linux-kernel - Re: [PATCH] mm: do not inc NR_PAGETABLE if ptlock

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Message-ID: <20151019122126.GA15819@node.shutemov.name>
Date:	Mon, 19 Oct 2015 15:21:26 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Vladimir Davydov <vdavydov@...tuozzo.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: do not inc NR_PAGETABLE if ptlock_init failed

On Mon, Oct 19, 2015 at 03:14:41PM +0300, Vladimir Davydov wrote:
> If ALLOC_SPLIT_PTLOCKS is defined, ptlock_init may fail, in which case
> we shouldn't increment NR_PAGETABLE.
> 
> Since small allocations, such as ptlock, normally do not fail (currently
> they can fail if kmemcg is used though), this patch does not really fix
> anything and should be considered as a code cleanup.
> 
> Signed-off-by: Vladimir Davydov <vdavydov@...tuozzo.com>

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

-- 
 Kirill A. Shutemov
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