default or selected kernelversion does not have config value CONFIG_BCACHEFS_LOCK_TIME_STATS.
Result is shown for kernelversion 6.9.9
bcachefs lock time statistics
configname: CONFIG_BCACHEFS_LOCK_TIME_STATS
Linux Kernel Configuration
└─>File systems
└─>bcachefs lock time statistics
In linux kernel since version 4.14.330 (release Date: 2023-11-20)
Expose statistics for how long we held a lock in debugfs