From 6753471c0cb4562aebb9c70beb74ccd392d49ee8 Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Wed, 8 Jan 2014 20:17:46 -0700
Subject: [PATCH] blk-mq: uses page->list incorrectly

'struct page' has two list_head fields: 'lru' and 'list'.  Conveniently,
they are unioned together.  This means that code can use them
interchangably, which gets horribly confusing.

The blk-mq made the logical decision to try to use page->list.  But, that
field was actually introduced just for the slub code.  ->lru is the right
field to use outside of slab/slub.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
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