kernel/linux.git/include/linux/ceph/ceph_fs.h, branch v6.6.132

Revert "ceph: make members in struct ceph_mds_request_args_ext a union"

2023-09-18T10:04:50+00:00

This reverts commit 3af5ae22030cb59fab4fba35f5a2b62f47e14df9. ceph_mds_request_args_ext was already (and remains to be) a union. An additional anonymous union inside is bogus: union ceph_mds_request_args_ext { union { union ceph_mds_request_args old; struct { ... } __attribute__ ((packed)) setattr_ext; }; } Signed-off-by: Ilya Dryomov Reviewed-by: Xiubo Li

ceph: make num_fwd and num_retry to __u32

2023-08-31T12:56:27+00:00

The num_fwd in MClientRequestForward is int32_t, while the num_fwd in ceph_mds_request_head is __u8. This is buggy when the num_fwd is larger than 256 it will always be truncate to 0 again. But the client couldn't recoginize this. This will make them to __u32 instead. Because the old cephs will directly copy the raw memories when decoding the reqeust's head, so we need to make sure this kclient will be compatible with old cephs. For newer cephs they will decode the requests depending the version, which will be much simpler and easier to extend new members. Link: https://tracker.ceph.com/issues/62145 Signed-off-by: Xiubo Li Reviewed-by: Alexander Mikhalitsyn Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: make members in struct ceph_mds_request_args_ext a union

2023-08-31T12:56:27+00:00

In ceph mainline it will allow to set the btime in the setattr request and just add a 'btime' member in the union 'ceph_mds_request_args' and then bump up the header version to 4. That means the total size of union 'ceph_mds_request_args' will increase sizeof(struct ceph_timespec) bytes, but in kclient it will increase the sizeof(setattr_ext) bytes for each request. Since the MDS will always depend on the header's vesion and front_len members to decode the 'ceph_mds_request_head' struct, at the same time kclient hasn't supported the 'btime' feature yet in setattr request, so it's safe to do this change here. This will save 48 bytes memories for each request. Fixes: 4f1ddb1ea874 ("ceph: implement updated ceph_mds_request_head structure") Signed-off-by: Xiubo Li Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: fscrypt_auth handling for ceph

2023-08-22T07:01:48+00:00

Most fscrypt-enabled filesystems store the crypto context in an xattr, but that's problematic for ceph as xatts are governed by the XATTR cap, but we really want the crypto context as part of the AUTH cap. Because of this, the MDS has added two new inode metadata fields: fscrypt_auth and fscrypt_file. The former is used to hold the crypto context, and the latter is used to track the real file size. Parse new fscrypt_auth and fscrypt_file fields in inode traces. For now, we don't use fscrypt_file, but fscrypt_auth is used to hold the fscrypt context. Allow the client to use a setattr request for setting the fscrypt_auth field. Since this is not a standard setattr request from the VFS, we add a new field to __ceph_setattr that carries ceph-specific inode attrs. Have the set_context op do a setattr that sets the fscrypt_auth value, and get_context just return the contents of that field (since it should always be available). 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: fix incorrect old_size length in ceph_mds_request_args

2022-08-02T22:54:12+00:00

The 'old_size' is a __le64 type since birth, not sure why the kclient incorrectly switched it to __le32. This change is okay won't break anything because union will always allocate more memory than the 'open' member needed. Rename 'file_replication' to 'pool' as ceph did. Though this 'open' struct may never be used in kclient in future, it's confusing when going through the ceph code. Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov

ceph: fix the incorrect comment for the ceph_mds_caps struct

2022-08-02T22:54:12+00:00

The incorrect comment is misleading. Acutally the last members in ceph_mds_caps strcut is a union for none export and export bodies. Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: do not release the global snaprealm until unmounting

2022-03-01T17:26:37+00:00

The global snaprealm would be created and then destroyed immediately every time when updating it. URL: https://tracker.ceph.com/issues/54362 Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: remove incorrect and unused CEPH_INO_DOTDOT macro

2022-03-01T17:26:37+00:00

Ceph have removed this macro and the 0x3 will be use for global dummy snaprealm. Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: add getvxattr op

2022-03-01T17:26:37+00:00

Problem: Some directory vxattrs (e.g. ceph.dir.pin.random) are governed by information that isn't necessarily shared with the client. Add support for the new GETVXATTR operation, which allows the client to query the MDS directly for vxattrs. When the client is queried for a vxattr that doesn't have a special handler, have it issue a GETVXATTR to the MDS directly. Solution: Adds new getvxattr op to fetch ceph.dir.pin*, ceph.dir.layout* and ceph.file.layout* vxattrs. If the entire layout for a dir or a file is being set, then it is expected that the layout be set in standard JSON format. Individual field value retrieval is not wrapped in JSON. The JSON format also applies while setting the vxattr if the entire layout is being set in one go. As a temporary measure, setting a vxattr can also be done in the old format. The old format will be deprecated in the future. URL: https://tracker.ceph.com/issues/51062 Signed-off-by: Milind Changire Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: don't rely on error_string to validate blocklisted session.

2021-11-08T02:29:51+00:00

The "error_string" in the metadata of MClientSession is being parsed by kclient to validate whether the session is blocklisted. The "error_string" is for humans and shouldn't be relied on it. Hence added the flag to MClientsession to indicate the session is blocklisted. [ jlayton: minor formatting cleanup ] URL: https://tracker.ceph.com/issues/47450 Signed-off-by: Kotresh HR Signed-off-by: Jeff Layton Signed-off-by: Ilya Dryomov