On 09/19/23 14:48, Muchun Song wrote: > > > On 2023/9/19 07:02, Mike Kravetz wrote: > > Update the internal hugetlb restore vmemmap code path such that TLB > > flushing can be batched. Use the existing mechanism of passing the > > VMEMMAP_REMAP_NO_TLB_FLUSH flag to indicate flushing should not be > > performed for individual pages. The routine hugetlb_vmemmap_restore_folios > > is the only user of this new mechanism, and it will perform a global > > flush after all vmemmap is restored. > > > > Signed-off-by: Joao Martins <joao.m.martins@xxxxxxxxxx> > > Signed-off-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> > > --- > > mm/hugetlb_vmemmap.c | 39 ++++++++++++++++++++++++--------------- > > 1 file changed, 24 insertions(+), 15 deletions(-) > > > > diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c > > index a6c356acb1fc..ae2229f19158 100644 > > --- a/mm/hugetlb_vmemmap.c > > +++ b/mm/hugetlb_vmemmap.c > > @@ -460,18 +460,19 @@ static int alloc_vmemmap_page_list(unsigned long start, unsigned long end, > > * @end: end address of the vmemmap virtual address range that we want to > > * remap. > > * @reuse: reuse address. > > + * @flags: modify behavior for bulk operations > > Please keep the comment consistent with vmemmap_remap_split(), which says: > "@flags: modifications to vmemmap_remap_walk flags". Thanks, will change in next version. -- Mike Kravetz
