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extent scan: drop out-of-date comment
The comment describes an earlier version which submitted each extent ref as a separate Task, but now all extent refs are handled by the same Task to minimize the amount of time between processing the first and last reference to an extent. Signed-off-by: Zygo Blaxell <bees@furryterror.org>
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@ -780,10 +780,6 @@ BeesScanModeExtent::SizeTier::create_extent_map(const uint64_t bytenr, const Pro
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BtrfsExtentDataFetcher bedf(m_ctx->root_fd());
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// Collect extent ref tasks as a series of stand-alone events
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// chained after the first task created, then run the first one.
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// This prevents other threads from starting to process an
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// extent until we have all of its refs in the queue.
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const auto refs_list = make_shared<list<ExtentRef>>();
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for (const auto &i : log_ino.m_iors) {
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catch_all([&](){
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