linux-kernel - Re: [PATCH] mm: fix build of split ptlock code

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Date:	Sat, 21 Dec 2013 18:36:48 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Olof Johansson <olof@...om.net>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, akpm@...ux-foundation.org,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Hugh Dickins <hughd@...gle.com>
Subject: Re: [PATCH] mm: fix build of split ptlock code

On Fri, Dec 20, 2013 at 02:28:05PM -0800, Olof Johansson wrote:
> Commit 597d795a2a78 ('mm: do not allocate page->ptl dynamically, if
> spinlock_t fits to long') restructures some allocators that are compiled
> even if USE_SPLIT_PTLOCKS arn't used. It results in compilation failure:
> 
> mm/memory.c:4282:6: error: 'struct page' has no member named 'ptl'
> mm/memory.c:4288:12: error: 'struct page' has no member named 'ptl'
> 
> Add in the missing ifdef.
> 
> Fixes: 597d795a2a78 ('mm: do not allocate page->ptl dynamically, if spinlock_t fits to long')
> Signed-off-by: Olof Johansson <olof@...om.net>
> Cc: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> Cc: Hugh Dickins <hughd@...gle.com>

Sorry, for that.

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov
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