diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2023-09-21 15:44:16 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-16 15:44:37 -0700 |
| commit | 75c70128a67311070115b90d826a229d4bbbb2b5 (patch) | |
| tree | 3272e3672193b6440e87c7753d968161eb62137a /mm/mempolicy.c | |
| parent | cda6d93672ac5dd8af778a3f3e6082e12233b65b (diff) | |
mm: mempolicy: make mpol_misplaced() to take a folio
In preparation for large folio numa balancing, make mpol_misplaced() to
take a folio, no functional change intended.
Link: https://lkml.kernel.org/r/20230921074417.24004-6-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index f1b00d6ac7ee..69c0eac7292c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2564,24 +2564,25 @@ static void sp_free(struct sp_node *n) } /** - * mpol_misplaced - check whether current page node is valid in policy + * mpol_misplaced - check whether current folio node is valid in policy * - * @page: page to be checked - * @vma: vm area where page mapped - * @addr: virtual address where page mapped + * @folio: folio to be checked + * @vma: vm area where folio mapped + * @addr: virtual address in @vma for shared policy lookup and interleave policy * - * Lookup current policy node id for vma,addr and "compare to" page's + * Lookup current policy node id for vma,addr and "compare to" folio's * node id. Policy determination "mimics" alloc_page_vma(). * Called from fault path where we know the vma and faulting address. * * Return: NUMA_NO_NODE if the page is in a node that is valid for this - * policy, or a suitable node ID to allocate a replacement page from. + * policy, or a suitable node ID to allocate a replacement folio from. */ -int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long addr) +int mpol_misplaced(struct folio *folio, struct vm_area_struct *vma, + unsigned long addr) { struct mempolicy *pol; struct zoneref *z; - int curnid = page_to_nid(page); + int curnid = folio_nid(folio); unsigned long pgoff; int thiscpu = raw_smp_processor_id(); int thisnid = cpu_to_node(thiscpu); @@ -2637,11 +2638,12 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long BUG(); } - /* Migrate the page towards the node whose CPU is referencing it */ + /* Migrate the folio towards the node whose CPU is referencing it */ if (pol->flags & MPOL_F_MORON) { polnid = thisnid; - if (!should_numa_migrate_memory(current, page, curnid, thiscpu)) + if (!should_numa_migrate_memory(current, &folio->page, curnid, + thiscpu)) goto out; } |