[PATCH v6 00/17] vfs: recall-only directory delegations for knfsd
From: Jeff Layton <jlayton@kernel.org>
Date: 2025-11-11 14:13:02
Also in:
linux-api, linux-cifs, linux-fsdevel, linux-nfs, linux-unionfs, linux-xfs, lkml, netfs
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). The main changes here are in response to Jan's comments. I also changed struct delegation use to fixed-with integer types. Thanks! Jeff Signed-off-by: Jeff Layton <jlayton@kernel.org> --- Changes in v6: - Change struct delegation to use fixed-width types, and add explicit padding - Link to v5: https://lore.kernel.org/r/20251105-dir-deleg-ro-v5-0-7ebc168a88ac@kernel.org (local) Changes in v5: - drop struct createdata patch - add patch to drop some unneeded arguments to vfs_create() - make fcntl_getdeleg() vet delegation->d_flags - Link to v4: https://lore.kernel.org/r/20251103-dir-deleg-ro-v4-0-961b67adee89@kernel.org (local) 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 (local) 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 (local) 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 (local) --- 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: clean up argument list for 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 | 11 ++- fs/fcntl.c | 13 ++++ fs/fuse/dir.c | 1 + fs/init.c | 6 +- fs/locks.c | 100 +++++++++++++++++++++------- fs/namei.c | 162 +++++++++++++++++++++++++++++++++------------ fs/nfs/nfs4file.c | 2 + fs/nfsd/filecache.c | 57 ++++++++++++---- fs/nfsd/filecache.h | 2 + fs/nfsd/nfs3proc.c | 2 +- fs/nfsd/nfs4proc.c | 22 +++++- fs/nfsd/nfs4recover.c | 6 +- fs/nfsd/nfs4state.c | 103 +++++++++++++++++++++++++++- fs/nfsd/state.h | 5 ++ fs/nfsd/vfs.c | 16 ++--- fs/nfsd/vfs.h | 2 +- fs/open.c | 12 ++-- fs/overlayfs/overlayfs.h | 10 +-- fs/posix_acl.c | 8 +-- fs/smb/client/cifsfs.c | 3 + fs/smb/server/vfs.c | 9 ++- fs/utimes.c | 4 +- fs/xattr.c | 12 ++-- fs/xfs/scrub/orphanage.c | 2 +- include/linux/filelock.h | 98 +++++++++++++++++++++------ include/linux/fs.h | 24 ++++--- include/linux/xattr.h | 4 +- include/uapi/linux/fcntl.h | 11 +++ net/unix/af_unix.c | 2 +- 32 files changed, 543 insertions(+), 176 deletions(-) --- base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 change-id: 20251013-dir-deleg-ro-d0fe19823b21 Best regards, -- Jeff Layton [off-list ref]