btrfs-progs: common: allow users to select extent-tree-v2 option
We want to enable developers to test the extent tree v2 features as they are added, add the ability to mkfs an extent tree v2 fs if we have experimental enabled. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -131,6 +131,17 @@ static const struct btrfs_feature mkfs_features[] = {
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VERSION_NULL(default),
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.desc = "support zoned devices"
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},
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#endif
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#if EXPERIMENTAL
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{
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.name = "extent-tree-v2",
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.flag = BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2,
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.sysfs_name = "extent_tree_v2",
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VERSION_TO_STRING2(compat, 5,15),
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VERSION_NULL(safe),
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VERSION_NULL(default),
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.desc = "new extent tree format"
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},
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#endif
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/* Keep this one last */
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{
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@ -513,6 +513,23 @@ BUILD_ASSERT(sizeof(struct btrfs_super_block) == BTRFS_SUPER_INFO_SIZE);
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(BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE | \
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BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID)
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#if EXPERIMENTAL
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#define BTRFS_FEATURE_INCOMPAT_SUPP \
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(BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
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BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \
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BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO | \
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BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD | \
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BTRFS_FEATURE_INCOMPAT_BIG_METADATA | \
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BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF | \
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BTRFS_FEATURE_INCOMPAT_RAID56 | \
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BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS | \
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BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \
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BTRFS_FEATURE_INCOMPAT_NO_HOLES | \
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BTRFS_FEATURE_INCOMPAT_RAID1C34 | \
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BTRFS_FEATURE_INCOMPAT_METADATA_UUID | \
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BTRFS_FEATURE_INCOMPAT_ZONED | \
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BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2)
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#else
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#define BTRFS_FEATURE_INCOMPAT_SUPP \
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(BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
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BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \
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@ -527,6 +544,7 @@ BUILD_ASSERT(sizeof(struct btrfs_super_block) == BTRFS_SUPER_INFO_SIZE);
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BTRFS_FEATURE_INCOMPAT_RAID1C34 | \
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BTRFS_FEATURE_INCOMPAT_METADATA_UUID | \
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BTRFS_FEATURE_INCOMPAT_ZONED)
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#endif
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/*
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* A leaf is full of items. offset and size tell us where to find
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@ -1223,6 +1223,12 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
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features |= BTRFS_FEATURE_INCOMPAT_RAID1C34;
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}
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/* Extent tree v2 comes with a set of mandatory features. */
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if (features & BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2) {
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features |= BTRFS_FEATURE_INCOMPAT_NO_HOLES;
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runtime_features |= BTRFS_RUNTIME_FEATURE_FREE_SPACE_TREE;
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}
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if (zoned) {
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if (source_dir_set) {
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error("the option -r and zoned mode are incompatible");
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