diff options
Diffstat (limited to 'module/zfs/zfeature_common.c')
| -rw-r--r-- | module/zfs/zfeature_common.c | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/module/zfs/zfeature_common.c b/module/zfs/zfeature_common.c index 5bcc08ade..35e662ee2 100644 --- a/module/zfs/zfeature_common.c +++ b/module/zfs/zfeature_common.c @@ -119,10 +119,22 @@ zfeature_lookup_name(const char *name, spa_feature_t *res) return (ENOENT); } +boolean_t +zfeature_depends_on(spa_feature_t fid, spa_feature_t check) { + zfeature_info_t *feature = &spa_feature_table[fid]; + int i; + + for (i = 0; feature->fi_depends[i] != SPA_FEATURE_NONE; i++) { + if (feature->fi_depends[i] == check) + return (B_TRUE); + } + return (B_FALSE); +} + static void zfeature_register(spa_feature_t fid, const char *guid, const char *name, const char *desc, boolean_t readonly, boolean_t mos, - const spa_feature_t *deps) + boolean_t activate_on_enable, const spa_feature_t *deps) { zfeature_info_t *feature = &spa_feature_table[fid]; static spa_feature_t nodeps[] = { SPA_FEATURE_NONE }; @@ -142,6 +154,7 @@ zfeature_register(spa_feature_t fid, const char *guid, const char *name, feature->fi_desc = desc; feature->fi_can_readonly = readonly; feature->fi_mos = mos; + feature->fi_activate_on_enable = activate_on_enable; feature->fi_depends = deps; } @@ -150,18 +163,40 @@ zpool_feature_init(void) { zfeature_register(SPA_FEATURE_ASYNC_DESTROY, "com.delphix:async_destroy", "async_destroy", - "Destroy filesystems asynchronously.", B_TRUE, B_FALSE, NULL); + "Destroy filesystems asynchronously.", B_TRUE, B_FALSE, + B_FALSE, NULL); + zfeature_register(SPA_FEATURE_EMPTY_BPOBJ, "com.delphix:empty_bpobj", "empty_bpobj", - "Snapshots use less space.", B_TRUE, B_FALSE, NULL); + "Snapshots use less space.", B_TRUE, B_FALSE, + B_FALSE, NULL); + zfeature_register(SPA_FEATURE_LZ4_COMPRESS, "org.illumos:lz4_compress", "lz4_compress", - "LZ4 compression algorithm support.", B_FALSE, B_FALSE, NULL); + "LZ4 compression algorithm support.", B_FALSE, B_FALSE, + B_FALSE, NULL); + zfeature_register(SPA_FEATURE_SPACEMAP_HISTOGRAM, "com.delphix:spacemap_histogram", "spacemap_histogram", - "Spacemaps maintain space histograms.", B_TRUE, B_FALSE, NULL); + "Spacemaps maintain space histograms.", B_TRUE, B_FALSE, + B_FALSE, NULL); + + zfeature_register(SPA_FEATURE_ENABLED_TXG, + "com.delphix:enabled_txg", "enabled_txg", + "Record txg at which a feature is enabled", B_TRUE, B_FALSE, + B_FALSE, NULL); + + { + static spa_feature_t hole_birth_deps[] = { SPA_FEATURE_ENABLED_TXG, + SPA_FEATURE_NONE }; + zfeature_register(SPA_FEATURE_HOLE_BIRTH, + "com.delphix:hole_birth", "hole_birth", + "Retain hole birth txg for more precise zfs send", + B_FALSE, B_TRUE, B_TRUE, hole_birth_deps); + } + zfeature_register(SPA_FEATURE_EXTENSIBLE_DATASET, "com.delphix:extensible_dataset", "extensible_dataset", "Enhanced dataset functionality, used by other features.", - B_FALSE, B_FALSE, NULL); + B_FALSE, B_FALSE, B_FALSE, NULL); } |