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Add vg_mda_size and vg_mda_free functions.

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Add supporting functions to get vg_mda_size and vg_mda_free fields.
Should be no functional change.
This commit is contained in:
Dave Wysochanski 2010-08-20 12:43:49 +00:00
parent 586b56b18c
commit 69d67dc2ca
3 changed files with 50 additions and 33 deletions
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42
lib/metadata/metadata.c
View File

@ -1217,6 +1217,48 @@ int vg_set_mda_copies(struct volume_group *vg, uint32_t mda_copies)
return 1; return 1;
} }
uint64_t find_min_mda_size(struct dm_list *mdas)
{
uint64_t min_mda_size = UINT64_MAX, mda_size;
struct metadata_area *mda;
dm_list_iterate_items(mda, mdas) {
if (!mda->ops->mda_total_sectors)
continue;
mda_size = mda->ops->mda_total_sectors(mda);
if (mda_size < min_mda_size)
min_mda_size = mda_size;
}
if (min_mda_size == UINT64_MAX)
min_mda_size = UINT64_C(0);
return min_mda_size;
}
uint64_t vg_mda_size(const struct volume_group *vg)
{
return find_min_mda_size(&vg->fid->metadata_areas_in_use);
}
uint64_t vg_mda_free(const struct volume_group *vg)
{
uint64_t freespace = UINT64_MAX, mda_free;
struct metadata_area *mda;
dm_list_iterate_items(mda, &vg->fid->metadata_areas_in_use) {
if (!mda->ops->mda_free_sectors)
continue;
mda_free = mda->ops->mda_free_sectors(mda);
if (mda_free < freespace)
freespace = mda_free;
}
if (freespace == UINT64_MAX)
freespace = UINT64_C(0);
return freespace;
}
int vg_set_extent_size(struct volume_group *vg, uint32_t new_size) int vg_set_extent_size(struct volume_group *vg, uint32_t new_size)
{ {
uint32_t old_size = vg->extent_size; uint32_t old_size = vg->extent_size;

4
lib/metadata/metadata.h
View File

@ -416,4 +416,8 @@ int add_pv_to_vg(struct volume_group *vg, const char *pv_name,
int vg_mark_partial_lvs(struct volume_group *vg); int vg_mark_partial_lvs(struct volume_group *vg);
int is_mirror_image_removable(struct logical_volume *mimage_lv, void *baton); int is_mirror_image_removable(struct logical_volume *mimage_lv, void *baton);
uint64_t find_min_mda_size(struct dm_list *mdas);
uint64_t vg_mda_size(const struct volume_group *vg);
uint64_t vg_mda_free(const struct volume_group *vg);
#endif #endif

37
lib/report/report.c
View File

@ -958,25 +958,6 @@ static int _pvmdafree_disp(struct dm_report *rh, struct dm_pool *mem,
return _size64_disp(rh, mem, field, &freespace, private); return _size64_disp(rh, mem, field, &freespace, private);
} }
static uint64_t _find_min_mda_size(struct dm_list *mdas)
{
uint64_t min_mda_size = UINT64_MAX, mda_size;
struct metadata_area *mda;
dm_list_iterate_items(mda, mdas) {
if (!mda->ops->mda_total_sectors)
continue;
mda_size = mda->ops->mda_total_sectors(mda);
if (mda_size < min_mda_size)
min_mda_size = mda_size;
}
if (min_mda_size == UINT64_MAX)
min_mda_size = UINT64_C(0);
return min_mda_size;
}
static int _pvmdasize_disp(struct dm_report *rh, struct dm_pool *mem, static int _pvmdasize_disp(struct dm_report *rh, struct dm_pool *mem,
struct dm_report_field *field, struct dm_report_field *field,
const void *data, void *private) const void *data, void *private)
@ -987,7 +968,7 @@ static int _pvmdasize_disp(struct dm_report *rh, struct dm_pool *mem,
/* PVs could have 2 mdas of different sizes (rounding effect) */ /* PVs could have 2 mdas of different sizes (rounding effect) */
if ((info = info_from_pvid(pvid, 0))) if ((info = info_from_pvid(pvid, 0)))
min_mda_size = _find_min_mda_size(&info->mdas); min_mda_size = find_min_mda_size(&info->mdas);
return _size64_disp(rh, mem, field, &min_mda_size, private); return _size64_disp(rh, mem, field, &min_mda_size, private);
} }
@ -999,7 +980,7 @@ static int _vgmdasize_disp(struct dm_report *rh, struct dm_pool *mem,
const struct volume_group *vg = (const struct volume_group *) data; const struct volume_group *vg = (const struct volume_group *) data;
uint64_t min_mda_size; uint64_t min_mda_size;
min_mda_size = _find_min_mda_size(&vg->fid->metadata_areas_in_use); min_mda_size = vg_mda_size(vg);
return _size64_disp(rh, mem, field, &min_mda_size, private); return _size64_disp(rh, mem, field, &min_mda_size, private);
} }
@ -1009,19 +990,9 @@ static int _vgmdafree_disp(struct dm_report *rh, struct dm_pool *mem,
const void *data, void *private) const void *data, void *private)
{ {
const struct volume_group *vg = (const struct volume_group *) data; const struct volume_group *vg = (const struct volume_group *) data;
uint64_t freespace = UINT64_MAX, mda_free; uint64_t freespace;
struct metadata_area *mda;
dm_list_iterate_items(mda, &vg->fid->metadata_areas_in_use) { freespace = vg_mda_free(vg);
if (!mda->ops->mda_free_sectors)
continue;
mda_free = mda->ops->mda_free_sectors(mda);
if (mda_free < freespace)
freespace = mda_free;
}
if (freespace == UINT64_MAX)
freespace = UINT64_C(0);
return _size64_disp(rh, mem, field, &freespace, private); return _size64_disp(rh, mem, field, &freespace, private);
} }