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CONTAP-230978: Lock Contention in wafl_requeue_inode

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ontap-9
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core
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Issue

WAFL exempt thread timed out while obtaining lock for requeuing the inode. The lock is already held by other WAFL run thread. Which caused the thread to more than 5 seconds and led to CPU hung.

The following panic sting is observed:
[Panic String: process on cpu8 hung (wafl_exempt06) for 5002 milliseconds! in SK process wafl_exempt06 on release 9.13.1P6 (C)]

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