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DAOS-16693 telemetry: Avoid race between init/read
In rare cases, a reader may attempt to access a telemetry node after it has been added to the tree, but before it has been fully initialized. Use an atomic to prevent reads before the initialization has completed. Readers will instead get a -DER_AGAIN instead of crashing. Features: telemetry Required-githooks: true Change-Id: I12281a7db7ef70d5f827547af1233b7a6619ae6d Signed-off-by: Michael MacDonald <[email protected]>
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