From: Matthew Wilcox <mawilcox@microsoft.com>
Subject: RE: [PATCH v2 2/9] ext2: tell DAX the size of allocation holes
Date: Sat, 10 Sep 2016 07:33:18 +0000
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References: <20160823220419.11717-1-ross.zwisler@linux.intel.com>
 <20160823220419.11717-3-ross.zwisler@linux.intel.com>
 <20160825075728.GA11235@infradead.org>
 <20160826212934.GA11265@linux.intel.com>
 <20160829074116.GA16491@infradead.org>
 <20160829125741.cdnbb2uaditcmnw2@thunk.org>
 <20160909164808.GC18554@linux.intel.com>
 <DM2PR21MB0089BCA980B67D8C53B25A1BCBFA0@DM2PR21MB0089.namprd21.prod.outlook.com>
 <20160910073012.GA5295@infradead.org>
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Cc: Ross Zwisler <ross.zwisler@linux.intel.com>, Theodore Ts'o
	<tytso@mit.edu>, "linux-kernel@vger.kernel.org"
	<linux-kernel@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>,
	"linux-nvdimm@ml01.01.org" <linux-nvdimm@ml01.01.org>, Dave Chinner
	<david@fromorbit.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, "Andreas
 Dilger" <adilger.kernel@dilger.ca>, Alexander Viro <viro@zeniv.linux.org.uk>,
	Jan Kara <jack@suse.com>, "linux-fsdevel@vger.kernel.org"
	<linux-fsdevel@vger.kernel.org>, "linux-ext4@vger.kernel.org"
	<linux-ext4@vger.kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Return-path: <owner-linux-mm@kvack.org>
In-Reply-To: <20160910073012.GA5295@infradead.org>
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From: Christoph Hellwig [mailto:hch@infradead.org]
> The mail is basically unparsable (hint: you can use a sane mailer even wi=
th
> exchange servers :)).

That rather depends on how the Exchange servers are configured ... this isn=
't the
appropriate place to discuss IT issues though.

> Either way we need to get rid of buffer_heads, and another aop that is en=
tirely
> caller specific is unaceptable.  That being said your idea doesn't sounds
> unreasonable, but will require a bit more work and has no real short-term
> need.

So your proposal is to remove buffer_heads from ext2?

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