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Date: Thu, 24 Aug 2017 05:27:20 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 11/13] dax, iomap: Add support for synchronous faults
Message-ID: <20170824122720.GA9961@infradead.org>
References: <20170817160815.30466-1-jack@suse.cz>
 <20170817160815.30466-12-jack@suse.cz>
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To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org, Andy Lutomirski <luto@kernel.org>, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, Christoph Hellwig <hch@infradead.org>, Ross Zwisler <ross.zwisler@linux.intel.com>, Dan Williams <dan.j.williams@intel.com>, Boaz Harrosh <boazh@netapp.com>

Just curious:  how does IOMAP_F_NEEDDSYNC practically differ
from IOMAP_F_NEW?