On Thu, Aug 31, 2023 at 07:31:54AM +0200, Christoph Hellwig wrote: > sb->s_fs_info can only be safely freed after generic_shutdown_super was > called and all access to the super_block has stopped. > > Thus only free the private data after calling kill_litter_super, which > calls generic_shutdown_super internally. Take a look at what ramfs uses that thing for. Remount and ->show_options(). Neither is an issue in ->kill_sb(). I don't really hate that patch, but commit message is flat-out incorrect in this case.
