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Update jemalloc to version 3.4.1.

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This commit is contained in:
Jason Evans 2013-10-21 05:10:46 +00:00
parent 7e75d58610
commit 2b06b2013c
14 changed files with 183 additions and 110 deletions
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17
contrib/jemalloc/ChangeLog
View File

@ -6,6 +6,21 @@ found in the git revision history:
http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
git://canonware.com/jemalloc.git
* 3.4.1 (October 20, 2013)
Bug fixes:
- Fix a race in the "arenas.extend" mallctl that could cause memory corruption
of internal data structures and subsequent crashes.
- Fix Valgrind integration flaws that caused Valgrind warnings about reads of
uninitialized memory in:
+ arena chunk headers
+ internal zero-initialized data structures (relevant to tcache and prof
code)
- Preserve errno during the first allocation. A readlink(2) call during
initialization fails unless /etc/malloc.conf exists, so errno was typically
set during the first allocation prior to this fix.
- Fix compilation warnings reported by gcc 4.8.1.
* 3.4.0 (June 2, 2013)
This version is essentially a small bugfix release, but the addition of
@ -60,7 +75,7 @@ found in the git revision history:
Bug fixes:
- Fix "arenas.extend" mallctl to output the number of arenas.
- Fix chunk_recycyle() to unconditionally inform Valgrind that returned memory
- Fix chunk_recycle() to unconditionally inform Valgrind that returned memory
is undefined.
- Fix build break on FreeBSD related to alloca.h.

8
contrib/jemalloc/FREEBSD-diffs
View File

@ -45,7 +45,7 @@ index abd5e6f..1d7491a 100644
+ </refsect1>
</refentry>
diff --git a/include/jemalloc/internal/jemalloc_internal.h.in b/include/jemalloc/internal/jemalloc_internal.h.in
index e46ac54..527449d 100644
index 53c135c..c547339 100644
--- a/include/jemalloc/internal/jemalloc_internal.h.in
+++ b/include/jemalloc/internal/jemalloc_internal.h.in
@@ -1,5 +1,8 @@
@ -97,10 +97,10 @@ index de44e14..564d604 100644
bool malloc_mutex_init(malloc_mutex_t *mutex);
diff --git a/include/jemalloc/internal/private_namespace.h b/include/jemalloc/internal/private_namespace.h
index 65de316..366676b 100644
index cdb0b0e..2a98d1f 100644
--- a/include/jemalloc/internal/private_namespace.h
+++ b/include/jemalloc/internal/private_namespace.h
@@ -216,7 +216,6 @@
@@ -218,7 +218,6 @@
#define iralloc JEMALLOC_N(iralloc)
#define irallocx JEMALLOC_N(irallocx)
#define isalloc JEMALLOC_N(isalloc)
@ -244,7 +244,7 @@ index 0000000..e6c8407
+#endif
+
diff --git a/src/jemalloc.c b/src/jemalloc.c
index bc350ed..352c98e 100644
index ae56db6..1412a5e 100644
--- a/src/jemalloc.c
+++ b/src/jemalloc.c
@@ -8,6 +8,10 @@ malloc_tsd_data(, arenas, arena_t *, NULL)

2
contrib/jemalloc/FREEBSD-upgrade
View File

@ -60,7 +60,7 @@ do_extract() {
local rev=$1
# Clone.
rm -rf ${work}
git clone git://canonware.com/jemalloc.git ${work}
git clone https://github.com/jemalloc/jemalloc.git ${work}
(
cd ${work}
if [ "x${rev}" != "x" ] ; then

2
contrib/jemalloc/VERSION
View File

@ -1 +1 @@
3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775
3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0

