diff options
Diffstat (limited to 'utils.c')
| -rw-r--r-- | utils.c | 37 |
1 files changed, 32 insertions, 5 deletions
@@ -1450,20 +1450,43 @@ out: return ret; } +/* + * Feature stability status and versions: compat <= safe <= default + */ static const struct btrfs_fs_feature { const char *name; u64 flag; + /* + * Compatibility with kernel of given version. Filesystem can be + * mounted. + */ + const char *compat_ver; + /* + * Considered safe for use, but is not on by default, even if the + * kernel supports the feature. + */ + const char *safe_ver; + /* + * Considered safe for use and will be turned on by default if + * supported by the running kernel. + */ + const char *default_ver; const char *desc; } mkfs_features[] = { { "mixed-bg", BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS, + "2.6.37", "2.6.37", NULL, "mixed data and metadata block groups" }, { "extref", BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF, + "3.7", "3.12", "3.12", "increased hardlink limit per file to 65536" }, { "raid56", BTRFS_FEATURE_INCOMPAT_RAID56, + "3.9", NULL, NULL, "raid56 extended format" }, { "skinny-metadata", BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA, + "3.10", "3.18", "3.18", "reduced-size metadata extent refs" }, { "no-holes", BTRFS_FEATURE_INCOMPAT_NO_HOLES, + "3.14", "4.0", NULL, "no explicit hole extents for files" }, /* Keep this one last */ { "list-all", BTRFS_FEATURE_LIST_ALL, NULL } @@ -1523,14 +1546,18 @@ void btrfs_list_all_fs_features(u64 mask_disallowed) fprintf(stderr, "Filesystem features available:\n"); for (i = 0; i < ARRAY_SIZE(mkfs_features) - 1; i++) { const struct btrfs_fs_feature *feat = &mkfs_features[i]; - char *is_default = ""; if (feat->flag & mask_disallowed) continue; - if (feat->flag & BTRFS_MKFS_DEFAULT_FEATURES) - is_default = ", default"; - fprintf(stderr, "%-20s- %s (0x%llx%s)\n", feat->name, - feat->desc, feat->flag, is_default); + fprintf(stderr, "%-20s- %s (0x%llx", feat->name, feat->desc, + feat->flag); + if (feat->compat_ver) + fprintf(stderr, ", compat=%s", feat->compat_ver); + if (feat->safe_ver) + fprintf(stderr, ", safe=%s", feat->safe_ver); + if (feat->default_ver) + fprintf(stderr, ", default=%s", feat->default_ver); + fprintf(stderr, ")\n"); } } |