From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 12 Aug 2010 03:14:10 +0000 (+0100)
Subject: dm: factor out max_io_len_target_boundary
X-Git-Tag: v2.6.36-rc1~51^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56a67df766039666f61fb15b079f713e44a735ae;p=pandora-kernel.git

dm: factor out max_io_len_target_boundary

Split max_io_len_target_boundary out of max_io_len so that the discard
support can make use of it without duplicating max_io_len code.

Avoiding max_io_len's split_io logic enables DM's discard support to
submit the entire discard request to a target.  But discards must still
be split on target boundaries.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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