static PedConstraint*
_primary_constraint (PedDisk* disk)
{
PedAlignment start_align;
PedAlignment end_align;
PedGeometry max_geom;
PedSector sector_size;
LinuxSpecific* arch_specific;
DasdDiskSpecific* disk_specific;
PedSector start;
PDEBUG;
arch_specific = LINUX_SPECIFIC (disk->dev);
disk_specific = disk->disk_specific;
sector_size = arch_specific->real_sector_size / disk->dev->sector_size;
if (!ped_alignment_init (&start_align, 0,
disk->dev->hw_geom.sectors * sector_size))
return NULL;
if (!ped_alignment_init (&end_align, -1,
disk->dev->hw_geom.sectors * sector_size))
return NULL;
start = (FIRST_USABLE_TRK * (long long) disk->dev->hw_geom.sectors
* (long long) arch_specific->real_sector_size
/ (long long) disk->dev->sector_size);
if (!ped_geometry_init (&max_geom, disk->dev, start, disk->dev->length))
return NULL;
return ped_constraint_new(&start_align, &end_align, &max_geom,
&max_geom, 1, disk->dev->length);
}
/**
* Return a constraint that only the given region will satisfy.
*/
PedConstraint*
ped_constraint_exact (const PedGeometry* geom)
{
PedAlignment start_align;
PedAlignment end_align;
PedGeometry start_sector;
PedGeometry end_sector;
int ok;
/* With grain size of 0, it always succeeds. */
ok = ped_alignment_init (&start_align, geom->start, 0);
assert (ok);
ok = ped_alignment_init (&end_align, geom->end, 0);
assert (ok);
ok = ped_geometry_init (&start_sector, geom->dev, geom->start, 1);
if (!ok)
return NULL;
ok = ped_geometry_init (&end_sector, geom->dev, geom->end, 1);
if (!ok)
return NULL;
return ped_constraint_new (&start_align, &end_align,
&start_sector, &end_sector, 1,
geom->dev->length);
}
static PedConstraint *reiserfs_get_resize_constraint(const PedFileSystem *
fs)
{
PedDevice *dev;
PedSector min_size;
PedGeometry full_disk;
reiserfs_fs_t *fs_info;
PedAlignment start_align;
PedGeometry start_sector;
PED_ASSERT(fs != NULL);
fs_info = fs->type_specific;
dev = fs->geom->dev;
if (!ped_alignment_init(&start_align, fs->geom->start, 0))
return NULL;
if (!ped_geometry_init(&full_disk, dev, 0, dev->length - 1))
return NULL;
if (!ped_geometry_init(&start_sector, dev, fs->geom->start, 1))
return NULL;
/*
Minsize for reiserfs is area occupied by data blocks and
metadata blocks minus free space blocks and minus bitmap
blocks which describes free space blocks.
*/
min_size = reiserfs_fs_min_size(fs_info) *
(reiserfs_fs_block_size(fs_info) / PED_SECTOR_SIZE_DEFAULT);
return ped_constraint_new(&start_align, ped_alignment_any,
&start_sector, &full_disk, min_size,
dev->length);
}
/**
* Return a constraint that only the given region will satisfy.
*/
PedConstraint*
ped_constraint_exact (const PedGeometry* geom)
{
PedAlignment start_align;
PedAlignment end_align;
PedGeometry start_sector;
PedGeometry end_sector;
ped_alignment_init (&start_align, geom->start, 0);
ped_alignment_init (&end_align, geom->end, 0);
ped_geometry_init (&start_sector, geom->dev, geom->start, 1);
ped_geometry_init (&end_sector, geom->dev, geom->end, 1);
return ped_constraint_new (&start_align, &end_align,
&start_sector, &end_sector, 1,
geom->dev->length);
}
static PedConstraint*
_amiga_get_constraint (const PedDisk *disk)
{
PedDevice *dev = disk->dev;
PedAlignment start_align, end_align;
PedGeometry max_geom;
PedSector cyl_size = dev->hw_geom.sectors * dev->hw_geom.heads;
if (!ped_alignment_init(&start_align, 0, cyl_size))
return NULL;
if (!ped_alignment_init(&end_align, -1, cyl_size))
return NULL;
if (!ped_geometry_init(&max_geom, dev, MAX_RDB_BLOCK + 1,
dev->length - MAX_RDB_BLOCK - 1))
return NULL;
return ped_constraint_new (&start_align, &end_align,
&max_geom, &max_geom, 1, dev->length);
}
static PedConstraint*
_primary_constraint (PedDisk* disk)
{
PedDevice* dev = disk->dev;
PedAlignment start_align;
PedAlignment end_align;
PedGeometry max_geom;
PedSector cylinder_size;
cylinder_size = dev->hw_geom.sectors * dev->hw_geom.heads;
if (!ped_alignment_init (&start_align, 0, cylinder_size))
return NULL;
if (!ped_alignment_init (&end_align, -1, cylinder_size))
return NULL;
if (!ped_geometry_init (&max_geom, dev, cylinder_size,
dev->length - cylinder_size))
return NULL;
return ped_constraint_new (&start_align, &end_align, &max_geom,
&max_geom, 1, dev->length);
}
PedConstraint *
hfsplus_get_resize_constraint (const PedFileSystem *fs)
{
PedDevice* dev = fs->geom->dev;
PedAlignment start_align;
PedGeometry start_sector;
PedGeometry full_dev;
PedSector min_size;
if (!ped_alignment_init (&start_align, fs->geom->start, 0))
return NULL;
if (!ped_geometry_init (&start_sector, dev, fs->geom->start, 1))
return NULL;
if (!ped_geometry_init (&full_dev, dev, 0, dev->length - 1))
return NULL;
min_size = hfsplus_get_min_size (fs);
if (!min_size) return NULL;
return ped_constraint_new (&start_align, ped_alignment_any,
&start_sector, &full_dev, min_size,
fs->geom->length);
}
PedConstraint *
hfs_get_resize_constraint (const PedFileSystem *fs)
{
PedDevice* dev = fs->geom->dev;
PedAlignment start_align;
PedGeometry start_sector;
PedGeometry full_dev;
PedSector min_size;
if (!ped_alignment_init (&start_align, fs->geom->start, 0))
return NULL;
if (!ped_geometry_init (&start_sector, dev, fs->geom->start, 1))
return NULL;
if (!ped_geometry_init (&full_dev, dev, 0, dev->length - 1))
return NULL;
/* 2 = last two sectors (alternate MDB and unused sector) */
min_size = hfs_get_empty_end(fs) + 2;
if (min_size == 2) return NULL;
return ped_constraint_new (&start_align, ped_alignment_any,
&start_sector, &full_dev, min_size,
fs->geom->length);
}