This is v6 of a proposed patch set for fixing file ID collisions with 9pfs.
v5->v6: * Rebased to https://github.com/gkurz/qemu/commits/9p-next (SHA1 177fd3b6a8). * Replaced previous boolean option 'remap_inodes' by tertiary option 'multidevs=remap|forbid|warn', where 'warn' is the new/old default behaviour for not breaking existing installations: https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg07098.html * Dropped incomplete fix in v9fs_do_readdir() which aimed to prevent exposing info outside export root with '..' entry. Postponed this fix for now for the reasons described: https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg01862.html Christian Schoenebeck (4): 9p: Treat multiple devices on one export as an error 9p: Added virtfs option 'multidevs=remap|forbid|warn' 9p: stat_to_qid: implement slow path 9p: Use variable length suffixes for inode remapping fsdev/file-op-9p.h | 5 + fsdev/qemu-fsdev-opts.c | 7 +- fsdev/qemu-fsdev.c | 11 ++ hw/9pfs/9p.c | 488 +++++++++++++++++++++++++++++++++++++++++++++--- hw/9pfs/9p.h | 51 +++++ qemu-options.hx | 33 +++- vl.c | 6 +- 7 files changed, 565 insertions(+), 36 deletions(-) -- 2.11.0
