shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
Code Releases Activity

Extend _for_each_pv() to allow termination without error.

Browse Source
This commit is contained in:
Alasdair Kergon 2006-10-07 12:41:06 +00:00
parent 7dce16f234
commit b6f8552074
2 changed files with 26 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
WHATS_NEW
View File

@ -1,5 +1,7 @@
Version 2.02.11 -
=====================================
Extend _for_each_pv() to allow termination without error.
Abstract _is_contiguous().
Remove duplicated pv arg from _check_contiguous().
Accept regionsize with lvconvert.
Add report columns with underscore before field names ending 'size'.

36
lib/metadata/lv_manip.c
View File

@ -670,6 +670,8 @@ static int _alloc_parallel_area(struct alloc_handle *ah, uint32_t needed,
* Call fn for each AREA_PV used by the LV segment at lv:le of length *max_seg_len.
* If any constituent area contains more than one segment, max_seg_len is
* reduced to cover only the first.
* fn should return 0 on error, 1 to continue scanning or >1 to terminate without error.
* In the last case, this function passes on the return code.
*/
static int _for_each_pv(struct cmd_context *cmd, struct logical_volume *lv,
uint32_t le, uint32_t len, uint32_t *max_seg_len,
@ -679,6 +681,7 @@ static int _for_each_pv(struct cmd_context *cmd, struct logical_volume *lv,
struct lv_segment *seg;
uint32_t s;
uint32_t remaining_seg_len, area_len, area_multiple;
int r;
if (!(seg = find_seg_by_le(lv, le))) {
log_error("Failed to find segment for %s extent %" PRIu32,
@ -698,20 +701,29 @@ static int _for_each_pv(struct cmd_context *cmd, struct logical_volume *lv,
area_multiple = segtype_is_striped(seg->segtype) ? seg->area_count : 1;
area_len = remaining_seg_len / area_multiple ? : 1;
for (s = 0; s < seg->area_count; s++)
for (s = 0; s < seg->area_count; s++) {
if (seg_type(seg, s) == AREA_LV) {
if (!_for_each_pv(cmd, seg_lv(seg, s),
seg_le(seg, s) + (le - seg->le) / area_multiple,
area_len, max_seg_len, fn, data))
return_0;
} else if ((seg_type(seg, s) == AREA_PV) &&
!fn(cmd, seg_pvseg(seg, s), data))
return_0;
if (!(r = _for_each_pv(cmd, seg_lv(seg, s),
seg_le(seg, s) +
(le - seg->le) / area_multiple,
area_len, max_seg_len, fn,
data)))
stack;
} else if (seg_type(seg, s) == AREA_PV)
if (!(r = fn(cmd, seg_pvseg(seg, s), data)))
stack;
if (seg_is_mirrored(seg) && seg->log_lv &&
!_for_each_pv(cmd, seg->log_lv, 0, MIRROR_LOG_SIZE,
NULL, fn, data))
return_0;
if (r != 1)
return r;
}
if (seg_is_mirrored(seg) && seg->log_lv) {
if (!(r = _for_each_pv(cmd, seg->log_lv, 0, MIRROR_LOG_SIZE,
NULL, fn, data)))
stack;
if (r != 1)
return r;
}
/* FIXME Add snapshot cow LVs etc. */