From: Joe Thornber <ejt@redhat.com>
Date: Fri, 9 Aug 2013 11:48:42 +0000 (+0100)
Subject: dm btree: use pop_frame in dm_btree_del to cleanup code
X-Git-Tag: v3.12-rc1~70^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd5acf0b445030cd8b5bfd818f464997652485e5;p=pandora-kernel.git

dm btree: use pop_frame in dm_btree_del to cleanup code

Remove a visited leaf straight away from the stack, rather than
marking all it's children as visited and letting it get removed on the
next iteration.  May also offer a micro optimisation in dm_btree_del.

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