linux-kernel - Re: [PATCH 1/4] blkdev: pass gfp_mask and flags to blkdev_issue

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Date:	Tue, 13 Apr 2010 14:10:23 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Dmitry Monakhov <dmonakhov@...nvz.org>
Cc:	linux-kernel@...r.kernel.org, jens.axboe@...cle.com,
	hch@...radead.org
Subject: Re: [PATCH 1/4] blkdev: pass gfp_mask and flags to
	blkdev_issue_flush

> +enum{
> +	__BLKDEV_IFL_WAIT,	/* wait for completion */
> +	__BLKDEV_IFL_BARRIER,	/*issue request with barrier */
> +};
> +#define BLKDEV_IFL_WAIT		(1 << __BLKDEV_IFL_WAIT)
> +#define BLKDEV_IFL_BARRIER	(1 << __BLKDEV_IFL_BARRIER)

This is a very awkward stayle to define flags.  There really should
be no need for the __-prefixed version.  While you're using them for
test/set_bit and co there's no reason to use these atomic bitops here.

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