1*c7046f76SMartin Matuskadnl # 2*c7046f76SMartin Matuskadnl # 5.3 API change 3*c7046f76SMartin Matuskadnl # The generic_fadvise() function is present since 4.19 kernel 4*c7046f76SMartin Matuskadnl # but it was not exported until Linux 5.3. 5*c7046f76SMartin Matuskadnl # 6*c7046f76SMartin MatuskaAC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FADVISE], [ 7*c7046f76SMartin Matuska ZFS_LINUX_TEST_SRC([generic_fadvise], [ 8*c7046f76SMartin Matuska #include <linux/fs.h> 9*c7046f76SMartin Matuska ], [ 10*c7046f76SMartin Matuska struct file *fp __attribute__ ((unused)) = NULL; 11*c7046f76SMartin Matuska loff_t offset __attribute__ ((unused)) = 0; 12*c7046f76SMartin Matuska loff_t len __attribute__ ((unused)) = 0; 13*c7046f76SMartin Matuska int advise __attribute__ ((unused)) = 0; 14*c7046f76SMartin Matuska generic_fadvise(fp, offset, len, advise); 15*c7046f76SMartin Matuska ]) 16*c7046f76SMartin Matuska]) 17*c7046f76SMartin Matuska 18*c7046f76SMartin MatuskaAC_DEFUN([ZFS_AC_KERNEL_GENERIC_FADVISE], [ 19*c7046f76SMartin Matuska AC_MSG_CHECKING([whether generic_fadvise() is available]) 20*c7046f76SMartin Matuska ZFS_LINUX_TEST_RESULT_SYMBOL([generic_fadvise], 21*c7046f76SMartin Matuska [generic_fadvise], [mm/fadvise.c], [ 22*c7046f76SMartin Matuska AC_MSG_RESULT(yes) 23*c7046f76SMartin Matuska AC_DEFINE(HAVE_GENERIC_FADVISE, 1, [yes]) 24*c7046f76SMartin Matuska ],[ 25*c7046f76SMartin Matuska AC_MSG_RESULT(no) 26*c7046f76SMartin Matuska ]) 27*c7046f76SMartin Matuska]) 28