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authorChristof Schmitt <christof.schmitt@de.ibm.com>2008-01-11 04:09:43 -0500
committerJens Axboe <jens.axboe@oracle.com>2008-01-28 04:04:46 -0500
commit6da127ad0918f93ea93678dad62ce15ffed18797 (patch)
treeb2bf9ad228f18c643342ad376136d2f6b4be4137 /Documentation/highuid.txt
parent91525300baf162e83e923b09ca286f9205e21522 (diff)
blktrace: Add blktrace ioctls to SCSI generic devices
Since the SCSI layer uses the request queues from the block layer, blktrace can also be used to trace the requests to all SCSI devices (like SCSI tape drives), not only disks. The only missing part is the ioctl interface to start and stop tracing. This patch adds the SETUP, START, STOP and TEARDOWN ioctls from blktrace to the sg device files. With this change, blktrace can be used for SCSI devices like for disks, e.g.: blktrace -d /dev/sg1 -o - | blkparse -i - Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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