From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 20 May 2014 17:38:33 +0000 (-0400)
Subject: dm thin: add 'no_space_timeout' dm-thin-pool module param
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~122^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80c578930ce77ba8bcfb226a184b482020bdda7b;p=pandora-kernel.git

dm thin: add 'no_space_timeout' dm-thin-pool module param

Commit 85ad643b ("dm thin: add timeout to stop out-of-data-space mode
holding IO forever") introduced a fixed 60 second timeout.  Users may
want to either disable or modify this timeout.

Allow the out-of-data-space timeout to be configured using the
'no_space_timeout' dm-thin-pool module param.  Setting it to 0 will
disable the timeout, resulting in IO being queued until more data space
is added to the thin-pool.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.14+
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