 11 Jan 2006 21:44:18 +0000 (22:44 +0100)]
[PATCH] i386/x86-64: Remove sub jiffy profile timer support

Remove the finer control of local APIC timer. We cannot provide a sub-jiffy
control like this when we use broadcast from external timer in place of
local APIC. Instead of removing this only on systems that may end up using
broadcast from external timer (due to C3), I am going the
"I'm feeling lucky" way to remove this fully. Basically, I am not sure about
usefulness of this code today. Few other architectures also don't seem to
support this today.

If you are using profiling and fine grained control and don't like this going
away in normal case, yell at me right now.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Report hardware breakpoints in user space when triggered by the kernel
John Blackwood [Wed, 11 Jan 2006 21:44:15 +0000 (22:44 +0100)]
[PATCH] x86_64: Report hardware breakpoints in user space when triggered by the kernel

I would like to throw out a suggestion for a possible change in the way that
the debug register traps are handled in do_debug() when the trap occurs
in kernel-mode.

In the x86_64 version of do_debug(), the code will skip around sending
a SIGTRAP to the current task if the trap occurred while in kernel mode.

On the i386-side of things, if the access happens to occur in kernel mode
(say during a read(2) of user's buffer that matches the address of a
debug register trap), then the do_debug() routine for i386 will go ahead
and call send_sigtrap() and send the SIGTRAP signal.  The send_sigtrap()
code will also set the info.si_addr to NULL in this case (even though I
don't understand why, since the SIGTRAP siginfo processing doesn't use
the si_addr field...).

So I would like to suggest that the x86_64 do_debug() routine also
follow this type of behavior and have it go ahead and send the
SIGTRAP signal to the current task, even if the debug register trap
happens to have occurred in kernel mode.  I have taken a stab at
a patch for this change below.  (It includes the i386-ish change
for setting si_addr to NULL when the trap occurred in kernel mode.)

It seems like a useful feature to be able to 'watch' a user location that
might also be modified in the kernel via a system service call, and have the
debugger report that information back to the user, rather than to just
silently ignore the trap.

Additionally, I realize that users that pull in a kernel debugger such as
KGDB into their kernel might want to remove this change below when they add
in KGDB support.  However, they could alternatively look at the current
task's thread.debugreg[] values to see if the trap occurred due to KGDB
or instead because of a user-space debugger trap, and still honor the
user SIGTRAP processing (instead of the KGDB breakpoint processing)
if the trap matches up with the thread.debugreg[] registers.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: "extern inline" -> "static inline" in pgtable.h
Adrian Bunk [Wed, 11 Jan 2006 21:44:12 +0000 (22:44 +0100)]
[PATCH] x86_64: "extern inline" -> "static inline" in pgtable.h

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Convert page fault error codes to symbolic constants.
Andi Kleen [Wed, 11 Jan 2006 21:44:09 +0000 (22:44 +0100)]
[PATCH] x86_64: Convert page fault error codes to symbolic constants.

Much better to deal with these than with the magic numbers.

And remove the comment describing the bits - kernel source
is no replacement for an architecture manual.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Implement is_compat_task the right way
Andi Kleen [Wed, 11 Jan 2006 21:44:06 +0000 (22:44 +0100)]
[PATCH] x86_64: Implement is_compat_task the right way

By setting a flag during a 32bit system call only

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Implement compat code for sg driver SG_GET_REQUEST_TABLE ioctl
Andi Kleen [Wed, 11 Jan 2006 21:44:03 +0000 (22:44 +0100)]
[PATCH] x86_64: Implement compat code for sg driver SG_GET_REQUEST_TABLE ioctl

Apparently helps with some non SANE scanner drivers.

Cc: axboe@suse.de
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Remove unnecessary case from the page fault handler
Andi Kleen [Wed, 11 Jan 2006 21:44:00 +0000 (22:44 +0100)]
[PATCH] x86_64: Remove unnecessary case from the page fault handler

Don't need to do the vmalloc check for the module range because its
PML4 is shared with the kernel text.

Also removed an unnecessary TLB flush.

Pointed out by Jan Beulich

Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Align and pad x86_64 GDT on page boundary
Ravikiran G Thirumalai [Wed, 11 Jan 2006 21:43:57 +0000 (22:43 +0100)]
[PATCH] x86_64: Align and pad x86_64 GDT on page boundary

This patch is on the same lines as Zachary Amsden's i386 GDT page alignemnt
patch in -mm, but for x86_64.

Patch to align and pad x86_64 GDT on page boundries.

[AK: some minor cleanups and fixed incorrect TLS initialization
in CPU init.]

Signed-off-by: Nippun Goel <nippung@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Allow compilation on a 32bit biarch toolchain
Andi Kleen [Wed, 11 Jan 2006 21:43:54 +0000 (22:43 +0100)]
[PATCH] x86_64: Allow compilation on a 32bit biarch toolchain

This might help on distributions that use a 32bit biarch compiler.

