Date: Sat, 9 Jul 2011 12:02:40 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sbin/geom/class/part geom_part.c gpart.8 Message-ID: <201107091202.p69C2mt8012024@repoman.freebsd.org>
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ae 2011-07-09 12:02:40 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sbin/geom/class/part geom_part.c gpart.8
Log:
SVN rev 223880 on 2011-07-09 12:02:40Z by ae
MFC r221363,221967,222263,222264,222630,222631,222819,223158,223355:
r221363:
Add "-a alignment" option to gpart(8). When it specified gpart(8)
tries to align partition start offset and size to be multiple of
alignment value.
r221967:
Some partitioning schemes want to have partitions that are aligned
with geometry. And they do recalculation of user specified parameters.
MBR, PC98, VTOC8, EBR schemes are doing that. For these schemes an
auto alignment feature (ie. gpart add -a alignment) would not work.
But it can work for GPT and BSD schemes. BSD scheme usualy is created
inside MBR, so we can use knowledge about offset of MBR partition to
calculate aligned values for BSD partitions.
Use "offset" attribute of the parent provider for better alignment.
r222263:
Fix calculation of alignment for odd values. Also do not change value
when it is already aligned.
r222264:
Simplify ALIGNDOWN macro.
r222630:
Use stripesize and stripeoffset in the automatic calculation of
partition offsets. If user requests specific alignment and
provider's stripesize is not zero, then use a least common multiple
from the stripesize and user specified value.
Also fix "gpart resize" implementation: do not try to align the partition
size, because the start offset may be not aligned. Instead align the
end offset and then calculate size. Also use stripesize and stripeoffset
for "gpart resize" command.
r222631:
Always use LCM when stripesize > 0.
r222819:
Do not use LCM from stripesize and user specified alignment value.
When user wants have specific alignment - do what user wants.
Use stripesize as alignment value in case, when some of gpart's
arguments are ommitted for automatic calculation.
Suggested by: mav
r223158:
Add "alignment" param to the request before calling gpart_autofill().
r223355:
The "size" param needs no adjusting to stripeoffset.
Reported by: Kris Moore
Revision Changes Path
1.20.2.17 +94 -33 src/sbin/geom/class/part/geom_part.c
1.7.2.16 +29 -2 src/sbin/geom/class/part/gpart.8
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