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由 Li Xinhai 提交于
Since commit cf11e85f ("mm: hugetlb: optionally allocate gigantic hugepages using cma"), the gigantic page would be allocated from node which is not the preferred node, although there are pages available from that node. The reason is that the nid parameter has been ignored in alloc_gigantic_page(). Besides, the __GFP_THISNODE also need be checked if user required to alloc only from the preferred node. After this patch, the preferred node is tried first before other allowed nodes, and don't try to allocate from other nodes if __GFP_THISNODE is specified. If user don't specify the preferred node, the current node will be used as preferred node, which makes sure consistent behavior of allocating gigantic and non-gigantic hugetlb page. Fixes: cf11e85f ("mm: hugetlb: optionally allocate gigantic hugepages using cma") Signed-off-by: NLi Xinhai <lixinhai.lxh@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Reviewed-by: NMike Kravetz <mike.kravetz@oracle.com> Acked-by: NMichal Hocko <mhocko@suse.com> Cc: Roman Gushchin <guro@fb.com> Link: https://lkml.kernel.org/r/20200902025016.697260-1-lixinhai.lxh@gmail.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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