linux-stable.git/arch/s390/include/uapi/asm, branch linux-3.7.y

s390/signal: set correct address space control

2012-11-12T15:24:38+00:00

If user space is running in primary mode it can switch to secondary
or access register mode, this is used e.g. in the clock_gettime code
of the vdso. If a signal is delivered to the user space process while
it has been running in access register mode the signal handler is
executed in access register mode as well which will result in a crash
most of the time.

Set the address space control bits in the PSW to the default for the
execution of the signal handler and make sure that the previous
address space control is restored on signal return. Take care
that user space can not switch to the kernel address space by
modifying the registers in the signal frame.

Cc: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky

s390,uapi: do not use uapi/asm-generic/kvm_para.h

2012-10-19T09:07:18+00:00

It turns out that S390 shouldn't use uapi/asm-generic/kvm_para.h since it
defines the functions in its non-UAPI kvm_para.h file.

#including  will first pick up
include/asm-generic/kvm_para.h, which defines conflicting functions.

Instead, partially revert commit 0420c87e648a3b623ad925038a0bcff2ef5a4bc9,
ungenericising this file and just inserting a comment to prevent the patch
program from deleting it.

cc: Yuanhan Liu 
cc: fengguang.wu@intel.com
Reported-by: Yuanhan Liu 
Signed-off-by: David Howells 
Signed-off-by: Martin Schwidefsky

s390/chpid: make headers usable (again)

2012-10-18T15:50:07+00:00

Add back a hunk from "4dcc2a4 s390/chsc: make headers usable"
which was lost during the merge of the UAPI patch.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

UAPI: Put a comment into uapi/asm-generic/kvm_para.h and use it from arches

2012-10-17T11:32:07+00:00

Make uapi/asm-generic/kvm_para.h non-empty by addition of a comment to stop
the patch program from deleting it when it creates it.

Then delete empty arch-specific uapi/asm/kvm_para.h files and tell the Kbuild
files to use the generic instead.

Should this perhaps instead be a #warning or #error that the facility is
unsupported on this arch?

Signed-off-by: David Howells 
cc: Arnd Bergmann 
cc: Avi Kivity 
cc: Marcelo Tosatti 
cc: kvm@vger.kernel.org

Merge tag 'disintegrate-s390-20121009' of

2012-10-09T12:18:10+00:00

git://git.infradead.org/users/dhowells/linux-headers

Pull UAPI patchset from David Howells:
 "Can you merge the following branch into the s390 tree please.
  This is to complete part of the UAPI disintegration for which the
  preparatory patches were pulled recently."

Conflicts:
	arch/s390/include/asm/chpid.h

UAPI: (Scripted) Disintegrate arch/s390/include/asm

2012-10-09T08:47:31+00:00

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

UAPI: (Scripted) Set up UAPI Kbuild files

2012-10-02T17:01:35+00:00

Set up empty UAPI Kbuild files to be populated by the header splitter.

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones