From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Fri, 26 Feb 2010 21:37:25 +0000 (+0100)
Subject: [S390] cio: introduce cio_settle
X-Git-Tag: v2.6.34-rc1~268^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=879acca58a904c25487c89ab11e23eb556fb13d3;p=pandora-kernel.git

[S390] cio: introduce cio_settle

This patch introduces a proc file cio_settle. A write request to
this file is blocked until all queued cio actions are handled.

This will allow userspace to wait for pending work affecting
device availability after changing cio_ignore or the hardware
configuration.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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