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alloc: pass rsize, not size, down to Mediumslab::alloc

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When we get to CHERI, sizes derived from sizeclasses are always precisely
representable, while other sizes may not be.

This should induce no change in behavior without CHERI, except that we might
PAL::zero slightly more memory this way.
This commit is contained in:
Nathaniel Filardo
2021-03-31 23:44:03 +01:00
committed by Nathaniel Wesley Filardo
parent a1f17e6060
commit c94e37f5fc
1 changed files with 4 additions and 4 deletions
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8
src/mem/alloc.h
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@@ -1289,8 +1289,8 @@ namespace snmalloc
if (slab != nullptr)
{
p =
Mediumslab::alloc<zero_mem, typename MemoryProvider::Pal>(slab, size);
p = Mediumslab::alloc<zero_mem, typename MemoryProvider::Pal>(
slab, rsize);
if (Mediumslab::full(slab))
sc->pop();
@@ -1312,8 +1312,8 @@ namespace snmalloc
Mediumslab::init(slab, public_state(), sizeclass, rsize);
chunkmap().set_slab(slab);
p =
Mediumslab::alloc<zero_mem, typename MemoryProvider::Pal>(slab, size);
p = Mediumslab::alloc<zero_mem, typename MemoryProvider::Pal>(
slab, rsize);
if (!Mediumslab::full(slab))
sc->insert(slab);