Re: [PATCH 34/35] block: add QUEUE_FLAGs for flush and fua

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On Tue, Jan 05, 2016 at 02:53:37PM -0600, mchristi@xxxxxxxxxx wrote:
> From: Mike Christie <mchristi@xxxxxxxxxx>
> 
> The last patch added a REQ_OP_FLUSH for request_fn drivers
> and the next patch renames REQ_FLUSH to REQ_PREFLUSH which
> will be used by file systems and make_request_fn drivers.
> 
> This leaves REQ_FLUSH/REQ_FUA defined for drivers to tell
> the block layer if flush/fua is supported. The names are
> confusing and I bet will will accidentally be used by
> people to request flushes. To avoid that, this patch adds
> QUEUE_FLAGs for flush and fua which drivers will use to
> indicate what they support.
> 
> Signed-off-by: Mike Christie <mchristi@xxxxxxxxxx>

Yes, this was rather confusing before.  Looks great fix the fix for th
kbuild complaint:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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