unify lock and owner fields of mutex structure
authorRich Felker <dalias@aerifal.cx>
Thu, 17 Mar 2011 16:21:32 +0000 (12:21 -0400)
committerRich Felker <dalias@aerifal.cx>
Thu, 17 Mar 2011 16:21:32 +0000 (12:21 -0400)
commitb1c43161c2b37e35eae60fa61621a24a5d820d83
treeb6c532f959850f42ad219d87b721a587973c6654
parente914f8b7ec79f622fa3b017af434642f61d45ce8
unify lock and owner fields of mutex structure

this change is necessary to free up one slot in the mutex structure so
that we can use doubly-linked lists in the implementation of robust
mutexes.
src/internal/pthread_impl.h
src/thread/pthread_mutex_lock.c
src/thread/pthread_mutex_trylock.c
src/thread/pthread_mutex_unlock.c