From 83f539e1a45a07934f0da69dc545bcbde01de36c Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 26 Nov 2013 11:03:54 -0500
Subject: [PATCH] dm cache: update Documentation for invalidate_cblocks's range
 syntax

The cache target's invalidate_cblocks message allows cache block
(cblock) ranges to be expressed with: <cblock start>-<cblock end>

The range's <cblock end> value is "one past the end", so the range
includes <cblock start> through <cblock end>-1.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
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