CONFIG_PER_VMA_LOCK (not configurable)
configname: CONFIG_PER_VMA_LOCK
Linux Kernel Configuration
└─>Memory Management options
└─>PER_VMA_LOCK
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
Allow per-vma locking during page fault handling.
This feature allows locking each virtual memory area separately when
handling page faults instead of taking mmap_lock.
This feature allows locking each virtual memory area separately when
handling page faults instead of taking mmap_lock.