From: Stefan Haberland Date: Tue, 27 Dec 2011 10:27:28 +0000 (+0100) Subject: [S390] dasd: fix fixpoint divide exception in define_extent X-Git-Tag: v3.3-rc1~157^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b38f27e8425a132ed2dc49ffb3741404e81363d8;p=pandora-kernel.git [S390] dasd: fix fixpoint divide exception in define_extent If an IO request is build on an alias device without prefix enabled we try to calculate with zero data from the alias device. This triggers a BUG statement with fixpoint divide exception. This case is very unlikely and can only happen if the pathgroup is lost with an alias device already in use. Prevent the alias device from being used in this case. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky --- Reading git-diff-tree failed