1dnl # 2dnl # 5.3 API change 3dnl # The generic_fadvise() function is present since 4.19 kernel 4dnl # but it was not exported until Linux 5.3. 5dnl # 6AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FADVISE], [ 7 ZFS_LINUX_TEST_SRC([generic_fadvise], [ 8 #include <linux/fs.h> 9 ], [ 10 struct file *fp __attribute__ ((unused)) = NULL; 11 loff_t offset __attribute__ ((unused)) = 0; 12 loff_t len __attribute__ ((unused)) = 0; 13 int advise __attribute__ ((unused)) = 0; 14 generic_fadvise(fp, offset, len, advise); 15 ]) 16]) 17 18AC_DEFUN([ZFS_AC_KERNEL_GENERIC_FADVISE], [ 19 AC_MSG_CHECKING([whether generic_fadvise() is available]) 20 ZFS_LINUX_TEST_RESULT_SYMBOL([generic_fadvise], 21 [generic_fadvise], [mm/fadvise.c], [ 22 AC_MSG_RESULT(yes) 23 AC_DEFINE(HAVE_GENERIC_FADVISE, 1, [yes]) 24 ],[ 25 AC_MSG_RESULT(no) 26 ]) 27]) 28