linux.git/include/linux/ceph, branch v6.18-rc2

libceph: pass the message pointer instead of loading con->out_msg

2025-10-08T21:30:46+00:00

This pointer is in a register anyway, so let's use that instead of
reloading from memory everywhere.

[ idryomov: formatting ]

Signed-off-by: Max Kellermann 
Reviewed-by: Viacheslav Dubeyko 
Signed-off-by: Ilya Dryomov

libceph: make ceph_con_get_out_msg() return the message pointer

2025-10-08T21:30:46+00:00

The caller in messenger_v1.c loads it anyway, so let's keep the
pointer in the register instead of reloading it from memory.  This
eliminates a tiny bit of unnecessary overhead.

Signed-off-by: Max Kellermann 
Reviewed-by: Viacheslav Dubeyko 
Signed-off-by: Ilya Dryomov

libceph: Use HMAC-SHA256 library instead of crypto_shash

2025-10-08T21:30:45+00:00

Use the HMAC-SHA256 library functions instead of crypto_shash.  This is
simpler and faster.

Signed-off-by: Eric Biggers 
Reviewed-by: Viacheslav Dubeyko 
Signed-off-by: Ilya Dryomov

ceph: Remove osd_client deadcode

2025-04-03T19:35:32+00:00

osd_req_op_extent_osd_data_pagelist() was added in 2013 as part of
commit a4ce40a9a7c1 ("libceph: combine initializing and setting osd data")
but never used.

The last use of osd_req_op_cls_request_data_pagelist() was removed in
2017's commit ecd4a68a26a2 ("rbd: switch rbd_obj_method_sync() to
ceph_osdc_call()")

Remove them.

Signed-off-by: Dr. David Alan Gilbert 
Reviewed-by: Viacheslav Dubeyko 
Signed-off-by: Ilya Dryomov

ceph: streamline request head structures in MDS client

2025-01-27T15:07:42+00:00

The existence of the ceph_mds_request_head_old structure in the MDS
client code is no longer required due to improvements in handling
different MDS request header versions. This patch removes the now
redundant ceph_mds_request_head_old structure and replaces its usage
with the flexible and extensible ceph_mds_request_head structure.

Changes include:
- Modification of find_legacy_request_head to directly cast the
  pointer to ceph_mds_request_head_legacy without going through the
  old structure.
- Update sizeof calculations in create_request_message to use
  offsetofend for consistency and future-proofing, rather than
  referencing the old structure.
- Use of the structured ceph_mds_request_head directly instead of the
  old one.

Additionally, this consolidation normalizes the handling of
request_head_version v1 to align with versions v2 and v3, leading to
a more consistent and maintainable codebase.

These changes simplify the codebase and reduce potential confusion
stemming from the existence of an obsolete structure.

Signed-off-by: Liang Jie 
Reviewed-by: Viacheslav Dubeyko 
Signed-off-by: Ilya Dryomov

ceph: correct ceph_mds_cap_peer field name

2024-11-19T10:08:17+00:00

The peer seq is used as the issue_seq. Use that name for consistency.
See also ceph.git commit 1da6ef237fc7 ("include/ceph_fs: correct
ceph_mds_cap_peer field name").

Link: https://tracker.ceph.com/issues/66704
Signed-off-by: Patrick Donnelly 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

ceph: correct ceph_mds_cap_item field name

2024-11-19T10:08:17+00:00

The issue_seq is sent with bulk cap releases, not the current sequence
number. See also ceph.git commit 655cddb7c9f3 ("include/ceph_fs: correct
ceph_mds_cap_item field name").

Link: https://tracker.ceph.com/issues/66704
Signed-off-by: Patrick Donnelly 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: Remove unused ceph_osdc_watch_check

2024-11-18T16:34:35+00:00

ceph_osdc_watch_check() has been unused since it was added in commit
b07d3c4bd727 ("libceph: support for checking on status of watch")

Remove it.

Signed-off-by: Dr. David Alan Gilbert 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: Remove unused pagevec functions

2024-11-18T16:34:35+00:00

ceph_copy_user_to_page_vector() has been unused since 2013's commit
e8344e668915 ("ceph: Implement writev/pwritev for sync operation.")

ceph_copy_to_page_vector() has been unused since 2012's commit
913d2fdcf605 ("rbd: always pass ops array to rbd_req_sync_op()")

Remove them.

Signed-off-by: Dr. David Alan Gilbert 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: Remove unused ceph_pagelist functions

2024-11-18T16:34:35+00:00

ceph_pagelist_truncate() and ceph_pagelist_set_cursor() have been unused
since commit
39be95e9c8c0 ("ceph: ceph_pagelist_append might sleep while atomic")

Remove them.

Signed-off-by: Dr. David Alan Gilbert 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov