From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Thu, 12 Dec 2013 16:26:51 +0000 (+0100)
Subject: s390/cpum_sf: Atomically reset trailer entry fields of sample-data-blocks
X-Git-Tag: v3.14-rc1~184^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcc77f507333776eaa336ab4ff49c23422f53703;p=pandora-kernel.git

s390/cpum_sf: Atomically reset trailer entry fields of sample-data-blocks

Ensure to reset the sample-data-block full indicator and the overflow counter
at the same time.  This must be done atomically because the sampling hardware
is still active while full sample-data-block is processed.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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