On Sat, 2023-05-20 at 14:36 -0700, Dai Ngo wrote:
> Remove the check for F_WRLCK in generic_add_lease to allow file_lock
> to be used for write delegation.
>
> First consumer is NFSD.
>
> Signed-off-by: Dai Ngo <dai.ngo@xxxxxxxxxx>
> ---
> fs/locks.c | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/fs/locks.c b/fs/locks.c
> index df8b26a42524..08fb0b4fd4f8 100644
> --- a/fs/locks.c
> +++ b/fs/locks.c
> @@ -1729,13 +1729,6 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr
> if (is_deleg && !inode_trylock(inode))
> return -EAGAIN;
>
> - if (is_deleg && arg == F_WRLCK) {
> - /* Write delegations are not currently supported: */
> - inode_unlock(inode);
> - WARN_ON_ONCE(1);
> - return -EINVAL;
> - }
> -
> percpu_down_read(&file_rwsem);
> spin_lock(&ctx->flc_lock);
> time_out_leases(inode, &dispose);
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
