Date: Wed, 25 Aug 2010 17:59:20 +0200
From: Christoph Hellwig <hch@lst.de>
To: Tejun Heo <tj@kernel.org>
Cc: jaxboe@fusionio.com, linux-kernel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, linux-scsi@vger.kernel.org,
        linux-ide@vger.kernel.org, linux-raid@vger.kernel.org, hch@lst.de,
        James.Bottomley@suse.de, tytso@mit.edu, chris.mason@oracle.com,
        swhiteho@redhat.com, konishi.ryusuke@lab.ntt.co.jp,
        dm-devel@redhat.com, vst@vlnb.net, jack@suse.cz, rwheeler@redhat.com,
        hare@suse.de, neilb@suse.de, rusty@rustcorp.com.au, mst@redhat.com,
        jeremy@goop.org, snitzer@redhat.com, k-ueda@ct.jp.nec.com,
        Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 29/30] block: remove the BLKDEV_IFL_BARRIER flag
Message-ID: <20100825155920.GB3229@lst.de>
References: <1282751267-3530-1-git-send-email-tj@kernel.org> <1282751267-3530-30-git-send-email-tj@kernel.org>
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On Wed, Aug 25, 2010 at 05:47:46PM +0200, Tejun Heo wrote:
> From: Christoph Hellwig <hch@infradead.org>
> 
> Remove support for barriers on discards, which is unused now.  Also
> remove the DISCARD_NOBARRIER I/O type in favour of just setting the
> rw flags up locally in blkdev_issue_discard.
> 
> tj: Also remove DISCARD_SECURE and use REQ_SECURE directly.

REQ_SECURE was just added for mmc.  I assume they plan to submit the
driver support soon.

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