[RFC 02/12] mm: Generalize the mprotect implementation to support extensions
flat view
From: Jarkko Sakkinen <hidden>
Date: 2018-09-10 10:12:40
Also in:
keyrings, linux-mm
On Fri, 2018-09-07 at 15:34 -0700, Alison Schofield wrote:
quoted hunk ↗ jump to hunk
Today mprotect is implemented to support legacy mprotect behavior plus an extension for memory protection keys. Make it more generic so that it can support additional extensions in the future. This is done is preparation for adding a new system call for memory encyption keys. The intent is that the new encrypted mprotect will be another extension to legacy mprotect. Signed-off-by: Alison Schofield <alison.schofield@intel.com> --- mm/mprotect.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)diff --git a/mm/mprotect.c b/mm/mprotect.c index 68dc476310c0..56e64ef7931e 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c@@ -35,6 +35,8 @@ #include "internal.h" +#define NO_PKEY -1
This commit does not make anything more generic but it does take away a magic number. The code change is senseful. The commit message is nonsense. PS. Please use @linux.intel.com for LKML. /Jarkko