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vdo: add simple wrapper for getting pool percentage

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Just like with i.e. thins provide simple function for
getting percentage of VDO Pool usage (uses existing
status function).
This commit is contained in:
Zdenek Kabelac
2019-01-21 00:24:30 +01:00
parent cbadf3d370
commit 3d367f3348
2 changed files with 14 additions and 0 deletions
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13
lib/activate/activate.c
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@ -1387,6 +1387,19 @@ out:
return r;
}
int lv_vdo_pool_percent(const struct logical_volume *lv, dm_percent_t *percent)
{
struct lv_status_vdo *vdo_status;
if (!lv_vdo_pool_status(lv, 0, &vdo_status))
return_0;
*percent = vdo_status->usage;
dm_pool_destroy(vdo_status->mem);
return 1;
}
static int _lv_active(struct cmd_context *cmd, const struct logical_volume *lv)
{
struct lvinfo info;

1
lib/activate/activate.h
View File

@ -198,6 +198,7 @@ int lv_thin_pool_transaction_id(const struct logical_volume *lv,
int lv_thin_device_id(const struct logical_volume *lv, uint32_t *device_id);
int lv_vdo_pool_status(const struct logical_volume *lv, int flush,
struct lv_status_vdo **status);
int lv_vdo_pool_percent(const struct logical_volume *lv, dm_percent_t *percent);
/*
* Return number of LVs in the VG that are active.