Messages in this thread | | | Date | Thu, 1 Feb 2018 11:57:57 -0800 | From | Matthew Wilcox <> | Subject | Re: [PATCH] mm/kasan: Don't vfree() nonexistent vm_area. |
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On Thu, Feb 01, 2018 at 07:33:49PM +0300, Andrey Ryabinin wrote: > + case MEM_OFFLINE: { > + struct vm_struct *vm; > + > + /* > + * Only hot-added memory have vm_area. Freeing shadow > + * mapped during boot would be tricky, so we'll just > + * have to keep it. > + */ > + vm = find_vm_area((void *)shadow_start); > + if (vm) > + vfree((void *)shadow_start); > + }
This looks like a complicated way to spell 'is_vmalloc_addr' ...
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