project-base/server-skynet-source-3rd-jemalloc
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Mark head state during dss alloc.

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Specifically, the extent_dalloc_gap relies on the correct head state to
coalesce.
This commit is contained in:
Qi Wang 2021-03-12 11:27:00 -08:00 committed by Qi Wang
parent 11127240ca
commit 3913077146
1 changed files with 4 additions and 2 deletions
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6
src/extent_dss.c
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@ -140,6 +140,8 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size,
goto label_oom;
}
bool head_state = opt_retain ? EXTENT_IS_HEAD :
EXTENT_NOT_HEAD;
/*
* Compute how much page-aligned gap space (if any) is
* necessary to satisfy alignment. This space can be
@ -157,7 +159,7 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size,
SC_NSIZES, extent_sn_next(
&arena->pa_shard.pac),
extent_state_active, false, true,
EXTENT_PAI_PAC, EXTENT_NOT_HEAD);
EXTENT_PAI_PAC, head_state);
}
/*
* Compute the address just past the end of the desired
@ -206,7 +208,7 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size,
arena_ind_get(arena), ret, size,
size, false, SC_NSIZES,
extent_state_active, false, true,
EXTENT_PAI_PAC, EXTENT_NOT_HEAD);
EXTENT_PAI_PAC, head_state);
if (extent_purge_forced_wrapper(tsdn,
ehooks, &edata, 0, size)) {
memset(ret, 0, size);