Description: btrfs: fix memory ordering between normal and ordered work functions
References:
Notes:
 carnil> Introduced in 08a9ff326418 ("btrfs: Added btrfs_workqueue_struct implemented
 carnil> ordered execution based on kernel workqueue"). Vulnerable versions: 3.15-rc1.
Bugs:
upstream: released (5.16-rc2) [45da9c1767ac31857df572f0a909fbe88fd5a7e9]
6.8-upstream-stable: N/A "Fixed before branching point"
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: released (5.10.82) [6adbc07ebcaf8bead08b21687d49e0fc94400987]
4.19-upstream-stable: released (4.19.218) [ed058d735a70f4b063323f1a7bb33cda0f987513]
sid: released (5.15.5-1)
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: released (5.10.84-1)
4.19-buster-security: released (4.19.232-1)