zfs/config/kernel-filemap-splice-read.m4

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AC_DEFUN([ZFS_AC_KERNEL_SRC_COPY_SPLICE_READ], [
dnl #
dnl # Kernel 6.5 - generic_file_splice_read was removed in favor
dnl # of copy_splice_read for the .splice_read member of the
dnl # file_operations struct.
dnl #
ZFS_LINUX_TEST_SRC([has_copy_splice_read], [
#include <linux/fs.h>
struct file_operations fops __attribute__((unused)) = {
.splice_read = copy_splice_read,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_COPY_SPLICE_READ], [
AC_MSG_CHECKING([whether copy_splice_read() exists])
ZFS_LINUX_TEST_RESULT([has_copy_splice_read], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_COPY_SPLICE_READ, 1,
[copy_splice_read exists])
],[
AC_MSG_RESULT(no)
])
])