Fix zmod.h usage in userspace

Do not use zmod.h in userspace.

This has also been filed with the ZFS team. It makes the userspace
libzpool code use the zlib API, instead of the Solaris-only and
non-standard zmod.h.  The zlib API is almost identical and is a de
facto standard, so this is a no-brainer.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 20 insertions, 7 deletions

diff --git a/module/zfs/gzip.c b/module/zfs/gzip.c
index aa0254806..155404efd 100644
--- a/module/zfs/gzip.c
+++ b/module/zfs/gzip.c
@@ -28,22 +28,35 @@
 
 #include <sys/debug.h>
 #include <sys/types.h>
-#include <sys/zmod.h>
 
 #ifdef _KERNEL
+
 #include <sys/systm.h>
-#else
+#include <sys/zmod.h>
+
+typedef size_t zlen_t;
+#define compress_func   z_compress_level
+#define uncompress_func z_uncompress
+
+#else /* _KERNEL */
+
 #include <strings.h>
+#include <zlib.h>
+
+typedef uLongf zlen_t;
+#define compress_func   compress2
+#define uncompress_func uncompress
+
 #endif
 
 size_t
 gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 {
-	size_t dstlen = d_len;
+	zlen_t dstlen = d_len;
 
 	ASSERT(d_len <= s_len);
 
-	if (z_compress_level(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
+	if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
 		if (d_len != s_len)
 			return (s_len);
 
@@ -51,18 +64,18 @@ gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 		return (s_len);
 	}
 
-	return (dstlen);
+	return ((size_t) dstlen);
 }
 
 /*ARGSUSED*/
 int
 gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 {
-	size_t dstlen = d_len;
+	zlen_t dstlen = d_len;
 
 	ASSERT(d_len >= s_len);
 
-	if (z_uncompress(d_start, &dstlen, s_start, s_len) != Z_OK)
+	if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK)
 		return (-1);
 
 	return (0);