First pass -m64 by default.

Secondly add some more .code32s because at least the Ubuntu biarch
32bit as called by gcc doesn't seem to handle -m64 -m32 as generated
by the Makefile without such assistance.

And finally make sure the linker script can be preprocessed
with a 32bit cpp.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Make udelay more accurate
Ross Biro [Wed, 11 Jan 2006 21:43:51 +0000 (22:43 +0100)]
[PATCH] x86_64: Make udelay more accurate

The attempt to avoid overflow in __delay caused varying precision
on different CPUs depending on differences in the CPU speed.

We should be able to do this multiplication with out overflowing
provided the
cpu is running at less than about 128 GHz.  xloops < 20000 * 0x10c6.
loops_per_jiffy * HZ <= cpu_clock_speed.  So if the cpu clock speed
< 2^64/(20000 * 0x10c6) = 2^64/ 51E6CC0 < 2^64/2^27 = 2^37 = 128G we
will not overflow the calculation.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Return -1 for unknown PCI bus affinity
Andi Kleen [Wed, 11 Jan 2006 21:43:48 +0000 (22:43 +0100)]
[PATCH] x86_64: Return -1 for unknown PCI bus affinity

When we don't know the node a PCI bus is connected to return -1.
This matches the generic code.

Noticed by Ravikiran G Thirumalai <kiran@scalex86.org>

Cc: Ravikiran G Thirumalai <kiran@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Handle unknown node (-1) in alloc_pages_node
Andi Kleen [Wed, 11 Jan 2006 21:43:45 +0000 (22:43 +0100)]
[PATCH] x86_64: Handle unknown node (-1) in alloc_pages_node

Following kmalloc_node.

Needed for another patch to return -1 for unknown nodes in x86-64.

Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: kiran@scalex86.org
Signed-off-by: Andi Kleen <ak@suse.de>
[ Changed 0 to numa_node_id() on suggestion by Christoph Lameter ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Validate SLIT table
Andi Kleen [Wed, 11 Jan 2006 21:43:42 +0000 (22:43 +0100)]
[PATCH] x86_64: Validate SLIT table

A lot of Opteron BIOS just pass 10 in all SLIT entries (10 is the
normalized unit). This is actually worse than the default heuristic
because it leads to pci_distance not knowing the difference between
local and remote nodes anymore. This messes up some NUMA
heuristics in generic code.

In this case it's better to fall back to the default heuristic
which just does nodea == nodeb ? 10 : 20.

This patch does some basic sanity checking on the SLIT and only accepts
the SLIT when it passes.

Invariants enforced are:
- Node to itself shall be 10
- Any other distance shouldn't be 10
- Distances smaller than 10 are illegal

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Fix off by one in acpi table mapping
Andi Kleen [Wed, 11 Jan 2006 21:43:39 +0000 (22:43 +0100)]
[PATCH] x86_64: Fix off by one in acpi table mapping

And fix the test to include the size

Noticed by Vivek Goyal

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Fix 64bit FXSAVE encoding
Jan Beulich [Wed, 11 Jan 2006 21:43:36 +0000 (22:43 +0100)]
[PATCH] x86_64: Fix 64bit FXSAVE encoding

The separation of the rex64 prefix (on fxsave/fxrstor) by way of using
a semicolon resulted in the prefix not always taking effect (because
when extended registers are needed for addressing, another rex prefix
would have been generated by the compiler), thus (depending on the
build) resulting in eventually getting 32-bit saves and/or restores.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Generalize DMI and enable for x86-64
Andi Kleen [Wed, 11 Jan 2006 21:43:33 +0000 (22:43 +0100)]
[PATCH] x86_64: Generalize DMI and enable for x86-64

Some people need it now on 64bit so reuse the i386 code for
x86-64. This will be also useful for future bug workarounds.

It is a bit simplified there because there is no need
to do it very early on x86-64. This means it doesn't need
early ioremap et.al. We run it as a core initcall right now.

I hope it's not needed for early setup.

I added a general CONFIG_DMI symbol in case IA64 or someone
else wants to reuse the code later too.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Remove bogus file in arch/x86_64/pci
Andi Kleen [Wed, 11 Jan 2006 21:43:30 +0000 (22:43 +0100)]
[PATCH] x86_64: Remove bogus file in arch/x86_64/pci

This was a backup file that somehow made it into the official
tree. Never used for anything. Remove.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Add missing newline in IOMMU error message
Andi Kleen [Wed, 11 Jan 2006 21:43:27 +0000 (22:43 +0100)]
[PATCH] x86_64: Add missing newline in IOMMU error message

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: fls in asm for x86_64
Stephen Hemminger [Wed, 11 Jan 2006 21:43:24 +0000 (22:43 +0100)]
[PATCH] x86_64: fls in asm for x86_64

Use single instruction for find largest set bit on x86_64.

