Commit d67cd907 authored by Dai Ngo's avatar Dai Ngo Committed by Chuck Lever
Browse files

locks: allow support for write delegation 



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: default avatarDai Ngo <dai.ngo@oracle.com>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent f16ff1ca

fs/locks.c

+0 −7
Original line number Diff line number Diff line
@@ -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);