diff options
Diffstat (limited to 'malloc/malloc.c')
| -rw-r--r-- | malloc/malloc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index 91551ae1f2..d904db894e 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -2927,7 +2927,8 @@ typedef struct tcache_entry { /* There is one of these for each thread, which contains the per-thread cache (hence "tcache_perthread_struct"). Keeping overall size low is mildly important. Note that COUNTS and ENTRIES - are redundant, this is for performance reasons. */ + are redundant (we could have just counted the linked list each + time), this is for performance reasons. */ typedef struct tcache_perthread_struct { char counts[TCACHE_MAX_BINS]; tcache_entry *entries[TCACHE_MAX_BINS]; @@ -2955,6 +2956,7 @@ tcache_get (size_t tc_idx) { tcache_entry *e = tcache->entries[tc_idx]; assert (tc_idx < TCACHE_MAX_BINS); + assert (tcache->entries[tc_idx] > 0); tcache->entries[tc_idx] = e->next; --(tcache->counts[tc_idx]); return (void *) e; |