Description: tracing: Ensure visibility when inserting an element into tracing_map
References:
Notes:
 carnil> Introduced in c193707dde77 ("tracing: Remove code which merges duplicates").
 carnil> Vulnerable versions: 4.17-rc1.
Bugs:
upstream: released (6.8-rc2) [2b44760609e9eaafc9d234a6883d042fc21132a7]
6.7-upstream-stable: released (6.7.3) [bf4aeff7da85c3becd39fb73bac94122331c30fb]
6.6-upstream-stable: released (6.6.15) [a1eebe76e187dbe11ca299f8dbb6e45d5b1889e7]
6.1-upstream-stable: released (6.1.76) [f4f7e696db0274ff560482cc52eddbf0551d4b7a]
5.10-upstream-stable: released (5.10.210) [ef70dfa0b1e5084f32635156c9a5c795352ad860]
4.19-upstream-stable: released (4.19.307) [5022b331c041e8c54b9a6a3251579bd1e8c0fc0b]
sid: released (6.6.15-1)
6.1-bookworm-security: released (6.1.76-1)
5.10-bullseye-security: needed
4.19-buster-security: needed