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HPA: Pull out a hooks type.

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For now, this is a no-op change.  In a subsequent commit, it will be useful for
testing.
This commit is contained in:
David Goldblatt
2021-06-14 14:18:08 -07:00
committed by David Goldblatt
parent 1d4a7666d5
commit 113938b6f4
14 changed files with 100 additions and 29 deletions
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12
include/jemalloc/internal/hpa.h
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@@ -2,6 +2,7 @@
#define JEMALLOC_INTERNAL_HPA_H
#include "jemalloc/internal/exp_grow.h"
#include "jemalloc/internal/hpa_hooks.h"
#include "jemalloc/internal/hpa_opts.h"
#include "jemalloc/internal/pai.h"
#include "jemalloc/internal/psset.h"
@@ -56,6 +57,14 @@ struct hpa_shard_s {
/* The base metadata allocator. */
base_t *base;
/*
* The HPA hooks for this shard. Eventually, once we have the
* hpa_central_t back, these should live there (since it doesn't make
* sense for different shards on the same hpa_central_t to have
* different hooks).
*/
hpa_hooks_t hooks;
/*
* This edata cache is the one we use when allocating a small extent
* from a pageslab. The pageslab itself comes from the centralized
@@ -109,7 +118,8 @@ struct hpa_shard_s {
*/
bool hpa_supported();
bool hpa_shard_init(hpa_shard_t *shard, emap_t *emap, base_t *base,
edata_cache_t *edata_cache, unsigned ind, const hpa_shard_opts_t *opts);
edata_cache_t *edata_cache, unsigned ind, const hpa_hooks_t *hooks,
const hpa_shard_opts_t *opts);
void hpa_shard_stats_accum(hpa_shard_stats_t *dst, hpa_shard_stats_t *src);
void hpa_shard_stats_merge(tsdn_t *tsdn, hpa_shard_t *shard,

15
include/jemalloc/internal/hpa_hooks.h Normal file
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@@ -0,0 +1,15 @@
#ifndef JEMALLOC_INTERNAL_HPA_HOOKS_H
#define JEMALLOC_INTERNAL_HPA_HOOKS_H
typedef struct hpa_hooks_s hpa_hooks_t;
struct hpa_hooks_s {
void *(*map)(size_t size);
void (*unmap)(void *ptr, size_t size);
void (*purge)(void *ptr, size_t size);
void (*hugify)(void *ptr, size_t size);
void (*dehugify)(void *ptr, size_t size);
};
extern hpa_hooks_t hpa_hooks_default;
#endif /* JEMALLOC_INTERNAL_HPA_HOOKS_H */

4
include/jemalloc/internal/pa.h
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@@ -131,7 +131,9 @@ bool pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, emap_t *emap, base_t *base,
* that we can boot without worrying about the HPA, then turn it on in a0.
*/
bool pa_shard_enable_hpa(tsdn_t *tsdn, pa_shard_t *shard,
const hpa_shard_opts_t *hpa_opts, const sec_opts_t *hpa_sec_opts);
const hpa_hooks_t *hpa_hooks, const hpa_shard_opts_t *hpa_opts,
const sec_opts_t *hpa_sec_opts);
/*
* We stop using the HPA when custom extent hooks are installed, but still
* redirect deallocations to it.