Merge branch 'vfs-6.19.directory.locking' into base.vfs-6.19.ovl

Bring in the directory locking changes as they touch overlayfs in a
pretty substantial way and we are about to change the credential
override semantics quite substantially as well.

Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --cc fs/btrfs/ioctl.c
Simple merge

diff --cc fs/overlayfs/copy_up.c
Simple merge

diff --cc fs/smb/server/smb2pdu.c
Simple merge