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Remove one redundant fence

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This commit is contained in:
Xiaolong Peng 2026-01-16 21:57:51 -08:00
parent 5e080fb522
commit 8802b94844
1 changed files with 2 additions and 3 deletions
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5
src/hotspot/share/gc/shenandoah/shenandoahAllocator.cpp
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@ -338,11 +338,10 @@ int ShenandoahAllocator<ALLOC_PARTITION>::refresh_alloc_regions(ShenandoahAllocR
*obj = allocate_in<false>(reserved[i], true, *req, *in_new_region, ready_for_retire);
assert(*obj != nullptr, "Should always succeed");
satisfy_alloc_req_first = false;
// Enforce order here,
// allocate_in must be executed before set the region to active alloc region.
OrderAccess::fence();
}
reserved[i]->set_active_alloc_region();
// Enforce order here,
// set_active_alloc_region must be executed before storing the region to the shared address
OrderAccess::fence();
log_debug(gc, alloc)("%sAllocator: Storing heap region %li to alloc region %i",
_alloc_partition_name, reserved[i]->index(), refreshable[i]->alloc_region_index);