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authorBrian Behlendorf <[email protected]>2010-08-26 14:24:34 -0700
committerBrian Behlendorf <[email protected]>2010-08-26 14:24:34 -0700
commit572e285762521df27fe5b026f409ba1a21abb7ac (patch)
treef5d0e8e3bd3c0956d437251974b67d88fea46304 /module/zfs/lzjb.c
parent1980602bfae0605d3231e79627b3e25c07991b0e (diff)
Update to onnv_147
This is the last official OpenSolaris tag before the public development tree was closed.
Diffstat (limited to 'module/zfs/lzjb.c')
-rw-r--r--module/zfs/lzjb.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/module/zfs/lzjb.c b/module/zfs/lzjb.c
index 10952f472..ab3de51b7 100644
--- a/module/zfs/lzjb.c
+++ b/module/zfs/lzjb.c
@@ -20,12 +20,11 @@
*/
/*
- * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
- * We keep our own copy of this algorithm for 2 main reasons:
+ * We keep our own copy of this algorithm for 3 main reasons:
* 1. If we didn't, anyone modifying common/os/compress.c would
* directly break our on disk format
* 2. Our version of lzjb does not have a number of checks that the
@@ -33,8 +32,8 @@
* 3. We initialize the lempel to ensure deterministic results,
* so that identical blocks can always be deduplicated.
* In particular, we are adding the "feature" that compress() can
- * take a destination buffer size and return -1 if the data will not
- * compress to d_len or less.
+ * take a destination buffer size and returns the compressed length, or the
+ * source length if compression would overflow the destination buffer.
*/
#include <sys/types.h>