linux/fs/ceph, branch v6.7

Merge tag 'ceph-for-6.7-rc1' of https://github.com/ceph/ceph-client

2023-11-10T17:52:56Z

Pull ceph updates from Ilya Dryomov: - support for idmapped mounts in CephFS (Christian Brauner, Alexander Mikhalitsyn). The series was originally developed by Christian and later picked up and brought over the finish line by Alexander, who also contributed an enabler on the MDS side (separate owner_{u,g}id fields on the wire). The required exports for mnt_idmap_{get,put}() in VFS have been acked by Christian and received no objection from Christoph. - a churny change in CephFS logging to include cluster and client identifiers in log and debug messages (Xiubo Li). This would help in scenarios with dozens of CephFS mounts on the same node which are getting increasingly common, especially in the Kubernetes world. * tag 'ceph-for-6.7-rc1' of https://github.com/ceph/ceph-client: ceph: allow idmapped mounts ceph: allow idmapped atomic_open inode op ceph: allow idmapped set_acl inode op ceph: allow idmapped setattr inode op ceph: pass idmap to __ceph_setattr ceph: allow idmapped permission inode op ceph: allow idmapped getattr inode op ceph: pass an idmapping to mknod/symlink/mkdir ceph: add enable_unsafe_idmap module parameter ceph: handle idmapped mounts in create_request_message() ceph: stash idmapping in mdsc request fs: export mnt_idmap_get/mnt_idmap_put libceph, ceph: move mdsmap.h to fs/ceph ceph: print cluster fsid and client global_id in all debug logs ceph: rename _to_client() to _to_fs_client() ceph: pass the mdsc to several helpers libceph: add doutc and *_client debug macros support

ceph: allow idmapped mounts

2023-11-03T22:28:34Z

Now that we converted cephfs internally to account for idmapped mounts allow the creation of idmapped mounts on by setting the FS_ALLOW_IDMAP flag. Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: allow idmapped atomic_open inode op

2023-11-03T22:28:34Z

Enable ceph_atomic_open() to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. [ aleksandr.mikhalitsyn: adapted to 5fadbd9929 ("ceph: rely on vfs for setgid stripping") ] Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: allow idmapped set_acl inode op

2023-11-03T22:28:34Z

Enable ceph_set_acl() to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: allow idmapped setattr inode op

2023-11-03T22:28:34Z

Enable __ceph_setattr() to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. [ aleksandr.mikhalitsyn: adapted to b27c82e12965 ("attr: port attribute changes to new types") ] Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: pass idmap to __ceph_setattr

2023-11-03T22:28:34Z

Just pass down the mount's idmapping to __ceph_setattr, because we will need it later. Signed-off-by: Alexander Mikhalitsyn Acked-by: Christian Brauner Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: allow idmapped permission inode op

2023-11-03T22:28:34Z

Enable ceph_permission() to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: allow idmapped getattr inode op

2023-11-03T22:28:34Z

Enable ceph_getattr() to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: pass an idmapping to mknod/symlink/mkdir

2023-11-03T22:28:34Z

Enable mknod/symlink/mkdir iops to handle idmapped mounts. This is just a matter of passing down the mount's idmapping. Signed-off-by: Christian Brauner Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: add enable_unsafe_idmap module parameter

2023-11-03T22:28:33Z

This parameter is used to decide if we allow to perform IO on idmapped mount in case when MDS lacks support of CEPHFS_FEATURE_HAS_OWNER_UIDGID feature. In this case we can't properly handle MDS permission checks and if UID/GID-based restrictions are enabled on the MDS side then IO requests which go through an idmapped mount may fail with -EACCESS/-EPERM. Fortunately, for most of users it's not a case and everything should work fine. But we put work "unsafe" in the module parameter name to warn users about possible problems with this feature and encourage update of cephfs MDS. Suggested-by: Stéphane Graber Signed-off-by: Alexander Mikhalitsyn Acked-by: Christian Brauner Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov