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linux-stable/arch/s390
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Jens Freimann ffeca0ae88 KVM: s390: optimize interrupt handling round trip time 
We can avoid checking guest control registers and guest PSW as well
as all the masking and calculations on the interrupt masks when
no interrupts are pending.

Also, the check for IRQ_PEND_COUNT can be removed, because we won't
enter the while loop if no interrupts are pending and invalid interrupt
types can't be injected.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-05-08 15:51:15 +02:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390: remove "64" suffix from a couple of files 2015-03-25 11:49:34 +01:00
configs s390: update default configuration 2015-01-22 12:16:09 +01:00
crypto s390/zcrypt: Introduce new SHA-512 based Pseudo Random Generator. 2015-04-23 16:56:21 +02:00
hypfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
include KVM: s390: make exit_sie_sync more robust 2015-05-08 15:51:14 +02:00
kernel KVM: s390: make exit_sie_sync more robust 2015-05-08 15:51:14 +02:00
kvm KVM: s390: optimize interrupt handling round trip time 2015-05-08 15:51:15 +02:00
lib s390: remove "64" suffix from mem64.S and swsusp_asm64.S 2015-03-25 11:49:51 +01:00
mm s390/mm: change swap pte encoding and pgtable cleanup 2015-04-23 16:56:20 +02:00
net s390/bpf: Add s390x eBPF JIT compiler backend 2015-04-15 12:23:49 +02:00
oprofile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-04-20 10:15:33 -07:00
defconfig s390: update default configuration 2015-01-22 12:16:09 +01:00
Kbuild s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
Kconfig s390/bpf: add dependency to z196 features 2015-04-23 16:55:50 +02:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00