From: Joe Thornber Date: Fri, 1 Mar 2013 22:45:50 +0000 (+0000) Subject: dm thin: remove cells from stack X-Git-Tag: v3.9-rc1~19^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=025b96853fe0bdc977d88b4242ca5e1f19d9bb66;p=pandora-kernel.git dm thin: remove cells from stack This patch takes advantage of the new bio-prison interface where the memory is now passed in rather than using a mempool in bio-prison. This allows the map function to avoid performing potentially-blocking allocations that could lead to deadlocks: We want to avoid the cell allocation that is done in bio_detain. (The potential for mempool deadlocks still remains in other functions that use bio_detain.) Signed-off-by: Joe Thornber Signed-off-by: Alasdair G Kergon --- Reading git-diff-tree failed