nfs_lock          800 fs/nfs/file.c  EXPORT_SYMBOL_GPL(nfs_lock);
nfs_lock          844 fs/nfs/file.c  	.lock		= nfs_lock,
nfs_lock          371 fs/nfs/internal.h int nfs_lock(struct file *, int, struct file_lock *);
nfs_lock          278 fs/nfs/nfs4file.c 	.lock		= nfs_lock,