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Message-Id: <20251103-dir-deleg-ro-v4-0-961b67adee89@kernel.org>
Date: Mon, 03 Nov 2025 07:52:28 -0500
From: Jeff Layton <jlayton@...nel.org>
To: Miklos Szeredi <miklos@...redi.hu>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
Chuck Lever <chuck.lever@...cle.com>,
Alexander Aring <alex.aring@...il.com>,
Trond Myklebust <trondmy@...nel.org>, Anna Schumaker <anna@...nel.org>,
Steve French <sfrench@...ba.org>, Paulo Alcantara <pc@...guebit.org>,
Ronnie Sahlberg <ronniesahlberg@...il.com>,
Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
Bharath SM <bharathsm@...rosoft.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>,
David Howells <dhowells@...hat.com>, Tyler Hicks <code@...icks.com>,
NeilBrown <neil@...wn.name>, Olga Kornievskaia <okorniev@...hat.com>,
Dai Ngo <Dai.Ngo@...cle.com>, Amir Goldstein <amir73il@...il.com>,
Namjae Jeon <linkinjeon@...nel.org>, Steve French <smfrench@...il.com>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
Carlos Maiolino <cem@...nel.org>, Kuniyuki Iwashima <kuniyu@...gle.com>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nfs@...r.kernel.org, linux-cifs@...r.kernel.org,
samba-technical@...ts.samba.org, netfs@...ts.linux.dev,
ecryptfs@...r.kernel.org, linux-unionfs@...r.kernel.org,
linux-xfs@...r.kernel.org, netdev@...r.kernel.org,
Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v4 00/17] vfs: recall-only directory delegations for knfsd
Behold, another version of the directory delegation patchset. This
version contains support for recall-only delegations. Support for
CB_NOTIFY will be forthcoming (once the client-side patches have caught
up).
This main differences in this version are to address Christian's review
comments. I left the R-b's from Neil and Jan intact. There are some
changes to the first few patches to add support for struct
delegated_inode, but I didn't think they were significant enough to
remove the R-b lines. Let me know if that's a problem for anyone.
Thanks!
Jeff
Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
Changes in v4:
- Split lease_alloc() changes into separate patch
- new patches to switch break_lease() to use single set of flags
- add struct delegated_inode and use that instead of struct inode **
- add struct createdata and use that as argument to vfs_create()
- Rebase onto brauner/vfs-6.19.directory.delegation
- Make F_GETDELEG take and fill out struct delegation too
- Link to v3: https://lore.kernel.org/r/20251021-dir-deleg-ro-v3-0-a08b1cde9f4c@kernel.org
Changes in v3:
- Fix potential nfsd_file refcount leaks on GET_DIR_DELEGATION error
- Add missing parent dir deleg break in vfs_symlink()
- Add F_SETDELEG/F_GETDELEG support to fcntl()
- Link to v2: https://lore.kernel.org/r/20251017-dir-deleg-ro-v2-0-8c8f6dd23c8b@kernel.org
Changes in v2:
- handle lease conflict resolution inside of nfsd
- drop the lm_may_setlease lock_manager operation
- just add extra argument to vfs_create() instead of creating wrapper
- don't allocate fsnotify_mark for open directories
- Link to v1: https://lore.kernel.org/r/20251013-dir-deleg-ro-v1-0-406780a70e5e@kernel.org
---
Jeff Layton (17):
filelock: make lease_alloc() take a flags argument
filelock: rework the __break_lease API to use flags
filelock: add struct delegated_inode
filelock: push the S_ISREG check down to ->setlease handlers
vfs: add try_break_deleg calls for parents to vfs_{link,rename,unlink}
vfs: allow mkdir to wait for delegation break on parent
vfs: allow rmdir to wait for delegation break on parent
vfs: break parent dir delegations in open(..., O_CREAT) codepath
vfs: add struct createdata for passing arguments to vfs_create()
vfs: make vfs_create break delegations on parent directory
vfs: make vfs_mknod break delegations on parent directory
vfs: make vfs_symlink break delegations on parent dir
filelock: lift the ban on directory leases in generic_setlease
nfsd: allow filecache to hold S_IFDIR files
nfsd: allow DELEGRETURN on directories
nfsd: wire up GET_DIR_DELEGATION handling
vfs: expose delegation support to userland
drivers/base/devtmpfs.c | 6 +-
fs/attr.c | 2 +-
fs/cachefiles/namei.c | 2 +-
fs/ecryptfs/inode.c | 19 +++--
fs/fcntl.c | 14 ++++
fs/fuse/dir.c | 1 +
fs/init.c | 6 +-
fs/locks.c | 97 +++++++++++++++++-------
fs/namei.c | 183 +++++++++++++++++++++++++++++++++------------
fs/nfs/nfs4file.c | 2 +
fs/nfsd/filecache.c | 57 ++++++++++----
fs/nfsd/filecache.h | 2 +
fs/nfsd/nfs3proc.c | 9 ++-
fs/nfsd/nfs4proc.c | 22 +++++-
fs/nfsd/nfs4recover.c | 6 +-
fs/nfsd/nfs4state.c | 103 ++++++++++++++++++++++++-
fs/nfsd/state.h | 5 ++
fs/nfsd/vfs.c | 32 ++++----
fs/nfsd/vfs.h | 2 +-
fs/open.c | 17 +++--
fs/overlayfs/overlayfs.h | 15 ++--
fs/posix_acl.c | 8 +-
fs/smb/client/cifsfs.c | 3 +
fs/smb/server/vfs.c | 15 ++--
fs/utimes.c | 4 +-
fs/xattr.c | 12 +--
fs/xfs/scrub/orphanage.c | 2 +-
include/linux/filelock.h | 98 ++++++++++++++++++------
include/linux/fs.h | 33 +++++---
include/linux/xattr.h | 4 +-
include/uapi/linux/fcntl.h | 10 +++
net/unix/af_unix.c | 2 +-
32 files changed, 605 insertions(+), 188 deletions(-)
---
base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
change-id: 20251013-dir-deleg-ro-d0fe19823b21
Best regards,
--
Jeff Layton <jlayton@...nel.org>
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