Jeff Layton c380062d08 ceph: properly handle statfs on multifs setups ... [ Upstream commit 8cfc0c7ed34f7929ce7e5d7c6eecf4d01ba89a84 ] ceph_statfs currently stuffs the cluster fsid into the f_fsid field. This was fine when we only had a single filesystem per cluster, but now that we have multiples we need to use something that will vary between them. Change ceph_statfs to xor each 32-bit chunk of the fsid (aka cluster id) into the lower bits of the statfs->f_fsid. Change the lower bits to hold the fscid (filesystem ID within the cluster). That should give us a value that is guaranteed to be unique between filesystems within a cluster, and should minimize the chance of collisions between mounts of different clusters. URL: https://tracker.ceph.com/issues/52812 Reported-by: Sachin Prabhu <sprabhu@redhat.com> 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>		2021-12-01 09:19:08 +01:00
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acl.c
addr.c	ceph: remove bogus checks and WARN_ONs from ceph_set_page_dirty	2021-07-20 16:05:48 +02:00
cache.c
cache.h
caps.c	ceph: fix handling of "meta" errors	2021-10-27 09:56:51 +02:00
ceph_frag.c
debugfs.c	ceph: metrics for opened files, pinned caps and opened inodes	2020-10-12 15:29:26 +02:00
dir.c	ceph: allow ceph_put_mds_session to take NULL or ERR_PTR	2021-09-26 14:08:58 +02:00
export.c	ceph: don't allow access to MDS-private inodes	2021-05-22 11:40:54 +02:00
file.c	ceph: fix handling of "meta" errors	2021-10-27 09:56:51 +02:00
inode.c	ceph: fix handling of "meta" errors	2021-10-27 09:56:51 +02:00
io.c
io.h
ioctl.c
ioctl.h
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
mds_client.c	ceph: fix handling of "meta" errors	2021-10-27 09:56:51 +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: fix possible null-pointer dereference in ceph_mdsmap_decode()	2021-09-08 08:49:01 +02:00
metric.c	ceph: cancel delayed work instead of flushing on mdsc teardown	2021-09-26 14:08:58 +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: correctly handle releasing an embedded cap flush	2021-09-03 10:09:22 +02:00
strings.c
super.c	ceph: properly handle statfs on multifs setups	2021-12-01 09:19:08 +01:00
super.h	ceph: fix handling of "meta" errors	2021-10-27 09:56:51 +02:00
util.c
xattr.c	ceph: mark ceph_fmt_xattr() as printf-like for better type checking	2020-10-12 15:29:27 +02:00