[PATCH v4 00/17] vfs: recall-only directory delegations for knfsd
From: Jeff Layton <jlayton@kernel.org>
Date: 2025-11-03 12:52:50
Also in:
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). 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@kernel.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 (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: 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 [off-list ref]