Messages in this thread | | | Subject | Re: [PATCH 1/5] mm/vmalloc.c: correct a few logic error for __insert_vmap_area() | From | zijun_hu <> | Date | Tue, 27 Sep 2016 14:07:02 +0800 |
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On 09/22/2016 07:15 AM, David Rientjes wrote: > On Thu, 22 Sep 2016, zijun_hu wrote: > >>> We don't support inserting when va->va_start == tmp_va->va_end, plain and >>> simple. There's no reason to do so. NACK to the patch. >>> >> i am sorry i disagree with you because >> 1) in almost all context of vmalloc, original logic treat the special case as normal >> for example, __find_vmap_area() or alloc_vmap_area() > > The ranges are [start, end) like everywhere else. __find_vmap_area() is > implemented as such for the passed address. The address is aligned in > alloc_vmap_area(), there's no surprise here. The logic is correct in > __insert_vmap_area(). > i am sorry to disagree with you i will resend this patch with more detailed illustration
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