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Mon, 07 Dec 2020 03:34:15 -0800 (PST) From: yulei.kernel@gmail.com X-Google-Original-From: yuleixzhang@tencent.com To: linux-mm@kvack.org, akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, naoya.horiguchi@nec.com, viro@zeniv.linux.org.uk, pbonzini@redhat.com Cc: joao.m.martins@oracle.com, rdunlap@infradead.org, sean.j.christopherson@intel.com, xiaoguangrong.eric@gmail.com, kernellwp@gmail.com, lihaiwei.kernel@gmail.com, Yulei Zhang Subject: [RFC V2 11/37] mm: export mempolicy interfaces to serve dmem allocator Date: Mon, 7 Dec 2020 19:31:04 +0800 Message-Id: X-Mailer: git-send-email 2.28.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Yulei Zhang Export interface interleave_nid() to serve dmem allocator. Signed-off-by: Yulei Zhang --- 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 sh= ared_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 lo= ng addr); +unsigned interleave_nid(struct mempolicy *pol, struct vm_area_struct *vm= a, + unsigned long addr, int shift); bool vma_policy_mof(struct vm_area_struct *vma); =20 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_s= truct *vma, * freeing by another task. It is the caller's responsibility to free t= he * 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 =3D __get_vma_policy(vma, addr); @@ -1978,7 +1978,7 @@ static unsigned offset_il_node(struct mempolicy *po= l, unsigned long n) } =20 /* 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) { --=20 1.8.3.1