Description: btrfs: fix deadlock with concurrent chunk allocations involving system chunks References: Notes: carnil> Commit fixes eafa4fd0ad0607 ("btrfs: fix exhaustion of the carnil> system chunk array due to concurrent allocations") but the carnil> underlying issue might be present earlier. Bugs: upstream: released (5.14-rc2) [1cb3db1cf383a3c7dbda1aa0ce748b0958759947] 5.10-upstream-stable: 4.19-upstream-stable: 4.9-upstream-stable: sid: released (5.14.6-1) 5.10-bullseye-security: 4.19-buster-security: 4.9-stretch-security: