syscall_wrappers: move setns()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

src/lxc/Makefile.am

@@ -360,7 +360,8 @@ lxc_user_nic_SOURCES = cmd/lxc_user_nic.c \
 		       log.c log.h \
 		       network.c network.h \
 		       parse.c parse.h \
-		       raw_syscalls.c raw_syscalls.h
+		       raw_syscalls.c raw_syscalls.h \
+		       syscall_wrappers.h
 lxc_usernsexec_SOURCES = cmd/lxc_usernsexec.c \
 			 conf.c conf.h \
 			 list.h \

src/lxc/attach.c

@@ -60,6 +60,7 @@
 #include "mainloop.h"
 #include "namespace.h"
 #include "raw_syscalls.h"
+#include "syscall_wrappers.h"
 #include "terminal.h"
 #include "utils.h"
 

src/lxc/cmd/lxc_user_nic.c

@@ -52,6 +52,7 @@
 #include "network.h"
 #include "parse.h"
 #include "raw_syscalls.h"
+#include "syscall_wrappers.h"
 #include "utils.h"
 
 #ifndef HAVE_STRLCPY

src/lxc/network.c

@@ -57,6 +57,7 @@
 #include "network.h"
 #include "nl.h"
 #include "raw_syscalls.h"
+#include "syscall_wrappers.h"
 #include "utils.h"
 
 #ifndef HAVE_STRLCPY

src/lxc/start.c

@@ -75,6 +75,7 @@
 #include "storage/storage.h"
 #include "storage/storage_utils.h"
 #include "sync.h"
+#include "syscall_wrappers.h"
 #include "terminal.h"
 #include "utils.h"
 

src/lxc/syscall_wrappers.h

@@ -25,6 +25,7 @@
 #endif
 #include <asm/unistd.h>
 #include <linux/keyctl.h>
+#include <sched.h>
 #include <stdint.h>
 #include <sys/syscall.h>
 #include <sys/types.h>
@@ -110,4 +111,35 @@ static int pivot_root(const char *new_root, const char *put_old)
 extern int pivot_root(const char *new_root, const char *put_old);
 #endif
 
+#if !defined(__NR_setns) && !defined(__NR_set_ns)
+	#if defined(__x86_64__)
+		#define __NR_setns 308
+	#elif defined(__i386__)
+		#define __NR_setns 346
+	#elif defined(__arm__)
+		#define __NR_setns 375
+	#elif defined(__aarch64__)
+		#define __NR_setns 375
+	#elif defined(__powerpc__)
+		#define __NR_setns 350
+	#elif defined(__s390__)
+		#define __NR_setns 339
+	#endif
+#endif
+
+/* Define setns() if missing from the C library */
+#ifndef HAVE_SETNS
+static inline int setns(int fd, int nstype)
+{
+#ifdef __NR_setns
+	return syscall(__NR_setns, fd, nstype);
+#elif defined(__NR_set_ns)
+	return syscall(__NR_set_ns, fd, nstype);
+#else
+	errno = ENOSYS;
+	return -1;
+#endif
+}
+#endif
+
 #endif /* __LXC_SYSCALL_WRAPPER_H */

src/lxc/utils.h

@@ -56,37 +56,6 @@ extern char *get_rundir(void);
 #endif
 #endif
 
-#if !defined(__NR_setns) && !defined(__NR_set_ns)
-	#if defined(__x86_64__)
-		#define __NR_setns 308
-	#elif defined(__i386__)
-		#define __NR_setns 346
-	#elif defined(__arm__)
-		#define __NR_setns 375
-	#elif defined(__aarch64__)
-		#define __NR_setns 375
-	#elif defined(__powerpc__)
-		#define __NR_setns 350
-	#elif defined(__s390__)
-		#define __NR_setns 339
-	#endif
-#endif
-
-/* Define setns() if missing from the C library */
-#ifndef HAVE_SETNS
-static inline int setns(int fd, int nstype)
-{
-#ifdef __NR_setns
-	return syscall(__NR_setns, fd, nstype);
-#elif defined(__NR_set_ns)
-	return syscall(__NR_set_ns, fd, nstype);
-#else
-	errno = ENOSYS;
-	return -1;
-#endif
-}
-#endif
-
 /* Define sethostname() if missing from the C library */
 #ifndef HAVE_SETHOSTNAME
 static inline int sethostname(const char *name, size_t len)