[PATCH] ppc64: poison initmem
Poison initmem after we free it so we catch use after free issues. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -392,6 +392,7 @@ void free_initmem(void)
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addr = (unsigned long)__init_begin;
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addr = (unsigned long)__init_begin;
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for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
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for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
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memset((void *)addr, 0xcc, PAGE_SIZE);
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ClearPageReserved(virt_to_page(addr));
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ClearPageReserved(virt_to_page(addr));
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set_page_count(virt_to_page(addr), 1);
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set_page_count(virt_to_page(addr), 1);
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free_page(addr);
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free_page(addr);
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