Illumos #3964 L2ARC should always compress metadata buffers

[zfs.git] / include / sys / dbuf.h

diff --git a/include/sys/dbuf.h b/include/sys/dbuf.h
index ef93eb5..394fdfb 100644 (file)
--- a/include/sys/dbuf.h
+++ b/include/sys/dbuf.h
@@ -20,6 +20,7 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  */
 
 #ifndef        _SYS_DBUF_H
@@ -322,6 +323,10 @@ boolean_t dbuf_is_metadata(dmu_buf_impl_t *db);
        (DBUF_IS_METADATA(_db) &&                                       \
        ((_db)->db_objset->os_secondary_cache == ZFS_CACHE_METADATA)))
 
+#define        DBUF_IS_L2COMPRESSIBLE(_db)                                     \
+       ((_db)->db_objset->os_compress != ZIO_COMPRESS_OFF ||           \
+       (dbuf_is_metadata(_db) && zfs_mdcomp_disable == B_FALSE))
+
 #ifdef ZFS_DEBUG
 
 /*