From: Mikulas Patocka <mpatocka@redhat.com>
Date: Thu, 10 Dec 2009 23:51:57 +0000 (+0000)
Subject: dm io: use slab for struct io
X-Git-Tag: v2.6.33-rc1~75^2~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=952b355760c196ec014dd0b6878f85a11496e3da;p=pandora-kernel.git

dm io: use slab for struct io

Allocate "struct io" from a slab.

This patch changes dm-io, so that "struct io" is allocated from a slab cache.
It used to be allocated with kmalloc. Allocating from a slab will be needed
for the next patch, because it requires a special alignment of "struct io"
and kmalloc cannot meet this alignment.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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