From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Christoph Lameter <cl@linux.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, Konstantin Khlebnikov <koct9i@gmail.com>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH] mm: use PageAnon() and PageKsm() helpers in page_anon_vma()
Date: Tue, 31 Mar 2015 17:35:34 +0300 [thread overview]
Message-ID: <20150331143534.GA10808@node.dhcp.inet.fi> (raw)
In-Reply-To: <alpine.DEB.2.11.1503310810320.13959@gentwo.org>
On Tue, Mar 31, 2015 at 08:11:02AM -0500, Christoph Lameter wrote:
> On Tue, 31 Mar 2015, Kirill A. Shutemov wrote:
>
> > Let's use PageAnon() and PageKsm() helpers instead. It helps readability
> > and makes page_anon_vma() work correctly on tail pages.
>
> But it adds a branch due to the use of ||.
Which caller is hot enough to care?
--
Kirill A. Shutemov
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next prev parent reply other threads:[~2015-03-31 14:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-31 11:50 [PATCH] mm: use PageAnon() and PageKsm() helpers in page_anon_vma() Kirill A. Shutemov
2015-03-31 13:11 ` Christoph Lameter
2015-03-31 14:35 ` Kirill A. Shutemov [this message]
2015-03-31 20:33 ` Andrew Morton
2015-04-01 11:50 ` Kirill A. Shutemov
2015-04-01 19:57 ` Andrew Morton
2015-04-01 22:02 ` Kirill A. Shutemov
2015-04-01 22:06 ` Andrew Morton
2015-04-02 11:34 ` Kirill A. Shutemov
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