kernel.git/fs/ceph/mds_client.c, branch linux-6.9.y

ceph: switch to use cap_delay_lock for the unlink delay list

2024-04-11T20:56:28Z

The same list item will be used in both cap_delay_list and cap_unlink_delay_list, so it's buggy to use two different locks to protect them. Cc: stable@vger.kernel.org Fixes: dbc347ef7f0c ("ceph: add ceph_cap_unlink_work to fire check_caps() immediately") Link: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/AODC76VXRAMXKLFDCTK4TKFDDPWUSCN5 Reported-by: Marc Ruhmann Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Tested-by: Marc Ruhmann Signed-off-by: Ilya Dryomov

ceph: add ceph_cap_unlink_work to fire check_caps() immediately

2024-02-13T10:22:54Z

When unlinking a file the check caps could be delayed for more than 5 seconds, but in MDS side it maybe waiting for the clients to release caps. This will use the cap_wq work queue and a dedicated list to help fire the check_caps() and dirty buffer flushing immediately. Link: https://tracker.ceph.com/issues/50223 Signed-off-by: Xiubo Li Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

ceph: always check dir caps asynchronously

2024-02-07T13:58:02Z

The MDS will issue the 'Fr' caps for async dirop, while there is buggy in kclient and it could miss releasing the async dirop caps, which is 'Fsxr'. And then the MDS will complain with: "[WRN] client.xxx isn't responding to mclientcaps(revoke) ..." So when releasing the dirop async requests or when they fail we should always make sure that being revoked caps could be released. Link: https://tracker.ceph.com/issues/50223 Signed-off-by: Xiubo Li Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov

Merge tag 'ceph-for-6.8-rc1' of https://github.com/ceph/ceph-client

2024-01-19T17:58:55Z

Pull ceph updates from Ilya Dryomov: "Assorted CephFS fixes and cleanups with nothing standing out" * tag 'ceph-for-6.8-rc1' of https://github.com/ceph/ceph-client: ceph: get rid of passing callbacks in __dentry_leases_walk() ceph: d_obtain_{alias,root}(ERR_PTR(...)) will do the right thing ceph: fix invalid pointer access if get_quota_realm return ERR_PTR ceph: remove duplicated code in ceph_netfs_issue_read() ceph: send oldest_client_tid when renewing caps ceph: rename create_session_open_msg() to create_session_full_msg() ceph: select FS_ENCRYPTION_ALGS if FS_ENCRYPTION ceph: fix deadlock or deadcode of misusing dget() ceph: try to allocate a smaller extent map for sparse read libceph: remove MAX_EXTENTS check for sparse reads ceph: reinitialize mds feature bit even when session in open ceph: skip reconnecting if MDS is not ready

ceph: send oldest_client_tid when renewing caps

2024-01-15T14:40:51Z

Update the oldest_client_tid via the session renew caps msg to make sure that the MDSs won't pile up the completed request list in a very large size. [ idryomov: drop inapplicable comment ] Link: https://tracker.ceph.com/issues/63364 Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov

ceph: rename create_session_open_msg() to create_session_full_msg()

2024-01-15T14:40:51Z

Makes the create session msg helper to be more general and could be used by other ops. Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov

ceph: reinitialize mds feature bit even when session in open

2024-01-15T14:40:50Z

Following along the same lines as per the user-space fix. Right now this isn't really an issue with the ceph kernel driver because of the feature bit laginess, however, that can change over time (when the new snaprealm info type is ported to the kernel driver) and depending on the MDS version that's being upgraded can cause message decoding issues - so, fix that early on. Link: http://tracker.ceph.com/issues/63188 Signed-off-by: Venky Shankar Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: skip reconnecting if MDS is not ready

2024-01-15T14:40:50Z

When MDS closed the session the kclient will send to reconnect to it immediately, but if the MDS just restarted and still not ready yet, such as still in the up:replay state and the sessionmap journal logs hasn't be replayed, the MDS will close the session. And then the kclient could remove the session and later when the mdsmap is in RECONNECT phrase it will skip reconnecting. But the MDS will wait until timeout and then evict the kclient. Just skip sending the reconnection request until the MDS is ready. Link: https://tracker.ceph.com/issues/62489 Signed-off-by: Xiubo Li Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov

dentry: switch the lists of children to hlist

2023-11-25T07:32:13Z

Saves a pointer per struct dentry and actually makes the things less clumsy. Cleaned the d_walk() and dcache_readdir() a bit by use of hlist_for_... iterators. A couple of new helpers - d_first_child() and d_next_sibling(), to make the expressions less awful. Reviewed-by: Christian Brauner Signed-off-by: Al Viro

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