powerpc: sys_pkey_alloc() and sys_pkey_free() system calls

Finally this patch provides the ability for a process to allocate and free a protection key. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
mariux64 · Jan 20, 2018 · 9499ec1 · 9499ec1
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commit 9499ec1
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Showing 3 changed files with 5 additions and 3 deletions.
diff --git 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
@@ -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
@@ -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_ */