From: Johannes Weiner <jweiner@redhat.com>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-mm@kvack.org, Mel Gorman <mel@csn.ul.ie>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH] thp: mremap support and TLB optimization
Date: Tue, 15 Mar 2011 13:07:48 +0100 [thread overview]
Message-ID: <20110315120748.GE2140@redhat.com> (raw)
In-Reply-To: <20110315100107.GI10696@random.random>
On Tue, Mar 15, 2011 at 11:01:07AM +0100, Andrea Arcangeli wrote:
> Does this look any better? This also optimizes away the tlb flush for
> totally uninitialized areas.
Looks perfect to me, thanks!
> Subject: thp: mremap support and TLB optimization
>
> From: Andrea Arcangeli <aarcange@redhat.com>
>
> This adds THP support to mremap (decreases the number of split_huge_page
> called).
>
> This also replaces ptep_clear_flush with ptep_get_and_clear and replaces it
> with a final flush_tlb_range to send a single tlb flush IPI instead of one IPI
> for each page.
>
> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
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prev parent reply other threads:[~2011-03-15 12:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-11 2:04 [PATCH] thp: mremap support and TLB optimization Andrea Arcangeli
2011-03-11 15:16 ` Rik van Riel
2011-03-11 19:44 ` Hugh Dickins
2011-03-11 20:25 ` Hugh Dickins
2011-03-12 4:28 ` Andrea Arcangeli
2011-03-12 4:02 ` Andrea Arcangeli
2011-03-15 9:27 ` Johannes Weiner
2011-03-15 10:01 ` Andrea Arcangeli
2011-03-15 12:07 ` Johannes Weiner [this message]
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