Here are some patches to make a number of improvements to the AFS dynamic
root:
(1) Create an /afs/.<cell> mountpoint to match the /afs/<cell> mountpoint
when a cell is created.
(2) Add some more checks on cell names proposed by the user to prevent
dodgy symlink bodies from being created. Also prevent rootcell from
being altered once set to simplify the locking.
(3) Change the handling of /afs/@cell from being a dentry name
substitution at lookup time to making it a symlink to the current cell
name and also provide a /afs/.@cell symlink to point to the dotted
cell mountpoint.
The patches are here:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=afs-next
Thanks,
David
Changes
=======
ver #2)
- Add more checks on the cell names.
- Prevent the rootcell from being altered once set.
- Directly create the @cell symlinks rather than going through lookup.
Link: https://lore.kernel.org/r/20250107142513.527300-1-dhowells@xxxxxxxxxx/ # v1
David Howells (3):
afs: Make /afs/.<cell> as well as /afs/<cell> mountpoints
afs: Add rootcell checks
afs: Make /afs/@cell and /afs/.@cell symlinks
fs/afs/cell.c | 21 +++-
fs/afs/dynroot.c | 227 ++++++++++++++++++++++++++-----------
fs/afs/proc.c | 8 +-
include/trace/events/afs.h | 2 +
4 files changed, 186 insertions(+), 72 deletions(-)
