[PATCH 1/2] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls

[Dan Streetman]

From: Ram Pai <linuxram at us.ibm.com>

BugLink: https://bugs.launchpad.net/bugs/1821625

Finally this patch provides the ability for a process to
allocate and free a protection key.

Signed-off-by: Ram Pai <linuxram at us.ibm.com>
Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
(cherry picked from commit 9499ec1b5e82321829e1c1510bcc37edc20b6f38)
Signed-off-by: Dan Streetman <ddstreet at canonical.com>
---
 arch/powerpc/include/asm/systbl.h      | 2 ++
 arch/powerpc/include/asm/unistd.h      | 4 +---
 arch/powerpc/include/uapi/asm/unistd.h | 2 ++
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 449912f057f63..dea4a952ec53d 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -389,3 +389,5 @@ COMPAT_SYS_SPU(preadv2)
 COMPAT_SYS_SPU(pwritev2)
 SYSCALL(kexec_file_load)
 SYSCALL(statx)
+SYSCALL(pkey_alloc)
+SYSCALL(pkey_free)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 9ba11dbcaca98..e0273bc5b0952 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,13 +12,11 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		384
+#define NR_syscalls		386
 
 #define __NR__exit __NR_exit
 
 #define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index df8684f31919a..5db438516e61b 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -395,5 +395,7 @@
 #define __NR_pwritev2		381
 #define __NR_kexec_file_load	382
 #define __NR_statx		383
+#define __NR_pkey_alloc		384
+#define __NR_pkey_free		385
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
-- 
2.20.1