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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>
This commit is contained in:
Ram Pai 2018-01-18 17:50:45 -08:00 committed by Michael Ellerman
parent cf43d3b264
commit 9499ec1b5e
3 changed files with 5 additions and 3 deletions
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2
arch/powerpc/include/asm/systbl.h
View File

@ -389,3 +389,5 @@ COMPAT_SYS_SPU(preadv2)
COMPAT_SYS_SPU(pwritev2) COMPAT_SYS_SPU(pwritev2)
SYSCALL(kexec_file_load) SYSCALL(kexec_file_load)
SYSCALL(statx) SYSCALL(statx)
SYSCALL(pkey_alloc)
SYSCALL(pkey_free)

4
arch/powerpc/include/asm/unistd.h
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@ -12,13 +12,11 @@
#include <uapi/asm/unistd.h> #include <uapi/asm/unistd.h>
#define NR_syscalls 384 #define NR_syscalls 386
#define __NR__exit __NR_exit #define __NR__exit __NR_exit
#define __IGNORE_pkey_mprotect #define __IGNORE_pkey_mprotect
#define __IGNORE_pkey_alloc
#define __IGNORE_pkey_free
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__

2
arch/powerpc/include/uapi/asm/unistd.h
View File

@ -395,5 +395,7 @@
#define __NR_pwritev2 381 #define __NR_pwritev2 381
#define __NR_kexec_file_load 382 #define __NR_kexec_file_load 382
#define __NR_statx 383 #define __NR_statx 383
#define __NR_pkey_alloc 384
#define __NR_pkey_free 385
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */