[PATCH] powerpc: Wire up copy_file_range() syscall

[Chandan Rajendra]

Test runs on a ppc64 BE guest succeeded.

Signed-off-by: Chandan Rajendra <chandan at linux.vnet.ibm.com>
---
The "yet to be upstreamed" fstests test
(https://github.com/chandanr/xfstests/commit/c2ce6196711e02792b434448e29f45b5f9a955f6)
was used to test the syscall. The test in turn depends on the usage of xfs_io's
copy_file_range command.
(https://github.com/chandanr/xfsprogs-dev/commit/9222b48a3d03fb9d690323b460d882e559bd1080)
I will post these patches to the respective mailing lists once this patch is
mainlined.

 arch/powerpc/include/asm/systbl.h      | 1 +
 arch/powerpc/include/asm/unistd.h      | 2 +-
 arch/powerpc/include/uapi/asm/unistd.h | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 5654ece..3fa9df7 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -383,3 +383,4 @@ SYSCALL(ni_syscall)
 SYSCALL(ni_syscall)
 SYSCALL(ni_syscall)
 SYSCALL(mlock2)
+SYSCALL(copy_file_range)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 6a5ace5..1f2594d 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,7 +12,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		379
+#define NR_syscalls		380
 
 #define __NR__exit __NR_exit
 
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index 12a0565..940290d 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -389,5 +389,6 @@
 #define __NR_userfaultfd	364
 #define __NR_membarrier		365
 #define __NR_mlock2		378
+#define __NR_copy_file_range	379
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
-- 
2.1.0