tree e0e52ad2a0e6d3142945346f5acd7979c2b10e8d
parent 2bbedcb4c1abac498f18e5770d62ae66ff235ada
author Tejun Heo <tj@kernel.org> 1220269475 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1223535371 +0200

init: DEBUG_BLOCK_EXT_DEVT requires explicit root= param

DEBUG_BLOCK_EXT_DEVT shuffles SCSI and IDE device numbers and root
device number set using rdev become meaningless.  Root devices should
be explicitly specified using textual names.  Warn about it if root
can't be found and DEBUG_BLOCK_EXT_DEVT is enabled.  Also, add warning
to the help text.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>