s390/pci: add locking for fmb access
authorSebastian Ott <sebott@linux.vnet.ibm.com>
Fri, 10 Apr 2015 12:34:33 +0000 (14:34 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 15 Apr 2015 10:23:53 +0000 (12:23 +0200)
commit80ed156a3d12819a8c839f40f5b6996c4aa117a5
treee7cc5c5e155456168ed80b1f0f69205c2d6cc437
parent6001018ae8c659e624351d2e73b1272bacd68d6a
s390/pci: add locking for fmb access

Function measurement can be toggled at runtime. Make sure that
all access to the fmb is protected via a mutex.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/include/asm/pci.h
arch/s390/pci/pci.c
arch/s390/pci/pci_debug.c