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Date: Wed, 13 Sep 2017 18:55:46 +0200
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [BUG] xfs/104 triggered NULL pointer dereference in iomap
        based dio
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References: <20170913105823.GD8034@eguan.usersys.redhat.com> <8010113.2DyTjQuL2r@localhost.localdomain>
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To: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Cc: Eryu Guan <eguan@redhat.com>, linux-xfs@vger.kernel.org, linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>

Does it work fine if you call sb_init_dio_done_wq unconditionally?