On Thu, Aug 10, 2023 at 06:00:12PM +0200, Richard Weinberger wrote: > Currently sg_virt() is used while filling the sg list from LEB data. > This approach cannot work with highmem. > > Refactor ubi_eba_read_leb_sg() to use kmap_atomic() for sg list > access. > Since kmap_atomic() disables preempt a bounce buffer is needed. > kmap_local_page() is not used to allow easy backporting of this patch > to older kernels. > > The followup patches in this series will switch to kmap_sg() > and we can remove our own helper and the bounce buffer. Please just use kmap_local and avoid the bounce buffering.
