[fuse-devel] what is FUSE_SYMVER(".symver fuse_loop_mt_proc,__fuse_loop_mt@"); in lib/fuse_mt.c

[curd c. <cur...@ya...>]

Hi:
I am studying fuse lib code and find out I am not familiar with FUSE_SYMBER() statement definedin lib/fuse.mt.c
Could someone please tell me what is FUSE_SYMBER() ?  
Where FUSE_SYMBER() gets defined ? in the FUSE kernel module ? 
How does each parameter ? especially __fuse_loop_mt@ ?
Who will process this statement ?Is fuse_loop_mt_proc() the first routine to run ?or who calls fuse_loop_mt_proc() ?
Thanks,
Curd