linux-kernel - Re: [PATCH 2/3] block: introduce REQ

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Message-ID: <20100627095223.GA6447@infradead.org>
Date:	Sun, 27 Jun 2010 05:52:24 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	axboe@...nel.dk, James.Bottomley@...senPartnership.com,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH 2/3] block: introduce REQ_FLUSH flag

> +++ b/include/linux/bio.h
> @@ -152,6 +152,7 @@ enum rq_flag_bits {
>  	__REQ_SYNC,		/* request is sync (sync write or read) */
>  	__REQ_META,		/* metadata io request */
>  	__REQ_DISCARD,		/* request to discard sectors */
> +	__REQ_FLUSH,		/* request for cache flush */

As we only used this in the request it should go into the struct request
only section at the end of the flags.

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