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malloc: Remove max_total_mem member form struct malloc_par

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Also note that sumblks in struct mallinfo is always 0.
No functional change.
This commit is contained in:
Florian Weimer 2016-02-19 17:07:04 +01:00
parent 00d4e2ea35
commit ca135f824b
5 changed files with 16 additions and 9 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
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.

2
malloc/hooks.c
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@ -480,7 +480,7 @@ struct malloc_save_state
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;

8
malloc/malloc.c
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@ -649,8 +649,7 @@ libc_hidden_proto (__libc_mallopt)
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
@ -1743,10 +1742,7 @@ struct malloc_par
/* 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;
@ -4665,7 +4661,7 @@ int_mallinfo (mstate av, struct mallinfo *m)
{
m->hblks = mp_.n_mmaps;
m->hblkhd = mp_.mmapped_mem;
m->usmblks = mp_.max_total_mem;
m->usmblks = 0;
m->keepcost = chunksize (av->top);
}
}

2
malloc/malloc.h
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@ -83,7 +83,7 @@ struct mallinfo
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 */

2
manual/memory.texi
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@ -1520,7 +1520,7 @@ This is the total number of chunks allocated with @code{mmap}.
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.