[Updated by Jan Beulich to fix wrong asm constraints in original
patch -AK]

Cc: jbeulich@novell.com
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: fix page fault from show_trace()
Jan Beulich [Wed, 11 Jan 2006 21:43:21 +0000 (22:43 +0100)]
[PATCH] x86_64: fix page fault from show_trace()

The introduction of call_softirq switching to the interrupt stack several
releases earlier resulted in a problem with the code in show_trace, which
assumes that it can pick the previous stack pointer from the end of the
interrupt stack.

Cc: Andi Kleen <ak@muc.de>
Cc: Arjan van de Ven <arjanv@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: fix single step handling for 32bit processes
Peter Beutner [Wed, 11 Jan 2006 21:43:18 +0000 (22:43 +0100)]
[PATCH] x86_64: fix single step handling for 32bit processes

Be more careful with TF handling to fix some copy protection codes in wine

patch originally for i386 by Linus, then ported to x86_64 by Andi Kleen
see: [PATCH] x86_64: Some fixes for single step handling
commit: be61bff789fe44bfb6d9282d8f7eccc860bdcfb6

But it was never applied to the ia32 emulation code which breaks some
copy-protection schemes under wine when running on x86_64.

Signed-off-by: Peter Beutner <p.beutner@gmx.net>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: don't save eflags in x86-64 switch_to()
Benjamin LaHaise [Wed, 11 Jan 2006 21:43:15 +0000 (22:43 +0100)]
[PATCH] x86_64: don't save eflags in x86-64 switch_to()

As discussed, the flags register on x86-64 is saved and restored by the
assembly code which sets up struct pt_regs, so we do not need to save
and restore it in the inline assembler which already informs gcc that
we're clobbering the flags.  This patch has been sanity booted and works
okay here.

Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386/x86-64: Don't IPI to offline cpus on shutdown
Eric W. Biederman [Wed, 11 Jan 2006 21:43:12 +0000 (22:43 +0100)]
[PATCH] i386/x86-64: Don't IPI to offline cpus on shutdown

So why are we calling smp_send_stop from machine_halt?

We don't.

Looking more closely at the bug report the problem here
is that halt -p is called which triggers not a halt but
an attempt to power off.

machine_power_off calls machine_shutdown which calls smp_send_stop.

If pm_power_off is set we should never make it out machine_power_off
to the call of do_exit.  So pm_power_off must not be set in this case.
When pm_power_off is not set we expect machine_power_off to devolve
into machine_halt.

So how do we fix this?

Playing too much with smp_send_stop is dangerous because it
must also be safe to be called from panic.

It looks like the obviously correct fix is to only call
machine_shutdown when pm_power_off is defined.  Doing
that will make Andi's assumption about not scheduling
true and generally simplify what must be supported.

This turns machine_power_off into a noop like machine_halt
when pm_power_off is not defined.

If the expected behavior is that sys_reboot(LINUX_REBOOT_CMD_POWER_OFF)
becomes sys_reboot(LINUX_REBOOT_CMD_HALT) if pm_power_off is NULL
this is not quite a comprehensive fix as we pass a different parameter
to the reboot notifier and we set system_state to a different value
before calling device_shutdown().

Unfortunately any fix more comprehensive I can think of is not
obviously correct.  The core problem is that there is no architecture
independent way to detect if machine_power will become a noop, without
calling it.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64/i386: Remove preempt disable calls in lowlevel IPI
Zwane Mwaikambo [Wed, 11 Jan 2006 21:43:09 +0000 (22:43 +0100)]
[PATCH] x86_64/i386: Remove preempt disable calls in lowlevel IPI

I noticed that some lowlevel send_IPI_mask helpers had a hotplug/preempt
race whereupon the cpu_online_map was read before disabling preemption;

...
cpumask_t mask = cpu_online_map;
int cpu = get_cpu();
cpu_clear(cpu, mask);
...

But then i realised that there is no need for these lowlevel functions to
be going through all this trouble when all the callers are already made
hotplug/preempt safe.

Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: increase MCE bank counts
Shaohua Li [Wed, 11 Jan 2006 21:43:06 +0000 (22:43 +0100)]
[PATCH] x86_64: increase MCE bank counts

There is one CPU here whose MCE bank count is 6. This patch increases
x86_64's MCE bank count.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: another mb() for smpboot.c
Benjamin LaHaise [Wed, 11 Jan 2006 21:43:03 +0000 (22:43 +0100)]
[PATCH] x86_64: another mb() for smpboot.c

The following is probably a good idea given that the atomic_set() isn't
a barrier here either.

Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Move int 3 handler to debug stack and allow to increase it.
Jan Beulich [Wed, 11 Jan 2006 21:43:00 +0000 (22:43 +0100)]
[PATCH] x86_64: Move int 3 handler to debug stack and allow to increase it.

