#include <linux/dcookies.h>
#include <linux/mutex.h>
#include <linux/path.h>
+#include <linux/compat.h>
#include <asm/uaccess.h>
/* The dcookies are allocated from a kmem_cache and
/* And here is where the userspace process can look up the cookie value
* to retrieve the path.
*/
-SYSCALL_DEFINE(lookup_dcookie)(u64 cookie64, char __user * buf, size_t len)
+SYSCALL_DEFINE3(lookup_dcookie, u64, cookie64, char __user *, buf, size_t, len)
{
unsigned long cookie = (unsigned long)cookie64;
int err = -EINVAL;
mutex_unlock(&dcookie_mutex);
return err;
}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_lookup_dcookie(u64 cookie64, long buf, long len)
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, size_t, len)
{
- return SYSC_lookup_dcookie(cookie64, (char __user *) buf, (size_t) len);
+#ifdef __BIG_ENDIAN
+ return sys_lookup_dcookie(((u64)w0 << 32) | w1, buf, len);
+#else
+ return sys_lookup_dcookie(((u64)w1 << 32) | w0, buf, len);
+#endif
}
-SYSCALL_ALIAS(sys_lookup_dcookie, SyS_lookup_dcookie);
#endif
static int dcookie_init(void)