linux-kernel - Re: [PATCH 41/42] block: do not use REQ

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Date:	Sun, 17 Apr 2016 10:46:59 +0200
From:	Juergen Gross <kernel@...pf.net>
To:	mchristi@...hat.com, linux-f2fs-devel@...ts.sourceforge.net,
	linux-ext4@...r.kernel.org, konrad.wilk@...cle.com,
	drbd-dev@...ts.linbit.com, philipp.reisner@...bit.com,
	lars.ellenberg@...bit.com, linux-raid@...r.kernel.org,
	dm-devel@...hat.com, linux-fsdevel@...r.kernel.org,
	linux-bcache@...r.kernel.org, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-mtd@...ts.infradead.org, target-devel@...r.kernel.org,
	linux-btrfs@...r.kernel.org, osd-dev@...n-osd.org, xfs@....sgi.com,
	ocfs2-devel@....oracle.com
Subject: Re: [PATCH 41/42] block: do not use REQ_FLUSH for tracking flush
 support

On 15/04/16 21:16, mchristi@...hat.com wrote:
> From: Mike Christie <mchristi@...hat.com>
> 
> 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 so
> they can send a write/flush combo.
> 
> This patch drops xen's use of REQ_FLUSH to track if it supports
> REQ_OP_FLUSH requests, so REQ_FLUSH can be deleted.
> 
> v7:
> - Fix feature_flush/fua use.
> 
> v6:
> - Dropped parts of patch handled by Jens's QUEUE_FLAG_WC/FUA
> patches and modified patch to check feature_flush/fua bits.
> 
> Signed-off-by: Mike Christie <mchristi@...hat.com>
> Reviewed-by: Hannes Reinecke <hare@...e.com>
> Cc: Juergen Gross <kernel@...pf.net>

Acked-by: Juergen Gross <jgross@...e.com>


Juergen