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authorMartin K. Petersen <martin.petersen@oracle.com>2009-05-22 23:17:52 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-05-22 23:22:55 +0200
commitcd43e26f071524647e660706b784ebcbefbd2e44 (patch)
tree11625a25ba8a7c5cd4fe41b54d53506a7982433b /Documentation/DMA-API.txt
parentblock: Move queue limits to an embedded struct (diff)
downloadlinux-cd43e26f071524647e660706b784ebcbefbd2e44.tar.xz
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block: Expose stacked device queues in sysfs
Currently stacking devices do not have a queue directory in sysfs. However, many of the I/O characteristics like sector size, maximum request size, etc. are queue properties. This patch enables the queue directory for MD/DM devices. The elevator code has been modified to deal with queues that do not have an I/O scheduler. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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