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Date: Thu, 15 Feb 2018 13:47:08 -0800
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v5 3/3] xfs: reject removal of realtime flag when datadev
 doesn't support DAX
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To: Dave Jiang <dave.jiang@intel.com>
Cc: darrick.wong@oracle.com, linux-nvdimm@lists.01.org, david@fromorbit.com, linux-xfs@vger.kernel.org, ross.zwisler@linux.intel.com, linux-ext4@vger.kernel.org, dan.j.williams@intel.com

> +	if ((XFS_IS_REALTIME_INODE(ip)) &&

No need for the inner braces.

Except for that the whole series looks fine to me.