On Tue, Jul 21, 2020 at 02:31:16PM -0700, Ralph Campbell wrote:
The src_owner field in struct migrate_vma is being used for two purposes, it acts as a selection filter for which types of pages are to be migrated and it identifies device private pages owned by the caller. Split this into separate parameters so the src_owner field can be used just to identify device private pages owned by the caller of migrate_vma_setup(). Rename the src_owner field to pgmap_owner to reflect it is now used only to identify which device private pages to migrate.
Signed-off-by: Ralph Campbell rcampbell@nvidia.com
arch/powerpc/kvm/book3s_hv_uvmem.c | 4 +++- drivers/gpu/drm/nouveau/nouveau_dmem.c | 4 +++- include/linux/migrate.h | 13 +++++++++---- lib/test_hmm.c | 6 ++++-- mm/migrate.c | 6 ++++-- 5 files changed, 23 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index 09d8119024db..6850bd04bcb9 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn;
- mig.flags = MIGRATE_VMA_SELECT_SYSTEM;
/* * We come here with mmap_lock write lock held just for @@ -577,7 +578,8 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn;
- mig.src_owner = &kvmppc_uvmem_pgmap;
- mig.pgmap_owner = &kvmppc_uvmem_pgmap;
- mig.flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE;
mutex_lock(&kvm->arch.uvmem_lock);
For the kvmppc changes above, Reviewed-by: Bharata B Rao bharata@linux.ibm.com