kernel_optimize_test/fs/ceph
Jeff Layton 3611ce2f23 ceph: don't allow access to MDS-private inodes
[ Upstream commit d4f6b31d721779d91b5e2f8072478af73b196c34 ]

The MDS reserves a set of inodes for its own usage, and these should
never be accessible to clients. Add a new helper to vet a proposed
inode number against that range, and complain loudly and refuse to
create or look it up if it's in it.

Also, ensure that the MDS doesn't try to delegate inodes that are in
that range or lower. Print a warning if it does, and don't save the
range in the xarray.

URL: https://tracker.ceph.com/issues/49922
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-22 11:40:54 +02:00
..
acl.c
addr.c
cache.c
cache.h
caps.c ceph: fix fscache invalidation 2021-05-22 11:40:53 +02:00
ceph_frag.c
debugfs.c
dir.c
export.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
file.c
inode.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
io.c
io.h
ioctl.c
ioctl.h
Kconfig
locks.c
Makefile
mds_client.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
mds_client.h
mdsmap.c ceph: downgrade warning from mdsmap decode to debug 2021-02-26 10:13:00 +01:00
metric.c
metric.h
quota.c
snap.c
strings.c
super.c
super.h ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
util.c
xattr.c