Hi Ard, On Thu, Dec 03, 2015 at 11:55:53AM +0100, Ard Biesheuvel wrote: > On 30 November 2015 at 13:28, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: > > This introduces the MEMBLOCK_NOMAP attribute and the required plumbing > > to make it usable as an indicator that some parts of normal memory > > should not be covered by the kernel direct mapping. It is up to the > > arch to actually honor the attribute when laying out this mapping, > > but the memblock code itself is modified to disregard these regions > > for allocations and other general use. > > > > Cc: linux-mm@xxxxxxxxx > > Cc: Alexander Kuleshov <kuleshovmail@xxxxxxxxx> > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > > Reviewed-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > > --- > > include/linux/memblock.h | 8 ++++++ > > mm/memblock.c | 28 ++++++++++++++++++++ > > 2 files changed, 36 insertions(+) [...] > May I kindly ask team-mm/Andrew/Alexander to chime in here, and > indicate whether you are ok with this patch going in for 4.5? If so, > could you please provide your ack so the patch can be kept together > with the rest of the series, which depends on it? I'm keen to queue this in the arm64 tree, since it's a prerequisite for cleaning up a bunch of our EFI code and sharing it with 32-bit ARM. > I should note that this change should not affect any memblock users > that never set the MEMBLOCK_NOMAP flag, but please, if you see any > issues beyond 'this may conflict with other stuff we have queued for > 4.5', please do let me know. Indeed, I can't see that this would cause any issues, but I would really like an Ack from one of the MM maintainers before taking this. Please could somebody take a look? Will -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>