linux/fs/ceph/debugfs.c, branch v6.7

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: pass the mdsc to several helpers

2023-11-03T22:28:33Z

We will use the 'mdsc' to get the global_id in the following commits. 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: fix potential use-after-free bug when trimming caps

2023-04-30T10:37:28Z

When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash. We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed. Cc: stable@vger.kernel.org Link: https://tracker.ceph.com/issues/43272 Signed-off-by: Xiubo Li Reviewed-by: Luís Henriques Signed-off-by: Ilya Dryomov

ceph: use tracked average r/w/m latencies to display metrics in debugfs

2022-03-21T12:35:16Z

Signed-off-by: Venky Shankar Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov

ceph: add a new metric to keep track of remote object copies

2021-11-08T02:29:52Z

This patch adds latency and size metrics for remote object copies operations ("copyfrom"). For now, these metrics will be available on the client only, they won't be sent to the MDS. Signed-off-by: Luís Henriques Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: clean-up metrics data structures to reduce code duplication

2021-11-08T02:29:52Z

This patch modifies struct ceph_client_metric so that each metric block (read, write and metadata) becomes an element in a array. This allows to also re-write the helper functions that handle these blocks, making them simpler and, above all, reduce the amount of copy&paste every time a new metric is added. Thus, for each of these metrics there will be a new struct ceph_metric entry that'll will contain all the sizes and latencies fields (and a lock). Note however that the metadata metric doesn't really use the size_fields, and thus this metric won't be shown in the debugfs '../metrics/size' file. Signed-off-by: Luís Henriques Reviewed-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: split 'metric' debugfs file into several files

2021-11-08T02:29:52Z

Currently, all the metrics are grouped together in a single file, making it difficult to process this file from scripts. Furthermore, as new metrics are added, processing this file will become even more challenging. This patch turns the 'metric' file into a directory that will contain several files, one for each metric. Signed-off-by: Luís Henriques Reviewed-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: add IO size metrics support

2021-06-28T22:15:51Z

This will collect IO's total size and then calculate the average size, and also will collect the min/max IO sizes. The debugfs will show the size metrics in bytes and will let the userspace applications to switch to what they need. URL: https://tracker.ceph.com/issues/49913 Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: rename the metric helpers

2021-04-27T21:52:23Z

Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov

ceph: add status debugfs file

2020-12-14T22:21:47Z

This will help list some useful client side info, like the client entity address/name and blocklisted status, etc. URL: https://tracker.ceph.com/issues/48057 Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov