Pull the PT_ATTACH case out of the 'sendsig:' block.
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Authored by jhb on Nov 13 2017, 8:14 PM.

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kib

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rS325777: Pull the PT_ATTACH case out of the 'sendsig:' block.

Summary

Most of the conditionals in the 'sendsig:' block are now only different
for PT_ATTACH vs other continue requests. Pull the PT_ATTACH-specific
logic up into the PT_ATTACH case and simplify the 'sendsig:' block. This
also permits moving the unlock of proctree_lock above the sendsig: label
since PT_KILL doesn't hold the lock and and the other cases all fall
through to the label.

Test Plan