not multi-thread safe

[GoogleCodeExporter]

it is currently not possible let FUSE to run in multithread mode because 
standard lua doesn't protect the VM for such situation(lua_lock/lua_unlock 
in the source is a "do nothing").

At the moment, a vm_lock is implemented in the binding which effectively 
lock and wait till the running lua function(from other threads) returns. 
So even turning on FUSE muti-thread would have no effect, performance wise.

Original issue reported on code.google.com by [email protected] on 15 Jul 2007 at 4:24