*/
/*
- * Copyright (c) 2012 by Delphix. All rights reserved.
+ * Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
*/
struct zfeature_info;
+typedef enum spa_feature {
+ SPA_FEATURE_NONE = -1,
+ SPA_FEATURE_ASYNC_DESTROY,
+ SPA_FEATURE_EMPTY_BPOBJ,
+ SPA_FEATURE_LZ4_COMPRESS,
+ SPA_FEATURE_SPACEMAP_HISTOGRAM,
+ SPA_FEATURE_ENABLED_TXG,
+ SPA_FEATURE_HOLE_BIRTH,
+ SPA_FEATURE_EXTENSIBLE_DATASET,
+ SPA_FEATURE_EMBEDDED_DATA,
+ SPA_FEATURE_BOOKMARKS,
+ SPA_FEATURES
+} spa_feature_t;
+
+#define SPA_FEATURE_DISABLED (-1ULL)
+
typedef struct zfeature_info {
+ spa_feature_t fi_feature;
const char *fi_uname; /* User-facing feature name */
const char *fi_guid; /* On-disk feature identifier */
const char *fi_desc; /* Feature description */
boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */
boolean_t fi_mos; /* Is the feature necessary to read the MOS? */
- struct zfeature_info **fi_depends; /* array; null terminated */
+ /* Activate this feature at the same time it is enabled */
+ boolean_t fi_activate_on_enable;
+ /* array of dependencies, terminated by SPA_FEATURE_NONE */
+ const spa_feature_t *fi_depends;
} zfeature_info_t;
-typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg);
+typedef int (zfeature_func_t)(zfeature_info_t *, void *);
#define ZFS_FEATURE_DEBUG
-typedef enum spa_feature {
- SPA_FEATURE_ASYNC_DESTROY,
- SPA_FEATURE_EMPTY_BPOBJ,
- SPA_FEATURE_LZ4_COMPRESS,
- SPA_FEATURES
-} spa_feature_t;
-
extern zfeature_info_t spa_feature_table[SPA_FEATURES];
extern boolean_t zfeature_is_valid_guid(const char *);
extern boolean_t zfeature_is_supported(const char *);
-extern int zfeature_lookup_guid(const char *, zfeature_info_t **res);
-extern int zfeature_lookup_name(const char *, zfeature_info_t **res);
+extern int zfeature_lookup_name(const char *, spa_feature_t *);
+extern boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t);
extern void zpool_feature_init(void);