shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-10-28 20:25:52 +03:00
Code Releases Activity

lvmanip: add lv_is_snapshot

Browse Source 
Add new test for  lv_is_snapshot().
Also move few other bitchecks into same place as remaining bit tests.

TODO: drop lv_is_merging_origin() and keep using lv_is_merging().
This commit is contained in:
Zdenek Kabelac 2016-01-07 14:30:21 +01:00
parent 01228b692b
commit 526297296f
3 changed files with 8 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/metadata/metadata-exported.h
View File

@ -84,7 +84,7 @@
//#define POSTORDER_FLAG UINT64_C(0x0000000002000000) /* Not real flags, reserved for
//#define POSTORDER_OPEN_FLAG UINT64_C(0x0000000004000000) temporary use inside vg_read_internal. */
//#define VIRTUAL_ORIGIN UINT64_C(0x0000000008000000) /* LV - internal use only */
#define VIRTUAL_ORIGIN UINT64_C(0x0000000008000000) /* LV - internal use only */
#define MERGING UINT64_C(0x0000000010000000) /* LV SEG */
@ -191,8 +191,11 @@
#define lv_is_locked(lv) (((lv)->status & LOCKED) ? 1 : 0)
#define lv_is_virtual(lv) (((lv)->status & VIRTUAL) ? 1 : 0)
#define lv_is_merging(lv) (((lv)->status & MERGING) ? 1 : 0)
#define lv_is_merging_origin(lv) (lv_is_merging(lv))
#define lv_is_snapshot(lv) (((lv)->status & SNAPSHOT) ? 1 : 0)
#define lv_is_converting(lv) (((lv)->status & CONVERTING) ? 1 : 0)
#define lv_is_external_origin(lv) (((lv)->external_count > 0) ? 1 : 0)
#define lv_is_virtual_origin(lv) (((lv)->status & VIRTUAL_ORIGIN) ? 1 : 0)
#define lv_is_thin_volume(lv) (((lv)->status & THIN_VOLUME) ? 1 : 0)
#define lv_is_thin_pool(lv) (((lv)->status & THIN_POOL) ? 1 : 0)
@ -1004,12 +1007,10 @@ struct lv_segment *get_only_segment_using_this_lv(const struct logical_volume *l
* Useful functions for managing snapshots.
*/
int lv_is_origin(const struct logical_volume *lv);
int lv_is_virtual_origin(const struct logical_volume *lv);
int lv_is_thin_origin(const struct logical_volume *lv, unsigned *snapshot_count);
int lv_is_cache_origin(const struct logical_volume *lv);
int lv_is_cow(const struct logical_volume *lv);
int lv_is_merging_origin(const struct logical_volume *origin);
int lv_is_merging_cow(const struct logical_volume *snapshot);
int lv_is_merging_cow(const struct logical_volume *cow);
uint32_t cow_max_extents(const struct logical_volume *origin, uint32_t chunk_size);
int cow_has_min_chunks(const struct volume_group *vg, uint32_t cow_extents, uint32_t chunk_size);
int lv_is_cow_covering_origin(const struct logical_volume *lv);

1
lib/metadata/metadata.h
View File

@ -61,7 +61,6 @@
#define PRECOMMITTED UINT64_C(0x00200000) /* VG - internal use only */
#define POSTORDER_FLAG UINT64_C(0x02000000) /* Not real flags, reserved for */
#define POSTORDER_OPEN_FLAG UINT64_C(0x04000000) /* temporary use inside vg_read_internal. */
#define VIRTUAL_ORIGIN UINT64_C(0x08000000) /* LV - internal use only */
#define SHARED UINT64_C(0x00000800) /* VG */

16
lib/metadata/snapshot_manip.c
View File

@ -129,21 +129,11 @@ int lv_is_visible(const struct logical_volume *lv)
return lv->status & VISIBLE_LV ? 1 : 0;
}
int lv_is_virtual_origin(const struct logical_volume *lv)
int lv_is_merging_cow(const struct logical_volume *cow)
{
return (lv->status & VIRTUAL_ORIGIN) ? 1 : 0;
}
struct lv_segment *snap_seg = find_snapshot(cow);
int lv_is_merging_origin(const struct logical_volume *origin)
{
return lv_is_merging(origin);
}
int lv_is_merging_cow(const struct logical_volume *snapshot)
{
struct lv_segment *snap_seg = find_snapshot(snapshot);
/* checks lv_segment's status to see if cow is merging */
/* checks lv_segment's status to see if snapshot is merging */
return (snap_seg && (snap_seg->status & MERGING)) ? 1 : 0;
}