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Fix comment to represent current PAL API.

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This commit is contained in:
Matthew Parkinson
2019-02-15 09:24:01 +00:00
parent bf58015c25
commit ac8e5e4e5b
1 changed files with 4 additions and 1 deletions
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5
src/mem/largealloc.h
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@@ -191,10 +191,13 @@ namespace snmalloc
{ {
if ((decommit_strategy != DecommitNone) || (large_class > 0)) if ((decommit_strategy != DecommitNone) || (large_class > 0))
{ {
// Only the first page needs to be zeroed, as this was decommitted. // The first page is already in "use" for the stack element,
// this will need zeroing for a YesZero call.
if (zero_mem == YesZero) if (zero_mem == YesZero)
memory_provider.template zero<true>(p, OS_PAGE_SIZE); memory_provider.template zero<true>(p, OS_PAGE_SIZE);
// Notify we are using the rest of the allocation.
// Passing zero_mem ensures the PAL provides zeroed pages if required.
memory_provider.template notify_using<zero_mem>( memory_provider.template notify_using<zero_mem>(
(void*)((size_t)p + OS_PAGE_SIZE), (void*)((size_t)p + OS_PAGE_SIZE),
bits::align_up(size, OS_PAGE_SIZE) - OS_PAGE_SIZE); bits::align_up(size, OS_PAGE_SIZE) - OS_PAGE_SIZE);