foffset_unlock
foffset_unlock(fp, offset, error != 0 ? FOF_NOUPDATE : 0);
foffset_unlock(fp, foffset, 0);
foffset_unlock(infp, inoff, 0);
foffset_unlock(outfp, outoff, 0);
foffset_unlock(fp, uio->uio_offset, flags);
foffset_unlock(fp, offset, error != 0 ? FOF_NOUPDATE : 0);
void foffset_unlock(struct file *fp, off_t val, int flags);