Merge tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- CB_NOTIFY support for NFSD's NFSv4.1 directory delegations

The server used

Merge tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- CB_NOTIFY support for NFSD's NFSv4.1 directory delegations

The server used to recall a delegation as soon as the directory
changed. NFSD now watches delegated directories through fsnotify and
reports adds, removes, renames, and directory attribute changes,
carrying the filehandle and attributes of the affected entry, so
clients can keep their caches. Some of the NOTIFY4 flags come from
RFC 8881bis (Jeff Layton)

- Continued netlink work

A new server-stats-get operation reports what /proc/net/rpc/nfsd
publishes, plus NFSv4 callback counts, and SUNRPC now keeps its
per-procedure call counts per network namespace, so a container sees
its own numbers. nfsstat reads all of this over netlink, with a
procfs fallback for older kernels (Jeff Layton)

- Remove SUNRPC service thread pool mode selection

Per node is the right choice on any host we run today, so the auto,
global, and percpu modes have been removed. A single-node host still
gets one pool. A multi-NUMA host now gets a pool per node.

sunrpc.pool_mode accepts the old names but no longer selects
anything.

- Bug fixes, clean-ups, and small optimizations:
- async COPY offload rework (Jeff Layton)
- more use-after-free fixes in the NFSv4 state revocation paths
- percpu counter contention removed from the reply cache and IO
accounting
- a long list of hardening fixes (Chris Mason)

Sincere thanks to all contributors, reviewers, testers, and bug
reporters who participated in the v7.3 NFSD development cycle.

* tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (182 commits)
nfsd: export NFSv4 callback op stats via netlink
nfsd: count NFSv4 callback operations per netns
sunrpc: remove unused svc_version vs_count field
nfsd: implement server-stats-get netlink handler
sunrpc: use per-net counts in svc_seq_show()
sunrpc: add per-netns per-procedure call counts to svc_stat
NFSD: Document reply_cache_stats ABI
NFSD: Eliminate percpu counter contention in IO byte accounting
NFSD: Eliminate percpu counter contention in reply cache statistics
NFSD: Eliminate percpu counter contention in DRC memory accounting
NFSD: Fix off-by-one in DRC bucket pruning limit
NFSD: Relocate NFSv4 "supported attributes" to new header
NFSD: Relocate nfsd4_set_netaddr()
NFSD: Relocate nfsd_user_namespace()
NFSD: Move struct readdir_cd
NFSD: Move the export.h include from nfsd.h to auth.c
NFSD: Remove '#include "nfsd.h"' from fs/nfsd/cache.h
NFSD: include "netns.h"
NFSD: Explicitly include "stats.h"
NFSD: Make "stats.h" self-contained
...

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NFSD: Relocate NFSv4 "supported attributes" to new header

These NFSv4 attribute bitmask definitions live in nfsd.h, which
nearly every nfsd source file includes, yet only nfs4proc.c and
nfs4xdr.c re

NFSD: Relocate NFSv4 "supported attributes" to new header

These NFSv4 attribute bitmask definitions live in nfsd.h, which
nearly every nfsd source file includes, yet only nfs4proc.c and
nfs4xdr.c reference them. Move them to a dedicated header so only
those two consumers pull them in.

While moving the block, correct the stale QUOTA_* annotation: the
promised support never materialized, so these attributes are
unlikely to be supported any time soon rather than forthcoming.

Link: https://patch.msgid.link/20260712204554.125308-10-cel@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <cel@kernel.org>

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