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由 Chris Mason 提交于
Commits are fairly expensive, and so btrfs has code to sit around for a while during the commit and let new writers come in. But, while we're sitting there, new delayed refs might be added, and those can be expensive to process as well. Unless the transaction is very very young, it makes sense to go ahead and let the commit finish without hanging around. The commit grow loop isn't as important as it used to be, the fsync logging code handles most performance critical syncs now. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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