From db2dbb12dc47a50c7a4c5678f526014063e486f6 Mon Sep 17 00:00:00 2001
From: Jeff Moyer <jmoyer@redhat.com>
Date: Wed, 22 Apr 2009 14:08:13 +0200
Subject: [PATCH] block: implement blkdev_readpages

Doing a proper block dev ->readpages() speeds up the crazy dump(8)
approach of using interleaved process IO.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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