Reference zfeature.c in a SPA_VERSION comment

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #8626

diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h
index 9434761308f28a3d4cc2a216076798770cb932d5..8a532ec7ed3c3b3b65684014db925e6ac7e1c886 100644 (file)
--- a/include/sys/fs/zfs.h
+++ b/include/sys/fs/zfs.h
@@ -488,6 +488,10 @@ typedef enum zfs_key_location {
 #define        SPA_VERSION_28                  28ULL
 #define        SPA_VERSION_5000                5000ULL
 
+/*
+ * The incrementing pool version number has been replaced by pool feature
+ * flags.  For more details, see zfeature.c.
+ */
 #define        SPA_VERSION                     SPA_VERSION_5000
 #define        SPA_VERSION_STRING              "5000"