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From: Andrew Morton <akpm@digeo.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: vandrove@vc.cvut.cz, helgehaf@aitel.hist.no,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vm_area_struct slab corruption
Date: Thu, 6 Mar 2003 14:52:23 -0800	[thread overview]
Message-ID: <20030306145223.67d571b1.akpm@digeo.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0303061208470.2196-100000@localhost.localdomain>

Hugh Dickins <hugh@veritas.com> wrote:
>
> +	 * Note: mremap's move_vma VM_ACCOUNT handling assumes a partially
> +	 * unmapped vm_area_struct will remain in use: so lower split_vma
> +	 * places tmp vma above, and higher split_vma places tmp vma below.

Cough.  Would it be clearer to just return the address of the surviving vma
from do_munmap()?  Via an extra arg, or a PTR_ERR thingy?


  reply	other threads:[~2003-03-06 22:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-06 12:29 [PATCH] vm_area_struct slab corruption Hugh Dickins
2003-03-06 22:52 ` Andrew Morton [this message]
2003-03-07  5:27   ` Hugh Dickins
2003-03-07  6:00     ` Andrew Morton
2003-03-07 12:59       ` Alan Cox

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