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allocation: Fix alloc anywhere with parity.

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Take account of parity areas with alloc anywhere in
_calc_required_extents.  Extents beyond area_count were treated
incorrectly as mirror logs.
This commit is contained in:
Alasdair G Kergon 2014-05-14 16:25:43 +01:00
parent 422b3b0fb5
commit 3b989e317f
2 changed files with 3 additions and 3 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.107 - Version 2.02.107 -
================================== ==================================
Take account of parity areas with alloc anywhere in _calc_required_extents.
Use proper uint64 casting for calculation of cache metadata size. Use proper uint64 casting for calculation of cache metadata size.
Better support for nesting of blocking signals. Better support for nesting of blocking signals.
Use only sigaction handler and drop duplicate signal handler. Use only sigaction handler and drop duplicate signal handler.

5
lib/metadata/lv_manip.c
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@ -1432,8 +1432,7 @@ static int _alloc_parallel_area(struct alloc_handle *ah, uint32_t max_to_allocat
struct alloced_area *aa; struct alloced_area *aa;
struct pv_area *pva; struct pv_area *pva;
total_area_count = ah->area_count + alloc_state->log_area_count_still_needed; total_area_count = ah->area_count + ah->parity_count + alloc_state->log_area_count_still_needed;
total_area_count += ah->parity_count;
if (!total_area_count) { if (!total_area_count) {
log_warn(INTERNAL_ERROR "_alloc_parallel_area called without any allocation to do."); log_warn(INTERNAL_ERROR "_alloc_parallel_area called without any allocation to do.");
return 1; return 1;
@ -1980,7 +1979,7 @@ static uint32_t _calc_required_extents(struct alloc_handle *ah, struct pv_area *
* reduce amount we're looking for. * reduce amount we're looking for.
*/ */
if (alloc == ALLOC_ANYWHERE) { if (alloc == ALLOC_ANYWHERE) {
if (ix_pva >= ah->area_count) if (ix_pva >= ah->area_count + ah->parity_count)
required = ah->log_len; required = ah->log_len;
} else if (required < ah->log_len) } else if (required < ah->log_len)
required = ah->log_len; required = ah->log_len;