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Btrfs-progs: bugfix for subvolume parent determination in btrfs send 

We missed to add the default subvolume, because it has no ROOT_BACKREF_ITEM.
This made get_parent always fail for direct decendants of the default
subvolume, resulting in lots of full streams where incremental streams were
requested.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Reviewed-by: Alexander Block <ablock84@googlemail.com>
This commit is contained in:
Jan Schmidt 2012-11-06 21:47:08 +01:00 committed by David Sterba
parent cc088694ff
commit db1b7f93b4
1 changed files with 2 additions and 2 deletions
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4
send-utils.c
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@ -240,7 +240,8 @@ int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s)
memcpy(&root_item, root_item_ptr,
sizeof(root_item));
root_item_valid = 1;
} else if (sh->type == BTRFS_ROOT_BACKREF_KEY) {
} else if (sh->type == BTRFS_ROOT_BACKREF_KEY ||
root_item_valid) {
if (!root_item_valid)
goto skip;
@ -274,7 +275,6 @@ int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s)
subvol_uuid_search_add(s, si);
root_item_valid = 0;
} else {
root_item_valid = 0;
goto skip;
}