[PATCH 2/2] selftests/userfaultfd: improve syscall number definition
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STALE4058d
From: Andre Przywara <hidden>
Date: 2015-09-22 10:44:55
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lkml
Subsystem:
kernel selftest framework, the rest · Maintainers:
Shuah Khan, Shuah Khan, Linus Torvalds
At the moment the userfaultfd test program only supports x86 and an architecture called "powewrpc" ;-) Fix that typo and add the syscall numbers for other architectures as well. Also as in an ideal world a syscall number should come from the system header file <asm/unistd.h>, include that header and guard the explicit syscall number section below to avoid redefinitions. Signed-off-by: Andre Przywara <redacted> --- tools/testing/selftests/vm/userfaultfd.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 2c7cca6..63be27f 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c@@ -65,16 +65,27 @@ #include <sys/ioctl.h> #include <pthread.h> #include "../../../../include/uapi/linux/userfaultfd.h" +#include <asm/unistd.h> +/* ideally the above user header provides that number, but ... */ +#ifndef __NR_userfaultfd #ifdef __x86_64__ #define __NR_userfaultfd 323 #elif defined(__i386__) #define __NR_userfaultfd 374 -#elif defined(__powewrpc__) +#elif defined(__powerpc__) #define __NR_userfaultfd 364 +#elif defined(__ia64__) +#define __NR_userfaultfd 1343 +#elif defined(__arm__) +#define __NR_userfaultfd 388 +#elif defined(__aarch64__) +/* this is from the generic syscall table, used also on other architectures */ +#define __NR_userfaultfd 283 #else #error "missing __NR_userfaultfd definition" #endif +#endif /* !__NR_userfaultfd */ static unsigned long nr_cpus, nr_pages, nr_pages_per_cpu, page_size;
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2.5.1