8
contrib/jemalloc/doc/jemalloc.3
View File

@ -2,12 +2,12 @@
.\" Title: JEMALLOC
.\" Author: Jason Evans
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
.\" Date: 06/02/2013
.\" Date: 10/20/2013
.\" Manual: User Manual
.\" Source: jemalloc 3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775
.\" Source: jemalloc 3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0
.\" Language: English
.\"
.TH "JEMALLOC" "3" "06/02/2013" "jemalloc 3.4.0-0-g0ed518e5dab7" "User Manual"
.TH "JEMALLOC" "3" "10/20/2013" "jemalloc 3.4.1-0-g0135fb806e41" "User Manual"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
@ -31,7 +31,7 @@
jemalloc \- general purpose memory allocation functions
.SH "LIBRARY"
.PP
This manual describes jemalloc 3\&.4\&.0\-0\-g0ed518e5dab789ad2171bb38977a8927e2a26775\&. More information can be found at the
This manual describes jemalloc 3\&.4\&.1\-0\-g0135fb806e4137dc9cdf152541926a2bc95e33f0\&. More information can be found at the
\m[blue]\fBjemalloc website\fR\m[]\&\s-2\u[1]\d\s+2\&.
.PP
The following configuration options are enabled in libc\*(Aqs built\-in jemalloc:

66
contrib/jemalloc/include/jemalloc/internal/arena.h
View File

@ -441,6 +441,7 @@ void arena_postfork_child(arena_t *arena);
#ifndef JEMALLOC_ENABLE_INLINE
arena_chunk_map_t *arena_mapp_get(arena_chunk_t *chunk, size_t pageind);
size_t *arena_mapbitsp_get(arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbitsp_read(size_t *mapbitsp);
size_t arena_mapbits_get(arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_unallocated_size_get(arena_chunk_t *chunk,
size_t pageind);
@ -451,6 +452,7 @@ size_t arena_mapbits_dirty_get(arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_unzeroed_get(arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_large_get(arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_allocated_get(arena_chunk_t *chunk, size_t pageind);
void arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits);
void arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind,
size_t size, size_t flags);
void arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
@ -497,11 +499,18 @@ arena_mapbitsp_get(arena_chunk_t *chunk, size_t pageind)
return (&arena_mapp_get(chunk, pageind)->bits);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbitsp_read(size_t *mapbitsp)
{
return (*mapbitsp);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_get(arena_chunk_t *chunk, size_t pageind)
{
return (*arena_mapbitsp_get(chunk, pageind));
return (arena_mapbitsp_read(arena_mapbitsp_get(chunk, pageind)));
}
JEMALLOC_ALWAYS_INLINE size_t
@ -584,83 +593,90 @@ arena_mapbits_allocated_get(arena_chunk_t *chunk, size_t pageind)
return (mapbits & CHUNK_MAP_ALLOCATED);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits)
{
*mapbitsp = mapbits;
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind, size_t size,
size_t flags)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
mapbitsp = arena_mapbitsp_get(chunk, pageind);
