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Print low_water_mark only when it has some value

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Do not expose low_water_mark in mda yet, if it has no use.
We do not allow to be set via current lvm tool code.
Usage needs to be clarified first.
This commit is contained in:
Zdenek Kabelac 2011-10-20 10:30:39 +00:00
parent 3f53c059e9
commit d1a259d867
1 changed files with 5 additions and 2 deletions
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7
lib/thin/thin.c
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@ -113,7 +113,8 @@ static int _thin_pool_text_import(struct lv_segment *seg,
if (!dm_config_get_uint64(sn, "transaction_id", &seg->transaction_id))
return SEG_LOG_ERROR("Could not read transaction_id for");
if (!dm_config_get_uint64(sn, "low_water_mark", &seg->low_water_mark))
if (dm_config_has_node(sn, "low_water_mark") &&
!dm_config_get_uint64(sn, "low_water_mark", &seg->low_water_mark))
return SEG_LOG_ERROR("Could not read low_water_mark");
if (!dm_config_get_uint32(sn, "data_block_size", &seg->data_block_size))
@ -154,9 +155,11 @@ static int _thin_pool_text_export(const struct lv_segment *seg, struct formatter
outf(f, "pool = \"%s\"", seg_lv(seg, 0)->name);
outf(f, "metadata = \"%s\"", seg->pool_metadata_lv->name);
outf(f, "transaction_id = %" PRIu64, seg->transaction_id);
outf(f, "low_water_mark = %" PRIu64, seg->low_water_mark);
outf(f, "data_block_size = %d", seg->data_block_size);
if (seg->low_water_mark)
outf(f, "low_water_mark = %" PRIu64, seg->low_water_mark);
if (seg->zero_new_blocks)
outf(f, "zero_new_blocks = 1");