docs(cache): write down the producer half of the leftover naming contract #8
@@ -29,8 +29,9 @@
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# consumer still WALKING the old generation has its entries unlinked out from
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# consumer still WALKING the old generation has its entries unlinked out from
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# under it, and `cp -al` does not report a subtree that was removed before it
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# under it, and `cp -al` does not report a subtree that was removed before it
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# read the parent's listing. That is a silently truncated clone — the failure
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# read the parent's listing. That is a silently truncated clone — the failure
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# mode this script's own selftest (scenario 8) reproduces against the
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# mode seed-target-dir-selftest.sh's scenario 8b reproduces from the consumer's
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# unguarded version.
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# side, against the unguarded version. (This script's own selftest also has a
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# scenario 8; that one is the abandoned-reader-marker case, not this.)
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#
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#
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# So the unlink is interlocked with the consume side rather than
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# So the unlink is interlocked with the consume side rather than
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# unconditional: after the swap, this script waits for every in-flight reader
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# unconditional: after the swap, this script waits for every in-flight reader
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