linux-kernel - Re: [PATCH v2 0/3] special_mapping

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Message-ID: <1436552407.27924.37.camel@stgolabs.net>
Date:	Fri, 10 Jul 2015 11:20:07 -0700
From:	Davidlohr Bueso <dave@...olabs.net>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Lutomirski <luto@...nel.org>,
	Hugh Dickins <hughd@...gle.com>,
	Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Pavel Emelyanov <xemul@...allels.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] special_mapping_fault() is broken

On Fri, 2015-07-10 at 18:51 +0200, Oleg Nesterov wrote:
> And after this change vma_is_anonymous() becomes really trivial, it
> simply checks vm_ops == NULL. However, I do think the helper makes
> sense. There are a lot of ->vm_ops != NULL checks, the helper makes
> the caller's code more understandable (self-documented) and this is
> more grep-friendly.

Yes, I for one, very much welcome this helper.

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