From: Jens Freimann <jfrei@linux.vnet.ibm.com>
Date: Tue, 29 Jul 2014 13:11:49 +0000 (+0200)
Subject: KVM: s390: handle pending local interrupts via bitmap
X-Git-Tag: omap-for-v3.19/fixes-rc1~43^2~35^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=383d0b050106abecb82f43101cac94fa423af5cd;p=pandora-kernel.git

KVM: s390: handle pending local interrupts via bitmap

This patch adapts handling of local interrupts to be more compliant with
the z/Architecture Principles of Operation and introduces a data
structure
which allows more efficient handling of interrupts.

* get rid of li->active flag, use bitmap instead
* Keep interrupts in a bitmap instead of a list
* Deliver interrupts in the order of their priority as defined in the
  PoP
* Use a second bitmap for sigp emergency requests, as a CPU can have
  one request pending from every other CPU in the system.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---

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