On Thu, Dec 12, 2019 at 10:48:32AM +0000, Catalin Marinas wrote:
> On Wed, Dec 11, 2019 at 03:41:57PM +0000, Mark Brown wrote:

> >  #define PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
> >  #define PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */

> Since the BTI will likely be merged before the MTE series, please
> consider reserving 0x20 as well. The updated patch, acked by Arnd:

Sure.