This
- switches the INT3 handler to run on an IST stack (to cope with
  breakpoints set by a kernel debugger on places where the kernel's
  %gs base hasn't been set up, yet); the IST stack used is shared with
  the INT1 handler's
[AK: this also allows setting a kprobe on the interrupt/exception entry
points]
- allows nesting of INT1/INT3 handlers so that one can, with a kernel
  debugger, debug (at least) the user-mode portions of the INT1/INT3
  handling; the nesting isn't actively enabled here since a kernel-
  debugger-free kernel doesn't need it

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Don't confuse apic=... command line option with apic
Andi Kleen [Wed, 11 Jan 2006 21:42:57 +0000 (22:42 +0100)]
[PATCH] x86_64: Don't confuse apic=... command line option with apic

Previously apic was foced with apic=logopt was specified.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Dont't disable early PCI scan with apic
Andi Kleen [Wed, 11 Jan 2006 21:42:54 +0000 (22:42 +0100)]
[PATCH] x86_64: Dont't disable early PCI scan with apic

It might be still needed for non APIC related issues.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386/x86-64: Update AMD CPUID flags
Andi Kleen [Wed, 11 Jan 2006 21:42:51 +0000 (22:42 +0100)]
[PATCH] i386/x86-64: Update AMD CPUID flags

Print bits for RDTSCP, SVM, CR8-LEGACY.

Also now print power flags on i386 like x86-64 always did.
This will add a new line in the 386 cpuinfo, but that shouldn't
be an issue - did that in the past too and I haven't heard
of any breakage.

I shrunk some of the fields in the i386 cpuinfo_x86 to chars
to make up for the new int "x86_power" field. Overall it's
smaller than before.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Use X86_FEATURE_CONSTANT_TSC now to clean up Intel speedstep drivers
Andi Kleen [Wed, 11 Jan 2006 21:42:48 +0000 (22:42 +0100)]
[PATCH] x86_64: Use X86_FEATURE_CONSTANT_TSC now to clean up Intel speedstep drivers

They previously tried to figure this out on their own.

Suggested by Venkatesh.

Cc: venkatesh.pallipadi@intel.com
Cc: davej@redhat.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386/x86-64: Generalize X86_FEATURE_CONSTANT_TSC flag
Andi Kleen [Wed, 11 Jan 2006 21:42:45 +0000 (22:42 +0100)]
[PATCH] i386/x86-64: Generalize X86_FEATURE_CONSTANT_TSC flag

Define it for i386 too.

This is a synthetic flag that signifies that the CPU's TSC runs
at a constant P state invariant frequency.

Fix up the logic on x86-64/i386 to set it on all known CPUs.
Use the AMD defined bit to set it on future AMD CPUs.

Cc: venkatesh.pallipadi@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Remove enable/disable_hlt
Andi Kleen [Wed, 11 Jan 2006 21:42:42 +0000 (22:42 +0100)]
[PATCH] x86_64: Remove enable/disable_hlt

Was only used by the floppy driver to work around some ancient
hardware bug that should never occur on any 64bit system.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Add documentation for CPU hotplug ACPI extension
Andi Kleen [Wed, 11 Jan 2006 21:42:39 +0000 (22:42 +0100)]
[PATCH] x86_64: Add documentation for CPU hotplug ACPI extension

Cc: len.brown@intel.com, ashok.ray@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Don't reserve hotplug CPUs by default
Andi Kleen [Wed, 11 Jan 2006 21:42:35 +0000 (22:42 +0100)]
[PATCH] x86_64: Don't reserve hotplug CPUs by default

Most users don't need it so no need to waste memory.
This means an user has to specify the appropiate number of
hotplug CPUs on the command line with additional_cpus=...
or fix their BIOS to follow the convention in
Documentation/x86-64/cpu-hotplug-spec

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] i386/x86-64: Use input/output dependencies for bitops
Andi Kleen [Wed, 11 Jan 2006 21:42:32 +0000 (22:42 +0100)]
[PATCH] i386/x86-64: Use input/output dependencies for bitops

Noticed by Andreas Schwab

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: No need to remove NT during CPU setup
Andi Kleen [Wed, 11 Jan 2006 21:42:29 +0000 (22:42 +0100)]
[PATCH] x86_64: No need to remove NT during CPU setup

head.S already clears EFLAGS completely. Following an i386 patch from
Zachary Amsden.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Minor GFP_DMA32 comment fix
Andi Kleen [Wed, 11 Jan 2006 21:42:26 +0000 (22:42 +0100)]
[PATCH] x86_64: Minor GFP_DMA32 comment fix

Pretty obvious

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Adjust page fault handling
Jan Beulich [Wed, 11 Jan 2006 21:42:23 +0000 (22:42 +0100)]
[PATCH] x86_64: Adjust page fault handling

Adjust page fault protection error check before considering it to be
a vmalloc synchronization candidate.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Remove unprotected iret
Jan Beulich [Wed, 11 Jan 2006 21:42:20 +0000 (22:42 +0100)]
[PATCH] x86_64: Remove unprotected iret

Make sure no iret can fault without attached recovery code.
Cannot happen in the normal case, but might be useful
with kernel debuggers

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Clean up double fault handling
Jan Beulich [Wed, 11 Jan 2006 21:42:17 +0000 (22:42 +0100)]
[PATCH] x86_64: Clean up double fault handling

Since a double fault always implies that kernel data structures are
corrupt, this fault should neither be handed to user mode handling,
nor should the handler allow resuming the faulting code stream (since
architecturally this isn't a fault, but an abort).

