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authorSverker Eriksson <[email protected]>2016-10-12 16:14:51 +0200
committerSverker Eriksson <[email protected]>2016-10-12 16:14:51 +0200
commite22f99f0303bb5e70b128118bad320ee9368e4ba (patch)
treeaa190baa36654776bb4d3f63fa6a0118684e4f3a /erts/emulator
parent83801d03ae4e3e157862eb51179c4c154795f976 (diff)
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erts: Add strict size assert to fix alloc
and remove outdated min size adjustment. The is similar to lost commit 31bc414dc9639ccf94f9011ed32 except we now assume and assert strict size equality.
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/erl_alloc_util.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index 2995f2f822..dd8ca5fac1 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -1361,6 +1361,7 @@ fix_cpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size)
&& type <= ERTS_ALC_N_MAX_A_FIXED_SIZE);
fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE];
+ ASSERT(size == fix->type_size);
res = fix->list;
if (res) {
@@ -1372,8 +1373,6 @@ fix_cpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size)
fix_cpool_check_shrink(allctr, type, fix, NULL);
return res;
}
- if (size < 2*sizeof(UWord))
- size += sizeof(UWord);
if (size >= allctr->sbc_threshold) {
Block_t *blk;
blk = create_carrier(allctr, size, CFLG_SBC);
@@ -1493,6 +1492,7 @@ fix_nocpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size)
&& type <= ERTS_ALC_N_MAX_A_FIXED_SIZE);
fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE];
+ ASSERT(size == fix->type_size);
ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1);
fix->u.nocpool.used++;
@@ -1515,8 +1515,6 @@ fix_nocpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size)
ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0);
return res;
}
- if (size < 2*sizeof(UWord))
- size += sizeof(UWord);
if (fix->u.nocpool.limit < fix->u.nocpool.used)
fix->u.nocpool.limit = fix->u.nocpool.used;
if (fix->u.nocpool.max_used < fix->u.nocpool.used)