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os/bluestore/BitAllocator: batch is_allocated bit checks #10704

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Aug 12, 2016
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os/bluestore/BitAllocator: batch is_allocated bit checks #10704

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10 changes: 3 additions & 7 deletions src/os/bluestore/BitAllocator.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -143,14 +143,10 @@ bmap_t BmapEntry::atomic_fetch()
return m_bits;
}

bool BmapEntry::is_allocated(int64_t start_bit, int64_t num_bits)
bool BmapEntry::is_allocated(int64_t offset, int64_t num_bits)
{
for (int i = start_bit; i < num_bits + start_bit; i++) {
if (!check_bit(i)) {
return false;
}
}
return true;
bmap_t bmask = BmapEntry::align_mask(num_bits) >> offset;
return ((m_bits & bmask) == bmask);
}

void BmapEntry::clear_bit(int bit)
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