diff --git a/config/kernel-fadvise.m4 b/config/kernel-fadvise.m4
deleted file mode 100644
index 08912de16..000000000
--- a/config/kernel-fadvise.m4
+++ /dev/null
@@ -1,23 +0,0 @@
-dnl #
-dnl # Linux 4.19 API
-dnl #
-AC_DEFUN([ZFS_AC_KERNEL_SRC_FADVISE], [
-	ZFS_LINUX_TEST_SRC([file_fadvise], [
-		#include <linux/fs.h>
-
-		static const struct file_operations
-		    fops __attribute__ ((unused)) = {
-			.fadvise = NULL,
-		};
-	],[])
-])
-
-AC_DEFUN([ZFS_AC_KERNEL_FADVISE], [
-	AC_MSG_CHECKING([whether fops->fadvise() exists])
-	ZFS_LINUX_TEST_RESULT([file_fadvise], [
-		AC_MSG_RESULT(yes)
-		AC_DEFINE(HAVE_FILE_FADVISE, 1, [fops->fadvise() exists])
-	],[
-		AC_MSG_RESULT(no)
-	])
-])
diff --git a/config/kernel.m4 b/config/kernel.m4
index 2d39329be..5fa18db4f 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -42,7 +42,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
 	ZFS_AC_KERNEL_SRC_GLOBAL_PAGE_STATE
 	ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE
 	ZFS_AC_KERNEL_SRC_PDE_DATA
-	ZFS_AC_KERNEL_SRC_FADVISE
 	ZFS_AC_KERNEL_SRC_GENERIC_FADVISE
 	ZFS_AC_KERNEL_SRC_SCHED
 	ZFS_AC_KERNEL_SRC_USLEEP_RANGE
@@ -165,7 +164,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
 	ZFS_AC_KERNEL_GLOBAL_PAGE_STATE
 	ZFS_AC_KERNEL_OBJTOOL
 	ZFS_AC_KERNEL_PDE_DATA
-	ZFS_AC_KERNEL_FADVISE
 	ZFS_AC_KERNEL_GENERIC_FADVISE
 	ZFS_AC_KERNEL_SCHED
 	ZFS_AC_KERNEL_USLEEP_RANGE
diff --git a/module/os/linux/zfs/zpl_file.c b/module/os/linux/zfs/zpl_file.c
index 96b374ad9..25aa43416 100644
--- a/module/os/linux/zfs/zpl_file.c
+++ b/module/os/linux/zfs/zpl_file.c
@@ -38,9 +38,7 @@
     defined(HAVE_VFS_FILEMAP_DIRTY_FOLIO)
 #include <linux/pagemap.h>
 #endif
-#ifdef HAVE_FILE_FADVISE
 #include <linux/fadvise.h>
-#endif
 #ifdef HAVE_VFS_FILEMAP_DIRTY_FOLIO
 #include <linux/writeback.h>
 #endif
@@ -717,7 +715,6 @@ zpl_ioctl_getversion(struct file *filp, void __user *arg)
 	return (copy_to_user(arg, &generation, sizeof (generation)));
 }
 
-#ifdef HAVE_FILE_FADVISE
 static int
 zpl_fadvise(struct file *filp, loff_t offset, loff_t len, int advice)
 {
@@ -770,7 +767,6 @@ zpl_fadvise(struct file *filp, loff_t offset, loff_t len, int advice)
 
 	return (error);
 }
-#endif /* HAVE_FILE_FADVISE */
 
 #define	ZFS_FL_USER_VISIBLE	(FS_FL_USER_VISIBLE | ZFS_PROJINHERIT_FL)
 #define	ZFS_FL_USER_MODIFIABLE	(FS_FL_USER_MODIFIABLE | ZFS_PROJINHERIT_FL)
@@ -1130,9 +1126,7 @@ const struct file_operations zpl_file_operations = {
 #ifdef HAVE_VFS_DEDUPE_FILE_RANGE
 	.dedupe_file_range	= zpl_dedupe_file_range,
 #endif
-#ifdef HAVE_FILE_FADVISE
 	.fadvise	= zpl_fadvise,
-#endif
 	.unlocked_ioctl	= zpl_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= zpl_compat_ioctl,