19de128635
Add jbd2_journal_init_global() which initializes the JBD2 journal subsystem caches. This wraps the existing journal_init() with a static guard to ensure it's only called once. Call this from ext4l_probe() when CONFIG_EXT4_JOURNAL is enabled to initialize the journal subsystem before any journal operations. Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>