On Mon, Jan 24, 2022 at 02:38:28PM +0100, Ben Hutchings wrote: > This reverts commit 9bbd42e79720122334226afad9ddcac1c3e6d373, which > was commit 17839856fd588f4ab6b789f482ed3ffd7c403e1f upstream. The > backport was incorrect and incomplete: > > * It forced the write flag on in the generic __get_user_pages_fast(), > whereas only get_user_pages_fast() was supposed to do that. > * It only fixed the generic RCU-based implementation used by arm, > arm64, and powerpc. Before Linux 4.13, several other architectures > had their own implementations: mips, s390, sparc, sh, and x86. > > This will be followed by a (hopefully) correct backport. > > Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> > Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > --- > mm/gup.c | 48 ++++++++---------------------------------------- > mm/huge_memory.c | 7 ++++--- > 2 files changed, 12 insertions(+), 43 deletions(-) Both now queued up, thanks! greg k-h