Note that this slightly depends on the previously submitted patch
adjusting the prototype of notify_die() (a compiler warning will result
without that other patch).

AK: Removed obsolete CONFIG_CHECKING code, added comments

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: make trap information available to die notification handlers
Jan Beulich [Wed, 11 Jan 2006 21:42:14 +0000 (22:42 +0100)]
[PATCH] x86_64: make trap information available to die notification handlers

This adjusts things so that handlers of the die() notifier will have
sufficient information about the trap currently being handled. It also
adjusts the notify_die() prototype to (again) match that of i386.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Removing unused function die_if_kernel().
Jan Beulich [Wed, 11 Jan 2006 21:42:11 +0000 (22:42 +0100)]
[PATCH] x86_64: Removing unused function die_if_kernel().

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: fix bound check IDT gate
Jan Beulich [Wed, 11 Jan 2006 21:42:08 +0000 (22:42 +0100)]
[PATCH] x86_64: fix bound check IDT gate

Other than apparently commonly assumed, the bound instruction does not
require the corresponding IDT entry to have DPL 3.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Separate CONFIG_UNWIND_INFO from CONFIG_DEBUG_INFO
Jan Beulich [Wed, 11 Jan 2006 21:42:05 +0000 (22:42 +0100)]
[PATCH] x86_64: Separate CONFIG_UNWIND_INFO from CONFIG_DEBUG_INFO

As a follow-up to the introduction of CONFIG_UNWIND_INFO, this
separates the generation of frame unwind information for x86-64 from
that of full debug information.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Support constant TSC feature in future AMD CPUs.
Andi Kleen [Wed, 11 Jan 2006 21:42:02 +0000 (22:42 +0100)]
[PATCH] x86_64: Support constant TSC feature in future AMD CPUs.

Based on the documentation recently posted by Richard Brunner.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: More CFI fixes for 32bit entry code
Jan Beulich [Wed, 11 Jan 2006 21:41:59 +0000 (22:41 +0100)]
[PATCH] x86_64: More CFI fixes for 32bit entry code

Frame unwind information was still incorrect for ia32_ptregs_common
(sorry, my fault), and could be improved for some of the other entry
points.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] x86_64: Update defconfig
Andi Kleen [Wed, 11 Jan 2006 21:41:56 +0000 (22:41 +0100)]
[PATCH] x86_64: Update defconfig

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] lindent rio drivers
Andrew Morton [Wed, 11 Jan 2006 20:17:49 +0000 (12:17 -0800)]
[PATCH] lindent rio drivers

Run all rio files through indent -kr -i8 -bri0 -l255, as requested by Alan.

rioboot.c and rioinit.c were skipped due to worrisome lindent warnings.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] capable/capability.h (arch/)
Randy Dunlap [Wed, 11 Jan 2006 20:17:48 +0000 (12:17 -0800)]
[PATCH] capable/capability.h (arch/)

arch: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] capable/capability.h (net/)
Randy Dunlap [Wed, 11 Jan 2006 20:17:47 +0000 (12:17 -0800)]
[PATCH] capable/capability.h (net/)

net: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] capable/capability.h (fs/)
Randy Dunlap [Wed, 11 Jan 2006 20:17:46 +0000 (12:17 -0800)]
[PATCH] capable/capability.h (fs/)

fs: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] move capable() to capability.h
Randy.Dunlap [Wed, 11 Jan 2006 20:17:46 +0000 (12:17 -0800)]
[PATCH] move capable() to capability.h

- Move capable() from sched.h to capability.h;

- Use <linux/capability.h> where capable() is used
(in include/, block/, ipc/, kernel/, a few drivers/,
mm/, security/, & sound/;
many more drivers/ to go)

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uninline capable()
Ingo Molnar [Wed, 11 Jan 2006 20:17:45 +0000 (12:17 -0800)]
[PATCH] uninline capable()

Uninline capable().  Saves 2K of kernel text on a generic .config, and 1K on a
tiny config.  In addition it makes the use of capable more consistent between
CONFIG_SECURITY and !CONFIG_SECURITY

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] ipmi: use CONFIG_DMI instead of CONFIG_X86
Matt Domsch [Wed, 11 Jan 2006 20:17:44 +0000 (12:17 -0800)]
[PATCH] ipmi: use CONFIG_DMI instead of CONFIG_X86

With Andi Kleen's x86_64 patch to use DMI, and my ia64 to use DMI, there is
now a new CONFIG_DMI option which takes the place of CONFIG_X86 to denote
the availability of the DMI functions.  Make the IPMI driver use CONFIG_DMI
instead.

