From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead
 of ->bmap.
Date: Sun, 19 Apr 2015 23:08:18 -0700
Message-ID: <20150420060818.GA32675@infradead.org>
References: <20150420052558.26554.97143.stgit@notabene.brown>
 <20150420052752.26554.52672.stgit@notabene.brown>
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Cc: David Howells <dhowells@redhat.com>, Chris Mason <clm@fb.com>,
	Al Viro <viro@ZenIV.linux.org.uk>, Josef Bacik <jbacik@fb.com>,
	David Sterba <dsterba@suse.cz>, linux-cachefs@vger.kernel.org,
	Dave Chinner <david@fromorbit.com>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-btrfs@vger.kernel.org
To: NeilBrown <neilb@suse.de>
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Please just usse SEEK_HOLE/DATA support unconditioanlly.  ->bmap is a
horrible hack that is completely unsafe.