From 5977907937afa2b5584a874d44ba6c0f56aeaa9c Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 9 Apr 2015 16:53:24 -0400
Subject: [PATCH] dm crypt: leverage immutable biovecs when decrypting on read

Commit 003b5c571 ("block: Convert drivers to immutable biovecs")
stopped short of changing dm-crypt to leverage the fact that the biovec
array of a bio will no longer be modified.

Switch to using bio_clone_fast() when cloning bios for decryption after
read.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Reading git-format-patch failed