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Emap: Drop szind/slab splitting parameters.

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After the previous diff, these are constants.
This commit is contained in:
David Goldblatt 2020-03-16 11:31:38 -07:00 committed by David Goldblatt
parent 50289750b3
commit bb6a418523
3 changed files with 18 additions and 15 deletions
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6
include/jemalloc/internal/emap.h
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@ -110,11 +110,9 @@ struct emap_prepare_s {
* state appropriately.
*/
bool emap_split_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
edata_t *edata, size_t size_a, szind_t szind_a, bool slab_a, edata_t *trail,
size_t size_b, szind_t szind_b, bool slab_b);
edata_t *edata, size_t size_a, edata_t *trail, size_t size_b);
void emap_split_commit(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
edata_t *lead, size_t size_a, szind_t szind_a, bool slab_a, edata_t *trail,
size_t size_b, szind_t szind_b, bool slab_b);
edata_t *lead, size_t size_a, edata_t *trail, size_t size_b);
void emap_merge_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
edata_t *lead, edata_t *trail);
void emap_merge_commit(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,

20
src/emap.c
View File

@ -230,8 +230,7 @@ void emap_remap(tsdn_t *tsdn, emap_t *emap, edata_t *edata, szind_t szind,
bool
emap_split_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
edata_t *edata, size_t size_a, szind_t szind_a, bool slab_a, edata_t *trail,
size_t size_b, szind_t szind_b, bool slab_b) {
edata_t *edata, size_t size_a, edata_t *trail, size_t size_b) {
EMAP_DECLARE_RTREE_CTX;
/*
@ -240,7 +239,7 @@ emap_split_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
* facilitate a lookup.
*/
edata_t lead;
edata_init(&lead, 0U, edata_addr_get(edata), size_a, slab_a, szind_a, 0,
edata_init(&lead, 0U, edata_addr_get(edata), size_a, false, 0, 0,
extent_state_active, false, false, false, EXTENT_NOT_HEAD);
emap_rtree_leaf_elms_lookup(tsdn, emap, rtree_ctx, &lead, false, true,
@ -257,12 +256,19 @@ emap_split_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
void
emap_split_commit(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare,
edata_t *lead, size_t size_a, szind_t szind_a, bool slab_a, edata_t *trail,
size_t size_b, szind_t szind_b, bool slab_b) {
edata_t *lead, size_t size_a, edata_t *trail, size_t size_b) {
/*
* We should think about not writing to the lead leaf element. We can
* get into situations where a racing realloc-like call can disagree
* with a size lookup request. I think it's fine to declare that these
* situations are race bugs, but there's an argument to be made that for
* things like xallocx, a size lookup call should return either the old
* size or the new size, but not anything else.
*/
emap_rtree_write_acquired(tsdn, emap, prepare->lead_elm_a,
prepare->lead_elm_b, lead, szind_a, slab_a);
prepare->lead_elm_b, lead, SC_NSIZES, /* slab */ false);
emap_rtree_write_acquired(tsdn, emap, prepare->trail_elm_a,
prepare->trail_elm_b, trail, szind_b, slab_b);
prepare->trail_elm_b, trail, SC_NSIZES, /* slab */ false);
}
void

7
src/extent.c
View File

@ -1190,8 +1190,7 @@ extent_split_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
EXTENT_NOT_HEAD);
emap_prepare_t prepare;
bool err = emap_split_prepare(tsdn, shard->emap, &prepare, edata,
size_a, SC_NSIZES, /* slab */ false, trail, size_b, SC_NSIZES,
/* slab */ false);
size_a, trail, size_b);
if (err) {
goto label_error_b;
}
@ -1206,8 +1205,8 @@ extent_split_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
}
edata_size_set(edata, size_a);
emap_split_commit(tsdn, shard->emap, &prepare, edata, size_a, SC_NSIZES,
/* slab_a */ false, trail, size_b,SC_NSIZES, /* slab_b */ false);
emap_split_commit(tsdn, shard->emap, &prepare, edata, size_a, trail,
size_b);
emap_unlock_edata2(tsdn, shard->emap, edata, trail);