On Fri, Mar 02, 2018 at 01:32:09PM -0800, Tim Chen wrote: > From: Andy Lutomirski <luto@xxxxxxxxxx> > commit: f39681ed0f48498b80455095376f11535feea332 > > This adds a new variable to mmu_context_t: ctx_id. > ctx_id uniquely identifies the mm_struct and will never be reused. > > Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> > Reviewed-by: Nadav Amit <nadav.amit@xxxxxxxxx> > Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx> > Cc: Borislav Petkov <bp@xxxxxxxxx> > Cc: Dave Hansen <dave.hansen@xxxxxxxxx> > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > Cc: Mel Gorman <mgorman@xxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Rik van Riel <riel@xxxxxxxxxx> > Cc: linux-mm@xxxxxxxxx > Link: http://lkml.kernel.org/r/413a91c24dab3ed0caa5f4e4d017d87b0857f920.1498751203.git.luto@xxxxxxxxxx > Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> > Signed-off-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> > --- > arch/x86/include/asm/mmu.h | 15 +++++++++++++-- > arch/x86/include/asm/mmu_context.h | 5 +++++ > arch/x86/mm/tlb.c | 2 ++ > 3 files changed, 20 insertions(+), 2 deletions(-) > Does not apply to 4.4.y :( Can you provide a working backport for that tree? thanks, greg k-h