Messages in this thread | | | Date | Wed, 14 Aug 2019 16:09:24 +0000 | From | Wei Yang <> | Subject | Re: [PATCH 3/3] mm/mmap.c: extract __vma_unlink_list as counter part for __vma_link_list |
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On Wed, Aug 14, 2019 at 11:19:37AM +0200, Vlastimil Babka wrote: >On 8/14/19 8:57 AM, Wei Yang wrote: >> On Tue, Aug 13, 2019 at 10:16:11PM -0700, Christoph Hellwig wrote: >>>Btw, is there any good reason we don't use a list_head for vma linkage? >> >> Not sure, maybe there is some historical reason? > >Seems it was single-linked until 2010 commit 297c5eee3724 ("mm: make the vma >list be doubly linked") and I guess it was just simpler to add the vm_prev link. > >Conversion to list_head might be an interesting project for some "advanced >beginner" in the kernel :)
Seems it will touch many code ...
-- Wei Yang Help you, Help me
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