AuxXxilium/linux_dsm_epyc7002
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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 ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
addr.c ceph: promote to unsigned long long before shifting 2020-10-12 15:29:27 +02:00
cache.c ceph: replace zero-length array with flexible-array member 2020-03-30 12:42:40 +02:00
cache.h libceph, rbd, ceph: convert to use the new mount API 2019-11-27 22:28:37 +01:00
caps.c ceph: fix fscache invalidation 2021-05-22 11:40:53 +02:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c ceph: metrics for opened files, pinned caps and opened inodes 2020-10-12 15:29:26 +02:00
dir.c ceph: add ceph_sb_to_mdsc helper support to parse the mdsc 2020-10-12 15:29:26 +02:00
export.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
file.c libceph, rbd, ceph: "blacklist" -> "blocklist" 2020-10-12 15:29:26 +02:00
inode.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
io.c ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
io.h ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
ioctl.c ceph: consider inode's last read/write when calculating wanted caps 2020-03-30 12:42:42 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig libceph: replace HTTP links with HTTPS ones 2020-08-03 11:05:26 +02:00
locks.c ceph: add ceph_sb_to_mdsc helper support to parse the mdsc 2020-10-12 15:29:26 +02:00
Makefile ceph: add dentry lease metric support 2020-06-01 13:22:51 +02:00
mds_client.c ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
mds_client.h ceph: check session state after bumping session->s_seq 2020-11-04 20:55:49 +01:00
mdsmap.c ceph: downgrade warning from mdsmap decode to debug 2021-02-26 10:13:00 +01:00
metric.c ceph: metrics for opened files, pinned caps and opened inodes 2020-10-12 15:29:26 +02:00
metric.h ceph: metrics for opened files, pinned caps and opened inodes 2020-10-12 15:29:26 +02:00
quota.c ceph: check session state after bumping session->s_seq 2020-11-04 20:55:49 +01:00
snap.c ceph: check session state after bumping session->s_seq 2020-11-04 20:55:49 +01:00
strings.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
super.h ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
util.c ceph: move net/ceph/ceph_fs.c to fs/ceph/util.c 2020-01-27 16:53:40 +01:00
xattr.c ceph: mark ceph_fmt_xattr() as printf-like for better type checking 2020-10-12 15:29:27 +02:00