Hello Sascha, On 15.02.24 08:47, Sascha Hauer wrote: > With this series barebox can detect partition table changes at runtime > and reparse the partition table in that case. With this it's possible > for example to write an image to a SD card and mount partitions directly > afterwards without restarting barebox. That's cool! How much extra effort do you think would it be to support plug-and-play of SD-Cards? CONFIG_MCI_POLLER or something would poll card detect and if it disappears: deregister all partitions and if it appears and probing is enabled for the device (or it was previously probed), reinit the card and re-enable the partition table. That would be a nice stress test for the new functionality :-) Cheers, Ahmad > > The fastboot code is also changed to check for existing partitions when > they are actually used and no longer during initialization time of the > gadget. With this it becomes possible to expose a full device via > fastboot and also some not yet existing partitions. When the full device > is written to one can then write to a (newly created) partition directly > afterwards. > > The reparsing of the partition table only works when none of the > partitions are mounted or otherwise opened. When a partition is open > when the partition table changes, then barebox will continue with > the old partition table just like Linux does. > > Sascha > > Sascha Hauer (7): > fs: move cdev open count to cdev_open()/cdev_close() > common: partitions: efi: fix memory leak > partition: allow to reparse a partition table > block: reparse partition table when necessary > fastboot: pass list to fb_addvar() > fastboot: add function to free a list of fastboot variables > fastboot: evaluate fastboot partitions when used > > common/block.c | 30 +++++++++++++++++++-- > common/fastboot.c | 59 ++++++++++++++++++++++++++--------------- > common/partitions.c | 20 ++++++++++++++ > common/partitions/efi.c | 10 +++---- > fs/devfs-core.c | 13 +++++++-- > fs/devfs.c | 4 --- > include/block.h | 2 ++ > include/disks.h | 1 + > 8 files changed, 104 insertions(+), 35 deletions(-) > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
