Re: [PATCH v7 00/20] nfsd: add support for CB_NOTIFY callbacks in directory delegations

[Chuck Lever]

On Tue, 16 Jun 2026 07:58:43 -0400, Jeff Layton wrote:
> This patchset builds on the directory delegation work we did a few
> months ago to add support for CB_NOTIFY callbacks for some events. In
> particular, creates, unlinks and renames. The server also sends updated
> directory attributes in the notifications. With this support, the client
> can register interest in a directory and get notifications about changes
> within it without losing its lease.
> 
> [...]

Applied to nfsd-testing, thanks!

[01/20] nfsd: check fl_lmops in nfsd_breaker_owns_lease()
        commit: 5829ecd7e99a7ed8da577f30a3818e219e0f939a
[02/20] nfsd: add protocol support for CB_NOTIFY
        commit: 02a63ce55455420340d9d90721ba6f0914301399
[03/20] nfs_common: add new NOTIFY4_* flags proposed in RFC8881bis
        commit: b08cfbdd37224bd6963735da9532744d11d52020
[04/20] nfsd: allow nfsd to get a dir lease with an ignore mask
        commit: 124ee5f1be54c060e0a23a0ac62ecd3802094a59
[05/20] nfsd: update the fsnotify mark when setting or removing a dir delegation
        commit: 08c7feaff63d6a14ff0b868b44a5d03e2ced99e4
[06/20] nfsd: make nfsd4_callback_ops->prepare operation bool return
        commit: da30d09e299cd9a8e3928ab555eca7f4dc332f61
[07/20] nfsd: add callback encoding and decoding linkages for CB_NOTIFY
        commit: 046b4a0e1817482e2017db5262734ca35c691fce
[08/20] nfsd: use RCU to protect fi_deleg_file
        commit: 7d47d06e04e03d05be4ae7febdf81a7365054995
[09/20] nfsd: add data structures for handling CB_NOTIFY
        commit: 0db43bdffdc39bbc076c09630c87710f6c2ce3eb
[10/20] nfsd: add notification handlers for dir events
        commit: b557e3bcc740d87b1fb0b5d0fd9743ae2d9e6ece
[11/20] nfsd: apply the notify mask to the delegation when requested
        commit: 718bee77fdb46cb4074b113aa40a3c82e49bf13b
[12/20] nfsd: add helper to marshal a fattr4 from completed args
        commit: 2c495d8ec198888447018689ad33c2d52e52cb48
[13/20] nfsd: allow nfsd4_encode_fattr4_change() to work with no export
        commit: 498a0c7ad8710daaf9e92040b325055cebc31747
[14/20] nfsd: send basic file attributes in CB_NOTIFY
        commit: b78e9993ec52676ccebb161fd65996e18372f6c4
[15/20] nfsd: allow encoding a filehandle into fattr4 without a svc_fh
        commit: c2959ab33014d9aaefd2782f414cf0b78b991efa
[16/20] nfsd: add the filehandle to returned attributes in CB_NOTIFY
        commit: b4d7483c6e50fb9382f2f4977ed7eae86e4264b9
[17/20] nfsd: fix reply size estimate for GET_DIR_DELEGATION
        commit: 7c8674f3963bc3f4d2472c70884d350164fff25b
[18/20] nfsd: properly track requested child attributes
        commit: 744500529a2d378084909bfd277af18e62ce34ac
[19/20] nfsd: track requested dir attributes
        commit: df3ecee7ae57f6e1042556fa5f7b5dcae3b7b26d
[20/20] nfsd: add support to CB_NOTIFY for dir attribute changes
        commit: 0c072553ca525d62c7e8e63a6ecb7e88f84d07e0

--
Chuck Lever