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Kernel: Remove the kmalloc_eternal heap :^)
This was a premature optimization from the early days of SerenityOS. The eternal heap was a simple bump pointer allocator over a static byte array. My original idea was to avoid heap fragmentation and improve data locality, but both ideas were rooted in cargo culting, not data. We would reserve 4 MiB at boot and only ended up using ~256 KiB, wasting the rest. This patch replaces all kmalloc_eternal() usage by regular kmalloc().
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46 changed files with 5 additions and 82 deletions
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@ -87,7 +87,6 @@ void MemoryStatsWidget::refresh()
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auto json_result = JsonValue::from_string(file_contents).release_value_but_fixme_should_propagate_errors();
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auto const& json = json_result.as_object();
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[[maybe_unused]] u32 kmalloc_eternal_allocated = json.get("kmalloc_eternal_allocated").to_u32();
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u32 kmalloc_allocated = json.get("kmalloc_allocated").to_u32();
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u32 kmalloc_available = json.get("kmalloc_available").to_u32();
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u64 user_physical_allocated = json.get("user_physical_allocated").to_u64();
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