Hi Christoph, On Tue, Nov 22, 2022 at 04:37:08AM -0800, Christoph Hellwig wrote: > On Sat, Nov 19, 2022 at 04:03:11PM +0000, Daniel Golle wrote: > > [...] > > Yet another (imho not terrible) problem is removal of the lower device. > > Many of the supported SBC use a micro SD card to boot, which can be > > removed by the user while the system is running (which is generally not > > a good idea, but anyway). For partitions this is handled automatically > > by blk_drop_partitions() called directly from genhd.c. > > I'm currently playing with doing something similar using the bus device > > removal notification, but it doesn't seem to work for all cases, e.g. > > mmcblk device do not seem to have the ->bus pointer populated at all > > (ie. disk_to_dev(disk)->bus == NULL for mmcblk devices). > > I have WIP patches that allow the claimer of a block device get > resize and removal notification. It's not going to land for 6.2, > but I hope I have it ready in time for the next merge window. Any news about that patchset? I'd happily review, test and use it ;)
