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authorMartin K. Petersen <martin.petersen@oracle.com>2009-12-29 08:35:35 +0100
committerJens Axboe <jens.axboe@oracle.com>2009-12-29 08:35:35 +0100
commit81744ee44ab2845c16ffd7d6f762f7b4a49a4750 (patch)
treec3d0cca0e71080ecd8423cef8af1c632fc444764 /block/blk-barrier.c
parent2f7a2d89a8b5915d89ad9ebeb0065db7d5831cea (diff)
block: Fix incorrect alignment offset reporting and update documentation
queue_sector_alignment_offset returned the wrong value which caused partitions to report an incorrect alignment_offset. Since offset alignment calculation is needed several places it has been split into a separate helper function. The topology stacking function has been updated accordingly. Furthermore, comments have been added to clarify how the stacking function works. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Tested-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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