linux.git/drivers/lguest, branch v2.6.27

lguest: update commentry

2008-08-25T14:19:28+00:00

Signed-off-by: Rusty Russell

lguest: use get_user_pages_fast() instead of get_user_pages()

2008-08-12T07:52:53+00:00

Using a simple page table thrashing program I measure a slight
improvement.  The program creates five processes.  Each touches 1000
pages then schedules the next process.  We repeat this 1000 times.  As
lguest only caches 4 cr3 values, this rebuilds a lot of shadow page
tables requiring virt->phys mappings.

	Before: 5.93 seconds
	After: 5.40 seconds

(Counts of slow vs fastpath in this usage are 6092 and 2852462 respectively.)

And more importantly for lguest, the code is simpler.

Signed-off-by: Rusty Russell

lguest: use cpu capability accessors

2008-07-28T23:58:34+00:00

To support my little make-x86-bitops-use-proper-typechecking projectlet.

Cc: Thomas Gleixner 
Cc: Andrea Arcangeli 
Signed-off-by: Andrew Morton 
Acked-by: Ingo Molnar 
Signed-off-by: Rusty Russell

lguest: fix switcher_page leak on unload

2008-07-28T23:58:32+00:00

map_switcher allocates the array, unmap_switcher has to free it
accordingly.

Signed-off-by: Johannes Weiner 
Signed-off-by: Rusty Russell

lguest: Guest int3 fix

2008-07-28T23:58:31+00:00

Ron Minnich noticed that guest userspace gets a GPF when it tries to int3:
we need to copy the privilege level from the guest-supplied IDT to the real
IDT.  int3 is the only common case where guest userspace expects to invoke
an interrupt, so that's the symptom of failing to do this.

Signed-off-by: Rusty Russell

virtio: Add transport feature handling stub for virtio_ring.

2008-07-25T02:06:14+00:00

To prepare for virtio_ring transport feature bits, hook in a call in
all the users to manipulate them.  This currently just clears all the
bits, since it doesn't understand any features.

Signed-off-by: Rusty Russell

virtio: Rename set_features to finalize_features

2008-07-25T02:06:12+00:00

Rather than explicitly handing the features to the lower-level, we just
hand the virtio_device and have it set the features.  This make it clear
that it has the chance to manipulate the features of the device at this
point (and that all feature negotiation is already done).

Signed-off-by: Rusty Russell

Merge branch 'generic-ipi' into generic-ipi-for-linus

2008-07-15T19:55:59+00:00

Conflicts:

	arch/powerpc/Kconfig
	arch/s390/kernel/time.c
	arch/x86/kernel/apic_32.c
	arch/x86/kernel/cpu/perfctr-watchdog.c
	arch/x86/kernel/i8259_64.c
	arch/x86/kernel/ldt.c
	arch/x86/kernel/nmi_64.c
	arch/x86/kernel/smpboot.c
	arch/x86/xen/smp.c
	include/asm-x86/hw_irq_32.h
	include/asm-x86/hw_irq_64.h
	include/asm-x86/mach-default/irq_vectors.h
	include/asm-x86/mach-voyager/irq_vectors.h
	include/asm-x86/smp.h
	kernel/Makefile

Signed-off-by: Ingo Molnar

x86, VisWS: turn into generic arch, eliminate Kconfig specials

2008-07-10T16:55:47+00:00

remove leftover traces of various VISWS related Kconfig specials.

Signed-off-by: Ingo Molnar

on_each_cpu(): kill unused 'retry' parameter

2008-06-26T09:24:38+00:00

It's not even passed on to smp_call_function() anymore, since that
was removed. So kill it.

Acked-by: Jeremy Fitzhardinge 
Reviewed-by: Paul E. McKenney 
Signed-off-by: Jens Axboe