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SubjectRe: [PATCH] only use 48-bit lba when necessary
Juan Quintela wrote:

>Reason is that:
>if (expr)
> var = true;
> var = false;
>is always a bad construct.
>var = expr;
>is a better construct to express that meaning.

Yes, but:

if (expr1 && expr2)
var = true;
var = false;
is usually better turned into something that avoids jumps
when it's safe to evaluate both parts unconditionally:

var = (expr1 != 0) & (expr2 != 0);

or (if you can stand it):

var = !!expr1 & !!expr2;

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