On Mon, Jan 24, 2022 at 04:11:18PM +0100, Ben Hutchings wrote: > In Linux 4.14 and 4.19 these architectures still have their own > implementations of get_user_pages_fast(). These also need to force > the write flag on when taking the fast path. > > Fixes: 407faed92b4a ("gup: document and work around "COW can break either way" issue") > Fixes: 5e24029791e8 ("gup: document and work around "COW can break either way" issue") > Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> > --- > arch/mips/mm/gup.c | 9 ++++++++- > arch/s390/mm/gup.c | 9 ++++++++- > arch/sh/mm/gup.c | 9 ++++++++- > arch/sparc/mm/gup.c | 9 ++++++++- > 4 files changed, 32 insertions(+), 4 deletions(-) Thanks, now queued up. greg k-h