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Date: Mon, 7 Dec 2020 19:31:04 +0800 From: yulei.kernel@...il.com To: linux-mm@...ck.org, akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, naoya.horiguchi@....com, viro@...iv.linux.org.uk, pbonzini@...hat.com Cc: joao.m.martins@...cle.com, rdunlap@...radead.org, sean.j.christopherson@...el.com, xiaoguangrong.eric@...il.com, kernellwp@...il.com, lihaiwei.kernel@...il.com, Yulei Zhang <yuleixzhang@...cent.com> Subject: [RFC V2 11/37] mm: export mempolicy interfaces to serve dmem allocator From: Yulei Zhang <yuleixzhang@...cent.com> Export interface interleave_nid() to serve dmem allocator. Signed-off-by: Yulei Zhang <yuleixzhang@...cent.com> --- include/linux/mempolicy.h | 3 +++ mm/mempolicy.c | 4 ++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 5f1c74d..4789661 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -139,6 +139,9 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp, struct mempolicy *get_task_policy(struct task_struct *p); struct mempolicy *__get_vma_policy(struct vm_area_struct *vma, unsigned long addr); +struct mempolicy *get_vma_policy(struct vm_area_struct *vma, unsigned long addr); +unsigned interleave_nid(struct mempolicy *pol, struct vm_area_struct *vma, + unsigned long addr, int shift); bool vma_policy_mof(struct vm_area_struct *vma); extern void numa_default_policy(void); diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 3ca4898..efd80e5 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1813,7 +1813,7 @@ struct mempolicy *__get_vma_policy(struct vm_area_struct *vma, * freeing by another task. It is the caller's responsibility to free the * extra reference for shared policies. */ -static struct mempolicy *get_vma_policy(struct vm_area_struct *vma, +struct mempolicy *get_vma_policy(struct vm_area_struct *vma, unsigned long addr) { struct mempolicy *pol = __get_vma_policy(vma, addr); @@ -1978,7 +1978,7 @@ static unsigned offset_il_node(struct mempolicy *pol, unsigned long n) } /* Determine a node number for interleave */ -static inline unsigned interleave_nid(struct mempolicy *pol, +unsigned interleave_nid(struct mempolicy *pol, struct vm_area_struct *vma, unsigned long addr, int shift) { if (vma) { -- 1.8.3.1
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