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pma: fix freelist node size calculation in _mlist_insert

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This commit is contained in:
barter-simsum 2023-12-15 06:36:30 -05:00
parent 031e583c3c
commit 66aaa255f7
1 changed files with 5 additions and 6 deletions
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11
rust/ares_pma/c-src/btree.c
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@ -787,7 +787,7 @@ _mlist_insert(BT_state *state, void *lo, void *hi)
/* special case: freed chunk precedes but is not contiguous with head */
if (hi < head->va) {
BT_mlistnode *new = calloc(1, sizeof *new);
new->sz = (hib - lob);
new->sz = B2PAGES(hib - lob);
new->va = lob;
new->next = head;
state->mlist = new;
@ -802,19 +802,19 @@ _mlist_insert(BT_state *state, void *lo, void *hi)
/* freed chunk immediately precedes head */
if (hib == vob) {
head->va = lo;
head->sz += (hib - lob);
head->sz += B2PAGES(hib - lob);
return;
}
/* freed chunk immediately follows termination of head */
if (vob + siz == lo) {
head->sz += (hib - lob);
head->sz += B2PAGES(hib - lob);
return;
}
/* freed chunk between head and next but not contiguous */
if (lob > vob + siz
&& hib < nob) {
BT_mlistnode *new = calloc(1, sizeof *new);
new->sz = (hib - lob);
new->sz = B2PAGES(hib - lob);
new->va = lob;
new->next = head->next;
head->next = new;
@ -824,7 +824,7 @@ _mlist_insert(BT_state *state, void *lo, void *hi)
}
/* freelist completely searched. Chunk must be at tail and not contiguous */
BT_mlistnode *new = calloc(1, sizeof *new);
new->sz = (hib - lob);
new->sz = B2PAGES(hib - lob);
new->va = lob;
new->next = head->next;
head->next = new;
@ -1475,7 +1475,6 @@ _mlist_new(BT_state *state)
head->next = 0;
head->sz = len;
head->va = off2addr(lo);
state->mlist = head;
return BT_SUCC;