CONFIG_VIDEOBUF_VMALLOC (not configurable)

modulename: videobuf-vmalloc.ko

configname: CONFIG_VIDEOBUF_VMALLOC

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Video4Linux options
└─>VIDEOBUF_VMALLOC
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
source code:
drivers/media/v4l2-core/videobuf-vmalloc.c