linux-kernel - Re: [PATCH] mm: change tlb_finish

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Message-ID: <20151104083610.GA403@swordfish>
Date:	Wed, 4 Nov 2015 17:36:10 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	yalin wang <yalin.wang2010@...il.com>
Cc:	akpm@...ux-foundation.org, kirill.shutemov@...ux.intel.com,
	mgorman@...e.de, hannes@...xchg.org, riel@...hat.com,
	raindel@...lanox.com, willy@...ux.intel.com, boaz@...xistor.com,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: change tlb_finish_mmu() to be more simple

On (11/04/15 15:35), yalin wang wrote:
[..]
>  
> -	for (batch = tlb->local.next; batch; batch = next) {
> -		next = batch->next;
> +	for (batch = tlb->local.next; batch; batch = batch->next)
>  		free_pages((unsigned long)batch, 0);

accessing `batch->next' after calling free_pages() on `batch'?

		-ss
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