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DDF: add support of --data-offset when creating array. 

Infrastructure is there, so use it.

This requires making sure that ->data_offset is correctly set, even
for containers.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2014-05-06 14:52:24 +10:00
parent fca6552000
commit 476066a3d5
2 changed files with 16 additions and 12 deletions
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6
Create.c
View File

@ -285,6 +285,12 @@ int Create(struct supertype *st, char *mddev,
info.array.active_disks = 0;
info.array.working_disks = 0;
dnum = 0;
for (dv = devlist; dv ; dv = dv->next)
if (data_offset == VARIABLE_OFFSET)
dv->data_offset = INVALID_SECTORS;
else
dv->data_offset = data_offset;
for (dv=devlist; dv && !have_container; dv=dv->next, dnum++) {
char *dname = dv->devname;
unsigned long long freesize;

22
super-ddf.c
View File

@ -2337,11 +2337,6 @@ static int init_super_ddf(struct supertype *st,
struct phys_disk *pd;
struct virtual_disk *vd;
if (data_offset != INVALID_SECTORS) {
pr_err("data-offset not supported by DDF\n");
return 0;
}
if (st->sb)
return init_super_ddf_bvd(st, info, size, name, homehost, uuid,
data_offset);
@ -2745,7 +2740,8 @@ static int init_super_ddf_bvd(struct supertype *st,
#ifndef MDASSEMBLE
static void add_to_super_ddf_bvd(struct supertype *st,
mdu_disk_info_t *dk, int fd, char *devname)
mdu_disk_info_t *dk, int fd, char *devname,
unsigned long long data_offset)
{
/* fd and devname identify a device within the ddf container (st).
* dk identifies a location in the new BVD.
@ -2789,7 +2785,7 @@ static void add_to_super_ddf_bvd(struct supertype *st,
if (ddf->currentconf->block_sizes)
blocks = ddf->currentconf->block_sizes[dk->raid_disk];
pos = find_space(ddf, dl, INVALID_SECTORS, &blocks);
pos = find_space(ddf, dl, data_offset, &blocks);
if (pos == INVALID_SECTORS)
return;
@ -2878,7 +2874,7 @@ static int add_to_super_ddf(struct supertype *st,
__u32 *tptr;
if (ddf->currentconf) {
add_to_super_ddf_bvd(st, dk, fd, devname);
add_to_super_ddf_bvd(st, dk, fd, devname, data_offset);
return 0;
}
@ -3288,6 +3284,7 @@ static __u64 avail_size_ddf(struct supertype *st, __u64 devsize,
static int reserve_space(struct supertype *st, int raiddisks,
unsigned long long size, int chunk,
unsigned long long data_offset,
unsigned long long *freesize)
{
/* Find 'raiddisks' spare extents at least 'size' big (but
@ -3308,7 +3305,7 @@ static int reserve_space(struct supertype *st, int raiddisks,
for (dl = ddf->dlist ; dl ; dl=dl->next) {
unsigned long long minsize = ULLONG_MAX;
find_space(ddf, dl, INVALID_SECTORS, &minsize);
find_space(ddf, dl, data_offset, &minsize);
if (minsize >= size && minsize >= (unsigned)chunk) {
cnt++;
dl->esize = minsize;
@ -3410,7 +3407,8 @@ static int validate_geometry_ddf(struct supertype *st,
* chosen so that add_to_super/getinfo_super
* can return them.
*/
return reserve_space(st, raiddisks, size, *chunk, freesize);
return reserve_space(st, raiddisks, size, *chunk,
data_offset, freesize);
}
return 1;
}
@ -3556,7 +3554,7 @@ static int validate_geometry_ddf_bvd(struct supertype *st,
if (minsize == 0)
minsize = 8;
for (dl = ddf->dlist; dl ; dl = dl->next) {
if (find_space(ddf, dl, INVALID_SECTORS, &minsize)
if (find_space(ddf, dl, data_offset, &minsize)
!= INVALID_SECTORS)
dcnt++;
}
@ -3587,7 +3585,7 @@ static int validate_geometry_ddf_bvd(struct supertype *st,
return 0;
}
maxsize = ULLONG_MAX;
find_space(ddf, dl, INVALID_SECTORS, &maxsize);
find_space(ddf, dl, data_offset, &maxsize);
*freesize = maxsize;
// FIXME here I am