When populating system keyspace the sstable_directory forgets to create upload/ subdir in the tables' datadir because of the way it's invoked from distributed loader. For non-system keyspaces directories are created in table::init_storage() which is self-contained and just creates the whole layout regardless of what.
This PR makes system keyspace's tables use table::init_storage() as well so that the datadir layout is the same for all on-disk tables.
Test included.
fixes: #15708closes: scylladb/scylla-manager#3603Closesscylladb/scylladb#15723
* github.com:scylladb/scylladb:
test: Add test for datadir/ layout
sstable_directory: Indentation fix after previous patch
db,sstables: Move storage init for system keyspace to table creation
(cherry picked from commit 7f81957437)
fa0f382a82