linux-stable.git/drivers/xen, branch linux-2.6.28.y

xen: make sysfs files behave as their names suggest

2009-02-06T21:47:16+00:00

commit 618b2c8db24522ae273d8299c6a936ea13793c4d upstream.

1: make "target_kb" only accept and produce a memory size in kilobytes.
2: add a second "target" file which produces output in bytes, and will accept
   memparse input (scaled bytes)

This fixes the rather irritating problem that writing the same value
read back into target_kb would end up shrinking the domain by a factor
of 1024, with generally bad results.

Signed-off-by: Jeremy Fitzhardinge 
Cc: "dan.magenheimer@oracle.com" 
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

xen: fix scrub_page()

2008-11-17T18:11:26+00:00

Impact: fix guest kernel crash with CONFIG_XEN_SCRUB_PAGES=y

Jens noticed that scrub_page() has a buggy unmap of the wrong
thing. (virtual address instead of page)

Linus pointed out that the whole scrub_page() code is an unnecessary
reimplementation of clear_highpage() to begin with.

Just use clear_highpage() rather than reimplementing it poorly.

Reported-by: Jens Axboe 
Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

drivers: remove duplicated #include

2008-11-04T16:18:19+00:00

Signed-off-by: Jianjun Kong 
Signed-off-by: Linus Torvalds

xen: compilation fix of drivers/xen/events.c on IA64

2008-10-23T19:54:37+00:00

use set_xen_guest_handle() instead of direct assigning.

> linux-2.6/drivers/xen/events.c: In function 'xen_poll_irq':
> linux-2.6/drivers/xen/events.c:757: error: incompatible types in assignment
> make[4]: *** [drivers/xen/events.o] Error 1

Signed-off-by: Isaku Yamahata 
Signed-off-by: Jeremy Fitzhardinge 
Cc: Isaku Yamahata 
Signed-off-by: Ingo Molnar

xen: portability clean up and some minor clean up for xencomm.c

2008-10-23T19:54:36+00:00

clean up of xencomm.c. is_phys_contiguous() is arch dependent
function that depends on how virtual memory are laid out.
So split out the function into arch specific code.

Signed-off-by: Isaku Yamahata 
Signed-off-by: Jeremy Fitzhardinge 
Cc: Isaku Yamahata 
Signed-off-by: Ingo Molnar 
Cc: "Luck, Tony"

xen: don't reload cr3 on suspend

2008-10-23T19:54:35+00:00

It isn't necessary, and it makes the code needlessly non-portable.

Signed-off-by: Jeremy Fitzhardinge 
Cc: Isaku Yamahata 
Signed-off-by: Ingo Molnar

x86, um: ... and asm-x86 move

2008-10-23T05:55:20+00:00

Signed-off-by: Al Viro 
Signed-off-by: H. Peter Anvin

genirq: use iterators for irq_desc loops

2008-10-16T14:53:30+00:00

Use for_each_irq_desc[_reverse] for all the iteration loops.

Signed-off-by: Thomas Gleixner

xen: fix memory access violation bug when CONFIG_HAVE_SPARSE_IRQ is enabled

2008-10-16T14:52:58+00:00

When sparse IRQs are enabled, it is not safe to assume an IRQ descriptor
exists for every possible IRQ.  This patch causes init_evtchn_cpu_bindings
to skip initialisation of IRQ descriptors which don't exist.

Signed-off-by: Alex Nixon 
Acked-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[]

2008-10-16T14:52:29+00:00

add CONFIG_HAVE_SPARSE_IRQ to for use condensed array.
Get rid of irq_desc[] array assumptions.

Preallocate 32 irq_desc, and irq_desc() will try to get more.

( No change in functionality is expected anywhere, except the odd build
  failure where we missed a code site or where a crossing commit itroduces
  new irq_desc[] usage. )

v2: according to Eric, change get_irq_desc() to irq_desc()

Signed-off-by: Yinghai Lu 
Signed-off-by: Ingo Molnar