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Rearrange slab data and constants

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The constants logically belong in the sc module. The slab data bitmap isn't
really scoped to an arena; move it to its own module.
This commit is contained in:
David T. Goldblatt 2019-09-20 16:36:42 -07:00 committed by David Goldblatt
parent d1be488cd8
commit e7cf84a8dd
9 changed files with 29 additions and 29 deletions
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11
include/jemalloc/internal/arena_structs_a.h
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@ -1,11 +0,0 @@
#ifndef JEMALLOC_INTERNAL_ARENA_STRUCTS_A_H
#define JEMALLOC_INTERNAL_ARENA_STRUCTS_A_H
#include "jemalloc/internal/bitmap.h"
struct arena_slab_data_s {
/* Per region allocated/deallocated bitmap. */
bitmap_t bitmap[BITMAP_GROUPS_MAX];
};
#endif /* JEMALLOC_INTERNAL_ARENA_STRUCTS_A_H */

5
include/jemalloc/internal/arena_types.h
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@ -3,17 +3,12 @@
#include "jemalloc/internal/sc.h"
/* Maximum number of regions in one slab. */
#define LG_SLAB_MAXREGS (LG_PAGE - SC_LG_TINY_MIN)
#define SLAB_MAXREGS (1U << LG_SLAB_MAXREGS)
/* Default decay times in milliseconds. */
#define DIRTY_DECAY_MS_DEFAULT ZD(10 * 1000)
#define MUZZY_DECAY_MS_DEFAULT (0)
/* Number of event ticks between time checks. */
#define DECAY_NTICKS_PER_UPDATE 1000
typedef struct arena_slab_data_s arena_slab_data_t;
typedef struct arena_decay_s arena_decay_t;
typedef struct arena_s arena_t;
typedef struct arena_tdata_s arena_tdata_t;

5
include/jemalloc/internal/bitmap.h
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@ -1,7 +1,6 @@
#ifndef JEMALLOC_INTERNAL_BITMAP_H
#define JEMALLOC_INTERNAL_BITMAP_H
#include "jemalloc/internal/arena_types.h"
#include "jemalloc/internal/bit_util.h"
#include "jemalloc/internal/sc.h"
@ -9,9 +8,9 @@ typedef unsigned long bitmap_t;
#define LG_SIZEOF_BITMAP LG_SIZEOF_LONG
/* Maximum bitmap bit count is 2^LG_BITMAP_MAXBITS. */
#if LG_SLAB_MAXREGS > LG_CEIL(SC_NSIZES)
#if SC_LG_SLAB_MAXREGS > LG_CEIL(SC_NSIZES)
/* Maximum bitmap bit count is determined by maximum regions per slab. */
# define LG_BITMAP_MAXBITS LG_SLAB_MAXREGS
# define LG_BITMAP_MAXBITS SC_LG_SLAB_MAXREGS
#else
/* Maximum bitmap bit count is determined by number of extent size classes. */
# define LG_BITMAP_MAXBITS LG_CEIL(SC_NSIZES)

4
include/jemalloc/internal/extent_inlines.h
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@ -168,13 +168,13 @@ extent_past_get(const extent_t *extent) {
extent_size_get(extent));
}
static inline arena_slab_data_t *
static inline slab_data_t *
extent_slab_data_get(extent_t *extent) {
assert(extent_slab_get(extent));
return &extent->e_slab_data;
}
static inline const arena_slab_data_t *
static inline const slab_data_t *
extent_slab_data_get_const(const extent_t *extent) {
assert(extent_slab_get(extent));
return &extent->e_slab_data;

5
include/jemalloc/internal/extent_structs.h
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@ -8,6 +8,7 @@
#include "jemalloc/internal/ql.h"
#include "jemalloc/internal/ph.h"
#include "jemalloc/internal/sc.h"
#include "jemalloc/internal/slab_data.h"
typedef enum {
extent_state_active = 0,
@ -120,7 +121,7 @@ struct extent_s {
#define EXTENT_BITS_SZIND_SHIFT (EXTENT_BITS_STATE_WIDTH + EXTENT_BITS_STATE_SHIFT)
#define EXTENT_BITS_SZIND_MASK MASK(EXTENT_BITS_SZIND_WIDTH, EXTENT_BITS_SZIND_SHIFT)
#define EXTENT_BITS_NFREE_WIDTH (LG_SLAB_MAXREGS + 1)
#define EXTENT_BITS_NFREE_WIDTH (SC_LG_SLAB_MAXREGS + 1)
#define EXTENT_BITS_NFREE_SHIFT (EXTENT_BITS_SZIND_WIDTH + EXTENT_BITS_SZIND_SHIFT)
#define EXTENT_BITS_NFREE_MASK MASK(EXTENT_BITS_NFREE_WIDTH, EXTENT_BITS_NFREE_SHIFT)
@ -170,7 +171,7 @@ struct extent_s {
union {
/* Small region slab metadata. */
arena_slab_data_t e_slab_data;
slab_data_t e_slab_data;
/* Profiling data, used for large objects. */
struct {

