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Date:   Tue, 20 Jul 2021 09:35:31 +0100
From:   Will Deacon <will@kernel.org>
To:     Claire Chang <tientzu@chromium.org>
Cc:     "list@263.net:IOMMU DRIVERS <iommu@lists.linux-foundation.org>, Joerg
        Roedel <joro@8bytes.org>," <iommu@lists.linux-foundation.org>,
        lkml <linux-kernel@vger.kernel.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Christoph Hellwig <hch@lst.de>,
        Robin Murphy <robin.murphy@arm.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Nathan Chancellor <nathan@kernel.org>
Subject: Re: [PATCH 5/5] swiotlb: Free tbl memory in swiotlb_exit()
Message-ID: <20210720083530.GA8089@willie-the-truck>
References: <20210719123054.6844-1-will@kernel.org>
 <20210719123054.6844-6-will@kernel.org>
 <CALiNf2_Ubi9cynH1Rjy-o87V3MyvdTazv5rO=sggNai0WJZ81g@mail.gmail.com>
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On Tue, Jul 20, 2021 at 11:36:19AM +0800, Claire Chang wrote:
> On Mon, Jul 19, 2021 at 8:31 PM Will Deacon <will@kernel.org> wrote:
> >
> > Although swiotlb_exit() frees the 'slots' metadata array referenced by
> > 'io_tlb_default_mem', it leaves the underlying buffer pages allocated
> > despite no longer being usable.
> >
> > Extend swiotlb_exit() to free the buffer pages as well as the slots
> > array.
> >
> > Cc: Claire Chang <tientzu@chromium.org>
> > Cc: Christoph Hellwig <hch@lst.de>
> > Cc: Robin Murphy <robin.murphy@arm.com>
> > Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> > Tested-by: Nathan Chancellor <nathan@kernel.org>
> 
> Tested-by: Claire Chang <tientzu@chromium.org>

Thanks, Claire!

Will