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Extents: Break extent-struct/arena interactions

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Specifically, the extent_arena_[g|s]et functions and the address randomization.

These are the only things that tie the extent struct itself to the arena code.
This commit is contained in:
David T. Goldblatt 2019-09-20 18:20:22 -07:00 • committed by David Goldblatt
parent 529cfe2abc
commit 41187bdfb0
9 changed files with 106 additions and 83 deletions
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9
src/extent_dss.c
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@ -153,9 +153,9 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size,
size_t gap_size_page = (uintptr_t)ret -
(uintptr_t)gap_addr_page;
if (gap_size_page != 0) {
extent_init(gap, arena, gap_addr_page,
gap_size_page, false, SC_NSIZES,
arena_extent_sn_next(arena),
extent_init(gap, arena_ind_get(arena),
gap_addr_page, gap_size_page, false,
SC_NSIZES, arena_extent_sn_next(arena),
extent_state_active, false, true, true,
EXTENT_NOT_HEAD);
}
@ -198,7 +198,8 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size,
EXTENT_HOOKS_INITIALIZER;
extent_t extent;
extent_init(&extent, arena, ret, size,
extent_init(&extent,
arena_ind_get(arena), ret, size,
size, false, SC_NSIZES,
extent_state_active, false, true,
true, EXTENT_NOT_HEAD);