1e29379d69 Fix potential deadlock (practicalswift)
d58dc9f943 Add lock annotations (cs_args) (practicalswift)
db5e9d3c88 Add missing locks (cs_args) (practicalswift)
Pull request description:
* Add missing `cs_args` locks
* Add Clang thread safety annotations for variables guarded by `cs_args`
Tree-SHA512: bc562dbddf24a287bcf9bf902bc930f942f260a94e5c8ec4d190f7f2ddac448ed3d52acadaf9fc1c81a5cbff2c171c52c18ba0804eeb03f699d70394e1c977c5
Backport of Core PR13126
https://github.com/bitcoin/bitcoin/pull/13126/