https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=284186
--- Comment #2 from commit-h...@freebsd.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=709c18911ad70978d47198556c0fb1c0e703fb68 commit 709c18911ad70978d47198556c0fb1c0e703fb68 Author: Rick Macklem <rmack...@freebsd.org> AuthorDate: 2025-01-20 21:51:33 +0000 Commit: Rick Macklem <rmack...@freebsd.org> CommitDate: 2025-01-20 21:51:33 +0000 nfsd: Add support for the NFSv4.2 change_attr_type attribute Richard Kojedzinszky reported an intermittent problem where the Linux NFSv4.2 client would sometimes not see changes done to a directory by another client, although the change attribute for the directory had changed. A test patch that added the change_attr_type attribute to the server and always returned NFS4_CHANGE_TYPE_VERSION_COUNTER_NOPNFS seems to have resolved the issue. Somewhat oddly, the Linux knfsd server does not support this attribute but does not seem to exhibit the stale caching problem. This patch uses the VFCF_FILEREVINC flag on a file system (UFS, ZFS) to return NFS4_CHANGE_TYPE_VERSION_COUNTER_NOPNFS. It also returns NFS4_CHANGE_TYPE_TIME_METADATA if VFCF_FILEREVCT is set, which may be useful for exported fuse file systems. PR: 284186 Reported by: Richard Kojedzinszky <rich...@kojedz.in> Tested by: Richard Kojedzinszky <rich...@kojedz.in> MFC after: 2 weeks sys/fs/nfs/nfs_commonsubs.c | 32 ++++++++++++++++++++++++++++++++ sys/fs/nfs/nfsproto.h | 11 ++++++++++- 2 files changed, 42 insertions(+), 1 deletion(-) -- You are receiving this mail because: You are the assignee for the bug.
