lihao/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-23 21:23:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Emap: Move over metadata splitting logic.

Browse Source
This commit is contained in:
David Goldblatt
2020-02-03 13:27:21 -08:00
committed by David Goldblatt
parent 44f5f53605
commit 7c7b702064
3 changed files with 79 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
src/extent.c
View File

@@ -1276,53 +1276,27 @@ extent_split_impl(tsdn_t *tsdn, edata_cache_t *edata_cache, ehooks_t *ehooks,
goto label_error_a;
}
edata_init(trail, ehooks_ind_get(ehooks),
(void *)((uintptr_t)edata_base_get(edata) + size_a), size_b,
slab_b, szind_b, edata_sn_get(edata), edata_state_get(edata),
edata_zeroed_get(edata), edata_committed_get(edata),
edata_dumpable_get(edata), EXTENT_NOT_HEAD);
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
rtree_leaf_elm_t *lead_elm_a, *lead_elm_b;
{
edata_t lead;
edata_init(&lead, ehooks_ind_get(ehooks),
edata_addr_get(edata), size_a,
slab_a, szind_a, edata_sn_get(edata),
edata_state_get(edata), edata_zeroed_get(edata),
edata_committed_get(edata), edata_dumpable_get(edata),
EXTENT_NOT_HEAD);
emap_rtree_leaf_elms_lookup(tsdn, &emap_global, rtree_ctx,
&lead, false, true, &lead_elm_a, &lead_elm_b);
}
rtree_leaf_elm_t *trail_elm_a, *trail_elm_b;
emap_rtree_leaf_elms_lookup(tsdn, &emap_global, rtree_ctx, trail, false,
true, &trail_elm_a, &trail_elm_b);
if (lead_elm_a == NULL || lead_elm_b == NULL || trail_elm_a == NULL
|| trail_elm_b == NULL) {
emap_split_prepare_t split_prepare;
bool err = emap_split_prepare(tsdn, &emap_global, rtree_ctx,
&split_prepare, edata, size_a, szind_a, slab_a, trail, size_b,
szind_b, slab_b, ehooks_ind_get(ehooks));
if (err) {
goto label_error_b;
}
emap_lock_edata2(tsdn, &emap_global, edata, trail);
bool err = ehooks_split(tsdn, ehooks, edata_base_get(edata),
size_a + size_b, size_a, size_b, edata_committed_get(edata));
err = ehooks_split(tsdn, ehooks, edata_base_get(edata), size_a + size_b,
size_a, size_b, edata_committed_get(edata));
if (err) {
goto label_error_c;
}
edata_size_set(edata, size_a);
edata_szind_set(edata, szind_a);
emap_rtree_write_acquired(tsdn, &emap_global, lead_elm_a, lead_elm_b,
edata, szind_a, slab_a);
emap_rtree_write_acquired(tsdn, &emap_global, trail_elm_a, trail_elm_b,
trail, szind_b, slab_b);
emap_split_commit(tsdn, &emap_global, &split_prepare, edata, size_a,
szind_a, slab_a, trail, size_b, szind_b, slab_b);
emap_unlock_edata2(tsdn, &emap_global, edata, trail);