Also note that sumblks in struct mallinfo is always 0.
No functional change.
2016-02-19 Florian Weimer <fweimer@redhat.com>
+ * malloc/malloc.c (__libc_mallinfo): Update comment.
+ (struct malloc_par): Remove max_total_mem member, it was always 0.
+ (int_mallinfo): Store 0 into usmblks (no functional change).
+ * malloc/hooks.c (struct malloc_state): Document that
+ max_total_mem is always 0.
+ * malloc/malloc.h (struct mallinfo): Dcoument that usmblks is
+ always 0.
+ * manual/memory.texi (Statistics of Malloc): Likewise.
+
+2016-02-19 Florian Weimer <fweimer@redhat.com>
+
* malloc/malloc.c (sysmalloc): Do not update arena_max.
* malloc/arena.c (arena_max): Remove.
(heap_trim, _int_new_arena): Do not update arena_max.
unsigned long mmap_threshold;
int check_action;
unsigned long max_sbrked_mem;
- unsigned long max_total_mem;
+ unsigned long max_total_mem; /* Always 0, for backwards compatibility. */
unsigned int n_mmaps;
unsigned int max_n_mmaps;
unsigned long mmapped_mem;
have been freed but not use resused or consolidated)
hblks: current number of mmapped regions
hblkhd: total bytes held in mmapped regions
- usmblks: the maximum total allocated space. This will be greater
- than current total if trimming has occurred.
+ usmblks: always 0
fsmblks: total bytes held in fastbin blocks
uordblks: current total allocated space (normal or mmapped)
fordblks: total free space
/* Statistics */
INTERNAL_SIZE_T mmapped_mem;
- /*INTERNAL_SIZE_T sbrked_mem;*/
- /*INTERNAL_SIZE_T max_sbrked_mem;*/
INTERNAL_SIZE_T max_mmapped_mem;
- INTERNAL_SIZE_T max_total_mem; /* only kept for NO_THREADS */
/* First address handed out by MORECORE/sbrk. */
char *sbrk_base;
{
m->hblks = mp_.n_mmaps;
m->hblkhd = mp_.mmapped_mem;
- m->usmblks = mp_.max_total_mem;
+ m->usmblks = 0;
m->keepcost = chunksize (av->top);
}
}
int smblks; /* number of fastbin blocks */
int hblks; /* number of mmapped regions */
int hblkhd; /* space in mmapped regions */
- int usmblks; /* maximum total allocated space */
+ int usmblks; /* always 0, preserved for backwards compatibility */
int fsmblks; /* space available in freed fastbin blocks */
int uordblks; /* total allocated space */
int fordblks; /* total free space */
This is the total size of memory allocated with @code{mmap}, in bytes.
@item int usmblks
-This field is unused.
+This field is unused and always 0.
@item int fsmblks
This field is unused.