assert((size & PAGE_MASK) == 0);
assert((flags & ~CHUNK_MAP_FLAGS_MASK) == 0);
assert((flags & (CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == flags);
*mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags;
arena_mapbitsp_write(mapbitsp, size | CHUNK_MAP_BININD_INVALID | flags);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
size_t size)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
mapbitsp = arena_mapbitsp_get(chunk, pageind);
assert((size & PAGE_MASK) == 0);
assert((*mapbitsp & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
*mapbitsp = size | (*mapbitsp & PAGE_MASK);
assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
arena_mapbitsp_write(mapbitsp, size | (mapbits & PAGE_MASK));
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind, size_t size,
size_t flags)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
size_t unzeroed;
mapbitsp = arena_mapbitsp_get(chunk, pageind);
assert((size & PAGE_MASK) == 0);
assert((flags & CHUNK_MAP_DIRTY) == flags);
unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
*mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags | unzeroed |
CHUNK_MAP_LARGE | CHUNK_MAP_ALLOCATED;
unzeroed = mapbits & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
arena_mapbitsp_write(mapbitsp, size | CHUNK_MAP_BININD_INVALID | flags
| unzeroed | CHUNK_MAP_LARGE | CHUNK_MAP_ALLOCATED);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind,
size_t binind)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
assert(binind <= BININD_INVALID);
mapbitsp = arena_mapbitsp_get(chunk, pageind);
assert(arena_mapbits_large_size_get(chunk, pageind) == PAGE);
*mapbitsp = (*mapbitsp & ~CHUNK_MAP_BININD_MASK) | (binind <<
CHUNK_MAP_BININD_SHIFT);
arena_mapbitsp_write(mapbitsp, (mapbits & ~CHUNK_MAP_BININD_MASK) |
(binind << CHUNK_MAP_BININD_SHIFT));
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind, size_t runind,
size_t binind, size_t flags)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
size_t unzeroed;
assert(binind < BININD_INVALID);
mapbitsp = arena_mapbitsp_get(chunk, pageind);
assert(pageind - runind >= map_bias);
assert((flags & CHUNK_MAP_DIRTY) == flags);
unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
*mapbitsp = (runind << LG_PAGE) | (binind << CHUNK_MAP_BININD_SHIFT) |
flags | unzeroed | CHUNK_MAP_ALLOCATED;
unzeroed = mapbits & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
arena_mapbitsp_write(mapbitsp, (runind << LG_PAGE) | (binind <<
CHUNK_MAP_BININD_SHIFT) | flags | unzeroed | CHUNK_MAP_ALLOCATED);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_unzeroed_set(arena_chunk_t *chunk, size_t pageind,
size_t unzeroed)
{
size_t *mapbitsp;
size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
mapbitsp = arena_mapbitsp_get(chunk, pageind);
*mapbitsp = (*mapbitsp & ~CHUNK_MAP_UNZEROED) | unzeroed;
arena_mapbitsp_write(mapbitsp, (mapbits & ~CHUNK_MAP_UNZEROED) |
unzeroed);
}
JEMALLOC_INLINE bool

