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alloc avoids parallel pvs when supplied

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This commit is contained in:
Alasdair Kergon 2005-11-24 21:23:55 +00:00
parent c0a33e10ae
commit e3195fecf1
1 changed files with 18 additions and 9 deletions
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23
lib/metadata/lv_manip.c
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@ -664,10 +664,12 @@ static int _find_segment_space(struct alloc_handle *ah, alloc_policy_t alloc,
struct list *pvms, struct pv_area **areas,
uint32_t areas_size, unsigned can_split,
struct lv_segment *prev_lvseg,
uint32_t *allocated, uint32_t needed)
uint32_t *allocated, uint32_t needed,
struct list *parallel_pvs)
{
struct pv_map *pvm;
struct pv_area *pva;
struct pv_list *pvl;
unsigned already_found_one = 0;
unsigned contiguous = 0, contiguous_count = 0;
unsigned ix;
@ -699,11 +701,19 @@ static int _find_segment_space(struct alloc_handle *ah, alloc_policy_t alloc,
if (list_empty(&pvm->areas))
continue; /* Next PV */
if (alloc != ALLOC_ANYWHERE) {
/* Don't allocate onto the log pv */
if ((alloc != ALLOC_ANYWHERE) && ah->log_count &&
(pvm->pv == ah->log_area.pv))
if (ah->log_count &&
pvm->pv == ah->log_area.pv)
continue; /* Next PV */
/* Avoid PVs used by existing parallel areas */
if (parallel_pvs)
list_iterate_items(pvl, parallel_pvs)
if (pvm->pv == pvl->pv)
goto next_pv;
}
already_found_one = 0;
/* First area in each list is the largest */
list_iterate_items(pva, &pvm->areas) {
@ -779,7 +789,7 @@ static int _find_parallel_space(struct alloc_handle *ah, alloc_policy_t alloc,
{
return _find_segment_space(ah, alloc, pvms, areas, areas_size,
can_split, prev_lvseg,
allocated, needed);
allocated, needed, NULL);
}
/*
@ -804,7 +814,7 @@ static int _allocate(struct alloc_handle *ah,
struct list *pvms;
uint32_t areas_size;
if (allocated >= new_extents) {
if (allocated >= new_extents && !ah->log_count) {
log_error("_allocate called with no work to do!");
return 1;
}
@ -1122,8 +1132,7 @@ int lv_add_more_mirrored_areas(struct logical_volume *lv,
return 0;
}
list_iterate_items(seg, &lv->segments)
break;
seg = first_seg(lv);
old_area_count = seg->area_count;
new_area_count = old_area_count + num_extra_areas;