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Emap: Remove direct access to emap internals.

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In the process, we do a few local cleanups and optimizations.  In particular,
the size safety check on tcache flush no longer does a redundant load.
This commit is contained in:
David Goldblatt
2020-02-06 13:16:07 -08:00
committed by David Goldblatt
parent 06e42090f7
commit ac50c1e44b
7 changed files with 144 additions and 132 deletions
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19
test/unit/arena_reset.c
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@@ -60,28 +60,25 @@ get_large_size(size_t ind) {
/* Like ivsalloc(), but safe to call on discarded allocations. */
static size_t
vsalloc(tsdn_t *tsdn, const void *ptr) {
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
edata_t *edata;
szind_t szind;
if (rtree_edata_szind_read(tsdn, &emap_global.rtree, rtree_ctx,
(uintptr_t)ptr, false, &edata, &szind)) {
emap_full_alloc_ctx_t full_alloc_ctx;
bool missing = emap_full_alloc_info_try_lookup(tsdn, &emap_global,
ptr, &full_alloc_ctx);
if (missing) {
return 0;
}
if (edata == NULL) {
if (full_alloc_ctx.edata == NULL) {
return 0;
}
if (edata_state_get(edata) != extent_state_active) {
if (edata_state_get(full_alloc_ctx.edata) != extent_state_active) {
return 0;
}
if (szind == SC_NSIZES) {
if (full_alloc_ctx.szind == SC_NSIZES) {
return 0;
}
return sz_index2size(szind);
return sz_index2size(full_alloc_ctx.szind);
}
static unsigned