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Date: Wed, 28 Jun 2017 16:41:12 +0200
From: Christoph Hellwig <hch@lst.de>
To: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>, Al Viro <viro@zeniv.linux.org.uk>,
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Subject: Re: [PATCH v2 10/10] ima: use existing read file operation method
        to calculate file hash
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NAK - we'll need an explicit method for the integrity code.

And just curious - what filesystem that you care about actually
implements ->read instead of ->read_iter?  We shouldn't be doing that
for real file systems anymore.