From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 20 Oct 2014 08:24:39 +0000 (+0200)
Subject: s390/time: use stck clock fast for do_account_vtime
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~157^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f759bb3a2a0d75ceeeec729b1c66a7f443631ba;p=pandora-kernel.git

s390/time: use stck clock fast for do_account_vtime

The last high frequency call site of the STCK instruction is
do_account_vtime. Replace it with the faster STCKF instruction.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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