From 2ce895809ba59bfd2b62b913f80648793c615fc9 Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Thu, 8 Mar 2012 10:39:00 +0100 Subject: Remove newly introduced excessive barrier in erts_thr_progress_later() --- erts/emulator/beam/erl_thr_progress.h | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'erts/emulator/beam/erl_thr_progress.h') diff --git a/erts/emulator/beam/erl_thr_progress.h b/erts/emulator/beam/erl_thr_progress.h index 1bbc49993e..a71724b813 100644 --- a/erts/emulator/beam/erl_thr_progress.h +++ b/erts/emulator/beam/erl_thr_progress.h @@ -138,6 +138,7 @@ ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_acqb__(ERTS_THR_PRGR_ATOMIC *a ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_mb__(ERTS_THR_PRGR_ATOMIC *atmc); ERTS_GLB_INLINE int erts_thr_progress_is_managed_thread(void); +ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current_to_later__(ErtsThrPrgrVal val); ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_later_than(ErtsThrPrgrVal val); ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_later(void); ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current(void); @@ -218,9 +219,8 @@ erts_thr_progress_is_managed_thread(void) } ERTS_GLB_INLINE ErtsThrPrgrVal -erts_thr_progress_later_than(ErtsThrPrgrVal val) +erts_thr_progress_current_to_later__(ErtsThrPrgrVal val) { - ERTS_THR_MEMORY_BARRIER; if (val == (ERTS_THR_PRGR_VAL_WAITING-((ErtsThrPrgrVal)2))) return ((ErtsThrPrgrVal) 0); else if (val == (ERTS_THR_PRGR_VAL_WAITING-((ErtsThrPrgrVal)1))) @@ -229,11 +229,18 @@ erts_thr_progress_later_than(ErtsThrPrgrVal val) return val + ((ErtsThrPrgrVal) 2); } +ERTS_GLB_INLINE ErtsThrPrgrVal +erts_thr_progress_later_than(ErtsThrPrgrVal val) +{ + ERTS_THR_MEMORY_BARRIER; + return erts_thr_progress_current_to_later__(val); +} + ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_later(void) { ErtsThrPrgrVal val = erts_thr_prgr_read_mb__(&erts_thr_prgr__.current); - return erts_thr_progress_later_than(val); + return erts_thr_progress_current_to_later__(val); } ERTS_GLB_INLINE ErtsThrPrgrVal -- cgit v1.2.3