block: Add sysfs documentation for the discard topology parameters
authorMartin K. Petersen <martin.petersen@oracle.com>
Wed, 18 May 2011 08:37:39 +0000 (10:37 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Wed, 18 May 2011 08:37:39 +0000 (10:37 +0200)
Add documentation for the discard I/O topology parameters exported in
sysfs.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

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