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Subjectcheck_dis(c|k)_change(|d): duplicated code

I was looking up linux code to find why /proc/partitions report 'hdc' instead
of 'ide/host0/bus1/target0/lun0/cd'

example:
--------
major minor #blocks name

8 0 1048575 scsi/host0/bus0/target6/lun0/disc
3 0 3140928 ide/host0/bus0/target0/lun0/disc
3 1 4000 ide/host0/bus0/target0/lun0/part1
3 2 3132864 ide/host0/bus0/target0/lun0/part2
3 64 3167640 ide/host0/bus0/target1/lun0/disc
3 65 1 ide/host0/bus0/target1/lun0/part1
3 67 899136 ide/host0/bus0/target1/lun0/part3
3 68 165312 ide/host0/bus0/target1/lun0/part4
3 69 1052289 ide/host0/bus0/target1/lun0/part5
3 70 983776 ide/host0/bus0/target1/lun0/part6
3 71 64480 ide/host0/bus0/target1/lun0/part7
22 0 648180 hdc


I found a strange thing
in 'fs/block_dev.c' there's a function 'check_disk_change'
and in 'fs/devfs/base.c' there's a function 'check_disc_changed'
They done exactly the same job. I think that one of these must be rewritted to
call the other and it's not to me to tell you which one :-).

--
Yann Droneaud <yann.droneaud@iupmime.univ-lemans.fr>
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