linux-kernel - Re: [PATCH -mm v2 01/11] mm: track free size between VMAs in VMA rbtree

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Date:	Fri, 22 Jun 2012 11:58:35 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Rik van Riel <riel@...riel.com>
Cc:	linux-mm@...ck.org, akpm@...ux-foundation.org, aarcange@...hat.com,
	minchan@...il.com, kosaki.motohiro@...il.com, andi@...stfloor.org,
	hannes@...xchg.org, mel@....ul.ie, linux-kernel@...r.kernel.org,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH -mm v2 01/11] mm: track free size between VMAs in VMA
 rbtree

On Thu, 2012-06-21 at 17:57 -0400, Rik van Riel wrote:
> @@ -1941,6 +2017,8 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
>         *insertion_point = vma;
>         if (vma)
>                 vma->vm_prev = prev;
> +       if (vma)
> +               rb_augment_erase_end(&vma->vm_rb, vma_rb_augment_cb, NULL); 

Shouldn't that be adjust_free_gap()? There is after all no actual erase
happening.
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