[PATCH 0/7] Detect partition changes at runtime

[Sascha Hauer <s.hauer@pengutronix.de>]

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.

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(-)

-- 
2.39.2