1
include/jemalloc/internal/jemalloc_internal_includes.h
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@ -50,7 +50,6 @@
/* STRUCTS */
/******************************************************************************/
#include "jemalloc/internal/arena_structs_a.h"
#include "jemalloc/internal/extent_structs.h"
#include "jemalloc/internal/base_structs.h"
#include "jemalloc/internal/prof_structs.h"

5
include/jemalloc/internal/sc.h
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@ -264,6 +264,11 @@
/* The largest size class supported. */
#define SC_LARGE_MAXCLASS (SC_MAX_BASE + (SC_NGROUP - 1) * SC_MAX_DELTA)
/* Maximum number of regions in one slab. */
#define SC_LG_SLAB_MAXREGS (LG_PAGE - SC_LG_TINY_MIN)
#define SC_SLAB_MAXREGS (1U << LG_SLAB_MAXREGS)
typedef struct sc_s sc_t;
struct sc_s {
/* Size class index, or -1 if not a valid size class. */

12
include/jemalloc/internal/slab_data.h Normal file
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@ -0,0 +1,12 @@
#ifndef JEMALLOC_INTERNAL_SLAB_DATA_H
#define JEMALLOC_INTERNAL_SLAB_DATA_H
#include "jemalloc/internal/bitmap.h"
typedef struct slab_data_s slab_data_t;
struct slab_data_s {
/* Per region allocated/deallocated bitmap. */
bitmap_t bitmap[BITMAP_GROUPS_MAX];
};
#endif /* JEMALLOC_INTERNAL_SLAB_DATA_H */

10
src/arena.c
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@ -270,7 +270,7 @@ arena_extents_dirty_dalloc(tsdn_t *tsdn, arena_t *arena,
static void *
arena_slab_reg_alloc(extent_t *slab, const bin_info_t *bin_info) {
void *ret;
arena_slab_data_t *slab_data = extent_slab_data_get(slab);
slab_data_t *slab_data = extent_slab_data_get(slab);
size_t regind;
assert(extent_nfree_get(slab) > 0);
@ -286,7 +286,7 @@ arena_slab_reg_alloc(extent_t *slab, const bin_info_t *bin_info) {
static void
arena_slab_reg_alloc_batch(extent_t *slab, const bin_info_t *bin_info,
unsigned cnt, void** ptrs) {
arena_slab_data_t *slab_data = extent_slab_data_get(slab);
slab_data_t *slab_data = extent_slab_data_get(slab);
assert(extent_nfree_get(slab) >= cnt);
assert(!bitmap_full(slab_data->bitmap, &bin_info->bitmap_info));
@ -356,7 +356,7 @@ arena_slab_regind(extent_t *slab, szind_t binind, const void *ptr) {
}
static void
arena_slab_reg_dalloc(extent_t *slab, arena_slab_data_t *slab_data, void *ptr) {
arena_slab_reg_dalloc(extent_t *slab, slab_data_t *slab_data, void *ptr) {
szind_t binind = extent_szind_get(slab);
const bin_info_t *bin_info = &bin_infos[binind];
size_t regind = arena_slab_regind(slab, binind, ptr);
@ -1253,7 +1253,7 @@ arena_slab_alloc(tsdn_t *tsdn, arena_t *arena, szind_t binind, unsigned binshard
assert(extent_slab_get(slab));
/* Initialize slab internals. */
arena_slab_data_t *slab_data = extent_slab_data_get(slab);
slab_data_t *slab_data = extent_slab_data_get(slab);
extent_nfree_binshard_set(slab, bin_info->nregs, binshard);
bitmap_init(slab_data->bitmap, &bin_info->bitmap_info, false);
@ -1686,7 +1686,7 @@ arena_bin_lower_slab(tsdn_t *tsdn, arena_t *arena, extent_t *slab,
static void
arena_dalloc_bin_locked_impl(tsdn_t *tsdn, arena_t *arena, bin_t *bin,
szind_t binind, extent_t *slab, void *ptr, bool junked) {
arena_slab_data_t *slab_data = extent_slab_data_get(slab);
slab_data_t *slab_data = extent_slab_data_get(slab);
const bin_info_t *bin_info = &bin_infos[binind];
if (!junked && config_fill && unlikely(opt_junk_free)) {