Export symbols for ZIL interface

These symbols are needed by consumers (i.e. Lustre) who wish to
integrate with the ZIL.  In addition the zil_rollback_destroy()
prototype was removed because the implementation of this function
was removed long ago.

Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2892

include/sys/zil.h

@@ -459,7 +459,6 @@ extern void	zil_replay(objset_t *os, void *arg,
 extern boolean_t zil_replaying(zilog_t *zilog, dmu_tx_t *tx);
 extern void	zil_destroy(zilog_t *zilog, boolean_t keep_first);
 extern void	zil_destroy_sync(zilog_t *zilog, dmu_tx_t *tx);
-extern void	zil_rollback_destroy(zilog_t *zilog, dmu_tx_t *tx);
 
 extern itx_t	*zil_itx_create(uint64_t txtype, size_t lrsize);
 extern void	zil_itx_destroy(itx_t *itx);

module/zfs/arc.c

@@ -5660,6 +5660,8 @@ l2arc_stop(void)
 }
 
 #if defined(_KERNEL) && defined(HAVE_SPL)
+EXPORT_SYMBOL(arc_buf_size);
+EXPORT_SYMBOL(arc_write);
 EXPORT_SYMBOL(arc_read);
 EXPORT_SYMBOL(arc_buf_remove_ref);
 EXPORT_SYMBOL(arc_buf_info);

module/zfs/dbuf.c

@@ -2996,4 +2996,5 @@ EXPORT_SYMBOL(dmu_buf_set_user_ie);
 EXPORT_SYMBOL(dmu_buf_update_user);
 EXPORT_SYMBOL(dmu_buf_get_user);
 EXPORT_SYMBOL(dmu_buf_freeable);
+EXPORT_SYMBOL(dmu_buf_get_blkptr);
 #endif

module/zfs/zil.c

@@ -2252,6 +2252,30 @@ zil_vdev_offline(const char *osname, void *arg)
 }
 
 #if defined(_KERNEL) && defined(HAVE_SPL)
+EXPORT_SYMBOL(zil_alloc);
+EXPORT_SYMBOL(zil_free);
+EXPORT_SYMBOL(zil_open);
+EXPORT_SYMBOL(zil_close);
+EXPORT_SYMBOL(zil_replay);
+EXPORT_SYMBOL(zil_replaying);
+EXPORT_SYMBOL(zil_destroy);
+EXPORT_SYMBOL(zil_destroy_sync);
+EXPORT_SYMBOL(zil_itx_create);
+EXPORT_SYMBOL(zil_itx_destroy);
+EXPORT_SYMBOL(zil_itx_assign);
+EXPORT_SYMBOL(zil_commit);
+EXPORT_SYMBOL(zil_vdev_offline);
+EXPORT_SYMBOL(zil_claim);
+EXPORT_SYMBOL(zil_check_log_chain);
+EXPORT_SYMBOL(zil_sync);
+EXPORT_SYMBOL(zil_clean);
+EXPORT_SYMBOL(zil_suspend);
+EXPORT_SYMBOL(zil_resume);
+EXPORT_SYMBOL(zil_add_block);
+EXPORT_SYMBOL(zil_bp_tree_add);
+EXPORT_SYMBOL(zil_set_sync);
+EXPORT_SYMBOL(zil_set_logbias);
+
 module_param(zil_replay_disable, int, 0644);
 MODULE_PARM_DESC(zil_replay_disable, "Disable intent logging replay");