Heiko Carstens c5e3acd666 s390/smp: avoid concurrent write to sigp status field ... When a sigp instruction is issued it may store a status. This status is currently stored in a per cpu field of the target cpu. If multiple cpus issue a sigp instruction with the same target cpu and a status is stored the result is not necessarily as expected. Currently this is not an issue: - on cpu hotplug no sigps, except "restart" and "sense" are sent to the target cpu. - on external call we don't look at the status if it is stored - on sense running the condition code "status stored" is sufficient to tell if a cpu is running or not Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2012-09-26 15:45:04 +02:00
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appldata	s390/vtimer: rework virtual timer interface	2012-07-20 11:15:08 +02:00
boot	s390/string: provide asm lib functions for memcpy and memcmp	2012-09-26 15:44:50 +02:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2012-07-26 13:00:59 -07:00
hypfs	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
include/asm	s390/cache: add cpu cache information to /proc/cpuinfo	2012-09-26 15:45:03 +02:00
kernel	s390/smp: avoid concurrent write to sigp status field	2012-09-26 15:45:04 +02:00
kvm	s390/kconfig: split the s390 base menu	2012-09-26 15:44:51 +02:00
lib	s390/string: provide asm lib functions for memcpy and memcmp	2012-09-26 15:44:50 +02:00
math-emu	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
mm	s390/cpu hotplug: mask out CPU_TASKS_FROZEN in cu hotplug notifiers	2012-09-26 15:44:53 +02:00
net	s390/bpf,jit: improve code generation	2012-09-26 15:44:49 +02:00
oprofile	oprofile, s390: Fix uninitialized memory access when writing to oprofilefs	2012-08-27 14:49:23 +02:00
defconfig	Merge branch 'akpm' (Andrew's patch-bomb)	2012-07-31 19:25:39 -07:00
Kbuild	s390/bpf,jit: BPF Just In Time compiler for s390	2012-09-26 15:44:49 +02:00
Kconfig	s390/cio: add eadm subchannel driver	2012-09-26 15:45:00 +02:00
Kconfig.debug	[S390] Write protect module text and RO data	2011-03-15 17:08:23 +01:00
Makefile	s390: Use generic init_task	2012-05-05 13:00:25 +02:00