12
contrib/jemalloc/include/jemalloc/internal/jemalloc_internal.h
View File

@ -232,9 +232,18 @@ static const bool config_ivsalloc =
# define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
#endif
/*
* JEMALLOC_ALWAYS_INLINE is used within header files for functions that are
* static inline functions if inlining is enabled, and single-definition
* library-private functions if inlining is disabled.
*
* JEMALLOC_ALWAYS_INLINE_C is for use in .c files, in which case the denoted
* functions are always static, regardless of whether inlining is enabled.
*/
#ifdef JEMALLOC_DEBUG
/* Disable inlining to make debugging easier. */
# define JEMALLOC_ALWAYS_INLINE
# define JEMALLOC_ALWAYS_INLINE_C static
# define JEMALLOC_INLINE
# define inline
#else
@ -242,8 +251,11 @@ static const bool config_ivsalloc =
# ifdef JEMALLOC_HAVE_ATTR
# define JEMALLOC_ALWAYS_INLINE \
static inline JEMALLOC_ATTR(unused) JEMALLOC_ATTR(always_inline)
# define JEMALLOC_ALWAYS_INLINE_C \
static inline JEMALLOC_ATTR(always_inline)
# else
# define JEMALLOC_ALWAYS_INLINE static inline
# define JEMALLOC_ALWAYS_INLINE_C static inline
# endif
# define JEMALLOC_INLINE static inline
# ifdef _MSC_VER

2
contrib/jemalloc/include/jemalloc/internal/private_namespace.h
View File

@ -33,6 +33,8 @@
#define arena_mapbits_unzeroed_get JEMALLOC_N(arena_mapbits_unzeroed_get)
#define arena_mapbits_unzeroed_set JEMALLOC_N(arena_mapbits_unzeroed_set)
#define arena_mapbitsp_get JEMALLOC_N(arena_mapbitsp_get)
#define arena_mapbitsp_read JEMALLOC_N(arena_mapbitsp_read)
#define arena_mapbitsp_write JEMALLOC_N(arena_mapbitsp_write)
#define arena_mapp_get JEMALLOC_N(arena_mapp_get)
#define arena_maxclass JEMALLOC_N(arena_maxclass)
#define arena_new JEMALLOC_N(arena_new)

