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thin: report thin device id

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Support   lvs -o+thin_id  to report thin device id.
This device_id is connection between kernel and lvm2 user space thin
metadata.
This commit is contained in:
Zdenek Kabelac 2013-11-11 10:05:45 +01:00
parent 6ca832ceaf
commit 37b7c67079
6 changed files with 18 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.105 -
=====================================
Add reporting of thin_id device id for thin volumes.
Fix reporting of empty numerical values.
Simplify reporting code.

1
lib/display/display.c
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@ -600,6 +600,7 @@ int lvdisplay_full(struct cmd_context *cmd,
if (lv_is_thin_volume(lv)) {
seg = first_seg(lv);
log_print("LV Pool name %s", seg->pool_lv->name);
log_print("LV Thin device ID %u", seg->device_id);
if (seg->origin)
log_print("LV Thin origin name %s",
seg->origin->name);

1
lib/report/columns.h
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@ -122,6 +122,7 @@ FIELD(SEGS, seg, NUM, "#Thins", list, 4, thincount, thin_count, "For thin pools,
FIELD(SEGS, seg, STR, "Discards", list, 8, discards, discards, "For thin pools, how discards are handled.", 0)
FIELD(SEGS, seg, NUM, "Zero", list, 4, thinzero, zero, "For thin pools, if zeroing is enabled.", 0)
FIELD(SEGS, seg, NUM, "TransId", list, 4, transactionid, transaction_id, "For thin pools, the transaction id.", 0)
FIELD(SEGS, seg, NUM, "ThId", list, 4, thinid, thin_id, "For thin volume, the thin device id.", 0)
FIELD(SEGS, seg, NUM, "Start", list, 5, segstart, seg_start, "Offset within the LV to the start of the segment in current units.", 0)
FIELD(SEGS, seg, NUM, "Start", list, 5, segstartpe, seg_start_pe, "Offset within the LV to the start of the segment in physical extents.", 0)
FIELD(SEGS, seg, NUM, "SSize", list, 5, segsize, seg_size, "Size of segment in current units.", 0)

2
lib/report/properties.c
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@ -307,6 +307,8 @@ GET_LVSEG_NUM_PROPERTY_FN(zero, lvseg->zero_new_blocks)
#define _zero_set prop_not_implemented_set
GET_LVSEG_NUM_PROPERTY_FN(transaction_id, lvseg->transaction_id)
#define _transaction_id_set prop_not_implemented_set
GET_LVSEG_NUM_PROPERTY_FN(thin_id, lvseg->device_id)
#define _thin_id_set prop_not_implemented_set
GET_LVSEG_STR_PROPERTY_FN(discards, lvseg_discards_dup(lvseg->lv->vg->vgmem, lvseg))
#define _discards_set prop_not_implemented_set
GET_LVSEG_NUM_PROPERTY_FN(seg_start, (SECTOR_SIZE * lvseg_start(lvseg)))

12
lib/report/report.c
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@ -610,6 +610,18 @@ static int _transactionid_disp(struct dm_report *rh, struct dm_pool *mem,
return _field_set_value(field, "", &_minusone64);
}
static int _thinid_disp(struct dm_report *rh, struct dm_pool *mem,
struct dm_report_field *field,
const void *data, void *private)
{
const struct lv_segment *seg = (const struct lv_segment *) data;
if (seg_is_thin_volume(seg))
return dm_report_field_uint32(rh, field, &seg->device_id);
return _field_set_value(field, "", &_minusone64);
}
static int _discards_disp(struct dm_report *rh, struct dm_pool *mem,
struct dm_report_field *field,
const void *data, void *private)

1
test/shell/lvcreate-thin.sh
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@ -129,6 +129,7 @@ lvcreate -V2G --type thin --thinpool pool --name $vg/lv12 $vg
check lv_exists $vg lv1 lv2 lv3 lv4 lv5 lv6 lv7 lv8 lv9 lv10 lv11 lv12
check vg_field $vg lv_count 19
check lv_field $vg/lv1 thin_id 7
lvremove -ff $vg
check vg_field $vg lv_count 0