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Improve cylinder alignment for partitions less than a disk cylinder

This commit is contained in:
Curtis Gedak 2010-05-26 16:57:59 -06:00
parent 95c9577d8f
commit f861501390
1 changed files with 8 additions and 2 deletions
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10
src/GParted_Core.cc
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@ -373,6 +373,12 @@ Glib::ustring GParted_Core::get_thread_status_message( )
bool GParted_Core::snap_to_cylinder( const Device & device, Partition & partition, Glib::ustring & error )
{
Sector diff = 0;
//Determine if partition size is less than a disk cylinder
bool less_than_cylinder = false;
if ( ( partition .sector_end - partition .sector_start ) < device .cylsize )
less_than_cylinder = true;
if ( partition.type == TYPE_LOGICAL ||
partition.sector_start == device .sectors
)
@ -396,7 +402,7 @@ bool GParted_Core::snap_to_cylinder( const Device & device, Partition & partitio
}
if ( diff && ! partition .strict_start )
{
if ( diff < ( device .cylsize / 2 ) )
if ( diff < ( device .cylsize / 2 ) || less_than_cylinder )
partition .sector_start -= diff ;
else
partition .sector_start += (device .cylsize - diff ) ;
@ -405,7 +411,7 @@ bool GParted_Core::snap_to_cylinder( const Device & device, Partition & partitio
diff = (partition .sector_end +1) % device .cylsize ;
if ( diff )
{
if ( diff < ( device .cylsize / 2 ) )
if ( diff < ( device .cylsize / 2 ) && ! less_than_cylinder )
partition .sector_end -= diff ;
else
partition .sector_end += (device .cylsize - diff ) ;