Re: [PATCH v4 03/12] mm: Reserve asm-generic prot flag 0x10 for arch use

From: Mark Brown
Date: Thu Dec 12 2019 - 11:16:42 EST

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:


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