kernel.git/fs/ceph/xattr.c, branch linux-6.7.y

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: print cluster fsid and client global_id in all debug logs

2023-11-03T22:28:33Z

Multiple CephFS mounts on a host is increasingly common so disambiguating messages like this is necessary and will make it easier to debug issues. At the same this will improve the debug logs to make them easier to troubleshooting issues, such as print the ino# instead only printing the memory addresses of the corresponding inodes and print the dentry names instead of the corresponding memory addresses for the dentry,etc. Link: https://tracker.ceph.com/issues/61590 Signed-off-by: Xiubo Li Reviewed-by: Patrick Donnelly Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: rename _to_client() to _to_fs_client()

2023-11-03T22:28:33Z

We need to covert the inode to ceph_client in the following commit, and will add one new helper for that, here we rename the old helper to _fs_client(). Link: https://tracker.ceph.com/issues/61590 Signed-off-by: Xiubo Li Reviewed-by: Patrick Donnelly Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: move ceph_xattr_handlers to .rodata

2023-10-09T14:24:17Z

This makes it harder for accidental or malicious changes to ceph_xattr_handlers at runtime. Cc: Xiubo Li Cc: Ilya Dryomov Cc: Jeff Layton Cc: ceph-devel@vger.kernel.org Signed-off-by: Wedson Almeida Filho Link: https://lore.kernel.org/r/20230930050033.41174-7-wedsonaf@gmail.com Acked-by: Ilya Dryomov Signed-off-by: Christian Brauner

Merge tag 'ceph-for-6.6-rc1' of https://github.com/ceph/ceph-client

2023-09-06T19:10:15Z

Pull ceph updates from Ilya Dryomov: "Mixed with some fixes and cleanups, this brings in reasonably complete fscrypt support to CephFS! The list of things which don't work with encryption should be fairly short, mostly around the edges: fallocate (not supported well in CephFS to begin with), copy_file_range (requires re-encryption), non-default striping patterns. This was a multi-year effort principally by Jeff Layton with assistance from Xiubo Li, Luís Henriques and others, including several dependant changes in the MDS, netfs helper library and fscrypt framework itself" * tag 'ceph-for-6.6-rc1' of https://github.com/ceph/ceph-client: (53 commits) ceph: make num_fwd and num_retry to __u32 ceph: make members in struct ceph_mds_request_args_ext a union rbd: use list_for_each_entry() helper libceph: do not include crypto/algapi.h ceph: switch ceph_lookup/atomic_open() to use new fscrypt helper ceph: fix updating i_truncate_pagecache_size for fscrypt ceph: wait for OSD requests' callbacks to finish when unmounting ceph: drop messages from MDS when unmounting ceph: update documentation regarding snapshot naming limitations ceph: prevent snapshot creation in encrypted locked directories ceph: add support for encrypted snapshot names ceph: invalidate pages when doing direct/sync writes ceph: plumb in decryption during reads ceph: add encryption support to writepage and writepages ceph: add read/modify/write to ceph_sync_write ceph: align data in pages in ceph_sync_write ceph: don't use special DIO path for encrypted inodes ceph: add truncate size handling support for fscrypt ceph: add object version support for sync read libceph: allow ceph_osdc_new_request to accept a multi-op read ...

ceph: add fscrypt ioctls and ceph.fscrypt.auth vxattr

2023-08-22T07:01:48Z

We gate most of the ioctls on MDS feature support. The exception is the key removal and status functions that we still want to work if the MDS's were to (inexplicably) lose the feature. For the set_policy ioctl, we take Fs caps to ensure that nothing can create files in the directory while the ioctl is running. That should be enough to ensure that the "empty_dir" check is reliable. The vxattr is read-only, added mostly for future debugging purposes. Signed-off-by: Jeff Layton Reviewed-by: Xiubo Li Reviewed-and-tested-by: Luís Henriques Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: implement -o test_dummy_encryption mount option

2023-08-22T07:01:48Z

Add support for the test_dummy_encryption mount option. This allows us to test the encrypted codepaths in ceph without having to manually set keys, etc. [ lhenriques: fix potential fsc->fsc_dummy_enc_policy memory leak in ceph_real_mount() ] Signed-off-by: Jeff Layton Reviewed-by: Xiubo Li Reviewed-and-tested-by: Luís Henriques Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: convert to ctime accessor functions

2023-07-13T08:28:05Z

In later patches, we're going to change how the inode's ctime field is used. Switch to using accessor functions instead of raw accesses of inode->i_ctime. Reviewed-by: Xiubo Li Signed-off-by: Jeff Layton Reviewed-by: Jan Kara Message-Id: <20230705190309.579783-28-jlayton@kernel.org> Signed-off-by: Christian Brauner

Merge tag 'ceph-for-6.4-rc1' of https://github.com/ceph/ceph-client

2023-05-04T21:48:02Z

Pull ceph updates from Ilya Dryomov: "A few filesystem improvements, with a rather nasty use-after-free fix from Xiubo intended for stable" * tag 'ceph-for-6.4-rc1' of https://github.com/ceph/ceph-client: ceph: reorder fields in 'struct ceph_snapid_map' ceph: pass ino# instead of old_dentry if it's disconnected ceph: fix potential use-after-free bug when trimming caps ceph: implement writeback livelock avoidance using page tagging ceph: do not print the whole xattr value if it's too long

ceph: do not print the whole xattr value if it's too long

2023-04-30T10:37:28Z

If the xattr's value size is long enough the kernel will warn and then will fail the xfstests test case. Just print part of the value string if it's too long. At the same time fix the function name issue in the debug logs. Link: https://tracker.ceph.com/issues/58404 Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov