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wic: do not realign aligned partitions

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The change prevents additional realignment of already aligned
partition. Previously, even already aligned partitions would be pushed
forward by the amount of --align.

(From OE-Core rev: 92a1b83d928173a58280ca019ca81fdeb5ba72b5)

Signed-off-by: Maciej Borzecki <maciej.borzecki@open-rnd.pl>
Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Maciej Borzecki
2014-08-19 15:14:18 +02:00
committed by Richard Purdie
parent 5686b2d5a7
commit 50fbf19a93
1 changed files with 11 additions and 8 deletions
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19
scripts/lib/wic/utils/partitionedfs.py
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@@ -164,16 +164,19 @@ class Image:
# Calc how much the alignment is off.
align_sectors = d['offset'] % (p['align'] * 1024 / self.sector_size)
# We need to move forward to the next alignment point
align_sectors = (p['align'] * 1024 / self.sector_size) - align_sectors
msger.debug("Realignment for %s%s with %s sectors, original"
" offset %s, target alignment is %sK." %
(p['disk_name'], d['numpart'], align_sectors,
d['offset'], p['align']))
if align_sectors:
# If partition is not aligned as required, we need
# to move forward to the next alignment point
align_sectors = (p['align'] * 1024 / self.sector_size) - align_sectors
# increase the offset so we actually start the partition on right alignment
d['offset'] += align_sectors
msger.debug("Realignment for %s%s with %s sectors, original"
" offset %s, target alignment is %sK." %
(p['disk_name'], d['numpart'], align_sectors,
d['offset'], p['align']))
# increase the offset so we actually start the partition on right alignment
d['offset'] += align_sectors
p['start'] = d['offset']
d['offset'] += p['size']