thread_sync.c: remove "volatile" qualifiers
I may store ->ec in rb_mutex_t instead of ->th to support green thread. For now, "volatile" is useless for thread-safety anyways and we're not dealing with *jmp or signals with mutex.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
thread_sync.c: remove "volatile" qualifiers
I may store ->ec in rb_mutex_t instead of ->th to support green
thread. For now, "volatile" is useless for thread-safety
anyways and we're not dealing with *jmp or signals with mutex.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e