Bug#582281: Partition starting sector and size incorrect for reserved CMS minidisk on FBA DASD with blocksize > 512 using DIAG driver

[Stephen Powell <zlinuxman@wowway.com>]

Dear IBM Linux Kernel development team,

This is an official bug report.

See Debian bug report number 582281

   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=582281

for details.  From my research it appears that this bug was introduced
between Linux kernel version 2.6.30.10 and 2.6.31.  That is when
blocksize in fs/partitions/ibm.c, function ibm_partition, was changed
from

   blocksize = bdev_hardsect_size(bdev)

to

   blocksize = bdev_logical_block_size(bdev)

This apparently solved one problem but caused another one.  A link to
a patch which fixes the problem is present in the Debian bug log.
Please copy 582281@bugs.debian.org on correspondence.

Respectfully submitted,
Stephen Powell

-- 
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