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Move junking out of arena/tcache code.

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This is debug only and we keep it off the fast path.  Moving it here simplifies
the internal logic.

This never tries to junk on regions that were shrunk via xallocx.  I think this
is fine for two reasons:
- The shrunk-with-xallocx case is rare.
- We don't always do that anyway before this diff (it depends on the opt
  settings and extent hooks in effect).
This commit is contained in:
David Goldblatt 2020-02-28 11:37:39 -08:00 • committed by David Goldblatt
parent b428dceeaf
commit 79f1ee2fc0
9 changed files with 249 additions and 248 deletions
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8
include/jemalloc/internal/large_externs.h
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@ -12,13 +12,7 @@ void *large_ralloc(tsdn_t *tsdn, arena_t *arena, void *ptr, size_t usize,
size_t alignment, bool zero, tcache_t *tcache,
hook_ralloc_args_t *hook_args);
typedef void (large_dalloc_junk_t)(void *, size_t);
extern large_dalloc_junk_t *JET_MUTABLE large_dalloc_junk;
typedef void (large_dalloc_maybe_junk_t)(void *, size_t);
extern large_dalloc_maybe_junk_t *JET_MUTABLE large_dalloc_maybe_junk;
void large_dalloc_prep_junked_locked(tsdn_t *tsdn, edata_t *edata);
void large_dalloc_prep_locked(tsdn_t *tsdn, edata_t *edata);
void large_dalloc_finish(tsdn_t *tsdn, edata_t *edata);
void large_dalloc(tsdn_t *tsdn, edata_t *edata);
size_t large_salloc(tsdn_t *tsdn, const edata_t *edata);