4
contrib/jemalloc/include/jemalloc/internal/tcache.h
View File

@ -313,6 +313,7 @@ tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
} else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
if (config_fill && opt_junk) {
arena_alloc_junk_small(ret, &arena_bin_info[binind],
@ -321,7 +322,6 @@ tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
if (config_stats)
tbin->tstats.nrequests++;
@ -368,11 +368,11 @@ tcache_alloc_large(tcache_t *tcache, size_t size, bool zero)
else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
if (config_stats)
tbin->tstats.nrequests++;

6
contrib/jemalloc/include/jemalloc/jemalloc.h
View File

@ -7,12 +7,12 @@ extern "C" {
#include <limits.h>
#include <strings.h>
#define JEMALLOC_VERSION "3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775"
#define JEMALLOC_VERSION "3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0"
#define JEMALLOC_VERSION_MAJOR 3
#define JEMALLOC_VERSION_MINOR 4
#define JEMALLOC_VERSION_BUGFIX 0
#define JEMALLOC_VERSION_BUGFIX 1
#define JEMALLOC_VERSION_NREV 0
#define JEMALLOC_VERSION_GID "0ed518e5dab789ad2171bb38977a8927e2a26775"
#define JEMALLOC_VERSION_GID "0135fb806e4137dc9cdf152541926a2bc95e33f0"
#include "jemalloc_defs.h"
#include "jemalloc_FreeBSD.h"

42
contrib/jemalloc/src/arena.c
View File

@ -368,14 +368,21 @@ arena_run_zero(arena_chunk_t *chunk, size_t run_ind, size_t npages)
(npages << LG_PAGE));
}
static inline void
arena_run_page_mark_zeroed(arena_chunk_t *chunk, size_t run_ind)
{
VALGRIND_MAKE_MEM_DEFINED((void *)((uintptr_t)chunk + (run_ind <<
LG_PAGE)), PAGE);
}
static inline void
arena_run_page_validate_zeroed(arena_chunk_t *chunk, size_t run_ind)
{
size_t i;
UNUSED size_t *p = (size_t *)((uintptr_t)chunk + (run_ind << LG_PAGE));
VALGRIND_MAKE_MEM_DEFINED((void *)((uintptr_t)chunk + (run_ind <<
LG_PAGE)), PAGE);
arena_run_page_mark_zeroed(chunk, run_ind);
for (i = 0; i < PAGE / sizeof(size_t); i++)
assert(p[i] == 0);
}
@ -458,6 +465,9 @@ arena_run_split(arena_t *arena, arena_run_t *run, size_t size, bool large,
} else if (config_debug) {
arena_run_page_validate_zeroed(
chunk, run_ind+i);
} else {
arena_run_page_mark_zeroed(
chunk, run_ind+i);
}
}
} else {
@ -467,6 +477,9 @@ arena_run_split(arena_t *arena, arena_run_t *run, size_t size, bool large,
*/
arena_run_zero(chunk, run_ind, need_pages);
}
} else {
VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk +
(run_ind << LG_PAGE)), (need_pages << LG_PAGE));
}
/*
@ -508,9 +521,9 @@ arena_run_split(arena_t *arena, arena_run_t *run, size_t size, bool large,
arena_run_page_validate_zeroed(chunk,
run_ind+need_pages-1);
}
VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk +
(run_ind << LG_PAGE)), (need_pages << LG_PAGE));
}
VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk + (run_ind <<
LG_PAGE)), (need_pages << LG_PAGE));
}
static arena_chunk_t *
@ -569,17 +582,24 @@ arena_chunk_alloc(arena_t *arena)
* unless the chunk is not zeroed.
*/
if (zero == false) {
VALGRIND_MAKE_MEM_UNDEFINED(
(void *)arena_mapp_get(chunk, map_bias+1),
(size_t)((uintptr_t) arena_mapp_get(chunk,
chunk_npages-1) - (uintptr_t)arena_mapp_get(chunk,
map_bias+1)));
for (i = map_bias+1; i < chunk_npages-1; i++)
arena_mapbits_unzeroed_set(chunk, i, unzeroed);
} else if (config_debug) {
} else {
VALGRIND_MAKE_MEM_DEFINED(
(void *)arena_mapp_get(chunk, map_bias+1),
(void *)((uintptr_t)
arena_mapp_get(chunk, chunk_npages-1)
- (uintptr_t)arena_mapp_get(chunk, map_bias+1)));
(size_t)((uintptr_t) arena_mapp_get(chunk,
chunk_npages-1) - (uintptr_t)arena_mapp_get(chunk,
map_bias+1)));
if (config_debug) {
for (i = map_bias+1; i < chunk_npages-1; i++) {
assert(arena_mapbits_unzeroed_get(chunk, i) ==
unzeroed);
assert(arena_mapbits_unzeroed_get(chunk,
i) == unzeroed);
}
}
}
arena_mapbits_unallocated_set(chunk, chunk_npages-1,
@ -1458,6 +1478,7 @@ arena_malloc_small(arena_t *arena, size_t size, bool zero)
} else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
if (config_fill && opt_junk) {
arena_alloc_junk_small(ret, &arena_bin_info[binind],
@ -1466,7 +1487,6 @@ arena_malloc_small(arena_t *arena, size_t size, bool zero)
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
return (ret);
}