Tested on ia64 2.6.15 kernel plus the previous patch, on a Dell PowerEdge
7250 Itanium2 server, and it now autodetects the IPMI KCS driver as
expected.

Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] remove unused out_pio label in i810_audio
Jesper Juhl [Wed, 11 Jan 2006 20:17:43 +0000 (12:17 -0800)]
[PATCH] remove unused out_pio label in i810_audio

sound/oss/i810_audio.c:3431: warning: label `out_pio' defined but not used

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] kprobes: fix race in recovery of reentrant probe
Keshavamurthy Anil S [Wed, 11 Jan 2006 20:17:42 +0000 (12:17 -0800)]
[PATCH] kprobes: fix race in recovery of reentrant probe

There is a window where a probe gets removed right after the probe is hit
on some different cpu.  In this case probe handlers can't find a matching
probe instance related to break address.  In this case we need to read the
original instruction at break address to see if that is not a break/int3
instruction and recover safely.

Previous code had a bug where we were not checking for the above race in
case of reentrant probes and the below patch fixes this race.

Tested on IA64, Powerpc, x86_64.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] kprobes: fix unloading of self probed module
Keshavamurthy Anil S [Wed, 11 Jan 2006 20:17:41 +0000 (12:17 -0800)]
[PATCH] kprobes: fix unloading of self probed module

When a kprobes modules is written in such a way that probes are inserted on
itself, then unload of that moudle was not possible due to reference
couning on the same module.

The below patch makes a check and incrementes the module refcount only if
it is not a self probed module.

We need to allow modules to probe themself for kprobes performance
measurements

This patch has been tested on several x86_64, ppc64 and IA64 architectures.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] reiserfs: fix assertion failure in reiserfs+journaled quotas
Jan Kara [Wed, 11 Jan 2006 20:17:40 +0000 (12:17 -0800)]
[PATCH] reiserfs: fix assertion failure in reiserfs+journaled quotas

Sometimes we call do_journal_end() with t_refcount == 0.  If quota is
turned on and we happen to have some inode with preallocation bad things
happen as we try to use the current handle for quota operations.  Checks
for t_refcount in journal_begin() fail and we Oops.  We raise t_refcount to
make those checks happy.  We should not cause any bad as all the needed
quota blocks should be already attached to the transaction (they were
attached to the transaction when we allocated those preallocation blocks).

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] synclink_gt remove unnecessary page alignment
Paul Fulghum [Wed, 11 Jan 2006 20:17:39 +0000 (12:17 -0800)]
[PATCH] synclink_gt remove unnecessary page alignment

Remove unnecessary and incorrectly implemented page alignment of register
base address before calling ioremap()

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] random: get rid of sparse warning
Stephen Hemminger [Wed, 11 Jan 2006 20:17:38 +0000 (12:17 -0800)]
[PATCH] random: get rid of sparse warning

Get rid of bogus extern attribute that causes sparse warning.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] MAINTAINERS: remove dead project
Alan Cox [Wed, 11 Jan 2006 20:17:37 +0000 (12:17 -0800)]
[PATCH] MAINTAINERS: remove dead project

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] kdump: vmcore compilation warning fix
Vivek Goyal [Wed, 11 Jan 2006 20:17:37 +0000 (12:17 -0800)]
[PATCH] kdump: vmcore compilation warning fix

o fs/proc/vmcore.c compilation gives warnings on ppc64. The reason being
  that u64 is defined as unsigned long hence u64* is not same as loff_t*
  and compiler cribs.

o Changed the parameter type to u64* instead of loff_t* to resolve the
  conflict.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] cs89x0: Fix the Kconfig help text
Jean Delvare [Wed, 11 Jan 2006 20:17:36 +0000 (12:17 -0800)]
[PATCH] cs89x0: Fix the Kconfig help text

Fix the help text of the cs89x0 network driver Kconfig entry.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] cs89x0: fix setting of ALLOW_DMA
Lennert Buytenhek [Wed, 11 Jan 2006 20:17:34 +0000 (12:17 -0800)]
[PATCH] cs89x0: fix setting of ALLOW_DMA

There's an ifdef in cs89x0.c that seems to have been the wrong way round
since it was merged (and noone seems to have noticed) -- the IXDP2x01
doesn't support ISA-style DMA, but when building for IXDP2x01, cs89x0's
ALLOW_DMA is set to 1, and when building for another platform, ALLOW_DMA is
set to 0.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] tclk: fix typos, exclamation mark frenzy and missing device id on messages
Alan Cox [Wed, 11 Jan 2006 20:17:33 +0000 (12:17 -0800)]
[PATCH] tclk: fix typos, exclamation mark frenzy and missing device id on messages

I sent this out a couple of months ago and the driver author said it
he'd merge it. Nothing has happened since so I'm submitting it directly.

