linux-kernel - Re: [PATCH 01/13] dax: update to new mmu

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Message-ID: <20170902133513.GB26026@redhat.com>
Date:   Sat, 2 Sep 2017 15:35:13 +0200
From:   Andrea Arcangeli <aarcange@...hat.com>
To:     jglisse@...hat.com
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Dan Williams <dan.j.williams@...el.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Bernhard Held <berny156@....de>,
        Adam Borowski <kilobyte@...band.pl>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Wanpeng Li <kernellwp@...il.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Takashi Iwai <tiwai@...e.de>,
        Nadav Amit <nadav.amit@...il.com>,
        Mike Galbraith <efault@....de>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        axie <axie@....com>, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 01/13] dax: update to new mmu_notifier semantic

On Thu, Aug 31, 2017 at 05:17:26PM -0400, Jerome Glisse wrote:
> +		if (start && end) {

"&& end" can be dropped from above and the other places but it can be
optimized later..

Thanks,
Andrea