2
contrib/jemalloc/src/chunk.c
View File

@ -294,7 +294,7 @@ chunk_record(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, void *chunk,
if (xnode != NULL)
base_node_dealloc(xnode);
if (xprev != NULL)
base_node_dealloc(prev);
base_node_dealloc(xprev);
}
void

60
contrib/jemalloc/src/ctl.c
View File

@ -546,43 +546,30 @@ ctl_arena_refresh(arena_t *arena, unsigned i)
static bool
ctl_grow(void)
{
size_t astats_size;
ctl_arena_stats_t *astats;
arena_t **tarenas;
/* Extend arena stats and arenas arrays. */
astats_size = (ctl_stats.narenas + 2) * sizeof(ctl_arena_stats_t);
if (ctl_stats.narenas == narenas_auto) {
/* ctl_stats.arenas and arenas came from base_alloc(). */
astats = (ctl_arena_stats_t *)imalloc(astats_size);
/* Allocate extended arena stats and arenas arrays. */
astats = (ctl_arena_stats_t *)imalloc((ctl_stats.narenas + 2) *
sizeof(ctl_arena_stats_t));
if (astats == NULL)
return (true);
memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) *
sizeof(ctl_arena_stats_t));
tarenas = (arena_t **)imalloc((ctl_stats.narenas + 1) *
sizeof(arena_t *));
if (tarenas == NULL) {
idalloc(astats);
return (true);
}
memcpy(tarenas, arenas, ctl_stats.narenas * sizeof(arena_t *));
} else {
astats = (ctl_arena_stats_t *)iralloc(ctl_stats.arenas,
astats_size, 0, 0, false, false);
if (astats == NULL)
return (true);
tarenas = (arena_t **)iralloc(arenas, (ctl_stats.narenas + 1) *
sizeof(arena_t *), 0, 0, false, false);
if (tarenas == NULL)
/* Initialize the new astats element. */
memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) *
sizeof(ctl_arena_stats_t));
memset(&astats[ctl_stats.narenas + 1], 0, sizeof(ctl_arena_stats_t));
if (ctl_arena_init(&astats[ctl_stats.narenas + 1])) {
idalloc(tarenas);
idalloc(astats);
return (true);
}
/* Initialize the new astats and arenas elements. */
memset(&astats[ctl_stats.narenas + 1], 0, sizeof(ctl_arena_stats_t));
if (ctl_arena_init(&astats[ctl_stats.narenas + 1]))
return (true);
tarenas[ctl_stats.narenas] = NULL;
/* Swap merged stats to their new location. */
{
ctl_arena_stats_t tstats;
@ -593,13 +580,34 @@ ctl_grow(void)
memcpy(&astats[ctl_stats.narenas + 1], &tstats,
sizeof(ctl_arena_stats_t));
}
ctl_stats.arenas = astats;
ctl_stats.narenas++;
/* Initialize the new arenas element. */
tarenas[ctl_stats.narenas] = NULL;
{
arena_t **arenas_old = arenas;
/*
* Swap extended arenas array into place. Although ctl_mtx
* protects this function from other threads extending the
* array, it does not protect from other threads mutating it
* (i.e. initializing arenas and setting array elements to
* point to them). Therefore, array copying must happen under
* the protection of arenas_lock.
*/
malloc_mutex_lock(&arenas_lock);
arenas = tarenas;
memcpy(arenas, arenas_old, ctl_stats.narenas *
sizeof(arena_t *));
narenas_total++;
arenas_extend(narenas_total - 1);
malloc_mutex_unlock(&arenas_lock);
/*
* Deallocate arenas_old only if it came from imalloc() (not
* base_alloc()).
*/
if (ctl_stats.narenas != narenas_auto)
idalloc(arenas_old);
}
ctl_stats.arenas = astats;
ctl_stats.narenas++;
return (false);
}
@ -1109,7 +1117,7 @@ epoch_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
void *newp, size_t newlen)
{
int ret;
uint64_t newval;
UNUSED uint64_t newval;
malloc_mutex_lock(&ctl_mtx);
WRITE(newval, uint64_t);

28
contrib/jemalloc/src/jemalloc.c
View File

@ -286,7 +286,7 @@ arenas_cleanup(void *arg)
malloc_mutex_unlock(&arenas_lock);
}
static JEMALLOC_ATTR(always_inline) void
JEMALLOC_ALWAYS_INLINE_C void
malloc_thread_init(void)
{
@ -303,7 +303,7 @@ malloc_thread_init(void)
quarantine_alloc_hook();
}
static JEMALLOC_ATTR(always_inline) bool
JEMALLOC_ALWAYS_INLINE_C bool
malloc_init(void)
{
@ -440,8 +440,9 @@ malloc_conf_init(void)
}
break;
case 1: {
int linklen = 0;
#ifndef _WIN32
int linklen;
int saved_errno = errno;
const char *linkname =
# ifdef JEMALLOC_PREFIX
"/etc/"JEMALLOC_PREFIX"malloc.conf"
@ -450,21 +451,20 @@ malloc_conf_init(void)
# endif
;
if ((linklen = readlink(linkname, buf,
sizeof(buf) - 1)) != -1) {
/*
* Use the contents of the "/etc/malloc.conf"
* Try to use the contents of the "/etc/malloc.conf"
* symbolic link's name.
*/
linklen = readlink(linkname, buf, sizeof(buf) - 1);
if (linklen == -1) {
/* No configuration specified. */
linklen = 0;
/* restore errno */
set_errno(saved_errno);
}
#endif
buf[linklen] = '\0';
opts = buf;
} else
#endif
{
/* No configuration specified. */
buf[0] = '\0';
opts = buf;
}
break;
} case 2: {
const char *envname =
@ -1407,7 +1407,7 @@ je_mallctlbymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
*/
#ifdef JEMALLOC_EXPERIMENTAL
static JEMALLOC_ATTR(always_inline) void *
JEMALLOC_ALWAYS_INLINE_C void *
iallocm(size_t usize, size_t alignment, bool zero, bool try_tcache,
arena_t *arena)
{