+AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_SPLICE_COPY_FILE_RANGE], [
+ ZFS_LINUX_TEST_SRC([splice_copy_file_range], [
+ #include <linux/splice.h>
+ ], [
+ struct file *src_file __attribute__ ((unused)) = NULL;
+ loff_t src_off __attribute__ ((unused)) = 0;
+ struct file *dst_file __attribute__ ((unused)) = NULL;
+ loff_t dst_off __attribute__ ((unused)) = 0;
+ size_t len __attribute__ ((unused)) = 0;
+ splice_copy_file_range(src_file, src_off, dst_file, dst_off,
+ len);
+ ])
+])
+AC_DEFUN([ZFS_AC_KERNEL_VFS_SPLICE_COPY_FILE_RANGE], [
+ AC_MSG_CHECKING([whether splice_copy_file_range() is available])
+ ZFS_LINUX_TEST_RESULT([splice_copy_file_range], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_VFS_SPLICE_COPY_FILE_RANGE, 1,
+ [splice_copy_file_range() is available])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
+