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Kernel: Assert that a KmallocSubheap fits inside a page
Since we allocate the subheap in the first page of the given storage let's assert that the subheap can actually fit in a single page, to prevent the possible future headache of trying to debug the cause of random kernel memory corruption :^)
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@ -58,6 +58,7 @@ struct KmallocGlobalData {
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void add_subheap(u8* storage, size_t storage_size)
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{
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dbgln("Adding kmalloc subheap @ {} with size {}", storage, storage_size);
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static_assert(sizeof(KmallocSubheap) <= PAGE_SIZE);
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auto* subheap = new (storage) KmallocSubheap(storage + PAGE_SIZE, storage_size - PAGE_SIZE);
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subheaps.append(*subheap);
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}
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