diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/arena.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/arena.c b/src/arena.c index d9882a4..0b98ec5 100644 --- a/src/arena.c +++ b/src/arena.c @@ -2258,6 +2258,7 @@ void arena_prof_promote(tsdn_t *tsdn, extent_t *extent, const void *ptr, size_t usize) { + arena_t *arena = extent_arena_get(extent); cassert(config_prof); assert(ptr != NULL); @@ -2266,6 +2267,19 @@ arena_prof_promote(tsdn_t *tsdn, extent_t *extent, const void *ptr, extent_usize_set(extent, usize); + /* + * Cancel out as much of the excessive prof_accumbytes increase as + * possible without underflowing. Interval-triggered dumps occur + * slightly more often than intended as a result of incomplete + * canceling. + */ + malloc_mutex_lock(tsdn, &arena->lock); + if (arena->prof_accumbytes >= LARGE_MINCLASS - usize) + arena->prof_accumbytes -= LARGE_MINCLASS - usize; + else + arena->prof_accumbytes = 0; + malloc_mutex_unlock(tsdn, &arena->lock); + assert(isalloc(tsdn, extent, ptr) == usize); } |