[PATCH] riscv: enable sys_clone3 syscall for rv64

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Enable the sys_clone3 syscall for RV64.  We simply include the generic
version.

Tested by running the program from

   https://lore.kernel.org/lkml/20190716130631.tohj4ub54md25dys@xxxxxxxxxx/

and verifying that it completes successfully.

Signed-off-by: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Christian Brauner <christian@xxxxxxxxxx>
---
 arch/riscv/include/uapi/asm/unistd.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h
index 0e2eeeb1fd27..13ce76cc5aff 100644
--- a/arch/riscv/include/uapi/asm/unistd.h
+++ b/arch/riscv/include/uapi/asm/unistd.h
@@ -18,6 +18,7 @@
 #ifdef __LP64__
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_SYS_CLONE3
 #endif /* __LP64__ */
 
 #include <asm-generic/unistd.h>
-- 
2.22.0




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