Hyunchul, Am 26.05.2017 um 01:30 schrieb Hyunchul Lee: > From: Hyunchul Lee <cheol.lee@xxxxxxx> > > for un/freeze support, implement freeze_super and un/freeze_fs > of super_operations. > ubifs_freeze_super just calls freeze_super. because freeze_super always > succeeds if file system is read-only, UBIFS errors should be checked. > if there are errors, UBIFS is switched to read-only mode. > ubifs_freeze_fs runs commit if TNC/LPT isn't clean. though all writes > are blocked and sync_fs is called before, if commit alreay was started > before writes are blocked, TNC/LPT might have dirty COW nodes. you explain how you implement that feature, but not why. What is the use-case? I always thought this interface is only being used by LVM. Thanks, //richard
