From: Mikulas Patocka Date: Thu, 31 Oct 2013 17:55:45 +0000 (-0400) Subject: dm: allocate buffer for messages with small number of arguments using GFP_NOIO X-Git-Tag: v3.13-rc1~97^2~31 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f36afb3957353d2529cb2b00f78fdccd14fc5e9c;p=pandora-kernel.git dm: allocate buffer for messages with small number of arguments using GFP_NOIO dm-mpath and dm-thin must process messages even if some device is suspended, so we allocate argv buffer with GFP_NOIO. These messages have a small fixed number of arguments. On the other hand, dm-switch needs to process bulk data using messages so excessive use of GFP_NOIO could cause trouble. The patch also lowers the default number of arguments from 64 to 8, so that there is smaller load on GFP_NOIO allocations. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Acked-by: Alasdair G Kergon Signed-off-by: Mike Snitzer --- Reading git-diff-tree failed