On Wed, Nov 29, 2023 at 04:59:43PM -0500, Pasha Tatashin wrote: > On Tue, Nov 28, 2023 at 6:52 PM Jason Gunthorpe <jgg@xxxxxxxx> wrote: > > > > On Tue, Nov 28, 2023 at 08:49:31PM +0000, Pasha Tatashin wrote: > > > Convert iommu/iommufd/* files to use the new page allocation functions > > > provided in iommu-pages.h. > > > > > > Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx> > > > --- > > > drivers/iommu/iommufd/iova_bitmap.c | 4 ++-- > > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > This is a short term allocation, it should not be counted, that is why > > it is already not using GFP_KERNEL_ACCOUNT. > > I made this change for completeness. I changed all calls to > get_free_page/alloc_page etc under driver/iommu to use the > iommu_alloc_* variants, this also helps future developers in this area > to use the right allocation functions. > The accounting is implemented using cheap per-cpu counters, so should > not affect the performance, I think it is OK to keep them here. Except it is a mis use of an API that should only be used for page table memory :( Jason
