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[thin_delta] Fix bug when detecting right_only mappings

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This commit is contained in:
Joe Thornber 2014-06-17 16:20:38 +01:00
parent c8f408ac3c
commit e4d82d04bd
1 changed files with 8 additions and 1 deletions
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9
thin-provisioning/thin_delta.cc
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@ -109,6 +109,13 @@ namespace {
uint64_t vbegin_, dbegin_, len_;
};
ostream &operator <<(ostream &out, mapping const &m) {
out << "mapping[vbegin = " << m.vbegin_
<< ", dbegin = " << m.dbegin_
<< ", len = " << m.len_ << "]";
return out;
}
typedef std::deque<mapping> mapping_deque;
// Builds up an in core rep of the mappings for a device.
@ -409,7 +416,7 @@ namespace {
e.left_only(left_mapping.vbegin_, left_mapping.dbegin_, delta);
left_mapping.consume(delta);
} else if (left_mapping.vbegin_ > left_mapping.vbegin_) {
} else if (left_mapping.vbegin_ > right_mapping.vbegin_) {
uint64_t delta = min<uint64_t>(right_mapping.len_, left_mapping.vbegin_ - right_mapping.vbegin_);
e.right_only(right_mapping.vbegin_, right_mapping.dbegin_, delta);
right_mapping.consume(delta);