HelenOS sources

loc_exchange_begin  323 uspace/lib/c/generic/loc.c 		exch = loc_exchange_begin();
loc_exchange_begin  456 uspace/lib/c/generic/loc.c 		exch = loc_exchange_begin();
loc_exchange_begin  505 uspace/lib/c/generic/loc.c 		exch = loc_exchange_begin();
loc_exchange_begin  666 uspace/lib/c/generic/loc.c 		exch = loc_exchange_begin();
loc_exchange_begin  715 uspace/lib/c/generic/loc.c 		exch = loc_exchange_begin();
loc_exchange_begin   46 uspace/lib/c/include/loc.h extern async_exch_t *loc_exchange_begin(void);
loc_exchange_begin   46 uspace/lib/posix/include/libc/loc.h extern async_exch_t *loc_exchange_begin(void);