en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/Documentation/ABI/testing/procfs-nfsd-reply_cache_stats#d141ec2825b4d3ec52f27c43bdd864090159273a Merge tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxPull 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 bugreporters 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 ... List of files: /linux/Documentation/ABI/testing/procfs-nfsd-reply_cache_stats Thu, 20 Aug 2026 21:39:56 +0200 Linus Torvalds <torvalds@linux-foundation.org> http://kernelsources.org:8080/source/history/linux/Documentation/ABI/testing/procfs-nfsd-reply_cache_stats#284a474e947afe1d48bbd820c5327a911e685332 NFSD: Document reply_cache_stats ABI/proc/fs/nfsd/reply_cache_stats has been present since v3.10 buthas no entry in Documentation/ABI/. Add one under testing/ thatdocuments the current field set, types, and parsing expectations.This establishes a contract that parsers should match on fieldname rather than line position, allowing fields to be added orremoved across kernel versions without breaking well-writtenconsumers.Reviewed-by: Jeff Layton <jlayton@kernel.org>Reviewed-by: NeilBrown <neil@brown.name>Link: https://patch.msgid.link/20260717001232.438792-6-cel@kernel.orgSigned-off-by: Chuck Lever <cel@kernel.org> List of files: /linux/Documentation/ABI/testing/procfs-nfsd-reply_cache_stats Fri, 17 Jul 2026 02:12:32 +0200 Chuck Lever <cel@kernel.org>