ARC_BUF_FLAG_COMPRESSED
buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
buf->b_flags |= ARC_BUF_FLAG_COMPRESSED;
buf->b_flags |= ARC_BUF_FLAG_COMPRESSED;
buf->b_flags |= (ARC_BUF_FLAG_COMPRESSED | ARC_BUF_FLAG_ENCRYPTED);
buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
buf->b_flags &= ~ARC_BUF_FLAG_COMPRESSED;
#define ARC_BUF_COMPRESSED(buf) ((buf)->b_flags & ARC_BUF_FLAG_COMPRESSED)
ASSERT(!(buf->b_flags & ARC_BUF_FLAG_COMPRESSED));