No functionality changes just texts.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] Allow reading CMOS day of week register
Alan Cox [Wed, 11 Jan 2006 20:17:32 +0000 (12:17 -0800)]
[PATCH] Allow reading CMOS day of week register

Someone wanted access to this usually unused (and unused by Linux) value
for the day of week.  Existing kernels have the field in the struct but
return 0 always.  This updates the kernel to fill in the field.  The usual
case of 'not set' conveniently is 0.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] ext3: fix documentation of online resizing
Tore Anderson [Wed, 11 Jan 2006 20:17:31 +0000 (12:17 -0800)]
[PATCH] ext3: fix documentation of online resizing

Undocument the non-working resize= mount option in ext3, and add some
references to the ext2resize package instead, which appears to be the only
proper way of doing online resizing of ext3 filesystems.

Signed-off-by: Tore Anderson <tore@fud.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] doc: refer to kdump in oops-tracing.txt
Akinobu Mita [Wed, 11 Jan 2006 20:17:31 +0000 (12:17 -0800)]
[PATCH] doc: refer to kdump in oops-tracing.txt

Kdump has been merged and supported on several architectures.  It is better
to encourage to use kdump rather than non standard kernel crash dump
patches.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] kdump: add dmesg gdbmacro into document
Akinobu Mita [Wed, 11 Jan 2006 20:17:30 +0000 (12:17 -0800)]
[PATCH] kdump: add dmesg gdbmacro into document

Add gdb macro which print the kernel ring buffer into kdump docs

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: kill an unused variable
Jeff Dike [Wed, 11 Jan 2006 20:17:29 +0000 (12:17 -0800)]
[PATCH] uml: kill an unused variable

The HDIO_GETGEO patch left an unused variable in the UML block driver.  This
gets rid of it.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: fix debug output on x86_64
Jeff Dike [Wed, 11 Jan 2006 20:17:28 +0000 (12:17 -0800)]
[PATCH] uml: fix debug output on x86_64

The debug-stub patch was broken on x86_64 because it thinks the frame size
there is 168 words.  In reality, it is 168 bytes, and using HOST_FRAME_SIZE,
which is expressed in consistent units across architectures, fixes this.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: eliminate doubled boot output
Jeff Dike [Wed, 11 Jan 2006 20:17:28 +0000 (12:17 -0800)]
[PATCH] uml: eliminate doubled boot output

CON_PRINTBUFFER was a bad idea for the mconsole console.  It causes the boot
output to be printed twice.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: revert compile-time option checking
Jeff Dike [Wed, 11 Jan 2006 20:17:27 +0000 (12:17 -0800)]
[PATCH] uml: revert compile-time option checking

Undo the previous no-modes patch since Adrian Bunk sent in a kbuild way of
doing the same thing.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: update Kconfig help
Jeff Dike [Wed, 11 Jan 2006 20:17:26 +0000 (12:17 -0800)]
[PATCH] uml: update Kconfig help

The MODE_TT help was a little outdated.  This updates it in light of the
existence of skas0 mode.  It's also turned off by default since it is mostly
obsoleted by skas0 mode.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] uml: fix missing KBUILD_BASENAME
Jeff Dike [Wed, 11 Jan 2006 20:17:23 +0000 (12:17 -0800)]
[PATCH] uml: fix missing KBUILD_BASENAME

2.6.15-mm1 caused kernel-offsets.c to stop compiling with a syntax error in a
header.  The problem was with KBUILD_BASENAME, which didn't get a definition
with the by-hand compilation in the main UML Makefile.

This was OK before since the expansion was syntactically the same as the
KBUILD_BASENAME token.  With -mm1, the expansion is now a quote-delimited
string, so there needs to be a definition of it.

Since kernel-offsets.c is basically the same as other arches' asm-offsets.c,
and those seem to build OK, this patch turns kernel-offsets.c into
asm-offsets.c.  kernel-offsets.c is in arch/um/sys-$(SUBARCH), i.e.  sys-i386
and sys-x86_64, while kbuild expects it to be in arch/um/kernel.
kernel-offsets.c is moved to
arch/um/include/sysdep-$(SUBARCH)/kernel-offsets.h, which is included by
arch/um/kernel/asm-offsets.c.  With that, include/asm-um/asm-offsets.h is
generated automatically.  kernel-offsets.h continues to exist because it needs
to be accessible to userspace UML code, and include/asm-um isn't.  So, a
symlink is made from arch/um/include/kernel-offsets.h to
include/asm-um/asm-offsets.h.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] include/asm-h8300/page.h: remove unused KTHREAD_SIZE #define
Adrian Bunk [Wed, 11 Jan 2006 20:17:20 +0000 (12:17 -0800)]
[PATCH] include/asm-h8300/page.h: remove unused KTHREAD_SIZE #define

