RepoMirrors/btrfs-progs
1
0
Fork 0
mirror of https://github.com/kdave/btrfs-progs synced 2024-12-25 15:42:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

btrfs-progs: mkfs: add short aliases for long feature names

Browse Source 
While we like to have the descriptive names also add short aliases that
we also use for reference in changelogs and documentation.

  $ mkfs.btrfs -O list-all
  Filesystem features available:
  mixed-bg            - mixed data and metadata block groups (compat=2.6.37, safe=2.6.37)
  quota               - quota support (qgroups) (compat=3.4)
  extref              - increased hardlink limit per file to 65536 (compat=3.7, safe=3.12, default=3.12)
  raid56              - raid56 extended format (compat=3.9)
  skinny-metadata     - reduced-size metadata extent refs (compat=3.10, safe=3.18, default=3.18)
  no-holes            - no explicit hole extents for files (compat=3.14, safe=4.0, default=5.15)
  fst                 - free-space-tree alias
  free-space-tree     - free space tree (space_cache=v2) (compat=4.5, safe=4.9, default=5.15)
  raid1c34            - RAID1 with 3 or 4 copies (compat=5.5)
  zoned               - support zoned devices (compat=5.12)
  extent-tree-v2      - new extent tree format (compat=5.15)
  bgt                 - block-group-tree alias
  block-group-tree    - block group tree to reduce mount time (compat=6.1)
  rst                 - raid-stripe-tree alias
  raid-stripe-tree    - raid stripe tree (compat=6.7)
  squota              - squota support (simple accounting qgroups) (compat=6.7)

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2023-10-10 19:39:46 +02:00
parent 723137547b
commit 166db10ceb
1 changed files with 47 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
common/fsfeatures.c
View File

@ -47,6 +47,17 @@
.name ## _str = NULL, \
.name ## _ver = 0
/*
* For feature names that are only an alias we don't need to duplicate
* versions.
*
* When compat_str is NULL, the feature descriptor is an alias.
*/
#define VERSION_ALIAS \
VERSION_NULL(compat), \
VERSION_NULL(safe), \
VERSION_NULL(default)
enum feature_source {
FS_FEATURES,
RUNTIME_FEATURES,
@ -145,6 +156,14 @@ static const struct btrfs_feature mkfs_features[] = {
VERSION_TO_STRING2(default, 5,15),
.desc = "no explicit hole extents for files"
},
{
.name = "fst",
.compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID,
.sysfs_name = "free_space_tree",
VERSION_ALIAS,
.desc = "free-space-tree alias"
},
{
.name = "free-space-tree",
.compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
@ -186,6 +205,13 @@ static const struct btrfs_feature mkfs_features[] = {
.desc = "new extent tree format"
},
#endif
{
.name = "bgt",
.compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_BLOCK_GROUP_TREE,
.sysfs_name = "block_group_tree",
VERSION_ALIAS,
.desc = "block-group-tree alias"
},
{
.name = "block-group-tree",
.compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_BLOCK_GROUP_TREE,
@ -196,6 +222,13 @@ static const struct btrfs_feature mkfs_features[] = {
.desc = "block group tree to reduce mount time"
},
#if EXPERIMENTAL
{
.name = "rst",
.incompat_flag = BTRFS_FEATURE_INCOMPAT_RAID_STRIPE_TREE,
.sysfs_name = NULL,
VERSION_ALIAS,
.desc = "raid-stripe-tree alias"
},
{
.name = "raid-stripe-tree",
.incompat_flag = BTRFS_FEATURE_INCOMPAT_RAID_STRIPE_TREE,
@ -258,6 +291,11 @@ static const struct btrfs_feature runtime_features[] = {
}
};
static bool feature_name_is_alias(const struct btrfs_feature *feature)
{
return feature->compat_str == NULL;
}
/*
* This is a sanity check to make sure BTRFS_FEATURE_STRING_BUF_SIZE is large
* enough to contain all strings.
@ -341,6 +379,9 @@ static void parse_features_to_string(char *buf,
for (i = 0; i < array_size; i++) {
const struct btrfs_feature *feat = get_feature(i, source);
if (feature_name_is_alias(feat))
continue;
if (features->compat_ro_flags & feat->compat_ro_flag ||
features->incompat_flags & feat->incompat_flag ||
features->runtime_flags & feat->runtime_flag) {
@ -418,7 +459,12 @@ static void list_all_features(const struct btrfs_mkfs_features *allowed,
feat->runtime_flag & allowed->runtime_flags))
continue;
fprintf(stderr, "%-20s- %s (", feat->name, feat->desc);
fprintf(stderr, "%-20s- %s", feat->name, feat->desc);
if (feature_name_is_alias(feat)) {
fprintf(stderr, "\n");
continue;
}
fprintf(stderr, " (");
if (feat->compat_ver) {
fprintf(stderr, "compat=%s", feat->compat_str);
sep = ", ";