diff --git a/config/kernel-dentry-operations.m4 b/config/kernel-dentry-operations.m4
index 660d6260b..dd470d760 100644
--- a/config/kernel-dentry-operations.m4
+++ b/config/kernel-dentry-operations.m4
@@ -147,6 +147,28 @@ AC_DEFUN([ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS], [
 	])
 ])
 
+dnl #
+dnl # 2.6.38 API change
+dnl # Added sb->s_d_op default dentry_operations member
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_SRC_S_D_OP], [
+	ZFS_LINUX_TEST_SRC([super_block_s_d_op], [
+		#include <linux/fs.h>
+	],[
+		struct super_block sb __attribute__ ((unused));
+		sb.s_d_op = NULL;
+	])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_S_D_OP], [
+	AC_MSG_CHECKING([whether super_block has s_d_op])
+	ZFS_LINUX_TEST_RESULT([super_block_s_d_op], [
+		AC_MSG_RESULT(yes)
+	], [
+		ZFS_LINUX_TEST_ERROR([super_block s_d_op])
+	])
+])
+
 AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY], [
         ZFS_AC_KERNEL_SRC_D_MAKE_ROOT
         ZFS_AC_KERNEL_SRC_D_OBTAIN_ALIAS
@@ -154,6 +176,7 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY], [
         ZFS_AC_KERNEL_SRC_D_SET_D_OP
         ZFS_AC_KERNEL_SRC_D_REVALIDATE_NAMEIDATA
         ZFS_AC_KERNEL_SRC_CONST_DENTRY_OPERATIONS
+        ZFS_AC_KERNEL_SRC_S_D_OP
 ])
 
 AC_DEFUN([ZFS_AC_KERNEL_DENTRY], [
@@ -163,4 +186,5 @@ AC_DEFUN([ZFS_AC_KERNEL_DENTRY], [
         ZFS_AC_KERNEL_D_SET_D_OP
         ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA
         ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS
+        ZFS_AC_KERNEL_S_D_OP
 ])
diff --git a/include/os/linux/zfs/sys/zpl.h b/include/os/linux/zfs/sys/zpl.h
index c5b347728..20a3dc674 100644
--- a/include/os/linux/zfs/sys/zpl.h
+++ b/include/os/linux/zfs/sys/zpl.h
@@ -45,6 +45,7 @@ extern const struct inode_operations zpl_inode_operations;
 extern const struct inode_operations zpl_dir_inode_operations;
 extern const struct inode_operations zpl_symlink_inode_operations;
 extern const struct inode_operations zpl_special_inode_operations;
+extern dentry_operations_t zpl_dentry_operations;
 
 /* zpl_file.c */
 extern ssize_t zpl_read_common(struct inode *ip, const char *buf,
diff --git a/module/os/linux/zfs/zfs_vfsops.c b/module/os/linux/zfs/zfs_vfsops.c
index c0acaab0b..154933a4c 100644
--- a/module/os/linux/zfs/zfs_vfsops.c
+++ b/module/os/linux/zfs/zfs_vfsops.c
@@ -1926,6 +1926,7 @@ zfs_domount(struct super_block *sb, zfs_mnt_t *zm, int silent)
 	sb->s_op = &zpl_super_operations;
 	sb->s_xattr = zpl_xattr_handlers;
 	sb->s_export_op = &zpl_export_operations;
+	sb->s_d_op = &zpl_dentry_operations;
 
 	/* Set features for file system. */
 	zfs_set_fuid_feature(zfsvfs);
diff --git a/module/os/linux/zfs/zpl_inode.c b/module/os/linux/zfs/zpl_inode.c
index 7912a5b3d..124021166 100644
--- a/module/os/linux/zfs/zpl_inode.c
+++ b/module/os/linux/zfs/zpl_inode.c
@@ -602,6 +602,46 @@ out:
 	return (error);
 }
 
