From 382adc9e5d7c7dbd4e1f12adc483bc6eb7ed6c3d Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Fri, 8 Jul 2016 15:37:05 +0200 Subject: erts: Optimize db_finalize_dbterm_hash Always free term after WUNLOCK_HASH --- erts/emulator/beam/erl_db_hash.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index 74979f984a..6b23be1adf 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -2910,6 +2910,7 @@ db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle) HashDbTerm **bp = (HashDbTerm **) handle->bp; HashDbTerm *b = *bp; erts_smp_rwmtx_t* lck = (erts_smp_rwmtx_t*) handle->lck; + HashDbTerm* free_me = NULL; ERTS_SMP_LC_ASSERT(IS_HASH_WLOCKED(tb, lck)); /* locked by db_lookup_dbterm_hash */ @@ -2921,7 +2922,7 @@ db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle) b->hvalue = INVALID_HASH; } else { *bp = b->next; - free_term(tb, b); + free_me = b; } WUNLOCK_HASH(lck); @@ -2930,12 +2931,15 @@ db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle) } else if (handle->flags & DB_MUST_RESIZE) { db_finalize_resize(handle, offsetof(HashDbTerm,dbterm)); WUNLOCK_HASH(lck); - - free_term(tb, b); + free_me = b; } else { WUNLOCK_HASH(lck); } + + if (free_me) + free_term(tb, free_me); + #ifdef DEBUG handle->dbterm = 0; #endif -- cgit v1.2.3