a9b937e066
While evicting dbufs of a dnode, a marker node is added to the AVL. The marker node should be inserted in AVL tree ahead of the dbuf its trying to delete. The blkid and level is used to ensure this. However, this could go wrong there's another dbufs with the same blkid and level in DB_EVICTING state but not yet removed from AVL tree. dbuf_compare() could fail to give the right location or could cause confusion and trigger ASSERTs. To ensure that the marker is inserted before the deleting dbuf, use the pointer value of the original dbuf for comparision. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Sanjeev Bagewadi <sanjeev.bagewadi@nutanix.com> Signed-off-by: Chunwei Chen <david.chen@nutanix.com> Closes #12482 Closes #15643 |
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