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From: Greg KH <greg@kroah.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: [PATCH 5 of 7] block: Block/request layer data integrity support
Date: Sat, 7 Jun 2008 21:27:54 -0700	[thread overview]
Message-ID: <20080608042754.GA21251@kroah.com> (raw)
In-Reply-To: <5be7c534c9542dc4bab1.1212814538@sermon.lab.mkp.net>

On Sat, Jun 07, 2008 at 12:55:38AM -0400, Martin K. Petersen wrote:
> +5.1 NORMAL FILESYSTEM
> +
> +    The normal filesystem is unaware that the underlying block device
> +    is capable of sending/receiving integrity metadata.  The IMD will
> +    be automatically generated by the block layer at submit_bio() time
> +    in case of a WRITE.  A READ request will cause the I/O integrity
> +    to be verified upon completion.
> +
> +    IMD generation and verification can be toggled using the
> +
> +      /sys/class/block/<bdev>/integrity/write_generate
> +
> +    and
> +
> +      /sys/class/block/<bdev>/integrity/read_verify
> +
> +    flags.
> +

All of the sysfs interfaces should be documented in Documentation/ABI/
not here, otherwise they will be tough to find and figure out how to
use :)

thanks,

greg k-h

  reply	other threads:[~2008-06-08  4:31 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-07  4:55 [PATCH 0 of 7] Block/SCSI Data Integrity Support Martin K. Petersen
2008-06-07  4:55 ` [PATCH 1 of 7] lib: Add support for the T10 Data Integrity Field CRC Martin K. Petersen
2008-06-07  4:55 ` [PATCH 2 of 7] block: Globalize bio_set and bio_vec_slab Martin K. Petersen
2008-06-10 18:55   ` Jeff Moyer
2008-06-07  4:55 ` [PATCH 3 of 7] block: Find bio sector offset given idx and offset Martin K. Petersen
2008-06-09 16:07   ` Jeff Moyer
2008-06-09 16:15     ` Martin K. Petersen
2008-06-10 19:02   ` Jeff Moyer
2008-06-07  4:55 ` [PATCH 4 of 7] block: bio data integrity support Martin K. Petersen
2008-06-07 14:45   ` Monakhov Dmitri
2008-06-09 15:05     ` Martin K. Petersen
2008-06-10 20:52   ` Jeff Moyer
2008-06-11  4:05     ` Martin K. Petersen
2008-06-11 17:41       ` Jeff Moyer
2008-06-07  4:55 ` [PATCH 5 of 7] block: Block/request layer " Martin K. Petersen
2008-06-08  4:27   ` Greg KH [this message]
2008-06-09 15:06     ` Martin K. Petersen
2008-06-07  4:55 ` [PATCH 6 of 7] scsi: Support devices with protection information (DIF) Martin K. Petersen
2008-06-07  4:55 ` [PATCH 7 of 7] Support for SCSI disk (SBC) Data Integrity Field Martin K. Petersen
2008-06-10 14:41 ` [PATCH 0 of 7] Block/SCSI Data Integrity Support Jeff Moyer
2008-06-10 15:28   ` Martin K. Petersen
2008-06-10 18:49     ` Jeff Moyer
2008-06-10 20:47       ` Martin K. Petersen
2008-06-10 20:53         ` Jeff Moyer
2008-07-17 13:55     ` Mike Snitzer
2008-07-17 15:35       ` Martin K. Petersen

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