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] mm: gfp_atomic comments
Paul Jackson [Wed, 11 Jan 2006 20:17:19 +0000 (12:17 -0800)]
[PATCH] mm: gfp_atomic comments

Clarify in comments that GFP_ATOMIC means both "don't sleep" and "use
emergency pools", hence both ALLOC_HARDER and ALLOC_HIGH.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[PATCH] Restore KERN_EMERG to each line printed by bad_page
Hugh Dickins [Wed, 11 Jan 2006 20:17:18 +0000 (12:17 -0800)]
[PATCH] Restore KERN_EMERG to each line printed by bad_page

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 12 Jan 2006 01:06:47 +0000 (17:06 -0800)]
Merge /pub/scm/linux/kernel/git/davem/net-2.6

15 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 12 Jan 2006 01:06:31 +0000 (17:06 -0800)]
Merge /pub/scm/linux/kernel/git/davem/sparc-2.6

15 years ago[PKT_SCHED] net/sched/Kconfig: fix typo in NET_EMATCH_META description
Adrian Bunk [Thu, 12 Jan 2006 00:40:30 +0000 (16:40 -0800)]
[PKT_SCHED] net/sched/Kconfig: fix typo in NET_EMATCH_META description

Noted by Matt LaPlante <webmaster@cyberdogtech.com>.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[PKT_SCHED] ematch: Remove bogus include.
Evgeniy Polyakov [Thu, 12 Jan 2006 00:13:46 +0000 (16:13 -0800)]
[PKT_SCHED] ematch: Remove bogus include.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[NET]: Fix diverter build.
Evgeniy Polyakov [Thu, 12 Jan 2006 00:12:41 +0000 (16:12 -0800)]
[NET]: Fix diverter build.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[NET]: Remove more unneeded typecasts on *malloc()
Kris Katterjohn [Wed, 11 Jan 2006 23:56:43 +0000 (15:56 -0800)]
[NET]: Remove more unneeded typecasts on *malloc()

This removes more unneeded casts on the return value for kmalloc(),
sock_kmalloc(), and vmalloc().

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[IPV6]: Avoid calling ip6_xmit() with NULL sk
David Woodhouse [Wed, 11 Jan 2006 23:53:04 +0000 (15:53 -0800)]
[IPV6]: Avoid calling ip6_xmit() with NULL sk

The ip6_xmit() function now assumes that its sk argument is non-NULL,
which isn't currently true when TCPv6 code is sending RST or ACK
packets. This fixes that code to use a socket of its own for sending
such packets, as TCPv4 does. (Thanks Andi for the pointer).

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[NETFILTER]: ip_ct_proto_gre_fini() cannot be __exit
David S. Miller [Wed, 11 Jan 2006 23:39:14 +0000 (15:39 -0800)]
[NETFILTER]: ip_ct_proto_gre_fini() cannot be __exit

It is invoked from failures paths of __init code.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[NET]: Some more missing include/etherdevice.h includes
David S. Miller [Wed, 11 Jan 2006 23:38:28 +0000 (15:38 -0800)]
[NET]: Some more missing include/etherdevice.h includes

For compare_ether_addr()

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[PATCH] new tty buffering access fix
Paul Fulghum [Wed, 11 Jan 2006 23:51:48 +0000 (17:51 -0600)]
[PATCH] new tty buffering access fix

Fix typos in new tty buffering that incorrectly
access and update buffers in pending queue.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 years ago[SPARC64] arch/sparc64/Kconfig: fix HUGETLB_PAGE_SIZE_64K dependencies
Adrian Bunk [Wed, 11 Jan 2006 23:55:23 +0000 (15:55 -0800)]
[SPARC64] arch/sparc64/Kconfig: fix HUGETLB_PAGE_SIZE_64K dependencies

This patch fixes a typo in the dependencies of HUGETLB_PAGE_SIZE_64K.

It might be more logical to rename the HUGETLB_PAGE_SIZE_*K
dependencies to HUGETLB_PAGE_SIZE_*KB, but let's fix this bug first.

This bug was reported by Jean-Luc Leger <reiga@dspnet.fr.eu.org>.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoFix mutex_trylock() copy-and-paste bug (x86, x86-64, generic mutex-dec.h)
Linus Torvalds [Wed, 11 Jan 2006 23:50:47 +0000 (15:50 -0800)]
Fix mutex_trylock() copy-and-paste bug (x86, x86-64, generic mutex-dec.h)

Noticed by Arjan originally on x86-64, then Ingo on x86, and finally me
grepping for it in the generic version.

Bad parenthesis nesting.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>