+static int
+#ifdef HAVE_D_REVALIDATE_NAMEIDATA
+zpl_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+	unsigned int flags = (nd ? nd->flags : 0);
+#else
+zpl_revalidate(struct dentry *dentry, unsigned int flags)
+{
+#endif /* HAVE_D_REVALIDATE_NAMEIDATA */
+	/* CSTYLED */
+	zfsvfs_t *zfsvfs = dentry->d_sb->s_fs_info;
+	int error;
+
+	if (flags & LOOKUP_RCU)
+		return (-ECHILD);
+
+	/*
+	 * After a rollback negative dentries created before the rollback
+	 * time must be invalidated.  Otherwise they can obscure files which
+	 * are only present in the rolled back dataset.
+	 */
+	if (dentry->d_inode == NULL) {
+		spin_lock(&dentry->d_lock);
+		error = time_before(dentry->d_time, zfsvfs->z_rollback_time);
+		spin_unlock(&dentry->d_lock);
+
+		if (error)
+			return (0);
+	}
+
+	/*
+	 * The dentry may reference a stale inode if a mounted file system
+	 * was rolled back to a point in time where the object didn't exist.
+	 */
+	if (dentry->d_inode && ITOZ(dentry->d_inode)->z_is_stale)
+		return (0);
+
+	return (1);
+}
+
 const struct inode_operations zpl_inode_operations = {
 	.setattr	= zpl_setattr,
 	.getattr	= zpl_getattr,
@@ -690,3 +730,7 @@ const struct inode_operations zpl_special_inode_operations = {
 	.get_acl	= zpl_get_acl,
 #endif /* CONFIG_FS_POSIX_ACL */
 };
+
+dentry_operations_t zpl_dentry_operations = {
+	.d_revalidate	= zpl_revalidate,
+};
diff --git a/tests/test-runner/bin/zts-report.py b/tests/test-runner/bin/zts-report.py
index 65233c41b..4c3c29384 100755
--- a/tests/test-runner/bin/zts-report.py
+++ b/tests/test-runner/bin/zts-report.py
@@ -189,7 +189,6 @@ known = {
     'removal/removal_with_zdb': ['SKIP', known_reason],
     'rootpool/setup': ['SKIP', na_reason],
     'rsend/rsend_008_pos': ['SKIP', '6066'],
-    'snapshot/rollback_003_pos': ['SKIP', '6143'],
     'vdev_zaps/vdev_zaps_007_pos': ['FAIL', known_reason],
     'xattr/xattr_008_pos': ['SKIP', na_reason],
     'xattr/xattr_009_neg': ['SKIP', na_reason],
@@ -222,8 +221,6 @@ maybe = {
     'cli_root/zdb/zdb_006_pos': ['FAIL', known_reason],
     'cli_root/zfs_get/zfs_get_004_pos': ['FAIL', known_reason],
     'cli_root/zfs_get/zfs_get_009_pos': ['SKIP', '5479'],
-    'cli_root/zfs_rollback/zfs_rollback_001_pos': ['FAIL', '6415'],
-    'cli_root/zfs_rollback/zfs_rollback_002_pos': ['FAIL', '6416'],
     'cli_root/zfs_share/setup': ['SKIP', share_reason],
     'cli_root/zfs_snapshot/zfs_snapshot_002_neg': ['FAIL', known_reason],
     'cli_root/zfs_unshare/setup': ['SKIP', share_reason],
diff --git a/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh b/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh
index 342e7df58..59e7c110d 100755
--- a/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh
+++ b/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh
@@ -48,10 +48,6 @@
 
 verify_runnable "both"
 
-if is_linux; then
-	log_unsupported "Test case is known to fail on Linux"
-fi
-
 function cleanup
 {
 	typeset snap=""
@@ -61,18 +57,16 @@ function cleanup
 	log_must zfs mount -a
 	unset __ZFS_POOL_RESTRICT
 
-	for snap in "$SNAPPOOL.1" "$SNAPPOOL"
-	do
-		snapexists $snap
-		[[ $? -eq 0 ]] && \
-			log_must zfs destroy $snap
+	for snap in "$SNAPPOOL.1" "$SNAPPOOL"; do
+		if snapexists $snap; then
+			destroy_snapshot $snap
+		fi
 	done
 
-	for fs in "$TESTPOOL/$TESTFILE/$TESTFILE.1" "$TESTPOOL/$TESTFILE"
-	do
-		datasetexists $fs
-		[[ $? -eq 0 ]] && \
-			log_must zfs destroy -r $fs
+	for fs in "$TESTPOOL/$TESTFILE/$TESTFILE.1" "$TESTPOOL/$TESTFILE"; do
+		if datasetexists $fs; then
+			destroy_dataset $fs -r
+		fi
 	done
 
 	[[ -e /$TESTPOOL ]] && \
@@ -107,4 +101,11 @@ log_must touch /$TESTPOOL/$TESTFILE/$TESTFILE.1
 
 log_must zfs rollback $SNAPPOOL.1
 
+#
+# Workaround for issue #6143.  Issuing a `df` seems to properly force any
+# negative dcache entries to be invalidated preventing subsequent failures
+# when accessing the mount point.  Additional investigation required.
+#
+log_must df
+
 log_pass "Rollbacks succeed when nested file systems are present."